4. Though (it is) more expensive, organic food becomes more and more popular.尽管价格贵, 但有机食物变得越来越受人们欢迎。 5. Food grown organically is tasty and nutritious.有机种植的食物营养可口。

　　6. Agricultural scientists try to search for a way to increase rice harvests without expanding the area of the fields.农业科学家们尝试寻求在不增加土地面积的基础上达到增收稻谷的途径。 7. The increased harvests mean that 22% of the world’s people are fed from just 7% of the farmland in China.粮食产量的增加意味着中国仅仅7%的耕地养活了世界上22%的人口。

　　8. Using hybrid rice, farmers are producing harvests twice as large as before.用杂交水稻种子, 农民们种出的粮食比以前多了一倍。 9. Chemical fertilizers damage the land by killing the helpful bacteria and pets as well as

　　the harmful ones.化肥在杀死病菌和害虫的同时也会杀死有益的细菌和昆虫。 10. These many different organic farming methods have the same goal： to grow good food and avoid damaging the environment or people’s help. 这些不同的有机耕作的方法有着同样的目标：种植好的粮食, 避免损害环境或者人们的健康。 语篇模块

　　While I traveled to Australia, the agriculture there impressed me a lot.

　　Firstly, agriculture in Australia uses lots of modern technologies. For example, they use computer to control the modern agricultural machines. Furthermore, they use satellite to manage the farm work.

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