课件17张PPT。 动名词动名词的形式:
一般式:主动式—doing
eg.Seeing is believing.
被动式—being done
eg.He came without being invited.
完成式:主动式—having done
eg.He apologized for not having helped me three years before.
被动式__having been done
否定式: not doing/not having done
复合结构:one/one’s doing
eg.I suggest you/your going now.但是Your going now is reasonable.
动名词的句法功能一 .作主语:
Reading aloud is very helpful.(朗读是很有好处)
Collecting stamps is interesting.(集邮很有趣)
当动名词短语作主语时在下列句型中常用it作形式主语:
a. It is no use doing sth.
b. It is useless doing sth.
c. It is a waste of time/money doing
d. There is no doing…
eg. There is no knowing what his name is.
eg. It’s no use crying over spilt milk.
句型:There is no denying the fact that…(……这一事实是不可否认的)
二.作表语:
1. In the ant city, the queen's job is laying eggs.
(在蚂蚁王国,蚁后的工作是产卵。)2 .A good way of saying “I am full ”is moving the hand in circles over the stomach after a meal.
3. My job is teaching .三.作宾语:
1.动词宾语
1)下列动词后面只能跟doing,不能跟to do
这些可要记住哟!finish, mind, enjoy,
advise, suggest, recommend,
allow, permit, forbid,
admit, deny,
avoid, escape, miss,
delay, postpone,
stand,
practise, risk, appreciate, imagine, consider(考虑)
allow, permit, forbid 后面 直接跟doing作宾语,但如果其后有名词/代词作宾语时就要用to do作宾语补足语。
eg.a.We don’t allow smoking
here.
b. We don’t allow students to smoke here.
c.We are not allowed to smoke here.
同样:advise/recommend doing
advise/ recommend sb to do
advise/recommend (that) sb. (should) do
特别 提示 2)下列动词后面既可以跟doing也可以跟to do ,但是意思不一样
go on doing stop doing
go on to do stop to do
mean doing be used to doing
mean to do be used to do
cannot help doing try doing
cannot help to do try to do
look forward to ( 请造三个不同结构的句子)
须通过语境才知道应该使用哪种形式
remember
forget
regret
你们知道这三个单词的用法吗?3)与情感有关的动词之用法:
like ,love, prefer, hate 后面跟doing表经常性的行为,跟to do表具体(某一个方面)的行为。
eg. I like swimming ,but I don’t like to swim tomorrow.
b.He likes reading ,but he prefers to read Lu Xun.
注意:
like doing/to do
feel like doing
would like (not)to do
would like (not)to have done
would like sb to do sth
would like sth (to be) done
dislike doing
4)begin/start后既可以跟doing也可以跟to do,但通常在下列情况下跟to do:
a.begin/start本身是进行 时态。
eg.Look!It is beginning to rain.
b.begin/start后面跟表心理活动的动词 eg.Finally,because of his patience,I began to understand him.
c.某物体作句子主语时
eg.The deep snow began to melt.
5)need/want/require(需要)作谓语,动词作宾语并且与句子主语具有逻辑上的动宾关系,这时要么用doing,要么用to be done
eg.The old man needs looking after/to be looked after.
6)worth/worthy/worthwhile
我们学校值得参观:
a.Our school is worth visiting.
b.Our school is worth a visit.
c.Our school is worthy to be visited.
d.Our school is worthy of being visited.
e.Our school is worthy of a visit.
参观我们学校值得:
It’s worthwhile visiting/to visit our school.
你们参观我们学校值得:
It’s worth your while to visit our school.
2.介词宾语
1)介词(but/other than短语除外)后面,动词作宾语的话,都要换成doing.
eg.I am sorry for coming late.
You can succeed by working hard.
He came without being noticed.
注意:在下面这些短语/句型中,介词均省略。
spend…(in) doing
have difficulty/trouble (in) doing
prevent/stop sb.(from) doing
discourage sb (from) doing
hold sb back (from) doing
There is/seems no point/sense (in) doing2)带介词to的短语
在英语中to可能是介词也可能是不定式符号,如果是前者后面就要跟doing,如果是后者就要跟do. 所以一定要记住下面的固定短语, 其中to均是介词。
object to devote…to/be devoted to
prefer…to … sentence sb to
stick to lead to
get down to
come to___when it comes to…
come close to contribute to
amount to
attach importance/significance to
pay attention to appeal to
be addicted to be attached to(附属于,喜欢)
be related to apply oneself to
see to be exposed to
还有许许多多的需要努力去记忆!!!
只要功夫深铁杵磨成针3)下面的短语中也有to,
但to的意思是“…的”
have access to
an approach to
a solution to
a threat to
a danger to
reaction to
response to
the key to
on the way to
the limit to
the assitant to
the secretary to
……
四.作定语
doing作定语表用途:
readingroom
dressing table
walking stick
sleeping car
writing table
changing room
fishing pole
五.动名词的复合结构(one/one’s+doing)
eg.I suggest you/your going tomorrow.
1.作主语时只能用one’s
eg.His coming late is no surprise.
2.逻辑主语是物时只能用one
eg.We can hear the
noise of desks
being opened
and closed.
3.逻辑主语是短语时
只能用one
eg.I dislike
Tom and Jack playing together. 再 见
祝大家开心充实过好每天!