译林牛津版必修四 Unit3 Tomorrow’s World - Welcome to the unit课件 （23张）
What developments in science and technology would you like to see happen in the future?
see sth. happen
常见的感官动词有:
see, watch, observe, notice, look at, hear, listen to, smell, taste, feel等。
I saw him work in the garden yesterday.
☆昨天我看见他在花园里干活了。
I saw him working in the garden yesterday.
☆昨天我见他正在花园里干活。
I saw the man knocked down by the red car.
☆我看见那个人被那辆红色的小汽车撞倒了。
注意:当感官动词用于被动语态时，动词不定式符号to不可以省略。He was seen to work in the garden.