高二英语作文：河流污染RiverPollution热门20篇

industrial pollution is the industrial production process of the formation of gas, waste water and solid emissions on the environment pollution. industrial pollution is mainly concentrated in a few industries. paper, chemical, steel, electricity, food, mining, textile and other seven sectors accounted for the total wastewater discharge 4 / 5. paper and food industry accounts for cod emissions of cod emissions 2 / 3, non-ferrous metallurgical industry, heavy metal emissions of heavy metals emissions account for nearly 1 / 2. industrial pollution is the industrial enterprises in the production process, including human biological survival and reproduction of the natural environment against. pollution is mainly from the production of the "three wastes" (waste water, waste gas, waste) and all kinds of noise caused can be divided into water pollution, air pollution, waste pollution, noise pollution.

industrial pollution hazard. first, a large number of industrial production in the discharge of untreated water, gas, slag and other hazardous waste, it will seriously damage the ecological balance of agriculture and natural resources on the development of agricultural production caused great harm; second, industrial "three wastes" of the industry production itself is also very serious hazards, toxic pollutants can corrode pipes, damaged equipment, affecting plant life, etc.; third, environmental pollution, rampant pollution, directly endangering the health of the masses; also some contamination is not easy to find, after the damage that has very serious

Recently there are start-up has been the topic on TV, said everyones home for a start-up and house rules. I is according to the news on the project, to write the composition. Now everyone is pay attention to the atmosphere in the home, the scope of the ethos have greatly small, textual research, also has a ban feng, todays talk about this family trait.

So-called ethos of Dans home, the family culture of good or not will affect the future generations, a family or family start-up is to, first is to pay attention to good home, good for manage a household. Dan also is divided into several kinds, at home to do, do the housework at home, etc., in the home do are good family trait. Dan also treats the wind, is a family or the familys traditional fashion.

Discipline is very strict, so the family of rules must be strictly abide by the provisions by a family of behavior standards, are generally passed down by a family education specification guidelines for our grandchildren. House rules is also called the French state-owned national law, the home has rules, is refers to a country has the law of a country, a family has a family rule, this rule is equivalent to the law of the country. Refers to the rules of the family, doing everything to know about the rules.

Finally, I think a good start-up and house rules everyone should strictly abide by, our pupils will abide by the good conduct, speak rules, to justice.

前段时间电视上一直在放着家风这个话题，说每个人的家里都要有家风和家规。我是根据新闻上的专题，来写这篇作文的。现在大家都很注重家里的风气，风气的范围有大有小，有国风、也有班风，今天就来讲一下这个家风吧。

所谓的家风就是自己家里的风气，家里的风气好不好就会影响到子孙后代，一个家庭或家族的家风要正，首先是要注重以德立家、以德治家。家风也分为好几种，在家里做的事、在家里做家务等等，在家里做的事情的是好家风。家风也叫门风，是一个家庭或家族的传统风尚。

家规很严格的，所以家里的规则必须要严格遵守一个家庭所规定的行为规范，一般是由一个家族所遗传下来的教育规范后代子孙的准则。家规也叫家法，国有国法，家有家规，就是指一个国家有一个国家的法律，一个家庭有一个家庭的规矩，这个规矩就相当于国家的法律。指家庭的规矩，做任何事都要懂得讲规矩。

最后，我觉得好的家风和家规每个人都要严格的遵守，我们小学生也要自己遵守好的行为规范，讲规矩，要正义。

There are lots of volunteers around us now. And they dont do it for money,

they do it only for happy or others。As a young student, helping other people is

a major commitment.

If I have a chance to join a volunteer club and to be a volunteer who helps

others，I will try my best to help others。In my classroom ，I am good at math and

science ，I can help my classmates who are in trouble if I am free.In primary

school, I can help teach young students paint because I am good for drawing.And

I am good at singing，so I can sing songs to cheer up the sick people in the

hospital。Also,I can help the old people in the old peoples home , I can clean

the floor and do chores ，because I think the old people will be very tired and

hard if they do the housework by themselves.

