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1、GM food : hope or danger?,Lets get started from those pictures.,What do you know about genetically modified food?,The first genetically modified plant : tobacco,烟草,In the US and Canada, however, over 70 percent of the foods in grocery stores in the U.S. and Canada contain genetically engineered ingr
2、edients（原料） mostly in the form of corn and soy products.,Predicting,GM food,hope,danger,for,against,What are peoples different attitudes towards the study of genetics? What are the two ways that an animal and a plant can be genetically modified?,Read and answer the questions.,Many people are excited
3、, while others are frightened.,One way is to insert new material into a plants or an animals DNA to give it new qualities. The other way is to take material out of a plants or an animals DNA to remove unwanted qualities.,3. What is the one aim of GM research talked about in the article? 4. What has
4、GM technology been done to plants?,The aim is to produce food that can make people healthier.,It has been used to produce plants that are better able to defend themselves against pests and disease. It can also produce plants that have larger harvests.,Examples of GM food,maize,Maize genetically modi
5、fied to Bt protein,Bt protein kills insect,5. What are the problems about GM food and GM plants?,Two main problems are talked about in this article. One is whether it is safe or dangerous to eat, the other is whether it is safe or dangerous to the environment.,6. What is many countries attitude towa
6、rds GM FOOD? Why do they hold such attitude?,They have hesitated to permit the production of GM food, because they are not sure whether GM food is safe.,GM food in world,Can you translate the following into Chinese？,1. Nowhere is this truer than with genetically modified food？,转基因食品就是最好的例子。,2. Resea
7、rch has been limited to increasing production profits, rather than making sure that GM foods are safe.,目前的研究只限于增加生产利润，而不是确保转基因食品的安全。,3. With this progress, doors have been opened up to technologies （that never existed before）.,有了这种进步，通向基因领域技术的大门已经敞开了，这在以前是从来没有的事。,Language Points,1.While many people
8、are excited about these new technologies, these same technologies frighten others.,frighten vt. 使惊吓；使惊恐,It is said that Chinese people _ firecrackers on New Years eve to frighten _ a monster named nian.,let off,away/off,Yesterday, I met a _ scene. A robber frightened me into _ (give) him all the mon
9、ey. I still feel _ now.,frightening,giving,frightened,I was frightened _ his knife. So I was frightened _ give him my wallet.,of,to,I will never walk home alone. 我昨天晚上吓死了。 I was frightened to death yesterday.,2. Nowhere is this truer than with genetically modified (GM) food.,这是一个倒装句否定副词nowhere置于句首时，
10、构成了倒装句。当否定副词置于句首时，句子需要部分倒装。常见的副词有：not、never、seldom、hardly、scarcely, rarely等。,I seldom have time to go to the cinema now. Seldom do I have time to go to the cinema now.,Wed say that never before_ so moving a film as After Shock. Awe had seen Bhad we seen Cwe have seen Dhave we seen,D,Hardlywhen Hardl
11、y _ (I/get) to the bus stop when the bus _ (start).,过去完成时,一般过去时,had I got,started,No soonerthan No sooner _(he/arrive) than he _ (go) away again.,过去完成时,一般过去时,had he arrived,went,3. Research has been limited to increasing production profits, rather than making sure that GM food are safe.,He made a pr
12、ofit of fifty thousand US dollars on his house.,gross profit 毛利润 net profit 净利润,Telling lies wont profit you. We tried to profit by/from our mistakes. It will profit you nothing to do that.,profit 还可以作动词，意思是“得益, 获利；对有好处”,4. many countries have hesitated to give permission for the production of GM food, as they would rather be cautious with this new technology.,You were wrong to take the car _ _ (未经允许). I hate to ask permission for everything I do.,without,permission,
