13. Deeds are fruits, words are but leaves.( but=only “行为是结果,，好话是装点。”/“说得好不如做得好。”)

12. But if you go against nature and do things at the wrong time of year, you will have to do more work and the results will not be so good. (划线处意思是”事倍功半”)

11. If you sow seeds and grow young plants in the fields at the correct time of the year, your work will be less and the results will be better. (划线处意思是”事半功倍”)

10. He spent his time on research into agriculture.

9. Today many vegetables are not grown in gardens but in greenhouses where they are protected from the wind, rain and insects.

8. Not only is food production important but also taking care of the environment.(留意倒装)

7. It was from the early 1990s that scientists started to develop new techniques to increase agricultural production without harming the environment.

6. You want to use the land in the best way possible and do what is best for everybody in the village. (possible与最高级adj连用, 强调”尽可能最…” e.g. He arrived at the worst possible time. )

5. To make as much use of the land as possible, two or more crops are planted each year where possible.

4. As far as I can see(=In my opinion), the best thing would be to compare this one with that.