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8A_Unit_2课时练习

8A_Unit_2课时练习
8A_Unit_2课时练习

灌南华侨双语学校初二英语预习案

初二()班学号姓名

课题:8A Unit 2 Comic strip & welcome to the unit 【预习导航】

【预习检测】

一、选词填空。

1.We live on the __________of the building.

2.We go up and come down by_______.

3._______is a kind of football.

4.Please throw the rubbish into the _______.

5. He has _______friends than I.

二、翻译下列短语。

1、在第一层

2、乘电梯

3、一所中学

4、去看电影

5、数学学得好 6 、美式足球

7、在秋天8、喜欢踢足球

【当堂检测】

一、选择填空

( )1.He thinks that a dictionary is useful friend.

A. a

B. an

C. the

D. /

( )2.There sheep in the field. Let's go and have a look.

A. is little

B. are little

C. are few

D. is few ( )3.–I usually go there by train.

-Why not by plane?

A. to try going

B. trying to go

C. to try and go

D. try to go ( )4. most students, he never comes to school late.

A. Like

B. As

C. For

D. To

( ) 5.-What's your best friend like?

--

A. He is fine

B. He is a doctor

C. He likes watching TV

D.He is helpful and generous ( )6.-Can you tell me how to keep healthy?

-You should eat fast food, vegetables and take enough exercise.

A. fewer; more

B. fewer; less

C. less; fewer

D. less; more ( )7.My father is than my mother.

A. two years old

B. two years older

C. old two years

D. two year old

灌南华侨双语学校初二英语巩固作业

初二()班学号姓名

课题:Unit 2comic strip and Welcome to the unit 书写评价:成绩:

一、根据所给的图片,写出在英式英语和美式英语中对应的词语,并写出相应的汉语

二、根据句意及中文提示完成单词

1. We all think that school (生活)is very interesting to us.

2. Beckham is a famous (英国的)football player.

3.Where did you go for your (假期)?

4.We all hope that there will be (更少的)advertisements on TV.

5. Do you think dogs are (精明的)than monkeys?

三、句型转换

1. Why don't you play with us? (改为同义句) .

(1) play with us?

(2) playing with us?

2. Our school is like a beautiful garden. (对画线部分提问)

your school like?

3. Eddie isn't as smart as Hobo. (改为同义句)

Hobo Eddie.

4. I often walk to school because it's near my house. (改为同义句)

I often to school because it's near my house.

5. It takes me about one hour to do my homework every day. (改为同义句)

I about one hour my homework every day.

四、翻译下列句子

1. 学校像什么样子?它像看电视。

2. 有比较少的电视广告。

3. 他总能正确的回答问题。

灌南华侨双语学校初二英语预习案

初二()班学号姓名

课题:8A Unit2 Reading(1)

【预习导航】

【预习检测】

一、翻译下列短语。

1、我的最喜欢的课程

2、家政课

3、学会怎样烧饭

4、煮有益于健康的味道好的饭

5、在阅读周期间

6、一所混合性的学校

7、在上个学期快结束时8、上驾驶课

9、练习打垒球10、去购物

【当堂检测】

一、根据句意及中文提示完成单词

1. English is one of my favourite (科目).

2.I could look after (我自己)at the age of six.

3.My father is good at cooking (可口的)food.

4. I go to the school library (两次)a week

5. I often go to the Buddy Club and chat with my (亲密的)friends.

6. Boys in our class like reading (文章)about ball games.

7. Many people (钦佩)Yao Ming very much because he can play basketball very well.

8. The spacemen of China are becoming the (偶像)of teenagers.

9. I spend about half an hour (练习)reading English in the moming.

10. American people like playing (垒球)best in the world.

二、用所给单词的适当形式填空

1. Does your school have a (read) Week every term'?

2- We often have a great time (play) basketball on Sundays.

3. My grandma can cook (health) and (taste) food for us.

4. Driving a car to school takes (little) time than taking a bus.

5. Don't worry about my English. I know how to teach (I) now.

6. It's very important for us to keep (health).

7. Some boys also like learning how (cook) and sew.

8. Before having lessons, you can't be a .(drive)

9. He spends a lot of time (practice) (play) the piano.

10. Tomorrow l will meet my teacher (talk) about my future plans.

三、单项选择

( )1. These books are so that I can't find my English book.

A. mix

B.mixed

C.mixes

D.mixing

( )2. He is a naughty boy and often us trouble.

A. takes

B.brings

C. gets

D.carries

( )3. --Mike,I can't stop playing computer games.

--For your health, my dear friend, I'm afraid you____.

A. have to

B.may

C.must.

D. needn't

灌南华侨双语学校初二英语巩固作业

初二()班学号姓名

课题:Unit 2 Reading(1)书写评价:成绩:

一、选择题

( )1.Watching TV for a long time bad for your eyes.

A.are B.do C.does D.is

( )2.I'm interested in animals, so I lots of time playing with my dog.

A. pay

B. take

C. spend

D. cost

( )3.-Bob speaks Chinese quite well.

-Yes, so he does. He practices Chinese every day.

A. speak

B. speaks

C. spoke

D. speaking

( )4. Please buy me a pen on your way home.

A./B.to C.at D.in

( )5. The pretty girl is good at singing and dancing .

A. either

B. also

C. as well

D. as well as

( )6. They look so .We can't believe they are .

A. young; seniors

B. old; junior

C. oldest; seniors

D. younger; junior

( )7. Why____ have some more chicken, little Kitty?

A. don't

B. aren't

C. not

D. not to

二、句型转换

1.I'm new here and I don't know how I could get to the station.(改为同义句)

I'm new here and I don't know the station.

2.They had a great time talking to each other during lunchtime.(对画线部分提问)

they a great time talking to each other?

3.Kitty has to stay at home to look after her little brother.(改为一般疑问句)

Kitty stay at home to look after her little brother?

4.Mrs Tang spends 30 minutes walking to work every morning.(改为同义句)

It Mrs Tang 30 minutes to work every moming.

5.My father often helps me do my homework.(改为同义句)

My father often me my homework.

6.Students in 12th grade are called seniors.(对画线部分提问)

students in 12th grade ?

三、翻译下列句子。

1. 男生女生一起上课。

2. 我最爱的学科是家政课。

3. 我现在知道如何做可口而又健康的饭菜。

Now , I know

4. 在我们班,我读最多的书。

5. 在每节课快结束时,我们跟我们的同学谈论我们的书。

of each class, we our classmates .

灌南华侨双语学校初二英语预习案

初二()班学号姓名

课题:8A Unit2 Reading(2)

【预习导航】

【预习检测】

1、

2、Students in 12th grade are called ______.

