问题 选择题

如图所示,O为弹簧振子平衡位置,将振子拉至A处后放手,振子可沿水平光滑杆在A、B间作简谐振动,则振子(  )

A.从B→O回复力不断减小,速度不断减小

B.在O处速度最大

C.从B→O回复力不断增大,速度不断增大

D.在B处速度最大

答案

答案:B

阅读理解

阅读理解。

     Some people make you feel comfortable when they are around. You spend an hour with them and

feel as if you have known them half your life. These people have something in common. And once we

know what it is, we can try to do it ourselves.

     How is it done? Here are several skills that good talkers have. If you follow the skills, they'll help

you put people at their ease, and make friends with them quickly.

    First of all, good talkers ask questions. Almost anyone, no matter how shy he is, will answer a

question. One well-known businesswoman says, "At business lunches, I always ask people what they

did that morning. It's a common question, but it will get things going." From there you can move on to

other matters-sometimes to really personal questions. And how he answers will let you know how far

you can go.

     Second, once good talkers have asked questions, they listen to the answers. This point seems clear,

but it isn't. Your questions should have a point and help to tell what sort of person you are talking to.

And to find out, you really have to listen carefully and attentively.

Real listening at least means some things. First it means not to change the subject of conversation. If

someone sticks to one topic, you can take it as a fact that he's really interested in it. Real listening also

means not just listening to words, but to tones of voice. If the voice sounds dull, then, it's time for you

to change the subject.

     Finally, good talkers know well how to deal with the occasion of parting. If you're saying good-bye,

you may give him a firm handshake and say, "I've really enjoyed meeting you." If you want to see that

person again, don't keep it a secret. Let people know what you feel, and they may walk away feeling as

if they've known you half their life.

1. Asking questions might be a quite good and suitable way _______.

A. for you to make more and more new friends

B. to begin your business talks

C. to get the conversation going smoothly

D. for you to make a deep and lasting impression on others

2. After having asked somebody a question, it'll be polite of you to _______.

A. make clear what kind of person he is

B. listen to his reply attentively

C. wait quietly and patiently for his answer

D. go on asking him more questions

3. Generally speaking, good talkers are persons who _______.

A. are good at making any topic interesting

B. never talk too much or too little

C. always speak in a gentle way

D. know how and when they should change the topic of the talk

4. If you really take delight in meeting someone again, _______.

A. you may take him as your lifelong trustworthy friend

B. it seems necessary for you to let him know it

C. it's proper for you to give him a second handshake

D. it'll be helpful for you to have further understanding of him

单项选择题