七年级英语人教版 课件

重点词汇拓展重点词汇拓展备一备一：must，have to，have got to must表示必须，必要；表示必须，必要；have (got) to用来表示强烈的责任感和必要性，用来表示强烈的责任感和必要性，must可以可以与与have (got) to互换，但互换，但must语气比其更强烈语气比其更强烈,此外，此外，must和和have (got) to还有以下几点不同：还有以下几点不同： must表说话人的主观看法，而表说话人的主观看法，而have to往往强调客观需要。往往强调客观需要。We must work hard to make great progress(主观主观) 我们必须努力工作取得更大进步。我们必须努力工作取得更大进步。 Its getting dark；I have to go home now(客观客观) 天黑了，现在我得回家了。天黑了，现在我得回家了。must一般只有现在时，而一般只有现在时，而have to则随着则随着have的变化有更多的变化有更多的时态。的时态。二者的否定意义不同：二者的否定意义不同：dont have to“不必不必”， mustnt “不准，禁止，不可以不准，禁止，不可以”。You mustnt leave now! 你现在不得离开。你现在不得离开。You dont have to leave now 你现在不必要离开。你现在不必要离开。 询问对方的意愿时应用询问对方的意愿时应用must。 Must I tell him all about this? 我一定要将一切都告诉他吗我一定要将一切都告诉他吗? Must I wash the clothes at once? 我一定要马上洗衣吗我一定要马上洗衣吗?(5) must (发生于过去的发生于过去的) 不巧不巧；偏偏；偏偏Just when I was busyThe neighbor must come and chatter正当我忙碌的时候，邻居偏偏过来聊天正当我忙碌的时候，邻居偏偏过来聊天。1) l often see lights in that empty houseDo you think I _ report it to the police? (2004陕西陕西) 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 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 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 their own Cfor their own Don their own点击高考点击高考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