九年级unit3基础知识点练习题

unit3 Could you please tell me where the restaurants are?

一．短语归纳

1.a pair of 一对，一双，一副

2.between A and B在a和b之间

3.on one’s / the way to 在去……的路上

4.pardon me 什么，请再说一遍

5.pass by 路过经过

6.look forward to 盼望期待

7.excuse me 打扰了请原谅8.get some magazines 得到一些杂志

9.get some information about 获取有关……的一些信息10.turn left\right 向左\向右转11.go past 经过路过12.a little earlier 早一点儿

13.a good place to eat 一个吃饭的好地方14.in different situation 在不同的情况下15.on time 准时按时16.get to 到达

17.have dinner 吃晚餐18.on one’s / \the right在右边

https://www.wendangku.net/doc/973358873.html,e on 快点请过来20.the shopping center 购物中心

21.the corner of....... 的角落/拐角处22.lead into 导入引入

二.用法集萃

1．not ……· until……直到……猜…… You never know until you try something.

2.let’s do sth 咱们做某事吧！

3.spend time doing sth 话费时间做某事

4.thank sb for doing sth 为做某事而感谢某

5.would like to do sth 想要做某事

6.look forward to doing sth 盼望做某事

7. It see ms (that)…

It seems a rock band plays there every evening.

8. Could you please tell me... ?

9.take的用法

① take some food take some medicine （=have吃，喝）

② take notes做笔记③ take one’s temperature ( 测量）

④ It takes sb some time/money to do something （花费，需要）

⑤ I’ll take this coat.（=buy购买）⑥ take somebody / something to （带领，拿去，取）

⑦take a train to Chongqing （乘坐）⑧ take off（脱下）

10.turn 的用法

turn to page 80 翻到It is your turn.轮到你了。

at the turning 在转弯处turn on/ off/ up/ down 关

turn right/ left at the first turning /crossing

第三单元检测

一．单项选择

1. — Does my question sound enough?

—I don’t think so. You can ask more by using “could” instead of “can”.

A. politely; politely

B. politely; polite

C. polite; politely

D. polite; polite

2. It’s not enough an English club.

A. join

B. to join

C. joining

D. to joining

3. — You really went to the park last weekend?

— Yes, I go there. Look! This is a photo of me in the park.

A. will

B. would

C. do

D. did

4. —I don’t know next. —Let’s ask our teacher for help.

A. what to do

B. what should I do

C. how to do

5. — Would you like to go to the forest park or the water park?

—Oh, it’s hard to choose. are my favorites.

A. Either

B. Neither

C. Both

D. All

6. — I wonder we’ll go to the Children’s Park this weekend.

— We can go there by bus.

A. how

B. when

C. where

D. if

7. Could you please tell me ?

A. where is the nearest library

B. where the nearest library is

C. where is the nearest bookstore

D. where the nearest bookstore is

8. What did you say just now? — I asked her .

A. where is the hotel

B. where the hotel is

C. where was the hotel

D. where the hotel was

9. —I am worried about the coming speech. I don’t even know .

— What about singing a song?

A. how I can start with

B. what I can start with

C. how should I start with

D. what should I start with

10.Tom never went to bed he finished his homework last night.

A.because

B.if

C.until

D.while

11.On my way home,I pass a fruit shop every day.

A.to,by

B.to,past

C.\, by

D.of, for

12.I miss my grandparents very much. I’m seeing them again.

A.looking for

B.looking after

C.looking forward

D.looking forward to

13.It’s always busy, so come earlier to get a table.

A.a bit of

B.a little

C.very

D.more

14.The bookstore is your right,beside the bank.

A.in

B.at

C.on

D.of

15.The expressions they use might whom they are speaking to or how well

they know each other.

A.instead of

B.lead in to

C.because of

D.depend on

16. — The game is too hard for me. I will certainly lose.

—You never say no before you try.

A. Forget it!

B. I’m sorry.

C. Come on!

D. Pardon me?

17.Students should learn how ________ problems.

A．solve B．solving C．can solve D．to solve

二、用所给单词的适当形式填空。

1.I’ looking forward to (see) you again.

2.Would you like (go)to a ovie with us tonight?

3.We should speak to the old (polite).

4.I don’t know how long he spent (drive) a car to shanghai yesterday.

5.Thank you very much for (tell) e the truth.

6.He drove his car in the (derect) of Beijing.

7.It’s sunny today, let him (go) swimming.

8.She is an (Italy) singer.

9．The flower is ________ (迷人的) at night.

10．It is ________ (方便的) to go shopping in this area.

11．Please speak________ (礼貌地) to the old people.

12．I have enough time ________ (go) to school by bike.

13．Could you tell me how ________ (go) home?

14．It's ________ (polite) to speak loudly in public.

15．There are few people in the street.It's ________ (crowded) at all.

16．I would like ________ (make) a postcard.

17．He is ________ (wonder) if he will go to the Summer Place.

18．Would you mind ________ (open) the door?

19．Could you tell me where the restrooms ________ (be)?

20．I am ________ (excite) to go swimming.

21．You don't need ________ (go) to school.

22．If it doesn't rain tomorrow, we ________ (have) a party.

