题目内容

11.-I went to the Australia Embassy yesterday to apply for a visa.
--Oh,you _____ that because you can apply on line.(  )
A.don't need to doB.mustn't do
C.can't have doneD.needn't have done

分析 -昨天我去澳大利亚大使馆申请签证了.
-哦,你本来不必如此的,因为网上也可以办的.

解答 答案:D.
根据题干中的时间状语yesterday可知办签证这事发生在过去,再由结构"情态动词+have done"表"对过去情况的推测",结合这两者可排除选项A和B.C选项can't have done表"过去肯定没有做某事"在此意为"昨天肯定没有去申请签证",前后文自相矛盾,故也排除.D选项needn't have done表"本没有必要做某事却做了".根据because从句可知,网上可以办理签证,所以"你昨天本来没有必要去大使馆办理的",与上文相互照应,语意吻合,符合逻辑.故选D.

点评 情态动词与过去完成式连用,表"对过去情况的推测",其结构为"情态动词+have done".如:can't have done表"过去肯定没有做某事";could have done表"本来能做成的却没有做成";must have done"过去肯定做了某事";should/ought to have done表"本该做某事却没有做";shouldn't/oughtn't to have done表"本不该做某事却做了";needn't have done表"本没有必要做却做了"

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相关题目
6.Number sense is not the ability to count.It is the ability to recognize a (1)change   in number.Human beings are born with this ability.(2)Surprisingly,experiments show that many animals are,too.For example,many birds have good number sense.If a nest has four eggs and you remove one,the bird will not (3)notice.However,if you remove two,the bird (4)generally leaves.This means that the bird knows the (5)difference   between two and three.
Another interesting experiment showed a bird's (6)amazing   number sense.A man was trying to take a photo of a crow (乌鸦) that had a nest in a tower,but the crow always left when she saw him coming.The bird did not (7)return   until the man left the tower.The man had an (8)idea.He took another man with him to the tower.One man left and the other stayed,but they did not(9)fool   the bird.The crow stayed away until the second man left,too.The experiment was (10)repeated   with three men and then with four men.But the crow did not return to the nest until all the men were (11)gone.It was not until five men went into the tower and only four left that they were (12)finally   able to fool the crow.
How good is a human's number sense?It's not very good.For example,babies about fourteen months old almost always notice if something is taken away from a(13)small   group.But when the number goes beyond three or four,the children are (14)often fooled.
It seems that number sense is something we have in common with many animals in this world,and that our human (15)ability   is not much better than a crow's.

1.A.riseB.patternC.changeD.trend
2.A.ImportantlyB.SurprisinglyC.DisappointedlyD.Fortunately
3.A.surviveB.careC.hatchD.notice
4.A.generallyB.sincerelyC.casuallyD.deliberately
5.A.distanceB.rangeC.differenceD.interval
6.A.amazingB.annoyingC.satisfyingD.disturbing
7.A.relaxB.recoverC.reactD.return
8.A.appointmentB.excuseC.ideaD.explanation
9.A.foolB.hurtC.catchD.kill
10.A.reportedB.repeatedC.designedD.approved
11.A.confusedB.goneC.tiredD.drunk
12.A.graduallyB.luckilyC.strangelyD.finally
13.A.singleB.smallC.localD.new
14.A.seldomB.temporarilyC.merelyD.often
15.A.sightB.natureC.abilityD.belief.

Tips for Teaching Kids Responsibility

Your best friend has a teenager who helps with housework without being asked. Your cousin has a one-year-old child that puts her bottle in the sink when she finishes the milk, but no reminders are needed. 1. Raising helpful, good kids who know how to make a sandwich is not a fantasy! The following tips can give you a better chance of raising a responsible child who then grows into a responsible adult.

2. You can’t suddenly spring responsibility on a teenager and expect he will know how to follow through. He needs time to practice and totally understand what responsibility means.

Let kids help you. Don t complain when it's time to do housework. Smile and invite your son to help. 3. He will take these good feelings and learn to take ownership of his home and feel pride in keeping it up.

4. Make responsibilities age appropriate. You can show how to complete small tasks in daily life and perform them at a child’s skill level. For example, if your kid wants a snack, show him where the apples are and how to wash one off.

Teach your child consequences. Learning to take care of his things also helps a child develop a sense of responsibility for his actions. Get your son to clean up after an art project, and inform him that he won^ be able to play with his crayons the next day if he leaves a messy table. 5. The more you carry out the rules, the more likely he is to clean up without being asked.

A. Have a sense of responsibility.

B. Why do they make a sandwich for kids?

C. Show kids how to perform responsibility.

D. Where do these wonderful children come from?

E. Start to teach responsibility to kids early.

F. When your child is invited to participate, he feels valued.

G. Then take away his supplies if he does not take his responsibility.

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