【正文】 why all the solar energy falling on the earth can’t be utilized is that a very small part is available sun is too distant from the earth takes thousands of years for this energy to be stored up in coal and oil scientific knowledge is not sufficient of the following statements is NOT true? windmill’s action depends on the sun produces enormous energy for man to make use ：:///專升本：102683911 day man will be able to utilize 100% of the solar energy that gets to the sun produces different heating effects in different order to support this argument, the writer gives the example that machine using solar energy efficiently has already been developed sun is our final source of power uses only a tiny part of the sun’s energy part of the sun’s energy we use is used indirectly passage centers mainly on energy through chemistry last source of power water power is produced amount of solar energy that can be utilizedⅤ.Writing(20 points)Directions:For this part, you are allowed 20 minutes to write a letter of about 80 words according to the following ？(Should Men and Women Be Equal?)參考答案Ⅰ.Phonetics1．A2．C3．B4．A5．B6．A7．A8．B9．B10．C Ⅱ.Vocabulary and Structure11．C12．D13．B14．D15．C16．D17．D18．A19．C20．C21．D22．D23．C24．D25．A26．C27．C28．A29．D30．B31．D32．B33．D34．C35．B36．C37．B38．B39．B40．A41．A42．B43．C44．A45．D 46．D47．D48．D49．C50．A Ⅲ.Cloze51．A52．B53．B54．C55．D56．B57．A58．C59．B60．A Ⅳ.Reading Comprehension61．D62．C63．C64．D65．C66．D67．A68．C69．C70．D71．C72．C73．A74．B75．A76．D77．D78．C79．A80．D青年人專升本網(wǎng)：第四篇：英語(專升本)3A_試卷_答案英語(?？破瘘c本科)3A一、閱讀理解（共20題,共40分） the fact that today viruses(病毒)are known to cause cancer in animals and in certain plants, there exists a great reluctance to accept viruses as being of importance in human biological phenomena generally do not differ strikingly as one goes from one species to should be recognized that cancer is a biological problem and not a problem that is unique to originates when a normal cell suddenly bees a cancer cell which multiplies widely and without apparent may originate in many different kinds of cell, but the cancer cell usually continues to carry certain traits(特性)of the cell of transformation of a normal cell into a cancer cell may have more than one kind of cause, but there is good reason to consider the relationships that exist between viruses and there is no evidence that human cancer, as generally experienced, is infectious, many persons believe that because viruses are infectious agents they cannot possibly be of importance in human , viruses can mutate(突變)and examples are known in which a virus that never kills its host can mutate to form a new strain of virus that always kills its does not seem unreasonable to assume that a harmless latent virus might mutate to form a strain that causes the experimental evidence now available is consistent with the idea that viruses as we know them today could be the causative(引起…的)agents of most, if not all cancer, including cancer in man.（10分）(1)According to the passage, cancer cells are ____.（2分） to the cell of origin of viruses to reproduce the smallest cell known標準答案：A(2)The best title for this passage is ____.（2分） Light on the Causes of Cancer Newest Theory on the Nature of Viruses and cancer the Nature of Life標準答案：C(3)Cancer should be considered to be a biological problem rather than a medical one because ____.（2分） are known to cause cancer in animals present, human cancer is not believed to be infectious are many known causes for the transformation of a normal cell to a cancer cell of experiments on plants and animals do not vary greatly from species to species標準答案：D(4)Many people believe that viruses cannot possibly be of importance in human cancer because ____.（2分） are harmless agencies are the causative agents of most human cancer seem to be infectious to many people are generally thought to be relevant to most cancer in man標準答案：C(5)The possibility that a virus causes human cancer is indicated by ____.（2分） fact that viruses have been known to mutate fact that a cancerimmune(免疫的)individual may lose his immunity fact that production of human cancer cells might be due to a genetic factor fact that man is host to many viruses標準答案：A all know that it is possible for ordinary people to make their homes on the equator, although often they may feel unfortably hot do it, but as for the North Polewe know that it is not only a dangerously cold place, but that people like you and me would find it quite impossible to live the present time only the scientists and explorers can do so, and they use special have been traveling across and around the equator on wheels, on their feet or in ships for thousands of years。but only a few men, with great difficulty and in very recent time, have ever crossed the ice to the North it may surprise you to learn that, when traveling by air, it is really safer to fly over the North Pole than over the course, this is not true about landings in the polar region(which passenger aeroplanes do not make), but the weather, if we are flying at a height of 5,000 meters above the Pole, is a 4,000 meters and more above the earth you can always be sure that you will not see a cloud in the sky as far as the eye can the tropics, on the other hand, you are not certain to keep clear of bad weather, even at such heights as 18,000 or 20,000 can’t climb as high or as quickly in cold air as in can practice, this is an advantage to the aeroplane, which is already at a good height when it reaches the polar region and so does not need to climb, while at the same time cold air keeps the clouds down low.（10分）(1)The polar region is ____.（2分） good place to land at by aeroplane good place to fly over good place to live in good place to cross標準答案：B(2)It is a delight to fly at the P