阅读理解。 There are literally hundreds of national parks and wildlife areas in A
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阅读理解。 |
There are literally hundreds of national parks and wildlife areas in Africa that you can travel to. Here are the top four travel destinations in Africa: Tanzania-Serengeti NP During the annual migration, when the wildebeests and zebras pack_up and leave their living areas to find fresher ones, the Serengeti is an astonishing place to be. It"s a very good travel spot in Africa at other times of the year too but the migration has been ranked by many as one of the wonders of the natural world. Kenya-Masai Mara NP If you want to see the big cats, this wildlife park is the best of the best. Lion, leopard and cheetah abound and they are relatively easy to spot because of the grassland vegetation which means you get good views for miles around. Another big plus is the fact that going offroad is allowed and it is a big advantage because the animals will rarely oblige you and stay next to the major roads. South Africa-Kruger National Park For the variety of species no other place in Africa can come close to the Kruger Park. And because it is so large it has a number of different ecosystems that you can pass through in your search for animals and birds. It is one of the best managed parks in Africa and the accommodation is wellequipped, too. Zambia-South Luangwa National Park South Luangwa is a diamond in the rough, just waiting for enough exposure to bring it to its rightful place in the crown of prime Africa trips. It has been regarded as one of the best places in Africa to see the special leopard and it is the birthplace of the walking travel. |
1. The underlined phrase "pack up" in Paragraph 2 means ________. |
A. rise B. suffer C. gather D. scatter |
2. Kruger National Park is different from the other parks in that ________. |
A. there are many kinds of species B. there are a lot of high trees C. it is the largest park in Africa D. the hotels own enough rooms |
3. People like South Luangwa National Park because ________. |
A. there is a diamond in the park B. it is the best park in Africa C. they can see wildlife on foot D. it is the best wonder in the world |
4. The writer"s purpose in writing the text is to ________. |
A. tell us something about natural animals B. discuss some problems in African travel industry C. persuade more people to travel to Africa D. introduce to us some top natural parks in Africa |
答案
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Nobody has ever succeeded in their attempt to stay young and live a very long life. 1 But is this really true? Dr Aubrey de Grey thinks that we can stop people getting old and that in about 20 years, people will be able to live to be 1,000 years old! 2 In Dr Grey"s opinion, getting old is a problem that can be solved. 3 If we can cure this disease, we can stop the aging process.We can also make people have young bodies again. Dr Grey believes that science will soon be able to stop the causes of aging so that a person"s body won"t get weak and won"t suffer from the typical diseases of old age. Dr Grey compares the human body to a house.As the house gets older, some things must be repaired.Broken hearts must be replaced.The same thing can happen with the human body, he thinks. We can use stem cell technology to grow new, healthy tissue to replace the old, damaged one.We can also try to remove diseasecausing molecules in our bodies._5_. 6 However, they admit that Dr Grey"s ideas have not yet been proved wrong.Dr Grey is convinced that his opinions are realistic and that his research is very important.If aging is a disease, he says, we must try to cure it. A. At the same time, people"s bodies will stay young and healthy. B. Scientists succeeded in solving the problem of aging long ago. C. A lot of scientists think his ideas not realistic. D. When our bodies change as we get older, this is like a disease. E. New deadly diseases may also be cured, if we can stop the aging process. F. It seems that everybody must get old and die. G. In this way, a person could easily live to be 1,000 years old.
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In their book Time to Eat the Dog: The Real Guide to Sustainable Living, Robert and Brenda Vale say keeping a mediumsized dog has the same ecological impact as driving 10,000 km a year in a 4.6 liter Land Cruiser. "We"re not actually saying it is time to eat the dog. We"re just saying that we need to think about and know the ecological impact of some of the things we do and that we take for granted." Constructing and driving the jeep for a year requires 0.41 hectares of land, while growing and manufacturing a dog"s food takes about 0.84 hectares-or 1.1 hectares in the case of a large dog such as a German shepherd. Convincing flesheating cats and dogs to go vegetarian for the sake of the planet is a nonstarter, the Vales say. Instead they recommend keeping "greener", smaller, and more sustainable pets, such as goldfish, chickens or rabbits. The book"s playful title, and serious suggestion that pet animals may be usefully "recycled", by being eaten by their owners or turned into pet food when they die, may not appeal to animal fans. Annoying as the idea may be, the question is valid given the planet"s growing population and limited resources, Robert Vale said. "Issues about sustainability are increasingly becoming things that are going to require us to make choices which are as difficult as eating your dog. It"s not just about changing your light bulbs or taking a cloth bag to the supermarket," he said. "It"s about much more challenging and difficult issues," he added. "Once you see where cats and dogs fit in your overall balance of things, you might decide to have the cat but not also to have the two cars and the three bathrooms and be a meat eater yourself." |
1. The authors gave their book the playful title to ________. |
A. make it amusing B. create a vivid image C. show writing skills D. arouse people"s concern |
2. In Paragraph 3 the writer mainly wants to tell us ________. |
A. the amount of consumed land B. the neglected ecological impact C. some familiar examples D. some actual figures |
3. Who may not like the idea of "recycling" pet animals? |
A. Manufacturers. B. Drivers. C. Animal fans. D. The authorities. |
4. What do the authors think of living a sustainable life? |
A. Challenging. B. Inspiring. C. Inviting. D. Touching. |
