内容正文:
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语法专练
重难点语法强化练习
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一、be动词
一、考点用法梳理
在一般现在时的句子中,系动词be 有三种形式:am, is和are。系动词be的形式随主语的数而有所变化。
主语 be动词的形式
I am
he/she/it is
we/they/you are
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二、考点清单解读
一般现在时中be动词的词形变化
be动词形
式
主语 肯定形式 否定形式
正常形式 缩写形式 注意 正常形式 缩写形式
I I am I'm be动
词后
面没
有词
时,
不用
缩写
形式 I am not I'm not
we/they/yo
u we/they/you
are we're/they're/y
ou're we/they/you are
not we/they/you
aren't
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be动词形
式
主语 肯定形式 否定形式
正常形式 缩写形式 注意 正常形式 缩写形式
两个以上
的人或物
或名词复
数 Lily and
Mary/brothers
are 无 be动
词后
面没
有词
时,
不用
缩写
形式 Lily and
Mary/brothers
are not Lily and
Mary/brothers
aren't
he/she/it he/she/it is he's/she's/it's he/she/it is not he/she/it isn't
单数名词
或不可数
名词 my mother
is/money is my
mother's/mone
y's my
mother/money is
not my
mother/money
isn't
续表
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三、be动词用法小口诀:
我(I)是am,你(you)是are,is去找3个他(he)/她(she)/它(it),单数is,复数are。
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1.I ____ in Class Four Grade Seven. (be)
am
2._____ you from Shanghai? (be)
Are
3.Who ___ the man over there? (be)
is
4.Betty and Mike ____ in different classes. (be)
are
5.My parents ____ both teachers. (be)
are
[解析] 根据这些句子的主语来判断be动词的正确形式。当主语是I的时候,后面用am; 当主语是you的时候,后面用are; the man 是单数,因此用is; Betty and Mike 作主语,后面用are; parents是名词复数,后面用are。
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Ⅰ.用be动词的适当形式填空
1.I ____an English girl.
am
2.A lot of new furniture___in the living room.
is
3.Where____the students from?
are
4.On the left____three tall buildings for science.
are
5.The Smiths____in China now. They____our friends.
are
are
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6.Ten and eight___eighteen.
is
7.Betty and I ____ in the same class.
are
8.This is my friend. Her name ___ Lily.
is
9.—Where ___the post office?
—It ___ behind the building.
is
is
10.It ___ a beautiful shirt, and I like it.
is
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Ⅱ.单项填空
11.Their classroom ________ over there.( )
A.are B.is C.am D./
12.—Are you from America?
—________ I'm from England.( )
A.No, you aren't. B.Yes, you are. C.No, I'm not. D.Yes, I am.
13.I think Ann and Betty ________ in the classroom.( )
A.is B.am C.are D./
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14.Ms Smith ________ our teacher. She ________ tall.( )
A.are; are B.are;