新人教版九年级第五单元精选练习题附答案
新人教版九年级第五单元精选练习题附答案
Unit 5What are the shirts made of?
第一课时Section A(1a～2d）
Ⅰ.根据句意及汉语提示填写单词。
1. The ________(衬衫)is beautiful. I'll take it.
2. The cup is made of ________(玻璃).
3. Miss Zhu wears a ________(银色的)ring and looks more beautiful today.
4. I don't think it is convenient to eat food with a ________(餐叉)and knife.
5. It's relaxing to lie on the ________(草地)in the sun on a sunny morning.
Ⅱ.用括号内所给单词的适当形式填空。
6. The CD can help you know ________(wide) the knowledge of geography.
7. These ________(leaf)turn yellow in autumn.
8. Alice has lived in China for many years and she's been used to using ________(chopstick).
9. The factory ________(produce)two thousand lamps every week.
10. Dandong is ________(know)for its rice and seafood.
Ⅲ.单项选择。
( )11. —Can you tell me how tea is ________？
—Sorry，I don't know，either.
A. drink
B. produce
C. make
D. produced
( )12. It ________ that some students like playing better than studying.
A. seemed
B. seems
C. is seemed
D. is seeming
( )13. Rice ________ in the south of China.
A. grows
B. grow
C. is growing
D. is grown
( )14. —Your skirt feels so soft.
—Yes. It ________ silk.
A. is made from
B. is made of
C. makes from
D. makes of
( )15. —What are you ________ so many books for，Grandma?
—I'll give them away to the kids in West China.
A. packing
B. putting
C. getting
D. making
Ⅳ.根据汉语意思完成句子，每空一词。
16.这个地方以其乡村美景而著称。
The place ________ ________ ________ its beautiful countryside.
17.纸是由木头制成的。
Paper ________ ________ ________ wood.
18.迈克和汤姆都擅长汉语。
________ Mike ________ Tom are good at Chinese.
19.喝牛奶对我们的健康是有益的。
Drinking milk ________ ________ ________ our health.
20.就我所知，他将离开三个月。
________ ________ ________ I know，he will be away for three months.
Ⅴ.补全对话。
根据对话内容，从方框中选择合适的选项补全对话。(其中有两项多余)
A: Hi，Linda. You look great in this new dress.
B: __21__
A: __22__
B: It's made of silk. It feels quite soft.
A: Could you tell me where to buy a blouse? __23__
B: Sure! You can go to Jingzhu Shopping Center to buy one.__24__
A: Size M. I'd like a red one.
B: That's easy. I'd like a blouse，too.__25__
A: That's a good idea!
21.________22.________23.________ 24.________25.________
二课时Section A(3a～3c)
Ⅰ.根据句意及汉语提示填写单词。
1.My uncle has taught for twenty years at a ________(当地的)school.
2.Jane likes the ________(手提包)very much. She wants to buy it.
3.How was your ________(日常的)life?
4.My mother gave a ________(可移动的)phone as my birthday gift yesterday.
5.The girl comes from ________(法国).She speaks French very well.
Ⅱ.单项选择。
( )6.It's bad to throw about paper everywhere. We must avoid ________ that.
A. do
B. doing
C. did
D. to do
( )7.I visit three stores before ________ a T-shirt.
A. buy
B. bought
C. to buy
D. buying
( )8.I found ________ easy to work out the problem. I can do it by myself.
A. this
B. that
C. it
D. those
( )9.Many trees and flowers ________ in our city every year.
A. planted
B. are planted
C. were planted
D. plants
( )10.—Good news！Self－driving cars will come into use in one or two years. —Really？We're expecting to see how they ________.新课标第一网
A. are making
B. are made
C. make
D. will make
Ⅲ.根据汉语意思完成句子，每空一词。
11.不管花多长时间，我们必须找到那个男孩。
We have to find the boy，________ ________ how long it takes.
12.虽然工作很辛苦，但我还是乐在其中。
________ ________ it was hard work，I enjoyed it.
13.事实上，汤姆做任何事都比我细心。
________ ________，Tom does everything more carefully than me.
14.我希望有一天在世界各地我们都能买到中国制造的产品。
I hope we can buy products made in China in ________ ________ ________ the world.
15.中国如此擅长制造这些日常用品是多么伟大啊。
It's great that China is ________ ________ ________ making these ________ things.
Ⅳ.完形填空。
A student has a new technology. It can make children do more __16__ and also reduce(减少)the number of hours they spend watching TV every day. The technology is __17__ “Square－eyes”. It is a little sensor(感应器)and it is put in children's __18__.It can store(存储)the number of steps taken by a child during the day and __19__ this information to the family computer. Software(软件)then tells the __20__ how many hours of TV he or she can watch that evening. One hundred steps are equal to(等于)one minute of TV.__21__ children use up all of their TV time，they have to do more walking.
The inventor，Gillian Swan，says，“This will __22__ children to make exercise part of their daily life from an ear ly age.” She said that ten years ago，children were __23__ because they played outside __24__ their friends，while today's children __25__ too much time in front of the TV and hardly do exercise. That is why today's children have weight problems and become fat.
( )16.A.games B. studies C. practice D. exercise
( )17.A.watched B. named C. replied D. made
( )18.A.shoes B. glasses C. hats D. coats
( )19.A. take B. encourage C. read D. send
( )20.A. child B. doctor C. woman D. teacher
( )21.A.Unless B. Because C. Although D. If
( )22.A. agree B. allow C. help D. set
( )23.A. cheaper B. cleaner C. clearer D. healthier
( )24.A. for B. by C. with D. on
( )25.A. spend B. take C. cost D. make
第三课时Section A(4a～4c)
Ⅰ.根据句意及首字母或汉语提示填写单词。
1. The workers are paid by the ________(老板)on the last Tuesday of each month.
2. Armstrong was the first person to walk on the s________ of the moon.
3. This winter，my sister gave me a pair of g________. They kept my hands warm.
4. Alice comes from ________(德国).She speaks German very well.
5. My head is so big，but this ________(帽子)is so small.
Ⅱ.单项选择。
( )6. —Are there any ________ in your school?
—Yes，there are.
A. Germen
B. Germans
C. German
D. Germany
( )7.The scarf which is ________ silk ________ soft and comfortable.
A. made from；feels
B. made of；feels
C. made in；smells
D. made up of；smells
( )8.Many trees ________ on the streets every year. So the air is very fresh now.
A. plant
B. are planted
C. planted
D. were planted
( )9. —Is your kite made ________ your father?
—Yes，and it looks like a plane.
A. by
B. of
C. with
D. to
( )10. There was not ________ traffic on the road this morning.
A. many
B. much
C. some
D. few
Ⅲ.按要求完成下列句子，每空一词。
11.The school doesn't allow us to enter the chemistry lab without a teacher.(改为被动语态)
We ________ ________ to enter the chemistry lab without a teacher.
12.This bike is made of steel.(对画线部分提问)
________ this bike ________ of?
13.The flower is watered by Grandma every week.(改为否定句)
The flower ________ ________ by Grandma every week.
14.The model planes are made by hand.(对画线部分提问)
________ ________ the model planes made?
15.We often hear the girl sing happily in her room.(改为被动语态)
The girl ________ often ________ ________ sing happily in her room.
Ⅳ.短文填词。
根据短文内容和首字母提示，填写文中所缺单词，使短文完整、通顺。
Do you like eating raisins(葡萄干)？They are dried grapes that have been eaten w__16__ for thousands of years. Nearly 3,500 years ago，the first raisins were d__17__ as grapes that were drying in the sun on a vine(藤).In the past，Europeans used raisins as medicine and even as a f__18__ of money.
