We live in the world every day. We eat food, drink water, wear clothes, watch TV, use computers and so on. We are producing waste every moment.
Generally speaking, there are four sorts of waste. They are material waste, organic waste, inorganic waste and poisonous harmful waste. Now, we are going to talk about each sort of waste one by one.
Material waste: it means the waste of substance or things from which something else can be made. For example, people throw away the used metal products and buy a new one, so the old metal waste accumulates. At last, they become waste. For example, when people finish reading newspaper, the paper will become waste. When the glass is broken, it also becomes waste. Nobody wants to use a broken window or drink with a broken glass or wear a pair of broken glasses. Once it is broken, it becomes waste. The rate of using plastics is increasing day by day. People use plastic bags because they are convenient. When they get home, they throw the plastics way, paying no attention to the environment. The more convenience plastics brings to us, the more plastic waste is produced. This is called white pollution as most plastics are white. Some of our products we use every day are made of rubber, just like the tyres and the bottom part of our shoes. Its true that rubber plays an important role in our life. However, it also brings us some trouble when it has been used for a long time and becomes old. The old tyres become waste because it cant break down by nature. This is really a big problem.
Organic waste: it refers to waste from living things, including waste from animals, plants and people. Some parts of vegetables are thrown away as waste because they dont taste good. In the past, people cooked their food using burning coal, so there left the burned coal, which is useless, like the thrown vegetables. All this sorts of waste contain organism, so it is called organic waste.
Actually, we also have inorganic waste, the opposite to organic waste, including building waste, broken pottery and china, and cinder.
The last part is harmful and poisonous waste, such as used batteries, electrical apparatus and medical supplies. Computers and TV sets are one part of electrical apparatus. You see, the old electrical apparatus can set off some dangerous rays and make the soil harder, even damage the under ground water. Mobile phones are as dangerous as computers and TV sets. As we know, X-rays can be used to examine patients, but the X-rays machines are dangerous when they are thrown away without any treatment. They cant be used to treat the sick, but they still can give off rays. For the normal people, they can be dangerous. So, we must think about this problem.
As waste has four sorts, we can sort them into each sort that they belong to. Its convenient to treat them after they are sorted. Then we can deal with them sort by sort. We have thought out some methods like storing them in order to change them into plant food, or burning them in a huge stove and use the heat to make electricity. For the first way, the change rate is much too low and it may pollute the under ground water. For the second one, of course its wonderful if its easy to be tried out. But to build such a huge stove will cost too much. Not a good method. Now you see, treating waste is not an easy job.
From what has been discussed above, we can do something to our homethe earth. We should make full use of things. At the same time, wed better reduce its harmful effect as much as possible.
We can do from the basic of waste. Thats to say, we can reduce the production of waste, and reuse and recycle them as much as we can. Take material waste for example. Nearly all of them can be recycled and reused. And, we should call for using things made of paper instead of plastics so as to protect our environment.
Protecting the environment is not one persons duty; it depends on all of us. What can we do? Maybe a dozen..
In a word, use what can reuse as much as possible. Remember, environment protection is not ones duty!
2011年实用口语练习:表达鼓励的10句英语
2011年实用口语练习:Arrival 入学报到啦
实用口语情景轻松学:老外和菜农砍价时的地道英语对话
口语情景对话:走遍美国精选 二度蜜月ACT 3 - 2
口语情景对话:走遍美国精选 偷得浮生半日闲ACT 3 - 1
新东方英语口语开口篇:打招呼(3)
2011年实用口语练习:这只是“权宜之计”
实用口语:选举 Elections
大学新生常用口语:熟悉校园和同学
2011年实用口语练习:背后捅刀
疯狂口语要素精选 6
英语口语主题:交际英语热门话题47个(21--生日派对)
实用口语情景轻松学:Take baby steps 慢慢来
口语情景对话:一个真正的斯图尔特家的后代ACT 1 - 3
奥运会实用英语口语200句:这是一个非常受人欢迎的目的地
2011年实用口语练习:歉意怎么说出口(2)
实用口语:Nicole's day at school
2011年实用口语练习:一起来找“茶”
地道英语口语:关于“apple”的英语俚语
实用口语情景轻松学:你知道怎么申请赴美签证吗?
实用口语情景轻松学:说一说旅行要准备的东西
口语情景对话:走遍美国精选 做游戏ACT 3 - 2
实用英语口语要素精选24
实用口语情景轻松学:你最喜欢哪个季节?
2011年实用口语练习:今天你“团”了吗
新东方英语口语开口篇:描述外貌(3)
最常用的26句生活用语
英语口语主题:交际英语热门话题47个(11--表达歉意)
2011年实用口语练习:静观其变
疯狂口语要素精选 13
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |