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1、Grammar动词-ing形式作主语和宾语Findandunderlinethesentencesinthepassagethatuse–ingformsaseitherthesubjectortheobject.Sincethen,findingwaystogrowmorericehasbeenhislifegoal.Asayoungman,hesawthegreatneedforincreasingthericeoutput.DrYuansearchedforawaytoincreasericeharvests
2、withoutexpandingtheareaofthefields.Justdreamingforthings,however,costsnothing.However,hedoesn’tcareaboutbeingfamous,DrYuanawokefromhisdreamwiththehopeofproducingakindofricethatcouldfeedmorepeople.subjectobjectobjectsubjectobjectobject一.动名词做主语的用法①动名词做主语往往表示经常性、
3、习惯性的动作,在口语中也可以表示具体的动作。如：Seeingisbelieving.Helpingherismyduty.Talkingmendsnoholes.空谈无济于事。Workingwithyouisapleasure.和你一起工作是一种乐趣。②动名词做主语和不定式做主语一样，也可以用it作形式主语。如：TolearnEnglishwellisn’tveryeasy.Helpingherismyduty.Workingwithyouisapleasure.Itismydutyhelpingher.Itisa
4、pleasureworkingwithyou.Itisn’tveryeasytolearnEnglishwell.③“Thereis+no”后可以用动词-ing形式作主语，表示“没法……”。Therewasnotellingwhenthismighthappenagain.没法预料这样的事什么时候会再发生。Therewasnoknowingwhathecoulddo.他能做什么很难说。1)这种事开不得玩笑。Hereis________aboutsuchmatter.2)无法知道他什么时候离开。Therewas___
5、_______whenhewouldleave.nojokingnoknowing常用-ing形式作主语的句型有：It+be+awasteoftimedoing做……是浪费时间的Itis/wasnogood/usedoing做……是没用处的Itis/washardly/scarcelyworthdoing做……不值得Itis/wasworth/worthwhiledoing做……是值得的Thereisnosenseindoing做……没有道理Thereis/wasnousedoing干……无意义Thereis/wa
6、snothingworsethandoing没有比……更糟的Thereis/wasnopointdoing干……无意义【考例】—WhatdoyouthinkmadeMarysoupset？—__________hernewbicycle．（1997上海高考题）A.Asshelost B.LostC.Losing D.Becauseoflosing解析：losinghernewbicycle是句子的主语，谓语madehersoupset被省略，losing…在此表示具体的动作。动词-ing形式作宾语1.有
7、些动词如admit,avoid,consider,escape,deny,risk,suggest等后能接动词-ing形式作宾语，而不能接动词不定式。如：We’reconsideringpayingavisittotheScienceMuseum.2.有些短语如can’thelp,beusedto,endup,feellike,leadto,bebusy,betiredof,befondof,beafraidof,beproudof,thinkof/about,putoff,keepon,insiston,bego
8、odat,giveup等后常接名词、代词或动词-ing形式作宾语。如：Ihavebeenusedtolivinghere.I’mfondofcollectingstampsandcoins.3.need,require,want作“需要”解时,后接动词-ing形式作宾语,主动形式表示被动意义,相当于tobedone。如：Theradioneeds/requi