Except these,so many things I can do . Not only I feel good about helping

others , but also I do something useful . So I think I should study hard to

improve my skills and I will help others in the future.

1、the + ~ est + 名词 + (that) + 主词 + have ever + seen ( known/heard/had/read, etc)

the most + 形容词 + 名词 + (that) + 主词 + have ever + seen ( known/heard/had/read, etc)

例句：Helen is the most beautiful girl that I have ever seen.

海伦是我所看过最美丽的女孩。

Mr. Chang is the kindest teacher that I have ever had seen.

张老师是我曾经遇到最仁慈的教师。

2、Nothing is + ~~~ er than to + V / Nothing is + more + 形容词 + than sth

例句：Nothing is more important than to receive education.

没有比接受教育更重要的事。

3、cannot emphasize the importance of ~~~ too much.（再怎么强调...的重要性也不为过。）

例句：We cannot emphasize the importance of protecting our eyes too much.

我们再怎么强调保护眼睛的重要性也不为过。

4、There is no denying that + S + V ...（不可否认的...）

例句：

There is no denying that the qualities of our living have gone from bad to worse.

不可否认的，我们的生活品质已经每况愈下。

5、It is universally acknowledged that + 句子~~ （全世界都知道...）

例句：It is universally acknowledged that trees are indispensable to us.

全世界都知道树木对我们是不可或缺的。

6、There is no doubt that + 句子~~ （毫无疑问的...）

例句：There is no doubt that our educational system leaves something to be desired.

毫无疑问的我们的教育制度令人不满意。

7、An advantage of ~~~ is that + 句子 （...的优点是...）

例句：An advantage of using the solar energy is that it wont create (produce) any pollution.

使用太阳能的优点是它不会制造任何污染。

8、The reason why + 句子 ~~~ is that + 句子 （...的原因是...）

例句：The reason why we have to grow trees is that they can provide us with fresh air./ The reason why we have to grow trees is that they can supply fresh air for us.

我们必须种树的原因是它们能供应我们新鲜的空气。

9、So + 形容词 + be + 主词 + that + 句子 （如此...以致于...）

例句：So precious is time that we cant afford to waste it. 时间是如此珍贵，我们经不起浪费它。

10、Adj + as + Subject（主词）+ be, S + V~~~ （虽然...）

例句：Rich as our country is, the qualities of our living are by no means satisfactory. {by no means = in no way = on no account 一点也不}

虽然我们的国家富有，我们的生活品质绝对令人不满意。

11、The more …, the more

例句：The harder you work, the more progress you make.

你愈努力，你愈进步。

The more books we read, the more learned we become.

我们书读愈多，我们愈有学问。

12、By +Ving, ~~ can ~~ （借着...，..能够..）

例句：By taking exercise, we can always stay healthy.

借着做运动，我们能够始终保持健康。

13、~~~ enable + Object（宾语）+ to + V （..使..能够..）

例句：Listening to music enable us to feel relaxed.

听音乐使我们能够感觉轻松。

14、On no account can we + V ~~~ （我们绝对不能...）

例句：On no account can we ignore the value of knowledge.

我们绝对不能忽略知识的价值。

15、It is high time that + 过去式 / should do （该是...的时候了）

例句：It is high time that the authorities concerned took proper steps to solve the traffic problems.

该是有关当局采取适当的措施来解决交通问题的时候了。

16、Those who ~~~ （...的人...）

例句：Those who violate traffic regulations should be punished.

违反交通规定的人应该受处罚。

17、It is obvious that + 句子 （明显的）

It is apparent that + 句子 （显然的）

例句：It is conceivable that knowledge plays an important role in our life.

可想而知，知识在我们的一生中扮演一个重要的角色。

18、That is the reason why ~~~ （那就是...的原因）

例句：Summer is sultry. That is the reason why I dont like it.

夏天很燠热。那就是我不喜欢它的原因。

19、Much remains to be done. 还有很多有待于去做。

Only in this way can we ……. 只有通过这种方式我们才能……

Sb is to blame for …… 该批某人因为……

20、be based on （以...为基础）

例句：The progress of thee society is based on harmony.

