题型：阅读选择 题类：常考题 难易度：普通
吉林省长春市双阳区2019-2020学年八年级上学期英语期中学科素质测试试卷（含完整音频）
I'm Bob. I work at night from Monday to Thursday. So in the daytime (白天), I often sleep for at least 7 hours. Then I get up, have some food and watch TV. I usually watch TV for more than two hours every day. At 7:00 p.m., I go to work by bike.
But on weekends, my life is different. I usually sleep at night and do different activities in the daytime. For example, last weekend was quite full for me. On Saturday morning, I went to learn dance. I have dance lessons once a week. In the afternoon, I went to play basketball with my friends. We played for three hours and felt excited. I thought it was good for my health. On Sunday morning, I drove to the dentist for teeth cleaning. In the afternoon, I went to the movies with my friend, Tom. I thought the movie was interesting, but Tom thought it was difficult to understand (理解).
When we look at a picture of Earth from space, there are areas of green, blue, and white. Most people will recognize(辨认) that the green island, the blue is water, and the white is clouds. Taken as a whole, Earth is mainly blue. That is because of the amount(数量) of water it has that covers the surface. So, how much of Earth is water? About 71% of Earth's surface is covered in water. Of that 71%, the oceans hold about 96.5% of the water. The water found in oceans is all salt water. The remaining 3.5%of the water is fresh water, which can be found in lakes, rivers, glaciers(冰川), and in the ground. Freshwater is what people use for farming, raising animals, drinking, and daily activities such as taking showers and washing clothes or dishes. Does the amount of water stay the same? For the most part, yes. Water on Earth is part of a closed system. That is, water is always moving and changing forms between ice, liquid, and gas. The form of the water changes all the time, but the total amount of water on Earth remains the same. If Earth is not necessarily running out of water, why are people worried? Why do we need to think about saving water? First, humans can only use fresh water, which is only about 3.5% of all of Earth's water. Second, of this 3.5%, only about 1% is available for human use. Most fresh water is found in glaciers far from where anyone lives. Third, the amount of water that is useful for humans is being used faster than it can be cleaned and put back into the environment. Now, knowing the facts about water, it is our job to make sure we use Earth's water in a good way. |
Notice Board
LOST I lost my green pencil box in the school library. A red pen, a blue eraser and a white ruler are in it. If you find it, please call Mike at 236-7751. Thanks. | FOUND Is this your basketball? I find it on the playground(操场). It looks new. You can call me at 39386-0816. John |
LOST: My ID Card My name is Jim. I'm in Class Six, Grade Seven. If you find it, please call 235-1003. Or you can give it to me in the classroom. Thank you. | FOUND Is that your English book? It is in the lost and found box. Please e-mail Billy at billymiller@163. com. |
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