23．The restaurant is always busy, so come a little ________ (early) to get a table. 三将下列简单句合并为复合句

1．Where is my Chinese book? I don't know

.I don't know ______ my Chinese book ____．

2．She studies in Lantian Middle School. Jane says.

Jane says ______ ________ in Lantian Middle School.

3．Do you study French? Could you tell me?

Could you tell me ____ ______ ________ French?

4．Was he the first to come here? Please tell me.

Please tell me ____ ____ ______ the first to come here.

5．The earth goes around the sun. The teacher told the students.

The teacher told the students ______ the earth ______ around the sun.

四A. 从方框中选择合适的词组，并用其适当形式填空。

（such as, ask about, lead in, parking lot, look forward to address walk up, speak）

1. People in the west don’t like to ladies’ ages.

2. I am interested in many Hollywood animations (卡通影片), Up and Frozen.

3. I your reply soon.

4. There is not a near the cinema, so we’d better take a bus instead of driving there.

5. By to a request with a question, you can make others feel more comfortable.

6. Look! The policeman is to us.

7 There will be a speech in the hall. The is a famous scientist.

8.Would you please tell me your e-mail

B

Life is not easy, so I’d like to say “When anything (1)_______, believe in yourself!” When I was a young boy, I was too shy to speak to anyone. My classmates often laughed (2)_________ me. I was sad but could do nothing. Later, something happened, and it (3) my life. It was an English speech contest. My mother asked me to take (4)_______in it. What a terrible idea! It meant I had to speak (5)________all the teachers and students of my school! “Come on, boy. Believe in yourself! You are sure to (6)_________.” Then mother and I talked about many different topics（主题）. At last I (7)________the topic “Believe in yourself”. I tried my best to remember all the speech and (8)________ it over 100 times. With my mother’s great love, I did well in the contest. I could (9)___________ believe my ears when the news came that I had won the first place. I heard the cheers (欢呼声)from the teachers and students. Those classmates who once looked (10)__________ on me, now all said congratulations to me

Unit7 Teenagers should be allowed to choose their own clothes.一．短语归纳

1.get his driver’s license 取得驾驶执照

2.no way没门，不行

3.sixteen-year-olds 十六岁的人sixteen-year-old 十六岁的

4. be worried about=worry about 担

5. have part-time jobs 做兼职工作

6. get one’s ears pier ced 打耳洞

7. get / have / make sth. done 使某物被做…… 8. stop doing sth 停止做某事

9. stop to do sth. 停下来去做某事10. spend time with sb. 花时间和某人在一起11.take photos, take a photo 照相https://www.wendangku.net/doc/973358873.html,e a flash 使用闪光灯

13.all night 整夜14.stay by my side 呆在我身边

15.make sure = be sure 确保，确定16.keep sb. (away) from sth使某人远离某物17. hurt oneself 伤害某人自己18. give sb. a hug = hug sb. 拥抱某人19.lift sb.up 举起某人20. cough badly 剧烈地咳嗽

21. talk back 回嘴22. an adult 一个成人

23. think back to 回想起24. regret doing sth. 后悔做了某事

25. make one’s own decision 做某人自己的觉得26.too + adj.+ to do sth. 太…而不能做某事27.learn…from…从…学到… 28.agree with sb 同意某人的观点

29.disagree with sb. 不同意某人的观点30.move out 搬出去

31.take care of = look after=care for 照顾32.manage one’s own life 管理自己的生活33.manage to do sth 努力完成某事34. that is why 那就是为什么…

35.continue to do sth继续做某事36. take a test参加考试

37.pass the test通过考试38.fail the test考试不及格

39.be strict with sb in sth在某方面对某人要求严格40.get in the way of妨碍…

41.a running star一个跑步明星42.a professional runner一个专业的跑步运动员43.grow up长大44.allow sb. to do sth.允许某人做某人

45.should be allowed to do sth. 应该被允许去做某事

46.have nothing against doing sth.不反对做某事47.succeed in doing sth.成功做某事

48.fail to do sth. 做某事失败49.end up with 以…结束end up as 最终成为

50.practice doing sth.练习做某事51.see sb. do sth. 看见某人做了某事

52.spend time on sth.在某事上花时间spend time in doing sth在做某事上花时间

53. care about sb.关心某人54.talk with sb. about sth.和某人谈论某事55.make a choice做选择56.have a chance to do sth.有机会去做某事二．用法集萃

1．She is a sixteen-year-old girl.=She is sixteen years old.

2. allow sb. to do sth. 允许某人做某事（主动语态）

be allowed to do sth. 被允许做某事（被动语态）

Mother allows me to watch TV every night.

LiLy is allowed to go to America.

3. get their ears pierced 穿耳洞

让/使（别人）做某事get sth. done(过去分词)

have sth. done

I get my hair cut. == I have my hair cut.

4. enough 足够

形容词＋enough 如：beautiful enough足够漂亮

enough＋名词如：enough food 足够食物

enough…to 足够…去做…

例：I have enough money to go to Beijing. 我有足够的钱去北京。

She is old enough to go to school.她够大去读书了。

5. stop doing sth. 停止做某事Please stop speaking.

stop to do sth. 停止下来去做某事Please stop to speak.

