Farmers, especially in developing countries, are often criticized for cutting do
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Farmers, especially in developing countries, are often criticized for cutting down forests. But a new study suggests that many farmers recognize the value of keeping trees. Researchers using satellite images found at least ten percent tree cover on more than one billion hectares of farmland. That is almost half the farmland in the world. Earlier estimates were much lower but incomplete. The authors of the new study say it may still underestimate the true extent worldwide. The study found the most tree cover in South America. Next comes Africa south of the Sahara, followed by Southeast Asia. North Africa and West Asia have the least. The study found that climate conditions alone could not explain the amount of tree cover in different areas. Nor could the size of nearby populations, meaning people and trees can live together. There are areas with few trees but also few people, and areas with many trees and many people. The findings suggest that things like land rights, markets or government policies can influence tree planting and protection. Dennis Garrity, who heads the World Agroforestry Center, says farmers are acting on their own to protect and plant trees. The problem, he says, is that policy makers and planners have been slow to recognize this and to support such efforts. The satellite images may not show what the farmers are using the trees for, but trees provide nuts, fruit, wood and other products. They also help prevent soil loss and protect water supplies. Even under drought(干旱)conditions, trees can often provide food and a way to earn money until the next growing season. Some trees act as natural fertilizers. They take nitrogen(氮气)out of the air and put it in the soil. Scientists at the Center say the use of fertilizer trees can re-duce the need for chemical nitrogen by up to three-fourths. Trees also capture carbon dioxide, a gas linked to climate change. 小题1:Through the study, the researchers found that .A.there are more trees on farmlands than expected | B.fewer trees are being cut in developing countries | C.most farmers still don’t realize the value of trees | D.trees play a key role in preventing climate change | 小题2:Which of the following has the least tree cover?A.Southeast Asia | B.West Asia. | C.South America. | D.Africa south of the Sahara. | 小题3:In Dennis Garrity’s opinion, .A.most farmers care about nothing but their own interests | B.there are usually few people living in areas with few trees | C.government plays a small role in tree planting and protection | D.government should support farmers in planting and protecting trees | 小题4:The sixth paragraph mainly tells about .A.how farmers plant trees | B.what products trees can bring | C.the importance of trees to farmers | D.the environmental value of tree cover |
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答案
小题1:A 小题2:B 小题3:D 小题4:C |
解析
试题分析:文章介绍现在世界上农场树林占有的面积还是很多的,农民正意识到树木对人对环境的重要性。 小题1:细节理解题:从第二段的句子:Earlier estimates were much lower but incomplete. The authors of the new study say it may still underestimate the true extent worldwide.可知早先的估计树林面积是低的,不完整的,也就是现在的农场的树林比预料的要多。所以选A。 小题2:细节题:题目问:下面的哪个地方树木面积最少?可以根据这几个地方定位到第三段:The study found the most tree cover in South America. Next comes Africa south of the Sahara, followed by Southeast Asia. North Africa and West Asia have the least. 可知West Asia是最少的。选B。 小题3:细节题:题目问:Dennis Garrity是怎么认为的,根据Dennis Garrity定位到第五段:Dennis Garrity,….says farmers are acting on their own to protect and plant trees. The problem, he says, is that policy makers and planners have been slow to recognize this and to support such efforts.说明政府应该支持农民种树,保护树,所以选D。 小题4:段落大意题:题目问:第六段主要讲了什么?重点放在第六段,从文章第六段的内容,可知讲的是树木对农民的重要性。 |
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Want to travel as cheaply as possible while enjoying the great scenery as much as you like? Backpacking is the way. As the most popular traveling choice among young western people, backpacking allows you to travel at your own free will. Carrying a tent, sleeping bag and clothes, backpackers also need to pack an attitude that will help them deal with many mental and physical challenges. It is a thrill to put our ability to test and challenge ourselves with sorts of difficulties we might come across. So, backpacking is something young people can hardly deny. Young people in Europe often travel around by train. Now, with plane tickets dropping in price, more are traveling to distant countries, such as Australia and China. And some just travel within their own countries. But no matter where a backpacker travels, planning in advance is important if he or she wants to enjoy the trip. Clothing In summer, light, waterproof clothes are best. Backpackers must remember to travel lightly and not pack too many clothes. Medicine There are many medicines, especially for summer, such as those for sunstroke, snake bites and mosquitoes. Others are useful in every season, such as those for common colds, poisoning and diarrhea. Cards Three types of cards are of great value for backpacks: student Identity Card, personal ID and a credit card. A student ID card can be helpful for saving money. It often gets train tickets and entrance tickets for cheaper prices in many Western countries. Personal ID card can, not only get you out of trouble with local police, but also prove useful in all sorts of other situations. Carrying a credit card can be a safe way of carrying money, as cash can easily get lost, stolen or wet. And of course, don’t forget to enjoy your trip! 小题1:What does the underlined sentence mean?A.Backpackers also need to be in high spirits when they want to travel. | B.Backpackers may also face dangerous situations. | C.Backpackers also need to talk with doctors about their traveling. | D.Backpackers need to make preparation for many kinds of difficulty in advance. | 小题2:What does the underlined word “waterproof” mean?A.Easy to wash. | B.Not letting water go through. | C.Washed without water. | D.Used in water. | 小题3:If you are stopped by a policeman in the street, you should show ______ to the police.A.your student ID | B.your credit card | C.your personal ID | D.your passport | 小题4:What is of most advantage to backpackers?A.They can travel very easily. | B.They won’t worry about where to live. | C.They can have the chance to take some adventures. | D.They can take some physical exercise. | 小题5:What is the author’s purpose to write this passage?A.To give some ideas about traveling. | B.To encourage the young to travel. | C.To tell people how to avoid something unpleasant. | D.To offer some useful advice for traveling. |
