|
微信搜索关注"91考试网"公众号,领30元,获取公务员、事业编、教师等考试资料40G!
an 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. 参考答案： 71.swinging 72.Based 73.migration 74.even 75.experiments／tests／study／research 76.block 77.cloudy 78.discovery 79.north 80.brain(s) ----------------------------------------1、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。 注意：1.对所给要点逐一陈述，适当发挥，不要简单翻译。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. 参考答案： 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 grasp of it.Secondly.I hope our teachers can recommend more interesting books and magazines and give us more free time to read them.Finally，1 suggest we have more Endish activities，such as English contests and festivals.Thank you for listening.(150words) |
考试问吧
