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1、Should与OughttoI.复习1. Some people can live without meat. 2. May I use the phone please, Mr. White? 3. Could you tell me something about the book? 4. You must not smoke here. 5. What flavor would you like, chocolate or strawberry? 6. We should put rubbish in
2、 the bin. 7. She shouldn’t discuss it. 8. Should we discuss it now? / Ought we to discuss it now? -- Yes, we should/ ought to. -- No, we shouldn’t/ ought not to. 9. The students ought not to sleep in the class. 10. Tom ought to hand in his homework on time.
3、II.二者区别: ShouldOughtto意思表示主观看法,有“劝告、建议”的意思,即“按我的想法该如何”强调主观看法,语气比较委婉.一些建议,劝说时,译作“应当”比should 语气强,更多反映客观情况,“有义务”或“必要”做某事,有时带有责备或督促的意味,译为“应当,应该” .否定表示某动作不一定要做表示做某事一定是错误的虚拟语态√× 时态ShouldOughtto肯定句sb.shoulddosth.sb.oughttodosth.否定句sb.shouldnotdosth.sb.oughtnott
4、odosth.一般疑问句Shouldsb.dosth.?Oughtsb.todosth.?简略回答Yes,sb.shoulddosth.No,sb.shouldnot/shouldn’tdosth.Yes,sb.oughttodosth.No,sb.oughtnot/oughtn’ttodosth.should和oughtto在用法上要注意以下3点:1.没有人称和数的变化。2.后面接动词原形。3.可用来构成否定句、疑问句及简明答语。ought to 是唯一一个可加to的情态动词! ought to具体用法
5、: 1. (表示义务、责任等) 应当, 应该 You ought to work harder than that. 2. (表示劝告、建议等) 应该, You don't look well. You ought to go to see the doctor. 3. (表示猜测、期望) 总应该,理应It ought to be a fine day tomorrow morning. 4. “ought to + have + 过去分词”表示过去应做某事而实际未做 You oug
6、ht to have told me that (but you didn't).这时ought to和should可以互换使用。 Should具体用法:1.表义务意为”应该”Youshoulddowhatyourparentstellyou.Heshouldn’tstayupsolate.2.表温和的建议或指正Thisnameiswrong;itshouldbespelledSymthe,notSmith.3.表期待.意为”可能”Thatshouldbeeasy.Sheshouldbehereinaminu
7、te.4.可用于完成时,完成时表示过去应该做而未做的事情Attheageofthirty-fiveIshouldhaveunderstood.5.用于第一人称疑问句询问对方意愿,但与其较委婉温和ShouldIopenthewindow?6.表惊讶等感情I’msurprisedthatheshouldsayso.HowshouldIknow?7.表委婉语气,常与say,think等动词连用Ishouldsayheisoverthirty.Ishouldthinkitisagoodfilm.III.练习单项选择1
8、. We ______ help the people in need. A. can B. ought to C. should D. could 2. One ______ cross the street against the red light. A. ought not B. ought to not C. shouldn’t to D. oughtn’t