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7月15日 Do you agree or disagree with the following statement that the most important problems in today’s world will be solved in our lifetime.
When it comes to the question of whether the major problems in present can be solved in our lifetime, different people have different opinions. Some people positively believe that we can get perfect solution of these problems, because of the development of our science and technology. While others do not think so. They are more practical than those positive people. From my point as a student, and also based on what I have learned from others and books, I do not think these major problems can be solved in our lifetime. My reasons are as follows.
To begin with, one of these problems-gobal warming-can not be solved in our lifetime. As the development of human society, fossils fuels had been widely used hundreds of years ago. The burnning of these fossil fuels released greehouse gases such as carbon dioxide. These gases caused temperature rised to rise quickly accross the world. Records revealed that because of global warming, the ice glacial in north pole begin to decreased, this situation also happened in the south pole和上一句合到一起吧. Scientists discovered this problem decades ago, they made lot of efforts to deal with this problems. But the result is not exciting. Because the development of industry needs fossil fuel as one kind source of power, and some factories also need coal and oil as raw materials to produce clothes, gasoline and so forth. Therefore, the release of these greenhouse gases is continue everyday. For example, huge amount of coal is burnning in power plant in countriesaccross the world. At the same time, people use cars, planes, buses to go to work and other places. All of these things consume oil and release carbon dioxide. Until now, scientists can not find efficient alternitive oil and coal. So, the relese of carbon dioxide will continue. therefore, the problem cannot be solved...加一句话吧
Moreover, people can not solve the shortage of water in the next hundrend years, which means that we can not solve this problems in our lifetime. Every year, there are many people diebecause of drought and lack of drink water. For example, in north Africa people need出现太多次了 to drill deep wills in order collect the ground water for drink and irrigate their crops. I heard from news that one year, a drought which lasted for three years in one part of this place had caused the death of hundred people. Although wills could provide water for these people, the resource may be used up in decades. Thus, the shortage of water is still a serious question in this place. In fact, this situation is not rare. In the last year, a drought also happened in southwestern China. Many people there had no water to drink, their crops were all died in the filed. In these cases, what people can do is waiting for the wet weather, but can not completely elimate drought.
Finally, people can not solve air polution in their lifetime. The release of poluted gases had exsisted for hundreds of years as global warming. Nowadays, the use of fossil fuels, the gases from chemical factories both polute the air. But people need the products of chemical factories and fossil fuel to do a lot of thing. For example, farmers need pesticides to kill harmful insects in the field; people need electricity to cook, lighting, to work on their computers and to power their cars. So, as far as people rely on these products, air polution will continue重复有些多了. In this way, air polution will continue.
Of course, some people may argue that some day people can use the energy from nuclear fusion, and this kind of power is unlimited. In fact, this technology can not be put into actual application because of the technology nowadays has no effect way there is no effective way of this technology to collect 有些中式英语了 to collect the enerty for nuclear fusion. So, based on what I have discussed above, the most important problems in modern world can not be solved in the next hundrend years.
观点结构 展开时没有什么问题啦 写作的时候要注意措辞啊 一个词不要重复太多哦 发现kch在句子简洁性上还有很大提升空间 简洁些就是很好的文章了 |
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