网络购物利弊英语作文中考(推荐20篇)

As time goes on,going surfing on the Internet become more and more popular.It is a new phenomenon and sounds an alarm (for online security ).

Network security cover anti- virus , network security and hacker protection . Together with the technology of Access Control , redundant backup recovery and network security , it makes an allround security system . Many companies devote to the information security technology and product research and development , production and sales , providing advanced network security solutions . Firewall just is an effective measure of network security .

参考范文：

Each of us should stay healthy, which is the foundation of our activities. Here are some ways to stay healthy.

First, we should spend one to two hours a day in regular exercise; try to walk instead of ride. Second, we should eat some healthy foods such as vegetables, fruits and so on. They are able to help us maintain a healthy body. When we are in trouble, try to relax our mood, listen to the soft music. It also enables us to maintain a good health. Finally there is a good sleep can also assure us a healthy body. We should sleep seven to eight hours a day to maintain adequate sleep. If we can do follow these advice, I believe we can have a healthy body, a better life.

参考译文：

我们每个人都应该保持健康,这是我们活动的基础。这里有一些方法来保持健康。

首先,我们应该每天花一两个小时在经常锻炼;尽量步行而不是骑。第二,我们应该吃一些健康的食物比如蔬菜、水果等等。他们可以帮助我们保持健康的身体。当我们陷入困境,试图放松我们的心情,听轻柔的音乐。它还能使我们保持身体健康。最后有一个好的睡眠也能保证我们一个健康的身体。我们应该每天睡7到8小时,保持充足的睡眠。如果我们可以遵循这些建议,我相信我们可以有一个健康的身体,更好的生活。

With the widespread of computer, more and more people tend to use Internet to get information and learn knowledge, especially, many educational agent use online class to teacher their students. Many people think it is convenient for students to obtain knowledge by online education and can save students lots of time spending on traveling between home and school. Some people think students can’t focus on studying by online education. In my opinion, we can benefit a lot by online education.

[关于网络英语作文

春节习俗与计划，如何过2009年的春节，假如你是LINGLING给外国朋友JHON发一份电子邮件。

The spring Festival

Dear Jhon :

The Spring Festival is the most important festival in China. It is on January 1st according to the Chinese lunar calendar(中国的农历). It’s China’s New Year’s Day. So usually a month before the festival people begin to buy food clothes and decorations(装饰) for houses.

About a week before the festival housewives are busy preparing the new year dinner. And they will do a lot of washing and cleaning in the houses. People who are far away on business are hurrying to return home for the new year’s family reunion（团聚）.

On New Year Eve each family will gather tighter eating talking and watching TV for almost the whole night. And there will be some interesting programmes on TV. The children are the happiest of all because they can get presents from parents or grandparents.

On Lunar New Year’s Day after getting up people will eat dumplings. When they meet their neighbours or friends they’ll say: “Happy New Year!”

I am ready to spend with together my family on the Spring Festival I’am going to see my grandparents and friengs . I ’m going to Diseyland in HONGKONG with my parents I will revise lessinos do exercise every day help the old and children .Wellcom to China. Waiting for your e -mail.

Yours

Lingling

参考范文：

We talked about the advantages and disadvantages of internet shopping these days. Some students think its very convenient for us to go shopping on the internet. The shops on Internet ，for example taobao.com, 360buy.com are open for almost 24 hours a day, so we can buy something we want at any time if we like. Whats more, we neednt to wait in a queue.

However, some students disagreed with them. We cant see the things while we are shopping. So we are not sure whether they are good or not.. Besides, we cant enjoy the happiness of shopping with our friends.

Since the childhood, I would cultivate the good habit of reading. The good habits can help me to increase knowledge, make I am not a tunnel vision.

The so-called "reading is the key to knowledge". While reading, if you have any new words, I will be looking for "teacher" dont talk to me to solve problem, so I know the increasingly rich vocabulary.