In America，raisins were seen after an 1873 h__19__ wave in California destroyed its valuable grapes，leaving only dried but tasty grapes. Soon，some f__20__ began developing seedless(无籽的) grapes in California. These grapes would be d__21__ in the sun and became the popular dark raisin we eat and enjoy today. Later，there was a kind of golden raisin. It was made by treating grapes with a chemical(化学物质)and using some special methods to p__22__ them.
Today，central California r__23__ the center of the world's raisin industry. It can p__24__ nearly 95 percent of the world's raisins.I__25__ sunny climate and hot temperatures provide the perfect conditions for grapes that are dried into raisins.
16.________17.________18.________19.________20.________
21.________ 22.________23.________24.________25.________
第四课时Section B(1a～1e)
Ⅰ.用括号内所给单词的适当形式填空。
1.Jack studies in an ________(internation) school.
2.When did your father take up ________(paint)?
3.Do you know how ________(make) kites?
4.How often ________ the kite festival ________(hold)?
5.The ________(compete) from all over the world took part in Weifang International Kite
Festival.
Ⅱ.用方框中所给短语的适当形式填空。
6.Your kid's room can ________________ light blue.
7.Where will you ________________ this summer，Lucia?
8.What activities did they do ________________？
9.There are ________________ blouses in that new clothing store.
10.We'll try ________________ the truth of the matter.
Ⅲ.单项选择。
( )11.—Where did you go on ________ vacation last week?
—I went to London.
A. a
B. an
C. the
D. /
( )12.—How can I learn English well?
—I think you should try ________ English every morning.
A. read
B. to read
C. reads
D. to reading
( )13.—I will travel to Mount Tai. Could you tell me something about it?
—Let me help you ________ the information about it.
A. finds
B. found
C. find out
D. looked for
( )14.Could you tell me ________ the problem?
A. solve
B. how can I solve
C. how to solve
D. what to solve
( )15.Now students in some schools ________ not to use mobile phones.
A. ask
B. asked
C. are asked
D. were asked
Ⅳ.补全对话。
根据对话情景，在每个空白处填上一个恰当的句子，使对话完整、连贯。
A: Good morning，Mr. Clinton.
B: Good morning，Mr.Brown.16.__________________
A: It's a pair of chopsticks.
B: A pair of chopsticks？17.______________________
A: It is made of silver.
B: Really？It must be very expensive.
A: Yes，you are right.
B: 18.________________________
A: More than 100 dollars. In fact，it is not made in the US.
B: 19.________________________
A: In China.
B: Oh, I see. But most chopsticks are made of wood or bamboo. 20.____________________ A: I think it is very beautiful. I like it very much.
Ⅴ.短文填空。
请用适当的词完成下列短文，每个空只能填写一个形式正确、意义相符的单词。
Last Saturday, I went out to see a film after supper. On my __21__ to the cinema, I met an Englishman. He looked puzzled (茫然的). So I walked up to him and said __22__ to him. His __23__ name was Kevin. I asked if I could help him. He told me he had __24__ his way. So I __25__ up the opportunity to see the film and took Kevin to his hotel.__26__ going there, I told him the great changes that had taken place in my hometown in the __27__ few years and Kevin told me __28__ interesting about his country.
Though I didn't see the film, I felt very __29__，for I had not only helped Kevin get out of __30__but also practiced my spoken English. I also realized that if I had not worked hard at English, I would not have been able to help Kevin.
21.________22.________23.________ 24.________ 25.________
26.________ 27.________ 28.________ 29.________ 30.________
第五课时Section B(2a～2e）
Ⅰ.根据句意及首字母提示填写单词。
1. It took them about three months to c________ the project.
2. Mike has a lovely pet cat. I________ name is Mimi.
3. Can you feel the h________ of the sun on your back?
4. Let's cut this piece of cloth into halves with s________.
5. Ice, snow and steam are different f________ of water.
Ⅱ.用方框中所给单词的适当形式填空。
6.They hold a party in ________ of their success.
7.Mary is playing happily with her friends. She is a ________ girl.
8.My father often tells me some ________ stories.
9.Today is Nick's birthday. His room is full of ________，flowers and nice presents.
10.Paper ________(cut) is one of the most popular traditional folk art forms in China.
Ⅲ.根据汉语意思完成句子，每空一词。
11.那边的山上覆盖着白雪。
The mountains over there ________ ________ ________ snow.
12.当我有困难的时候，她会帮助我。
She helps me when I am ________ ________.
13.根据那份报告，一些老人也喜欢玩电脑游戏。
________ ________ the report，some old people like computer games，too.
14.水加热后能变成水蒸气。
Water can be ________ ________ vapor when it is heated.
15.我的爸爸喜欢许多运动，例如，游泳和踢足球。
My father likes many sports，________ ________ swimming and playing football.
Ⅳ.短文填词。
用方框中所给单词的适当形式填空。(其中有两个单词是多余的)
Paper cutting can be seen in many parts of China during the Spring Festival.__16__ it has a long history of over 1，500 years. However，the ancient art __17__ is at risk of disappearing. V oyo Woo，a paper cutting artist，works hard and hopes to bring the art back to life.
V oyo Woo began to study the art of paper cutting __18__ she was 14 years old in her hometown in Southeast China. All the students at school had to learn the art. But she __19__ a special love for it. So her teacher gave her extra(额外的)__20__ after class.
Ms. Woo came to the U.S. after she __21__ college in 2008.When in the US，she was often __22__ to perform paper cutting at all kinds of __23__.Soon after，she decided to spread Chinese paper cutting to the rest of the world.
Ms. Woo said，“I saw so many people coming to __24__ and asking about paper cutting. I was surprised. Chinese art is for all people. I think it's time to promote (发扬) paper cutting to American people __25__ anyone who is interested. Perhaps it will also draw more and more Chinese people's attention and make them take an interest in it.”
16.________17.________18.________ 19.________20.________
21.________ 22.________23.________24.________ 25.________
Self Check
Ⅰ.单项选择。
( )1. Put on your ________，or you may make your hands dirty.
A. coat
B. socks
C. hat
D. gloves
( )2. —When did you ________ the project?
—Yesterday.
A. produce
B. complete
C. suggest
D. discover
( )3.The factory near my house can ________ 2，000 cars every month.
A. produce
B. accept
C. lead
D. invent
( )4. As we know，sky lanterns are covered ________ paper and the red paper cutting is cut ________ scissors.
A. with；with
B. with；in
C. by；with
D. in；by
( )5. —Hi，Alice. Did you go on ________ vacation to Weifang last week?
—Yes. I went to ________ international kite festival.
A. an；an
B. a；an
C. the；a
D. a；a
( )6.—The wall of our building is made of ________.
—That's good. So the room will be bright.
A. glass
B. steel
C. wood
D. paper
( )7.—Our English teacher always keeps his lessons ________.
—That's why he is so popular among his students.
A. lively
B. happily
C. freely
D. friendly
( )8.The clay pieces are fired ________ a very high heat after they are dried.
A. on
B. in
C. to
D. at
( )9.I'll finish the job，________ how long it takes.
A. until
B. unless
C. no matter
D. even though
( )10.—Why are you so late today?
—Because the ________ was so heavy. I spent about two hours driving here.
A. line
B. road
C. situation
D. traffic
Ⅱ.词汇运用。
A)根据句意及汉语提示填写单词。
11.You'd better buy a ________(棉) blouse. It feels comfortable and it's not expensive.