6. 系动词用法：系动词+adj

常用的系动词有：look, feel, be, become, get, turn, smell, taste, stay(保持), kept等。连系动词除be和become等少数词可接名词作表语外，一般都是接形容词。

例：They are very happy. He became a doctor two years ago.

She felt very tired. The grass turns green.

7. get in the way of 碍事，妨碍如：

Her social life got in the way of her studies.

8. also 用于句中I also like apples.

either用于否定句句末I don’t like apples, either.

too 用于肯定句句末I like apples, too.

新版新目标英语八年级下册unit3知识点总结

Unit 3 Could you please clean your room? Section A 1.Could you please do sth ?用于提出请求，希望得到对方肯定回答，语气较委婉。 肯定回答：Sure./ Of course./ Certainly./No problem. 否定回答：Sorry , I can’t. / I’m afraid I can’t. 在表示请求帮助或请求允许的疑问句中，常用could代替can，以表示礼貌，委婉或不确定的语气，而can 则不具备这些语气。这种情况下不能把could 看作can 的过去式。以上两句中用could 是为了表示礼貌的请求。表示请求帮助或请求允许时，除了can, could 之外，还可以用may，句子的表达方式也各有不同，可以用不同的方式来表示同一个概念。Could / Can / May I use your car for a day? 作允答可以各种各样： 如同意可以说Yes，或Sure 或Certainly，还可说Yes, (do) please. 或Of course. (you may / can). 或That's OK / all right. 如果不同意，可以说I'm sorry you can't. 或I'm really sorry, but I have to use it today. 要避免说No, you can't. 这样显得很不礼貌。否定回答通常用委婉语气。 2. take (1)取，拿：Please take some books to the classroom. (2)吃，喝，服用Take some medicine. (3)乘车，船等We can take a bus to the park. (4)花费（时间、金钱）It took me 2 hours to do my homework. take care of 照顾take a walk 散步take awa拿take up占据take place 发生take off脱下； take one’s time慢慢来 3.problem question 问题 problem客观存在待解决的问题，侧重困难。Solve the problem question因存疑而提出问题，侧重疑惑。answer the question 4.(1)neither adv 也不句子须部分倒装。此时可用nor替换neither I don’t like this dress. 我不喜欢这件连衣裙。Neither / Nor do I. 我也不喜欢。 【注意】肯定句：He likes beef..--So do I. 我也喜欢。 (2) neither …nor… 既不…也不…, 连接两个词做主语，谓语动词就近原则Neither Tom nor I am a student (3) neither 作代词表示“两个都不”，它作主语时，谓语动词常用单数。Neither of my parents is at home. 辨析also, too, either, neither (1)also 较正式，在句中位于行为动词前，系动词、助动词或情态动词之后。 Peter also likes beef. I am also a student. She can also swim. (2)too较口语，多用在肯定句句末。 (3)either 表示“也”时，一般只用于否定句句末。 I don’t have much money either. (4)neither 用作副词，意为“也不”解释，句子须采用部分倒装。 also和too常用于肯定句，neither用于否定句； either表示“也”用于否定，但either…or用于肯定。 5.or 否定句也不We don’t have tea or coffee. 陈述句或者Answer me yes or no. 疑问句还是Do you like red or pink? 表转折否则祈使句Hurry up, or you will be late.

最新人教版高中英语选修7Unit3知识点详解

Part 1. Warming up Part 2. Pre-reading, reading and comprehending 1.I thought，at the time，that this was just a story but then I witnessed it with my own eyes many time.我当时认为这只是个故事，但是后来我却多次亲眼目睹了这样的事情。 witness vt.目睹；目击；为……作证 句型witness to (doing/having done) sth.证明某事；证实做了某事 Police are appealing to any driver who may have witnessed the accident.警方正呼吁曾目睹这事故的司机出面作证。 The 1980s witnessed increasing unemployment throughout Europe.20世纪80年代是全欧洲失业日益加剧的年代。 Her principal was called to witness to her good character.她的校长被传唤来证明她优良的品质。The driver witnessed to having seen the man enter the building.司机作证说，他看到此人进入那栋建筑物。 n.证据；目击者 He has been a witness to a terrible murder.他目击了一起残忍的凶杀事件。 His good health is a witness to the success of the treatment.他身体健康证明这种疗法是成功的。 2.One afternoon I arrived at the station, as I was sorting out my accommodation, I heard a loud noise coming from the bay. 归纳总结 accommodation n.住处；停留处；和解，调解；(pl.)住宿，膳宿 (1)make accommodations for...为……提供膳宿 book accommodation at a hotel向旅馆预订房间 arrange sb.’s accommodation给某人安排住处 （2）accommodate vt.向……提供住宿（或膳宿）；容纳；为……提供空间；考虑到；顾及；帮忙；给……提供方便；顺应，适应（新情况） accommodate...to=adapt...to使……适应 accommodate oneself to=adapt (oneself) to适应；顺应 accommodate sb.with sth.=supply sb.with sth. 即学即用 （1）客座艺术家们只好自掏腰包支付食宿费用。 Guest artists have to pay for their own accommodations and meals. （2）旅馆房间不足。The hotel accommodation is scarce. （3）这幢房子可容纳两家人居住。The house can accommodate two families (4)银行将提供一笔贷款给你。The bank will accommodate you with a loan. (5)你必须使自己适应形势。You will have to accommodate yourself to the situation. 3.We ran down to the shore in time to see an enormous animal opposite us throwing itself out of the water and then crashing down again. 搭配opposite to…在……的对面；与……相反 I sat opposite to him during the meal. 吃饭的时候我坐在他的对面。 The result was opposite to what we expected. 结果与我们所预料的正好相反。see...doing... 看见……正在做……；throwing itself out of the water and then crashing down again在句中作宾语补足语，与宾语an enormous animal存在逻辑上的主谓关系，所以用现在分词形式。 I saw the little child crossing the street.我看见那个小孩儿在过马路。 (1)在感官动词see, hear, look at, notice, observe, feel, find等及使役动词have, make, leave, keep, get等后既可以用不定式也可以用动词-ing形式作宾语补足语。不定式(不带to)表示过程或动

