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1、重點(diǎn)詞匯拓展重點(diǎn)詞匯拓展備一備一：must，have to，have got to must表示必須，必要；表示必須，必要；have (got) to用來(lái)表示強(qiáng)烈的責(zé)任感和必要性，用來(lái)表示強(qiáng)烈的責(zé)任感和必要性，must可以可以與與have (got) to互換，但互換，但must語(yǔ)氣比其更強(qiáng)烈語(yǔ)氣比其更強(qiáng)烈,此外，此外，must和和have (got) to還有以下幾點(diǎn)不同：還有以下幾點(diǎn)不同： must表說(shuō)話(huà)人的主觀看法，而表說(shuō)話(huà)人的主觀看法，而have to往往強(qiáng)調(diào)客觀需要。往往強(qiáng)調(diào)客觀需要。We must work hard to make great progress(主觀主觀) 我們必

2、須努力工作取得更大進(jìn)步。我們必須努力工作取得更大進(jìn)步。 Its getting dark；I have to go home now(客觀客觀) 天黑了，現(xiàn)在我得回家了。天黑了，現(xiàn)在我得回家了。must一般只有現(xiàn)在時(shí)，而一般只有現(xiàn)在時(shí)，而have to則隨著則隨著have的變化有更多的變化有更多的時(shí)態(tài)。的時(shí)態(tài)。二者的否定意義不同：二者的否定意義不同：dont have to“不必不必”， mustnt “不準(zhǔn)，禁止，不可以不準(zhǔn)，禁止，不可以”。You mustnt leave now! 你現(xiàn)在不得離開(kāi)。你現(xiàn)在不得離開(kāi)。You dont have to leave now 你現(xiàn)在不必要離開(kāi)。你現(xiàn)

3、在不必要離開(kāi)。 詢(xún)問(wèn)對(duì)方的意愿時(shí)應(yīng)用詢(xún)問(wèn)對(duì)方的意愿時(shí)應(yīng)用must。 Must I tell him all about this? 我一定要將一切都告訴他嗎我一定要將一切都告訴他嗎? Must I wash the clothes at once? 我一定要馬上洗衣嗎我一定要馬上洗衣嗎?(5) must (發(fā)生于過(guò)去的發(fā)生于過(guò)去的) 不巧不巧；偏偏；偏偏Just when I was busyThe neighbor must come and chatter正當(dāng)我忙碌的時(shí)候，鄰居偏偏過(guò)來(lái)聊天正當(dāng)我忙碌的時(shí)候，鄰居偏偏過(guò)來(lái)聊天。1) l often see lights in that emp

4、ty houseDo you think I _ report it to the police? (2004陜西陜西) AShould Bmay Cwill Dcan(2) Ill tell Mary about her new job tomorrow You _ her last week (2004福建福建) Aought to tell Bwould have told Cmust tell Dshould have told (3) Children under l2 years of age in that country _ be under adult supervision

5、 when in a public library (2004上海上海) Amust Bmay CCan Dneed ADA1What do you think his idea has _ ? Aagreed on Bbeen based on Cbased on Dagreed with2Not only _ interested in football but _ beginning to show an interest in it Athe teacher himself is；all his students are Bthe teacher himself is；are all

6、his students Cis the teacher himself；are all his students Dis the teacher himself；all his students are3These teenagers dont know much of the world yet；thats why they were so easily _ Ataken in Btaken up Ctaken off Dtaken on4Students should be encouraged to finish theirhomework _ Aof themselves Bof t

7、heir own Cfor their own Don their own點(diǎn)擊高考點(diǎn)擊高考BDAD5 Be careful not to drop the Tang Dynasty vase Yes，we cant be _ Atoo careful Bvery careful Ctoo careless Dcareless enough6When the teacher asked the student why he had not come to class the day beforehe _an excuse Ainvented BCreate Cdiscovered Dsaid7In every years Spring Festivalthe CCTV will hold a great concert to _ the new year Awelcome Bkeep Ccelebrate Dmemorize8We have done as much as we can _ our classroom clean Amake Bto make Cmaking Dbe makingAACB