【单词】
factory [ˈfæktri] n.制造厂，工厂
pollute [pəˈlu:t] v.污染
recycle [ˌri:ˈsaɪkl] v.回收利用，再使用（废品）
waste [weɪst] n.废料，废弃物
enemy [ˈenəmi] n.敌人，仇人
crop [krɒp] n.庄稼，作物
kill [kɪl] v.杀死，弄死
oil [ɔɪl] n.石油
less [les] adj.较少的，较小的 n.较少数，较少量
hopeless [ˈhəʊpləs] adj.无望的
china [ˈtʃaɪnə] n.瓷，瓷器
divide [dɪˈvaɪd] v.分开
plastic [ˈplæstɪk] n.&adj.塑料（的）
policy [ˈpɒləsi] n.政策，方针
reuse [ˌri:ˈju:z] v.再次使用，重复利用
bottle [ˈbɒtl] n.瓶
throw away 扔掉；丢弃
repeat [rɪˈpi:t] v.重说，重新做
reduce [rɪˈdju:s] v.减少，减低，缩小
cloth [klɒθ] n.布，布料
ton [tʌn] n.吨
tons of 许多；很多
rubber ['rʌbə] n.橡胶
recycling [ˌri:'saɪklɪŋ] n.回收利用
rapid [ˈræpɪd] adj.快速的，迅速的
step [step] n.步骤，措施
grandson [ˈgrænsʌn] n.（外）孙子
granddaughter [ˈgrændɔ:tə] n.（外）孙女
【课文】
Unit 1
Activity 2
Mr Jackson: Can anyone tell me what you can see in the first photo?
Betty: There’s a factory, and it’s causing a lot of pollution.
Mr Jackson: Correct. So what can we do about it?
Tony: Well, there should be some rules to stop the pollution.
Mr Jackson: What about the second photo?
Daming: It’s a recycling centre. Waste products such as glass and paper can be recycled there.
Mr Jackson: Good. Why do we need to do that?
Lingling: To save energy, I guess.
Mr Jackson: Great!
Activity 3
Lingling: After our lesson on the environment, I'm worried about the future. Pollution is our great enemy, and we have to fight it. If the rivers are polluted, farmers can't use the water for their crops.
Tony: And in some places, pollution from factories spreads over cities and villages. It makes people ill, and may even kill them. Pollution is a danger to our health.
Betty: And there are so many cars on the roads. They use so much oil and cause pollution as well.
Daming: But we're only students. We can't do anything about factories and cars.
Betty: It's no use talking about things we can't do. We've' got to think of things we can do!
Daming: Such as... ?
Lingling: Do you think we can make our school a green school?
Daming: What's a green school?
Lingling: At a green school, every class collects waste which can be recycled or used again. Then the school sells the waste and uses the money to help students in poor areas.
Daming: Nice idea !
Betty: Students at a green school also learn ways to save energy and recycle at home. That means less waste.
Tony: That's a good idea. Though pollution is heavy now, I don't think it's hopeless. If everyone starts to do something, the world will be saved.
Unit 2
Activity 3
How to be green
By Wang Lingling
How green are you? Answer these questions and find out.
. Do you walk or ride a bike to school?
. Do you buy new clothes just because they are modern?
. Do you turn off the lights when you leave the room?
. Do you take your own bag when shopping and not ask for a plastic bag?
. Do you buy drinks in bottles? And what do you do with the bottles when they are empty?
. Do you divide the waste into things to recycle and things to throw?
We all need a healthy environment, but we produce waste every day, and it is harmful to our environment. Repeat these three words daily: reduce, reuse and recycle.
Reduce
Reduce means "use less". Do not waste things. It saves money and causes less pollution. Do not order more food than you can finish. Turn off the lights when you do not need them. Before you buy something new, think whether it is really necessary because maybe the old one is just as good!
Reuse
Reuse means "use again". Use things for as long as possible. Look after them so that they will last. Repair them if possible. Do not throw them away and buy new ones. Do not use paper cups or paper bags. It is better to use china cups and cloth bags because they can be used many times.
Recycle
Recycle means "change things into something else to be reused". Although it takes energy to change things into something else, it is better than throwing things away or burning them. We throw tons of rubbish away each year, and we have to make a change. Divide your rubbish into plastic, glass, paper and rubber. Develop a recycling policy for the whole community. Buy products such as recycled paper to help save trees.
We cannot hope for rapid change, but let's take these simple steps today so that we will save the world for our grandsons and granddaughters tomorrow.
Unit 3
Activity 8
Reuse and recycle
It’s a waste to throw used things away. Don’t throw away things made of glass, plastic and paper, but recycle them if possible. Plastic bags are hard to recycle, so reuse the old ones when you can. Take a bag with you when you go shopping.
Reduce pollution
Producing electricity and using oil may cause pollution of the air, water and earth in many different ways. If we use less electricity and oil, we can reduce pollution. Here is some advice: don’t leave lights on and waste electricity, walk or cycle, and don’t drive a car unless you have to. Walking and cycling are good for your health too!