12.Maria likes to eat beef with a ________(餐叉) and a knife.
13.There are more ________(草) and flowers in the garden.
14.Danny is a ________(邮递员).His job is to collect and deliver letters.
15.________(法国) is a European country.
B)用括号内所给单词的适当形式填空。
16.What I need is ________(chopstick)，not forks.
17.Now Internet is ________(wide) used in the teaching field.
18.The tree has green ________(leaf) all year round.
19.Some ________(internation) meetings are held in our city every year.
20.He is an outgoing and ________(live) person.
Ⅲ.根据汉语意思完成句子，每空一词。
21.过去人们放飞孔明灯是为了在危难中求助。
In the old days，people ________ ________ sky lanterns ________ ________ ________ help when in trouble.
22.中国剪纸约有1,500多年的历史了。
Chinese ________ ________ has been around ________ ________ 1,500 years.
23.中国的陶土艺术非常有名。
________ ________ ________ is very famous.
24.太神奇了！几周以后黏土就变成了美丽的物品。
How amazing！The clay ________ ________ ________ objects of beauty after a few weeks.
25.这种气球是由什么制成的？
What is this kind of ________ ________ ________？
Ⅳ.完形填空。
A robot is a special kind of machine. It is a machine that can follow instructions(命令). __26__ it is a machine，it seldom makes mistakes or gets tired. And it __27__ complains(抱怨)，unless you tell it to!
Robots are around us. Some robots are used to __28__ things. For example，robots can help make cars. Some robots are used to explore(勘察)dangerous places. Some robots can help clean your house. Some robots can even __29__ human languages. They can be used to help answer telephone calls. Some robots look like __30__，but most robots do not. They just look like machines.
Long ago，people imagined __31__.Over 2，000 years ago，Homer，a famous poet(诗人)，imagined robots. His robots were made of gold，but they were not __32__.Nobody was able to make a real robot at that time. The __33__ real robot was made in 1961.It was called Unimate.
In the future，we will have even more robots. They will do things that we can't do，or that we don't want to do，or that are too __34__ for us. For example，robots will help us fight fires and illnesses and __35__ things. They will help make our life better.
( )26.A.Although B. If C. Because D. So
( )27.A.often B. never C. sometimes D. ever
( )28.A.move B. find C. get D. make
( )29.A.believe B. understand C. waste D. forget
( )30.A.humans B. plants C. cars D. planes
( )31.A.god B. space C. robots D. stars
( )32.A.strong B. smart C. good D. real
( )33.A.next B. other C. first D. last
( )34.A.dangerous B. easy C. comfortable D. strange
( )35.A.change B. discover C. give D.eat
Ⅴ.任务型阅读。
The World Wide Web turned 25 years old on March 12th.It has become a very important part in our daily lives. We can't imagine living without the web，the short form of the World Wide Web.
In 1989，a British engineer named Tim Berners-Lee came up with the idea of the Web. It is a group of “pages” of information that are connected to each other around the world.
That is the very beginning of the Web. Since then，the Web has greatly changed the way people live. With a click(点击)of a mouse we can read news，buy things，make friends and learn anything we're interested in.
Now，25 years after its birth，how will the Web influence life in the future？Scientists believe
there are both advantages and disadvantages.
A growing Web will help build “better relationships” between different cultures. Also in the future，everyday items could be connected to the Web. We could share plenty of information to make our daily lives more convenient. So one day in the future，your front door could send you a message.“Dear sir，everyone has left the house，but I'm still open！”
But scientists warn us that if we share personal information on the Internet it could get into the wrong hands.
“It's not wise to spend a whole day in front of the screen. People need to get close to nature and enjoy the sun. Never be controlled by the Internet.” said Berners-Lee.
根据短文内容，回答下列问题。
36.How old is the World Wide Web?
________________________________________________________________________
37.Who came up with the idea of the Web?
________________________________________________________________________
38.What can we do by clicking a mouse according to the passage?
________________________________________________________________________
39.Will the Web influence life in the future?
________________________________________________________________________
40.What could happen if we share personal information on the Internet?
________________________________________________________________________
单元写作小专题&Section B(3a～3b)
【单元写作目标】
能描述某种产品的材质、产地、用途及特殊性等信息。
1.能用“be made of/from/in/by…，be used for”等句型描述产品的信息；
2.能在文章中交替使用被动语态和主动语态；
3.能体现语言的丰富性，使文章更有合理性；
4.写作微技能:列提纲在英语写作中的运用。
一、语言积累
(一)Revision:根据下列表格中所给的单词，写出相应的动词原形或过去分词。
(二)Basic information:根据所给的首字母和中文提示，完成“made in China”的基础知识，注意句子的语态。
1.The tea is g________ by farmers on the sides of mountains.
2.Silk is ________(生产)in Zhejiang Province both in the past and now.
3.Jingdezhen is famous for porcelain. Porcelain is the thin china m________ from a special
________(材料)called clay.
4.Kite flying has been around for over 2，000 years. According to Chinese history，Han Xin
first u________ kites to send messages.
5.Chinese clay art pieces are usually cute children or ________(生气勃勃的)characters from
Chinese fairy tales or historical stories.
(三)Detailed information:根据首字母或中文提示，补全更多的信息，注意每项“made in China”涉及的内容。
China is famous for many ________(产品)－tea，silk，china，kites and other well－known traditional Chinese art ________(形式).
The tea is planted in many different areas in China. Anxi and Hangzhou are w________(广泛地)known for their tea. The tea is drunk all over the world.
Silk has been around for about 5，000 years But before that，people put on ________(叶子)which always easily fell down onto ________(草地).Silk and c________ were first used for making clothes. Later，rich family even used silk to ________(用颜料画).
Most western people believe china is one of the symbols of China.________(它的)best－known brand comes from Jingdezhen. The most common things are dishes and plates.
Weifang，Shandong is the Kite City in China. The ________(当地的)people there are good at making and ________(加工、处理)kites. An i________ kite festival is held in Weifang every year. The ________(参赛者、竞争者)from many different parts of the world take part in it.
During the Spring Festival，paper cuttings are put on windows，doors and walls as symbols of wishes for good luck and a happy new year. A pair of s________ and some red paper are used to ________(完成)everything.
二、篇章训练
随着中国经济的腾飞，越来越多的中国人意识到保护非物质文化遗产的重要性。请你以“Chinese Xuan Paper”为题，写一篇120词左右的英语文章，介绍中国宣纸。
参考词汇:稻草rice straw；书画calligraphy and painting；文人墨客poets and writers；气味smell；青檀qingtan；工序procedure
【写作微技能:make an outline】
Chinese Xuan Paper is produced in Jing county，Anhui.
第一课时Section A(1a～2d)
Ⅰ.1.blouse 2.glass 3.silver 4.fork 5.grass
Ⅱ.6.widely7.leaves8.chopsticks9.produces10.known
Ⅲ.11－15DBDBA
Ⅳ.16.is famous for17.is made from18.Both；and19.is good for
20．As far as
Ⅴ.21－25CEBDA
第二课时Section A(3a～3c)
Ⅰ.1.local 2.handbag 3.everyday 4.mobile 5.France
Ⅱ.6－10BDCBB
Ⅲ.11.no matter12.Even though13.In fact14.all parts of
15．so good at；everyday
Ⅳ.16－20DBADA21－25DCDC A
第三课时Section A(4a～4c)
Ⅰ.1.boss 2.surface 3.gloves 4.Germany 5.cap
Ⅱ.6－10BBBAB
Ⅲ.11.aren't allowed12.What's；made13.isn't watered14.How are 15．is；heard to Ⅳ.16.widely17.discovered18.form19.heat20.farmers21.dried22.process
23.remains24.produce25.Its
第四课时Section B(1a～1e)
Ⅰ.1.international 2.painting 3.to make 4.is；held https://www.wendangku.net/doc/841958645.html,petitors
Ⅱ.6.be painted with7.go on vacation8.at the festival9.different kinds of
10.to find out
Ⅲ.11－15DBCCC
Ⅳ.16.What's that in your hand？17.What is it made of？18.How much is it？
19.Where is it made？20.How do you like the pair of chopsticks?
