问题 选择题

下列有关光现象的说法中错误的是[ ]

A.“举杯邀明月,对影成三人”中的“影”是光的直线传播形成的

B.根据光路可逆性,从水中看岸上的物体看到的是变低了的虚像

C.根据光的反射定律,反射角变化的大小和入射角变化的大小是相等的

D.当物距u和凸透镜的焦距f满足2f>u>f时,屏上成倒立放大的实像

答案

答案:B

阅读理解

阅读理解。

     In England, people don't usually talk very much. You can get on a bus or a train, and everyone likes

looking out of the window. Often they read books and papers. But they don't talk much.

     When you meet English people, they often talk about one thing-weather. So  when  you  meet your

friends in England, you can say," Nice weather for the time of this year ! "

    "But it was a little cold yesterday. " Someone may answer.

    "But it got a bit warmer later!" You can say.

     Talk like this, and the English will think," How friendly you are!"

     It is never too hot or too cold for working or living in England. This is because of the sea. It keeps

the country warm in winter and cool in summer. The weather changes very often in England. One can

never has the same kind of weather for a long time. In spring, sunshine and rain follow each other quite

often during the day. So when one goes out, he must never forget to take an umbrella.

根据短文内容,回答下列问题。

1. What do English people like to do when they travel on a bus or a train?

  _______________________________________________________________________

2. What do English people often talk about?

  ________________________________________________________________________

3.What do English people think of you when you talk about weather with them?

  ________________________________________________________________________

4. Why is it never too hot or too cold in England?

  ________________________________________________________________________

5. What do English people always take when they go out?

  ________________________________________________________________________

问答题 简答题