牛津譯林版高中英語必修五unit 3《science and nature》（第4課時(shí)）教案-預(yù)覽頁
【正文】 s, as they would rather be cautious with this new technology. Step 1: Read and learn ◆ Listen to the text and grasp the general spirit of the text Language focus: ◆ 1. consider vt. 考慮；認(rèn)為考慮；認(rèn)為 知識(shí)探究： I’m considering changing my job. 我在考慮還份工作。 He was generally considered to have invented the first puter. 人們普遍認(rèn)為是他發(fā)明了第一臺(tái)計(jì)算機(jī)。 prevent from B. Considering。t made president of the board of directors, ________ not very popular with all its members. A. to be considered B. being considered C. considering D. having considered 解析：句意：他未被任命為董事會(huì)主席，因?yàn)槿藗冋J(rèn)為他不太受成員歡迎。s still a good car. A. taken B. having taken C. taking D. to take D) 7. You surely can39。 gift 。作為對??的回報(bào) (= in return for) considerate 。s US$14 millionayear papaya (木瓜 )industry was destroyed by a virus five years ago, work began on creating geically engineered (轉(zhuǎn)基因的 ) trees. Researchers successfully introduced seeds that were designed to resist the virus. Since then, more and more people have been testing geically engineered trees. Some researchers put special bacteria into trees to help them grow faster and produce better wood. Others are trying to create trees that can clean polluted soil. Meanwhile fruit farmers are looking for trees that are strong enough to resist worms, and paper panies want trees that produce more wood and therefore more paper. The Pentagon (五角大樓，美國國防部所在地 ) even gave the researchers US$500,000 this year after they developed a pine tree that changes its colours if it senses a chemical attack. So far, the poplar, eucalyptus (楊樹與桉樹 ), apple and coffee trees are among those being engineered. All these can be done today because we have a better understanding of tree genomes (基因組 ). However, some people fear that the geically engineered trees will cause dangerous results. They are worried that the new trees will breed with natural species and change the balance of the forest environment. “It could be destructive,” said Jim Diamond, an environmentalist. “Trees are what is left o f our natural environment and home to many endangered species.” But researchers insist that science could give nature a fighting chance against both natural and manmade dangers. They hope to answer the critics by stopping the new trees from breeding, so their effect on the environment can be controlled. C) 1. Which kind of tree is not the ones that scientists are planting in the US? A. Trees that worms can39。 原因 1．互聯(lián)網(wǎng)及電視節(jié)目中不良信息的影響 2．家長和老師過分關(guān)注學(xué)生成 績，忽視對學(xué)生行為習(xí)慣的培養(yǎng) 建議 （提出至少兩點(diǎn)建議） ? 注意： 1．對所給要點(diǎn)逐一陳述，適當(dāng)發(fā)揮，不要簡
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