North American back bears are shy animals. They are fearful by nature, and will
题型:不详难度:来源:
North American back bears are shy animals. They are fearful by nature, and will usuallyrun away if they see or hear people. Because of this, it can be difficult for scientists to learnabout these animals. In order to study black bears, researchers from New Jersey, USA, catch bears and usedrugs to help them go to sleep. Researchers then work out the size and the weight of the bear,take blood to test for diseases, remove a tooth and take it to the lab to find out its age. Fromthese studies,researchers want to find out how many bears live in New Jersey, how long theylive, and how many babies theyproduce. But in Minnesota, USA, researchers study bears that are completely awake. The bears knowthe researchers" voices and they are not afraid of die research team. With the help of a few grapes to keep the bears busy, researchers can touch them to check their hearts, look at their teeth, and do other jobs.Researchers can also walk or sit with bears for hours and make videos to learn about their everyday lives. In both places, the main purpose is the same—to make sure there is a healthy population of black bears. But theresearch methods and the kinds of information that researchers, are able to collect are quite different.
小题1:In the first paragraph, we can learn that North American black bears are _______.A.shy and fearful animals | B.not found today | C.well known to scientists | D.not afraid of people | 小题2:The word "remove" in the second paragraph probably means _____ in Chinese.小题3:Which of the following may NOT be included in the New Jersey studies on bears?A.The age. | B.The way of their communication. | C.The weight. | D.The number of babies they produce. | 小题4:In the Minnesota studies, researchers _____.A.can never get close to the bears | B.study the bears while they are asleep | C.use grapes to make the bears full | D.learn a lot about the bears" everyday lives | 小题5:What do the two studies have in common?A.Research places. | B.The main purpose. | C.Research methods. | D.Collected information. |
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答案
小题1:A 小题2:A 小题3:B 小题4:D 小题5:B |
解析
试题分析:本文介绍北美黑熊,及这种熊的生活习性。希望通过研究了解在新泽西的北美熊数量、它们的存活时间和诞生宝宝的数量。 小题1:细节理解题。根据第一段前两句话North American back bears are shy animals. They are fearful bynature, and will usuallyrun away if they see or hear people.可知答案为A。 小题2:词义猜测题。文章划线部分单词所在句子译为“拔下一颗牙齿来研究他们的年龄。”故选A。 小题3:细节理解题。根据第二段第二句话Researchers then work out the size and the weight of the bear,take blood to test for diseases, remove a tooth and take it to the lab to find out its age.“调查者们然后计算出实验需要的血型和血的数量,取下一颗牙齿并拿到实验室以此推测他们的年龄。”可知答案为B。 小题4:细节理解题。根据第三段最后一句话Researchers can also walk or sit with bears for hours and make videos to learn about their everyday lives.“调查者们还可以和这些熊一起行走闲坐数小时并制作录像来理解它们每天的生活。”可知答案为D。 小题5:细节理解题。根据最后一段第一句话In both places, the main purpose is the same—to make sure there is a healthy population of black bears.“在这两个地方,主要目的是一样的,都是为了确保可以得到一个健康数量的黑熊。”可知答案为B。 |
举一反三
Smartphone ,poor sight Look around and you’ll see people busy on their smartphones. Smartphones do make our lives easier . But have you ever thought about what they mean to you eyes? According to a study ,half of British people own smartphones and they spend an average of two hours a day using them . There has been a 35% increase in the number of people in the UK who suffer from shortsightedness since smartphones were introduced there in 1997. Staring at smartphones for long time gives you dry eyes. When looking at something in the distance ,your eyes automatically blink a certain number of times. However ,when you look at things closer to your face ,the blinking slows down . This reduces the amount of tears and causes discomfort in your eyes. Another bad habit is using smartphones in dark rooms before going to sleep . If you look at a bright screen while your pupils become larger ,too much light enters your eyes. This can do harm to the eyes and cause a disease called glaucoma. While you’re probably not going to stop using to your smartphone,there are a few things you can do to protect your eyes. Hold your phone at least 30 continues away from your eyes when using it. Take a break every hour and try the following :look at something at least five meters from you and then focus on the tip of your nose. Repeat this several times. It should reduce the discomfort in your eyes. |
There are many kinds of pollution around us, air pollution, soil pollution, noise pollution and light pollution. They are bad our health in many ways. Burning gas, oil and coal creates air pollution. It can cause sore eyes and problems. With the increase of pollution and the development of industry, litter is everywhere. It makes our environment dirty. People put lots of rubbish in the land. Farmers use too many in the fields. They destroy the soil. So soil pollution has become serious. Noise pollution can make people . For example, people may lose their hearing if they work in a place for a long time. Too much noise can cause high blood pressure . Working for a long time in strong, changeable light cause some kinds of illnesses. It makes people feel and is especially bad for the eyes. With pollution, our planet will become greener and our health will be better. Let’s be greener people.