Old saying: a scholar need not leave his home to know whats going on in the world. In spare time, I also read newspapers. Reading newspapers can not only let me know what happened at home and abroad, can also be vigilant about everything around them. Newspaper has a "student is in the heavens and the earth" to let the students write. I can earn money not only can read the article written by other students, so as to improve their writing ability, so why not?

In addition, I also read some illustrated books. These books can bring me entertainment, can let me temporarily put the heavy homework and all troubles were thrown to the outside of the cloud nine. It can make me happy, easily absorb knowledge.

Because I have the habit of reading, parents often buy all kinds of books for me. Whenever my birthday, because friends know my hobbies, so receive gifts, for the most part, are books. Over time, my collection of books, in the study almost doesnt even have the location of the station! The family called my study "little library".

The book was my companion! My friends, let us to cultivate the good habit of reading. It will specific will benefit you.

从小，我就培养了阅读的好习惯。这好习惯能帮助我增加知识，使我不至于成为井底之蛙。

所谓“阅读就是开启知识宝库的钥匙”。在阅读时，要是遇到任何的生字新词，我便会找“不说话的老师”为我解决难题，所以我认识的词汇日益丰富。

俗语说:秀才不出门，能知天下事。在空闲时，我也会阅读报章。阅读报章不但能让我知道国内外所发生的事，也能对周遭的事情提高警惕。报章里头设有’’学生天地’’让学生们投稿。我不但能从中赚取稿费也能阅读其他学生所写的文章，从而提高自己的写作能力，何乐而不为呢?

此外，我也会阅读一些图文并茂的图书。这些图书能带给我娱乐，能让我暂时把繁重的功课及一切烦恼都被抛到九霄云外。它的却能让我快乐地，轻松地吸取知识。

由于我有阅读的习惯，因此父母常买各式各样的书籍给我。每当我生日时，由于朋友都知道我的爱好，所以收到的礼物绝大部分都是书籍。久而久之，我的藏书汗牛充栋，书房里几乎连站的位置都没有了!家人都称我的书房为“小小图书馆”。

书本真是我的良伴!朋友们，且让我们一去培养阅读的好习惯吧!它肯特定会使你受益无穷。

文章摘要：1. 遇见你的那一刻，世界轰然倒塌；两人抬起头有点不相信的盯着我。英语如何写出中考高分作文儿子出院那天，已经夕阳西下了，他笑了笑对儿子说：乖啊，不怕，有爸爸呢，我还有办法。关于事业:没有什么高低贵贱之分,人人为我我为人人,只要合法,能干什么就干什么,口袋没钱最丢人,死要面子活受罪的事千万别干.！

①文体：记叙文。

②要点：what → when →how → why → hope and plan for the future.

③时态：一般现在时，一般过去时，一般将来时的自然变化。

内容具有开放性，但它也是“控制性”的写作试题，因此不能随意发挥，要善于抓信息，写完要点。选用这两篇学生真实习作，一是因为他们选材相同，二是因为他们都是英语成绩优秀的同学。同学B灵活使用连词so...that，so，little by little，when，so that等，恰到好处地使用新句型和短语used to，became interested in，come true......等，使内容丰富，读起来优美流畅。其实这些表达同学A也会，只是缺乏技术加工。通过这两篇作文点评，同学们便能悟出其中的奥妙。

四、培养途径

1.根据老师布置的写作内容，独立完成一篇写作。

2.与同伴合作，交流自己的写作，通过交流找出各自作文中写得好的地方和优美的句子，合作创造一篇新的文章，供大家欣赏。

3.找老师点评，请求老师指点，尤其是怎样润色。

4.自己纠错，写下反思。

五、备考演练

缙云山是重庆著名的游览胜地，每天有大量的游客。请你根据下面提供的信息写一篇报道，说明现在的游客在环境保护方面的变化。

写作要求：

1.词数在100左右。

2.条理清楚，语句通顺。

3.开头已写好，但不计入总词数。

Jinyun Mountain is a famous place of interest ...

