牛津譯林版高中英語必修五unit3scienceandnature第4課時(shí)教案-免費(fèi)閱讀
【正文】 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，不要簡單翻譯。作為對??的回報(bào) (= in return for) considerate 。s still a good car. A. taken B. having taken C. taking D. to take D) 7. You surely can39。 prevent from B. Considering。s responsibility to find answers that are good for everyone, and everything. Project 2: GM food: hope or danger? In recent years, there has been great progress in the study of geics. With this progress, doors have been opened up to technologies that never existed before. While many people are excited about these n ew technologies, these same technologies frighten others. Nowhere is this truer than with geically modified (GM) food. There are two ways in which a plant or an animal can be geically modified. First, new material can be inserted into its DNA to give the plant or animal qualities which it would never have in nature. Second, material can be taken from the DNA of a plant or an animal in order to remove qualities which are not desired. One aim of GM research is to produce food which will make us healthier. So far, this technology has been used to produce plants which are better able to defend themselves against pests and disease. Supporters of GM food argue that GM plants are healthier and have larger harvests. While there has been research in GM animals such as pigs, no GM meat is being sold at present. Many questions have been raised about GM food. No one really knows whether it is safe for animals or humans to eat. Scientists admit that more tests should be done on GM food. Research has been limited to increasing production profits, rather than making sure that GM foods are safe. GM food could therefore be dangerous to eat. There is also a question as to whether GM plants are safe for the environment. Since GM crops are planted outside, they are part of the food chain— insects and other animals eat them or use their products, and these insects and animals will be eaten by yet other animals. No one knows what effects the GM material might have on the food chain. Since no one really knows whether GM food is safe, many countries have hesitated to give permission for the production of GM foods, 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 知識探究： I’m considering
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