必修四 话题2 农业技术.doc

文档介绍：必修四话题2农业技术 话题狂背
词汇
statistic
struggle
decade
super
output
crop
hunger
circulate
disturbing
battle
expand
freedom
therefore
equip
grain
export
personality
nationality __ confuse
occupation
regret
chemical
organic
production
bacteria
pest
nutrition
mineral
discovery
focus
soil
reduce
root
skim
underline
summary
comment
industrial
短语
为...而奋斗 struggle for less developed countries
increase the rice output expand the area of the fields
，由于 thanks to ...满意 be satisfied with
...的希望 with the hope of agricultural pioneer
9....的极大需要 the great need for an ear of rice
逐渐增强，开发build叩 to
focus on ...免受 keep...free from/of
] every few years put down deep roots
防止水土流失 prevent wind or water from carrying away the soil
make a difference 有作用 it possible to do 使--成为可能
fertilizer 化肥 for a way 寻找一种方法
经典句型
With chemical fertilizers,the crop grows very contains little nutrition.
用化肥的农作物长得快，但没足够的营养。
Though (it is) more exuensiveerganic food becomes more and more popular.
尽管价格贵，但有机食物变得越来越受欢迎。
Agricultural scientists try to search for a way to increase rice harvests without expanding the area of the 。
Using hybrid rice,farmers are producing twice as large as before.
用杂交水稻种子