Thus, a conclusion can be drawn that as income increases, people can improve their living step. But still the average family has to spend a large part of income to meet the basic needs.
3
Where is my home?
Some fish are forced to leave polluted water and are flying in the sky. But unfortunately, air is also so polluted that they have to wear masks. Each of them is crying, “Where is my home?” What a terrible sight!
Mankind has brought so much pollution. Waste is being poured into rivers and seas. Poisons to kill pests in farming and chemicals go into rivers and seas, too. Poisonous gasses from factories also make the air so dirty. The whole balance of nature is being destroyed as a result of our ignorance of the environmental protection.
Personally, man can not live alone on the earth. Should fish die from serious pollution, so would man! It is high time we did something to prevent such a scene from happening.
4
Recently I have made an investigation on whether a model-test paper for Senior Three should be difficult or easy.Opinions are divided on this matter.
Some students think that a difficult exam is just like a challenge.The harder, the better.It can help students find out where they are weak in studies and improve their learning approaches.
Others，however，are against a difficult exam.In their opinion，if it is very difficult，they may become discouraged and feel terrible about the coming College Entrance Examination.Besides，with an easy exam，they can get high marks and gain confidence.
I prefer it to be neither too difficult nor too easy, because if it is too easy,teachers will not know how we are getting on with our studies, but if it is too difficult, we will lose heart