社会的进步是以和谐为基础的。

21、Spare no effort to + V （不遗余力的去做……）

例句：We should spare no effort to beautify our environment.

我们应该不遗余力的美化我们的环境。

22、be closely related to ~~ （与...息息相关）

例句：Taking exercise is closely related to health.

做运动与健康息息相关。

23、Get into the habit of + Ving

= make it a rule to + V （养成...的习惯）

We should get into the habit of keeping good hours.

我们应该养成早睡早起的习惯。

24、Due to/Owing to/Thanks to （因为...）

例句：Thanks to his encouragement, I finally realized my dream.

因为他的鼓励，我终于实现我的梦想。

25、What a + Adj + N + S + V!

= How + Adj + a + N + V!（多么...！）

例句：What an important thing it is to keep our promise!

How important a thing it is to keep our promise!

遵守诺言是多么重要的事！

26、Have a great influence / effect on ~~~ （对...有很大的影响）

例句：Smoking has a great influence on our health.

抽烟对我们的健康有很大的影响。

27、do good to （对...有益），do harm to （对...有害）

例句：Reading does good to our mind.读书对心灵有益。

Overwork does harm to health.工作过度对健康有害。

28、Pose a great threat to ~~ （对...造成一大威胁）

例句：Pollution poses a great threat to our existence.

污染对我们的生存造成一大威胁。

第一篇

i hope to go on a trip to beijing,but my mother always tells me "you cant".she thinks i am too young to go to beijing,and i am too busy at school.this term is over,to my surprise,my mother will take me to beijing.i am very excited!then i have a traveing plan for this trip:first i will go to the tiananmen square,i will take many pictures.then i am going to the place museum,i can see many old builds there.second,iam goingto the wangfujing street,we will buy many things,for example,foods,clothes and some books.then i will go home. i think i will have a great trip to beijing.

我希望去旅行到北京,但是我的妈妈总是告诉我“你不能”。她认为我太年轻,去北京,在学校,我太忙了。这学期结束了,让我惊讶的是,我妈妈将带我去北京。我非常兴奋!然后我有一个横梁为这次旅行计划:首先,我将去天安门广场,我将拍很多照片。然后我要去博物馆的地方,我可以在那里看到许多老版本。第二,我去王府井大街,我们会买很多东西,例如,食物、衣服和一些书籍。然后我就回家了。我想我将会有一个伟大的旅行到北京。

第二篇

for the 1st day, we would like to visit sydney for the well-known sydney opera house. it is like a shell lying in the bay.

then, we would go to melbourne by train. it is the trading center of australia, and what is more, the best college in australia, the melbourne university, is located there. it ranks 22 in the world college billboard. it is such a wonderful chance for us students to pay a visit to the great academy, hoping that one day in the future we will grasp the opportunity of studying there through hardworking.

第一天,我们想去悉尼著名的悉尼歌剧院。它就像一个壳躺在海湾。

然后,我们将乘火车去墨尔本。这是澳大利亚的交易中心,更重要的是,在澳大利亚最好的大学,墨尔本大学,坐落在那里。它在世界大学排名22广告牌。这是这样一个美妙的机会对我们学生参观伟大的学院,希望将来有一天我们将抓住机会学习通过勤奋。

Once I saw the TV show, it was about the fathers and their kids having the match, they were separated by five groups and compete for the match. At first, they were competing happily, but as the game came to the end, the last group was so worried. The father inspired his kid to stick on and finish the match, while the kid was crying because he knew he must be the last. After the match, the father told his kid that winning was not the most important thing for the match, the first thing was to enjoy the game and finish it, the result was not that important. I agree with the father, the child must be endowed with the consciousness that to enjoy the game is more important than to win. Every match can only have one win, but we can enjoy every match.

