1.Tofindabestfriendisdifficult.2.Ineedtosleepfor8hourseverynight.3.Iaskedhimtocomeover.4.Ihaveanimportantmeetingtoattend.5.Hisaimwastocheermeup.6.Youneedtoapologizequicklytoavoidlosingagoodfriend.1.Tofindabestfriendisdifficult.2.Ineedtosleepfor8hourseverynight.3.Iaskedhimtocomeover.4.Ihaveanimportantmeetingtoattend.5.Hisaimwastocheermeup.6.Youneedtoapologizequicklytoavoidlosingagoodfriend.主语1.Tofindabestfriendisdifficult.2.Ineedtosleepfor8hourseverynight.3.Iaskedhimtocomeover.4.Ihaveanimportantmeetingtoattend.5.Hisaimwastocheermeup.6.Youneedtoapologizequicklytoavoidlosingagoodfriend.主语宾语1.Tofindabestfriendisdifficult.2.Ineedtosleepfor8hourseverynight.3.Iaskedhimtocomeover.4.Ihaveanimportantmeetingtoattend.5.Hisaimwastocheermeup.6.Youneedtoapologizequicklytoavoidlosingagoodfriend.主语宾语宾语补足语1.Tofindabestfriendisdifficult.2.Ineedtosleepfor8hourseverynight.3.Iaskedhimtocomeover.4.Ihaveanimportantmeetingtoattend.5.Hisaimwastocheermeup.6.Youneedtoapologizequicklytoavoidlosingagoodfriend.主语宾语宾语补足语定语1.Tofindabestfriendisdifficult.2.Ineedtosleepfor8hourseverynight.3.Iaskedhimtocomeover.4.Ihaveanimportantmeetingtoattend.5.Hisaimwastocheermeup.6.Youneedtoapologizequicklytoavoidlosingagoodfriend.主语宾语宾语补足语定语表语1.Tofindabestfriendisdifficult.2.Ineedtosleepfor8hourseverynight.3.Iaskedhimtocomeover.4.Ihaveanimportantmeetingtoattend.5.Hisaimwastocheermeup.6.Youneedtoapologizequicklytoavoidlosingagoodfriend.主语宾语宾语补足语定语表语状语1.theto-infinitiveusedasthesubject1.theto-infinitiveusedasthesubjectToobeylawiseveryone'sduty.1.theto-infinitiveusedasthesubjectToobeylawiseveryone'sduty.Totalkwithyourmouthfullisrude.1.theto-infinitiveusedasthesubjectToobeylawiseveryone'sduty.Totalkwithyourmouthfullisrude.Tofinishtheworkinsuchashorttimeisimpossible.1.theto-infinitiveusedasthesubjectToobeylawiseveryone'sduty.Totalkwithyourmouthfullisrude.Tofinishtheworkinsuchashorttimeisimpossible.1.theto-infinitiveusedasthesubjectToobeylawiseveryone'sduty.Totalkwithyourmouthfullisrude.Tofinishtheworkinsuchashorttimeisimpossible.1.theto-infinitiveusedasthesubjectToobeylawiseveryone'sduty.Totalkwithyourmouthfullisrude.Tofinishtheworkinsuchashorttimeisimpossible.1.Is________necessarytocompletethedesignbeforeNationalDay?A.thisB.thatC.itD.he2.Todoasmanyexercisesaspossible______necessarybeforeexam.A.areB.isC.haveD.has3.It’sagoodhabit______breakfastveryday.A.hadB.haveC.hasD.tohave[典型例题]1.Is________necessarytocompletethedesignbeforeNationalDay?A.thisB.thatC.itD.he2.Todoasmanyexercisesaspossible______necessarybeforeexam.A.areB.isC.haveD.has3.It’sagoodhabit______breakfastveryday.A.hadB.haveC.hasD.tohave[典型例题]1.Is________necessarytocompletethedesignbeforeNationalDay?A.thisB.thatC.itD.he2.Todoasmanyexercisesaspossible______necessarybeforeexam.A.areB.isC.haveD.has3.It’sagoodhabit______breakfastveryday.A.hadB.haveC.hasD.tohave[典型例题]1.Is________necessarytocompletethedesignbeforeNationalDay?A.thisB.thatC.itD.he2.Todoasmanyexercisesaspossible______necessarybeforeexam.A.areB.isC.haveD.has3.It’sagoodhabit______breakfastveryday.A.hadB.haveC.hasD.tohave[典型例题]2.theto-infinitiveusedastheobject常见的后接不定式作宾语的动词有：decide/determine,learn,want,expect/hope/wish,refuse,manage,care,pretend,offer,promise,choose,plan,agree,ask/beg,help…2.theto-infinitiveusedastheobje...