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Going green is something that affects every single one of us. Whether by recycling those plastic water bottles, or by cutting down on electricity in your home, the importance of going green on a personal level is extremely important. But, when you’re a millionaire NBA basketball star, how do you help out the environment? Yao Ming is a basketball player that plays for the Houston Rockets and has spoken out against hunting of sharks for fins, a delicious food in his native China. He is also the United Nations’ Environmental champion. His goal is to raise awareness of climate change and energy-saving. “I will work with young people across the world and try to inspire them to plant trees, harvest rainwater and to become environmental champions in their own communities.” The Philadelphia Eagles, a professional American football team, are really doing their part to give back to the community. The Eagles Go Green page has a “Green Energy Calculator” and according to the web site fans have saved $ 73,674.90 a year and saved 666,320 pounds of CO2 per year. Also, the Eagles have set up a “Stop global warming virtual march(虚拟游行)on Washington”, a march across America for one year, through the Internet with a goal to bring fans together and to urge leaders to deal with the serious problem of global warming now. Bob Burnquist, a Brazilian skateboarder, is a member of Action Sports Environmental Coalition and founder of a program that gets organic foods and farming into schools for healthy lunch programs. Bob also has a huge homegrown organic farm where he hosted a gathering in celebration of Earth Day. Kelly Slater is a surfer and eight-time champion, but he also supports saving the coral reefs world wide. He has founded the Kelly Slater Invitational Competition which raises funds and awareness for Reef Check, which is able to get its message out to a large group of guests including professional surfers, film and music stars, and other famous people. 小题1:According to the passage, Yao Ming wants to ________.A.help the Houston Rockets win the NBA championship | B.ask the United Nations to protect sharks in China | C.encourage young people to care about the environment | D.train more young people to become players of NBA | 小题2:What have the Philadelphia Eagles done to help out the environment?A.They have called on fans to do things to reduce global warming. | B.They have marched on Washington to bring fans together. | C.They have saved $ 73,674.90 for solving global warming. | D.They have reduced CO2 emission by 666,320 pounds per year. | 小题3:Which of the following statements is TRUE according to the last two paragraphs?A.Bob Burnquist created Earth Day. | B.Bob Burnquist eats only organic foods. | C.Kelly Slater donated a lot of money. | D.Kelly Slater held a competition. | 小题4:The best title for the passage would probably be _________.A.Highly Competitive Athletes | B.Environment-friendly Athletes | C.World-famous Athletes | D.Millionaire Athletes | 小题5:What can we learn from the passage?A.Only famous people need to care about environmental problems. | B.America is the country that takes best care of environment. | C.Environmental problems have a common effect on everyone of us. | D.Yao Ming’s goals to raise people’s awareness of environment are mainly about climate change and air pollution. |
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Among the four skills in learning English,which one of these is the “odd-man-out”? The answer is speaking.The other three you can do alone on your own.But you can’t really speak alone! Speaking to yourself can be “dangerous” because men in white coats may come and take you away! Where can you find people to speak English? And how can you practise speaking when you are alone? At school If you pay to go to a language school, you should use the opportunity to speak.If your teacher asks you to speak in pairs or groups with other students, try to say as much as possible.Don’t worry about your mistakes.Just speak! Conversation Clubs Many cities around the world have conversation clubs where people can exchange one language for another.Look in your local newspaper to find a conversation club near you.They are usually free although some may charge a small entrance fee. Shopping Even if you don’t want to buy anything,you can ask questions about products that interest you in a shop.“How much does this cost?” ‘‘Can I pay by cheque?” Often you can start a real conversation-and it costs you nothing! Café and Bars There are often American,Britain,Irish and Australlan bars in many large cities.If you can find one,you’ll probably meet many people speaking English as a first or second language. Language ia all aroundyou Everywhere you go,you find language.Shop names,street names,advertisements,notices,and car numbers—When you walk down the street,practise reading the words and numbers that you see.Say them to yourself. It’s not exactly a conversation, but it will help you to“think” in English.But don’t speak too loud! Songs and Video Repeat the words of an English—language song singing with the music until it becomes automatic.It’s good practice for your memory and for the mouth muscles that you need for English. Above all, speak as much as possible! Make as many mistakes as possible! When you know that you have made a mistake,you know that you have made progress! 