3 They often go to shopping _____ after school.

4 She is reading an___________on a boy from England.

5 What’s the meaning of the word ―hero‖? It means someone you ______very much.

二、翻译下列短语。

1、开车送我上学

2、乘汽车

3、花很多时间打垒球

4、去―好朋友俱乐部‖

5、告诉我更多的有关你学校的情况

6、非常羡慕他们

7、一个星期两次

8、去购物中心9、看了一篇文章

10、知道怎样烧出美味的食物

【当堂检测】

一、根据句意及首字母提示补全单词

1. My f subject is English. I like it very much.

2. In a mixed school, boys and girls have lessons t .

3. Please help yourselves to some chicken. It t delicious.

4. Many people are having d lessons.

5. If you admire somebody very much, that means she/he is your h .

二、选择填空

( )1. Why come and play basketball with us?

A. not you

B. don’t

C. not to

D. not

( )2.-- does Mary usually go to the bubby club?

--Once a week.

A. How often

B. How long

C. How far

D.How much

( )3. My cousin is in in Shanghai No.11 Middle School.

A.3th Grade

B.3 Grade

C. Grade 3

D. Grade 3rd

( )4. People in the UK say ―lift‖ while people in the USA say ―‖.

A. hall

B.elevator

C. recess

D. soccer

( )5. If it next Sunday, you still the Great Wall?

A.will rain; do; visit

B. will snow; will; visit

C. rains; do; visit

D.rains; wil; visit ( )6. He always looks . Now he’s looking at his new drawing.

A. happy; happily

B. happy; happy

C.happily; happily

D. happily;happy

灌南华侨双语学校初二英语巩固作业

初二()班学号姓名

课题:Unit 2 Reading(2)书写评价:成绩:

一、用所给动词的适当形式填空

1. Do you mind my一(close) the window?

2. It's not difficult to learn how____ (drive)a car.

3. Lily and Lucy,____ (not chat) in the class.

4. My cousin practises__—(draw) pictures every evening.

5. We had a good time____ (visit) the World Park.

1.I like English, and I like Maths .

2. Timmy is my friend. Cindy is my friend, .

3.What an interesting book!I want to buy one.

Would you please something about your family life?

6. If you keep practicing English after class, you'll get high m

7. Sarah a lot with her friends last night.

8. What did he you to do just now?

She will

2. 1 would like to have Home Economics next term because l want to learn

for my family.

3. I'd like when I am free. I can get useful information from them.

4. David likes Computer Studies. He often working on his computer.

5. My English is poor, but Linda is good at it. She often my English.

6. During the Reading Week, the teacher asks us some books and magazines from home.

四、句型转换

1. I like Geography best of all the subjects.(同义句)

Geography is .

2. The little boy knows how he can make people happy. (同义句)

The little boy knows how people happy.

3. I will go to school in my brother's car every day. (同义句)

My brother will every day.

4. We enjoyed ourselves on Children's Day.

. We on Children's Day.

灌南华侨双语学校初二英语预习案

初二()班学号姓名

课题:8A Unit2 V ocabulary

【预习导航】

【预习检测】

一、根据首字母和释义写出单词

1. not important u_________

2. not of any use u________

3. the study of events(事件) in the past H__________

4. not popular u_________

5 the study of the countries of the world and the seas ,rivers.. G________

二、根据句意和首字母提示写单词,完成下列各句。

1.People in different countries speak different l________.

2.We had a great time p_______ computer games together.

3.I often feel b______ at school because some of the classes are too simple for me.

4.The cook can make many t______dishes.

5.She likes p______ songs.

【当堂检测】

一、用所给单词的适当形式填空

1. This old computer is (use). You'd better buy a new one.

2. It's wrong to think Maths (important).

3. Jim did his homework so (careful) that he made many mistakes.

4. Many girls think that Chinese and English are __(interest) ffian Maths and Physics.

二、选择填空

( ) What’s your best friend like?

A. He is fine. Thank you.

B. He is a doctor.

C. He likes watching TV.

D. He is helpful and generous.

( ) 2.His uncle caught a bad cold. Now he is still .

A. in hospital

B. in the hospital

C. at hospital

D.at the hospital ( ) 3.There an exciting softball match on TV this evening.

A. will have

B. are going to have

C.are going to be

D. is going to be

( ) 4.I’m sure you drive a car next month.

A. will can

B.will be able to

C. are able to

D. could

( ) 5.There are many tall buildings on of the busy street.

A. both side

B. all sides

C. each side

D. every side

( ) 6..If you live near the shopping mall, you go far to buy things.

A. have to

B. haven’t to

C.don’t have to

D. needn’t to

灌南华侨双语学校初二英语巩固作业

初二()班学号姓名

课题:Unit 2 V ocabulary 书写评价:成绩:

一、句型转换

1.Mrs Green spends two hours on housework every day.(同义句)It Mrs Green

housework every day.

2.What’s the meaning of the word ―eraser‖?(同义句)

What the word ―eraser‖?

3.I’d like to learn more about your school life, too.(同义句)

I want to learn more about your school life .

4.Do it like this!(否定句)

it like this!

5.Sandy has to stay at home to look after her brother.(一般疑问句)

Sandy stay at home to look after her brother. 6.The nearest supermarket is 8 kilometres from here.(划线提问)

is the nearest supermarket from here?

6.What other things can you see in the picture?(同义句)

_____ _______ can you see in the picture

二、翻译句子

1. 她对做饭和缝纫感兴趣。

She and .

2. 它比乘公交车用时间少。

It takes than .

3. 我们总是开心的交谈。

We always to each other.

5.我们甚至可以从家里带来书和杂志。

We books and home.

6.放学后,我每周两次大垒球。

, I week.

灌南华侨双语学校初二英语预习案

初二()班学号姓名

课题:Unit 2 Grammar (1)

一、选词填空。

1、

2 May I look at your _______?

3 My pen is like your pen. Our pens are_______.

4. I have _______friends here than you.

5. Kitty has the ______money of the three.

二、根据所给词组的正确形式完成下列各句。

2.Can’t you see this pair of trousers _________ yours?

3.Nancy’s father _____ her _____school yesterday.

4.She is a good student. His sister is a good student ______.

5.__________ we can stay and play with each other.

三、选择填空

( ) 1. Chinese students have weeks in the summertime than American students.

A. more; on

B. fewer; on

C. more; off

D. less; off

( ) 2.I have money than you, but I have friends than you.

A. more; more

B.less; more

C.fewer; more

D.more; less

( ) 3.I think dog is ____________ animal in the world.

A. very kind

B. very clever

C. the kindest

D. cleverer

( ) 4. The room is big enough for ten people ____________.

A. to live

B. live

C. living

D. to live in

( ) 5____________ exciting news it is!

A. How an

B. What an

C. How

D. what

( ) 6.What house ____________ he ____________?