九年级圆基础知识点,(圆讲义)

一对一授课教案 学员姓名：____何锦莹____ 年级：_____9_____ 所授科目：___数学__________ 上课时间：____ 年月日_ ___时分至__ __时_ __分共 ___小时 一、圆的定义： 1. 描述性定义：在一个平面内，线段OA绕它固定的一个端点O旋转一周，另一个端点A随 之旋转所形成的图形叫做圆，其中固定端点O叫做圆心，OA叫做半径． 2 圆的表示方法：通常用符号⊙表示圆，定义中以O为圆心，OA为半径的圆记作“O ⊙”，读作“圆O”． 3 同圆、同心圆、等圆： 圆心相同且半径相等的圆叫同圆；圆心相同，半径不相等的两个圆叫做同心圆；能够重合的两个圆叫做等圆. 注意：同圆或等圆的半径相等． 1. 弦：连结圆上任意两点的线段叫做弦． 2. 直径：经过圆心的弦叫做圆的直径，直径等于半径的2倍． 3. 弦心距：从圆心到弦的距离叫做弦心距． 4. 弧：圆上任意两点间的部分叫做圆弧，简称弧．以A B 、为端点的圆弧记作AB，读作弧AB． 5. 等弧：在同圆或等圆中，能够互相重合的弧叫做等弧． 6. 半圆：圆的任意一条直径的两个端点分圆成两条弧，每一条弧都叫做半圆． 7. 优弧、劣弧：大于半圆的弧叫做优弧，小于半圆的弧叫做劣弧．

8. 弓形：由弦及其所对的弧组成的图形叫做弓形． 1. 圆心角：顶点在圆心的角叫做圆心角．将整个圆分为360等份，每一份的弧对应1?的圆心 角，我们也称这样的弧为1?的弧．圆心角的度数和它所对的弧的度数相等． 2. 圆周角：顶点在圆上，并且两边都和圆相交的角叫做圆周角． 3. 圆周角定理：一条弧所对的圆周角等于它所对的圆心角的一半． 推论1：同弧或等弧所对的圆周角相等；同圆或等圆中，相等的圆周角所对的弧相等．推论2：半圆（或直径）所对的圆周角是直角，90?的圆周角所对的弦是直径． 推论3：如果三角形一边上的中线等于这边的一半，那么这个三角形是直角三角形． 4. 圆心角、弧、弦、弦心距之间的关系定理：在同圆或等圆中，相等的圆心角所对的弧相等， 所对的弦相等，所对的弦的弦心距相等． 推论：在同圆或等圆中，如果两个圆心角、两条弧、两条弦或两条弦的弦心距中有一组量相等，那么它们所对应的其余各组量分别相等． 一、圆的对称性 1. 圆的轴对称性：圆是轴对称图形，对称轴是经过圆心的任意一条直线． 2. 圆的中心对称性：圆是中心对称图形，对称中心是圆心． 3. 圆的旋转对称性：圆是旋转对称图形，无论绕圆心旋转多少角度，都能与其自身重合． 二、垂径定理 1. 垂径定理：垂直于弦的直径平分这条弦，并且平分弦所对的两条弧． 2. 推论1：⑴平分弦（不是直径）的直径垂直于弦，并且平分弦所对的两条弧； ⑵弦的垂直平分线经过圆心，并且平分弦所对的两条弧； ⑶平分弦所对的一条弧的直径，垂直平分弦，并且平分弦所对的另一条弧． 3. 推论2：圆的两条平行弦所夹的弧相等． 练习题；

2020年春人教新目标英语九年级英语unit3知识点分析与练习(无答案)

