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.
to whom it may concern:
ive been michael smiths manager at xyz engineering for almost four years. it was my pleasure to promote michael to mechanical engineer last year, because he consistently meets and often exceeds his job requirements.
michael is an enthusiastic, dedicated employee with reliable work habits. he often does not need guidance or supervision, but willingly accepts it when offered. he is consistently successful in improving his skills, and he works hard to do so.sincerely,
[signature]
manager, mechanical engineering
水是一切有机体的主要组成部分,全球动植物和40亿人体内含有约11200亿吨水。人类社会依赖水而生存发展。古代,人类对水取利避害,适应水而生存;近代,人类对水兴利除害,兴建工程,开发水利,控制水害;现代,随着社会和生产的发展,地球上可资利用的水日趋短缺,水体受到污染,严重影响人类生存的环境,人类逐渐认识到水是一种重要资源和环境因素,从而在更高的水平上开始对水开展了新的兴利避害活动。
世界气象组织1996年初指出:缺水是全世界城市面临的首要问题,估计到2050年,世界2/3以上的人口将生活在城市,而全球有46%的城市人口缺水,必须平衡社会经济发展和城市淡水供应管理二者之间的关系,进行水资源的储存、输送和管理的大规模工程建设。
相关文章:
pril12,XX
dear sir or madam:
i am xxx, general manager of xxx. learning that an excellent staff member of ours, mr. xxx is intent on further studying abroad, i am much pleased and gratified. in my opinion, such a promising youth striving for progress should receive better education so as to create a brighter future. therefore, it gives me a high honor to strongly recommend this outstanding young man to your world-renowned university.
mr. xxx once did practice in ours in his last academic year at university. though he was not familiar with business and insufficient in working experience, he, instead of admitting defeat, never allowed any opportunity to study to slip away. taking full advantage of leisure time, mr. xxx thumbed through volumes of books regarding business and remitted to other experienced staff members modestly. gradually, he became well versed in various business and obtained certain working results. never satisfied with and proud of his acquisition, mr. xxx still communicated and discussed modestly with his colleagues about some puzzles he encountered in the work till finding out solutions. in light of his praiseworthy performance in the practice, we made an exception to recruit him as a full member of ours after his graduation (we seldom hire those just graduating from universities.
by now, as a business elite of ours, mr. xxx works even seriously, responsibly and diligently, setting a good example to other staff members. every drop of sweat will be repaid. mr. xxx has been appraised as excellent employee of ours and awarded considerable bonus.
to some extent, it may be a great loss of our company that such a superexcellent employee as mr. xxx is going to study abroad. however, in consideration of his prospect, i, without any hesitation, am in great favor of his decision of studying at your reputable university. with great sincerity, i expect that you will support his application fully and grant him an opportunity to uplift himself and realize his dream. thanks a lot.
respectfully yours,
xxx
general manager
xxx
tel: xxx
e-mail: xxx
感谢您为孩子成长所作出的不懈努力,感谢您对学校工作的理解、支持与配合!在暑假期间,家长一定要监管好自己的孩子,确保孩子的安全。
一、防溺水事故:家长要切实监护好子女,随时提醒教育子女不准单独或与朋友结伴私自下河游泳、戏水,不到河、沟、塘、渠、水库边玩耍,防止溺水伤亡悲惨事件的.发生。家长发现有学生在水边玩耍或游泳要及进劝阻,要教育在发现有人溺水时大声呼喊救人,不要盲目下水施救。
二、防交通事故:教育子女外出时必须严格遵守交通规则,做到不无证驾驶摩托车等机动车辆,不违章骑自行车,不违章穿行机动车道,不乘坐无牌、无证的“黑车”及超载车辆,不在公路上打玩、追逐、搭人、游戏、攀爬车辆。未满12周岁的学生,禁止骑自行车上路。家长要做遵守交通规则的榜样,引导孩子遵规守矩,并要管好家中机动车辆的钥匙,不准默许孩子无证驾驶机动车。
三、防食物中毒事故:暑期气温高,食物容易腐败变质,要教育子女不买不吃“三无”产品或腐败变质食品,不吃陌生人给的食物,不吃不知道的食物。
四、防气象灾害事故:暑期是台风、雷电等极端恶劣气象灾害的高发季节,要教育您的孩子在台风、雷电到来时,不到户外活动,特别是雷雨时不要在树下躲雨。
五、防传染病:要关注孩子身心健康,教育孩子养成良好卫生习惯,注意饮食卫生要对您的孩子进行流感等传染病防控知识教育,减少或避免前往人群拥挤场所。
六、防人身侵害:孩子假期参加社会实践活动或走亲访友必须由家长接送,不准单独外出,不准私自到同学、亲友家玩耍、留宿,外出时要教育子女不走偏僻小道,要走大路并做到3人以上结伴而行,在路上遇见陌生人不与搭话,不随意听信别人的话,防止上当受骗;要教育孩子离家外出活动务必预先告诉家长,避免发生意外事故。
七、防黄赌毒和网络侵害:要教育孩子远离黄、赌、毒,不进入游戏机室和网吧,在家上网要健康文明,自觉抵制网络不良信息,自觉遵守社会公德,做一个遵纪守法,文明有礼的学生。
八、防其他安全事故:暑假期间必须十分重视防火、防盗、防煤气中毒、防绑架、防***等工作,孩子在家不准玩火、玩电,防止触电伤亡、烧烫伤事件的发生。
九、暑假放假时间为:7月6日至8月30日,8月30、31学生回校注册,9月1日正式开学。
尊敬的各位家长,孩子安全情系千家万户,关系着家庭的幸福和社会的稳定,让我们密切配合,加强孩子的安全教育,做到平平安安过暑假,快快乐乐返校园!
the importance of water(一
水的重要性(一)
the importance of water(一)
it is well-known that water is indispensable in existing, in producing and in living. and we should
not waste of a drop of water.
众所周知,在生产和生活中水是必不可少的。我们不应该浪费一滴水。
first, water is definitely important for life. as is known to us all, water is necessary to sup
port life. without water, human beings, animals and plants cannot exist at all.
首先,水对生命是非常重要的。众所周知,水是维持生命所必需的。没有水,人类,动物和植物都不复存在。 second, water is also significant for producing. for one thing, industrial production needs a lot of water, such as using water to generate electricity. for another, agricultural production is also in need of water, especially in irrigation.
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。
to whom it may concern:
ive been ×××s manager at ××× engineering for almost four years. it was my pleasure to promote × to mechanical engineer last year, because he consistently meets and often exceeds his job requirements.
× is an enthusiastic, dedicated employee with reliable work
habits. he often does not need guidance or supervision, but willingly accepts it when offered. he is consistently successful in improving his skills, and he works hard to do so.
× is always willing to pitch in to help the team, and he gets the job done right the first time. he is efficient in planning
sincerely,
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