Directions: There are 4 passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A),B) ,C) and D). You should decide on the best choice and mark the corresponding letter on the Answer Sheet with a single...
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Atmospheric rivers (AR) are vital to our planet’s weather patterns. Research indicates that these rivers in the sky cause nearly all of the world’s precipitation. Efforts in the past few years have helped scientists better understand AR behavior, enabling more accurate weather forecasts. The st...
What are the main sources (来源) of green energy? Water Power Water power uses moving water in rivers and dams. Moving water has energy. Water power makes 16.6% of the electricity we use. Wind Power Is wind power new? No, it isn't. People used wind power many years ago. Wind power...
(E)What are the main sources(来源) of green energy?( B )1. Water power uses moving water in rivers and dams(堤坝).Moving water has energy. Water power makes 16.6% of the elec tricity we use.( D )2. Is wind power new? No, it isn't. People used wind pow-er many years ago....
Rivers and lakes must be protected because water is the source of life. To protect our homeland is to protect ourselves. 二、单元教学目标 单元教学目标 语篇 本单元学习后,学生能够: 1.谈论日常生活中常见的环境问题,举例阐释个人及家庭生活的日常行为对环保的重要意义, 交流个人可以参与的环保行动。
But it’s neither biodegradable nor can it be recycled economically, and it’s often found in our rivers and oceans. While cushioning just as well as styrofoam, biodegradable air peanuts made from natural materials are both more sustainable and cheaper. Harts of Stur, a...
How are you doing? In your last letter, you asked me about being a guest to a Chinese friend’s home. Now, I am writing to inform you of some relevant details. To begin with, according to our tradition, you are supposed...
“When I was your age,” a father said to his sixteen-year-old son one day, “I was at the top of my class every year. And I 2 what I wanted to do when I left school. I had goals(目标). You are always at the bottom(最后)of your class 3 you have no goals.” The man’...
Litigation surrounding the intent of the Clean Water Act has forced the EPA and states to implement programs which identify all waterbodies not meeting their designated uses and make plans to reduce pollutants to levels where the waters would no longer be impaired. The program through which this ...