七年级上册英语第3单元知识点梳理(共10页).doc

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1、精选优质文档-倾情为你奉上Unit3 Is this your pencil?话题：教室中的物品教学目标：询问物品的所属 学生学会如何写寻物启事和失物招领启事重点：含有be动词的一般疑问句难点：含有be动词的陈述句变一般疑问句 一般疑问句的肯定与 否定回答知识点：1. Is that your schoolbag? 这是一个一般疑问句，一般疑问句是对一件事情或某种情况是否真实提出疑问的句子。be 动词的一般疑问句，方法是把be 移到主语前面，也可说成是移到句首。当有I的时候改为you, 有my的时候改为your, 再把后面的成分加上去，简称： 调（改）加。回答一般疑问句，肯定回答，先Yes,再

2、写一般疑问句中的主语+be动词。否定回答：No，再写一般疑问句中的主语+be动词加not.注意：1） 在肯定的简略回答中，主语不能与be动词缩写在一起，且主语应有代词主格充当。 -Is Li Lei your friend? 李雷是你的朋友吗？ -Yes, he is. 是的，他是。2） 在否定的简略回答中，be动词常与Not缩写在一起，一般分不开。 -Is she a doctor? -No, she isnt.3） am和not不能缩写。4） 两缩写不能同时使用。They are not my rulers. （不能缩写成Theyrent）它们不是我的尺子。Is the man a sci

3、ence teacher? Yes, he is. / No, he isnt.Are Marys new dresses colorful? Yes, they are. / No, they arent.Is mother in the kitchen then? Yes, she is. / No, she is not.Are you at home? Yes, I am. / No, I am not.练习： 把下列各题变成一般疑问句。1. This is a coat. _ 2. That is an apple. _3. She is a beautiful girl. _4.

4、He is clever. _5. These are my friends. _6. I am nine-year-old. _7. I am Lily. _8. They are cars. _9. Those are desks. _10. It is a cat. _ 给出下列一般疑问句的肯定以及否定回答。1. Is this a coat? 肯定回答：_ 否定回答：_2. Are those cars? 肯定回答：_ 否定回答：_3. Are you friends? 肯定回答：_ 否定回答：_4. Is she a student? 肯定回答：_ 否定回答：_5. Is he cl

5、ever? 肯定回答：_我总结出来的规律是：肯定回答Yes, 主语+be否定回答No, 主语+be+not对Are you 肯定回答用I am 否定回答用I am not. 否定回答：_6. Are you nine-year-old. 肯定回答：_ 否定回答：_7. Is she a beautiful girl? 肯定回答：_ 否定回答：_8. Are these your friends? 肯定回答：_ 否定回答：_9. Is that an apple. 肯定回答：_ 否定回答：_10. Is he at home? 肯定回答：_ 否定回答：_指示代词this, that,其相对应的复

6、数为these those this指代较近的一个人或物that指代较远的一个人或物these指代较近的多个人或物those指代较远的多个人或物注意：1） 距离说话近的人或物用this,距离说话人远的人或物用that. This is a flower. 这是一朵花。 That is a tree. 那是一棵树。2） 放在一起的两样东西，先说this, 再说that. This is a pen. That is a pencil.3） this is 不能缩写，that is 可以缩写。4） 在回答this或that作主语的一般疑问句时，要用it代替this, that.2. no 与not

7、no副词，“不，不是”通常用于一般疑问句和反意疑问句的否定回答，反义词是Yes.形容词，“没有”no+名单=not a/an+名单mo+可数名复=not any+名复/不可数名not副词，“不”谓语be动词，情态动词，助动词后构成否定，不能单独使用。I have _ money. I am _ a good mother. It is _ a cat. Its a hat. -Are you English? -_. Im Chinese. -are you English? -_, Im _.3. 物主代词人称单复数形容词性物主代词名词性物主代词第一人称单数mymine复数ouroursel

8、ves第二人称单数youryourself复数youryourselves第三人称单数hishisherhersitsits复数themthemselves物主代词分为名代与形代，名代常用来代替前面提到的名词，相当于“形容词性物主代词+名词”，名词性物主代词也可用在of后面作定语，相当于of+名词所有格。形容词性物主代词一般作定语，修饰名词，不能独立使用。1._ is a teacher. We all love _.(她)2. _ is a good boy. Lets play with _. (他)3. _is in the classroom. You can find _ in yo

9、ur desk.(它)4. -_ are very smart today. -Thank _ very much. (你)5._ cant find my ruler. Please help _write the lost and found. (我)6. I cant find _(我的) dictionary. Can I use _(你的)？7. George lost _(他的) pen. 8. The notebook isnt mine . Its _(她的).9. -Mike, is this _(你的)picture? -Yes, it is. 10. This is _(

10、她的) ID card. _(我的)is in my schoolbag. 3. Thank you.这是一个表达谢意的礼貌用语，不仅用在陌生人之间，在家庭成员，朋友家间因对方给了帮助或者表示关心，夸奖，赞美，称赞，都会用到这句话。thank you for意为“为感谢你”其中for为介词，后面可接名词，代词，或动名词，常见的短语有thank sb. for sth. thank sb. for doing sth.区分thank与thanks thank 及物动词 Thank you very much. Thank you for teaching me English. thanks 名

11、词 Thanks a lot. Thanks for teaching me English.Thank you _ your letter(信) 。 A. for B. to C. at_ for teaching me so(这样)well. A. Thanks you B. Thanks C. Thank 4. What about this dictionary? 这本词典呢？what about意为“如何，好吗，怎么样”类似短语还有how about. 征求对方的意见或在上文的基础上问相同问题以避免重复。 后接名词，代词或动词的ing形式。 What about a cup of t

