初二英语王晋：语法-不定式

看见…
注意…
see sb do sth
watch sb do sth
notice sb do sth
最好(做)… had better do sth
• My father asks me ______ C in the street. It’s dangerous. A. not playing B. not play C. not to play D. don’t play
all.
可位于句首或句末
I am afraid to speak to her.
be + adj + to do sth
It was too dark for her to see anything.
too…to do sth（表否定）
She is sorry ______ B you . A. trouble B. to trouble C. troubles
八年级英语
A班
10.---Did you hear someone knock at the door just now? D to my friend on the phone. --- Sorry. I _____ A. will talk B. talked C.am talking D. was talking
要求… ask sb to do sth
建议… advise sb to do sth
告诉… tell sb to do sth
鼓励… encourage sb to do sth
省略to 帮助… help sb (to) do
让…
听见…
let/make/have sb do sth
hear sb do sth
区别：动词后接不定式与动名词
try to do sth 努力去做某事 4. try doing sth 试着去做某事
Please try to do better next time.
He tried speaking English to us.
Mr. Zhou is good at cooking and he decided ____ C his own restaurant. A. open B. opened C. to open D. opening
解析:你听见刚才有人敲门了吗？回答对不起，
刚才有人敲门的时候我正在和朋友打电话。I
was talking to my friend on the phone when
someone knocked at the door just now.
Let it go
动词不定式 课本：Module5&6
定义和结构
喜欢…
忘记…
记住…
停下来去…
区别：动词后接不定式与动名词
区别：动词后接不定式与动名词
stop to do sth 停下来去做某事
1. stop doing sth 停止做某事 Stop to think about it for a moment. Stop smoking, please.
区别：动词后接不定式与动名词
Can you tell me how I can get there?
7.和疑问词连用 He doesn’t know where to go.
He doesn’t know where he should go.
易错点： 1. He was very sad to saw it. 动词不定式后动词用原形，不受句子时态的影响。
• I hope to understand more next time.
谓语+动词不定式
want to do sth
hope to do sth
同意… agree to do sth 开始… start/begin to do sth 选择… choose to do sth 决定… decide to do sth
A. have
B. having
C. has
D. to have
测
2.作宾语的补足语（宾补） …it allows people to get closer to them… I warned him not to go too far. They let the elephants live in the nature park.
in the forest.
A. makes
B. make C. to make
测
6.定语
• Alice had nothing to eat.(M7) • Many animals don’t have a safe place to live.(M6) 动词不定式常用来修饰名词或不定代词
，放在修饰的词后面，为后置定语。
测
He is too young ______ A to school. A. to go
B. going
C. goes
测
4.作主语
• It is good(for us) to have our fans around.(M3) • It wasn’t very polite of you to sit down.(M7) • It takes an hour to get there by bus.(P9)
测
My brother is a humorous young man.
B He often tells jokes to make us _____.
A. laughing B. laugh C.to laugh
测
3.作状语（表目的，原因，结果） …the WWF is working hard to save them
It is adj (for/of sb) to do sth.
It takes sb …to do sth.
A a picnic on the hill. It was great fun _____
A. to have
B. of having
C. have
D. had
测
It took Jack twenty minutes ____ D out
• 动词不定式没有人称和数的变化 在句中不能做谓语 • to+V原形，有些动词后动词不 定式省略to • not to +V原形
动词不定式的基本用法
具有名词、形容词或副词的特点，可以在
句子中用作主语、宾语、宾语补足语、状
语、定语、表语及同位语等。
1.作宾语 动词不定式放在谓语动词后 • I wanted to see the Beijing Opera.
2. The bird decided filled the sea with stones.
两个动词连用，一个是谓语，跟在谓语 后的动词要用动词不定式
3. Don’t forget keep a Chinese diary. 公式要记牢：forget to do sth
Thank you !
谓语+宾语+动词不定式
否定形式在to前面加not
allow sb to do sth warn sb not to do sth
有些动词后省略toቤተ መጻሕፍቲ ባይዱ
let sb do sth
动词+宾语+动词不定式 想要… want sb to do sth
would like to do sth
邀请… invite sb to do sth
Would you like something ______? C
A. drink B. drinking C. to drink D. drinks
测
D I have a lot of homework ______.
A. do B. doing C. did D. to do
测
7.和特殊疑问词连用 Can you tell me how to get there?
remember to do sth 记住要去做某事 2. remember doing sth 记得曾做过某事 Please remember to post my letter. I remember posting your letter.
区别：动词后接不定式与动名词
forget to do sth 忘记要去做某事 3. forget doing sth 忘记曾做过某事 I forget to bring my homework. I forget bringing my homework.
测
We only planned _____ A the play for an hour,
but in the end, we stayed for three hours.
A. to watch
B. watches
C. watch
D. watched
测
D a rest, I am too tired. Jim, stop _____
忘记… forget to do sth
计划… plan to do sth
提议… offer to do sth
学… learn to do sth
尽力… 承诺… 需要…
try to do sth promise to do sth need to do sth like/love to do sth forget to do sth remember to do sth stop to do sth
the math problem yesterday.
A. work
B. worked
C. working
D. to work
5. 表语
My dream is to be a doctor. 放在系动词后面，常说明主语的身份，职业， 性质内容或特征。
C a small house The next step is _____