试题与答案

一列沿x轴正方向传播的简谐横波,在t = 0时刻波刚好传播到x = 6m处的质点

题型:填空题

题目:

一列沿x轴正方向传播的简谐横波,在t = 0时刻波刚好传播到x = 6m处的质点A,如图所示,已知波的传播速度为48m/s.请回答下列问题:

①从图示时刻起再经过        s,质点B第一次处于波峰;

②写出从图示时刻起质点A的振动方程为        cm.

答案:

① 0.5 (2分) ②(cm) (2分)

题目分析:①根据波的传播原理,是质点的振动形式在介质里匀速传播,x=0m,处的质点处于波峰位置,所以当它的振动形式传播到B点时,B点第一次出现在波峰,用时;②由图知质点A在t=o时刻处于平衡位置且向下振动,,所以质点A的振动方程为(cm)。

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题型:阅读理解

       How do you get a man to do his share of the housework? If you are like most women, you’ve faced this question the hard way.

A man will enjoy a clean, orderly house, but he usually won’t make the effort to clean or organise it. This doesn't mean that a woman has to do all the housework:; she may have to manage many of the household duties, and request her partner’s participation(参与). A woman can often say that men and women should take equal responsibility(责任) for housework.

Very few men are raised to be fully responsible for housework, and many men look on housework as women’s work. On the other hand, most men will readily work around the yard, make repairs and complete projects on weekends or evenings, and it’s important that you give your man appreciation for those things, too. Most men will take on a little additional housework around the house if asked politely. They are even more likely to do housework if they can choose what they want to do, and do it without being monitored.

Here’s the key: men want to feel that they are doing housework either because they want to do a task, or because they simply want to please their women. Men are much less likely to take on household tasks they consider uninteresting and unimportant. In other words, men are likely to do a household task just for the good of the house.

小题1: The passage is mainly about how to _____.

A.get men to take on some housework

B.get men to serve their families

C.praise men’ housework

D.make men do all the housework小题2:According to the passage, a man_____.

A.is willing to do housework

B.likes to be told to do housework

C.is taught to be responsible for housework from childhood

D.likes a clean house but doesn’t make efforts to clean it小题3:In order to get men to do some housework, women should often_____.

A.order them to do their share

B.ask them to do some housework politely

C.blame men’s laziness

D.monitor men’s work小题4:According to the passage, the underlined sentence in the last paragraph means that men won’t _____.

A.work without any payment

B.do unimportant household tasks

C.do housework without women’s praise

D.please their wives小题5: According to the passage, which of the following would a husband most probably like to do?

A.Cleaning the table.

B.Doing some sewing.

C.Painting the fence.

D.Asking his wife to work on the yard.

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