趁现在，没有孩子，没有牵绊，我也不贪图他什么，该是离婚最好的时机吧；他还能自己走路，朋友却已经站不起来了。英语如何写出中考高分作文12、诚实是上策。他们用钱去做坏事!多么痛的领悟，你曾是我的全部，只愿你挣脱情的枷锁 ，爱的束缚，任意追逐，别再为爱受苦。最后只能采取自愿加班的方式。

Recently, Internet is more and more popular among people; meanwhile people are increasingly cheated by the information on it. So, can we trust the information that possibly is not very real? There is no denying that we must be careful about the Internet.

First, we must carefully distinguish the information between right and wrong. Although it’s difficult, we also have to make it. We can search specific information from database of the government. Secondly, once connected to money, we must be cautious about it. Thirdly, when we look for jobs from Internet, if they ask us for money, we can’t listen to them or give them money. It is a trick to a great extent. But some information is real and we can believe it.

As far as I’m concerned, information on the Internet is a double-edged sword. We must remain skeptical of the Internet information.

our city is a new and developing city, and was built at the beginning of 1980s. the infrastructure for water, gas, electricity and other energy in this area is complete and sufficient.

from here one can travel to any place by sea, by air or by land. and there is a highway leading to the capital, beijing. besides there are many other advantages for the investors to work here. for example, the areas around this city are rich in natural resources.

the public order is very nice and so on. the most impor ant. thing is that the government of this city supports foreign investors in many respects. in a sentence, this city is filled with enthusiasm and vigor. it is a good place for investors.

现在全世界都在倡导“低碳生活”(low-carbon life)，即：降低二氧化碳的排放，采取低能量、低消耗、低开支的生活方式。低碳生活对我们大家都有好处，请你写一篇短文向一家英文报社投稿。内容包括：你的具体做法、你的感受以及建议。

提示词语：be good for, everyone, ride a bike, think, make a difference, environment, suggest, reuse

★ 范文

Low-carbon life is good for everyone. To help with the environment, I always walk or ride a bike to school instead of taking a car. Besides, I will try to use things that can be recycled and I never forget to turn off the lights when I leave the classroom. I think it’s my duty to live a low-carbon life. And even the simplest activities can make a real difference to the environment. So I suggest we should reuse books as long as possible. And we’d better not spend much money on expensive clothes. If everyone does something for the environment, I believe the earth will be a better place.

With numerous technological advances,various kinds of media have been well developed. as a result,an increasing number of people are fond of purchasing goods with the help of media,such as newspapers,radio stations,Tv stations and the internet.

As we know, every coin has two sides and shopping via media is no exception. on the one hand,it saves much time,money and effort to purchase goods through media since you do not have to go to the shops in person.

Besides,you can choose what you want from an enormous variety of goods on display.On the other hand,you may be cheated sometimes by the false information and suffer a considerable loss.

As far as I am concerned, shopping via media brings great benefit to our life and our economy on the whole.At the same time, we need strengthened supervision over the information released via media.In this way,we can reap more benefits from shopping via media and reduce the possible harm to a minimum.

My Low-carbon Life

The environmental pollution is worse and worse today. Many trees are cut

down, and water and air are polluted. As a student I try to have a low-carbon

life to save energy and reduce pollution.

Firstly, I often walk to school. It can reduce air pollution. Secondly, I

always turn off the lights and fans when leaving the classroom. Thirdly, I

always make full use of paper and other school things and never waste water.

I wish more students to join me and make the earth more and more

beautiful.

导语：近年来，互联网正以惊人的速度普及。一些人认为，互联网给我们带来很多好处，但另一方面，也有许多人强烈主张，其弊端也不容忽视。下面是yuwenmi小编为大家整理的优秀英语作文，欢迎阅读与借鉴，谢谢!

In recent years,the Internet has been gaining its popularity at an amazing rate.Some people suggest that the Internet brings us a lot of benefits.But on the other hand,there are also many people who strongly advocate that its drawbacks should not be ignored.It is quite understandable that people from different backgrounds put different interpretations on the same issue.