2020年春人教新目标英语九年级英语u n i t3知识点分析与 练习(无答案) -CAL-FENGHAI.-(YICAI)-Company One1

2020年春人教新目标英语九年级英语 Unit3 Could you please tell me where the restrooms are 知识点 一、重点短语： 1. 买一些杂志 get some magazines 2. 路过书店 go past the bookstore 3. 路过，经过 pass by 4. 走上前，朝….走去 walk up to 5. 对不起请再说一次 pardon me 6. 地下停车场 underground parking lot 7. 盼望，期待 look forward to 8. 在某人去…的路上 on one’s way to … 9. 在…..拐角处/角落里 on(in/at) the corner of…. 10. 向左/右转 turn left/right 11. 去三楼 go to the third floor 12. 抓住我的手 hold my hand 13. 在银行与超市之间 between the bank and the supermarket 14. 听起来完美 sound perfect 15. 沿着这条街向东走 go east along this street 16. 一个吃饭的好地方a good place to eat 17. 礼貌地请求帮助ask for help politely 18. 在不同的情景 in different situations 19. 电子邮件地址 e-mail address 20. 导入一个问题 lead in to a request 21. 匆忙地 be in a rush 22. 更好地规划我的时间plan my time better 二、重点句子： 讲一讲1（section A） 1.特殊疑问词引导的宾语从句： （1）宾语从句的连接词：特殊疑问句的疑问词通常有疑问代词what, which , who , whose和疑问副词 Where , when , why , how等。 如：he wondered what had happened to her. 他想知道她到底发生了什么事？ Could you tell me how I can get to the hospital 可以告诉我去医院怎么走吗 （2）宾语从句的语序：不管主句是陈述句还是疑问句，从句都是用“连词+陈述句语序的句子”， 句末是否用问号还是句号取决于主句是陈述句还是疑问句。 如：where does Mr. Liu live Do you know Do you know where Mr. Liu lives What were you doing at that time I want to know. I want to know what you were doing at that time . 2. ---Excuse me, Could you please tell me how to get to the bookstore? ---Sure, just go along Main Street until you pass Center Street. The bookstore is on your right, beside the bank..

英语八年级下册第三单元知识点总结

Unit 3. Could you please clean your room 一、短语动词 1、take out 带出去；取出；拔出；除掉动副词组 代词作宾语时必须放在两词之间。 2、come over 固定短语过来，顺便来访，拜访。后面加介词to，后接表示地点的名词作宾语。 拓展：take out of 把---从---取出/带出 3、hang →hung→hung hang out 闲逛；溜达。 4、throw down扔下；随手丢下其中throw可用作及物或不及物动词，意为扔，掷→threw→thrown 拓展：throw at向----扔去（带有攻击性）throw to 扔给---（不含恶 意）throw away扔掉 SectionB 1、、 2、take care of 照顾；照料。相当于look after后可接名词、(反身）代词作宾语。Take good care of相当于look after well 3、 二、动词用法 1、finish 及物动词完成后跟名词、代词或动词ing形式作宾语。拓展：与finish一样用法的动词或动词短语有：enjoy/look forward to/mind/have fun/practice/be busy/consider/feel like/give up 2、pass用作及物动词给；递；pass sb sth =pass sth to sb把某物

递给某人。走过、通过（考试等） 作不及物动词，（时间）过去，流逝 3、borrow sth from sb向某人借某物。非延续性动词Lend(lent;lent) sb sth=lend sth to sb借给某人某物。非延续性动词& Keep 由“保存”引申为“借”，延续性动词，可与时间段连用。四川-----Excuse me,can I_____your pen -----sorry,I have_____it to Bob. A.borrow;lend ;borrowed ;borrowed ;lent 4、hate及物动词厌恶；讨厌，表示一种感情或心理状态，不能用于进行时态。Hate sb/sth不喜欢某人或某物 Hate to do/doing sth 厌恶做某事（某一次或经常性的）相当于like的用法。 SectionB 1、invite及物动词邀请名词invitation 邀请；请帖。 Invite sb to +地点名词。邀请某人到某地。 Invite sb to do sth 邀请某人做某事。 2、￥ 3、make sb do sth 让某人做某事。 4、动词辨析： 单词主语常用结构含义 Spend(spent) 人sb spend time/money on sth Sb spend time/money doing sth

新人教版九年级unit3知识点详解

Unit 3 Could you please tell me where the restrooms are? 短语： 1. excuse me 劳驾，请原谅，打搅 2. get to到达 3. get some magazines 得到一些杂志 4. have dinner 吃晚餐 5. get some information about 获取有关…….的一些信息 6. a pair of一双，一对，一副 7. on one’s / the right在右边 8. turn left / right 向左/ 右拐 9. between…..and…..在…..和…..之间 10. go past经过，路过11. come on 快点儿，过来，加油 12. on one’s way to 在某人去…….的路上 13. a little earlier 早点儿 14. the shopping center购物中心 15. a good place to eat 一个吃饭的好地方 16. the corner of …….的角落/ 拐角处 17. in different situations在不同的情况下 19. on time准时，按时 20. look forward to 盼望，期待 21. pardon me 什么，请再说一遍 固定短语： 1. not…..until…… 直到…..才…… 2. Let’s do sth. 让我们做某事吧 3. start doing sth. 开始做某事 4. spend time doing sth. 花费时间做某事 5. thank sb. for (doing) sth. 为（做）某事而感谢某人 6. would like to do sth. 想要做某事 重点句型： 1. not…until… You never know until you try something. 凡事只有亲身经历了才能了解。 2. It seems (that)… It seems a rock band plays there every evening. 那里好像每天晚上都有乐队演奏。 3___ do you know... Excuse me, do you know where I can buy some medicine? 打扰了，请问哪里能买到药？ 4. Could you please tell me... ? Could you please tell me how to get to the post office? 你能告诉我去邮局怎么走吗？ 5 .1 wonder... I wonder where we should go next. 我想知道接下来该去哪里。 6. sb. suggest+ 从句 The clerk suggests they go to the... museum. 工作人员建议他们去……博物馆。

