一、重点词汇与短语
1. observe
（1）. observe后可接名词作宾语, 也可接that从句, 它还是个感官动词, 可以说observe sb do/doing sth, 被动结构为be observed to do. 例如:
As a child, he liked to observe the behaviour of insects.
他小时候喜欢观察昆虫的习性. (接名词)
I spent some time observing their customs.
我花了一些时间观察它们的生活习惯. (接名词)