Those who favor that the Internet has many advantages give their reasons as follows.In the first place,the Internet brings us great convenience and efficiency.For example,we can send E-mails to our friends in other countries in a few minutes while sending a traditional letter takes us at least a week and cost much.In the second place,we can make friends with people from all parts of the world.It overcomes the geographical barriers and makes the world smaller.Furthermore,the Internet accelerates the flow of information and spreads education to all corners of the globe.We can have easy and quick access to the latest information worldwide.

However,the other side of the coin voices its strong opposition,saying that the Internet has many weaknesses.For one thing,it can easily lead to psychological problems.An internet-addicted person tends to be isolated,self-centered and unsociable.For another,there is a sharp rise in the number of cyber crimes.More and more financial crimes such as money laundering are committed via the Internet.In addition,it also has negative impacts on young people because there are a lot of obscene and violent contents on line.

There is probably a litter bit of truth in both arguments.For my part,I completely agree with the latter view that the Internet has more disadvantages than advantages.It gives rise to people’s mental problems.It results in various computer crimes.What is more,it is harmful to the growth of the young.Something should be done as soon as possible to protect people from the negative effects of the Internet.

【参考译文】

近年来，互联网正以惊人的速度普及。一些人认为，互联网给我们带来很多好处，但另一方面，也有许多人强烈主张，其弊端也不容忽视。它是来自不同的背景，提出不同的解释，对同一个问题人们完全可以理解。

那些认为因特网有很多好处给他们的理由如下：首先，互联网给我们带来了极大的方便和效率。例如，我们可以发送电子邮件给我们的朋友在其他国家在几分钟内同时发送一个传统信需要我们至少一周的费用多。第二的地方，我们可以和来自世界各地的人交朋友。它克服了地域的障碍，使世界变小了。此外，互联网加速了信息的流动和教育波及到世界各个角落。我们可以方便快捷的访问到全世界最新的信息。

然而，硬币的声音强烈反对对方，说互联网有很多缺点。首先，它导致了心理上的问题。一个沉迷于网络的人往往是孤立的，以自我为中心，不合群。另一方面，在网络犯罪数量急剧上升，越来越多的金融犯罪通过互联网。此外，它还具有对青少年的负面影响，因为在网上有很多淫秽和暴力的内容。

这两种观点可能都有点道理，就我而言，我完全同意，互联网弊大于利的观点。它增加了人们的心理问题，导致各种各样的电脑犯罪。更重要的是，它是对年轻人的成长是有害的。应该尽快做好保护人们不受网络的负面影响。

Nowadays, there is a widespread concernover/debate about 中心议题. Undoubtedly, there areboth advantages and disadvantages in the Internet .

Generally speaking, it is widely believed there are several positive aspects as follows. Firstly, 优点一. And secondly 优点二.

However, as a popular saying goes, every coin has two sides, and the Internet is noexception. The negative aspects of the Internet are also quite apparent. To begin with, 缺点一. In addition, 缺点二.

To sum up, we should try to bring the advantages of the Internet into full play, and reduce thedisadvantages to the minimum at the same time. In that case, We will definitely make a betteruse of the Internet .

there is no doubt that dr. sun yat-sen is the greatest man that i ever known in my whole life. he set up the republic of china, so we call him our national father.

he was devoted to the revolution about forty years. his aim was to liberate china from the hands of the manchu dynasty. he had not met with result, but he was not discouraged at all. as a result, he accomplished his end in the long run.

to sum up, his strong will and indomitable spirit are worth our worship and imitation (are worth our worshiping and imitating).