Ⅴ. 21.way22.hello23.first24.lost25.gave26.While/When
27．past/last28.something29.happy30.trouble
第五课时Section B(2a～2e)
Ⅰhttps://www.wendangku.net/doc/841958645.html,plete 2.Its 3.heat 4.scissors 5.forms
Ⅱ.6.celebration7.lively8.historical9.balloons10.cutting
Ⅲ.11.were covered with12.in trouble13.According to14.turned into15.such as
Ⅳ.16.Actually17.form18.when19.developed20.training21.finished22.invited
23.events24.me25.or
Self Check
Ⅰ.1－5DBAAB6－10AADCD
Ⅱ.A)11.cotton12.fork13.grass14.postman15.France
B)16.chopsticks17.widely18.leaves19.international20.lively
Ⅲ.21.sent out；to ask for22.paper cutting；for over23.Chinese clay art24.is turned into
25.balloon made of
Ⅳ.26－30CBDBA31－35CDCAB
Ⅴ. 36. 25 years old.37. Tim Berners-Lee.
38. We can read news, buy things, make friends and learn anything we're interested in.
39. Yes, it will.40. Our personal information will be made use of.
单元写作小专题&Section B(3a～3b)
一、语言积累
(一)略
(二)1.grown 2.produced 3.made；material https://www.wendangku.net/doc/841958645.html,ed 5.lively
(三)products；forms；widely；leaves；grass；cotton；paint；Its；local；processing；international；competitors；scissors；complete
二、篇章训练
One possible version：
Chinese Xuan Paper
Chinese Xuan Paper has a history over 1，000 years old. It became popular from Tang Dynasty. The best Chinese Xuan Paper is produced in Jing county，Anhui. It is made from bamboo，qingtan，rice straw and so on. It is the reason why people can smell pleasant smell of plants when using it. However，making Xuan Paper is not an easy job. It can't be made by machines but by hands only. Besides，it needs 18 procedures to make a perfect piece of Xuan Paper. So it's very common to take about one year to complete everything. Xuan Paper is the best paper for calligraphy and paintings so it is always loved by poets and writers both in the past and now. What's more，the calligraphy and paintings on Xuan Paper can be kept and remained for many thousand years but never be destroyed when time goes by. In a word，Chinese Xuan Paper is thought to be one of the greatest treasures in China. And Chinese Xuan Paper also shows the love that all Chinese people have for life and beauty.
新人教版九年级下教案
正弦和余弦（一） 一、素质教育目标 （一）知识教学点 使学生知道当直角三角形的锐角固定时，它的对边、邻边与斜边的比值也都固定这一事实． （二）能力训练点 逐步培养学生会观察、比较、分析、概括等逻辑思维能力． （三）德育渗透点 引导学生探索、发现，以培养学生独立思考、勇于创新的精神和良好的学习习惯． 二、教学重点、难点 1．重点：使学生知道当锐角固定时，它的对边、邻边与斜边的比值也是固定的这一事实． 2．难点：学生很难想到对任意锐角，它的对边、邻边与斜边的比值也是固定的事实，关键在于教师引导学生比较、分析，得出结论． 三、教学步骤 （一）明确目标 1．如图6-1，长5米的梯子架在高为3米的墙上，则A、B间距离为多少米？ 2．长5米的梯子以倾斜角∠CAB为30°靠在墙上，则A、B间的距离为多少？ 3．若长5米的梯子以倾斜角40°架在墙上，则A、B间距离为多少？ 4．若长5米的梯子靠在墙上，使A、B间距为2米，则倾斜角∠CAB为多少度？ 前两个问题学生很容易回答．这两个问题的设计主要是引起学生的回忆，并使学生意识到，本章要用到这些知识．但后两个问题的设计却使学生感到疑惑，这对初三年级这些好奇、好胜的学生来说，起到激起学生的学习兴趣的作用．同
时使学生对本章所要学习的内容的特点有一个初步的了解，有些问题单靠勾股定理或含30°角的直角三角形和等腰直角三角形的知识是不能解决的，解决这类问题，关键在于找到一种新方法，求出一条边或一个未知锐角，只要做到这一点，有关直角三角形的其他未知边角就可用学过的知识全部求出来． 通过四个例子引出课题． （二）整体感知 1．请每一位同学拿出自己的三角板，分别测量并计算30°、45°、60°角的对边、邻边与斜边的比值． 学生很快便会回答结果：无论三角尺大小如何，其比值是一个固定的值．程度较好的学生还会想到，以后在这些特殊直角三角形中，只要知道其中一边长，就可求出其他未知边的长． 2．请同学画一个含40°角的直角三角形，并测量、计算40°角的对边、邻边与斜边的比值，学生又高兴地发现，不论三角形大小如何，所求的比值是固定的．大部分学生可能会想到，当锐角取其他固定值时，其对边、邻边与斜边的比值也是固定的吗？ 这样做，在培养学生动手能力的同时，也使学生对本节课要研究的知识有了整体感知，唤起学生的求知欲，大胆地探索新知． （三）重点、难点的学习与目标完成过程 1．通过动手实验，学生会猜想到“无论直角三角形的锐角为何值，它的对边、邻边与斜边的比值总是固定不变的”．但是怎样证明这个命题呢？学生这时的思维很活跃．对于这个问题，部分学生可能能解决它．因此教师此时应让学生展开讨论，独立完成． 2．学生经过研究，也许能解决这个问题．若不能解决，教师可适当引导： 若一组直角三角形有一个锐角相等，可以把其 顶点A1，A2，A3重合在一起，记作A，并使直角边AC1，AC2，AC3……落在同一条直线上，则斜边AB1，AB2，AB3……落在另一条直线上．这样同学们能解决这个问题吗？引导学生独立证明：易知，B1C1∥B2C2∥B3C3……，∴△AB1C1∽△AB2C2∽△AB3C3∽……，∴
人教版英语九年级第七单元 知识点总结
人教版九年级英语第七单元知识点总结 Unit7 Teenagers should be allowed to choose their own clothes. 一．单词 License safety smoke part-time pierce earring flash tiny cry field hug lift badly talk back awful teen regret poem community keep…away from chance make one’s own decision educate manage society get in the way of support enter choice We should allow teenagers to choose their own clothes. Teenagers should be allowed to choose their own clothes. Teenagers shouldn’t be allowed to choose their own clothes. Should teenagers be allowed to choose their own clothes? Why should teenagers be allowed to choose their own clothes? 二．1.driver’s license 驾照=driving license have/do part-time jobs=have/do part-time work做兼职 2.get/have/make sth done 表被动 eg: have/get/make my ears pierced have/get/make my hair cut 3.give sb. a hug = hug sb. 拥抱某人 4.succeed v. 成功（过去式succeeded）success n. 成功（一般为不可数，说到具体的某一次成功时为可数） successful adj. 成功的 5.against 介词，反对，反义词是for 另；对抗 6.manage v.管理，努力完成manager n.经理manage to do 设法做成某事区分 try to do sth 7.important adj.重要的，important=of importance n.重要性 8.regret