曾经我看到一个电视节目，那是关于爸爸和孩子在比赛，他们分成五个组，在进行比赛。一开始，他们比得很开心，但是随着比赛来到结尾，最后的那组显得很着急。爸爸鼓励他的孩子坚持完成比赛，然而孩子却在哭泣，因为他知道他肯定是最后一名。比赛过后，爸爸告诉孩子，对于比赛来说，赢不是最重要的，最重要的是享受比赛，并且完成它，结果也不是那么的重要。我同意那位爸爸的话，孩子必须要有这样的意识，享受比赛比赢得比赛更为重要。每个比赛只有一个赢家，但是我们可以享受每场比赛。

When we are feeling sick and lying in bed, is parents will take care of us; When we test sent, it is parents encourage us; When we made a mistake, it is the parents education in the us to correct our mistakes...

Thank my parents when I was frustrated, encouraged me, comfort me, give me courage, let me set up confidence to face the difficulties bravely. Remember a math test, I only got eighty points. I returned home, sadly homework also do bad, eat not sweet. Mom saw my abnormal, kindly ask me why sat by my side. I YiWuYiShiBa exam told his mother the truth, I didnt expect that my mother did not criticize me, instead, comfort I said: "good kid, a failure is not equal to yourself is not good, do you want to analysis the reason, well know where mistakes, this is progress." Listen to the mother, I feel much more relaxed.

Have words to say well "who made the heart-inch grass, at a three chunhui". Therefore, in order to repay hard raising my parents, I must study hard now, when I grow up, find a good job, let parents abetted. Parents paid for me, I will thank you ten times, one hundred times, return them, let them give valuable.

当我们生病卧床不起时，是父母在无微不至地照顾着我们;当我们考试考差了，是父母的鼓励着我们;当我们犯了错误，是父母的教育着我们改正错误......

感谢父母在我受到挫折时，鼓励我、安慰我、给我勇气，让我树立自信勇敢地去面对困难。记得一次数学测验，我只考了八十多分。我垂头丧气地回到家，作业也做不好，饭吃不香。妈妈看见我的反常，坐在我的身边和蔼地问我原因。我一五一十把考试的实情告诉了妈妈，令我没想到的是妈妈不但没有批评我，反而安慰我说：“好孩子，一次失败不等于自己就不优秀了，你要好好地分析原因，知道错误到哪里，这就是进步。”听了妈妈的话，我的心情一下子轻松多了。

有一句话说得好“谁言寸草心，报得三春晖”。因此，为了报答辛苦养育我的父母，我现在一定要好好学习，长大后，找一个好的工作，让父母安享晚年。父母为我付出的，我将十倍、百倍的感谢、回报他们，让他们的付出有价值。

The language develops as the media become various, many years ago, people used the language that was very formal, because most oral language was always the same as the paper language. But as the time by, people started to use computer, they shared the information, at the same time, many new language was created. The Internet language is in favor by people, they like to use it, because it is fashionable and very appropriate to express what they mean. I like to use the Internet language, it is so new and fun, what’s more, it is convenient, like I can use the shorten words instead of the long words. The problem of the Internet language is that it is very informal, it can’t be written in the paper, it will changes as the time goes by. In my opinion, we can use the Internet language in informal occasions.

语言的发展伴随着多媒体的多样化，很多年以前，人们使用正式的语言，因为大部分口语和书面语言差不多。但是随着时间的流逝，人们开始使用电脑，他们分享信息，同时，很多新的语言被创造出来。网络语言为人们所喜爱，他们也乐意使用，因为这很时尚，也能恰当地表达人们的意思。我喜欢使用网络语言，那很新鲜和有趣，而且，也很方便，比如我可以使用短的词来代替长的词。网络语言的问题在于非常不正式，不能书面书写，网络语言也会随着时间而改变。在我看来，我们可以在非正式场合使用网络语言。

Some days ago,it was the Chinese Spring Festival.So I went to shopping with

my parents.the old saying said that to go to outside to have a walk in the new

year,you could get the good luck within this whole year.it always a happy

festival in our country,and the folk in the departments were very happiness. it

was very crowded.we went to the downtown to buy some presents for our

relatives,of course,i got a big present from my parents.it was a thing that i

wanted to get for a long time.you know,it was the festival,so all the

departments were saled their products in a low price. its cheap for us.all the

things you saw were perfect.i was very happy that i could go to shopping with my

parents. because i could get the present,and the most important reason is i

could go with my parents.

