摘要:17.一跳水运动员从离水面10m 高的平台上向上跃起.举双臂直体离开台面.此时其重心位于从手到脚全长的中点.跃起后重心升高0.45m 达到最高点.落水时身体竖直.手先入水(在此过程中运动员水平方向的运动忽略不计).从离开跳台到手触水面.他可用于完成空中动作的时间约是多少?(计算时.可以把运动员看作全部质量集中在重心的一个质点.g 取为10m/s2.(1.5)2=2.25.2=2.1025.(1.4)2=1.96.结果保留二位有效数字) 飞镖是一项时尚的运动.飞镖质量为0.01Kg,一名运动员在距离一堵竖直木板墙壁3m前投掷飞镖.求:(g=10m/s2) ①当以30m/s的水平速度投掷飞镖.飞镖插在墙壁上的位置与抛掷点的竖直距离 ②如果考虑空气对飞镖有阻力且只考虑水平阻力为0.2N,想飞镖仍插在墙壁原来位置上.则水平投掷速度要多大?

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根据短文内容,从下框的A----E选项中选出能概括每一段主题的最佳选项。选项中有一项为多余选项。

 

 
1.

 

May 19,1991 was a red letter day for the people of Nanxi Town,Jinzhai County,in the Dabie

Mountain area of Anhui Province.On that day the townpeople cut the ribbon at the inauguration(落成典礼)of a primary school,the first in China set up with money raised in a national campaign for educational development.They were happy to see their children,who had been deprived(剥夺)of an education because of poverty,entering school.

 

 
2.

 

The Dabie Mountain range lies at the juncture of Hubei,Henan and Anhui provinces.Jinzhai

County,located in the highest section of the mountain range,has within its boundaries more than 100 peaks each exceeding1,000 meters in height.Due to the unfavorable natural conditions,some people in the county are unable to feed and clothe themselves adequately no matter how hard they work throughout the year.About 1,500 children have dropped out of school because their parents are unable to pay the fees for them.

 

 
3.

 

Huangpin,a povert-stricken village situated in the a cold area 750 metres above sea level,is

tipical of the county.Among the village’s 224 children between the ages of 7 and 15,there are 80 who are unable to go to school because of economic problems.Some pupils have to cut firewood after school to support themselves.Some leave school to look after cattle and pigs because they cannot afford the 20 yuan necessary for buying books.

 

 
4.

 

The county’s leaders have long realized that it is very difficult for county in which 36%of the

people are illiterate(文盲)to free itself of poverty.In order to change this situation,they have spent 1/3 of the county’s tax income on education for several years’ running.In order to enrol(招收)more children,teachers from some schools have climbed hills to encourage people to send their children to school.Some teachers have even paid their students’ fees from their own pockets,although their salaries are very low.

 

 
5.

 

According to statistics(统计数据)in China,more than one million school-age children are

unable to go to school because of economic problems.In October 1989,the China Foundation for the Development of Children and Youth appealed to the country and  the world to raise money for the education of children in poverty-stricken areas.Since children are the future of the country,this project is called “The Hope Project”.

 

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下面为五封《Crazy English》杂志的读者来信片段。请从以下选项(A、B、C、D、E和F)中,为每封来信选取最佳的回信。选项有一项是多余项。

1.I am a reader of CR. Recently I found students translate some articles of CR. I appreciate your offering an opportunity to us beginners to practise using English. So I want to ask how they can obtain these articles and translate them for you, and what qualities you require. Thank you.

2.I love your Crazy English Reader magazine! It provides valuable data for work in our English teaching. My wife and I are teaching Conversational English so I’ve been giving you a bit of a plug at our middle school. I told the students to “get a copy”. It’s good stuff! Fantastic!

3.I’m one of Yao’s fans from Guangzhou. I have read some articles about Yao Ming in No. 7 Crazy English Reader. I want to know his correspondence address and the official website. Could you please tell me? Thank you very much indeed.

4.First of all, I must say thank you very much to all the CR Reader editors who gave us a really good English magazine. Secondly, I want to give you a piece of advice. In each passage, you gave us some new words with their Chinese translation. However, as far as my knowledge, I think you should give us not only the Chinese meaning but also the English meaning so as to know the words more accurately.

5.I’m an editor of the English Monthly of our school. I have a question, that is, how to say the position of the paper e.g. , 编辑; 责任编辑and so on. I hope you can help me to tell me the word in English. The more the better. Thank you so much! I love the book very much. Now I do this work. I need to study more information about this work. If you have time, please email me. Thank you.

 

A.  Thank you for your suggestion. We may try that in some future issues of CR. I think the best way to improve your reading vocabulary is to be able to guess the meaning of the word from the other words around it. Also, if you have an English dictionary, it is good to look up the words and them mark them down in a notebook and review them later on. Then if you really want to learn how to use the words, try using them in conversation or in writing. Hope this helps.

B.  The best way for you to learn the different positions in a newspaper or magazine is to get a copy of an all English magazine or newspaper and then copy down the different positions. There are also titles such as Managing Editor, reporter, Copy Editor, Photo Editor and Layout Editor. I hope this helps. If you have some more specific questions, you can send them to me and I’ll try to answer.

C.  The best way to reach Yao directly is through his home team, the Shanghai Sharks. You can write to him at 2570 Xietu Road, Shanghai. For more information on Yao, you can look at the sports section in sina. Com. I hope this helps. Another idea is that you can try to write to Yao while he is living and playing in Houston. You can try to reach Yao in the US at: Yao Ming Compaq Center 10 Houston, TX 77046.

D.  Thank you for being such a cheerful reader of CR. Yes, you’re right we made a mistake in the writing of that Chinese word. Each issue we try to read very carefully each article and its translation to make sure there are no mistakes, but unfortunately a few mistakes always get by. But you encourage us to keep improving, so thank you.

E.  Yes, we do have several students who help us translate some of the articles in our magazine. We contact these translators directly after interviewing their translation work. Afterwards we assign the articles to them for translation. If you are interested in being one of our translators you can send us some information about yourself and a sample of your translation work.

F.Thank you for helping us to promote CR. We’re glad it’s helpful to your students. We always try to include articles that reflect real life. It’s our hope that CR will not only improve students’ English but also open up a different worldview.

 

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