[10-20 18:10:12] 来源：http://www.67xuexi.com 高二英语 阅读：85622次
However, Halley had a friend named Isaac Newton, who was a brilliant mathematician. Newton thought he had already worked out that problem, but he could not find the papers on which he had done it. He told Halley that the orbit of a comet had the shape of an ellipse(椭圆形).
Now Halley set to work. He figured out(解决，计算出)the orbits of some of the comets that had been observed by scientists. He made a surprising discovery. The comets that had appeared in the years 1531, 1607, and 1682 all had the same orbit. Yet their appearance had been 75 to 76 years apart.
This seemed very strange to Halley. Three different comets followed the same orbit. The more Halley thought about it, the ore his thought that there had been three different comets as people thought. He decided that they had simply seen the same comet three times. The comet had gone away and had come back again.
It was an astonishing idea! Halley felt certain though to make a prediction(预言)of what would happen in the future. He decided that this would appear in the year 1758. There were 53 years to go before Halley’s prediction could be tested. In 1758 the comet appeared in the sky. Halley did not see it, for he had died some years before. Ever since then that comet had been called Halley’s comet, in his honor.
8 Edmund Halley figured out the orbit of ____.
A. some different comets appearing several times
B. the same comet appearing at different times
C. three different comets appearing at the same time
D. several comets appearing at the same time
9. Halley made his discovery ____.
A. by doing experiments
B. by means of his own careful observation
C. by using the working of other scientists
D. by chance
10. Halley made a surprising, but correct prediction in the year____.
A. 1704B. 1705 C. 1706D. 1707[来源:Z&xx&k.Com]
11. This passage in general is about ____.
A. Halley and other scientists
B. the orbit of a comet[来源:Zxxk.Com]
C. Newton and Halley
D. Halley and his discovery[来源:学§科§网]
12. Which of the following is TRUE?
A. Edmund Halley was an American scientist.
B. Halley made his discovery by doing experiments.
C. Isaac Newton was a famous mathematician.
D. The orbit of a comet had the shape of an around. [来源:Z_xx_k.Com]
1. C
解析：警察之所以培训这样的女士，首先是因为她们的长相，但单凭这些是不能胜任侦探工作的，她们还要有敏锐的观察和分析能力。是否需要幽默，文中并没有提到。[来源:学科网][来源:学_科_网Z_X_X_K]
2. B
解析：第一个女孩看到嫌疑犯只有“一只眼睛”，第二个女孩看到只有“一个耳朵”，警察对这两个人的回答都感到滑稽、可笑，由此可以推测这张画像是一个人的侧面照。[来源:学科网ZXXK]
3. D
解析：她们本来就是在接受训练，而对于这次测试的结果，可以看出三个人目前在这方面是没有什么值得称赞的，所以继续培训或被解雇的可能性都存在。
4. D
解析:从文章第一段提到的委员会及相应的国家可知答案。
5. B[来源:学科网]
解析:这正是调查的目的。
6. C
解析:这是事实，也是社会常识。
7. A
解析:综合推理题。比较文章二段中的一组数字可知答案。
8. B
解析：这是一道综合判断题。根据文章的第四段“He decided that they had simply seen the same comet three times. ”及上文提到的看彗星的时间分别是1531年、1607年、1682年可判断正确答案为选项B。
9. C
解析：这是一道细节理解题。根据文章第一段“He studied the observations of comets which other scientists had made. ”可知，哈雷的发现是在研究其他科学家们的观察中得出来的。
10. B
解析：这是一道计算题。文中的“He decided that this would appear in the year 1758. There were 53 years to go before Halley’s prediction could be tested. ”这句话告诉我们：他预言彗星出现的时间是1758年，而这个预言还要经过53年才能验证，由此可以推断出哈雷做出这个预言的时间是1705年。
11. D
解析：这是一道主旨大意题。纵观全文，不难看出，文章的中心就是哈雷以及他的发现。
12 C
解析：这是一道综合判断题。从文章首句可以看出A项错误；从第二题的分析中可知B项也错误；牛顿告诉哈雷彗星的轨道是椭圆形的，可排除D。