as we know , water is very important to man, we can’t live without water. the amount of water which is suitable to drink is less and less. but some people don’t care about it .they waste a lot of water in their daily life. even worse, they pour dirty water in to rivers. they throw rubbish into rivers , too. many rivers and lakes are seriously polluted.something must be done to stop the pollution. only in this way can we live happily. if we don’t save water, the last drop of water will be a tear-drop of us.
we know that despite the fact that seventy percent of the earth's surface is covered with water, only a little part of it is fresh water. yet the demand for fresh water in our daily life and in industry seems great. moreover, with the expansion of the population and development of industry, the amount of the fresh water needed will increase even rapidly. it is estimated that if such a trend continues, the fresh water on earth will be exhausted very soon. what is worse, more and more water resources are being polluted, making the water unfit to use.
in addition,we must warn the people of the importance of water and the danger we are facing.for example, in most asian societies where rice is the staple food, the water used after cleaning rice contains various nutrients for plant growth and is an excellent detergent to flush the toilet. furthermore, the intriguing idea of converting the inexhaustible sea water to fresh water supplies will be the ultimate solution.
Some people think studengts need not do any housework。They think the only thing students need do is to study well。 I don’t think so。 It is good for students to do some housework for three reason。
Firstly,to do some housework can make you independent。You can’t depend on others all your life。So,you should learn to do some housework now。
Secondly, to do some housework can keep you healthy and strong ,some hard housework can be regarded as a kind of physical exercise。
Finally, to do some housework can share your parents’ work 。They must be happy if you say” Have a rest ,and I will do the housework”
So I think it is good for students to do some housework。
Is it good for students to do some housework
Secondly, to do some housework can keep you healthy and strong ,some hard housework can be regarded as a kind of physical exercise。
Finally, to do some housework can share your parents’ work 。They must be happy if you say” Have a rest ,and I will do the housework”
So I think it is good for students to do some housework。
这是好学生做一些家务其次,做一些家务能够让你保持健康和强壮,一些硬家务可以看作是一种体育锻炼。
最后,做一些家务可以分享您的父母的工作。他们必须高兴,如果你说“休息一下,我会做家务”因此,我认为这是为学生好做一些家务。
是写信人对收信人的称呼用语。位置在信内地址下方一、二行的地方,从该行的顶格写起,在称呼后面一般用逗号(英国式),也可以用冒号(美国式)。
(1)写给亲人、亲戚和关系密切的朋友时,用Dear或My dear再加上表示亲属关系的称呼或直称其名(这里指名字,不是姓氏)。例如:My dear father,Dear Tom等。
(2)写给公务上的信函用Dear Madam,Dear Sir或Gentleman(Gentlemen)。注意:Dear纯属公务上往来的客气形式。Gentlemen总是以复数形式出现,前不加Dear,是Dear Sir的复数形式。
(3)写给收信人的信,也可用头衔、职位、职称、学位等再加姓氏或姓氏和名字。例如:Dear Prof. Tim Scales, Dear Dr.John Smith。
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