人教版九年级英语第五单元
Unit5 单元语法小专题(Grammar Focus) 语法精讲 一般现在时的被动语态 1.主动语态与被动语态 语态是英语句子中表明句子主语与谓语之间动作关系的一个概念，具体分为主动语态与被动语态两种。 主动语态表明的是“句子谓语动作是由主语发出，即主语是谓语动作的执行者”这一主谓关系。而被动语态表明的则是“句子谓语动作不是由主语发出的，主语反而是谓语动作的承受者”这一主谓关系。如: Many people speak English.许多人讲英语。(主动语态，主语“Many people”是谓语动作“speak”的执行者) English is spoken by many people.英语被许多人讲。(被动语态，主语“English”是谓语动作“is spoken”的承受者) 2.一般现在时的被动语态 一般现在时的被动语态其谓语结构为:am/is/are＋及物动词的过去分词 (1)肯定句结构为:主语＋am/is/are＋及物动词的过去分词＋其他。如: Farm machines are made in that factory.农场机械是在那个工厂被制造的。 (2)否定句结构为:主语＋am/is/are＋not＋及物动词的过去分词＋其他。如: Farm machines are not made in that factory.农场机械没有在那个工厂被制造。 (3)一般疑问句结构为:Am/Is/Are＋主语＋及物动词的过去分词＋其他。如: Are farm machines made in that factory？农场机械是在那个工厂被制造的吗？ 注意: ①happen，belong to，have，cost，last，own，stay等一般不用被动语态。 ②taste，sound，prove，feel，look，smell等系动词常用主动形式表示被动意义。除此之外，read，sell， wash，write等动词用来说明主语的性质特征时，也常用主动形式表示被动意义。 语法精练 Ⅰ.用括号内所给单词的适当形式填空。 1.English ________(learn) as a foreign language in most of Chinese schools. 2.The dogs ________(take) good care of by my mother. https://www.wendangku.net/doc/841958645.html,ually，my homework ________(not do) in the afternoon. 4.________ the flowers ________(water) every day? https://www.wendangku.net/doc/841958645.html,puters ________(not sell) well in that shop. 6.________ our school ________(visit) by many people every day? 7.Three languages ________(use) in this country. 8.The workers ________(make) to work 12 hours every day. 9.Such exercises ________ often ________(do) by the students in class. 10.The car ________ always ________(clean) by Mr. Zhang in the morning. Ⅱ.按要求完成下列句子，每空一词。 11.They don't make this kind of watch in Beijing.(改为被动语态) This kind of watch ________ ________ by them in Beijing. 12.The bike is mended by Uncle Li.(对画线部分提问)________ ________ the bike mended by? 13.The trees are watered by them once a week.(改为主动语态) ________ ________ the trees once a week. 14.Does she often look after the old woman？(改为被动语态) ________ the old woman often ________ after by her? 15.Tea is grown in the south of China.(改为一般疑问句) ________ tea ________ in the south of China? Ⅲ.根据汉语意思完成句子，每空一词。 16.英语老师经常使用录音机。Recorders ________ often ________ ________ English teachers.
最新人教版九年级下册化学全册知识点大全(精华版)
最新人教版九年级下册化学全册知识点大全（精华版） 第八单元金属和金属材料 1. 金属的物理性质及用途： （1）物理性质：①大多数的金属呈__银白_色，（但是铜呈_黄_色，金呈_金_色）；②常温下为_固体（但是汞为_液体_体）；③具有良好的_导电_性、_导热_性和_延展_性。 （2）用途： 决定金属用途的因素有：是否经济、是否有害、是否美观、使用是否便利，以及是否污染环境和是否便于废物回收 2. 合金：（1）概念：在金属中加热熔合某些__金属_和_非金属__而形成的具有金属特性的物质。例如：生铁和钢是含__碳量_不同的铁的两种合金，其中生铁的含碳量约为_2%~4.3%，钢的含碳量为_0.03%~2%_。（2）合金的性质与金属相比具有的优点是硬度大、耐腐蚀性好、熔点低。 1、通过观察上面的表格，你对金属的物理性质又有哪些新的认识？ 一般情况下，金属的密度比较大、熔点比较高、硬度比较大 2、为什么菜刀、镰刀、锤子等用铁制而不用铅制？ 答：铅的硬度小,而铁的硬度大 3.为什么灯泡里的灯丝用钨制而不用锡制？如果用锡制的话，可能会出现什么情况？ 钨的熔点高，锡的熔点低；如果用锡，则锡丝易烧断。 4.为什么有的铁制品如水龙头等要镀铬？如果镀金怎么样? 铬硬度大, 耐磨、美观，又防锈；金的价格高、硬度小如果镀金则会增加成本且不耐用。 5、银的导电性比铜好，为什么电线一般用铜制而不用银制？ 银的价格比铜高许多 6、考虑物质的用途时，首先要考虑物质的__性质___，还需要考虑那些因素？ 是否美观、使用是否便利、资源、废料是否易于回收、价格、对环境的影响 7地壳中含量最高的金属元素──铝 8人体中含量最高的金属元素──钙 9目前世界年产量最高的金属──铁 10导电、导热性最好的金属──银 考点二、金属的化学性质 1. 金属的化学性质（请完成化学方程式）
新人教版九年级上册英语第五单元必考知识点归纳
新人教版九年级上册英语第五单元必考 知识点归纳 新人教版九年级上册英语第五单元必考知识点归纳 Unit5 What aade of? 【重点短语】 1. be made of 由……制造 2. be made in 在……制造 3. enval环境保护 4. be famous for 以……而著名 5. be produced in 在……生产 6. be known for 以……闻名 7. as far as I know 据我所知by hand 手工采摘 9. send for 发送 10. avoid doing sth 避免做某事 11. everyday things 日用品 【考点详解】 1. made of 由……制（构）成，后接构成某物质的原料。例：Tade of silk.这件裙子是用丝绸制成的。 be made of/from/up of的区别 （1）be made of 表示制成成品后，仍可看出原材料是什么，保留原材料的质和形状，制作过程仅发生物理变化。例：Tade of paper．风筝是用纸做的。
