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牛津版上海版八年级下册 Unit 1 Trees Reading课件

  • 课件名称:牛津版上海版八年级下册 Unit 1 Trees Reading课件
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  • 更新时间:2018-5-3 7:13:51
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    牛津版上海版八年级下册 Unit 1 Trees Reading课件
    communicate v. talk or write to somebody; give or receive information Young people like to communicate by e-mail and telephone. We learn a foreign language in order to better communicate with others. one another each other You have to help one another to win the game. Our teacher tells us not to talk to one another in class. pron. burn v. harm or destroy somebody or something with fire or heat Ten people were burnt to death in the hotel fire. The hill fire has burnt all the trees. replace v. take the place of somebody or something Can anything replace a mother’s love and care? Electric lights have replaced candles. hardly adv. almost not I could hardly understand what he said. It was so dark that I could hardly see. destroy v. break something completely so that you cannot use it again or so that it is gone The fire destroyed all my books. The heavy rain destroyed all hope of a picnic. average为核心词。 * item为核心词。 * fact、scientist为核心词,点击后可进入My minidictionary。 * fighter、product和natural为核心词,air conditioner为拓展词。 * interested、be interested in、notebook、suppose、breathe和pure为核心词。 * gas、release、produce、alive、as well as为核心词,oxygen与hectare为拓展词。 * warn、protect、chemical、join、communicate、one another为核心词,nasty为拓展词。 * burn、replace、hardly、destroy为核心词。 * C Scan the interview and check if you have gotthe correct choices about the following statements. The pollution fighters are probably scientists. T / F Many useful products come from trees. T / F Trees are natural air conditioners. T / F Trees can pass information to one another. T / F Judy is collecting some facts for a class project on pollution. She is interviewing Doctor Ray, a scientist, about trees. JUDY Why are you so interested in trees,Doctor Ray? DR RAYThey’re the biggest and oldest living things on the Earth, Judy. JUDYYes, but what good are trees? They make streets more beautiful and less noisy, but what else can they do? DR RAYWell, the wood in your pencil,the rubber on the end of yourpencil, the paper in yournotebook and the fruit in yourbowl all come from trees!And, I suppose you also enjoybreathing pure, cool air. JUDYOf course. DR RAYThen you must thank trees for that too.They take harmful gases from the air, and release oxygen back into the air. How many people are there in your class, Judy? JUDYForty-six. DR RAYWell, one and a half hectares of trees could produce enough oxygen to keep your whole class alive and healthy for a whole year. JUDYThat’s wonderful! DR RAYTrees cool the air as well asclean it. They are natural airconditioners. Three trees cando the job of 15 air conditionersrunning almost all day. JUDYYou certainly know a lot about trees,Doctor Ray. DR RAYThank you, Judy, but I don’t, really. Scientists are only now beginning to understand them. For example, when insects attack a tree, it can warn its neighbours. The trees can then protect themselves by producing a chemical that makes their leaves taste nasty. And some trees can join theirroots together underground,and pass food and water toeach other. Trees arecommunicating withone another, but wedon’t know how. JUDYAre trees in danger? DR RAYIn great danger. We cut down and burn millions every year, but we replace hardly any of them. We are destroying our best fighters against pollution. Workbook 8B, page 1. average adj. around a usual or ordinary level or standard The average age of the boys in this grade is ten. He drives at an average speed of 100 miles per hour. item n. a single article or object The police examined several items of clothing. Do you know if they like this new item? fact n. something that you know has happened or is true It is a fact that smoking is a danger to health. Before we make detailed plans, we need some more facts and figures. scientist n. a person who studies science or works with science That boy’s ambition is to be a scientist. When can scientists conquer cancer? fighter n. a person who fights The man is a real fighter. He never gives up. As soon as I walked into the living room, I saw a picture of fighters on the wall. product n. something that people make or grow to sell My bike is a home product. Coffee is Brazil’s main product. natural adj. produced by/concerned with nature Men often have to face natural disasters. It is natural that such a hard-working student should pass the exam. air conditioner n. a piece of electric equip-ment that makes the air inside a building, room, or vehicle colder or warmer This new style of air conditioner is noiseless. An Air conditioner makes us feel more comfortable in summer and winter. interested adj. wanting to know more about something or somebody I tried to tell him about it, but he was not interested at all. (be) interested in Why are you so interested in football? notebook n. a small book where you write things that you want to remember I’ve written down all the new words I don’t know in the notebook. We don’t know where he put his notebook.
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