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On a typical hot August day in Xianyou County, Fujian Province, Zeng Demei, a retired worker in his seventies, hurries down a busy street.In his hand is a black leather bag.Zeng opens his bag, taking out two forms. 1 . Each of the forms contains detailed information of a student.On his arrival two hours later a woman greets him and leads him to her office where another man is waiting.They are the two village officials. They inspect the forms handed to them by Zeng and immediately recognize the girls. 2 . "It"s a pity but it doesn"t matter."says Zeng, who wastes no time in deciding to look for the remaining child, Su Qiuju. After half an hour, they stop outside a small house made of mud brick.A middleaged man and a girl in a faded pink dress greet them.Su Qiuju is eight years old.She was forced to drop out of school after both her parents died.She is now living with her uncle who cannot afford his own children"s education. However, the year of education Su Qiuju did complete was a successful one._3_. When they are about to leave, Zeng says, "I must find a supporter for this girl to sponsor her education."Zeng has made it his retirement task to help children complete their schooling.Back in 1999, Zeng took part in a campaign started by the local women"s organization to help students from poor families. __4 _. His task had begun and since then he has spent his time persuading his friends and neighbors and others to donate money."To me, children"s education is the most important. __5 _. I have to find sufficient funding before the school opens in September." When asked how long he will keep up his vital work as the community"s guardian angel, he has a simple reply."Not until my eyes can"t see, and my feet can"t move." A. They were having problems with their schoolwork B. These are for the two girls he"s going to visit this morning C. They live in a small village not very far, though only one of the girls is still living at home D. She displayed a talent for handwriting, writing her threecharacter name neatly and beautifully E. The thought of students dropping out of school bothers me so much that I can"t get to sleep at night F. Of course, some people question why I would want to give up my retirement to go to so much trouble G. He was so overcome by the tough situation of many poor children that he donated all his money to help out a girl
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Similar things continuously happened in Haiti and Chile. Thousands of people were buried in the earthquake and lost their lives. What if we could have warned them? People are always trying hard to find a way of preventing building collapsing (倒塌). Better materials and technology help, but are not a solution. Just like humans, a building has its own life circle from "birth" to "death". If we know when a building is going to collapse, we can repair it in advance or get out before it falls. Now, scientists at the University of Illinois have developed a material that turns red before it breaks. The invention could be used in things like climbing ropes, or bridge supports. The secret behind the colorchanging material is a type of molecule (分子). A molecule is a group of atoms held together by chemical bonds (化学键). Imagine you and your friends standing in a circle, holding hands. Each person stands for one atom, your hands represent the bonds, and the entire circle represents a molecule. If one person lets go of his or her hands, the molecule changes color. The research team put the molecule into a soft material. When the researchers stretched (拉紧) the material, it turned bright red a few seconds before it broke into two pieces. When they repeatedly stretched and relaxed the material, without breaking it, it only turned a little red. The major problem is, light can get rid of the red color. When the team shone a bright light on the molecule, the broken bond was fixed, and the color disappeared. If bright light keeps the red color from appearing, the material"s warning system will be useless. Scientists still have a lot of work to do before the colorchanging molecule can be used outside the lab. |
1. The passage mainly about ________. |
A. a way of preventing buildings from breaking down B. a way of warning before buildings collapse C. a series of earthquakes in Haiti and Chile D. a newlydiscovered structure of a molecule |
2. According to the passage, we can conclude that ________. |
A. scientists have found the life circle of buildings from "birth" to "death" B. there are problems to solve before putting the new material to use C. bright light makes the red color visible to human eyes D. the new material is unlikely to be used in building bridges |
3. The colorchanging molecule can ________. |
A. remind people to leave buildings before they fall B. help building materials get stretched if necessary C. prevent the earthquake from killing people D. make building materials much stronger |
4. The warning system is based on the fact that ________. |
A. red color won"t show up when it meets bright light B. a building has its own life circle of "birth" to "death" C. a material with a certain type of molecule can turn red when stretched D. the broken bond will fix itself when a molecule meets bright light |
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Over the last 25 years, British society has changed a great deal-or at least many parts of it have. _1 . Ideas about social class-whether a person is "workingclass" or "middleclass" -are one area in which changes have been extremely slow. In the past, the workingclass tended to be paid less than middleclass people. The typical working man would collect his wages on Friday evening and then, it was widely believed, having given his wife her "housekeeping", would go out and squander the rest on beer and betting. The old style of what a middleclass man did with his money was perhaps nearer the truth. He was and still is inclined to take a longerterm view. Not only did he regard buying a house as a most important thing, but he also considered the education of his children as extremely important. __2_. Only in very few cases did workers have the opportunity (or the education and training) to make such longterm plans. _3_. In a large number of cases factory workers earn as much as their middleclass supervisors (管理者). Social security and laws to improve century, have made it less necessary than before to worry about "tomorrow". Workingclass people seem slowly to be losing the feeling of inferiority(自 卑感). In fact there has been a growing tendency in the past few years for the middleclasses to feel slightly ashamed of their position. _4_.They generally tend to share very similar tastes in music and clothes, they spend their money in having a good time, and save for holidays or longerterm plans when necessary. There seems to be much less difference than in precious generations. _5_. As long as this gap exists, there will always be a possibility that new conflicts and jealousies will emerge, or rather that the old conflicts will reappear, but between different groups. A. Nowadays, a great deal has changed B. Both of these provided him and his family with security C. As a result, differences in lifestyles and attitudes came into existence D. However, we still have a wide gap between the wellpaid and the lowpaid E. In recent years, the workingclass people have begun to design longterm plans F. In some ways, however, very little has changed, particularly where attitudes are concerned G. The changes in both lifestyles and attitudes are probably most easily seen among younger people
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