Should与Oughtto的讲解和练习.pdf

《Should与Oughtto的讲解和练习.pdf》由会员分享，可在线阅读，更多相关《Should与Oughtto的讲解和练习.pdf（4页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、 1 Should 与 Ought to I.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 the bin.7.She shouldnt discuss it.8.Should we dis

2、cuss it now?/Ought we to discuss it now?-Yes,we should/ought to.-No,we shouldnt/ought not to.9.The students ought not to sleep in the class.10.Tom ought to hand in his homework on time.II.二者区别：Should Ought to 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“

3、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 Should Ought to 肯定句 sb.should do sth.sb.ought to do sth.否定句 sb.should not do sth.sb.ought not to do sth.一般疑问句 Should sb.do sth.?Ought sb.to do sth.?简略回答 Yes,sb.should do sth.No,sb.should not/shouldnt do sth.Yes,sb.ought to do sth.No,sb.

4、ought not/oughtnt to do sth.2 should 和 ought to 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: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 dont 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

5、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 ought to have told me that(but you didnt).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”You should do what your parents tell you.He shouldnt stay up so late.2.表温和的建议或指正 This name is wrong;it should be spelled Symthe,not Smith.3.

6、表期待.意为”可能”That should be easy.She should be here in a minute.4.可用于完成时,完成时表示过去应该做而未做的事情 At the age of thirty-five I should have understood.5.用于第一人称疑问句询问对方意愿,但与其较委婉温和 Should I open the window?6.表惊讶等感情 Im surprised that he should say so.How should I know?7.表委婉语气,常与 say,think 等动词连用 I should say he is ov

7、er thirty.I should think it is a good film.3 III.练习 单项选择 1.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.shouldnt to D.oughtnt to 3.I missed the train.You _ me that the timetable had changed.A.should to tell

8、 B.should have told C.ought have to tell D.ought have told 4.We _ throw the rubbish into the bin.A.should B.ought to C.may D.would 5.Parents _ raise their children until they are 18.A.should B.ought to C.may D.would 6.They _ discuss it now.A.ought to not B.not ought to C.dont ought to D.ought not to

9、 7._ he _ his parents about this problem?A.Should,listens B.Ought,listens to C.Should,listen to D.Ought,listen to 8.He _ here on time.A.should came B.should come C.should comes D.should coming 9.You _ buy the ticket before getting on the train.A.ought B.should C.mustnt D.cant 10.To protect our eyes,

10、we _ keep enough distance from books when we read them.A.shouldnt B.ought not C.ought not to D.ought to 11.Tom _ say sorry to Tracy because he broke her bike.A.should B.should C.mustnt D.cant 12.He said such a thing _ be allowed happen.A.oughtnt to B.might not C.may not D.neednt 13.Ought we to clean

11、 the classroom now?-Yes,we _.A.ought B.should C.must D.can 4 句型转换 a)We should take good care of the young tree.(改为一般疑问句)_ we _ good care of the young trees?b)You ought to turn off the lights when you leave the room.(改为一般疑问句)_ I _ _ off the lights when I leave the room?c)You ought to put your bike un

12、der the tree.(改为否定句)You _ _ _ _ your bike under the tree.d)The child should drink some orange juice.(改为否定句)The child _ _ _ orange juice.e)They should arrive at the station before 7 oclock.(就划线部分提问)_ _ _ _ at the station?根据要求改写句子 a)You should do your homework carefully.(用 ought to 改为同义句)_ b)Tom should look after his little sister.(改为一般疑问句)_ c)They ought to help their parents do the housework.(改为一般疑问句)_ d)I ought to buy a new bike.(改为否定句)_ e)Lucy should get to school on time.(根据划线部分提问)_ f)Should we eat a lot of junk food?(作否定回答)_ g)I have to finish my homework before going to bed.(改为否定句)_