2020年人教版英语九年级Unit4知识点总结整理

2020年人教版英语九年级

Unit 4 I used to be afraid of the dark.

语法

used to 的用法

1.“used to do sth”意为“过去常常做某事”，表示过去的习惯动作或状态，现在

/

已不发生或不存在。

She used to be thin,but now she is fat.

The young man used to wear glasses,but now he doesn’t wear glasses.

2.带used to的句子的各种句式的构成：

(1)肯定句的构成是:主语+ used to do sth.

—

He used to play basketball after school.

(2)否定句的构成是:主语+ didn’t use to do sth.

She didn’t use to have long hair.

(3)一般疑问句构成是: Did+主语+use to do sth

肯定回答是：Yes,主语+did

#

否定回答是：No,主语+didn’t

Did he use to play the piano Yes,he did/ No,he didn’t

(4)反意疑问句的构成是：didn’t+主语

She used to be very thin, didn’t she

3.妙用异同

#

(1)used to do sth.表示过去习惯性的动作或经常性的状态.

He used to smoke,didn’t he

(2)be used to doing sth表示“习惯于做某事”

My parents are used to getting up early.

(3)be used to do sth=be used for doing sth是被动结构，表示“被用来做某事”

%

The knives are used to cut things.=The knives are used for cutting things. (1)—Wow! You look different! You wear glasses.

—Yes,I did. But now I am wearing contact lenses(隐形眼镜)

B. must to

(2) When I was a child, I used to ___________ strawberry.

]

A. liking

B. like

C. liked

D. likes

(3)___________ study in Middle School

A. Did you used to

B. Did you use to

C. Do you used to

D. Do you use to

(4)She used to with her parents, but now she is used to___with her classmates

at school.

A. live; living ; live ; living ; live

(5)Mother used to grow flowers in her garden.(改为否定句)

Mother grow flowers in her garden.

"

(6)The little girl often wore a skirt in the past.(同义句)

The little girl a skirt.

(7)You used to be very strong, (完成反意疑问句)

反意疑问句的用法

1.含义、构成和回答

#

①反意疑问句也叫附加疑问句, 反意疑问句表示说话人对所陈述的事情有所怀疑或

不肯定，想通过对方的回答来加以肯定或否定。

②它的结构由两部分组成：陈述句＋简短问句。如果前一部分为肯定形式，后一部

分用否定形式；前一部分为否定形式，后一部分就用肯定形式。也就是说反意疑问句要遵循“前肯后否，前否后肯”的原则。

③反意疑问句的回答和一般疑问句的回答是一样的。

Mary likes reading，doesn’t sheMary doesn’t like reading，does she

Yes,she ,she doesn’t

You’re a new student，aren’t youYou aren’t a new student，are you

"

Yes,I ,I’m not

(1)John had a short walk after lunch,

he B. didn’t he he ’t he

(2)There isn’t any water in the bottle,

it there ’t it ’t there

，

(3)She’s come back, __________ she

A. is

B. isn’t

C. has

D. hasn’t

2.反意疑问句应注意三点：

(1)除了no,not以外的其他否定词有never（从不）,nothing（没有什么）,few（几乎

没有）,little（几乎没有）,hardly（几乎不）,seldom（不常，很少）而unhappy（不高兴的）,uncrowded（不拥挤的）,dislike（不喜欢）等不是否定词。

She has few friends,does she Yes,he does.

-

Jim never goes to the movies on Saturday,

Jim ’t Jim ’t he he

(2)祈使句的反意疑问句,一般在句末用will you（包括以Let us开头的祈使句）;而以

let’s开头的祈使句,其反意疑问句是shall we

Let’s go out for a walk,shall we Let us go out for a walk,will you

Don’t drink too much,will you