初中英语动词不定式完整ppt课件

It’s +adj. + sobf. +to do sth
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careful, clever, foolish ,kind, nice
1.It is very important for us ____ English well. A learn B learning C to learn D learned
6.固定句型:
1.had better (not) do sth. 最好（不）做某事 2.Why (not) do sth.? 为什么不做某事 3.Would you like to do sth?你愿意做某事吗？ 4.Could you please do sth?你能做某事吗？ 5.It’s + adj. +for(of) sb.+to do sth. 做某事怎么样 6. find it + adj. + to do sth. 发现做某事怎么样 7.prefer + to do A rather than (to) 8.would rather (not) do sth. 9.would rather do A than (do) B 宁愿做某事而不愿做另一件事
3.做宾补
The teacher told me to clean the blackboard
I expect you to give me some help.
let
一感:feel
三让 make
have
listen to
watch
二听
hear
四看
see look at
notice
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I made him do his work. He was made to do his work (by me).
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E1.x-e-rYciosue’sve done very well this time.
-- It’s really kind __C____.
A. for you to say so B. for you saying so
C. of you to say so D. of you saying so
2.爬那棵高树对于你来说太危险了。
—It— ——is dangerous for you ___t_o _c_l_i_mb
that tall tree .
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2.不定式做宾语
I want to go home. The workers demanded to get better pay. I found it necessary to talk to him again.
nothing, everything
等复合不定代词常用不
定式做后置定语。
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5.连接词+动词不定式
•who,which, when, how, what 等连用，在 句中不定式与疑问词起名词作用，可充当主语、 表语、宾语等。
He didn’t know what to say.他不知道说什么。
(宾语)
-- Why not _B___ it in some other way?
A. try to do
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B. try doing
C. trying to do
D. trying doing
2. It is better to lose one’s life than ____.
A. if you lose your spirit
C
B. losing his spirit
C. to lose one’s spirit
D. your spirit getting lost
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3. – I can’t work in this way.
How to solve the problem is very important.如
何解决这个问题很重要。(主语)
My question is when to start.我的问题是什么时
候开始。(表语)
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注意：” 疑问词 + 不定式“ 作宾语时可以转化
为宾语从句。如：
Can you tell me where to get the scarf?
think/ consider/ find it + adj.+ to do
常用动词不定式作宾语的动词有：
hope, refuse, learn,
choose, decide, agree, manage,
pretend, plan.
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warn, tell, allow, help, ask...
动词不定式
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构成： to+ 动词原形
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1.不定式做主语
To see is to believe. It’s important to keep healthy .
不定式作主语时,往往放在句子的后面, 用it作形式主语.
easy,difficult,hard
It’s +adj. + fsobr. +to do sth.
=Can you tell mew_h_er_e_I_c_an__get the scarf?
Could you tell me how I shoud get to
he post office? =Could you tell me
__h_ow__t_o
_g_e_t
the
post office?
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(如果不定式中的动词是不及物动词,
则不定式中要有介词.)
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1. 不定式所修饰的名词或代词是不定式动 作的地点工具等，即使是及物动词，不定 式后面仍须有相应的介词。
请给我一支写字的笔.
Please give me a pen to write with.
2. something, anything,
1. —Where is Jim ? — I don’t know But I saw him ___football just
now.. A.Was watching B. watching C had watching D.watched
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4.不定式做定语
I have something to say. He has a lot of homework to do . He is looking for a room to live in . There is nothing to worry about.