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re very difficult 参考答案： A 第二段的最后一句是说专业词汇给日常用语做出了很大贡献。究其原因是第一段提到的给一个过程命名比描述它要简单的多，因而专业词汇变成日常用语的一部分，可以使日常用语更为简洁。----------------------------------------1From this passage, we can learn that . A.A robotic caterpillar can crawl by a pair of rubber rods.B.When a caterpillar moves, the magnetic field moves backwards along it.C.The environment couldn’t influence a robotic caterpillar’s guts, which are wrapped in a capsule.D.Crawling is very stable and efficient, and when it moves, only a few elements are needed. 参考答案： B 日本人Norihiko Saga发明一种磁性机器虫，利用磁流体完成爬行，将用于帮助救援者找到地震废墟中的受困者。 Saga made the caterpillar from a series of rubber capsules filled with a magnetic fluid consisting of iron particles, water, and a detergent?like surfactant, which reduces the surface tension of the fluid. 这种机器虫是Saga用装满磁流体的一系列橡胶囊制成的，磁流体的成分包括铁粒、水及能减少流体表面张力的类似清洗剂的表面火化剂。由第四段第一句可以看出，磁场会向后移动从而使机器虫移动。D中，crawling是一种效率不高的运动方式。----------------------------------------2According to this passage, which is not TRUE about the construction of the robotic caterpillar? A.A robotic caterpillar is made from a series of rubber capsules filled with a magnetic fluid.B.Iron particles, water, and a detergent?like surfactant form a magnetic fluid.C.Each capsule filled with a magnetic fluid is linked to a pair of rubber rods.D.In order to keep stable condition, the caterpillar’s guts are wrapped in a clear, flexible polymer tube. 参考答案： C 由第三段倒数第二句可以得出，囊与囊之间由一对橡胶棒连接。----------------------------------------3The meaning of the word “peristalsis” in paragraph three is similar to . A.swimmingB.flyingC.crawlingD.walking 参考答案： C 根据全文可以推断出peristalsis就相当于crawling----------------------------------------4Comparing the ro
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