2 . 当回顾我童年时，许多勤劳的农民沿着小溪边种水稻的画面突然浮现出来。

When I was ________ ________ ________ my childhood, the picture of many hard-working farmers ________ ________ along the stream suddenly came to mind.

3 . 随着夜色渐深，他们越来越担忧。
As the evening wore on, ________________. (形容词)

4 . as引导时间状语从句
________ (随着我的速度越来越快), the walls of the laboratory fell away, and I was left in the open air.

6 . They are wet all over and their sweat is frequently falling into the soil. The crops grow there.（用with的复合结构和where 引导的定语从句改写）

7 . 近年来，贸易增长迅猛，未来几年也将继续增长。
Trading ______ ______ greatly in recent years, and will ______ ______ ______ so in years to come.

8 . ①We should treasure the food.
②The food was grown by the farmers.（用过去分词作定语的用法合并两个句子）
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