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1、姓名:_ 班级:_ 学号:_-密-封 -线- 标签:标题考试时间:120分钟 考试总分:100分题号一二三四五总分分数遵守考场纪律,维护知识尊严,杜绝违纪行为,确保考试结果公正。1、passage threeedmund halley was an english scientist who lived over 200 years ago. he studied the observations of comets (彗星) ,which other scientists had made. the orbit (轨道) of one particular comet was a very
2、difficult mathematical problem. he could not figure it out. neither could other scientists who dealt with such problems.however, halley had a friend named 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 ha
3、d 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 the orbits of some of the comets that had been observed by scientists. he made a surprising discovery. the comets that appeared in the years 1531,1607, and 1682 all had the s
4、ame orbit. yet their appearances 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 more he thought that there had not been three different comets, as people thought. he decided that they had simply
5、seen the same comet three times. the comet had gone away and had come back again.it was an astonishing idea! halley felt certain enough to make a prediction of what would happen in the future. he decided that this comet would appear in the year 1758. there were 53 years to go before halleys predicti
6、on 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 halleys comet, in his honour.halley made his discovery ( )a.by doing experimentsb.by means of his own careful observationc.by using the work
7、of other scientistsd.by chance2、passage threeedmund halley was an english scientist who lived over 200 years ago. he studied the observations of comets (彗星) ,which other scientists had made. the orbit (轨道) of one particular comet was a very difficult mathematical problem. he could not figure it out.
8、 neither could other scientists who dealt with such problems.however, halley had a friend named 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
9、 shape of an ellipse (椭圆形) .now halley set to work. he figured out the orbits of some of the comets that had been observed by scientists. he made a surprising discovery. the comets that appeared in the years 1531,1607, and 1682 all had the same orbit. yet their appearances had been 75 to 76 years ap
10、art.this seemed very strange to halley. three different comets followed the same orbit. the more halley thought about it, the more he thought that there had not been three different comets, as people thought. he decided that they had simply seen the same comet three times. the comet had gone away an
11、d had come back again.it was an astonishing idea! halley felt certain enough to make a prediction of what would happen in the future. he decided that this comet would appear in the year 1758. there were 53 years to go before halleys prediction could be tested.in 1758 the comet appeared in the sky. h
12、alley did not see it, for he had died some years before. ever since then that comet had been called halleys comet, in his honour.this passage in general is about( )a.halley and other scientistsb.the orbit of a cometc.newton and halleyd.halley and his discovery3、passage threeedmund halley was an engl
13、ish scientist who lived over 200 years ago. he studied the observations of comets (彗星) ,which other scientists had made. the orbit (轨道) of one particular comet was a very difficult mathematical problem. he could not figure it out. neither could other scientists who dealt with such problems.however,
14、halley had a friend named 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 the
15、 orbits of some of the comets that had been observed by scientists. he made a surprising discovery. the comets that appeared in the years 1531,1607, and 1682 all had the same orbit. yet their appearances had been 75 to 76 years apart.this seemed very strange to halley. three different comets followe
16、d the same orbit. the more halley thought about it, the more he thought that there had not 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
17、enough to make a prediction of what would happen in the future. he decided that this comet would appear in the year 1758. there were 53 years to go before halleys 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 th
18、en that comet had been called halleys comet, in his honour.halley made a surprising, but correct prediction in the year( )a.1704b.1705c.1706d.17074、passage threeedmund halley was an english scientist who lived over 200 years ago. he studied the observations of comets (彗星) ,which other scientists had
19、 made. the orbit (轨道) of one particular comet was a very difficult mathematical problem. he could not figure it out. neither could other scientists who dealt with such problems.however, halley had a friend named newton, who was a brilliant mathematician. newton thought he had already worked out that
20、 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 the orbits of some of the comets that had been observed by scientists. he made a surprising discovery. the comets tha
21、t appeared in the years 1531,1607, and 1682 all had the same orbit. yet their appearances 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 more he thought that there had not been three different co
22、mets, 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 enough to make a prediction of what would happen in the future. he decided that this comet would appear in the yea
23、r 1758. there were 53 years to go before halleys 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 halleys comet, in his honour.edmund halley figured out the orbit of( )a.some differe
24、nt comets appearing several timesb.the same comet appearing at different timec.three different comets appearing three timesd.several comets appearing at the same time5、passage threeedmund halley was an english scientist who lived over 200 years ago. he studied the observations of comets (彗星) ,which
25、other scientists had made. the orbit (轨道) of one particular comet was a very difficult mathematical problem. he could not figure it out. neither could other scientists who dealt with such problems.however, halley had a friend named newton, who was a brilliant mathematician. newton thought he had alr
26、eady 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 the orbits of some of the comets that had been observed by scientists. he made a surprising discovery. the comets that appeared in the years 1531,1607, and 1682 all had the same orbit. yet their appearances had been 75 to 76 years apart.this seemed very strange to halley. three different
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