A. do, live

B. does, live in

C. do ,live in

D. does, live

【当堂检测】

一、用所给单词的正确形式填空。

1. I am old enough to look after (I). You needn’t worry about me.

2. Which subject is (interesting), History, Geography or Science?

3. What’s the (long) of your desk? It’s about one meter.

4. My father can do it ________(easy)

5.His school has _______ (few) teachers than ________ (I).

6.American students spend ________ (little) time ________ (do) homework than Chinese students.

灌南华侨双语学校初二英语巩固作业

初二()班学号姓名

课题:Unit 2 Grammar(1) 书写评价:成绩:

一.根据句意及中文提示完成单词

1. Simon is good at English. He always scores the most____(分数).

2. _______(健康)is more important than money and social position(社会地位).

3.Ceorge was unhappy because he got the_______(最少)money of the three.

4.If you are in the Friendship Club, you can make some______(网上的)friends.

5. British English is _______不同)from American English. You can find many________(不同)between them.

二.用所给单词的适当形式填空

1. I have a______ friend. Her English is_______ than mine.( good)

2.-Which is_________ problem of the three7

-I think the first one is_____________than the other two.( difficult)

3. Laura can play the piano______________(beautiful) than Jenny.

4. When I got to the hospital, I found my grandfather got even _______ (bad).

5. The ______ (little) you eat, the ________ (thin) you will be.

6. Which subject do you like_______(much), PE, Art or History?

7. We aLI think Alan can finish the work as________ (good) as Bill.

8. Of all the students, I scored the_________(few) points.

9. I think the _______________ (interesting) animal in the zoo is dolphin.

10. In Nanjing it's ______ in July, but it is even ______in August.( hot)

三、同义句转换

1. Kitty eats less food than any other student in her class.

Kitty eats _____________ food in her class.

2. Fred scored 10 points. Mike scored 9 points.I scored 6 points.

(1) Fred scored________ points ____ us three.

( 2)I scored ___________ points ____us three.

3.I have twenty yuan. Linda has eighteen yuan.

Linda has___________ than I.

4. Your coat isn't the same as mine.

My coat _____________ yours.

5. There is no difference between the two computers.

This computer is______________________that one.

三,根据中文提示完成下列句子,每空填一词

1.Nancy的书比Millie多。

Nancy _________ _________ _________than Millie.

2.-谁是你们班跑得最快的?一是林涛。

-Who________ _________ in your class?

-Lin Tao_______.

3.李先生的钱比王先生多,但拥有的朋友比他少。

Mr Li has______ _______ than Mr Wang, but he_______ _______ friends than Mr Wang.

4.这个故事没有那个故事有趣。

(1) This story is ________ _________ _________as that one.

(2) That story is _________ _________than this one.

灌南华侨双语学校初二英语预习案初二()班学号姓名

课题:Unit 2 Grammar (2)

【预习检测】

1.

2.In a _____school,boys and girls have lessons togrther.

3.Amy’s sweater and Kitty’s sweater are _______.

4.Simon’s jacket is _______from John’s jacket.

5.Daniel scored the______points in our class.

二、翻译下列短语。

1、得分最多

2、许多钱

3、所有的课程

4、一袋西红柿

5、在他的业余时间

6、加入读书俱乐部

7、上电脑课8、一次不重要的会议

9、不同的语言10、在同一所学校

三、选择填空

( )1. I’m hungry, _______me my lunch. A. take B. bring C. show D. help ( )2. I can play _______him in the park.

A. to

B. and

C. with

D. for

( )3. Don’t read ______ the sun.

A. in

B. on

C. under

D. below

( )4. Man _________live without water or air.

A. can

B. may

C. can’t

D. must

( )5. _________ big fish they are!

A. What

B. How

C. What a

D. How a

( )6. John enjoys _______football, but he wants ________basketball.

A. to play, playing

B. to play, to play

C. playing, playing

D. playing, to play

( )7. Of all the subjects, I like English ________.

A. well

B. good

C. better

D. best

( )8. I can’t make him________ that if he doesn’t want to.

A. do

B. to do

C. doing

D. did

【当堂检测】

一、用所给动词的正确形式填空。

1.I’m good at _______(play) volleyball.

2.He likes ______(do) the same things as me.

3.The teacher asks him _______(clean) the blackboard.

4.Excuse me,can you tell me how______ (get) to the nearest hospital?

5.I try _____ (eat) it only a week.

6.May ______ (exercise) every day.

灌南华侨双语学校初二英语巩固作业

初二()班学号姓名

课题:Unit 2 Grammar(2) 书写评价:成绩:

一、单项选择

( )1. You look______your twin brother. You are tall and fat, but he's short and thin.

A.the same as B.the same like C.different from D.different as

( )2. -Could I have some milk?

-Certainly. There is____ in the bottle.

A.little B.a little C.a few D.few

( )3. If we follow his plan, we can do it better with____money and_____ people.

A. less; less

B.fewer; fewer

C. less; fewer

D.fewer; less

( )4. What's the_______ Chinese name and English name?

A.different from B.different between C. difference from D.difference between ( )5.I like English——any other subject. It's the most interesting.

A.much more B.more than C.much better D.the best

( )6. Sandy is_________ I, so she sits in front of me.

A.taller than B.as tall as C.not as tall as D.the tallest

( )7. -May I have—juice, please?

-Sorry, but there isn't—juice left.

A.some more; any more B.some more; some more

C.any more; any more D.more some; more any

( )8. Please try to make as—mistakes as possible next time.

A.little B.less C. few D.fewer

( )9. My brother and I do not look_____’

A.likes B.like C.alikes D. alike

( )10. If you eat_____food, you'll be_______.

A.too much; too much B.much too; too much

C.too much; much too D.much too; much too

This is______ ___________ladder.

.三、根据中文提示完成下列句子,每空填一词

1.他犯了和我一样的错误。

He made________ _________mistakes as I,’

2.他们班在运动会上得分最少。

Their class_________ _________ __________ at the sports meeting.

3.你的裙子和我的颜色一样。

Your skirt is_________ _________ _________ _________ mine.

4.我们吃早饭用的时间比你们少。’

we spend _______ ________on breakfast than you.

5.你能找出两者之间更多的不同之处吗?

Can you find _______ _________ _________them?

灌南华侨双语学校初二英语预习案

初二()班学号姓名

课题:Unit 2 Integrated skills

【预习检测】

一、根据句意选出合适的单词,并用其正确形式填空。

1、Chinese students usually have eight weeks off in the ________ .

2、How far does Lucy live from your school? About three ______ .

3、My school has _____ teachers than John’s school.

4、My school uniform is _______ from May’s.

5、What’s the _______of the river? About 200 metres long.

二、根据汉语完成句子

1.Do you like to ______________________________(去参加学校旅行)?

2.I like ________________________________(穿校服).

