【正文】 will suffer ○D. mathematical ability all decline 30. The passage support which of the following 中國在職教育網(wǎng)論壇 全面的在職研究生相關資訊，以及廣泛的學員交流 conclusions? ○A. The language concepts used in early education interfere with mathematical reasoning. ○B(yǎng). 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 good idea to keep an open mind. Scientists in some countries are trying to 中國在職教育網(wǎng)論壇 全面的在職研究生相關資訊，以及廣泛的學員交流 persuade their governments to help them study UFOs. And they are planning to cooperate internationally on reporting and investigating sightings of UFOs. After all, it is quite possible that there is life out there in the universe. And if something is alive, it is quite possible that it will e to visit us. 16. The captain and the camera crew believed that UFO was a v spaceship from another pla. 17. Many o believed that the UFO was Venus. 18. So far there is no proof that UFOs are sp from outer space. 19. Some scientists in the world are planning to do some r on UFOs. 20. P life in the universe may try to make a visit to us. 中國在職教育網(wǎng)論壇 全面的在職研究生相關資訊，以及廣泛的學員交流 第三部分 閱讀理解 (80 分 ) Passage 1 In recent years, scientific and technological developments have drastically changed human life on our pla, as well as our views both of ourselves as individuals in society and of the universe as a whole. Maybe one of the most profound developments of the last decade is the discovery of rebinant DNA technology, which allows scientists to introduce geic (遺傳學的 ) material (or genes) from one anism into another. In its simplest form, the technology requires the isolation of a piece of DNA, either directly from the DNA of the anism under study, or artificially synthesized from an DNA. This piece of DNA is then ligated (結扎 ) to a fragment of bacterial DNA which has the capacity to replicate (復制 ) itself independently. The rebinant molecule thus produced can be introduced into the mon intestinal (內(nèi)部的 ) bacterium Escherishchia coli, which can be grown in very large amounts 中國在職教育網(wǎng)論壇 全面的在職研究生相關資訊，以及廣泛的學員交流 in synthetic media. Under proper conditions, the foreign gene will not only replicate in the bacteria, but also express itself, through the process of transcription and translation, to give rise to large amounts of the specific protein coded by the foreign gene. The technology has already been successfully applied to the production of several therapeutically (療法的 ) important biomolecules, such as, growth hormones, interferon, insulin. Many other important applications are under detailed investigation in laboratories throughout the world. 21. Rebinant DNA technology consists primarily of ____________. ○A. producing several therapeutically important biomolecules ○B(yǎng). giving rise to large amounts of protein ○C. introducing geic material from one anism into another ○D. using a viral enzyme called reverse 中國在職教育網(wǎng)論壇 全面的在職研究生相關資訊，以及廣泛的學員交流 transcriptase 22. Rebinant DNA technology has been used in the production of all of the following biomolecules except ___________. ○A. growth hormones ○B(yǎng). 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(yǎng). 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. 中國在職教育網(wǎng)論壇 全面的在職研究生相關資訊，以及廣泛的學員交流 24. Expression of a gene in Escherishchia coli requires ________. ○A. the viral enzyme reverse transcriptase ○B(yǎng). 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(yǎng). 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 中國在職教育網(wǎng)論壇 全面的在職研究生相關資訊，以及廣泛的學員交流 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 (使隔離 ) 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 中國在職教育網(wǎng)論壇 全面的在職研究生相關資訊，以及廣泛的學員交流 to this point, having permitted it the luxury of thinking for itself for eighteen months,