大学英语学习资料：非谓语动词1.不定式的用法

不定式todo动词+代词宾语+不定式常见的这些动词：ask,tell,invite,compel,force,oblige,get,beg,allow,help,wish,want,like,hate,prefer,intend,expect,encourage,advise,persuade,permit,request,order,command,urge等在make,let,have,see,hear,watch,notice,feel等动词后的复合宾语中，不定式都不带to:但这种句子如果变为被动语态，就要带to:Theyweremadetoworkdayandnight.Someonewasheardtocomeuptheupstairs.不带to不带to的不定式其他情况见《语法教程》P.86注意区别:havesb.do要,希望;允许；经历havesth.doneIt’slovelytohavepeoplesmileatyouinthestreet.不带to的不定式在下列词组后面的不定式不带to;wouldrather...than(宁愿……也不),hadbetter...(最好)，can‘thelpbut...(不得不),cannotbut...(不得不）letalone(更不用说)注意不要混淆

Itis+adj.+ofsb.+to…

adj:(kind,good,nice,unwise,clever,silly,right,wrong,foolish,stupid,careless,considerate,rude,polite,impolite)Itiskindofyoutothinksomuchofus.Itisveryniceofyoutobesoconsiderate.

语法练习Thenewsis______tobetrue.A.sogoodB.toogoodC.verygoodkey:BAdecision______stockbyoneorafewoftheselargecompaniesmayhaveaveryimportanteffectonthemarketasawhole.A.buyingorsellingB.tobuyorsellKey:BIcouldn’tdoanythingbut______thereandhope.A.justsitB.justtositC.justsittingKey:ATherewasnochoicethenbut___aheadwiththeproject.A.goB.togoC.wentKey:BShevoluntarilyleftRussiain1847,____.A.nevertoreturnB.toreturnneverC.neverreturningKey:ATheyoungmanwhosawthecar___intotherivertelephonedthepolicestation.A.plungedB.plungeC.toplungeKay:B考点:不定式的完成时和被动式.Thebuildingproject_____bytheendof2010,willexpandthecity’stelephonenetworktocoveronemillionusers.A.accomplishedB.beingaccomplishedC.tobeaccomplishedD.havingbeenaccomplishedKey:CTranslation你给我们这么多建议,想得真周到.用Itis+adj.+ofsb.+todosth.结构Itissoconsiderateofyoutogiveussomanysuggestions.这件事如此严重,我别无选择只能叫警察.ThisissoseriousamatterthatIhadnochoicebuttoc