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GM food:hope or danger

GM food:hope or danger. 1.How can a plant or an animal be genetically modified? 2.Is there any GM meat being sold? 3how can GM plants affect the environment? 4.what’s the attitude towards GM food?. 1 .在基因研究里取得很多进步————— 2 .打开，开辟———————————— 3 对。。。感到兴奋—————————— 4 转基因食物————————————

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GM food:hope or danger

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  1. GM food:hope or danger

  2. 1.How can a plant or an animal be genetically modified? 2.Is there any GM meat being sold? 3how can GM plants affect the environment? 4.what’s the attitude towards GM food?

  3. 1 .在基因研究里取得很多进步————— • 2 .打开，开辟———————————— • 3 对。。。感到兴奋—————————— • 4 转基因食物———————————— • 5 被插入—————————— • 6 实质上，性质上——————————by nature____________ • 7 保护。。。免于。。。—————————— • 8 提出许多关于。。。的问题———————— • 9 局限于———————————— • 10而不是———————— • 11至于———————————(其他呢____________________) • 12食物链—————————————— • 13对。。。有影响——————————— • 14批准———————————— • 15对。。。谨慎——————————————

  4. Good sentences: • 1.With this progress, doors have been opened up to technologies that never existed before. • 2.while many people are excited about these new technologies, these same technologies frighten others • 3.Nowhere is this truer than with genetically modified food. • 4.This technology has been used to produce plants which are better able to defend themselves against pests and disease. • 5.research has been limited to increasing production profits, rather than making sure that GM foods are safe.

  5. language points • 一 • while many people are excited about these new technologies,these same technologies frighten others. • While there has been research in GM animals such as pigs,no GM food is being sold out. • while:做连词时有 • （1）当。。。时候（2）虽然，尽管 • （3）而，然而，表示对比（4）只要 • 1I have already had two childen while my sister still remains________(unmarry). • 2. While_____( live) in Paris,I took up two part-time jobs ______(earn) more money. • 3. While I respect you ,i don't agree with you ______(介词) that matter. • 4. While we have time ______(剩下的),we still have a chance _______(win) the game

  6. 二.Nowhere is this truer than with genetically modified food. 英语中否定词或词组放在句首句子用部分倒装，常见的这些否定词或词组有seldom, hardly, never, little, no sooner ...than,hardly ...when,not until,in no way ,not only ....but also 等 例句：never has Tom been to beijing. In no way can this problem be solved . 练习 1.little_______________(学生们不太了解)the poet ________(mention)in the artl 2. Not only _____________(他不仅参加了那个会议) but also he raised several problems__________(concern)the topic. 4. No sooner _________Tom let go of the balloon than it flew away.

  7. 三比较级用于否定句中表示最高级 • 1.---shall we have a rest? • ----i can't agree more.after working so long a time,i nearly get burnt out • 2.----what do you think of the film ? • i have never seen a better one, it's too exciting. • 练习： • 1.how beautifully she sings! I have never heard a _____voice. • A good B better C bad Dworse • 2.Never have he seen a poorer place where children receive poor education. • ________________________________________（翻译）

  8. research has been limited to increasing production profits,rather than making sure that GMfoods are safe. • rather than而不是 • rather than连接两个平行并列结构: • 1.i prefer to go there in summer rather than in winter. • 2.he likes dancing rather than singing. • 常见结构： • prefer to doA rather than do B • would rather do A than doB • 类似结构：or rahter(更确切的说),other than (除了),more than(不仅仅是，多于，非常),

  9. 练习： • 1.I would rather stay at home _____(do)nothing than ____(go)out to skate. • 2.You can't reach the island ______(locate)in the middle of the lake _______by boat. • 3Mr li is _________a teacher to us,he is also our friend. • 4It's Jack,_________his sisters ,is to blame. • 5The baby was _______excited to see his mother. • 6.Tom is in hospital now. _______,he can't attend the lecture ____________(hold) this afternoon.

  10. Lucy is a middle school student. ______(尽管） she is a top student, she is more than modest(谦虚的). • ________(devote) to studying, Lucy has little time to do other things. however, one day she decided to drop in on her grandma who was seriously ill. It______( be) rainy, Lucy went there by bus_______ (而不是) on foot. what terrible weather! Never had she seen a heavier rain! The bus went on at a slow speed, ______(make) the short distance a long tiring journey. Finally ,she arrived. _______(_See) her grandma lying in bed ,Lucy just couldn’t help crying. The old lady, speaking in a_________( tremble) voice, told Lucy not to and said that she would recover soon. hearing this ,Lucy stopped crying and went to the kitchen _______( cook) her grandma a meal. • while eating ,they had a good conversation ,which made the old lady feel better. with little time________( leave), Lucy had to go back to school._______( Fill) with anxiety , Lucy left, _______(determine) to spare more time to look after her grandma.

  11. Thank you

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