【正文】 來才停止了哭喊。 ____________________________it will rain。人們應(yīng)該盡可能少地燃燒煤和石油。在過去的一個世紀中，地球表面的溫度大幅度上升。我們看到有時垃圾被扔進提供飲用水的溪流，森林因人們的疏忽而起火。 能力目標：培養(yǎng)學(xué)生的綜合運用知識的能力。 5. What can we do to save our environments? 我們應(yīng)該做些什么來拯救我們的環(huán)境？ 五、重點知識講解 Let’s Protect The Environment 1. Global warming is the most serious problem we face in the 21st century. Most scientists have been saying that human activity, not natural factors, is the primary cause of the warming. Many people, both in China and abroad have realized that while we are developing the world, we are also destroying the land on which we are living. We see garbage sometimes thrown into streams that supply drinking water. We find forest fires caused by careless people. Beaches and city streets are littered with rubbish. 譯文： 全球變暖是我們在 21 世紀面臨的最嚴重的問題。 1) pour into 涌入 2) more and more 越來越多 3) prevent heat from escaping 阻止散熱 3. Light from the sun heats the earth’s atmosphere, oceans and land, making life on the earth possible. At the same time, a certain amount of heat goes into outer space so that the temperature of the earth is balanced. Nowadays less heat can escape because of the increasing levels of carbon dioxide. The surface temperature of the earth increased greatly over the last century. The warming increases with time, and could have many side effects. 譯文： 太陽的射線給地球表面，海洋和陸地提供了熱量，使地球上的生命得以延伸。 5. What can we do to save our environments? First, we can plant more trees. Trees can take in carbon dioxide and then produce oxygen. Second, we have to find new power, coal and oil should be used as little as possible because these sources would produce a lot of gases. Instead, we should try to make use of solar energy, wind power, hydrogen and some new sources of energy. Third, we can start environmental groups to tell people the importance of protecting the earth. 譯文： 我們應(yīng)該做些什么來拯救我們的環(huán)境？首先，我們可以多 種樹。 【模擬試題】 （答題時間： 60 分鐘） 一、單項選擇 1. I like Chinatown. It’s ________ good place to do shopping. A. a B. an C. the D. / *2. Kate has lost her keys. She asks _________for help. A. I B. me C. my D. mine **3. My home is ________ from our school. So I never ride my bike to school. A. ten minute’s walk B. tenminutes walk C. ten minutes walk D. ten minutes’ walk *4. Yesterday was my friend Bruce’s birthday. He invited me ______ his birthday party. A. for B. at C. to D. on **5. Nearly two weeks passed _________ I received my father’s letter. A. before B. while C. until D. as soon as **6. We don’t have much homework now and our school bags are _____ they used to be. A. as heavy as B. not as heavy as C. as heavily as D. not as heavily as **7. — Must I finish the work today? — Yes, but you ________finish it now. A. must B. need C. need to D. don’t have to **8. Nancy enjoyed herself so much she visited her friends in Sydney last year. A. that B. which C. when D. where **9. There are so many kinds of MP3 in the shop. We can’t decide ________. A. what to buy B. to buy what C. which to buy D. to buy which **10. More than two _______ years ago, people knew little about the universe. A. thousands B. thousand C. thousand of D. thousands of *11. _______interesting book it is! I want to read it again. A. What an B. How an C. What D. How *12. He’s fed the dog and the cat, _________? A. doesn’t he B. isn’t he C. wasn’t he D. hasn’t he **13. Wait a minute! He will go with you as soon as he ________his work. A. will finish B. shall finish C. finishes D. finished **14. I _________ my homework last night when I heard a loud knock on the door. A. did B. was doing C. have done D. had done **15. — How often do you go to the old people’s house, Tom? — ________. A. Once a month B. In a month C. After a month D. For a month **16. Can those ____ at the back of the classroom hear me? A. seat B. sit C. seated