gerund形式doingreadingmaterialwalkingstick手杖flyingsuit飞行服动名词作定语可用来说明被修饰的名词的用途和性能developingcountries=countriesthataredevelopingatouchingstory=astorythatistouching一个动人的故事-ing分词作定语可以表示所修饰的人或物的动作或状态,在意思上接近一个定语从句,可以表示正在进行的动作,也可表示经常性动作或当时的状态
做表语Theirjobisbuildinghouses
Therealquestionisgettingtoknowtheneedsofthepeople动名词作表语可以表示主语的内容是什么Thisstoryisveryinteresting
Theproblemisquitepuzzlinging分词作表语可以表示主语所具有的特征3
做主语Smokingisforbiddenhere
Itisnousetryingagain
Itisnousecryingoverspiltmilk
Itisnouse\good\uselessdoing4.做宾语A
bebusy\worthdoingBeworthytobedoneBeworhyofbeingdoneb
Need\want\require+doing需要=tobedoneThissentenceneeds______
aimprovementB
improveC
improvingD
improvedCC
含有to的短语动词:be\getusedto,lookforwardto,objectto,getdownto,payattentionto,devotetoleadto,onthewayto,inadditionto,prefer…to…We'relo