Lack of water is now a serious problem in almost every country. Providing Access to Clean Water precisely introduces the serious situation of lack of clean water and some technologies to solve this problem. Our planet has enough water actually, but clean water cannot be found in some places where people suffer from shortage of clean water. In some regions having enough water, people still cannot have access to it because of political and economic reasons. Besides, agriculture and industry take most of water we use. Although we have enough water in our planet, we cannot use it because it is in oceans. Salty water takes up most of the water in our planet. And in the small percent of the water in the world, most of it exists as snow or ice. People cannot use it directly. Usually we humans use the water from underground. However, humans use it so fast that it even cannot refill itself. Nowadays, clean water is transited from where it is abundant to where it is in short in some countries, but this method is not perfect and it still has some drawbacks. It cannot be applied for a long term. People now use different methods to deal with scarcity of water. Desalination is one of the methods used, especially in Middle East. It can provide clean water significantly, but it can only be applied in some seaside cities in rich countries because of high expense. To improve the method of recycling wastewater is another way to provide clean water. The recycled water can be put to use in industry. Also, people can try to reduce the water use. In recent years, finding more water resource is tough, but people can try to use water efficiently. Furthermore, people also need to find some methods to deal with uneven distribution of water. All in all, engineers still have to face this serious lack of water.
Reference: Grand Challenges for Engineering, Sep 26,2008 http://www.engineeringchallenges.org/cms/8996/9142.aspx?printThis=1
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3 comments:
Surprisingly to see you use the same passage like what Justin and I did.You make the summary short and easy to be understand. It is quite a good piece of work. But i have doubt with the line "Although we have enough water in our planet, we cannot use it because it is in oceans." It sounds bit awkward though. I think we cannot use the water from ocean is because it is salty but is not it is in ocean.
Hey liu Fang, u have made the summary easy to understand. However, i think some part of ur summary is to elaborative in which you could have rephrase it to make it shorter.
For example, u wrote
"Our planet has enough water actually, but clean water cannot be found in some places where people suffer from shortage of clean water. In some regions having enough water, people still cannot have access to it because of political and economic reasons"
I think it would be better if u put them in to one sentece: "Although our planet has enough water, some pepople still faces water scarcity due to political and economic reasons."
This will make ur summary more substantive and mature. There a few more lengthy elaborations which u could have shorten it.
The last sentence sounds awkward though. YOu wrote "All in all, engineers still have to face this serious lack of water."...I think there is a clause or wrong usage of phrase or word. I think it could be corrected "....still have to face water shortage issues"...
I hope i am right ...heheh...
There is room for improvement in yout summary. A good attempt overall.:)
I didn't read the original article, so i don't know if you have get all the main ideas. from what i have read your sentence are well organised, and i can hardly find any mistakes. however, if you could make it a bit shorter the cover the real main idea and donot repeat the ideas, it will be better.
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