香烟是危害人体健康的一位温柔的“杀手”，据媒体报道，吸烟的人容易得多种疾病，如肺炎、支气管炎、心血管疾病等等，吸一包香烟相当于减少1小时的生命。

我看过爸爸20多岁时的照片，那时的她白白胖胖，脸色红润。可不知什么时候起，爸爸每天都要吸一包烟。慢慢的，他的牙齿变黑了，手指变黄了，身上散发出一股难闻的烟味。我见了他，躲都来不及。我和妈妈几次劝爸爸戒烟，可他却说：“现在生活安定了，也该学着享受，再说，吸烟的男人有风度嘛！”虽说我们心里不高兴，但妈妈心软，最后还是由着她。

过了不久，我发现爸爸开始咳嗽，那声音越来越响了。先是轻轻的几声，然后是连续不断的咳嗽。有时咳得脸发红，连眼泪都流出来了。每天晚上，还没看见他回家，就可以听见他那刺耳的咳嗽声了，那声音听起来像七八十岁的老人一样苍老。爸爸实在熬不过，就只好求助医生。经过医生诊断，发现爸爸得了气管炎，这下，爸爸不得不下决心戒烟了。有时见爸爸实在忍不住了，我就把零食往他的嘴里塞，这个办法还真管用。

现在，爸爸长胖了，胃口开了，精神也饱满起来了。爸爸也主动把原来用来吸烟的钱补贴家用，有时也给我买学习用品、玩具，给妈妈购买衣服、营养品。现在，我的家里又充满了欢声笑语。

Cigarettes are endangering human health a gentle "killer", according to media reports, smokers prone to many diseases, such as pneumonia, bronchitis, cardiovascular disease, etc., 1 hour less smoke a pack of cigarettes is equivalent to life.

I saw the pictures of my father in his 20s when she was fat and red. I dont know when my father would smoke a pack of cigarettes every day. Slowly, his teeth blackened, his fingers turned yellow, and he smelled a bad smell. I saw him, and it was too late to hide. My mother and I advised my father to give up smoking a few times, but he said, "now that life is settled, we should learn to enjoy it. Besides, the man who smokes has grace!" Though we were not happy in our hearts, our mother was soft and finally let her alone.

After a while, I noticed that my father began to cough, which was getting louder and louder. First a few words, then a continuous cough. Sometimes his face turned red and his tears ran out. Every night, before he could see him go home, he could hear his shrill cough, which sounded as old as an old man in his 70s and 80s. Dad couldnt survive but he had to go to the doctor. After the doctors diagnosis, he was found to be suffering from bronchitis, and the father had to make up his mind to quit smoking. Sometimes I cant help seeing my father, but Im putting a snack in his mouth, and it works.

Now my father is fat, his appetite is open and his spirit is full. My father also offered to subsidize the money used for smoking. Sometimes he also bought me school supplies, toys, clothes and nutrition for my mother. Now my home is full of laughter.

The large number of our population has become one of the most serious

problems of our society. According to a recent survey of the National Bureau of

Statistics, there are more than 1.3 billion people in our country, which account

for about 1/5 of all the people in the world. the same survey also predicts that

our population will grow quickly in the years to come.

Overpopulation has brought about a series of negative effects to our

economic development and social security. In the first place, too many people

impose a heavy burden on our environment. As a result, we suffer from a shortage

of fresh water and natural resources. In the second place, as the supply of

labor GREatly exceeds the demand of the society, many people become employed.

This is a source of social unrest. Last but not least, we have to manufacture

all kinds of products to meet the needs of the people, which causes environment

pollution to our lakes and land.

