单元语法聚焦一　.docx

1、单元语法聚焦一be动词(am, is, are)的用法1Hello, Im Li Ming!你好，我叫李明！2Shes in Class Five.她在五班。3They are very nice.他们都非常友好。4Is it a ruler?No, it isnt.“它是一把尺子吗？”“不，不是。”5Whats that？那是什么？通过观察这些教材中的句子，我们可以看到这三个词：am, is和are。am, is和are是be动词的三种形式，意为“是”。本单元我们重点学习be动词的用法。be动词形式适用的人称缩写amIImishehessheshesititsthis/that/his na

2、methats/his names(this is不能缩写)areyou/we/theyyoure/were/theyre通过表格可以看出：be动词的形式随主语的变化而变化，具体如下：1主语是第一人称单数I(我)时，be动词用am, I am可缩写为Im。例如：I am/Im a girl. 我是一个女孩。2主语是第三人称单数、可数名词单数或不可数名词时，be动词用is。he is, she is, it is和that is可分别缩写为hes, shes, its 和thats，this is不可以缩写。例如：He is/Hes my teacher. 他是我的老师。Her name is/

3、Her names Jenny. 她的名字是詹妮。注意：(1)be动词还可与其他词缩写，例如：what iswhats, there istheres等。be动词也可与not缩写，例如：is notisnt, are notarent。 但am与not 不能缩写。(2)句中有be动词时，变否定句时，在be动词后加not；变一般疑问句时，把be动词提到主语之前。例如：I am not in Class One. 我不在一班。Is this your book? 这是你的书吗？3主语是you(we, they, she and I, these等)或可数名词复数(seven coats, many

4、 pencils等)时，be动词用are。例如：They are my friends. 他们是我的朋友。记忆口诀我(I)是am, 你(you)是are, is连着他(he)她(she)它(it)，单数is, 复数are，不要混淆要牢记。.用be动词的适当形式填空1What _ your name?2I _ fine, thanks.3Wang Fang and I _ in the library.4How _ your mother?5Danny and I _ in the library.6This _ my picture.7Their rulers _ white.8The pen

5、 _ Li Pings.9_ you a teacher?No, I _ a student.10I _ a boy. Yiyi _ a girl.单项填空()1.You _ fine, and I _fine, too.Ais; areBare; amCare; is Dam; is()2.This _ my good friend. She _ a student.Aare; is Bis; isCam; is Dis; am()3.How _ her friends?Aare BamCis Dbe()4._ Lily and Lucy twins?Yes.AAm BIsCAre DBe(

6、)5.Are they your classmates?No, _Athis isnt BIm notCthey arent Dthey are()6.“I” _ a letter(字母) in English.Ais Bam CareDbe()7.Are you Wang Hong?_. Im Jenny.ANo, Im notBNo, I amCI am Wang HongDYes, Im()8.Miss Gao _ our teacher. She _ tall.Aare; are Bare; isCis; is Dis; are()9.They _ new students. We_

7、not new.Aare; are Bare; amCare; is Dam; is()10.Here _ my list.Abe BisCam Dare.按要求完成下列各题，每空一词1I am from China.(改为一般疑问句)_ _ _ China?2She is my homeroom teacher.(改为否定句)_ _ _ my homeroom teacher.3This is a red pen.(改为复数句)_ _ _ _4They are my good friends.(改为一般疑问句)_ _ _ good friends?5Those are our desks.(

8、改为否定句)_ _ _ our desks.话题归纳1.Greetings and Saying Goodbye(问候与告别)(1)问候。英语中，问候有多种表达方法：How do you do？(初次见面常用语。答语：How do you do？)How are you？(比较熟悉的人之间的常用语。答语：Fine, thank you.)Hello！(口语。答语：Hello！)Hi！(口语。答语：Hi！)Good morning/afternoon/evening/night.(早、中、晚问候语。答语：Good morning/afternoon/evening/night.)(2)告别。英语

9、中，告别也有多种表达方法：Goodbye！(答语：Goodbye/Byebye/Bye！)See you tomorrow！(答语：See you tomorrow！)See you later！(答语：See you later！)2Introductions(介绍)(1)英语中，向他人介绍某人时，常用“This is”这一句型。例如：Mum，this is my friend.妈妈， 这是我的朋友。(2)已被介绍认识的双方常用“Nice to meet you.”(见到你很高兴。)来相互表示友好，可以用“How do you do？”(你好)来互相问候。3Giving thanks(表达感谢)英语中，表达感谢常用Thanks./Thank you(very much)答语有多种。例如：Youre welcome./Thats OK./Thats all right./My pleasure./Not at all./Its nothing./No problem.详解详析【实战演练】.1.is2.am3are4.is5are6.is7are8.is9Are; am10.am; is .15BBACC610AACAB.1.Are you from2She is not3These are red pens4Are they your5Those are not