问题 选择题

下列各组对应关系正确的是(  )

A.科学家及其重要的科学贡献

卢瑟福--提出原子核式模型

居里夫人--发现了“镭”元素

贝尔--发明了电话

B.物理量与单位

电流--A

电压--V

电功--W

C.生活现象与物理知识

小孔成像--光的直线传播

彩虹--光的色散

海市蜃楼--光的折射

D.有关实验和数据

马德堡半球实验--证明大气压存在

托里拆利实验--测量大气压

一个标准大气压--数值等于1013Pa

答案

A、贝尔是发明家而不是科学家,故A错误.

B、电功的单位是焦耳,不是瓦特,故B错误.

C、小孔成像是由于光的直线传播形成的;彩虹是阳光被折射后发生色散形成的;

海市蜃楼是光经折射后形成的,所列生活现象与物理知识相对应,故C正确.

D、一个标准大气压值约为1×105Pa而不是1013Pa,故D错误.

故选C.

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BBC World Have Your Say: “ Life in China”
Every day, BBC News on TV,radio and online brings you stories from across the world. But what we want to hear are the stories that matter to you.
Have got a story about life in China today? If you do, please put your stories here.

I like travaling and I have traveled a lot around China. During the trip, I often find that a number of Chinese don’t have good pulic manners(举止). They always loudly on the phone and smoke everywhere. The worst is that they often break the rules in public. For example, when I travled in HongKong in January this year, I saw a kid eating noodles on the underground , which is against the rules. However, the kid’s mother didn’t think he did wrong. Can you believe it? Let’s improve our public manners. (Mike, Shenzhen)

I am a 14-year-old boy from a poor village in Fuyang , Anhui Province. Like many other left-behind children(留守儿童)in China, l live with my grandparents now. my father went to work inn Shanghai several years ago. Last year, my mother went there to care for him because his health is not as good as before. They tell me to listen to my grandparents and call me about twice a month to ask about my study. I really miss my parents ans I hope I can afford to go to school in Shanghai. I think every child needs parents’ love and care. (Wu Peigen, Anhui Province)
                                Information card
The topic of BBC. World Have Your Say today
1.
 
The thing that the kid did on the underground
2.
 
The time when Mike traveled in HongKong
3.
 
Wu Peigen’s age
4.
 
People who live with Wu Peigen now
5.