Serious though the problem seems, we have to take some measures to tackle

it. On the one hand, the government should carry out more strictly the policy of

family planning, thus reducing the total number of population. On the other

hand, all the people should realize the harms of overpopulation. With the

concerted efforts of all the parties concerned, we’re sure to solve the problem

in the future.

with the improvement of our living standard, more and more people can afford a car. as a result, our roads are more often than not crammed with cars. however, with more and more waste gas being discharged by the cars, the problem of air pollution becomes even more serious. so nowadays we advocate to lead a low-carbon life.

my suggestion is we should ride bikes more often instead of driving cars.by riding a bike, we can not only exercise our body but also protect our environment. why not have a try, my dear friends?

与我们的生活水平的提高,越来越多的人都买得起汽车的.因此,道路往往没有堆满了汽车.然而,随着越来越多的废气排放是汽车、空气污染问题变得更加严重.所以现在我们提倡过低碳的生活.

我的建议是我们应该更经常骑自行车而不是开车骑一辆自行车,我们不仅能锻炼身体,也能保护我们的环境.为什么不试试,我亲爱的朋友?

It’s normal that we all have our own interests and it’s various from people to people. Some people may be interested in sports and some others in music or literature. In short, it’s good for us to have our own interests or hobbies and it means a lot. For one thing, having some interests can bring us a sense of belonging, for it’s your own thing and no one can carry off from you. For another, interest is our best teacher. If you like something, you have the desire to go deep to it. Last, developing interest is a good way to make friends with who have something in common. You can share and be shared, which is an inspiring process and experience.

I will graduate next year, now I start to worry about my future, I don’t

know what kind of job I should work on, I see the job hunting information from

the Internet, I don’t know whether I should take the chance. My teacher told me

that I need to take every chance, so that I will find what I want.

Graduate season is a sad and busy season. After four years’ study, it is

time to say goodbye to your classmates, the building of the deep relationship

makes it hard to say goodbye. At the same time, finding a job is the most

important thing for students, because they need to find their places in the

society. As there are many opportunities for graduate students, they always

don’t know how to do.

I have learned that I should take every chance when they job offer comes,

even though I need to go to a far place to get the interview and there will be

some money that I need to spend. But I will learn many things and become more

competitive.

When the opportunity comes, I will take no hesitation to seize it.

When we attend university, the moment we choose our major, which most

probably means the job we will work on in the future. Some people choose to work

on what they like and give up doing something that is related to their major. A

girl made such decision. She learned music in the top university. After

graduated, she found that she liked to be away from the noisy city, so she chose

to run that farm his father left to her. It seemed so ridiculous for such an

excellent person to live the ordinary life. While to everybodys surprise, the

girl found her way to begin her new career. She fell in love with making all

kinds of desserts and she made this hobby famous. She posted the picture on the

Internet and became famous. She even showed on the TV. Sometimes choose another

life can be positive.

Environmental Pollution

the problem of pollution, cause, artificial substances, release, waste products, industrial production, consumption of goods, bring it under control, agriculture, chemicalsubstancea.

Environmental Pollution

I read a piece of news recently. It says that in Japan marly businessmen ave selling fresh air to customers.and now it is becoming more and more popular. Why? --Fresh air is getting less and less in Japan, and so is it in the U. S. A.

In fact, environmental pollution is a very serious problem the whole world is facing.

it is mainly caused by the waste products released from artificial substances, industrial

production and increased consumption of goods. Bedsides, the use of chemical substances

in agriculture also causes environmental pollution.Look at the sky, you can see that dense smoke is being released from the high and big chimneys; those dirty and poisonous substances are flowing into the rivers that we use for drinking water and millions of tons of waste products are heaping around us.

How to change this condition? More and more countries are trying to work out some effective means to bring it under control, but no great success has been made.

