时间:2010-07-22 07:53:03
A common bird that does not migrate but is great at finding its way home is the homing pigeon．Not all pigeons can find their way home．Those that can are very good at it，and they have been widely studied．
One interesting experiment was to attach little magnets to the birds’ heads to block their
magnetic sense—just as a loud radio can keep you from hearing a call to dinner．On sunny days, that did not fool the pigeons．Evidently they can use the sun to tell which way they are going．But on cloudy days，the pigeons with magnets could not find their way．It was as if the magnets had blocked their magnetic sense．
Similar experiments with the same kind of results were done with honeybees．These insects also seem to have a special sense ot direction．
In spite of the experiments，the idea of an animal compass seemed pretty extraordinary．How
would an animal get the magnetic stuff for a compass.
An answer came from an unexpected source．A scientist was studying bacteria that live in the
mud of ponds and marshes．He found accidentally little rod-like bacteria that all swam together in
one direction—north．
Further study showed that each little bacterium had a chain of dense particles inside，which
proved magnetic．The bacteria had made themselves into little magnets that could line up with the
earth’s magnet．
The big news was that a living thing，even a simple bacterium，can make magnetite．That led
to a search to see whether animals might have it.. By using a special instrument called magnetometer，scientists were able to find magnetite in bees and birds，and even in fish．In each
animal，except for the bee．the magnetic stuff was always in or closer to the brain．
Thus．the idea of a built—in animal compass began to seem reasonable．
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The Magnetic Sense | |
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Passage outline |
Supporting details |
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The existence of the earth magnet and the invention of the navigating compass |
◇Our earth is a big magnet and a little freely (71) ▲ magnetic needle lines itself with the earth magnet to point north and south. ◇(72) ▲ on |
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The possibility of birds’ built-in compasses |
◇One piece of evidence is the (73) ▲ of many birds between their summer homes and winter homes. ◇Birds can recognize star patterns on clear nights and keep on course (74) ▲ under cloudy skies |
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The (75) ▲ on pigeons’ and bees’ built-in compasses |
◇Little magnets were tied to the pigeons’ heads to (76) ▲ their magnetic sense. ◇The pigeons’ magnetic sense seemed to be affected on (77) ▲ days. ◇Similar things with the same results were done with bees. |
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The (78) ▲ of the magnetic stuff for the animal compass |
◇Little rod-like bacteria were found by chance to swim together in the direction of (79) ▲ . ◇Some animals had a chain of dense magnetic particles in or close to the (80) ▲ inside their bodies. |
第五部分：书面表达（满分25分）
81.假设你应邀参加学校组织的“英语学习师生座谈会”，请你根据下表所提示的信息，用英语写一篇发言稿，简单介绍自己英语学习的情况，并对学校今后的英语教学提出建议。
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自己英语学习的情况 |
1.英语学习的目的 |
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2.英语学习的方法 | |
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3.课外自学的途径
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………. | |
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对学校英语教学的建议 |
（请考生根据自己的经历与感想，提出两至三点建议）。 |
注意：
1.对所给要点逐一陈
2.词数150左右。开头和结尾已经写好，不计人总词数。
3.文中不得提及考生所在学校和本人姓名。
Dear teacher and schoolmates,1t’s a great pleasure for me to be today and share my
experience of learning English with you.
Thank you for listening.
英语试题参考答案
第一部分
1. B 2. B 3 .A 4 .B 5 .C 6 .A 7 .C 8. A 9 .A 10 .B
11. C 12 .A 13. C 14. C 15 .B 16. B 17. C 18 .B 19. C 20. A
第二部分
21 A 22. B 23. D 24 .C 25. B 26. C 27. D 28. A 29 .B 30 .C
3l .B 32. D 33.A 34 .B 35. A 36. D 37 .A 38 .B 39. C 40. C
4l. A 42. B 43 .D 44. B 45 .A 46 .C 47 .D 48. D 49. A 50. B
51. C 52. B 53 .A 54 .D 55. B
第三部分
56 .B 57. C 58. D 59. A 60 .D 6l .A 62. C 63 .B 64. D 65. A
66. C 67 .B 68 .C 69. D 70 .B
第四部分
71. swinging 72 .Based 73. migration 74 .even
75. experiments／tests／study／research 76. block
77. cloudy 78. discovery 79. north 80 .brain(s)
第五部分
8l. Dear teacher and schoolmates,1t’s a great pleasure for me to be today and share my
experience of learning English with you.I'm interested in English and hope to be an interpreter in the future.Naturally lt’s very important for me to learn English well .As everybody knows
vocabular is an important part of language, just like bricksin a building .I usually memorize twenty new words a day and put them to use whenever possible . After class．I often listen to English programs on TV and on the radio .Besides ,I've learned a lot from the Internet and other sources.
Now．I'd like to make some suggestions on English teaching and learning in our school.Firstly ,we should be given more opportunities to use what we’ve learned ln order to have a better gras
Thank you for listening. (150words)