(共19张PPT)
单元语法聚焦一
School and Friends
Unit 1
单元语法聚焦一
[be动词(am, is, are)的用法]
教材典句 语法探究 实战演练
Unit 1 School and Friends
1.Hello, I’m Li Ming!
你好,我是李明!
2.She’s in Class Five.她在五班。
3.They are very nice.他们非常友好。
4.—Is it a ruler
—No, it isn’t.
“它是一把尺子吗 ”
“不,它不是。”
5.What’s 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单词:am, is和are。am, is和are是be动词的三种形式。本单元我们重点学习be动词的用法。
形式 适用的人称 缩写
am I I’m
is he he’s
she she’s
it it’s
this/that/ his name… that’s/his name’s…
(this is 不能缩写)
are you/we/they you’re/we’re/they’re
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I’m。
I am/I’m a girl. 我是一个女孩。
2.主语是第三人称单数、单数可数名词或不可数名词时,be动词用is。he is, she is, it is和that is可分别缩写为he’s, she’s, it’s 和that’s, this is不可以缩写。
He is/He’s my teacher. 他是我的老师。
Her name is/Her name’s 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 is=what’s, there is=there’s等。be动词也可与not缩写,例如:is not=isn’t, are not=aren’t。 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。
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)或复数可数名词(seven coats, many pencils等)时,be动词用are。
They are my friends. 他们是我的朋友。
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。
记忆口诀
Ⅰ.用be动词的适当形式填空
1.What your name
2.I fine, thanks.
3.Wang Fang and I in the library.
4.How your mother
5.The girl with Mr. Ma Sara.
is
am
are
is
is
6.Simon and his two friends in Class Seven.
7.Their rulers white.
8.The pen Li Ping’s.
9.— you a teacher
—No, I a student.
10.I a boy. Yiyi a girl.
are
are
is
Are
am
is
am
Ⅱ.单项选择
11.You fine, and I fine, too.
A.is; are B.are; am
C.are; is D.am; is
B
12.This my friend.She a student.
A.are; is B.is; is
C.am; is D.is; am
B
13.— Lily and Lucy from Canada
—Yes.
A.Am B.Is
C.Are D.Be
C
14.—Are they your classmates
—No, .
A.this isn’t B.I’m not
C.they aren’t D.they are
C
15.Here my list.
A.be B.is
C.am D.are
B
Ⅲ.按要求完成下列各题,每空一词
16.I am from China.(改为一般疑问句)
China
17.She is my English teacher.(改为否定句)
my English teacher.
Are
you
from
She
is
not
18.This is a red pen.(改为复数句)
.
19.They are my good friends.(改为一般疑问句)
good friends
20.Those are our desks. (对画线部分提问)
those
These
are
red
pens
Are
they
your
What
are