阅读理解。 Spread out a map of the world. What you see on it depends on the kind
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阅读理解。 |
Spread out a map of the world. What you see on it depends on the kind of map you have. Does it show cities and countries? Mountains and valleys? Maybe weather patterns? The variety of features is so great that one map just can"t handle them all. The earth is part of a nine planets solar system within the Milky Way galaxy. Its size and location aren"t very impressive. We inhabit the third planet from the Sun, which is only the fifth largest overall. Yet The earth has a talent for creating life. In fact, it"s the only place that has life so far! One form of life humans tends to take this for granted. Human activities like habitat destruction, pollution, and over-fishing have badly damaged life as we know it. Luckily, Earth is as tough as it is beautiful. But it doesn"t take an expert to see that one planet can only take so much. |
1. In the _____, there are _____ planets in all. |
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A. Milky Way galaxy; 7 B. solar system; 8 C. solar system; 9 D. Milky Way galaxy; 10 |
2. The earth is the _____ largest planet in the solar system and the _____ planet from the Sun. |
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A. fifth; third B. third; fifth C. second; third D. third; sixth |
3. As is known to us all, _____ has badly damaged the earth life. |
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A. habitat destruction B. pollution C. over-fishing D. all of the above |
答案
1-3: CAD |
举一反三
阅读理解。 |
A long time ago people thought that the sun went round the earth. In some countries people even said that the sun was a god (神). They thought the god drove across the sky each day on a golden horse. Now we know the earth goes round the sun. It takes the earth a year to go all way round the sun. Today men even know how far it is for the earth to go round the sun. They tell us that the earth travels over a thousand miles a minute on its journey round the sun. The sun is really a star. It is much bigger than the earth and it is very hot. Some people have been to the moon but we know that no one can ever go to the sun. It is far too hot for people to live anywhere near it. The sun is three hundred thousand times heavier than the earth and more than million times larger. |
1. A long time ago, people said the sun was _____. |
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A. a golden horse of god B. a god on a golden horse C. a god with golden dress D. a god and a golden horse |
2. The earth travels over _____ miles an hour. |
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A. 1,000 B. 100,000 C. 6,000,000 D. 60,000 |
3. One year is _____. |
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A. the time for the earth to turn round. B. the time the earth travels one thousand miles. C. one circle the earth goes round the sun. D. the journey of the earth. |
阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填人一个适当的词或使用 括号中词语的正确形式填空。 |
If you want to improve your 1 , you"d better 2 (listen) to BBC English which is part 3 the BBC World Service. It broadcasts all kinds of programs, such 4 difficult grammar points, life in Britain, differences 5 written and spoken English and 6 on. It is easy for you to find out some information 7 the programs. You just need to write to BBC English 8 ask for it. In China there are 9 English programs like Follow Me on TV 10 on the radio. They are usually easy to receive and understand and they are very useful to you. 1.______ 2.______ 3.______ 4.______ 5.______ 6.______ 7.______ 8.______ 9.______ 10.______ |
阅读理解。 |
Monarch butterflies (黑脉金斑蝶) are a common summer sight in the northern United States and Canada. These large orange and black insects (昆虫) brighten parks and gardens as they fly lightly among the flowers. What makes monarchs particularly interesting is that they migrate (迁飞)-all the way to California or Mexico and back. They are thought to be the only insect that does this. Every year in the late summer monarchs begin their journey to the south. Those heading for Mexico go first for the Louisiana-Mississippi area, then fly across the Gulf of Mexico into Texas. Once in Mexico, they settle themselves in one of about fifteen places in a mountain forest filled with fir trees. Each place provides a winter home for millions of monarchs. The butterflies are so many that they often cover entire trees. When spring comes, they begin their long journey north. The question is often asked whether every butterfly makes the round-trip journey every year. And the answer is no. The average monarch lives about nine months. So one flying north might lay eggs in Louisiana and then die. The eggs of that generation may be found in Kentucky; the eggs of the next generation may end up in Wisconsin or Michigan. The last generation of the season, about the fourth, will make their way back to Mexico and restart the journey. Scientists learn about monarchs" migration by catching and making marks on the insects. By recatching a monarch with such a mark and noticing where it came from, the next scientist can get to know things like the butterfly"s age and its routing (路线). |
1. One of the places where monarchs spend the winter is _____. |
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A. the Gulf of Mexico B. an area in Mississippi C. a forest in Mexico D. a plain in Texas |
2. The routing of monarchs" migration can be learned _____. |
