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初中英語解題思路—科普環(huán)保類(閱讀理解)-免費(fèi)閱讀

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【正文】 D.harmful to forests5.The passage is mainly about __________. A.the examples of protecting forestsB.the balance between animals and plantsC.the ways of plants fighting against enemies (10分)36.What happens to the light from the stars we see when the air in the earth’s atmosphere is moving? A. It looks even brighter.B. It looks as if it is bent.C. It looks as if it is moving.D. It looks like drops of rain.37.Scintillation also happens on      according to the passage. A. rainy days B. shiny daysC. cloudy days D. windy days38.What can you see when you drop a rock into the water? A. The rock gets broken.B. The rock bees unclear.C. The water bees much polluted.D. The water does not move anymore.39.The underlined word “observe” means “    ”.A. watch B. listen C. draw D. explain40.Why is scintillation a problem for astronomers? A. The stars never stay still.B. It makes the stars too dark to see.C. It makes astronomers feel too hot to work.D. Astronomers cannot observe the stars clearly.Imagine the situation. You are driving along a desert or on a mountain. You have no idea where you are. You passed the last house two hours ago. Then your car breaks down. It is night and it is cold. You have no mobile phone. What do you do? Well, next time take a GPS with you. This invention may be able to help you. It is a device(裝置) which uses satellites (衛(wèi)星) to find the user’s position(位置). It can find your position to within 20 metres. A GPS cannot start your car, but at least you will know where you are.GPS, which means Global Positioning System, is a small radio receiver. It looks like a mobile phone. You can hold it in your hand, or put in your pocket. It is sometimes put into a watch or a telephone. We also find GPS devices in cars, planes, or boats. Some of these devices have electronic maps, so you know where you are. For example, in a city they can tell you the name of the street.There are three parts to the Global Positioning System. The first part is the receiver. You can hold it in your hand, or have it fixed into your car, plane, etc. The second part is a group of satellites orbiting the Earth. The receiver contacts at least four of the satellites and calculates(計(jì)算) its position. The third part of the system is a network of ground stations. They are all over the world. They control the satellites and make sure they are working well.Some people think that in the future the GPS will be as mon as the mobile. They are being cheaper and more and more accurate(精確的). There are also new uses for the GPS. Perhaps they will bee like watches. Everyone will have one and you will never be lost again.41.According to the passage, with the help of the GPS, people __________.’t be lost in a new city’t find their way in different countries learn about the culture of an unknown place spend the least time getting to another place42.We can learn from the passage that ____________. are three parts to the GPS GPS can’t be put into a watch GPS can help you start your car GPS are being more and more expensive43.The underlined word “They” in paragraph 3 means “____________”.A. Receivers B. GPS devices C. Satellites D. Ground stations44.The passage is mainly about _______________.A. the history of the GPS B. the introduction of the GPSC. the shape of the GPS D. the three parts of the GPS45.What can we infer(推斷) from the passage? GPS devices have electronic maps. in many countries will use the GPS for free. receiver of the GPS contacts at least five of the satellites. GPS will bee more and more mon in everyday life.Many of us don’t pay much attention to the importance of eye care. It is said if you take care of your body, then you can surely 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, genes(基因)and aging(老化). Televisions, puters and reading are also the causes of having poor eyesight. If you happen to work in front of the puter, it is best to take a break every once in a while. Something dirty can cause redness and they will make you feel unfortable. 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 things. For example, sunglasses are not just for 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 A, C and E are good for eyes. Try to eat food groups that have these vitamins. And you should do eye exercise protects your eyesight, too. If a person exercises regularly (定期的) 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. All in all, eye care is very important, no matter how old a person is.46.____ 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 time47.All the following causes can lead to bad eyesight except______.A. aging B. height C. reading D. puters48.What should you do if you have to work in front of the puter?A. Eat healthy foods. B. Clean the eye by using cold waterC. Wear a pair of sunglasses D. Have a rest after working for a while49.What do the underlined words “UV rays” mean?A 沙塵 B. 閃電 C. 紫外線 D. 超聲波50.Which is the best title of the passage?A. Ways of Eye Care B. Ways of Eye ExercisesC. Ways of Being Happy D. Ways if Being Healthy閱讀與回答問題(本題共5小題,每小題2分,滿分l0分) If the temperature rises by 5 degrees tomorrow, you will probably take off
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