Infinitive动词不定式知识梳理知识梳理不定式在句中作用不定式在句中作用不定式在句中作用不定式在句中作用不定式在句中作用注意不定式在句中作用动词不定式时态㈡.进行式(tobedoing)动词不定式时态动词不定式语态动词不定式语态动词不定式语态动词不定式语态不定式其他使用措施2.和否认词连用1.不定式完毕和进行式不定式其他使用措施3.不定式在某些特殊句型中运用：4.动词不定式不带to特殊状况：(2)表达“只好,不得不”but之后：(can’t/couldnotbut,can’t/couldnothelpbut,can’tchoosebut)1)It’sraininghard.Ican’thelpbutstayathome.2)Wecouldnotbutfacethereality.3)Ican’tchoosebutfinishthework.HomeworkHomework不定式常用句型Itisadj.forsb.to…不定式常用句型Thepurposeofnewtechnologiesistomakelifeeasier________itmoredifficult.A.notmakeB.nottomakeC.notmakingD.donotmake2.I’veworkedwithchildrenbefore,soIknowwhat______inmynewjob.A.expectedB.toexpectC.tobeexpectingD.expects3.CharlesBabbageisgenerallyconsidered_____thefirstputer.5.Theboywantedtoridehisbicycleinthestreet,buthismothertoldhim______.7.Therearefivepairs___,butI’matalosswhichtobuy.9.Withalotofdifficultproblems________,thenewly-electedpresidentishavingahardtime.11.Inordertogainabiggershareintheinternationalmarket,manystaterunpaniesaretrying_____theirproductsmorepetitive.