（2）be made from 表示制成的东西完全失去了原材料的外形或特征，或原材料在制作过程中发生化学变化，在成品中已无法辨认。 例：The paade from wood．纸是木头做的。 Buadlk. 黄油是从牛奶中提炼出来的。 （3）be made up of 用……构成或组成的，指人、物皆可，指结构成分。 例：Our class is made up of six groups. 我们班是由六个小组组成的。 2. Iat many people all over the world da. 好像全世界的许多人都在喝中国茶。 句型“Iat…”意为“看起来好像/似乎……”，其中seem是连系动词，意为“似乎；好像”，句型中的it是形式主语，不能用其他代词来替代。 例：Iat he was laain. 看来他没赶上火车。 seem的几种常见结构： （1）do sth此句型可与“Iat…”转换。 例：Td the waa. =Iad the waa. 他们似乎找到了去电影院的路了。 （2）seem+形容词 例：atu(to be) all right. 我的体温看上去正常了。（3）seem+名词
新人教版英语九年级下册教案全册
九年级英语下·RJ Unit 11 Sad movies make me cry. Language Goal 【语言目标】 Talk about how things affect you Knowledge Goals 【知识目标】 Key Words drive，friendship，king，power，banker，pale，queen，examine，nor，palace，wealth，grey，lemon，uncomfortable，weight，shoulder，goal，coach，kick，courage，pull，nod，agreement，disappoint Key Phrases would rather，drive sb.crazy/mad，the more…the more…，be friends with sb.，leave out，call in，neither…nor…，to start with，let…down，kick sb.off，be hard on sb.，rather than，pull together Key Sentences 1.The loud music makes me nervous. 2．Sad movies don't make John cry. 3．Money and fame don't always make people happy. 4．She said that the sad movie made her feel like crying. Key Grammar Learn to use “make＋sb.＋infinitive without to； make＋sb.＋adj.” Ability Goals 【能力目标】1.Develop listening，speaking，reading and writing skills by using the target languages. 2．Learn to talk about how things affect you by using “make sb.do sth.” and “make sb. adj.”. Moral Goals With the help of this unit's study，students should
最新人教版初中九年级下册化学教案全集
最新人教版初中九年级下册化学教案全集 人教版九年级化学下册教学计划 一、指导思想： 本学期九年级化学教学将继续在“课改”新理念和新的《课程标准》的指导下，以课程改革为重点，以课堂教学为抓手，立足课堂教学这一主阵地，规范教学过程，坚持全体学生的全面发展同时，关注后进生的成长，完成九年级化学下册教学任务，通过师生的共同努力，使学生具备一定的化学知识与技能并为升入高一级学校的学习打下坚实的基础。 二、学生分析 九年级共两个教学班，其中九（3）班班学生学习习惯较好，成能力强些，而九（4）班大多是没有养成良好的学习兴趣，自觉性比较差，总体情况分析：学生分化十分严重，尖子生太少，中等生所占比例较大，还有一部分学生对学习热情不高，不求上进。而其中的优等生大多对学习热情高，但对问题的分析能力、计算能力、实验操作能力存在严重的不足，尤其是所涉及和知识拓展和知识的综合能力等方面不够好，学生反应能力弱。总体来看，两极分化还是较严重，许多学生对此感到无从下手，不会进行知识的梳理，导致学生掉队，同时学生面临毕业和升学的双重压力等，致使许多学生产生了厌学心理。这就要求我们在教学过程还注重保护学生学习和积极性，并因材施教。 三、教材分析： 人教版九年级化学（下册）的内容共五个单元，分别是：第八单元《金属和金属材料》介绍了金属和金属材料的有关内容；金属的化学性质及用途和资源的利用和保护。重点是铁、铝、铜和合金的重要性质、用途；金属活动性顺序；有关含杂质物质在方程式中计算的问题。 第九单元《溶液》有三个课题，先从定性的角度初步认识溶液，然后从定量的角度研究物质的溶解性，接着再从定量的角度认识溶液组成的表示方法。重点是溶液、溶质、溶剂、饱和溶液和溶解度的概念；以及溶质的质量分数的简单计算。 第十单元《酸和碱》的第一部分从生活和实验中常见的酸和碱出发，介绍了几种常见酸和碱的性质及用途，并说明酸和碱各有相似性质的原因。第二部分介绍了酸和碱之间的反应（中和反应）及中和反应在实际中的应用，溶液的酸碱度等。 第十一单元《盐化肥》介绍了盐和化肥，并对酸、碱、盐之间的复分解反应及其发生的条件、碳酸根离子的检验、分离提纯物质及化合物的分类等内容进行总结。重点是酸碱盐的反应规律和条件及过滤、蒸发等分离提纯物质的运用。
(九年级上册)单元说明第五单元
（九年级上册）单元说明第五单元 从“全豹”看“一斑”，由“一斑”引向“全豹”──浅谈古代长篇小说片段教学张必锟中学语文课本里选入古代长篇小说片段，已有半个多世纪的历史。这类课文体制一般不大，而写人物往往限于表现其性格特征的某一侧面，故事几乎全是围绕着一件具体的事而逐步展开，有完整而生动的情节，从整体看都具有相对的独立性。正因为有这些特点，再加上受课时的限制，教读这类课文除了要简略介绍原小说的梗概及交代故事来由而外，跟教读短篇小说并无显著的区别，简言之，即“就文论文”，课堂教学内容不超出文本的范围。这种情况相当普遍。这样的教学方式，毋庸置疑，是完全合乎逻辑的，也能使学生受益。但是，用长远的观点看问题，这样的教学方式却又并非尽善尽美。因为这类课文正是所谓“全豹之一斑”，有明显的示例作用，学习的主要目的在于激发学生阅读小说原著的兴趣，以便此后通过自读去感知这些作品的思想价值和艺术魅力，养成对我国历史文化的热爱；如果仅仅停留在“就文论文”上，学生的收获就很有限了。自然，读原著是一个长期目标，很难一蹴而就，但我们决不应放弃这个方面的努力；更何况这个“一斑”跟“全豹”之间本来就存在着这样那样的内在联系，只要善于发现这种联系，即便不能使学生达到“窥一斑而知全豹”的境地，总也可以稍稍扩大他们的眼界，多少懂得一点阅读全书的门径。由此看来，教读这类课文，大致可分两步走：第一步，学好课文，即“就文论文”；第二步，在前者基础上向前延伸，让学生独立自主地探讨几个跟小说全局有关的问题，即从“一斑”引向“全豹”。下面
我们将着重讨论怎样实现从“一斑”到“全豹”这一步，因为只有实现了这一步，才能使学生受到古代长篇小说阅读的起步训练。一俗语云：“条条道路通罗马。”实现从“一斑”到“全豹”，也有多种方式、多种办法，不受任何限制，关键在于教师必须先从“全豹”来审视“一斑”，具体地说，就是在备课过程中要善于从小说的全局（思想内容、情节结构、艺术特点等）来审视课文中所描述的人物和事件，深究其意义。下面试以本单元的课文为例，说说审视中应当注意的几件事：注意人物活动的大背景。这指的是，不要孤立地看待人物在此时此地的活动，而要把这样的活动跟此人在他时他地的活动联系起来进行分析。例如杨修在曹刘汉中之战的末期从夜间口号“鸡肋”看出曹操有退兵意因而自作归计，这显然是一种干犯军纪的行为，是他恃才放旷的性格所使然，由此而招致杀身之祸毫不足怪。这样看来，他的被杀实在是个性格悲剧。可是，如再联系他曾参与魏王继承人斗争的事实来看，情形就不同了，因为这样的斗争已将他置身于险恶的政治环境之中，特别是在曹植已经失势的条件下，他早晚难逃一死（曹植的另外两个谋士丁仪、丁广兄弟在杨修之后被杀可为旁证）。由此看来，杨修显然是魏王室内部斗争中的政治牺牲品。这正是杨修活动的大背景，认识这个大背景，才能看出杨修被杀这件事的实质。在三国时期，这样的斗争不仅在曹魏政权中存在，在蜀汉和东吴也同样存在，认识这一点，对学生此后阅读《三国演义》自有裨益。注意人物性格的历史。这是说，不能只看到人物的现在，也要看到他（她）的过去和今后。只看现在，这是用静止的眼光观察人物，不会看得深远；把过去、现在、今后全看到了，才会有发展的眼光，能有所发现。例如香菱这个人，如果只看她现在
人教版九年级英语第七单元知识点归纳 (1)
