七年级英语上册Unit1《This is me》语法解读
教材重要语法知识链接及典例解读
一、few adj. & pron.不多;很少
动词be的一般现在时
教材原句
①I am happy.我很高兴。
②You are not happy.你(们)不高兴。
③Are they happy?他们高兴吗?
–Yes, they are./No , they are not.是的,他们高兴。/不,他们不高兴。
教材原句语法链接
1.概述
在英语中,常使用动词be的一般现在时谈论事实和状态。而动词be有三种形式:am, is, are。
I am from China.我来自中国。
Heis12yearsold.他十岁。
We are very happy.我们非常高兴。
2.动词be的用法
①如果主语是第一人称1时,动词be用am。
Iama student.我是一名学生。
②如果主语是you,they或者名词复数(两个或两个以上的人或事物)时,动词be用are。
Are you Simon?你是西蒙吗?
They are my classmates.他们是我的同学。
Tom and Lily are good friends.汤姆和莉莉是好朋友。
③如果主语是单数名词、不可数名词或he、she.it时,动词be用is。
Mr Wu is our English teacher.吴老师是我们的英语老师。
Note:在非正式行文中,动词be与前面主语可以缩写。
Iam =I’m You are = You’re
We are = We’re They are = They’re
She is = She’s He is =He’s It is=It’s
3.动词be的句式结构
口诀巧记忆
动词be的用法口诀
我用am,你用are,is用于他/她/它;单数名词用is,复数全部都用are;
变否定,很容易,be后not莫忘记;变疑问,be提前,句末问号莫丢弃;
否定疑问任你变,句首大写莫迟疑。
Note:
①动词be要与主语保持一致。
The little dog is very cute.这只小狗很可爱。
These apples are big and red.这些苹果又大又红。
②在非正式行文中,动词is/are与not可以缩写。
is not -isn’t are not – aren’t
She isn’t tall,她个子不高。
They aren’t in the classroom.他们不在教室里。
典例解读
1.——Jim, are these your keys?
—— .They’re hers.
A. Yes, it is B. No, it isn’t C. Yes, they are D. No, they aren’t
2.He is really busy today.(改为一般疑问句)
____ _____ really busy today?
3.She is reading in the library. (改为一般问句,并进行肯定、否定回答)
________ she ________ in the library?
________, she ________. /
________, ________ ________.
4.are, brothers, my, these(连成句子)
________________________________________________
综合提升变式训练
一、单项选择
1.________ Dr. Mortimer a tall, thin man ________ glasses?
A.Is;wears B.Does;wear C.Is;with D.Does;with
2.Mary ________ late for school. Now she is in the classroom.
A.aren’t B.doesn’t be C.isn’t D.don’t be
3.— What ________ on the shelf? — Some books are on the shelf.
A.has B.are C.is D.are there
4.—Look! Some breadon the table. —Yes, some apples _______ on the table, too.
A.is; is B.is; are C.are; is
5.Tom and I ________ good friends.
A.is B.are C.am D.be
6.I ________ not Lily. My name ________ Lucy.
A.am; is B.is; is C.am; am D.is; are
7.I _______ Jenny Brown.
A.am B.is C.are D.it
8.Kate and I ________ in the same class.
A.am B.is C.are
9.Alan ________ my friend. He and I ________ in NO. 10 Middle School.
A.is; am B.is; are C.are; are
10.I ________ in Class 1 and Betty ________ in Class 3.
A.are; is B.am; are C.am; is
11.—Is he your English teacher? —________.
A.No, he isn’t B.No, he is C.Yes, he isn’t
12.I ________ Linda and she ________ Genny .
A.am; am B.is; is C.am; is D.is; are
13.— ________ they? —They are my friends.
A.Who B.Who’re C.What D.What’re
14.—Is Eric Linda’s ________? —Yes. They are in the same class.
A.teacher B.uncle C.father D.classmate
二、用所给单词的正确形式填空
15.That ________(not be) my eraser. My eraser is here.
16.My sister’s name _____________(not be) Angel.She is Lily.
17.— What time ________ (be) school over? — At about five o’clock.
…………
参考答案
典例解读
1.D
解析
根据”They’re hers.”可知设空处是否定回答,再根据下文中的They’re,故选D项。
2.Is he
【详解】
根据主语和谓语是He is 可知此处变为一般疑问句,把Is提前位于句首,故为(1). Is (2). he 。
3.Is reading Yes is No she isn’t
【详解】
句意:她正在图书馆里读书。要将原句改为疑问句,只需将is提至句首并大写首字母。一般疑问句作答时,肯定回答应用“Yes, 主语+ is.”和否定回答应用“No, 主语+ is not.”。主语为she,故填Is;reading;
…………
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