大学英语A7试卷
一、阅读理解
1、After a long period of studies, scientists are uncovering surprising new findings about dolphins. They believe that dolphins do \their group. They help one another when in trouble. Like bats, they use sound waves to \of these and many other findings, many scientists now place dolphins among the cleverest animals on earth.
Dolphins love to mimic. If we swim on our backs, they do too. If we dive, they follow. Once a trainer blew a puff of cigarette smoke against the window of an observation tank, a young dolphin suddenly swam to its mother, nursed a moment, and spit out a cloud of milk. It is even more surprising that dolphins are able to understand sign language. One of Herman's dolphins has mastered more than 50 sign words. For example, it understands the difference between \and \
Scientists are learning how dolphins \its own 'signature' whistle.\
Dolphins help one another. When birth-giving takes place, females gather to keep off sharks. Later, while the mother looks for food, they take care of the young dolphin, swimming in a circle.
Dolphins reach out to us in astonishing ways. What would the world be like without them?
(1)、To the best of our knowledge, dolphins are ______. A：surprising fish B：interesting animals C：intelligent mammals D：man's friends 答案： C
(2)、In the second paragraph, \ A：brought the mother something to eat B：sucked milk from the mother dolphin C：asked to be taken care of D：gave some milk to her 答案： B
(3)、What was the young dolphin doing when it suddenly spit out a cloud of milk? It was ______.
A：having a little fun B：diving into the deep sea C：playing \ D：copying \ 答案： D
(4)、Which of the following do you think is more reasonable? A：We are still in the early stage of learning about these animals. B：We have little difficulty in understanding dolphins. C：Man will be able to talk freely to dolphins in the near future. D：Sign language is the only way to make dolphins understand us. 答案： A
(5)、What's the purpose of female dolphins' swimming in a circle? A：The young dolphin needs friends to play with. B：The young dolphin can play safely inside.
C：The mother will help them to learn swimming in a circle. D：The mother will be free to meet the father. 答案： B
2、Remember global warming? Back in December, the threat of climate change was thundering and the rich countries agreed to cut their carbon-dioxide and other green-house-related emissions. Since then, interest has cooled markedly, and many European countries are already running away from the promises they made so loudly a few months ago. But there has been much talk, and a bit of action, to encourage renewable energies such as wind, hydro, solar and all living organisms. These emit no greenhouse gases, but tend to cost more than coal, oil or gas.
The better, simpler idea is to remember that the easiest way to reduce something is to tax it - in this case, by taxing the carbon content power. The dirtier the power, the more tax it would pay. So dirty coal would be more expensive than clean coal, which would see its price rise in relation to oil, which would be more expensive compared with gas, which would lose some of its price advantage over renewables.
Unless a carbon tax was so huge as to be economically crippling, it would not remove the price differential between all renewables and fossil fuels. But it would narrow that gap, by fixing the differing environmental costs into the price - a useful principle in itself. It would also give renewable producers a strong incentive to cut costs, and fossil-fuel suppliers the motivation to clean their products.
Precedents suggest strongly that a carbon tax would be effective. But the disadvantage to carbon tax is political. After almost a decade of trying, the European Union gave up an attempt at a European carbon tax last year. Germany's ruling coalition is fighting against a proposed energy tax. In America, politicians believe that even mentioning the notion is certain death. But many of the political objections could be met if a carbon tax were made up for the loss elsewhere, for example by lowering payroll or sales taxes. There is always suspicion when governments come up with clever new ways to tax, and rightly so. The response to that suspicion should be to win the argument, not to abandon it.
(1)、According to the passage, the easiest way to remove global warming is ___________. A：to encourage people to use renewable energies
B：to cut down the cost of wind, hydro, solar and all living organisms C：to force people to pay more tax for the carbon content of power D：to talk less but act more 答案： C
(2)、The standard of paying tax was _________.
A：that the more carbon content of power it contained, the higher tax one would pay B：that oil would be more expensive than clean coal C：that renewables would be most expensive of all
D：in the order that renewables are the most expensive while clean coal the cheapest 答案： A
(3)、We can infer from the passage that carbon tax ___________. A：may not be as effective as people expect B：has encouraged renewable producers to cut costs
C：has reduced consumption of the carbon content energy successfully D：couldn't be that effective if fossil fuels would not be forbidden 答案： A
(4)、The word\ A：greatly increasing B：seriously weakening C：sharply declining D：abruptly halting 答案： B
(5)、The reason why many countries stopped introducing carbon tax eventually was mainly that ___________.
A：governments had tried to put it into effect for many years but with no obvious result B：if one country made up the loss by paying the carbon tax, other countries would follow it C：governments were afraid of being suspected if they adopted the new tax
D：governments had been discussing what to do with carbon tax for a long time, but they hadn't come to an agreement 答案： C 二、词汇与语法
1、______ difficulties we may come across, we'll help one another to overcome them. A：Wherever B：Whatever C：However D：Whenever 答案： B
2、My neighbors on both sides of me have painted their houses, of course makes my house look shabbier than it really is. A：whose B：which C：that D：as 答案： B
3、________ difficult the situation was, we managed to survive. A：How
B：However C：What D：When 答案： B
4、They had to put the meeting off ________ so many people didn't show up. A：since B：unless C：for fear that
D：though 答案： A
5、Not only _______ our money, but we were also in danger of losing our lives. A：we lost B：lost we C：we did lose D：did we lose 答案： D
6、A genius is someone who can achieve something that few people are _______. A：capable of B：able to C：enabled to D：able of 答案： A
7、Large fish usually _____ small fish. A：gather B：take on C：feed on D：organize 答案： C
8、I'd like to ________ this old car for a new model, but I can't afford it. A：interchange B：exchange C：replace D：convert 答案： B
9、This famous temple is believed _________ about 800 years ago. A：being built B：having built C：to have built D：to have been built 答案： D
英语统考 大学英语A7复习题及参考答案