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A. by collecting their eggs in the mountains B. by examining the marks made on them C. by comparing their different ages D. by counting the dead ones in the forests |
3. What is the subject discussed in the passage? |
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A. Life and death of monarchs. B. Scientists" interest in monarchs. C. Winter home of monarchs. D. Migration of monarchs. |
阅读理解。 |
The fiddler crab (蟹) is a living clock. It indicates the time of day by the colour of its skin, which is dark by day and pale by night. The crab"s changing colour follows a regular twenty-four hour plan that exactly matches the daily rhythm of the sun. Does the crab actually keep time, or does its skin simply answer to the sun"s rays, changing colour according to the amount of light which strikes it? To find out, biologists kept crabs in a dark room for two months. Even without daylight, the crab"s skin colour continued to change exactly on time. This characteristic probably developed gradually in answer to the daily rising and setting of the sun, to help protect the crab from sunlight and enemies. After millions of years it has become completely controlled inside the living body of the crab. The biologists noticed that once each day the colour of the fiddler crab is especially dark, and that each day this happens fifty minutes later than on the day before. From this they discovered that each crab follows not only the rhythm of the sun but also that of the tides (潮水). The crab"s period of greatest darkening is exactly the time of low tide on the beach where it was caught! |
1. The crab"s changing colour _____. |
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A. tells the crab what time it is B. protects the crab from the sunlight and enemies C. keeps the crab warm D. is of no real use |
2. When the fiddler crabs were kept in the dark, they _____. |
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A. did not change colour B. changed colour more quickly C. changed colour more slowly D. changed colour on the same timetable |
3. The crab"s colour-changing ability was probably developed _____. |
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A. in the process of evolution (进化) B. over millions of years C. by the work of biologists D. both A and B |
4. The best title for this selection would be _____. |
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A. The Sun and the Tides B. Discoveries in Biology C. A scientific Study D. A Living Clock |
阅读理解。 |
Apparently, we are safe neither at home nor in the business office. We use water in both places, but the research shows that chemicals added to our local water supply to kill harmful bacteria can have unwanted side effects. These chemicals can cause potential harm through drinking and in seemingly harmless activities as cleaning one"s house. They are released (set free) from water by daily actions like water running out of tap, spraying from garden pipes, or splashing in dishwashers and washing machines. As the water is moving, these chemicals are released into the air and then breathed in. Once inside our bodies, they start to affect our health. Does this mean we should stop bathing? No, say the scientists, but we should put all pollution into perspective. Activities at home such as the burning of coal, cooking oil, or even candles release carbon monoxide and particulates such as cigarette ashes which have been proven as harmful to health as working or living near heavy traffic. New rugs, bedding, and even clothing give off that "new smell," which is a sure sign of chemicals. In the office, newly applied paint, newly purchased telephones and other telecommunications equipment, and computers release polluting chemicals, too. As offices and homes often have inadequate ventilation (通风), these chemicals can build up to become health problems. Their poisonous effects are only now being slowly recognized. These facts suggest that, at a minimum, proper airing of newly purchased goods with an obvious chemical smell is a wise warning. Home and office windows should be opened during good weather. Evenone"s car needs to be ventilated as well while in the garage. We need further research to understand better other potential health dangers, too. For example, the effects of overcrowding of schools (carbon dioxide build-up), the factory work environment (an endless list of potentially dangerous substances), and even home heating and cooling (the air conditioner may be our enemies, not our friends) have only recently started to come to light. Until we understand the effects of our new technological environment better, we can only hope that "there is no place like home." |
1. What is the main idea of the first paragraph? |
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A. The air we breathe in is harmful. B. The water in everyday use is unsafe. C. Chemicals are added to the drinking water. D. Chemicals are released in the running water. |
2. In Paragraph 2, the underlined sentence means that _____. |
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A. bathing should be done with caution B. homes and offices should be aired often C. any pollution should be taken into consideration D. we should prevent any pollution from doing harm to us |
3. What is the purpose of the passage? |
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A. To call on us to guard our water. B. To show us that no place is like home. C. To make us aware of the pollution around us. D. To argue that neither homes nor offices are safe. |
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