初三数学圆的基础知识小练习

初三数学圆的基础知识 小练习 Company Document number：WTUT-WT88Y-W8BBGB-BWYTT-19998

圆的基本知识 一、知识点 5、圆与圆的位置关系：（内含、相交、外离） 例3：已知⊙O 1的半径为6厘米，⊙O 2 的半径为8厘米，圆心距为d， 则：R+r=，R－r=； （1）当d=14厘米时，因为dR+r，则⊙O1和⊙O2位置关系是： （2）当d=2厘米时，因为dR－r，则⊙O1和⊙O2位置关系是： （3）当d=15厘米时，因为，则⊙O1和⊙O2位置关系是： （4）当d=7厘米时，因为，则⊙O1和⊙O2位置关系是： （5）当d=1厘米时，因为，则⊙O1和⊙O2位置关系是： 6、切线性质： 例4：（1）如图，PA是⊙O的切线，点A是切点，则∠PAO=度（2）如图，PA、PB是⊙O的切线，点A、B是切点， 则=，∠=∠； 7、圆中的有关计算 （1）弧长的计算公式： 例5：若扇形的圆心角为60°，半径为3，则这个扇形的弧长是多少 解：因为扇形的弧长=() 180 所以l=() 180 =(答案保留π) （2）扇形的面积： 例6：①若扇形的圆心角为60°，半径为3，则这个扇形的面积为多少

解：因为扇形的面积S= () 360 所以S= () 360 =(答案保留π) ②若扇形的弧长为12πcm ，半径为6㎝，则这个扇形的面积是多少 解：因为扇形的面积S= 所以S== （3）圆锥： 例7：圆锥的母线长为5cm ，半径为4cm ，则圆锥的侧面积是多少 解：∵圆锥的侧面展开图是形，展开图的弧长等于 ∴圆锥的侧面积= 知识点 1、与圆有关的角——圆心角、圆周角 （1）图中的圆心角；圆周角； （2）如图，已知∠AOB=50度，则∠ACB=度； （3）在上图中，若AB 是圆O 的直径，则∠AOB=度； 2、圆的对称性： （1）圆是轴对称图形，其对称轴是任意一条的直线；圆是中心对称图形，对称中心为． （2）垂径定理：垂直于弦的直径平分这条弦，并且平分弦所对的弧． 如图，∵CD 是圆O 的直径，CD ⊥AB 于E ∴=，= 3、点和圆的位置关系有三种：点在圆，点在圆，点在圆； 例1：已知圆的半径r 等于5厘米，点到圆心的距离为d ， （1）当d =2厘米时，有dr ，点在圆（2）当d =7厘米时，有dr ，点在圆 （3）当d =5厘米时，有dr ，点在圆 4、三角形的外接圆的圆心——三角形的外心——三角形的交点； 三角形的内切圆的圆心——三角形的内心——三角形的交点；

新版新目标英语七年级下册unit3知识点总结47105讲解学习

Unit 3 How do you get to school? Section A 1.How do you get to school？how疑问副词，如何,怎样，用什么手段询问交通工具 (1)take +a/an/the + 表示交通工具的名词，乘……去某地,是动词短语，在句中作谓语。 (2)by + 表示交通工具的单数名词或on/in + a/an/the/one’s+表示交通工具的单数名词，介词短语方式状语。 I walk to school.=I get to school on foot. walk = go ..on foot I ride my bike to schoo.=I get to school by bike.=I get to school on my bike. by bike= ride a / my bike I take the bus to schoo.=I get to school by bus=I get to school on the bus. Drive a car to work=go to work by car=go to work in a car by car = drive a / my car Fly to shanghai=go to shanghai by plane/air=take the/a plane to shanghai=go to shanghai on a/an/the plane. 【注意】by + 表示交通工具的单数名词时，名词前不能加任何冠词或者其他修饰词。 (3)walk/ride/drive/fly+to+地点名词，步行/骑自行车/开车/坐飞机去某地 2. get 到达常与to连用，表示目的地的词是副词here、there、home等时，不需用介词to。 get to Beijing get there get home reach 到达其后直接接宾语 arrive in+大地点arrive at +小地点后接副词不需介词 3. How far is it from A to B?=How far is B from A? 从A到B有多远？ 答语(1)It’s…meters/miles/kilometers(away) from... 有……米/英里/千米（远） (2)It ‘s about ten minutes’ walk/ ride. 大约有十分钟步行/骑车的路程。 (3)It ‘s far/near. be far from, away from, from ..to . be far from, 离…远My school is far from my home. 具体路程+away from My school is 10 kilometers away from my home. from…to…从…到…It’s 10 kilometers (away) from my school to my home. A +be +路程距离from + B My school（A）is 10 kilometers from my home（B）. 4.How long does it take you to get to school? how long 提问时间，多久 How long have you been in America?For two years. 5. take spend cost pay (1)spend 主语必须是人 Sb spend some time/money on sth 某人在某事或某物上花费时间/钱 Sb spend some time/ money (in)doing sth 某人花时间/金钱做某事 (2)cost主语只能是事情。sth cost sb some money某物花费某人多少钱 The skirt costs her 200 yuan. (3)pay主语必须是人sb pay some money for sth.某人为某物付款/花费多少钱 He paid 1000 yuan for the TV set. (4)take 主语必须是it It takes sb some time( money) to do sth. 做某事花费某人多长时间 It took him seven days to make the big cake. 6. around (1)环绕；围绕；绕过The earth moves around the sun. (2)在…四周There are many trees around the playground. (3)在…的附近Is there a park around here ? (4)大约=about 常与数字连用at about/around 8 o’colck

