文档介绍：Free talk
Do you think that we have a beautiful world now?
How many kinds of pollution do you know?
air pollution
industrial pollution
smog = smoke + fog
water pollution
environment pollution
noise pollution
How can we save Earth?
Words study
1 author: writer
Dickens is my favorite author.
2 consumer: person who buys goods or use services n. 消费者
Consumers are encouraged to complain about faulty goods.
3 topic: subject ,标题
a topic of conversation
4 pollute: make sth. dirty or impure
This river is polluted with chemical waste from factories.
5 mainly: chiefly, primarily.
The people in the streets were mainly tourists.
6 burn: be on fire
The house burned for hours before the blaze was put out.
7 danger: risk n. 危险
There’s a lot of danger in rock climbing.
8 vital (be vital to/for) : essential (be vital to/for) ，极为重要的
Water is vital for our life.
9 massive : very large
a massive monument\rock
10 affect: have an effect on
The change in climate may affect our health.
11 respond (to\ sth.): answer v 回应，回答
She asked where he’d been, but he didn’t respond
12 inform (sb. of\about sth.): tell v 通知，告知
Did you inform him of the time of the meeting?
13 grateful (be grateful to sb. for sth.\that): thankful
感激的，表示感谢的
I’m grateful to you for your help.