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1、 九年级(全)九年级(全)Units910第一部分教材知识研究第一部分教材知识研究练讲重难点考点一考点一 prefer的用法的用法考点二考点二 be supposed to的用法的用法考点三考点三 worth的用法的用法考点四考点四 Itsadj.to do sth.句型句型重难点精析练讲重难点 prefer的用法的用法 考点一考点一 I prefer movies that can cheer me up.我更喜欢我更喜欢可以使我振奋的电影。可以使我振奋的电影。(Unit 9 P67) 1. Even on holidays, Mr. Wang prefers _ to doing noth
2、ing in the morning.Aread a newspaper Breading a newspaper Cto read a newspaper Dreads a newspaper B【考点抢测【考点抢测】【满分点拨【满分点拨】prefer的搭配的搭配prefer + n./pron.更喜欢更喜欢preferto 比起比起更喜欢更喜欢prefer to do sth.宁愿做某事宁愿做某事prefer doing sth. to do sth. 喜欢做喜欢做胜过做胜过做prefer to do sth. rather than do sth. 宁愿做宁愿做而不愿做而不愿做 如:如:
3、The southerners prefer rice, and the northerners prefer noodles. 南方人比较喜欢吃米饭,南方人比较喜欢吃米饭,北方人更喜欢吃面条。北方人更喜欢吃面条。 He prefers coffee to tea. 与茶相比,他更喜欢咖啡。与茶相比,他更喜欢咖啡。 My younger brother prefers playing the piano to playing football. 比起踢足球,我弟弟更喜欢弹钢琴。比起踢足球,我弟弟更喜欢弹钢琴。 He prefers to telephone her rather than wr
4、ite to her. 他宁愿给她打电话,也不愿写信。他宁愿给她打电话,也不愿写信。 be supposed to的用法的用法考点二考点二【考点抢测【考点抢测】2. Chinese are supposed_ hands when they meet for the first time. Ato shake Bshaking Cshook DshakeB Youre supposed to shake hands.你们应该握手你们应该握手(Unit 10 P73)【满分点拨【满分点拨】 be supposed to意为意为“应该应该”,后接动词原形,后接动词原形,用来表示劝告、建议、义务、责
5、任等。相当于用来表示劝告、建议、义务、责任等。相当于should或或ought to。其常见的用法有:。其常见的用法有: be (not) supposed to do sth. 意为意为“(不不)应该做应该做某事某事”。 当主语是当主语是“人人”时,表示时,表示“应该;被期望应该;被期望”(相当于情态动词相当于情态动词should)。如:。如: Everyone is supposed to wear a seatbelt in the car. 每个人乘车都应该系安全带。每个人乘车都应该系安全带。 当主语是当主语是“物物”时,表示时,表示“本应;本该本应;本该”(某事本应发生而没发生某事本
6、应发生而没发生)。如:。如: The train was supposed to arrive half an hour ago. 火车本应在半小时前到达。火车本应在半小时前到达。考点三考点三 worth的用法的用法 It is worth the trouble if you want to understand another culture.如果你想理解另一种文化,如果你想理解另一种文化,(解决解决)麻麻烦是值得的。烦是值得的。(Unit 10 P76)【考点抢测【考点抢测】3. We all think that this talk on air pollution is worth
7、_. Alistened to Bto listen to Clistening to Dlisten toC【满分点拨【满分点拨】worthbe worth doing sth.意为意为“值得做某值得做某事事”,使用了主动结构表被动意义,使用了主动结构表被动意义be worth + 价钱,意为价钱,意为“值多少钱值多少钱” be worth + 名词,意为名词,意为“值得值得” 如:如: I think the film is worth seeing twice. 我认为这我认为这部电影值得看两遍。部电影值得看两遍。 The picture is worth 30 dollars. 这幅画
8、值这幅画值30美美元。元。 It isnt worth the trouble. 不值得费那个事。不值得费那个事。 Itsadj.to do sth.句型句型 考点四考点四【考点抢测【考点抢测】4. Its necessary _ us to exercise if we want to keep fit. A. for B. to CwithDbyA Yes, its very impolite to keep others waiting.是是的,让别人一直等是不礼貌的。的,让别人一直等是不礼貌的。(Unit 10 P76 ) 在在“It isadj.to do sth.”句型结构中,句型
9、结构中,it 是是形式主语,形式主语,to do sth.为真正的主语。如:为真正的主语。如: It is hard to go there on foot.步行去那里是困步行去那里是困难的。难的。 该结构还可带上动词不定式的逻辑主语,通常该结构还可带上动词不定式的逻辑主语,通常引出逻辑主语的介词有两个:引出逻辑主语的介词有两个:of与与for,构成以下两,构成以下两种常考句型:种常考句型: 【满分点拨【满分点拨】 It isadj.of sb.to do sth.表示表示“对于某人对于某人来说,做某事是来说,做某事是的的”。此处形容词常是描述不定。此处形容词常是描述不定式行为者的性格、品质等
10、的词。如:式行为者的性格、品质等的词。如:kind, good, nice, right, wrong, clever, careless, polite, foolish等。如:等。如: Its very nice of you to offer me some advice.你你能给我一些建议真好。如:能给我一些建议真好。如: Its necessary for her to do enough exercise to keep healthy.对她来说为了保持健康做足够的运动是对她来说为了保持健康做足够的运动是必要的。必要的。 拓展拓展 be worthy of doing sth.值得
11、做某事值得做某事 如:如:It is worthy of visiting the Imperial Palace.参观故宫是值得的。参观故宫是值得的。试题在线1. My mother prefers lemons _ apples, because she likes sour fruit. Ato Bwith CforDby2. Im sleepy. I prefer _ at home to going out for a walk.Ato sleep Bsleep Cslept DsleepingDA3. You are supposed _ hard if you want to get better grades. Aworked Bto work Chave worked Dworking4. Its really kind _ you to help me with my math homework. A. for B. of Cwith Dto BB