名词后面是to do还是to doing.ppt

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1、如何判断一个名词后面的to是介词还是不定式符号一、不定式（todo）作定语时，不定式和被修饰名词之间的逻辑关系有：①主谓关系②动宾关系③动状关系④同位关系名词+todo主谓关系1.Tomisthefirstmantocome.2.Ihavealettertobewritten.动宾关系1.Ihavealettertowrite.2.Thisisacomfortablechairtositon.动状关系(被修饰名词在逻辑上是不定式动作的时间、地点、方式或原因状语。)1.It'stimetogohome.(time,year,mont

2、h,day,hour,season,chance)2.Thisisnotagoodplacetobuildahouse.3.Thereisnoreasontogiveup.4.Hefoundacleverwaytosolvetheproblem.同位关系Hehadtogiveuphisplantobuildanewhouse.介词to表示“针对关系、对象关系、方向关系”todoing常见的介词(todoingsth)的短语搭配thekeyto(unlocking)thedoortheanswerto(answering)thequ

3、estionthesolutionto(solving)theproblemthebridgeto(gaining)theknowledgethewayto(getting)theschoolway表示“道路”(path,road)的意思时，后面的to是介词。eg.Despitethegreateffortsmade,thereisalongwaytogotoachievingthegoalofcontrollngthewaterpollution.Consolidation1.Hewasthelastonetogotochurc

4、hthismorning.2.SinceMaryrefusestodothehouseworkatall,soherfamilyhasplentyofhousework________(do)byothers.3.Springisaverygoodseasontoplanttrees.4.Parisusedtoberegardedasthemostromanticplacetolive.Parisusedtoberegardedasthemostromanticcitytolivein.5.Thiscouldbeastepping

5、stonesonthewayto________(achieve)aharminioussociety.tobedoneachievingThanks