3.Please write something about ________________(你理想中的学校).

4.There are about 15 students __________________(在每一个班).

5.We have a big library _______________ (有许多有用的书).

三、选择填空

( ) 1.Lucy’s sports shoes are yours.

A. like

B. alike

C. the same

D. different ()2. Some people spend their lives _______about money.

A. to think

B. think

C. thinking

D. on thinking ()3 I was ________at the __________news.

A. surprised…surprised

B. surprised…surprising

C. surprise…surprised

D. surprise…surprise

( ) 4..—Could you pass me the salt, please? —.

A.Yes,I could.

B.Here are you.

C.Here you are.

D.Let me give you. ( )5.My friend, Andy lives on the third floor. I live on the fifth floor. I live two floors him.

A.below

B.above

C.over

D.on ( )6.Sorry, my father isn't in. I'll ask him you back.

A.to call

B.call

C.calling

D.calls

【当堂检测】

一、用所给动词的正确形式填空。

1. (take) a bus is much faster than walking,

2.Quiet! The students (have) an English class.

3.Could you tell me how (get) to the hospital?

4.My mother asks us (not watch) too much TV.

https://www.wendangku.net/doc/c714095253.html,ually,monkeys like______(eat) nuts.

6.May I _____(borrow) your bike?

灌南华侨双语学校初二英语巩固作业初二()班学号姓名

课题:Unit 2 Integrated skills 书写评价:成绩:

一、根据句意及中文提示完成单词

1. Do your students in your school________(穿)uniforms on Mondays?

2.-Do you know the______(长度)of the longest river in the world?

-Oh, it's the Nile. It's about 6,650 kilometres long.

3.The students in our school do morning______ (操)every day.

4.I spend_____ (少)time on homework than John does.

5.I have______(少)comic books than you.

6. How many_________(同学)do you have in your class?

二、用所给单词的适当形式填空

1. The________(long) of this ruler is nearly one metre.

2. If you want to become_________(health), you must do more exercise.

3. Red is _________(popular) than black this year.

4. My mother always cooks__________(taste) meals on Sundays.

5. Look, it's raining__________(heavy). We'd better stay at home.

6. These cars are___________(difference) from those ones.

7. Of all the subjects I like Geography___________(little).

8. She is too young. Don't leave her at home by___________(she).

三、同义句转换

1.Mv car isn't the same as Paul's car.

My car is__________________Paul s car.

2. Daniel has more books than any other student in his class.

Daniel has__________________books ln his class.

3. He could look after himself when he was five.

He_____________look after himself at the age of 5.

4.Lucy has more money than Lily.Lily has more money than kitty.

(1)Lucy has the________money of the three.

(2)Kitty has the_______money of the three.

5.The boy is too young to go to school.

The boy________________to go to school.

四、根据中文提示完成下列句子,每空填一词

1.你的文具盒和他的一样大。

Your pencil box is_______________________________.

2.我们学校的学生比他们学校的少。。

There are____________ in our school ________in their school.

3.每天我们有半个小时的作业。

We have___________________ homework every day.

4.每学期我们学校会去博物馆或剧院参观。

Every term,we___________________ to a museum or a theatre.

5.我们有一个有很多书的大图书馆。

We have______________ lots of books.

灌南华侨双语学校初二英语预习案初二()班学号姓名

课题:Unit 2 Main task

【预习检测】

一、根据句意和括号中的提示填上句中所缺单词

1. Our English teacher is always very ________to us. (friend)

2. He would like ________ a teacher when he grows up. (be)

3. He's one of ________ boys in my class. (nice)

4. You must be ________than before. The bus nearly hit you. (careful)

5. Skiing is as ________as diving. (dangerous)

6. Millie's English is ________ than Amy's. (good)

7. Peter is ________ one of the six students. (heavy)

8. Betty is ________. (慷慨的)

9. Mr Zhou often helps people ________ problems. (解决)

10. Simon has more _______(回形针) than Kitty.

二、选择填空

()1. Is there ________ today's newspaper?

A. something new in

B. anything new in

C. new anything at

D. new something on

()2. Don't eat that meat. It smells ________.

A. dirty

B. delicious

C. bad

D. badly

()3. ----Lily, would you like ________ apples?

---- No, thank you. I’m full.

A. some

B. fewer

C. an

D. many

()4. Lucy’s cake is ________ of all.

A. big

B. bigger

C. biggest

D. the biggest

()5. The Changjiang River is ________ in the world.

A. a longest river

B. the longest rivers

C. one of the longest river

D. one of the longest rivers

()6. Today is my birthday. I feel very ________.

A. happily

B. happy

C. happier

D. happiest

()7. Look! She ________ a smile on her face and looks happy.

A. with

B. wear

C. is wearing

D. have

()8. There’s ________ in the fridge.

A. nothing else

B. everything else

C. else nothing

D. else everything

【当堂检测】

一、用所给动词的正确形式填空。

1. Don’t make a noise. Grandma ______(sleep).

2. It ______(take) you half an hour to finish your homework last night.

3. ______it ______(rain) when school was over yesterday?

4. —What ______you _____(do) tomorrow?

—We ______ (play) basketball.

6.The students will go to the Summer Palace if it ______(not rain) tomorrow.

灌南华侨双语学校初二英语巩固作业

初二()班学号姓名

课题:Unit 2 Main task

一、根据句意及中文提示完成单词

1.I often play____(网球)with my friends after work.

2. We are good friends and we often go to shopping mall____________(一起).

3. The old like listening to the classical music, yet the young are fond of_______(流行的)music.

4. There is much________(有用的)news in the newspaper.

5. We have some________(课外的)activities in our school now.

6. We will be__________(不能)to pass the exam if we don't study hard.

二、用所给单词的适当形式填空

1. The__________(long) of this ruler is nearly one metre.

2. If you want to become__________(health), you must do more exercise.

3. Red is - _(popular) than black this year.

4. My mother always cooks__________(taste) meals on Sundays.

5. Look, it's raining___________(heavy). We'd better stay at home.

6. These cars are__________(difference) from those ones.

7. Of all the subjects I like Geography___________(little).

8. She is too young. Don't leave her at home by_________(she).

三、根据中文提示完成下列句子,每空填一词

1.我们有一个大的图书馆,藏有很多有用的书籍。

We have ________________________________books.

2.河的一边是商店,另一边是饭店。

There's a shop________ of the river and a restaurant_________.

3.Rose的鞋子和我的颜色一样。

Rose's shoes_____________________________________________.

4.Green先生将休假两个星期。

Mr Green will__________________________________________.

5.美国的学校生活不同于中国的学校生活。

The life in the USA is___________________________________in China.

