阅读下面这篇短文,短文后列出了7个句子,清根据短文的内容对每个句子作出判断。如果该句提供的是正确信息,请选择A项;如果该句提供的是错误信息,请选择B项;如果该句的信息文章中没有提及,请选择C项。 Plants in Desert Only special plants can survive the terrible climate of a desert, for these are regions when the annual range of the soil temperature can be over 75℃. Furthermore, during the summer there are few clouds in the sky to protect plans from the sun’ s ray. Another problem is the fact that there are frequently strong winds that drive small, sharp particles of sand into the plants,earing and damaging them. The most difficult probiem for all forms of plant life, however, is the fact that the entire annual rainfall occurs during a few days or weeks in spring. Grasses and flowers in desert survive from one year to the next by existing through the long, hot, dry season in the form of seeds. These seeds remain inactive unless the fight amount of’rain falls. If no rain falls, or if insufficient rain falls, they wait until the next year, or even still the next. Another factor that helps these plants to survive is the fact that their life cycles are short. By the time the water from the spring rains disappears — just a few weeks after it falls — such plants no longer need any. The perennials (多年生植物) have special features that enable them to survive as plants for several years. Thus, nearly all desert perennials have extensive root systems below ground and a small shoot system above ground. The large root network enables the plant to absorb as much water as possible in short time. The small shoot system, on the other hand, considerably limits water loss by evaporation. Another feature of many perennials is that after the rainy season they 10se their leaves in preparation for the long, dry season, just as trees in wetter climates lose theirs in preparation for the winter. This reduces their water loss by evaporation (蒸发) duing the dry season. Then, in next rainy season, they come fully alive once more, and grow new branches, leaves and flowers, just as the grasses and flowers in desert do. Grasses and flowers in desert are unable to survive because they stay in the form of seeds to wait for the right amount of water to come.
A. Right
B. Wrong
C. Not mentioned
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Directions:Read the following text carefully and then translate the underlined segments into Chinese. Your translation should be written neatly on ANSWER SHEET 2.All U. S. nuclear weapons production facilities are presently closed down, and if the various agreements are adhered to, those facilities will never be required except for one critical capability. All modern nuclear weapons use uranium (铀), plutonium (钚), and tritium (氚). Uranium and plutonium have very long half-lives, and there is large surplus of these materials.Tritium, however, has a relatively short half-life of about 12.6 years, so about 5 percent of the amount on hand must be replaced each year to maintain the current inventory. (46) Because of the large retirement of nuclear weapons by the United States in compliance with early agreements and national policy, tritium from retired weapons has been used to make up that lost through natural decay. (47) However, in about 10 to 15 years, depending on future negotiations, the United States will need a guaranteed supply of tritium to maintain its stockpile at whatever level is agreed on.In anticipation of this future need to produce tritium, Defense Office Executive is pursuing two technologies. One uses a nuclear reactor that could also produce electricity whose sale would recover not only the capital cost of the reactor but also its annual operational cost. (48) Unfortunately, the present Administration has a definite bias against nuclear power, so an alternative method is also being pursued even though it is agreed that it will cost twice as much as a reactor and use as much electricity as a reactor would produce. This technology uses an accelerator to produce high-energy protons that in turn produce neutrons.The main argument for the accelerator is that it produces no conventional nuclear wastes. (49) Proponents readily admit that it will produce radioactive materials, but with a relatively short half-life compared with that of wastes from spent nuclear fuel. The fact that the accelerator will require the equivalent of a nuclear power plant to supply its electricity is ignored.(50) Proponents ’also neglect to mention that about 22 percent of all electrical energy generated in the United States comes from nuclear power plants, so that 22 percent of the power used by the accelerator will generate conventional nuclear wastes, in addition to those the accelerator produces. There is an alternative to either the reactor or the accelerator, which is simply to buy the required tritium from Canada or Russia. However, in about 10 to 15 years, depending on future negotiations, the United States will need a guaranteed supply of tritium to maintain its stockpile at whatever level is agreed on.
第二节 完型填空 阅读下面短文,从短文后所给各题的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项。 From Monday until Friday (36) people are busy working or studying, but in the evenings and (37) weekends they are free to enjoy themselves. Some watch TV or go to the movies; (38) take part in sports. It depends on individual (39) . There are many different ways to spend our (40) time. (41) . everyone has some kind of hobby. It may be (42) from collecting stamps to (43) model planes. Some hobbies are very (44) ; others don’t cost (45) at all. Some collections (收藏品) are (46) a lot of money; others are valuable only (47) their owners. I know a man who (48) a coin collection worth thousands of dollars. A short time ago, he got a (49) fifty cent piece by (50) $250. He was very happy about his collection and thought the price was (51) . On the contrary, my youngest brother (52) match boxes. He has almost 6,000 of them. But I (53) if they are worth any money. However, for my brother they are very (54) . Nothing makes him (55) than to find a new match box for his collection.
A. most of
B. almost
C. most
D. the most
甲企业委托乙企业加工用于连续生产的应税消费品。甲、乙两企业均为增值税一般纳税人,适用的增值税税率为17%,甲企业对材料采用计划成本核算。有关资料如下: (1)甲企业发出材料一批,计划成本为70000元,月初材料成本差异率为2qo。 (2)按合同规定,甲企业用银行存款支付乙企业加工费用4600元(不含增值税),消费税4000元,以及相应的增值税。 (3)甲企业用银行存款支付往返运杂费600元 (不考虑增值税进项税额)。 (4)甲企业委托乙企业加工完成后的材料计划成本为80000元,该批材料已验收入库。 要求:根据上述资料,不考虑其他因素,分析回答下列小题。 (答案中金额单位用元表示) 关于委托加工业务,下列说法中正确的是______。
A. 委托加工材料负担的差异额用本月材料成本差异率计算
B. 委托加工材料负担的差异额用月初材料成本差异率计算
C. 收回委托加工物资的成本包括发出材料实际成本、支付给乙企业的加工费用、支付给乙企业的消费税和往返运杂费
D. 收回委托加工物资的成本包括发出材料实际成本、支付给乙企业的加工费用和往返运杂费
下面有3篇短文,每篇短文后有5道题,每道题后面有4个选项。第一篇 A Thirsty World The world is not only hungry; it is also thirsty for water. This seems strange to you, since nearly 75% of the earth’s surface is covered with water. But about 97% of this huge amount is from sea water, or salt water. Man can only drink and use the other 3% — the fresh water that comes from rivers, lakes, underground, and other sources. And we cannot even use all of that, because some of it is in the form of iceberg (冰山) and glaciers (冰串). Even worse, some of it has been polluted. At the moment, this small amount of fresh water is still enough for us. However, our need for water is increasing rapidly. Only if we take steps to deal with this problem now can we avoid a severe worldwide water shortage later on. A limited water supply would have a bad effect onagriculture and industry. In addition to stopping wasting our precious water, one useful step we should take is to develop ways of reusing it. Experiments have already been done in this field, but only on a small scale. Today, in most large cities tanks, water is used only once and it eventually returns to the sea or runs into underground storage tanks. But it is possible to pipe water that has been used to a purifying (净化) plant. There it can be filtered (过滤) and treated with chemicals so that it can be used again just as it were fresh from a spring. But even if every large city purified and reused its water, we still would not have enough. Where could we turn next To the oceans! All we’d have to do to make use of the vast amount of sea-water is — remove the salt. This salt-removing process is already in use in many parts of the wodd. What percentage of the earth’s water can man actually use at present
A. Nearly 75 percent.
B. About 97 percent.
C. Exactly 3 percent.
D. Less than 3 percent.