复习主谓一致，虚拟，定从.doc

8.1 stop doing/to do stop to do 停止，中断做某事后去做另一件事，stop doing 停止做某 事例如：They stop to smoke a cigarette. 他们停下来，抽了根烟 I must stop smoking. 我必须戒烟了 8.2 forget doing/to do forget to do 忘记要去做某事，forget doing 忘记做过某事例如：The light in the office is stil on. He forgot to turn it off. 办公室的灯还在亮着，他 忘记关了 （没有做关灯的动作） He forgot turning the light off. 他忘记他已经关了灯了 （已做过关灯的动作） 8.3 remember doing/to do remember to do 记得去做某事，remember doing 记得做过某事例如： Remember to go to the post office after school. 记着放学后去趟邮局 Don't you remember seeing the man before? 你不记得以前见过那个人吗? 8.4 regret doing/to do regret to do 对将要做的事遗憾，regret doing 对做过的事遗憾、后悔。

例如： I regret to have to do this, but I have no choice. 我很遗憾必须这样去做，我实在没 有办法 I don't regret telling her what I thought. 我不为告诉她我的想法而后悔 8.5 cease doing/to do cease to do 长时间，甚至永远停做某事，cease doing 短时停止做某事，以后 还会接着做例如： That department has ceased to exist forever. 那个系已不复存在 The girls ceased chatting for a moment when their teacher passed by. 姑娘们在老师 走过时，停了会聊天 8.6 try doing/to do try to do 努力，企图做某事，try doing 试验，试着做某事例如： You must try to be more careful. 你可要多加小心I tried gardening but didn't succeed. 我试着种果木花卉，但未成功。

8.7 go on doing/to do go on to do 做了一件事后，接着做另一件事，go on doing 继续做原来做的事After he had finished his math，he went on to do his physics. 做完数学后，他接着 去做物理 Go on doing the other exercise after you have finished this one. 作完这个练习后， 接 着做其他的练习 8.8 be afraid doing/to do be afraid to do 不敢，胆怯去做某事，是主观上的原因不去做，意为“怕“，be afraid of doing 担心出现 doing 的状况、结果doing 是客观上造成的，意为“ 生怕，恐怕“例如： She was afraid to step further in grass because she was afraid of being bitten by a snake. 她生怕被蛇咬着，不敢在草丛中再走一步She was afraid to wake her husband. 她不敢去叫醒她丈夫。

She was afraid of waking her husband. 她生怕吵醒她丈夫 8.9 be interested doing/to do interested to do 对做某事感兴趣，想了解某事，interested in doing 对某种想 法感兴趣，doing 通常为想法例如： I shall be interested to know what happens. 我很想知道发生了什么事 （想了解） I'm interested in working in Switzerland. Do you have any idea about that? 我对在瑞士工作感兴趣你想过这事吗? （一种想法） 8.10 mean to doing/to do mean to do 打算、想，mean doing 意味着例如： I mean to go, but my father would not allow me to. 我想去，但是我父亲不肯让我 去 To raise wage means increasing purchasing power. 增加工资意味着增加购买力。

8.11 begin（start） doing/to do begin / start to do sth /begin / start doing sth. 1） 谈及一项长期活动或开始一种习惯时，使用 doing例如： How old were you when you first started playing the piano? 你几岁时开始弹钢琴？ 2） begin, start 用进行时时，后面动词用不定式 to do例如： I was beginning to get angry我开始生起气来 3） 在 attempt, intend, begin, start 后接 know, understand, realize 这类动词时，常 用不定式 to do例如： I begin to understand the truth我开始明白真相 4） 事物作主语时例如：The snow began to melt.雪开始融化了 8.12 感官动词 + doing/to do 感官动词 see, watch, observe, notice, look at, hear, listen to, smell, taste, feel + do 表示动作的完整性，+doing 表示动作的进行性。

例如： I saw him work in the garden yesterday. 昨天我看见他在花园里干活了 （强调“我 看见了“这个事实） I saw him working in the garden yesterday.（强调“我见他正干活“这个动作）昨天 我见他正在花园里干活 1She reached the top of the hill and stopped ___ on a big rock by the side of the path. A. to have rested B. resting C. to rest D. rest 2---- The light in the office is still on. ---- Oh，I forgot___. A. turning it off B. turn it off C. to turn it off D. having turned it off 3---You were brave enough to raise objections at the meeting. ---Well, now I regret ___ that. A. to do B. to be doing C. to have done D. having done 4They knew her very well. They had seen her ___ up from childhood. A. grow B. grew C. was growing D. to grow 5The missing boy was last seen ___ near the river. A. playing B. to be playing C. play D. to play CCDAA 1. Early to bed and early to rise ______ a man healthy, happy and wise. a. making b. to make c. make d. makes2. Mathematics ______ the language of science. a. is b. has been c. are d. have been 3. The young ______ the vital forces in our society. a. is b. has been c. are d. have been 4. Every man, woman and child ______ some history, enough at least, to survive in the world. a. knows b. know c. is known d. are known 5. None of them ______ my friends. a. is b. are c. was d. has been 6. Not only the whole nation, but the whole Europe , indeed the whole human society ______ to alter its attitude to racial problems. a. need b. needs c. has a need d. have a need 7. Getting to other planets or to the moon _____ many problems. a. involve b. involves c. involving d. to involve 8. . In that country, the rich ______ richer, the poor, poorer. a. become b. has become c. becomes d. is becoming 9. . The project requires more labor than ______ because it is extremely difficult. a. has been put in b. have been put in c. being put in d. to be put in 10. Not one in one hundred children exposed to the disease ______ likely to develop it. a. should be b. must be c. is d. are 11. If only I ______ there. a. have not been b. would not been c. will not be d. had not been 12 .Tom would buy that bicycl。