四、书面表达

1.假如你是Daniel,你的朋友Fred想了解你的校园生活,请完成下面这封信,包括以下几个方面:何时

上、下课?开设的课程是什么?有哪些运动项目及课外活动?你对学校生活的总体评价如何?(80词左右)

______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

最新苏教版三年级上册数学全册课时练习 (含答案)

三上第一单元两、三位数乘一位数第一课时 1.口算。 70×4= 6×30= 800×5= 400×9= 7×60= 500×6= 2.口算80×9,可以先算()个()乘9,得()个(),是()。 3.在括号里填上“>”或“<”。 314×9()2700 89×5()450 360()91×4 4.明明一家3口去公园划船,每人票价28元。他们带90元够吗?

答案: 1. 280、3600、180、420、4000、3000。 2.8、十、72、十、720。 3.>、<、<。 4.28×3<90,够了。

三上第一单元两、三位数乘一位数第二课时 1.下面的说法是否正确?正确的画“√”,错误的画“×”。 (1)求36是9的几倍,列式是36÷9=4。‥‥()(2)求42比6多多少,列式是42÷6=7。‥‥‥()2.列式计算。 (1)56里面有()个7,56是7的()倍。 (2)12里面有()个3,12是()的()倍。 3.学校生物小组养了白兔24只,灰兔3只,黑兔6只。 (1)白兔的只数是灰兔的几倍? (2)白兔的只数是黑兔的几倍? 4.河里有6只鸭,还有42只鹅。 (1)鹅的只数是鸭的几倍? (2)鹅比鸭多多少只? 5.小红有6张画片,小华有15张画片;后来,他们又分别收集了3张画片。这时小华的画片张数是小红的几倍?

答案: 1.(1)√(2)× 2.(1)8 8 (2)4 3 4 3.(1)24÷3=8 (2)24÷6=4 4.(1)42÷6=7 (2)42-6=36(只) 5. 6+3=9(张) 15+3=18(张) 18÷9=2

三上第一单元两、三位数乘一位数第三课时 1. 亮亮捡了30个贝壳,东东捡的个数是亮亮的2倍。东东捡了多少个贝壳? 2. 小白兔拔了9个萝卜,小灰兔拔的个数是小白兔的3倍,小黑兔拔的个数是小灰兔的2倍。小灰兔和小黑兔各拔了多少个? 3.一支铅笔5角钱,一支自动笔2元钱。 (1)一支自动笔的价钱是一支铅笔的几倍? (2)一支钢笔的价钱是一支自动笔的5倍,一支钢笔多少钱? 4.三年级同学举行踢毽子比赛。小明踢了40下,小丽踢的下数是小明的2倍,小强比小丽多踢了15下。小强踢了多少下? 5.小刚收集了200张邮票,小芳收集的邮票张数比小刚的2倍多一些,3倍少一些。小芳收集的邮票最少有()张,最多有()张。

课时达标训练(一)

课时达标训练(一)质点参考系和坐标系 [基础练] 一、选择题 1.在研究物体的运动时,力学中引入“质点”的概念,从科学方法上来说属于( ) A.极限分析物理问题的方法 B.观察实验的方法 C.建立理想物理模型的方法 D.等效替代的方法 2.[多选]以下关于质点和参考系的说法正确的是( ) A.研究“嫦娥二号”卫星在绕月球飞行的轨迹时,卫星可以看成质点 B.研究在平直公路上的汽车的行驶速度时,可以将汽车看成质点 C.参考系是在描述物体运动时,用来作参考的物体,必须选静止的物体 D.参考系可以任意选择,并且选择不同的物体作参考系来描述同一个物体的运动时,结果是相同的 3.如图所示,我国空军在进行空中加油训练,大型加油机与受油机在空中以同样的速度沿同一方向水平飞行。下列说法中正确的是( ) A.选地面为参考系,受油机是静止的 B.选地面为参考系,加油机是静止的 C.选加油机为参考系,受油机是运动的 D.选加油机为参考系,受油机是静止的 4.[多选]关于坐标系,下列说法正确的是( ) A.建立坐标系是为了定量描述物体的位置以及位置的变化 B.坐标系都是建立在参考系上的 C.坐标系的建立与参考系无关 D.物体在平面内做曲线运动,需要用平面直角坐标系确定其位置及位置的变化 二、非选择题 5.如图所示是特技跳伞运动员的空中造型图。当运动员们保持该造型下落时,若其中一名运动员以相邻的运动员为参考系,则他自己的运动情况怎样?当他俯视大地时,看到大地迎面而来,是以什么物体作为参考系的? 6. 如图所示,一根长0.8 m的直杆竖直放置,现有一内径略大于杆直 径的环,从杆的顶点A向下滑动,规定向下为正方向。

2019-2020年高二数学:课时达标训练(十二)

课时达标训练(十二) 等比数列的前n 项和 [即时达标对点练] 题组1 等比数列前n 项和公式的基本运算 1.等比数列{}a n 的各项都是正数,若a 1=81,a 5=16,则它的前5项和是( ) A .179 B .211 C .348 D .275 解析:选B 由16=81×q 5-1,q >0,得q =2 3 . 于是S 5=81????1-????2 35 1-2 3 =211. 2.设S n 为等比数列{}a n 的前n 项和,8a 2+a 5=0,则S 5 S 2等于( ) A .11 B .5 C .-8 D .-11 解析:选D 由条件得8a 1q +a 1q 4=0,因为{}a n 为等比数列,所以a 1q ≠0,则q =-2, 于是,S 5S 2=1-q 5 1-q 2 =-11. 3.等比数列{}a n 的前n 项和S n =3n + 1+a ,则a 的值为( ) A .3 B .-3 C .-1 D .任意实数 解析:选B 由q ≠1时,等比数列的前n 项和为S n =A ·q n -A 的形式知, S n =3n +1+a =3·3n +a 中a =-3. 4.设等比数列{}a n 的前n 项和为S n ,若S 3+S 6=2S 9,则公比q 的值为________. 解析:法一:q =1时不合题意.∴q ≠1,a 1(1-q 3)1-q +a 1(1-q 6)1-q =2a 1(1-q 9)1-q , 解得q =- 3 4 2 . 法二:∵S 3+S 6=2S 9,∴2(a 1+a 2+a 3)+a 4+a 5+a 6=2(a 1+a 2+…+a 9),∴-(a 4+a 5+a 6)=2(a 7+a 8+a 9),∴-(a 4+a 5+a 6)=2q 3 (a 4+a 5+a 6),解得q =- 3 42 . 答案:- 3 42 5.已知在公比为2的等比数列{a n }中,a 2+a 5+a 8+a 11+a 14+a 17+a 20=13,求该数列前21项的和S 21. 解:设等比数列{a n }的首项为a 1,公比q =2,前n 项和为S n .由题知a 2,a 5,a 8,a 11,

