完整word版must、haveto区别及专项练习.docx

must与haveto的区别情态动词must和haveto都有必须”的含义，它们的用法如下：（一）、must必须"、应该”的用法:1.must表示必须"、应该"例如：① Wemustprotectourenvironment.（我们必须保护环境2. Everyonemustobeytherule.（人人必须遵守制度must的否定形式mustnot表示不应该"、禁止"、不准"语气比较强烈例如：① Youmustn'tspeaklikethat（^应该像那样讲话3. Youmustn'tbelateforschool.你不应该上学退到在回答must的问句时，肯定形式用must来回答，但否定形式用needn'或don'thaveto来回答而不用mustn'深回答例如：①MustIbehomebefore8o'clock?（8前我必须回家吗？）Yes,youmust.No,youneedn't./No,youdon'thaveto.（是，你必须不，你不必二）、haveto表示必须"、不得不"，例如：① Hehastostayinbedfor3or4days.（他必须卧床休息三四天② Wewillhavetogetupearlytomorrow.（明天我们必须早起。

补充：havegotto是haveto的口语形式例如：①I'vegottoleaveforNanjing我不得不去南京Must与haveto的区别：must表示的是说话人的主观看法，而haveto则表示的是客观需要Must一般只有现在时，而haveto有更多的形式① Imustgonow.（主观看法）② Mymotherisill,soIhavetogonow.（客观需要）*Haveto与havegotto的区别：havegotto虽然是haveto的口语形式，但二者在用法上有严格的区别：haveto的前面还可以用情态动词或助动词，而havegotto却不可以；haveto的否定形式为don't/doesn't/didn't+have晚问式为Do/Does/Did+主语+haveto…？而havegotto的否定形式是在have后加not，疑问式把have提前例如：① Wedon'thavetogohome.①°)°"have"gohome?② Wehaven'tgottogohome.J②Haveyougottogohome?专项练习11.----MustIdoitnow?——No,you.A.needn'tB.don'thavetoC.mustn'tD.AorB2.It'snearlyseveno'clock.Jackbehereatanytime.A.mustB.needCshouldDcan.3. WhencanIcomeforthesephotos?Ineedthemtomorrowafternoon.4. Theybereadyby12:00.A.canB.shouldC.mightD.needTheydowellintheexam.A.canbeabletoB.beableto5. C.canabletoD.areableto-CouldItakethisbookout?-No,you.6. A.can'tB.couldn'tC.needn'tD.aren'tYougoandseeadoctoratoncebecauseyou'regotafever.7. A.canB.mustC.dareD.would-CanyouspeakJapanese?-No,I.8. A.mustn'tB.can'tC.needn'tD.maynotEventhetopstudentsinourclasscan'tworkoutthisproblem,soitbeverydifficult.9. A.mayB.mustC.canD.needHeisn'tatschool.Ithinkhebeill.10. A.canB.shallC.mustD.hastoThechildrenplayfootballontheroad.11. A.can'tB.canC.mustn'tD.mustHisarmisallright.Hegoandseethedoctor.12. A.hasnottoB.don'thavetoC.haven'ttoD.doesn'thavetoExcuseme.youpleasepassmethatcup?13. A.DoB.ShouldC.WouldD.Must-Wouldyouliketogoboatingwithus?-Yes,.A.I'dlikeB.IwantC.I'dliketoD.Ido。