Module 4 The natural elements单元教案

module 4 the natural elements
unit 1 electricity today
主要内容：
（注：所有单词可参照目录中的vocabu lary及后面的 word list.）
i.常用词组：
on a dark night, give him a fright, use the lightning to get electricity, see pylons carrying wires, electrical appliances, a washing mac hine , a vacuum cleaner, an air conditioner, the importance of electricity, electric kettles, link up…with…, be known (as), make sth + adj.( make traveling comfortable), run through tunnels, run over a bridge, run on the ground, be different from, be made of, as well,

i i.有用句型：
1.what else does it give power for ?
2.televisions make our lives more enjoyable.
3.computers help us work more efficiently.
4.air conditioners make us feel more comfortable.
5.it is because…

iii .语言难点：
1.computers are used to give information to the train drivers. 本单元中出现了几处被动语态，尽可