课时达标训练1.3

课时达标训练 1.(2013·泰州高一检测)下列化学用语正确的是( ) 的电子式H+]2-H+ B.次氯酸的结构式:H—Cl—O 的结构式N≡ D.质子数为53、中子数为72的碘原子I 2.(2014·宿迁高一检测)下列叙述错误的是( ) A.带相反电荷的离子之间的相互吸引力称为离子键 B.金属元素与非金属元素化合时,不一定形成离子键 C.只有阴、阳离子间才能形成离子键 D.非金属元素也可能形成离子键 3.(双选)下列关于物质与化学键的关系正确的是( ) A.离子化合物可能含共价键,共价化合物中不含离子键 B.共价化合物可能含离子键,离子化合物中只含离子键 C.构成单质分子的微粒一定含有共价键 D.在氧化钠中,除氧离子和钠离子的静电吸引作用外,还存在电子与电子、原子核与原子核之间的排斥作用 4.某元素的原子最外层只有一个电子,它与卤素结合时,所形成的化学键是 ( ) A.一定是离子键 B.一定是共价键 C.可能是离子键,也可能是共价键

D.使两原子都达到8电子稳定结构 5.(2014·聊城高一检测)下列分子的电子式书写正确的是( ) A.氨气:H B.四氯化碳:Cl C.氮气 D.二氧化碳 6.下列用电子式表示的化合物的形成过程正确的是( ) 7.(2014·新乡高一检测)下列物质中,含共价键的离子化合物是( ) 2 是常见的绿色氧化剂,其分子结构示意图如图所示,下列有关其说法不正确的是( ) 中含有离子键

中存在极性共价键 中存在非极性共价键 D.液态H2O2分子间存在氢键 9.(2014·济宁高一检测)标号为①~⑩的元素,在元素周期表中的位置如下: 试回答下列问题: (1)其原子只要形成一对共用电子对就达到了稳定结构的元素是。(填写元素符号) (2)①和④号元素形成的化合物的化学式为,用电子式表示其形成过程为。 (3)⑧号元素的最高价氧化物对应的水化物的化学式是。 (4)①、⑤、⑦号元素形成的一种化合物的电子式是,在该化合物中既含有键,又含有键。 10.(2014·无锡高一检测)有下列7种物质:A.干冰、B.氧化镁、C.氯化铵、 D.固态碘、 E.碱、 F.冰、 G.过氧化钾 (1)熔化时需要破坏共价键和离子键的是(填序号,下同); (2)熔点最低的是; (3)既有离子键又有共价键的是;

最新苏教版小学数学二年级上册课时练习试题及答案(全套)

第一单元100以内的加法和减法(三) 1.1 100以内的连加、连减和加减混合运算 1.口算。 62—30+25= 16—5+31= 20+28—13= 89—39—6= 2.在计算90—50+29时,先算(),再算(),结果是() 3.40与20的差再加上35,列式是(),结果是() 4.竖式计算。 46+36+18= 93—26—35= 23+47—28= 5.上午在摘了38个西瓜,下午摘了46个西瓜。 (1)一天共摘了多少个西瓜? (2)运走了60个,还剩多少个? □○□=□()□○□=□() 答案: 1.57 42 35 44 2.减法加法 69 3.40-20+35 55 4.100 32 42 5.(1)38+46=84(个)(2)84-60=24(个) 1.2 把两个数量摆成同样多的实际问题 1.第一行摆9个圆,第二行摆5个,第一行比第二行多()个,第一行移()个到第二行就同样多。 2.第一行摆8个,第二行摆12个,两行相差()个,第二行去掉()个就和第一行同样多。 3.画一画,再解答

(1)在横线上画△,比☆多6个,△有()个☆☆☆☆☆☆☆ □○□=□ (2)在横线上画△,比○少7个,△有()个○○○○○○○○○○ □○□=□ 4.看图填空。 OOOOOOOOO OOOOOOOOOOOOOOO (1)第一行添上()个,就和第二行同样多。 (2)第二行拿掉()个,就和第一行同样多。 (3)从第二行拿()个摆到第一行,两行的个数就同样多。 答案: 1.4 2 2.4 4 3.(1)13 △△△△△△△△△△△△△7+6=13 (2)3 △△△ 10-7=3 4.(1)6 (2)6 (3)3 1.3 求比一个数多(少)几的数是多少的实际问题 1、在横线上画○,比△少2个。 △△△△△△ □○□=□ 2、笑笑摘了21个葫芦,强强摘的葫芦比笑笑多12个,强强摘了多少个葫芦?

2018年高中物理选修3-1全套课时达标训练含答案解析

高中物理选修3-1 全册课时训练 目录 第一章静电场 第1课时电荷及其守恒定律 第2课时库仑定律 第3课时库仑定律与力学的综合应用 第4课时电场强度 第5课时电势能和电势 第6课时电势差 第7课时电势差与电场强度的关系 第8课时电场中功能关系问题分析 第9课时静电现象的应用 第10课时电容器的电容 第11课时平行板电容器问题求解方法 第12课时带电粒子在电场中的运动 第13课时电场中力学综合问题分析 第二章恒定电流 第1课时电源和电流 第2课时电动势 第3课时欧姆定律

第4课时测量小灯泡的伏安特性曲线 第5课时串并联电路 第6课时电流表和电压表 第7课时焦耳定律 第8课时导体的电阻 第9课时测金属丝的电阻率 第10课时闭合电路欧姆定律 第11课时闭合电路欧姆定律的应用 第12课时多用电表的原理及应用 第13课时测量电源电动势和内阻 第14课时电阻的测量方法 第15课时简单逻辑电路 第三章磁场 第1课时磁现象和磁场 第2课时磁感应强度 第3课时几种常见的磁场 第4课时通电导线在磁场中受到的力 第5课时运动电荷在磁场中受到的力 第6课时带电粒子在匀强磁场中的运动 第7课时带电粒子在复合场中的运动 第8课时带电粒子在有界磁场中运动的临界问题

1. 电荷 ①概念:自然界中总共有两种电荷:即正电荷和负电荷,其作用的基本特点是:同种电荷相互排斥;异种电荷相互吸引。 ②使物体起电的方法有三种:即摩擦起电、感应起电、接触起电,其实质都是电子的转移。 摩擦起电:当两物体相互摩擦时,因为不同物质对电子的束缚能力的强弱不同,对电子束缚能力相对较弱的物体失去电子而带正电,而对电子束缚能力相对较强的得到电子而带负电。 感应起电:当一个带电体靠近导体时由于电荷间相互吸引或排斥,导体中的自由电荷便会趋向或远离带电体,使导体靠近带电体的一端带异种电荷,远离的一端带同种电荷,这种现象叫静电感应。利用静电感应使金属导体带电的过程,叫做感应起电。 接触起电:用带电的物体与不带电的导体(或两个带相反电荷但所带电荷量不同的物体)接触,都可以电荷转移,进而使导体也带电(两物体带等量同种电荷),这种现象称为接触起电。 2. 电荷守恒定律 荷既不能创生,也不能消灭,它只能从一个物体转移到另一个物体,或从物体的一部分转移到另一部分,在转移的过程中,系统的电荷总数保持不变。 电荷守恒定律的另一种表述为:一个与外界没有电荷交换的系统,电荷的代数和是保持不变的。 3. 元电荷 ①电荷量:表示电荷的多少。单位:库仑,简称库。符号:C。 ②元电荷:最小电荷量,用e表示。e=1.60×10–19 C。所有带电体的电荷量或者等于e,或者是e的整数倍。电荷量不能连续变化。

