动词不定式(广东省湛江市)

课件16张PPT。 动词不定式复习课Step 1 FeelI have a computer.
I want to …
There is something wrong with my computer.
I want to…
I have some money.
I want to …
动词不定式的基本形式：to + to do(动词原形)
动词不定式
通过“六字决”掌握不定式的一般规则：
动词不定式的特点可以用六个字来概括，即失去、保留和相当。
（1）失去（lose）:动词失去能充当谓语的功能，没有人称和数的变化
His wish is to become(表) a great scientist.
(2) 相当（Equal）:相当于一个名词、形容词或副词。
名词：
As subject（作主语）: To love and to be loved is a greatest happiness of life .
注 不定式做主语时,可用形式主语 “it” 来代替.把不定式放在句末.构成 “It is …to do sth” 句型.上例句子可改为:
It is a greatest happiness of life to love and to be loved . As object（作宾语）: We have decided to experiment with a new method .
副词：
As adverbial of purpose（作目的状语）: I started early (so as /in order ) to go to work .
As adverbial of result（作结果状语） : He is too young to join the army .
As adverbial of cause（作原因状语）: They jumped with joy to hear the news .
形容词：
As attribute ( 作定语): She is always the first one to come to the office .
As predicative (作表语): My intention is to stay abroad three years .
As object compliment(作宾语补足语) : They helped me to carry the heavy box . (3) 保留（To keep）:仍保留动词的两个特点。
a. 带宾语
to read a book
b. 被状语修饰
to sing at the party
c. 时态语态变化
a.不定式的否定结构: not + to doHe told me not to be late.
注 : 不定式否定句不同于否定句形式 .不定式否定句没有助动词,否定句有助动词.
He didn’t ask him to come here .
他没请他来.
He asked him not to come here.
他 请 他 不要来.B 不定式 的复合结构:for+名词(代词)+不定式:It is not right for you not to help her.不定式的 “of+名词(代)+不定式”结构:It’s kind of you to help me.不定式的 “疑问词+不定式”结构 .如:He didn’t know what to do .=He didn’t know what he should do.注意:带特殊疑问词的不定式可跟带带特殊疑问词的宾语从句进行句型转换. C 不定式的 “too+形容词或副词+to do sth”和 “too+形容词或副词+for sb/sth+to do sth结构She is too young to go to school.This pair of trousers is too dirty for him to wear.( not)+ 形容词或副词+enough for sb/sth + to
Do:某人能(不能)做某事:
He is not old enough to join the army.
=He is too young to go to school .1.He told her go out at night.
A.not B.don’t C doesn’t D not to
2.None of us know it.
A how do B what do
C how to do D what to do
3 .He came here his friends.
A see B seeing C to see D has seen
4 .Her parents her to be a doctor.
A .hope B .wish C .suggest D.agree
5. Be careful on the ice.
A. to not fall B not to fall
C. not falling D falling not
6.The house is not big enough to .
A to live in B to be lived in
C. to live D. for living
7. It’s important English well.
A. to learn B learn C learn D learns
8.I’d like you my parents soon.
A. to meet B meet C meeting D met
9.That’s really kind .
A .of you to say so B for you to say so
C .of you saying so D for you saying so
10.He is too tired any longer.
A can not walk B walking
C to walk D walks
特殊性认知语法阶段掌握规则之中的不规则，掌握一般性中的特殊性。 总结不带to的不定式的运用搭配（bare-infinitive）:
（1）在某些及物动词的复合宾语中，须省掉动词不定式符号to ,可以用下面的口诀帮助记忆：“一感”、“二听”、“三让”、“四看”、“半帮助”：
一感：feel
二听：hear , listen to
三让：have , make ,let
四看：look at , see ,watch ,notice
“半帮助”是指help后的动词不定式作宾语补足语时，可以带to ，也可不带。
e.g:
1) The teacher let me do my homework carefully.
2) Li Lei felt his heart beat fast when he saw the headmaster coming.
3) His mother made him stay at home all day.
4) I saw a bird stand in the tree.
5) The boy often helps his mother (to) do the housework.
6) We often hear her sing in the room(2) 一些常用搭配如：had better ,rather than , would rather等的后面也跟不带to的动词不定式。e.g
You had better go home now.
I would rather go early .
Will you please say it again?
练习（Practise）
1.He made me it again.
A. to do B. do C. that I did D. doing
2.I’m hungry .Get me something
A.eat B.to eat C. eating D.for eating
3.He is too tired any longer.
A.Can not work B.walking C. to walk D. walks
4.Who taught you a car?
A.driving B.to drive C.riding D.to ride