译文:

无疑的，中山先生是我一生知道的最大的人物。他建立中华民国，所以我他为我的国父。

他致力革命凡四十年。他的目的是清朝手里解放中国。他曾遭遇屡次的失败，但他却一点也不灰心。那是不需说的。结果，他终于达到目的。

总而言之，他坚强的意志和不屈不挠的精神(是)值得我们的崇拜和仿效。

When it comes to November 11, what’s on your mind? Well, as to the old generations, it’s only an ordinary day; however, the young generations will consider it as the Singles’ Day as well as the on-line shopping carnival. In fact, on November 11th, 2013, Tmall and Taobao (the biggest Chinese online shopping platform) has sold out more than 35 billion Yuan goods, this data has astonished the media at home and abroad. Apparently, people have more interests on cyber shopping than spend the night with their single friends. Some home media even suggest that November 11th should be the Chinese on-line shopping carnival.

当人们提到11月11日，你想到了什么?对于老一辈的人来说，这一天和平常一样;然而，对于年轻人来说，这天不仅仅是“光棍节”，也是网络购物狂欢节。事实上，在今年的双11，天猫和淘宝(中国最大的网络购物平台)卖出了价值高达350多亿元的商品，这一数据惊呆了国内外的媒体。显而易见，大家对网络购物的热情超出了与单身好友共度“光棍”节的兴趣。有些国内的媒体甚至建议每年的11月11日应该是中国的网络购物狂欢节。

Comparing with the traditional shopping, the cyber shopping has more distinguish features, which quite fit the young generations’ taste. People do not need to go outside, just click their mouse, the goods will be home. The best part is you can do it anywhere, anytime. All you need is a credit card. What we can predict in the future is that on-line shopping is not going to fade away, instead, it will boost like the mushrooms after spring rains.

和传统的购物相比，网络购物有着更为明显的特点，这更符合年轻人的口味。人们不需要外出，只需点击一下鼠标，商品就会送到家。最棒的是你可以在任何时间任何地点进行购物。你只需一张信用卡。我们可以预测到在将来，网购不会淡出我们的生活，它就像雨后春笋，不断增长。

一、…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.

张老师是我曾经遇到最仁慈的教师。

*二、nothing is + -er than to + v ;nothing is + more + 形容词 + than to + v

例句：nothing is more important than to receive education.

没有比接受教育更重要的事。

*三、…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。

*四、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。

*五、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。

*六、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。

七、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。

八、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. 我们必须种树的原因是它们能供应我们新鲜的空气。

*九、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。

十、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 =at no time = in no case = in no sense = under no circumstances = not ...in the least 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。

十一、the + -er + s + v, …the + -er + s + v…

the + more + adj + s + v, …the + more + adj + s + v …(愈……愈……)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。

十二、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。

*十三、…enable + object(受词)+ 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。

*十四、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。

十五、it is time + s + 过去式 (该是……的时候了) 例句：it is time 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。

十六、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。

*十七、there is no one but…(没有人不……) 例句：there is no one but longs to go to college.

没有人不渴望上大学。

*十八、be + forced/compelled/obliged + to + v (不得不……) 例句：since the examination is around the corner, i am compelled to give up doing sports.

既然考试迫在眉睫，我不得不放弃做运动。

*十九、it is conceivable that + 句子(可想而知的) 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。

二十、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。

My school life is very interesting and happy. I like English best of all the subjects in the school. Because it can make me know something new about the world and make friends with a lot of foreigners. I often play basketball with my classmates at school and surf the Internet at home . I will study hard at other subjects from now on in order that I can enter a better high school.

我的学校生活是非常有趣和快乐。我最喜欢英语在所有的科目在学校。因为它能让我知道一些新的关于世界和结交了很多的外国人。我经常在学校和在家里上网，我的同学们打篮球。我会努力学习其他科目从现在开始，我可以进入一个好的高中。

2015中考将至,目前距2015 中考仅有几个月，因此现在是复习的关键时刻，在此YJBYS为了让考生们了解更多的中考试题，以为今年的中考取得更好的成绩。

如果一百份试卷里都是清一色的“i think”简单句,那阅卷人读起来将会多么的乏味,乏味至极的阅卷人又如何能给得出高分?所以,我们在写句子的时候,要尽可能的变换句式和结构,让文章富于变化,错落有致。具体地说:中考作文中,我们可以尝试使用更多的复合句,主要是宾语从句、状语从句以及尝试变化语态。例如,2008年中考北京卷作文题,以汶川地震为背景描写一个叫做林浩的小英雄的故事以及自身感受。其中有一句细节描写叫做“他救出了自己的同学并步行七小时到达安全地点。”例文给出的句子是“he saved two of his classmates. then he walked for seven hoursto safety。” 这句话我们可以改写成为一个从句:saving two of his classmates, lin haowalked for seven hours to safety。

