八年级动词不定式

八年级动词不定式

初中英语八年级动词不定式专项练习

一、动词不定式的用法

否定形式：not + to + 动词原形构成

1）作主语常用句型：It is adj. to do sth.

To learn English well is not easy. 或It is not easy to learn English well.

2）作表语(放在be动词后) My wish is to become a teacher.

3）作宾语（①及物动词后）Most of us like to watch football matches.

①及物动词后

决定想做计划需要同意，能做被用来做的事

decide to do sth. 决定做某事want ∕would like to do sth. 想做某事

plan to do sth. 计划做某need to do sth. 需要做某事

agree to do sth. 同意做某事afford to do 能做某事

be used to do 被用来做某事

迫不及待下决心做过去常常未能做的事

can’t wait to do 迫不及待地要做某事make up one’s mind to do 下决心做某事used to do 过去常常做某事fail to do 未能做某事

②特殊疑问词后

He doesn’t know how to use the machine. (不定式作宾语) 4）作宾语补足语He told me to be here on time.

①带to类

请求与命令想要邀请期待鼓励与建议答应告诫允许提醒和帮助

want sb. to do sth. 想要某人做某事invite sb. to do sth. 邀请某人做某事

expect sb. to do sth. 期待某人做某事encourage sb. to do sth.

鼓励某人做某事

advise sb. to do sth. 建议某人做某事promise sb. to do 答应某人做某事

warn sb. to do sth. 告诫某人做某事allow sb. to do sth. 允许某人做某事

remind sb. to do sth. 提醒某人做某事help sb. (to) do sth. 帮助某人做某事

②省略to 类

make/let/have sb. do sth. 使/让某人做某事

see/watch/hear/notice sb. do sth.

注意两种用法得区分：

see sb. doing/ do sth. hear sb. doing/ do sth.

watch sb. doing/ do sth. notice sb. doing/ do sth.

had better （not）do sth. 最好(不)做…help s b.（to）do sth why not /why don’t you do sth.为什么不做…? 表达向某人提出建议

Would rather do sth.?宁愿做…Would you please do sth.?

5）作定语（不定式修饰名词或代词作定语，放于名词或代词后）

I have nothing to say about that thing.

6）作状语

目的状语

He stopped to have a look.

结果状语

I’m glad to see you here.

不定式的特殊句型：

1）too…to do sth.…：太…而不能…He is too excited to speak. 2）enough to do：足以做…The child is old enough to go to school

不定式专项练习题

1.You’d better _______ at home all the time. It’s bad for your

health.

A. don’t stay

B. no to stay

C. not stay

D. not staying

2. The mother asked the boy _______ down the ladder, but he went on _______ instead.

A. come; climbing

B. to come; to climb

C. to come; climbing

D. coming; climbing

3. Is there any time _______ to the museum?

A. going

B. to go

C. goes

D. gone

4. The teacher asked the students to close the windows ____the wind from ____the papers away.

A. to stop; blowing

B. stopping; blowing

C. to stop; blow

D. stopped; blow

5. I find _______ him all about it.

A. necessary to tell

B. that necessary to

C. necessary it to tell

D. it necessary to tell

6.What is the best way do you think ______ the wild animals?

A. protecting

B. to protecting