UNIT 1 The Changing World TOPIC 3 The world has changed for the better Section C--must用法

《UNIT 1 The Changing World TOPIC 3 The world has changed for the better Section C--must用法》由會員上傳分享，免費在線閱讀，更多相關內容在教育資源-天天文庫。

1、UNIT1TheChangingWorldTOPIC3TheworldhaschangedforthebetterSectionC--must用法WemustsayMrandMrswhenyouspeaktoolderpeople.Youmustn’ttalktooloudly.Completethesentenceswithmustormustn't.1.You_______belateforschool.2.You_______eatinthelibrary.3.You_______rideyourbikei

2、ntheplayground.4.You_______doyourhomework.5.You_______listentotheteacher.mustmustmustn'tmustn'tmustn't(1)表示“必須，應該”，用must提問時，一般不用mustn’t回答，而用needn’t回答。-MustIfinishtheworkbeforedark?-No,youneedn’t.我必須在天黑前完成工作嗎？不，你沒必要。must的用法(2)mustnot(mustn’t)表示強烈禁止，意為“不允許，一定不，

3、不能，不可”（不要譯為“不必”）Youmustn’tgettoschoollate.你上學一定不能遲到。(3)must在肯定句中可以表示“一定要，一定是，一定會”等意思，即表示不可避免性、肯定性、可能性、推定或揣測等意思。Youmustbetiredafteryourlongjourney.你走了這么遠的路，一定很累。辨析：must與havetohaveto往往可與must互換，但兩者的意義和用法有些不同。(1)must表示說話人主觀看法；而haveto強調客觀情況迫使人不得不做某事。(2)must只能表示現(xiàn)在“

4、必須”，表示過去的事情要用hadto。haveto有時態(tài)、人稱和數(shù)的變化。(3)must與haveto的否定意思不同。比如：Youmustn’tdothat.你千萬不能做那件事。Youdon’thavetodothat.你不必做那件事。（相當于needn’t）課堂小測驗Individualactivity一、請找出下列各句中的錯誤并改正過來。1.Theyhavegotlotsofhomeworkstodo.2.Whenyouacceptapresent,youmustusebothhand.3.Youmustn’

5、tbreakanything.It’sbadlucky.4.Therearesomuchpeopleinthelibrary.5.ItwasverydifferentfromaChinawedding.homeworkhandsluckmanyChinese二、用所給詞的適當形式填空。1.I’mtootired.Let’sstop_______(have)arest.2.Hewenttoschoolwithout_______(eat)breakfastthismorning.3.Hecouldn’twait__

6、___(eat)thecake.4.MustI____(do)itnow?5.Thewindowisbroken.Try______(find)outwhobrokeit.tohaveeatingtoeatdotofindJimwenttoschoolwithout_______(have)breakfast.2.Childrenmustn’t_____(walk)acrosstheroadthemselves.3.Nobodycan_____(drop)littereverywhere.4.HenryandAl

7、icewillget_______(marry)inMay.5.Iwastoothirsty,soIcouldn’twait________(drink)theorangejuice.三、用所給動詞的正確形式填空。havingwalkdropmarriedtodrink1.魯比怎樣能洗掉溢出的牛奶？HowcanRuby_______thespilledmilk?2.我的父母總是在晚飯后打掃衛(wèi)生。Myparentsalways______________afterdinnereveryday.3.英國和加拿大的天氣

8、不一樣。TheweatherinEnglandis____________thatofCanada.四、根據(jù)漢語意思完成句子。washupdosomecleaningdifferentfrom4.在中國你必須用雙手接受禮物。InChinayoumustuse____hands_______apresent.5.影迷們沖上前去與這位電影明星握手。Thefansrushedf