12、ea? How about a cup of tea?我喜欢北京的秋天， 你呢？ I like the autumn in Beijing, _ _ you? How about this book? (改同义句) _ _ this book?What about _(go) shopping? 5. I must find it. 我必须找到它。 must情态动词，意为“必须，一定”情态动词特征1) 有一定的词义，但不完整，不能单独作谓语，它们和实义动词或连系动词一块连用，构成谓语。He must be there.2) 除have to外，其他没有人称和数的变化。3) 有些情态动词没有过去

13、式，如must，有些有过去式，如can-could, may-might, shall-should, will-would, have-had to.4) 情态动词后接动词原形。5) 情态动词不能表示正在发生或已经发生的事情，只表示期待，估计某事的发生，或说话者对某一动作或状态的态度。Mary can speak a little English.We must hurry up,情态动词的否定形式一般在他们的后面直接加not7. Call me at 685-6034.请打电话685-6034找我。call及物动词，意为“打电话”常见短语call sb. call +电话号码call sb

14、. at+电话号码Call my father _994-5678. A. in B. with C. to D. at Ask the teacher _ the answer(答案)、 A. to B. for C. of D. in 请拨打456-1234找小明。Please _ Xiaoming _ 456-1234.我向爸爸要了一辆自行车。 I _ my father _ a bike.8. A set of keys 一串钥匙a set of+名复，表示一串一列一套，谓语动词用单数。of为介词，常用来表示所属关系。拓展：名词的格的构成(1)表示人或其它有生命的东西的名词常在词尾加s

15、。如：Childrens Day(儿童节), my sisters book(我姐姐的书)(2)以s或es结尾的复数名词。只在词尾加。如：Teachers Day(教师节)(3)有些表示时间、距离以及世界、国家、城镇等无生命的名词,也可在词尾加s. 如：todays newspaper(今天的报纸), ten minutes break(十分钟的课间休息), five minutes walk五分钟的步行，Chinas population(中国的人口).(4)无论表示有生命还是无生命的东西的名词,一般均可用介词of短语来表示所有关系。如：a friend of mine.我的一个朋友。 表示

16、无生命东西的名词的所有关系，一般使用与of构成的短语结构。 例如： the front door of the house 那屋子的前门 There is a map of the world on the back wall of our classroom.我们教室的后墙上有一张世界地图。9. How do you spell it? 这是一个特殊疑问句，由特殊疑问词“how”+一般疑问句，用来询问做某事的方式。how的常见用法：1）How +助动词+主语+其他？构成的特殊疑问句。 2）How “如何，怎样”询问身体健康状况，一般生活情况， 天气， 方式等。 3）How do you do

17、 ? 你好！ 用语初次见面。 回答也用How do you do ? 4）常与how搭配构成的特殊疑问词组，用来提问的有：how old询问年龄，how much用来询问价格，how much/many询问数量等。do为助动词，用来帮助实义动词构成疑问句。在一般现在时态中，当句中主语为第三人称，用do的第三人称单数形式does. do和does没有实际意义，只是结构上构成一般疑问句。How _ you ? A. are B. do C. is How _ you spell answer? A. are B. do C. is How _ you _ ? A. do , are B. are,

18、 do C. do , do How _ the weather (天气) today？ A. are B. is C. do -What color is it ? -_. A. Yes, it is B. No, it isnt . C. Its yellow.My father is fine. _ _ your father?随堂练习：一 把下列句子分别变为一般疑问句1. Her family name is King._ 2. My phone number is 456-6226._ 3. Im Jenny._ 4. This is his pencil sharpener._ 5

19、. Lu Ping and Xia Yu are my friends._ 二 用所给词的适当形式填空1. _(be) this her backpack.2. _answer is right (I).3. _(be) your ID card Number Three?4. Your name_(be) nice.5. Nice_(meet) you.6. Is this_(you) English book?7. We _(be) good students.8. _(she) family name is Bush.9. What is_(he) first name?10. That

20、 is_(I) ID card.三 选择填空( )1. This _ her watch. A. not is B. not are C. isnt D. arent( )2.Call Jenny _345-8008,please. A. at B. in C. to D. an( )3.Whats that _ English.Its a right. A. at B. in C. an D. to( )4. Is this _ pear? No, it isnt. Its _egg./ A. a, an B. an, a C. a, a D. an, an( )5. Whats that?

21、_ a ruler. A. It B. Its C. Its D. Thats( )6. Is this an eraser?_,it_. A. Yes, isnt B. Yes, is C. No, is D. No, not( )7.There is an _ in the word “watch”. A. t B. w C. c D. h( )8. Is Becky her name?Yes, _is. A. it B. she C. he D. her( )9.This is not my notebook . Ask Jim. I think its _ cup. A. your B

22、. her C. their D. his( )10. Is this your backpack?Yes, it is._ A. Thank you B. Youre welcome C. OK, please D. Excuse me( )11. Is this her book?_, it isnt. A. Yes B. Not C. OK D. No( )12. How _you spell it?E-R-A-S-E-R. A. is B. at C. to D. of( )13.Her computer game is_ the lost and found case. A. in

23、B. at C. to D. of( )14. _, is this your key? Yes, it is. A. Hi B. thanks C. Excuse me D. OK( )15. your backpack is nice. _. A. Thats all right B. OK, its nice C. No, isnt nice D. Thank you五 写出下面单词的复数形式1. parent _ 2. pencil _ 3. clock _4. watch _ 5. dictionary _ 6. cousin _六 把下面句子由单数形式变为复数形式1. This is his uncle._2. That girl is my cousin._3. Is it your dictionary?_4. The ID card is in the lost and found case._5.Whats that in English? Its an apple. _ _专心-专注-专业