初三数学圆知识点复习专题经典

《圆》 一、圆的概念 概念：1、圆可以看作是到定点的距离等于定长的点的集合； 2、圆的外部：可以看作是到定点的距离大于定长的点的集合； 3、圆的内部：可以看作是到定点的距离小于定长的点的集合 轨迹形式的概念：1、圆：到定点的距离等于定长的点的轨迹就是以定点为圆心，定长为半径的圆； （补充）2、垂直平分线：到线段两端距离相等的点的轨迹是这条线段的垂直平分线（也叫中垂线）； 3、角的平分线：到角两边距离相等的点的轨迹是这个角的平分线； 4、到直线的距离相等的点的轨迹是：平行于这条直线且到这条直线的距离等于定长的两条直线； 5、到两条平行线距离相等的点的轨迹是：平行于这两条平行线且到两条直线距离都相等的一条直线。 二、点与圆的位置关系 1、点在圆内?d r ?点A在圆外； 三、直线与圆的位置关系 1、直线与圆相离?d r >?无交点； 2、直线与圆相切?d r =?有一个交点； 3、直线与圆相交?d r +； 外切（图2）?有一个交点?d R r =+； 相交（图3）?有两个交点?R r d R r -<<+； 内切（图4）?有一个交点?d R r =-； 内含（图5）?无交点?d R r <-； A

r R d 图3 r R d 五、垂径定理 垂径定理：垂直于弦的直径平分弦且平分弦所对的弧。 推论1：（1）平分弦（不是直径）的直径垂直于弦，并且平分弦所对的两条弧； （2）弦的垂直平分线经过圆心，并且平分弦所对的两条弧； （3）平分弦所对的一条弧的直径，垂直平分弦，并且平分弦所对的另一条弧 以上共4个定理，简称2推3定理：此定理中共5个结论中，只要知道其中2个即可推出其它3个结论，即： ①AB 是直径 ②AB CD ⊥ ③CE DE = ④ 弧BC =弧BD ⑤ 弧AC =弧AD 中任意2个条件推出其他3个结论。 推论2：圆的两条平行弦所夹的弧相等。 即：在⊙O 中，∵AB ∥CD ∴弧AC =弧BD 例题1、 基本概念 1．下面四个命题中正确的一个是（ ） A ．平分一条直径的弦必垂直于这条直径 B ．平分一条弧的直线垂直于这条弧所对的弦 C ．弦的垂线必过这条弦所在圆的圆心 D ．在一个圆内平分一条弧和它所对弦的直线必过这个圆的圆心 2．下列命题中，正确的是（ ）． A ．过弦的中点的直线平分弦所对的弧 B ．过弦的中点的直线必过圆心 C ．弦所对的两条弧的中点连线垂直平分弦，且过圆心 D ．弦的垂线平分弦所对的弧 例题2、垂径定理 1、 在直径为52cm 的圆柱形油槽内装入一些油后，截面如图所示，如果油的最大 深度为16cm ，那么油面宽度AB 是________cm. r R d 图4 r R d 图5 r R d O E D C A O C D A B

