lesson3 Clean Machines

学案

要点一览：

主要词汇 petrol, gas, solar, racer, sunlight, kindergarten, chapter, impression, reliable, golf, appreciate, essay, shopping 主要短语 so far, take place, all the time, find out 主要语法 现在完成时和现在完成进行时 要点详解：

1. so far 到目前为止，迄今为止

What do you think of the show so far?

到目前为止你觉得这场演出怎么样？

Detective are so far at a loss to explain the reason for his death.

至今侦探对他的死因仍茫然不解。

2. take place 发生，举行

A concert will soon take place.

即将举行一场音乐会。

Great changes have taken place since 1976.

1976以来发生了巨大的变化。

拓展：

take down 写下，拿下来

take up 占，占地方

take turns 轮流

take to 喜欢，染上

take on 接受，雇佣

take off 起飞，脱掉