2016年江西成考英语情态动词归纳及练习一(2)
- 来源:
- 江西成考网
- 发布日期
- 2017年04月19日
摘要: 情态动词有can(能),may(可以),must(必须),have to(不得不),ought to(应该),dare(敢),used to(过去经常),had better(最好),would rather(宁愿)。在肯定句中它们后边都要接动词原形。在否定句中,can,may,must和dare后边加not;have to和ought to分别在have和ought后加not;used to的否定式可用used not to,也可用didn't use to,但后者用得较多;had bett
You might as well go home now.你还是现在回家为好。
3. must表示“必须”或“应当”、“一定”
3)The formation of snow must be occurring [A] slowly [B] ,in calm air,and at a temperature near [C] the freezing point [D] .
4. have to 加动词原形,表示“不得不”,“必须”,它比must更强调客观
Tom had to work into the deep night everyday to earn a living. 汤姆为了生计每天都得工作到深夜。
5. should 表示“劝告”,“建议”或“义务”时,译作“应当”,或表示“预测”和“可能”
He should take care of his parents as they are old enough not to live on themselves. 由于父母亲老了,不能自理,他应当照顾他们。
He should be there now. 他可能到了。
should have done在虚拟语气中表示“责备或后悔”
6. ought ,只有一种形式,即ought后必须加to,然后跟接动词原形表示“有义务”或“必要”做某事,译为“应当,应该”
4)The traditional goal of science is to discover how things are,not how they ought .
[A] to[B] to be[C] be[D] have been
5)You are quite right;I am inferring in my comments [A] that Mc
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