1、【 精品教育资源文库 】 Unit 3 Inventors and inventions 重点单词 1.patent n专利证书；专利权 2.passive adj.被动的；消极的；被动语态的 3 seize vt.抓住；捉住；夺 4.valid adj.有效的；确凿的 5 file n文件；档案；文件夹 vt.将 ? 归档；提交 6.ripe adj.熟的；成熟的 7 jam n堵塞；阻塞；果酱 8.dynamic adj.充满活力的；精力充沛的；动态的；发展变化的 9 tap v轻打；轻拍；轻敲 n轻轻地敲 击 (声 )； (水 )龙头 10 current n (水或气 )流；电流 a
2、dj.现在的；当前的 11 extention n扩大；延伸 12 distinguish vi. secondly, attracting them 6.into a trap using perfume or food, and thirdly cooling them. I used the 7.frozen(freeze) bowl to make the snakes 8.less(little) active, and then collected them. The next day we 9.merrily(merry) set all of them free, in oth
3、er words we released them back into 10.the wild. . 阅读理解 A Humans have launched themselves into the outer space. Theyve landed on the moon. Theyve built habitable space stations that orbit the Earth. The next giant leap for mankind is to reach another planet specifically, Mars. The problem is that it
4、s no easy task. The planet is 586 times further away from the Earth than the moon, and itll take around 180 to 220 days to reach Mars, depending on where each planet is in its orbit. Such long periods in space have suggested many potential health problems, including hormonal changes, skin conditions
5、, and muscle and bone deterioration(损耗 ) Heres where some furry friends come in. A wide range of animals have been in space, from fruit flies and spiders to cats, and dogs. Such experiments began as far back as the late 1940s in first tests to see if living things could withstand the extreme g force
6、(重力 ) of a rocket launch. Mice continue to play a very important part in space experiments, mainly because 【 精品教育资源文库 】 the animals make excellent test subjects. Theyre small, which makes them inexpensive and easy to care for. In addition, their size and short life span make it possible to do the e
7、quivalent of several human years of tests in a much shorter time. Finally, because mice are mammals, they share many common characteristics with humans in terms of genetics, biology and behavior. Astromice have hit the headlines recently, as a team of scientists led by Betty Nusgens, professor of bi
8、ology at the University of Liege in Belgium, found that the mice suffered a 15 percent thinning of their skin after 91 days aboard the International Space Station(ISS) This experiment was part of a wider NASA mission(任务 ) called the Mice Drawer System(MDS). The Italian Space Agency developed the fac
9、ility, which allows six mice to be housed, monitored, and automatically fed and watered aboard the ISS, among which three survived during the mission. The mice have participated in 20 separate experiments, to study such effects as osteoporosis (骨质疏松症 ), anemia(贫血 ) and heart health. Results for the
10、20 experiments are coming in gradually. But its clear that mice continue to play an important role in the ongoing quest to conquer the final frontier. 语篇导读 本文为说明文。人类从未停止对未知的探索，继人类踏上月球之后，人类开始探索去往火星的旅程。 1 We can infer from Paragraphs 2 3 that _. A Mars is the farthest planet away from Earth discovered
11、 so far B the journey to Mars could put humans health at risk C it was in the late 1940s that animals were first sent to the ISS D animals that have been sent into space have mostly survived 解析 B 推理判断题。根据第二段最后一句可知，正是因为去往太空可能会有这些健康问题，所以第三段写到要先用小动物来做实验，故选 B 项。 2 The underlined word “withstand” in Para.3 means _. A set up B hold up C work out D come across 解析 B 词义猜测题。根据画线词所在句子可知，这些实验早在 20 世纪 40 年代就开始了，第一个实验是观测生物是否能够忍受火箭发射的巨大重力。 hold up 支持 住；承受住，故选 B 项。 3 According to Betty Nusgens and her team, the mice aboard the ISS _.