人教版七年级上册数学全册课时练习带答案

第一章 有理数 1.1 正数和负数 1.下列各数是负数的是( ) A.23 B.-4 C.0 D.10% 2.放风筝是民间传统游戏之一.在放风筝的过程中,如果风筝上升10米记作+10米,那么风筝下降6米应记作( ) A.-4米 B.+16米 C.-6米 D.+6米 3.下列说法正确的是( ) A.气温为0℃就是没有温度 B.收入+300元表示收入增加了300元 C.向东骑行-500米表示向北骑行500米 D.增长率为-20%等同于增长率为20% 4.我们的梦想:2022年中国足球挺进世界杯!如果小组赛中中国队胜3场记为+3场,那么-1场表示 . 5.课间休息时,李明和小伙伴们做游戏,部分场景如下:刘阳提问:“从F 出发前进3下.”李强回答:“F 遇到+3就变成了L.”余英提问:“从L 出发前进2下.”……依此规律,当李明回答“Q 遇到-4就变成了M ”时,赵燕刚刚提出的问题应该是 . 6.把下列各数按要求分类: -18,227,2.7183,0,2020,-0.333…,-25 9 ,480. 正数有 ; 负数有 ; 既不是正数,也不是负数的有 .

1.2.1 有理数 1.在0,1 4,-3,+10.2,15中,整数的个数是( ) A.1 B.2 C.3 D.4 2.下列各数中是负分数的是( ) A.-12 B.1 7 C.-0.444… D.1.5 3.对于-0.125的说法正确的是( ) A.是负数,但不是分数 B.不是分数,是有理数 C.是分数,不是有理数 D.是分数,也是负数 4.在1,-0.3,+1 3,0,-3.3这五个数中,整数有 ,正分数有 , 非正有理数有 . 5.把下列有理数填入它属于的集合的大括号内: +4,-7,-5 4 ,0,3.85,-49%,-80,+3.1415…,13,-4.95. 正整数集合:{ …}; 负整数集合:{ …}; 正分数集合:{ …}; 负分数集合:{ …}; 非负有理数集合:{ …}; 非正有理数集合:{ …}.

陈情表课时达标训练

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D.????? 欲苟顺私情,则.告诉不许于其身也,则.耻师焉 3.下列各句中加点词的古今意义相同的一项是( ) A .零丁孤苦,至于成立.. B .岂敢盘桓,有所希冀.. C .是以区区.. 不能废远 D .欲苟顺私情,则告诉.. 不许 4.下列句中加点词的活用现象,与其他三项不同的一项是( ) A .历职. 郎署 B .但以刘日. 薄西山 C .非臣陨首所能上. 报 D .臣不胜犬马.. 怖惧之情 5.下列句子的句式特点与其他三项不同的一项是( ) A .州司临门,急于星火 B .计未定,求人可使报秦者 C .蚓无爪牙之利,筋骨之强

D.缙绅而能不易其志者 6.名篇名句默写。(每空0.5分,共5分) (1)______________,内无应门五尺之僮;____________,形影相吊。 (2)郡县逼迫,催臣上道;____________,____________。 (3)____________,凡在故老,犹蒙矜育,____________,特为尤甚。 (4)但以刘日薄西山,__________________,人命危浅,________________。 (5)__________,死当结草。__________,谨拜表以闻。 二、阅读鉴赏(19分,选择题每小题3分) 阅读下面的文言文,完成7~10题。 李密,字令伯,犍为武阳人也,一名虔。父早亡,母何氏醮①。密时年数岁,感恋弥至,烝烝②之性,遂以成疾。祖母刘氏,躬自抚养,密奉事以孝谨闻。刘氏有疾,则涕泣侧息,未尝解衣,饮膳汤药必先尝后进。

最新冀教版五年级上册数学全册课时练习含答案

1.1 用角度描述物体的方向1.小芳在小丽的()偏()()° 小丽在小芳的()偏()()° 2.巡洋舰在雷达站的()()。 潜水艇在雷达站的()()。 护卫舰在雷达站的()()。 3.选择合适的答案。 (1) (2)

4. 邮局在亮亮家的()偏()()。学校在邮局的()偏()()。答案:1.西南 40 北东 50 2.西偏北15 北偏东60 西偏南30 3.(1)C (2) D 4.东偏北40 东偏南25

1.2 认识简单线路图 一、看图分析李红上学、放学的路线。 李红从家先向()偏()()的方向行()米到市场;再向()偏()()的方向行()米到体育馆;再向()行()米到学校。 从学校先向()行()米到()再向()偏()()的方向行()米到()再向()偏()()的方向行()米到家。 二、 邮局妇婴医院从火车站到啤酒厂该怎样走? 三、乐乐从车站去游乐园,先向()偏()到电影院,再向()偏()到游乐园。

答案 一、南东60°125 东18°200 体育馆西南18°200 市场西北30°125 二、从火车站向南到妇婴医院,再向西到邮局,再向北到商场,再向西到啤酒厂 三、东南东南

2.1 小数点位置变化(一) 一、填一填。 1、把3.67扩大10倍是( ),扩大100倍是( ),扩大1000倍是()。 2、()扩大10倍是86,4.08扩大( )倍是408。 3、0.91米=( )厘米0.03平方米=( )平方分米 6.24升=( )升( )毫升=( )毫升 2.078千米=( )米0.65吨=( )千克 8.22米=( )米( )厘米 4、0.365×( )=36.5 2.058×( )=20.58 5.6×( )=5600 0.032×( )=3.2 二、直接写出得数。 3.74×10= 7.2×100= 0.005×1000= 0.2×10= 10×0.6= 100×0.18= 1000×2.1= 1000×0.7= 三、地球上重1千克的物体,到月球上大约重0.16千克。地球上重10千克、100千克、1000千克的物体,到月球上大约各重多少千克?

