问题 选择题

在物理学建立的过程中,有许多伟大的科学家做出了贡献。下列说法不正确的是:

A.奥斯特发现了电流磁效应;法拉第发现了电磁感应现象

B.开普勒最早发现了行星运动的三大规律

C.牛顿提出了万有引力定律,并通过实验测出了万有引力恒量

D.伽利略最早指出力不是维持物体运动的原因

答案

答案:C

牛顿提出了万有引力定律,卡文迪许通过实验测出了万有引力恒量,C不正确。

阅读理解

阅读理解。

Dear Mr. Zhu,

     I am writing to your magazine's "Teenagers Now" column (专栏) to ask for some help with my

16-year-old son. At the moment, he refuses to do almost everything his mother and I ask him to do. He

is our only child and we treat him very well. His grandparents buy him many things, and yet he is still rude

to us. He refuses to spend time with us or do as we tell him. Sometimes he acts as if he doesn't even love

us at all.

     Now he refuses to do his homework, and instead insists on wasting his time watching DVDs and

listening to foreign music. I cannot understand this music, but I don't like it. He also spends too much time

in Internet cafes, where he either plays games or chats online. He is wasting valuable time during this

important period in his life!

     What am I to do? At present, to prevent making his mother unhappy with an argument, I am allowing

him his freedom. However, I am worried that if I keep allowing him to do what he wants, he may fail at

school, or worse.

     How can I help my son without harming our relation ship?

                                                                                                       Yours,

                                                                                                              Liu Zhenhua

1. What's Mr. Zhu's job?

A. A teacher.

B. A magazine columnist.

C. A youth worker.

D. A doctor.

2. From the passage, we can know that Mr. Liu's son is _____ to his parents.

A. friendly

B. thankful

C. polite

D. rude

3. What does Liu Zhenhua write to Mr. Zhu for?

A. To blame his son.

B. To ask for help with his son.

C. To say something about his son.

D. To complain to him about his son.

4. Mr. Liu's son always spends his time _____.

A. doing his homework

B. playing games online

C. chatting with his parents

D. doing everything his parents asking him to do

判断题