8.4 regret doing/to do regret to do　 对要做的事遗憾。　　　(未做) regret doing　 对做过的事遗憾、后悔。　(已做) 　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。 典型例题 ---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 答案：D。regret having done sth. 对已发生的事感到遗憾。regret to do sth. 对将要做的事感到遗憾。本题为对已说的话感到后悔，因此选D。

8.3 remember doing/to do 　remember to do 记得去做某事　　 (未做) 　remember doing　记得做过某事　　 (已做) 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?

8.2 forget doing/to do 　forget to do　忘记要去做某事。　(未做) 　forget doing　忘记做过某事。　(已做) 　The light in the office is stil on. He forgot to turn it off. 　办公室的灯还在亮着，它忘记关了。(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) 　Don't forget to come tomorrow. 　别忘了明天来。　　　　 (to come动作未做) 典型例题 　---- 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 　 答案：C。由the light is still on 可知灯亮着，即关灯的动作没有发生，因此用forget to do sth. 而forget doing sth表示灯已经关上了，而自己忘记了这一事实。此处不符合题意。

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。 　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。 典型例题 　 She 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 答案： C。由题意可知，她到了山顶，停下来在一个路边的大石头上休息。因此，应选择"stop to do sth. 停下来去做另一件事"。而不仅仅是爬山动作的终止，所以stop doing sth.不正确。

8. 特殊词精讲

50. __________ from you for months, we missed you very much.

　 A. Having not heard　　　 B. Not having heard

　 C. Not heard　　　　　　 D. Not having received　　　

　1-10 ABBAABDBBC　　　 11-20 CBCDCAAACC　　 21-30 CDBDCABAAC

　31-40 CCCBBDACBB　　　 41-50 BCBBBCCADB

同步词汇与语法结构

49. Hearing the news, _____________.

　 A. and he couldn’t keep back his tears　　 B. tears came to his eyes

　 C. she had began to cry　　　　　　　　 D. she burst into tears

48. We found the ground covered with ___________ leaves.

　 A. fallen　　 B. fell　　 C. falling　　 D. having fallen

47. --- Why not light a lamp there?

　 --- There is a __________ lamp already.

　 A. lighting　　 B. lit　　 C. lighted 　　　D. litted

46. ___________, blood ran down his nose.

　 A. He fell to the ground　　　　　　　 B. Falling to the ground

　C. When he fell to the ground　 　　　D. Having fallen