全国职称英语等级考试试题-理工类(doc35)-考试学习(编辑修改稿)

全国职称英语等级考试试题-理工类(doc35)-考试学习(编辑修改稿)内容摘要：

c material from one anism into another ○D. using a viral enzyme called reverse 中国在职教育网论坛 全面的在职研究生相关资讯，以及广泛的学员交流 transcriptase 22. Rebinant DNA technology has been used in the production of all of the following biomolecules except ___________. ○A. growth hormones ○B. Escherishchia coli ○C. interferon ○D. insulin 23. Which of the following is not true? ○A. The foreign gene will replicate in the bacteria, but it will not express itself through transcription and translation. ○B. The bacterium Escherishchia coli can be grown in large amounts in synthetic media. ○C. Research continues in an effort to find other uses for this technology. ○D. Rebinant DNA technology is a recent development. 中国在职教育网论坛 全面的在职研究生相关资讯，以及广泛的学员交流 24. Expression of a gene in Escherishchia coli requires ________. ○A. the viral enzyme reverse transcriptase ○B. the processes of transcription and translation ○C. production of insulin and other biomolecules ○D. that the bacteria be grown in a synthetic media 25. The term rebinant is used because ___________. ○A. by ligation, a rebinant molecule is produced, which has the capacity of replication ○B. the technique requires the bination of several types of technology ○C. by ligation, a rebinant protein is produced, part of whose amino acids e from different anism ○D. Escherishchia coli is a rebinant anism 中国在职教育网论坛 全面的在职研究生相关资讯，以及广泛的学员交流 Passage 2 Watch a baby between six and nine months old, and you will observe the basic concepts of geometry being learned. Once the baby has mastered the idea that space is three dimensional, it reaches out and begins grasping various kinds of objects. It is then, from perhaps nine to fifteen months, that the concepts of sets and numbers are formed. So far, so good. But now ominous (不祥的 ) development takes place. The nerve fibers in the brain insulate (使隔离 ) themselves in such a way that the baby begins to hear sounds very precisely. Soon it picks up language, and it is then brought into direct munication with adults. From this point on, it is usually downhill all the way for mathematics, because the child now bees exposed to all the nonsense words and beliefs of the munity into which it has been so unfortunate as to have been born. Nature having done very well by the child now bees exposed to all the nonsense words and beliefs of 中国在职教育网论坛 全面的在职研究生相关资讯，以及广泛的学员交流 to this point, having permitted it the luxury of thinking for itself for eighteen months, now abandons it to the arbitrary conventions and beliefs of society. But at least the child knows something of geometry and numbers, and it will always retain some memory of the early halcyon (平静的 ) days no matter what vicissitudes (变化 ) it may suffer later on. The main reservoir of mathematical talent in any society is thus possessed by children who are about two years old. Children who have just learned to speak fluently. 26. What does the passage mainly discuss? ○A. The impact of language on mathematics. ○B. Children39。 s ability to learn languages. ○C. How basic concepts of physics are learned. ○D. Mathlearning strategies for babies. 27. According to the passage, which of following activities would teach a baby geometry? ○A. Picking up a wooden block. 中国在职教育网论坛 全面的在职研究生相关资讯，以及广泛的学员交流 ○B. Recognizing the number 2. ○C. Uttering a nonsense word. ○D. Looking at distant objects. 28. According to the author, at what age does a child probably begin to learn about sets and numbers? ○A. Six months. ○B. Nine months. ○C. Fifteen months. ○D. Eighteen months. 29. The use of the word ominous shows that the author believe the child39。 s _____. ○A. linguistic future is threatened ○B. nerves will deteriorate ○C. hearing will suffer ○D. mathematical ability all decline 30. The passage support which of the following 中国在职教育网论坛 全面的在职研究生相关资讯，以及广泛的学员交流 conclusions? ○A. The language concepts used in early education interfere with mathematical reasoning. ○B. It is hopeless to try to teach children mathematics after the age of two. ○C. Language teaching should incorporate some mathematical formulas. ○D. Preschool education should stress society39。 s beliefs and conventions 第四部分 概括大意 (20 分 ) 给下面一篇文章的每一段概括大意。 每一段的主题用一个或几个单词表示，空出的词已给出了第一个字母，请把其余字母补全。 31. The Solar E The sun is the source of most of the heat known to us. As a direct source of heat, the sun maintains life upon this pla, 150 000 000 kilometers distant. It is also an indirect source of heat. Since the earth is derived from the sun, it is the latter that we must trace some of the earth39。 s internal heat that reveals itself through 中国在职教育网论坛 全面的在职研究生相关资讯，以及广泛的学员交流 volcanoes, geysers (喷泉 ), and hot springs. 32. Insects and Surface T An insect is not afraid of gravity, but it is in deadly fear of another force of nature. This force is called surface tension (张力 ). A man ing out of a bath carries with him a film of water about one fiftieth of an inch in thickness. This weights about a pound. A wet mouse has to carry its own weight in water. A wet fly has to lift many times its own weight, and, as everyone knows, a fly once wetted by water or any other liquid is in a very serious position indeed. An insect going for a drink is in as great danger as a man leaning over the edge of a cliff in search of food. If it once falls into the grip of the surface tension of the。