馨雅资源网https://www.babyxy.cn九年级英语专题复习非谓语动词专题一、动词不定式（主动，经常性和将来的意义）1.动词不定式作宾语。1)在动词want,hope,wouldlike,decide,wish,choose,try,need等后常用动词不定式作宾语。Ihope______(hear)fromyousoon.2)think/find/feel/makeit+adj+todosthHefounditdifficult_______(get)tosleep.3).stoptodosth/stopdoingsthstoptodosth停下来去做某事stopdoingsth停止正在做的事。Afterworkingforalongtime,Hehastostop_______(have)arest.Hewasverytired,sohehadtostop______(work).[来源:Zxxk.Com]2.动词不定式作宾语补。1).带to的不定式作宾补的动词有：ask/like/wouldlike/teach/tell/want/help+sb+todosthPleaseaskhim_________(come)quickly.2).省掉to的不定式作宾补的动词有：let/make/hear/see/notice/have/watch+sb+dosth注：省掉to的不定式的句子变被动语态时，需要还原to.Hemadethebaby_______(stop)crying.Thebabywasmade___________crying.3.动词不定式作主语1).动词不定式常可用作句子的主语时，谓语动词用单数形式。2).常用it作形式主语，而将不定式放在句子后面。Todosth+谓语动词+adj/n=It+谓语动词+adj/n+todosthTogetaninjectionisalittlepainful._____alittlepainful________aninjection4.动词不定式作定语动词不定式作定语放在被修饰词之后名词或代词+todo(介词)注：若构成的不定式的动词为不及物动词时，其后加上相应的介词。Iwantapentowrite______.Iwantapieceofpapertowrite______.5.动词不定式与疑问词连用疑问词+todosth注：在宾语从句中，若主从句的主语一致时，宾语从句可简化为“疑问词+todosth”.CanyoutellmehowIcangettothehospital?Canyoutellme_____________thehospital.6.动词不定式可作状语1).动词不定式可作目的状语在come/go/leave后面接动词不定式作目的状语。Hecamehere______(get)hisbook.2).动词不定式可作原因状语表语形容词（sorry/sad/happy/glad/afraid/pleased）后与动词不定式连用作原因学魁网http://www.xuekuiw.com馨雅资源网https://www.babyxy.cn状语[来源:Z.xx.k.Com]Hewasglad_______(see)hiswife.Hetoldme________(notstay)here.9.动词不定式符号的省略和保留情况。1).动词不定式符号的省略情况若两个或两个以上的不定式并列时，第一个不定式符号不能省略，其余的省掉to.但两者有对比关系时，to都不能省略。Edison’smothertaughthimtowriteandread....