(完整word版)人教版九年级英语unit3知识点及习题,推荐文档.docx

Unit3 Could you please tell me where the restrooms are ? 短： 1. excuse me ，原，打 2. get to 到达 3. get some magazines 得到一些志 4. have dinner 吃晚餐 5. get some information about 取有关??.的一些信息 6. a pair of 一双，一，一副 7. on one ’ s / the right在右 8. turn left / right向左 / 右拐9. between ? ..and 在??.. ..和? ..之10. go past ，路11. come on 快点儿，来，加油 12. on one ’ s way在to某人去??.的路上13. a little earlier 早点儿 14. the shopping center 物中心15. a good place to eat一个吃的好地方16. the corner of的??角落. / 拐角17. in different situations在不同的情况下19. on time 准，按20. look forward to 盼望，期待 21.pardon me 什么，再一遍短 句型： 1.not? ..until??直到? ..才?? 2.Let ’ s do sth.我做某事吧 3. spend time doing sth.花做某事 4. thank sb. for (doing) sth.（做）某事而感某人 5. would like to do sth.想要做某事 6.It seems (that)?It seems a rock band plays there every evening. 那里好像每天晚上都有演奏。 7___ do you know...Excuse me, do you know where I can buy some medicine? 打了，哪里能到？ 8.Could you please tell me... ? Could you please tell me how to get to the post office? 你能告我去局怎么走？ 9 .1 wonder...I wonder where we should go next. 我想知道接下来去哪里。 10.sb. suggest+ 从句The clerk suggests they go to the... museum. 工作人建他去?? 博物。 知点： 1. get a dictionary得到一本字典get v. 得，得到、、到达 get sb.sth. = get sth for sb. 某人拿来某物。 get up起床get over克服、恢复get on / off 上 /下 get along / on with与? ..相get back 回来，取回 2.Go to the third floor.去三楼（美式英） 英美英表达楼的不同： 美式：on the first / the second /the third floor在一、二、三楼 英式：on the ground / first / second floor在一、二、三楼 1） The building has ______ floors and our classroom is on the ______ floor. A. four; four B. fourth; fourth C. fourth; four D. four; fourth 3. ① 路常用的句子： How can I get to ...?Do you know the way to...? Is there ...near here? Which is the way to ...?Where is...? Do you know where?is ?Can you tell me how can I get to?? Could you tell me how to get to.. .?Could you please tell me how to get to？ ② Can/Could/Will/Would you please do sth?表示十分客气地事情，用于 礼貌地提出求，气委婉，其后跟原形。 1） Could you please ________ us Mary’s telephone number? A. to give B. give C. giving D. to giving 2）---Could you please tell me where the restrooms are? ---____________ A. Yes, I can. B. I could. C. Sure. D. I could tell you. 3）— Sorry to trouble you, but could you please help me carry this heavy box? — ______. Where do you want to put it? A. Sorry, I can’t B. I hope not C. Of course D. Good idea 4）【2014 重】 --- Could you please tell me ________?--- Two months ago. A. when did you take this photo B. when you took this photo C. where did you take this photo D. where you took this photo 4. turn left / right left adv 向左 turn to the left / right向左/右left n左 turn left / right at the序数crossing/turning在第几个路口向左/ 右 on one ’ s right/left在某人右 /左on the right/left在右/左 go straight 向前直走go along=walk along=go down/up沿着.....向前走 go east/west/norht/south along... 沿着 .....向 /西 /北 /南走 ： 1） Go straight until you see a museum ______ your left. A. with B. at C. on D. from

高中英语必修二第三单元知识点总结

2 watch 26. by 27. that 28. share 29. well 30. of 31. race 32. in 33. in 34. after 35. with 36. over 3. from on 4. from on 5. as a of 6. with the that 7. result 8. result 9. solve a 10. reach a goal = 11.be of great value= be very be of great use = be very be of great in terest = be ver 12. make the b est of =make the 13. come 14. give (to sb.) 15. give 16. give doing sth. 17. in the way= in 18. in way 19. in way 20. by of 21. by the 22. with one help = with 23. do with 24. watch 25. out 26. go 27. so 28. sth. with sb. 29. as as 30. high quality 31. human 32. fact 33. a way 34. all 35. deal 36. watch 1. com mon 2 .practice 3. now 4 1. have someth ing in 2. comma n a goal = way _____ a goal be of no value= be be of no use =be be of no in terest = be of of deal with =take full of .the n 5. result 6. result 7. from 8. in 9. puzzle 10. obta in=achieve 11. valuable valueless useful useless in teresti ng unin terest ing 12. most adva ntage 13. true 14. in 15. out 16. up 17. one s18. this 19. no 20. way 21. way 22. the help 23. what how 24. for 25.

人教版英语九年级Unit 3-4知识点重点

Unit 3__________________________________________________________________ Topic:______________________ 1.打扰一下 2.向左/右转 3.在某人的左边 4.沿着…走 5.经过，路过 6.在银行旁边 7.得到一些信息8.去二楼 9.尝试骑乘项目10.原谅我 11.打算做某事12.意味者做某事 13.在那边14.匆忙做某事 15.握住我的手16.建议做某事 17.在某人去某地的路上 18.以一种不同的方式19.顺便提一下 20.走上前去21.在门口 22.在那时23.一个附近的餐馆 24.礼貌地寻求帮助25.请求sth 26.在不同的情况下 27.引入一个请求28.和sb讲话 29.与sb交流 30.请求request用法： 31.换零钱32.匆匆忙忙地 1.你能告诉我最近的银行在哪吗？ 2. 你知道书店今天什么时候关门吗？ 3. 不尝试你永远不知道。 4. 我想知道哪有好吃的地方？ 5.对不起，我不确定如何到达那。 6. 我能问一下刚才发生了什么吗？ 7.然而，学习在不同的情况下如何使用正确的语言是重要的。 _________,it is important ______ ________ how _____ ______the right language ____ _________ ___________. Unit 4____________________________________________ 句型转换：1否定句 2.一般疑问句 3.特殊疑问句 1.在游泳队 2.有时，时常 3.如此好的一个主意 4.在考试中取得好成绩 5.变红 6.开始，着手(做sth) 7.解决，处理8.敢于做sth 9.总是，一直10.很多，大量11.对…小心12.和朋友出去闲逛 13.准备好做sth 14.成功之路15.继续奋斗 16.至少17.公开做演讲 18.对…很紧张19.找工作 20.缺席21.考试失败 22.决定做某事 23.建议做sth 建议sb做sth 24.亲自25.以…而自豪 26.保持沉默27.把…送到… 28.对…有影响29.公开地30.做个自我介绍 1.看人们怎么改变了很有趣。 2.她过去很害羞并且开始唱歌解决害羞。 3.你必须准备好放弃你的正常生活。 4.你不能想象成功之路是多难！ 5.只有很少数的人能成功。 6.他过去戴眼镜，不是么？ 7.有时他逃课并且考试不及格。 8.我的生活在过去的几年中已经改变了很多。