小题1: | A.such as | B.for example | C.such like | D.as well as |
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小题3: | A.breaths | B.breathe | C.breathed | D.breathing |
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小题4: | A.chemical | B.chemicals | C.chemistry | D.chemistries |
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小题5: | A.blind | B.lame | C.black | D.deaf |
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小题6: | A.noise | B.noisy | C.noisily | D.noises |
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小题7: | A.as well | B.too | C.either | D.also |
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小题8: | A.must | B.should | C.may | D.need |
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小题9: | A.terrible | B.comfortable | C.terribly | D.comfortably |
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小题10: | A.little | B.a little | C.less | D.fewer |
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Many of us don’t pay attention to the importance of eye care. It’s said that if you take care of your body, then you can be healthy. That is why our eyes should be given a lot of care. Natural eye care should be put in a number one place. There are several causes leading to poor eyesight like not enough food, gene(基因) and aging(年龄增长). Televisions, computers and reading are also the causes of having poor eyesight. If you happen to work in front of the computer, it is best to take a rest every once in a while. Something dirty can cause redness and they will make you feel uncomfortable. It is bad for your eyes, too. If this happens, the best way is to clean your eyes by using cold water. You must also try your best to protect your eyes from harmful thing. For example, sunglasses are not just fashion but they can also serve as a great way to protect your eyesight from UV rays. Eating healthy foods will do good to your eyesight. Remember that vitamins(维生素) A、C and E are good for eyes. Try to eat food groups that have these vitamins. And you should do eye exercises because exercise protects your eyesight, too. If a person exercises regularly(规律地) and eats the right kind of food, his eyes will stay in good condition for a long time. All above are natural ways of eye care that help us keep healthy eyes. Being happy all the time can be helpful to a person’s eyesight, too. In a word, eye care is very important, no matter how old a person is. 小题1: __________ is the most important way to protect our eyes. A.Natural eye care | B.Taking medicine | C.Seeing the doctor | D.Being happy all the time | 小题2:All the following causes can lead to bad eyesight except _________. A.age | B.height | C.reading | D.computer | 小题3: What should you do if you have to work in front of the computer?A.Eat healthy foods. | B.Clean the eyes by using cold water. | C.Wear a pair of sunglasses. | D.Have a rest after working for a while. | 小题4: What do the under words “UV rays” mean?小题5:Which is the best title of the passage?A.Ways of Eye Care | B.Ways of Eye Exercises | C.Way of Being be Happy | D.Way of Being Healthy |
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Books Contents
| Leo the Snow Leopard By Craig Hatkoff
| It was written by the best story-teller. The story is about Leo, a young snow leopard(雪豹) that was helped by a kind man in the snowy mountains in Pakistan. Snow leopards are in danger. Leo was just two months old when he was found and he could not live in the wild on his own.
| Where Do Recyclable Materials Go By Sabbithry Persad
| Tiana has been learning about recycling at school. But after her dog, Bubbles, gets lost chasing after a recycling truck, she decides to learn a lot more about recycling! Following Tiana, readers will learn how to take care of the environment.
| The Scrap Kins Build By Brian Yanish
| Meet the Scrap Kins. They are friendly monsters. In the book, they’ll show you how to turn rubbish into some pretty cool things. Readers will learn how to make toy planes from plates, bags, old clothes and more. You know what they say: One person’s rubbish is another person’s love.
| Explore( 探索) Life Cycles ! By Kathleen M. Reilly
| Do you know the largest seed( 种子)in the world or an egg can weigh up to 4 pounds? You ’ll learn about all of these things and more with the latest book in the Explore Your World series( 系列). The books give readers a good look into the life cycles of plants and animals on the Earth.
| 小题1:How old was Leo when he was found?A.Four months old. | B.Two years old. | C.Three months old. | D.Two months old. | 小题2:If Jim is interested in making toys from rubbish, he will probably like to read______.A.Leo the Snow Leopard | B.The Scrap Kins Build | C.Where Do Recyclable Materials Go? | D.Explore Life Cycles! | 小题3:The four books are all about______.A.nature and the environment | B.monsters | C.animals | D.plants |
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A 15-year-old student who invented a flashlight(手电筒) getting power from the holder"s body heat is going home today from California with a big prize and a chance to do further research. Ann Makosinski was the only Canadian among the four winners at Google"s international science competition. Thousands of young scientists from around the world took part in the competition. Winning the science and technology competition was "a surprise". Ann said, "I think it will have a great influence on my future." Ann thanked her family for encouraging her interest in science and said that her first toy was a box of transistors(晶体管). Ann"s prize includes $ 25,000 and a "once in a-lifetime expericnce" from Google for her Hollow Flashlight, which has no moving parts or batteries. The idea for the invention came from seeing unwanted batteries and her friend"s experience. When Ann visited a friend in the Philippines, she saw the friend couldn"t study when it became dark because there was no electricity or light. She saw the need for a flashlight that has no batteries - Hollow Flashlight. In her project, Ann wrote "I made two flashlights that do not use any batteries or harmful materials. They do not create any noise and will always work. The flashlight needs at least a 5℃ temperature difference between the holder"s body and the environment around to produce light." A video of Ann explaining how she creatcd the flashlight has been watched more than 1.4 million times on the Internet. Though Ann was successful, she has not made a decision about her career path. Ann hopes that she can find a way to join her love of film and science together. The four winners were chosen from 15 final competitors from eight countries. The competition attracted thousands of students in 120 countries.
小题1:In which part of a newspaper can we probably read this passage?A.Travel. | B.Culture. | C.Technology. | D.Advertisement. | 小题2: The first paragraph is written to be a(n) ________.A.introduction | B.warning | C.argument | D.discussion | 小题3:Paragraph 6 mainly tells us ________.A.what Ann saw in the Philippines | B.why Ann invented Hollow Flashlight | C.how Ann"s family encouraged her interest | D.what prize Ann got for Hollow Flashlight | 小题4:According to the passage, we learn ________.A.easy to win the international science competition | B.Hollow Flashlight is safe, noiseless and can save energy | C.Ann has made a decision to be a scientist in the future | D.few people are interested in how Ann created the flashlight |
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