Unit 7 Teenagers should be allowed to choose their own clothes 一、必记单词 ①名词：________ 证，证件________安全，安全性________田野，场地________诗，韵文________社区，社团________机会，可能性________社会________选择，挑选 ②动词：________教育，训导_______完成（困难的事）；应付（困难局面）_______进来，进去 ③动词&名词：________吸烟，冒烟；烟________哭，叫喊________拥抱，搂抱________举起，太高；电梯________感到遗憾；懊悔，后悔________支持 ④形容词：________极小的，微小的________很坏的，讨厌的 ⑤副词：________严重地；差；非常； 二、短语 ________________ 做兼职工作________________扎耳洞 ________________回嘴，顶嘴________________避免接近，远离 ________________自己做决定________________挡...的路；妨碍 ________________不反对________________认真对待 三、小语法讲解： 1.No way！不行！ No way意为“不行”，这是英语口语中一个直接拒绝对方的表达用语，强调不能按照他人的要求去做某事或不允许别人做某事。 Can I borrow your bike？ No way！ 2.I don’t think sixteen-year-olds should be allowed ①宾语从句跟在think，believe，suppose，expect等动词后，当主句是一般现在时，且主句的主语是第一人称（I,We）时，变否定句时，要否定主句，而不是从句，我们称之为“否定前移”；变反意疑问句时，附加问句要与从句一致。 I think you are right I don’t think you are right I don’t think he is clever，is he？ 注意：如果主句的主语是第二，第三人称，变否定句时，要在从句否定；变反意疑问句时，附加句要与主句一致。 They think you are right They think you are not right They think you are right，don’t they？ 【拓展】think（认为）、suppose（猜想）、believe（相信）、expect（期待） 练习：I don’t think she will agree with us，_______? A.will she B.won’t she C.don’t you D.do you ②sixteen-year-old是形容词，意为“十六岁的”，在形容词后加s，表示某一类人的意思，这样的
九年级英语上册第五单元重要知识点总结
九年级英语上册第五单元重要知识点总 结 九年级英语上册第五单元重要知识点总结 Unit5 What aade of? 【重点短语】 1. be made of 由……制造 2. be made in 在……制造 3. enval环境保护 4. be famous for 以……而著名 5. be produced in 在……生产 6. be known for 以……闻名 7. as far as I know 据我所知 by hand 手工采摘 9. send for 发送 10. avoid doing sth 避免做某事 11. everyday things 日用品 【考点详解】 1. made of 由……制(构)成，后接构成某物质的原料。 例：Tade of silk.这件裙子是用丝绸制成的。 be made of/from/up of的区别 (1)be made of 表示制成成品后，仍可看出原材料是
什么，保留原材料的质和形状，制作过程仅发生物理变化。 例：Tade of paper.风筝是用纸做的。 (2)be made from 表示制成的东西完全失去了原材料的外形或特征，或原材料在制作过程中发生化学变化，在成品中已无法辨认。 例：The paade from wood.纸是木头做的。 Buadlk. 黄油是从牛奶中提炼出来的。 (3)be made up of 用……构成或组成的，指人、物皆可，指结构成分。例：Our class is made up of six groups. 我们班是由六个小组组成的。 2. Iat many people all over the world da. 好像全世界的许多人都在喝中国茶。 句型“Iat…”意为“看起来好像/似乎……”，其中seem是连系动词，意为“似乎;好像”，句型中的it 是形式主语，不能用其他代词来替代。 例：Iat he was laain. 看来他没赶上火车。 seem的几种常见结构： (1)do sth此句型可与“Iat…”转换。 例：Td the waa. =Iad the waa. 他们似乎找到了去电影院的路了。 (2)seem+形容词
新人教版九年级上册英语第五单元必考知识点归纳
新人教版九年级上册英语第五单元必考知 识点归纳 Unit5hataretheshirtsadeof? 【重点短语】 beadeof由……制造 beadein在……制造 environentalprotection环境保护 befaousfor以……而著名 beproducedin在……生产 benonfor以……闻名 asfarasIno据我所知 picbyhand手工采摘 sendfor发送 0.avoiddoingsth避免做某事 1.everydaythings日用品 【考点详解】 adeof由……制成，后接构成某物质的原料。 例：Thissirtisadeofsil.这件裙子是用丝绸制成的。 beadeof/fro/upof的区别 beadeof表示制成成品后，仍可看出原材料是什么，保留原材料的质和形状，制作过程仅发生物理变化。
例：Theiteisadeofpaper．风筝是用纸做的。 beadefro表示制成的东西完全失去了原材料的外形或 特征，或原材料在制作过程中发生化学变化，在成品中已无 法辨认。 例：Thepaperisadefroood．纸是木头做的。 Butterisadefroil.黄油是从牛奶中提炼出来的。 beadeupof用……构成或组成的，指人、物皆可，指结 构成分。 例：ourclassisadeupofsixgroups.我们班是由六个小组组成的。 Itseesthatanypeopleallovertheorlddrinchinesetea. 好像全世界的许多人都在喝中国茶。 句型“Itseesthat…”意为“看起来好像/似乎……”，其中see是连系动词，意为“似乎；好像”，句型中的it 是形式主语，不能用其他代词来替代。 例：Itseesthatheaslateforthetrain.看来他没赶上火车。 see的几种常见结构： seetodosth此句型可与“Itseesthat…”转换。 例：Theyseetofindtheaytothecinea.=Itseesthattheyfindthe aytothecinea.
最新人教版数学九年级下册全册教案
人教版数学九年级下册教学计划 教师_______日期_______ 本学期是九年义务教育的终结期也是初中学习的关键时期，教学任务非常艰巨。因此，要完成教学任务，必须紧扣教学大纲，结合教学内容和学生实际情况，把握好重点、难点，努力把本学期的任务圆满完成。九年级毕业班总复习的教学时间紧，任务重，要求高，如何提高数学总复习的质量和效益，是每位毕业班数学教师必须要解决的问题。下面特制定以下教学学习及复习计划。 一、学情分析进入初三以来，通过多次集体备课讨论，我们初三数学组 感到压力很大。从、考成绩来看，和兄弟学校差不多，高分可能偏多，但其中应有不少水分，不能光看数据；二是随着知识的深入，临近毕业，学生之间的学习差异越来越大，有些学生坚持不住，成绩出现很大的滑坡，这些都为我们的正常教学带来很不利的影响。上学期虽然涌现了一批学习刻苦，成绩优异的优秀学生，但后进学生因数学成绩十分低下，厌学情绪非常严重，基本放弃对数学的学习了。部分中等学生对前面所学的一些基础知识记忆不清，掌握不牢等，这都是这学期我们急需解决的问题。 二、教学内容分析 本期教学进程主要分为新课教学和总复习教学两个阶段 新课教学共分两章。 第二十八章《锐角三角函数》分为两节，第一节主要学习正弦、 余弦和正切等锐角三角函数的概念，第二节主要研究直角三角形中的 边角关系和解直角三角形的内容。第二十九章《投影与视图》分为三 节，主要内容包括：投影的基础知识；视图、三视图等概念，课题学 习：制作立体模型。 总复习是本期教学的一个重点。通过系统的总复习使学生全面熟悉 初中数学教学内容，在牢固掌握基础知识的前提下，能娴熟的运用所 学知识分析问题和解决问题。
部编人教版九年级语文上册第五单元知识点总结
部编人教版九年级语文上册第五单元知识点总结 第五单元知识要点梳理 一、课文内容梳理 1．《中国人失掉自信力了吗》一文，从两个方面批驳对方观点。一方面，揭露“一部分人”，即国民党当局，“自信其实是早就失掉了的”，“只能说中国人曾经有过‘他信力’”，“现在是在发展着‘自欺力’”。另一方面，用事实证明“我们有并不失掉自信力的中国人在”。最后得出结论：“自信力的有无，状元宰相的文章是不足为据的，要自己去看地底下。” 2.《怀疑与学问》一文，围绕“怀疑”与“学问”的关系论述了“治学必须要有怀疑精神”这一论点。作者根据自己的经验启发读者在学习中要有怀疑精神，认为只有善于提出疑问，积极思索，认真辨别，才能获得真才实学。 3．《谈创造性思维》一文，由一个包含四个图形的问题引出“事物的正确答案不止一个”的观点。然后层层推进，引申出“不满足于一个答案，不放弃探求”需要创造性思维，引发创造性思维必须具备的要素和区分一个人是否拥有创造力的根据的相关论述。最后得出结论：任何人都可能成为富有创造力的人。 4．《创造宣言》一文中，作者运用典型事例和名言警句对五种“不能创造”的错误观点进行了有力的批驳，提出了“处处是创造之地，天天是创造之时，人人是创造之人”的观点，最后发出了“只要有一滴汗，一滴血，一滴热情，都应该创造，都能够创造”的创造宣言。