小题1:What does “odd-man-out” probably mean according to the passage?A.Someone or something appearing different from the others. | B.Someone or something standing out of the group. | C.Someone or something arranged in pairs. | D.Someone or something that can be easily mistaken for another. | 小题2:What might happen if you speak to yourself loudly in public?A.The police will take you away and punish you. | B.The doctors will force you to stay in hospital. | C.You will have to pay to escape being punished. | D.You will be forbidden to be member of the club. | 小题3:In which places can you learn English NOT free of charge?A.At school, in conversation clubs and café and bars. | B.At school, in shops and café bars. | C.In conversation clubs,shops,songs and video. | D.In conversation clubs and in the streets. | 小题4:Why does the writer say “Make as many mistakes as possible”? Because .A.everyone will make mistakes in learning English | B.everyone will meet people speaking English with some mistakes | C.making mistakes is a must in making progress in learning English | D.making mistakes can make one realize the importance of speaking | 小题5:According to the passage,which way is NOT likely to be accepted by English beginners?A.Recite poems loudly along the riverside. | B.Listen to some English fashion songs and video. | C.Find an Englishman to speak English with. | D.In class, try to practise in groups or pairs. |
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Butterflies are some of the most fascinating and beautiful insects in the world. Adult butterflies will live about 2 to 4 weeks. They use their senses of sight, touch, hearing, smell, and taste to survive in the world, find food and mates, lay eggs in an appropriate place, migrate, and avoid hungry enemies. Butterflies have large compound eyes, which allow them to see in all directions without turning their heads. Like most insects, butterflies are very nearsighted, so they are more attracted to a sea of flowers than individual plants. Butterflies do not “see” colors such as red, green, and yellow, but they can sense sunlight, which indicates the direction the sun is shining, as well as ultraviolet light, which is present on many flowers and guides butterflies to honey sources. Butterflies have a very well-developed sense of smell, but it is not in their nose, since they don"t have one. Sense receptors are located in their antennae, feet, and many other parts of the body. They can help butterflies find their favorite flower honey food, and mates. Butterflies" feet have sense organs that can taste the sugar in flower honey, letting the butterflies know if something is good to eat or not. Some females also carefully choose host plants by tasting to find appropriate places to lay their eggs. Adult butterflies feed their babies using a long tube. Butterflies force blood into the tube to straighten it out, allowing them to feed. Butterflies get all their food from this tube. Butterflies don"t have ears. Instead they “hear” sounds through their wings by sensing changes in sound vibrations. Butterflies may possess senses we don"t even know about yet, because their body structure is very different from ours, and therefore difficult to understand, when observed through our own human senses. 小题1:The text mainly focuses on ________.A.butterflies" living habits | B.butterflies" beauty | C.butterflies" senses | D.butterflies" daily activities | 小题2:What can we learn from the 2nd paragraph?A.Butterflies can see in all directions and don"t need to turn heads. | B.Butterflies have good eyesight. | C.Butterflies are sensitive to bright colors including red and yellow. | D.Butterflies cannot sense the ultraviolet light. | 小题3:Why do female adult butterflies carefully choose the host plants?A.To find highqualified honey. | B.To have a good place for living. | C.To make it easier for them to hide from the enemies. | D.To find a proper place for their eggs. |
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The weather is getting hotter. You are thirsty(口渴的) playing basketball or riding home from school. A cold drink may be just the thing. But be careful what you are drinking. Something that looks cool may not be good for your health. There are plenty of “energy drinks” on the market. Most of them have beautiful colors and cool names. The lists on them tell you they are helpful to your health. Sounds great! But after a careful check you may find that most energy drinks have lots of caffeine(咖啡碱)in them. These drinks are especially aimed at young people, students, busy people and sports players. Makers sometimes say their drinks make you better at sports and can keep you awake. But be careful not to drink too much. Caffeine makes your heart beat fast. Because of this, the International Olympic Committee(IOC)(国际奥委会) has limited its use. Caffeine in most energy drinks is at least as strong as that in a cup of coffee or tea. Possible health dangers have something to do with energy drinks. Just one box of energy drink can make you nervous, have difficulty sleeping and can even cause heart problems. Scientists say that teenagers should be discouraged from taking drinks with a lot of caffeine in them. 小题1:Which of the following can be the best title of the passage? ______A.What’s the Use of Energy Drinks? | B.Who Can Drink Energy Drinks? | C.What’s that in Energy Drinks? | D.Why Can’t We Buy Energy Drinks? | 小题2:The underlined word “discouraged” can be replaced(替换) with ______.A.disliked | B.helped | C.stopped | D.encouraged | 小题3:From the passage we can know that ______.A.energy drinks are especially aimed at teenagers | B.energy drinks are helpful to teenagers’ study | C.sports players need to drink a lot of energy drinks | D.advertisements are important in getting people to buy energy drinks | 小题4:Many people like drinking energy drinks because of the following EXCEPT that ______. A.they have beautiful colors and cool names | B.they have lots of caffeine | C.they can keep them awake and better at sports | D.they are said to be helpful to health |
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