转基因食品优缺点英文PPT课件
- 格式:ppt
- 大小:2.05 MB
- 文档页数:10
幻灯片12幻灯片13Useful words and expressions满足人们的需求 meet people's need提高…产量 increase the production of...营养含量 nutrition content看待 recognize农药 pesticide化肥 chemical fertilizers粮食问题 the food problem影响其他植物 affect other plants改变基因 change the gene转基因技术 transgene technology好好利用 make good use of幻灯片15二、套语背诵1.表示赞成及理由的句式。
(1)Some people think … Besides, they consider that… What's more,…(2) Some of them approve of it because …幻灯片16一些人表示赞成,他们认为转基因食物可以满足他们的需求。
Some people think the GM food can meet their need.并且,他们认为提高粮食产量可以解决人口众多的粮食问题。
Besides, they consider that increasing the production of food can solve the food problem of a large population.还有,转基因食物使用较少的农药。
这与普通农作物比起来更安全。
What's more, the GM crops use less pesticide. It is safer than normal crops.幻灯片172.表示反对及理由的句式。
(1)However, others think ...(2)Other people are against the idea for the reason that…。