二、字音字形 第17课《中国人失掉自信力了吗》 玄虚( xuán xū ) 渺茫( miǎo máng ) 麻醉( má zuì ) 笼罩( lǒng zhào ) 家谱( jiā pǔ ) 脊梁( jǐ liáng ) 摧残( cuī cán ) 倘若( tǎng ru ò )污蔑( wū miè ) 搽chá前仆后继( qián pū hòu jì )诓骗(kuāng piàn) 自欺欺人( z ì qī qī rén ) 埋头苦干( mái tóu kǔ gàn ) 舍身求法( shě shēn qiú fǎ ) 不足为据( bù zú wéi jù ) 怀古伤今( huái gǔ shāng jīn )省悟( x ǐng wù脂粉( zhī fěn ) 第18课《怀疑与学问》 顾颉刚( gù xié gāng ) 程颐( chéng yí ) 张载( zài ) 譬如( p ì rú ) 凶险( xiōng xiǎn ) 视察( shì chá ) 轻信( qīng xìn )腐草为萤( fǔ cǎo wéi yíng ) 不攻自破( bù gōng zì pò )虚妄( xū wàng ) 盲从( máng cóng ) 步骤(bù zhòu) 折扣( zhé kòu ) 懒惰( lǎn duò ) 流俗( liú sú ) 塾师(shú sh ī) 墨守( mò shǒu ) 停滞( tíng zhì ) 大儒( dà rú ) 第19课《谈创造性思维》
新人教版九年级第七单元测试题附答案
新人教版九年级第七单元测试题附答案 Unit 7Teenagers should be allowed to choose their own clothes. (时间：100分钟，满分：100分) Ⅰ.单项选择。(每小题1分，共15分) ( )1.—I drank some wine just now. Could you drive me home，Jack? —Oh，sorry. I don't have ________ driver's license. A. a B. an C. the D./ ( )2.Only then ________ have a chance to do it. A. I will B. will I C. I can D. I should ( )3.The people who are more confident have more ________ to make themselves successful. A. education B. chances C. pride D. excuses ( )4.—How was your vacation there? —Great! Although the weather was ________，I had a good time there. A. fine B. awful C. sunny D. warm ( )5.I can't help smiling when I ________ my childhood. A. think back to B. fall over C. take care of D. give up ( )6.Miss Chen has a ________ daughter. She is very lovely. A. six-years-old B. six-year-old C. six year old D. six years old ( )7.—What are you going to do this afternoon，Andy? —My hair is too long. I want to get my hair ________. A. cut B. to cut C. cuts D. cutting ( )8.—It's difficult to get to the other side of the river. —I think a bridge ________ over the river. A. should be built B. should build C. will build D. has built ( )9.Fewer and fewer stars ________ at night because of air pollution. A. see B. can see C. have seen D. can be seen ( )10.We won't allow ________ in the cinema. But you are allowed ________ in the rest room. A. smoking；smoking B. smoke；to smoke C. smoking；to smoke D. smoke；smoking ( )11.Ann is so careful that she always goes over her exercises to ________ there are no mistakes. A. look for B. make sure C. find out D. pick up ( )12.The girl regret ________ back，not ________ Mom now. A. talking；listen to B. talk；listening to C. talking；listening to D. talk；listen to ( )13.—Why are you so upset? — I ________.My teacher was very angry with me. A. took the math test B. passed the math test C. failed the math test D. worried about the math test ( )14.—Are your parents strict ________ you，Sam? —Yes. For example，they are serious ________ my grades.
最新人教版九年级数学下册教案全册
最新人教版九年级数学下册教案全册 正弦和余弦（一） 一、素质教育目标 （一）知识教学点 使学生知道当直角三角形的锐角固定时，它的对边、邻边与斜边的比值也都固定这一事实． （二）能力训练点 逐步培养学生会观察、比较、分析、概括等逻辑思维能力． （三）德育渗透点 引导学生探索、发现，以培养学生独立思考、勇于创新的精神和良好的学习习惯． 二、教学重点、难点 1．重点：使学生知道当锐角固定时，它的对边、邻边与斜边的比值也是固定的这一事实． 2．难点：学生很难想到对任意锐角，它的对边、邻边与斜边的比值也是固定的事实，关键在于教师引导学生比较、分析，得出结论． 三、教学步骤 （一）明确目标 1．如图6-1，长5米的梯子架在高为3米的墙上，则A、B间距离为多少米？ 2．长5米的梯子以倾斜角∠CAB为30°靠在墙上，则A、B间的距离为多少？ 3．若长5米的梯子以倾斜角40°架在墙上，则A、B间距离为多少？
4．若长5米的梯子靠在墙上，使A、B间距为2米，则倾斜角∠CAB为多少度？ 前两个问题学生很容易回答．这两个问题的设计主要是引起学生的回忆，并使学生意识到，本章要用到这些知识．但后两个问题的设计却使学生感到疑惑，这对初三年级这些好奇、好胜的学生来说，起到激起学生的学习兴趣的作用．同时使学生对本章所要学习的内容的特点有一个初步的了解，有些问题单靠勾股定理或含30°角的直角三角形和等腰直角三角形的知识是不能解决的，解决这类问题，关键在于找到一种新方法，求出一条边或一个未知锐角，只要做到这一点，有关直角三角形的其他未知边角就可用学过的知识全部求出来． 通过四个例子引出课题． （二）整体感知 1．请每一位同学拿出自己的三角板，分别测量并计算30°、45°、60°角的对边、邻边与斜边的比值． 学生很快便会回答结果：无论三角尺大小如何，其比值是一个固定的值．程度较好的学生还会想到，以后在这些特殊直角三角形中，只要知道其中一边长，就可求出其他未知边的长． 2．请同学画一个含40°角的直角三角形，并测量、计算40°角的对边、邻边与斜边的比值，学生又高兴地发现，不论三角形大小如何，所求的比值是固定的．大部分学生可能会想到，当锐角取其他固定值时，其对边、邻边与斜边的比值也是固定的吗？ 这样做，在培养学生动手能力的同时，也使学生对本节课要研究的知识有了整体感知，唤起学生的求知欲，大胆地探索新知． （三）重点、难点的学习与目标完成过程 1．通过动手实验，学生会猜想到“无论直角三角形的锐角为何值，它的对边、邻边与斜边的比值总是固定不变的”．但是怎样证明这个命题呢？学生这时的思维很活跃．对于这个问题，部分学生可能能解决它．因此教师此时应让学生展开讨论，独立完成． 2．学生经过研究，也许能解决这个问题．若不能解决，教师可适当引导：
人教版九年级上册语文第五单元
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