【正确答案】Key Points:
The current situation, reasons and solutions of environment:
①Pollution is becoming more and more serious all over the world. The poisonous gases emitted by factories and automobiles has made the air unhealthy for people to breathe.
②Air pollution caused by chemicals is a very serious problem because it damages the ozone layer. Without the ozone layer, not only ourselves but all plants and animal lives are exposed to dangerous rays from the sun.
③Aerosol can emit chemicals which break down the ozone layer. Refrigeration and airconditioning systems and card also release dangerous emissions.
④Measures are being taken to cope with the problem. Firstly, many new laws have been passed placing strict control over industrial pollution. Secondly, a large-scale program is now underway to educate people to be responsible citizens in fighting pollution. Finally, the government has started building various facilities such as sewage treatment plants and has encouraged scientists to work out more and better ways to reduce air pollution. It is hoped that these measures will be effective and will restore a healthy environment.
⑤Waste water keeps pouring into lakes, rivers and as a result many water species are dying out. Furthermore, litter is a problem everywhere we go. Pollution is in fact threatening our existence.
⑥Everyone agrees that water pollution is a serious problem. Lakes, rivers and even oceans all over the world are becoming polluted with garbage and dangerous chemicals. Factories contribute to the problem because they rely on rivers for the disposal of their waste products. Oil and other chemicals can kill fish and make water unsafe for drinking. Polluted water is a hazard to everyone.
⑦Many governments both in developed countries and in developing countries have laid down rules and regulations in respect to the pollution problem. Factories in cities, towns are forbidden to drain waste liquids into rivers, lakes and seas until they have been totally treated and purified. With the progress of science and technology, a series of advanced methods have been developed to treat contaminated water. And certain remarkable results have been achieved. Rivers which used to be polluted by industrial chemical wastes are now being cleaned and fish which could not live there a few years ago can be caught again.
⑧Man's survival relies heavily on nature. Almost everything we use in our everyday life comes from nature, ranging from the food we eat and the water we drink, to the wood which is turned into furniture. With the development of technology and population growth, the amount and range of materials used has increased at an alarming rate and there is no hope of replacing them. The widespread water shortage is a case in point. If man continues to squander natural resources with no thought for the future, the later generations will encounter huge problems.
⑨People are beginning to show a real concern over the problem. There is an increasingly call from the public for firm action against pollution.
⑩The reduction of wooded areas has already led to increased flooding and water shortages in dry seasons. It is reported that as much as 70% of the woods in Asia will be gone in 20 years unless action is taken now to save them.