环境污染

最近我读了一则消息说在日本，许多商人向顾客出售新鲜空气，现在这种情况越演越烈。为什么呢? 因为在日本新鲜空气越来越少，在美国也是如此。

事实上，环境污染是整个世界正在面临的一个严重问题。这主要是由于人造物质，工业生产过程中所产生的废料以及消费商品的增长造成的。另外，在农业中使用化学物品也造成了环境污染。看看天空，你可以看到浓烟从高大的烟囱中释放出来，这些脏而有毒的物质流入我们赖以饮水的河流，数百万吨废物正堆积在我们周围。 中国大学排名

怎样改变这种状况呢？越来越多的国家正在试图拟定出一些有效措施控制环境污染，但至今成效不大。

Today, as the development of the medical, people can slow down their aging. As for the celebrities, they use the developed technology to keep young, seeing their unchangeable faces in the screen for so many years, the audience also want to imitate the celebrity, they believe that by using the developed technology, they can keep young all the time. While in my opinion, the way to keep young is to hold a young heart, some people look young outside, but in their hearts, they are old enough and refuse to keep pace with the time. While for another group, even they have wrinkles, they are curious about all the things and are willing to change. My grandpa is old, but he knows all the fashionable things, sometimes I have to ask him for the new things. The young heart is the way to keep young forever.

今天，随着医疗的发展，人们能够延缓衰老。对于名人来讲，他们使用高科技来保持年轻，看到他们常年在屏幕上保持不变的容颜，观众也想要模仿名人，他们相信通过使用高科技就能一直保持年轻。然而在我看来，保持年轻的方法就是拥有一颗年轻的心，一些人表面看起来年轻，但是在他们的心里，他们足够的老，并且拒绝去与时俱进。对于另外一些人来讲，虽然他们有皱纹，但是他们对一切都保持好奇，并且愿意去改变。我的爷爷年纪大，但是他对一切时尚的东西都了如指掌，有时候我不得不问他关于新的事物。年轻的心是永葆青春的方法。

Seasons have colors. What are the four seasons colors like?

Spring is green. When spring comes, trees begin to bud and grass begin to

grow. It is really a green world, and it is also the color of hope.What about

summer? When I look at flowers of almost all kinds in blossom, I know that the

color of summer is red.Compared with summer, autumn is totally different color,

especially in the north of our country. The rice in the fields and fruits on the

branches are the signals of autumn. It is the color filled with ripeness. Gold

is the symbol of harvest.Winter is the world of snow. Therefore, white is the

color of winter.

Seasons have colors and the changing of the four seasons makes the land

colorful and energetic.

Air pollution is one of the major problems of the modern world.

A great deal of energy is needed to run the factories of modern industrial nations. Automobile, trains, planes and busses need energy, too.

Nearly all of this energy is produced by burning fuels. The burning produces wastes, some of which remain in the air, causing air pollution.

Scientists are finding ways to stop air pollution especially in big industrial areas and densely-populated cities.

They are studying new ways of generating electricity that may be less damaging to the environment. In the meantime, many power plants are being modernized to give off less polluted material.

Also, engineers try to design and locate new power plants to do minimum damage to the environment.

However, it may be that we still have a long way to go before we have a "clean" world.

Nearly all of the countries are trying hard to prevent and control air pollution. There indeed seems to be no end to tasks that environmentalists will be required to do.

People will continually find new ways to control pollution.

Dear Editor：

I am writing this letter to draw your attention to the deteriorating situation of “white pollution” in some regions despite the implementation of restrictions on the use of plastic bags.

In order to put an effective stop to the wide spread of “white pollution”， I would like to make the following suggestions . Firstly， the price of plastic bags should be further raised; Secondly ， special government departments should be established to supervise the making and using of plastic bags to ensure they are used when really needed.

I hope my suggestions would be of help and thank you for your attention.

Generally speaking, the wise regard these sad things as their valuable

experiences which are indispensable in their life. Whats more, never do they

have sadness haunt themselves. Quickly, they get rid of sadness and find new

pleasures of life. Thus, their life always seems so fine. On the contrary, some

pessimists always have sadness haunt them. Their mind always wanders into past

sad events, which results in their moodiness and vexation daylong, and even

causes sleepless nights, poor diets, frequent headaches, etc. Obviously, none of

these results is what we want.