Book4 Unit2.ppt

Wordstudysunburnt,rid…of,expand,circulate,wouldrather,struggle,expert,satisfiedwith,equip,crop,thanksto1statistics,globe2super,nationalities3Hunger,disease4Vietnam,occupations5freedom,exporteddecade,struggle,expanding,Equipped,output,grain,crops,battles,disturbingGrammar1.动词-ing形式是在动词末尾加-ing，属于非谓语动词。如：do-doing,write-writing,sit-sitting,etc.否定形式：not+v--ing构成2.动词-ing形式作主语或宾语时，也可称为动名词。动词-ing形式作主语1.动词-ing形式作主语表示抽象的或泛指的动作,谓语动词用单数。如：Readingaloudisveryimportantforustolearnaforeignlanguage.Goingtobedearlyandgettingupearlyisconsideredtobeagoodhabit.2.动词-ing形式作主语时常后置,用it作形式主语，用形容词或名词作表语。常见的作表语的名词或短语有：nouse,nogood,fun,hardwork,ahard/difficultjob,awonder,awasteoftime等。如：Isitworthwhilequarrellingwithher?It’snogoodwaitinghere.Let’sgohome.Itwasawasteoftimereadingthatbook.3.“Thereis+no”后可以用动词-ing形式作主语，表示“没法……”。如：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。动词-ing形式作宾语1.有些动词如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,begoodat,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/requires/wantsrepairing/toberepaired.[注意]动词-ing形式的复合结构是指在动词-ing形式前面加上逻辑主语来强调动作的执行者，该逻辑主语常为形容词性物主代词或名词所有格；当逻辑主语不出现在句首时，可用人称代词的宾格代替形容词性物主代词或用名词普通格代替名词的所有格。如：I’mannoyedaboutJohn’sforgettingtopay.Ireallycan’tunderstandyoutreatingherlikethat.2.动词-ing形式的否定形式是在其前面加not，带有逻辑主语时not应在动词-ing形式之前。如：Notcleaningherteethmadehersmellbad.Yourschoolmate’snotcominghomeintimemadeherparentsworried.需要注意的问题：想要拒绝命令，需要努力学习,期望同意帮助，希望决定开始。以下的动词后面既可接动词的不定式又可以接动词的ing作宾语：hate,love,prefer,remember,forget,regret,like,try,stop,begin,start既跟动词ing又接不定式作宾语的动词歌诀:[即时练习]从A、B、C、D四个选项中选出最佳选项。1.It’snecessarytobepreparedforajobinterview.____theanswersreadywillbeofgreathelp.A.Toha