2021年高中数学课时达标训练十一新人教A版选修

2021年高中数学课时达标训练十一新人教A 版选修 题组1 由抛物线方程求焦点坐标和准线方程 1.对抛物线y =4x 2 ,下列描述正确的是( ) A .开口向上,焦点为(0,1) B .开口向上,焦点为? ? ???0,116 C .开口向右,焦点为(1,0) D .开口向右,焦点为? ? ? ??0,116 2.抛物线y =-x 2 8的准线方程是( ) A .x =132 B .y =2 C .x =1 4 D .y =4 3.抛物线y 2 =ax (a ≠0)的焦点到其准线的距离是( ) A. |a |4 B.|a |2 C .|a | D .-a 2 题组2 求抛物线的标准方程 4.焦点是F (0,5)的抛物线的标准方程是( ) A .y 2 =20x B .x 2 =20y C .y 2=120x D .x 2 =120 y 5.顶点在原点,且过点(-4,4)的抛物线的标准方程是( ) A .y 2 =-4x B .x 2 =4y C .y 2 =-4x 或x 2 =4y D .y 2 =4x 或x 2 =-4y 题组3 抛物线定义的应用 6.设圆C 与圆x 2 +(y -3)2 =1外切,与直线y =0相切,则C 的圆心轨迹为( ) A .抛物线 B .双曲线 C .椭圆 D .圆 7.若抛物线y 2 =8x 上一点P 到其焦点F 的距离为9,则点P 的坐标为( ) A .(7,±14) B .(14,±14) C .(7,±214) D .(-7,±214)

8.若点P 是抛物线y 2 =2x 上的一个动点,求点P 到直线3x -4y +72=0的距离与P 到 该抛物线的准线的距离之和的最小值. 题组4 抛物线方程的实际应用 9.某抛物线拱桥跨度是20米,拱桥高度是4米,在建桥时,每4米需用一根支柱支撑,求其中最长支柱的长. 10.如图所示,一隧道内设双行线公路,其截面由长方形的三条边和抛物线的一段构成,为保证安全,要求行驶车辆顶部(设为平顶)与隧道顶部在竖直方向上高度之差至少有0.5米. (1)以抛物线的顶点为原点O ,其对称轴所在的直线为y 轴,建立平面直角坐标系(如图),求该抛物线的方程; (2)若行车道总宽度AB 为7米,请计算通过隧道的车辆限制高度为多少米(精确到0.1米)? [能力提升综合练] 1.已知抛物线y 2 =2px (p >0)的准线与圆(x -3)2 +y 2 =16相切,则p 的值为( ) A.1 2 B .1 C .2 D .4 2.抛物线y =12x 2上的点到焦点的距离的最小值为( ) A .3 B .6 C.148 D.1 24 3.动点到点(3,0)的距离比它到直线 x =-2的距离大1,则动点的轨迹是( ) A .椭圆 B .双曲线 C .双曲线的一支 D .抛物线 4.已知F 是抛物线y 2=x 的焦点,A ,B 是该抛物线上的两点,|AF |+|BF |=3,则线段 AB 的中点到y 轴的距离为( ) A.3 4 B .1 C.54 D.74

2019-2020年高中数学课时达标训练十二抛物线及其标准方程新人教A版选修

2019-2020年高中数学课时达标训练十二抛物线及其标准方程新人教A 版 选修 题组1 由抛物线方程求焦点坐标和准线方程 1.对抛物线y =4x 2 ,下列描述正确的是( ) A .开口向上,焦点为(0,1) B .开口向上,焦点为? ????0,116 C .开口向右,焦点为(1,0) D .开口向右,焦点为? ????0,116 2.抛物线y =-x 2 8的准线方程是( ) A .x =132 B .y =2 C .x =1 4 D .y =4 3.抛物线y 2 =ax (a ≠0)的焦点到其准线的距离是( ) A. |a |4 B.|a |2 C .|a | D .-a 2 题组2 求抛物线的标准方程 4.焦点是F (0,5)的抛物线的标准方程是( ) A .y 2 =20x B .x 2 =20y C .y 2=120x D .x 2 =120 y 5.顶点在原点,且过点(-4,4)的抛物线的标准方程是( ) A .y 2 =-4x B .x 2 =4y C .y 2 =-4x 或x 2 =4y D .y 2 =4x 或x 2 =-4y 题组3 抛物线定义的应用 6.设圆C 与圆x 2 +(y -3)2 =1外切,与直线y =0相切,则C 的圆心轨迹为( ) A .抛物线 B .双曲线 C .椭圆 D .圆 7.若抛物线y 2 =8x 上一点P 到其焦点F 的距离为9,则点P 的坐标为( ) A .(7,±14) B .(14,±14) C .(7,±214) D .(-7,±214) 8.若点P 是抛物线y 2 =2x 上的一个动点,求点P 到直线3x -4y +72=0的距离与P 到 该抛物线的准线的距离之和的最小值.

一年级下册数学试题-课时练 含答案 人教版

第一单元第1课时《认识平面图形》课时练 一、填一填。 1. 我来选一选。 ?? 是长方形,是正方形,是圆, 是三角形,是平行四边形。 二、我会连。 把图形与对应的名称连起来! 三、我会圈。(用哪个物体可以画出左边的图形?) ①②③⑤ ⑥⑦⑧⑨⑩

四、我会涂。(把下列图中的正方形涂上红色,长方形涂上绿色。) 五、我会数。 上图很像一辆( ),其中有( )个△,( )□个, 这图案像一只( ),它用了( )个( )形和( )个( )形,以及( )个( )形和( )个( )形。 答案: 一、⑦⑧⑤⑥⑨②⑩④?? 二、略 三、②③②② 四、略 五、1.车 1 1 2 3 2.蜻蜓 5 长方 4 正方 2 三角 5 圆(顺序不唯一)

第一单元第2课时《平面图形的拼组》课时练 一、从下面的图形中选三个可以拼成的图形。 应选( )、( )和( )。 二、我会连。(下面的图形是从上面哪个长方形中剪下来的?) 三、我会选。 从下面的右边选出1个能和左边拼成正方形的图形。(在小题上画“√”) (1) (2) (3) 四、数一数。

下图有()个三角形 下图是由()个小三角形拼成的。 下图共有()个正方形 五、你能用长方形、正方形、三角形、圆或半圆设计一个美丽的图案吗?试一试。 答案: 一、①③⑤ 二、略 三、1.(1)②(2)①(3)③ 四、3 4 5

五、略 第一单元第3课时《认识七巧板》课时练 一、神奇的七巧板。 七巧板是由( )种图形组成的,其中有( )个三角形,( )号和( )号图形,( )号和( )号图形是完全一样的。 二、下面的图形都是七巧板拼成的,像什么?试着拼拼看。 三、我会选。 有一种四巧板,由4块拼板组成,各块的形状如下图。 下面哪些图形是由四巧板拼成的?(在下面的括号里画“√”)

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