________ focus 焦点对准的,清晰的
________ of focus 焦点未对准的;模糊不清的
【答案】 1.rid;inform;warn;remind;rob 2.build;put;set;end;give 3.on;in;out
Ⅲ.重点句式
1.________,what did you do to grow them?________,what kind of plant would you like to try growing?
如果种过的话,你是如何种植它们的?如果没有种过的话,你想要尝试种什么植物?
2.This special strain of rice ________________ 20% more of the crop in the same fields.
这种特殊的稻种使得同样的田地多收获20%的产量。
3.Using his hybrid rice,farmers are producing harvests ________________ before.
用他的杂交水稻种子,农民们种出的粮食比以前多了一倍。
4.Crops such as peas or soybeans put important minerals back into the soil,______________ such as wheat or corn that need rich and fertile soil.
像豌豆或大豆这样的农作物将重要的矿物质带回土壤,从而使之适宜于要求土壤肥沃的农作物,比如小麦或玉米。
【答案】 1.If so;If not 2.makes it possible to produce 3.twice as large as 4.making it ready for crops
Ⅳ.回顾话题
用本单元词汇和句式完成下列写作任务
他是一位农业方面的科学家,使十亿多人免于饥饿。他很小的