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2021年1月30日发(作者：世界足球明星)
1.

be
动词（
am/is/are
）

主语



I








be
动词（原形）








be
动词（过去式）




am




is


















was


was
were
He/she/it


We/you/they




are



口诀：我用
am,
你用
are
，
is
用在他她它，所有复数全用
are
①肯定和否定句


I am (not) from London.

He is(not) a teacher.

She is(not) in the dining room.

My hair is(not) long.

Her eyes are(not) small.
②一般疑问句


Am I a Chinese?
——
Yes, you are. /
No, you aren’t.

Is the cat fat?
——
Yes, it is. /
No, it isn’t.

Are they American?
——

Yes, they are. /
No, they aren’t.

表示疑问，一般回答只有两种可能
Yes
或No
，句中没有疑问词。

如何将一个肯定的陈述句改为否定句：
1
、看句中有无
be
动词，如有，把
be
动词提到句首即可。< br>
2
、看句中有无情态动词，如有，把情态动词提到句首即可。

3
、如上述二者都没有，就应把助动提到句首。分四个步骤：

（
1
）肯定陈述句中本来是没有助动词的，要加上去，位置在主语（某人
/
某物）
后，动词前。

（
2
）确定助动词用
do
、
doe s
还是
did
，根据句中动词，动词是原形的助动词就
用
do
，
动词是第三人称单数的助动词就用
does
，
动词用过去式的助动词就有
did
。


1
（
3
）把助动词后提到句首。

（
4
）原句中动词假如发生变化就要恢复成原形。

有
some
的要考虑是否要用
any
2.

助动词（
do/does/did
）

主语






助动词（原形）


助动词（过去式）





否定形式




do




does






did














don
’
t/didn
’
t


did












doesn
’
t/didn
’
t
I/We/you/they

He/she/it



①
.Do+
非第三人称单数＋动词原形
…?



do/don't you/they have...?
—
Yes, I do/No, I don
’
t.
②
.Does+
第三人称单数＋动词原形
…?

does/doesn't he/she have...?
—
Yes, he does./No, he doesn
’
t.
③
Did+
所有主格＋动词原形
…?




did/didn't you/he/she/they go to school?
—
Yes, i did./No, I didn
’
t.

3.

特殊疑问句

表示疑问，有疑问词开头，回答有很多种可能。常用疑问词：

What
、< br>Who
、
When
、
Which
、
Why
、
Whose
、
How
※
What do you/they/we…+
动词原形？


I/They/We+
动词原形
…



What does he/she/it…














He/She/It
+(
动词＋
S)….



What did you/they/we/ he/she/it…


I/They/We/ He/She/It
+
动词过去式

Eg:What did you do last weekend?



Who cleaned my room?






2

I cleaned my room.
Your mother cleaned your room.
I go to school at 7 o
’
clock.

The red one is my book.
When do you go to school?


Which one is your book?


Why do you like this book?



Because it is funny.

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