stopdoing/todostoptodo停止,中断做某事后去做另一件事。stopdoing停止做某事。Theystoptosmokeacigarette.他们停下来,抽了根烟。Imuststopsmoking.我必须戒烟了。典型例题Shereachedthetopofthehillandstopped___onabigrockbythesideofthepath.A.tohaverestedB.restingC.torestD.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stoptodosth.停下来去做另一件事。而不仅仅是爬山动作的终止,所以stopdoingsth.不正确。forgetdoing/todoforgettodo忘记要去做某事。(未做)forgetdoing忘记做过某事。(已做)Thelightintheofficeisstilon.Heforgottoturnitoff.办公室的灯还在亮着,它忘记关了。(没有做关灯的动作)Heforgotturningthelightoff.他忘记他已经关了灯了。(已做过关灯的动作)Don'tforgettocometomorrow.别忘了明天来。(tocome动作未做)典型例题----Thelightintheofficeisstillon.----Oh,Iforgot___.A.turningitoffB.turnitoffC.toturnitoffD.havingturneditoff答案:C。由thelightisstillon可知灯亮着,即关灯的动作没有发生,因此用forgettodosth.而forgetdoingsth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。rememberdoing/todoremembertodo记得去做某事(未做)rememberdoing记得做过某事(已做)Remembertogotothepostofficeafterschool.记着放学后去趟邮局。Don'tyourememberseeingthemanbefore?你不记得以前见过那个人吗?regretdoing/todoregrettodo对要做的事遗憾。(未做)regretdoing对做过的事遗憾、后悔。(已做)Iregrettohavetodothis,butIhavenochoice.我很遗憾必须这样去做,我实在没有办法。Idon'tregrettellingherwhatIthought.我不为告诉她我的想法而后悔。典型例题---Youwerebraveenoughtoraiseobjectionsatthemeeting.---Well,nowIregret___that.A.todoB.tobedoingC.tohavedoneD.havingdone答案:D。regrethavingdonesth.对已发生的事感到遗憾。regrettodosth.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。trydoing/todotrytodo努力,企图做某事。trydoing试验,试着做某事。Youmusttrytobemorecareful.你可要多加小心。Itriedgardeningbutdidn'tsucceed.我试着种果木花卉,但未成功。meantodoing/todomeantodo打算、想meandoing意味着Imeantogo,butmyfatherwouldnotallowmeto.我想去,但是我父亲不肯让我去。Toraisewagemeansincreasingpurchasingpower.赠加工资意味着增加购买力。