如果再加上语态的变换,还可以改写成:being saved from the earthquake, two of linhao’s classmates walked for seven hours to safety with lin hao。这样的变化在作文中能够主动使用的话,一定会增加阅卷人的青睐,从而给你的文章增加获胜的筹码。

[适用话题]“财富”“我有一个梦”“慈善”“奉献”等。

Money Everything?(金钱就是一切吗?)

At present some people think that money is everything. They say that you can do everything if you have money. You can live in a beautiful house, keep a luxurious ear and have all sorts of delicious food.

I dont think so. Indeed, money can buy a lot of things we need. But there are many, many wonderful things in the world that cannot be bough/; with money.

For example, knowledge cannot be bought with money. One cannot be rich in knowledge unless he studies hard. Time cannot be bought with money, either. Who can buy even a second with money?

There are still many other things that cannot be bought with money: health,life, happiness,friendship, love and so on. Just think, if a person hasnt these things at all, is the money still useful?

Now, do you think money is everything?

金钱就是一切吗?

近来，有些人认为钱就是一切，他们说，要是有了钱，你就可以做任何事情，你可以住舒适的房子，坐豪华的轿车，吃可口的饭菜，

我不这么认为。的确，钱可以买到我们需要的许多东西，但是，世界上还有许多美丽的东西用钱是买不到的。

例如，知识是买不来的，一个人要想获得丰富的知识，只有通过艰苦的学习。时间用钱也是

Life, environmental pollution continuously affects our lives. Such as: polluted air, rivers and garbage pollution, etc., has seriously damaged our living environment.

Rivers are polluted, the creature will not be able to survive in the water, also cant use it to irrigate crops, the human will not eat fresh food. If same, groundwater contamination, people will drink less than clean water, humans will get sick, poisoning, and it may even die. So, no one should be put on the possible environmental pollution of waste into the river.

Air is a guarantee to the survival of all living creatures. If the air is polluted, all creatures will live in the "gas", disease and all kinds of disasters will be the humanitys greatest enemy. Last, mankind will perish. Visible, clean air is how important!

Garbage can be seen everywhere in our daily life, the visible human bad habits - littering behavior is really too serious. Random pile up garbage can cause great harm to the environment, such as: air pollution in a breeding ground for germs, sexually transmitted diseases, and river and so on.

The pollution was terrible! To prevent the pollution, we must care for the environment, protect the earth, to stop all the pollution of the environment.

生活中，环境污染不断地影响着我们的生活。比如：被污染的空气、河流和垃圾污染等等，已经严重地破坏了我们的生活环境。

河流被污染了，水中的生物将无法生存，也不能用它浇灌庄稼，人类将吃不到新鲜的食物。同样，地下水如果被污染，人们将喝不到洁净的水，人类将会生病、中毒，甚至可能会死亡。所以，任何人都不应该往河里投放有可能污染环境的废弃物。

空气是所有生物赖以生存的保证。如果空气被污染了，所有生物将会生活在“毒气室”一样的环境里，疾病和各种灾难将会是人类最大的敌人。日久天长，人类就会灭亡。可见，洁净的空气是多么重要啊!

垃圾在生活中随处可见，可见人类的坏习惯——乱丢垃圾的行为实在太严重了。随意堆放的垃圾会对环境造成很大的危害，例如：滋生病菌、传播疾病、污染空气以及河流等等。

这些污染真是可怕呀!要预防这些污染，我们一定要爱护环境，保护地球，制止一切污染环境的行为。