一．动词后接不定式和动名词的区别
1. Stop to do 停止，中断做某事后去做另一件事
Stop doing 停止正在做的某事
They stopped to smoke a cigarette.
I must stop smoking.
2. Forget to do 忘记要去做
  Forget doing 忘记做过某事
  The light in the office is still on. He forgot to turn it off.
  He forgot turning the light off.
3. remember to do 记着去做某事
  Remember doing 记着做过某事
  Remember to go to the post office after school.
  Don’t you remember seeing the man before?
4. try to do 设法或努力去做某事
  Try doing 尝试着做某事
  You must try to be more careful.
  I tried gardening but didn’t succeed.
5. regret to do 对要做的事情遗憾
  Regret doing 对做过的事情遗憾，后悔
  I regret to have to do this, but I have no choice.
  I don’t regret telling her what I thought.
6. mean to do 打算，想
  Mean doing 意味着
  I mean to go, but my father would not allow me to.
  Doing that means wasting time.
7. go on to do 放下手中的活，继续去做别的活
  Go on doing 继续做原来做的活
  We had supper and went on to watch TV.
  He didn’t have a rest and went on working.
8. be afraid to do 不敢，胆怯去做某事，主观原因不去做意为“怕”
Be afraid doing 担心出现doing 所指的状况，结果，doing 是客观造成的结果，意为“生怕”“恐怕”
She was afraid to wake her husband up.
She was afraid of waking her husband.
二．动词不定式做宾补和分词做宾补的区别
  Look at, see, watch, hear, find, feel 等感官动词后接不定式做宾补时，表示动作的全过程已结束，后接分词做宾补时，表示动作的一部分正在进行。
  I saw him cross the road.
  I saw him crossing the road
  I heard someone enter the room.
  I heard someone singing.
  I felt something hit me on the back.
  Can you feel the train slowing down?
三．Need, require, want 后跟不定式和动名词的区别
  当need, require, want 做“需要”理解时，后加动名词主动式等于不定式的被动式。
  The window needs cleaning.====The window needs to be cleaned.
四．现在分词与过去分词的区别
  1. 在语态上，现在分词表示主动意义，过去分词表示被动意义。
      the surprising news
      a surprised man
      a moving film
      the moved people
  2. 在时间上，现在分词表示正在进行的动作，过去分词表示已经完成的动作。
      the developing country
      the developed country
      the rising sun
      the risen sun
  五．注意含有介词to 的固定短语
    1.  Make (a) contribution (s) to 为-----做贡献
        Everyone should make a contribution to society.
2.devote to 献身，致力于-----
He has devoted his life to helping disabled people.
3.look forward to 期待，盼望
we are so much looking forward to seeing you again.
4.prefer----- to----- 两者间更喜欢-------
I prefer walking to cycling.
    5.  be used to 习惯----，适应-----
        She is quite used to working hard.
  六． 易混句式
    1. have sb do sth  让某人做某事，have 可以用 let,make 代替
      The soldiers had the boy stand with his back to his father.
    2. have sb doing sth 让某人一直做某事，have 可以用 keep 代替，动作具有持续进行的含义
      The two men had their lights burning all night long.
    3. have sth done  让某事被别人做，即 ask sb else to do sth.过去分词done 这个动作由他人（非主语本身）来完成，含有被动意义且强调动作已经完成
      The driver had his car washed once a week.
      My hair is too long. I will have it cut tomorrow.
Exercises
用所给动词的适当形式填
1.I hope _________(find) a good job in a foreign company after I graduate from school.
2.He found it hard ______________ ( catch up with) his classmates.
3.Father asks me _____________ (not play) games before finishing my homework.
4.All the children like Mr White very much because he often makes them ___________ (laugh).
5.Let him __________ (have) a rest. I think he must be tired after the long walk.
6.We have two rooms _________ (live) in, but I can’t decide which one ___________ (choose).
7.Bob speaks Chinese quite well. Yes, go he does. He practices ____(speak) Chinese every day.
8.Before 2018 we will finish _______________ (build) the school.
9.She says he doesn’t feel like _____________ (go) out with you.
10.The boy _____________ (stand) in the teacher’s office was found smoking yesterday.
真题练习require名词
1.My roommate often asks me _____________ her to play chess.
A.  teach      B. teaching        C. to teach
2.  Please don’t forget __________ the room while I am away in Beijing.
  A.  clean      B. to clean          C. cleaned        D.cleaning
3.  Wow! There are so many books. I really can’t decide __________.
  A.  where to buy  B. which to buy    C. what to buy    D. how to buy
4.  I can’t decide ___________. You mean the purple sweater or the blue one?
  A.  how to go there  B. who to go with    C. where to visit  D. which to choose
5.  The doctor did what he could __________ the dying man.
  A.  save        B.  to save        C. saved          D. saving

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