It 做形式主语,形式宾语的句型中,用动名词作逻辑主语或逻辑宾语.
There's no use( \point\ sense\ good等名词)+doing something
It's good( \nice\interesting\useless\fun\hard\useful等形词)+doing something 
It's no use (no good\no point\no sense\a waste of money等名词+of doing something .
v+doing与v+to do的区别
1.多数动词后要加to do作宾语。例如: want to do,hope to do表示将要去做
2.有些动词后只能用ing形式(当然也可用名词或代词)作宾语,它们是:
allow(但allow sb. to do sth.),advise(advise sb to do), appreciate,avoid,confess, complete ,consider=think of(consider sb / sth to be), contemplate,
favour,
delay, deny,
enjoy, escape , excuse,
fancy, finish, forbid(但forbid sb to do sth),get down to(开始着手做,to为介词),imagine, keep, keep on, miss ,mind, permit(permit sb to do),practise, pardon, postpone/put off
Require doing (require sb to do ), suggest,resent,stand,understand,necessitate,mention,acknowledge,advocate,等。react to后面加什么
3.有些动词后两种形式都可用没有什么太大的差异。例如:continue to do/continue doing, prefer to do/prefer doing, intend to do/intend doing
4.有些动词后尽管两种形式都可使用,但有意思上的区别。例如:
like to do (一次性的,具体的,特指的,具体的
like doing (习惯性的,经常性的,泛指的,抽象
like\prefer\hate\resent等词的后跟不定式和跟动名词的区别,动名词表喜好,不定式表对某一次具体行为的态度
forget/remember to do忘记\记得要去做某事(没做)
forget/remember doing忘记做过某事(做了)
go on to do做了一件事后,接着做另外一件事(前后两件事不同)
go on doing继续做原来做的事(前后是同一件事)
regret doing/having done/not doing/not having done后悔过去的事(无论做没做)
regret to do(是将来的事,意思是I am 动词常是say,tell,inform这一类的,表示"不好意思要跟你说一个不利于你的事)
mean to do 打算做某事
mean doing 意味着
need 使役动词或情态动词
1)使役动词sb needs to do sth/sth needs doing=sth needs to be done
2)情态动词need do sth
can't help doing禁不住做某事
can't help to do 不能帮忙做
can't help but do不能避免某事
try to do 努力去做(表示努力,企图做某事)
try doing 试一试做(表示试验,试着做某事)
stop to do停下现在做的,去做另一件事
stop doing停下正在做的事
cease to do表示长时间,甚至永远停做某事,
cease doing sth 表示短时停止做某事,以后还会接着做
interested to do想了解某事
interested doing 喜欢做某事
be afraid to do表示不敢,胆怯做某事,是主观上的原因不去做,意为
be afraid of doing sth 表示担心出现doing 的状况,结果.doing 是客观上造成的,意为生怕,恐怕
doing表经常 to do 表偶然
多数动词后面都是加TO DO
有一部分动词后面必须加Doing
这是固定的,死背
v+doing表示进行时态,表示正在做某事
v+to do表示将来要做的事
V+to do 一般指马上去做
V+ing 一般指现在正在做
forget to do 忘记去做(还没做过)
forget doing 忘记做(已经做了一半)
remember doing 记起去做(还没做过)
remember to do 记起做(已经做了一半)
除了一些单词只能加to do,一些只能加doing以外(当然这是固定的,只能死背),
还有既能to do 又能doing 的单词
like,love等词+to do 有要去做的意思,
like,love等词+doing 有正在做或经常做或习惯做的意思
只能接动名词的短语
think of, give up, aim at, put off, insist on, persist in, be good at, do well in, can't help, keep on, leave off, feel like, be tired (afraid, capable, fond) of, set about , look forward to, be used to, object to, devote oneself to, be devoted to ,dedicate to ,stick to, respond to, look forward to, see to, submit to, adapt to, apply to, accede to, get to, prefer to, adjust to, owe to, react to, accustom (oneself)to ,apply to, admit to ,aid to ,amount to, attribute to be accustomed to ,be committed to , be faithful to ,be familiar to ,be opposed to ,be reduced to ,be resigned to ,be sensitive to ,be superior to ,face up to, get down to ,in addition to ,in relation to ,indifference to ,keep to ,lead to ,limit to ,live up to ,owe to, owing to ,point to ,prefer to, put ones mind to ,resign oneself to ,resign to ,resortto ,s
inkto, stand up to ,stick to ,take to ,thanks to ,turn to ,with a view to ,with an eye to ,with regard to , burst out.
inue,intend,cease.                                                                                                     
1.  -ing 分词修饰人或类人时,用来表示人正在发生的动作,不需重读,                         
      解释为someone who is doing                                                                                 
2.  -ing 分词修饰物或类物时,用来表示此物的用途或特征,需要重读,                               
      解释为something which is used to do
     

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