文档库 最新最全的文档下载
当前位置:文档库 › 【最新版】英语作文万能句子:段首万能句子word版本 (2页)

【最新版】英语作文万能句子:段首万能句子word版本 (2页)

【最新版】英语作文万能句子:段首万能句子word版本 (2页)
【最新版】英语作文万能句子:段首万能句子word版本 (2页)

【最新版】英语作文万能句子:段首万能句子word版本

== 本文为word格式,下载后可方便编辑和修改! ==

英语作文万能句子:段首万能句子

1.关于……人们有不同的观点。一些人认为……

There are different opinions among people as to ____ .Some people suggest that ____.

2.俗话说(常言道)……,它是我们前辈的经历,但是,即使在今天,它在许多场合仍然适用。

There is an old saying______.It“s the experience of our forefathers,however,it is correct in many cases even today.

3.现在,……,它们给我们的日常生活带来了许多危害。首先,……;其次,……更为糟糕的是……

Today, ____, which have brought a lot of harms in our daily

life.First, ____ Second,____.What makes things worse is that______.

4.现在,……很普遍,许多人喜欢……,因为……,另外(而且)……

Nowadays,it is common to ______.Many people like ______ because ______.Besides,______.

5.任何事物都是有两面性,……也不例外。()它既有有利的一面,也有不利的一面。

Everything has two sides and ______ is not an exception,it has both advantages and disadvantages.

6.关于……人们的观点各不相同,一些人认为(说)……,在他们看来,……

People's opinions about ______ vary from person to person.Some people say that ______.To them,_____.

7.人类正面临着一个严重的问题……,这个问题变得越来越严重。

Man is now facing a big problem ______ which is becoming more and more serious.

英语作文万能句子

英语作文万能句子 开头常用万能句子 1.Depending on personal experience personal type and emotion concern we find that some people hold the idea of... while others prefer... 基于个人经历、个性类型和情感关注的不同,我们发现有人持……的观点,而另外一些人则更喜欢…… 例句:Depending on personal experience personal type and emotion concern we find that some people hold the idea of living in the small town while others prefer the big city. 基于个人经历、个性类型和情感关注的不同,我们发现有人喜欢生活在小 城镇,而另外一些人则更喜欢大城市。 2.When asked about... the vast/ overwhelming majority of/ most/ many/ quite a few people say/ think/ believe/ answer that... But... 当被问及……时,多数(大多数、许多)人认为(回答)……但是…… 例句:When asked about choosing living place the vast people think that living in the big city is perfect. But I think living in the small town is the better choice. 当被问及在选择居住地方时,多数人认为居住在城市是很棒的。但是我觉 得住在小城镇更好。 3.When it comes to ... some think/ hold/ believe... 当提及……时,有人认为…… 例句:When it comes to sports some believe basketball is the most popular one. 当提到运动时,有人认为篮球是最受欢迎的。 4.It has become apparent to us that... 对我们来说,……已经变得很明显了

高中英语作文万能句子大全

高中英语作文万能句子大全 【谓语结构】 1、行为动词(表示动作和状态的词)原形单三过去式 2、系动词+表语(形容词为主) feel/taste/smell/look/sound+形 be+形/名/介短/数 get/turn/become+形(名) keep+形 3、情态动词+行为动词原形 can/may/must/need(not)+v 4、助动词+行为动词 be+ving do not/does not/did not/+v have/has/had+过去分词 be+过去分词(被动语态) will/would/be going to+v原 【五种简单名结构】 1、主语+不及物动词 2、主语+及物动词+宾语 3、主语+系动词+表语 4、主语+及物动词+间接宾语(人)+直接宾语(物) 5、主语+及物动词+宾语+宾语的补足语 说明:及物和不及物动词就是句子的谓语,不外乎以上四种谓语结构 【主要连接词】 常见的有 when before after as soon as 表示“反意见”: But,however 然而,如:③Jim is intelligent but lazy. 表示“举例示范”: For example, in other words,换句话说 常用的名言和谚语 Better early than late. 宁早勿迟

It is never too late to learn. 学习永远不嫌晚。 Where there is a will, there is a way. 有志者事竟成。 Health is better than wealth. 健康胜于财富。 Parents are the first teachers of the children. 父母是孩子的第一任老师。 Time waits for no man. 时不待人。 Knowledge is power. 知识就是力量。 【开头句子】 As we know, we students are very tired because of study. Just as the saying goes: “Every coin has its two sides”,television has both advantages and disadvantages. 正像谚语所说:“任何硬币都有两面”,电视即有优点也有缺点。 The problem of ..is important/serious/..to us. Now let me talk something about it. 【结尾句子】 In a word,I think I will have a good time in … I believe everything will be better in the fulture. I am sure the world must be better if we all give our love to others./if we all make a contribution to it. Let us do it hard/try our best to do it. 【重要词组】 be good at be late for be worried about be interested in be busy dong sth be afraid of on one’s way to+地点 have a good time have a rest have sth done look after look over look like look the same look at look+形容词 get ready for Get on/off get up get down get to

英语作文万能句子:开头句型万能句子

英语作文万能句子:开头句型万能句子 2017-06-161.Asfaras…isconcerned就……而言 2.Itgoeswithoutsayingthat…不言而喻,… 3.Itcanbesaidwithcertaintythat…可以肯定地说…… 4.Astheproverbsays,正如谚语所说的, 5.Ithastobenoticedthat…它必须注意到,… 6.It'sgenerallyrecognizedthat…它普遍认为… 7.It'slikelythat…这可能是因为… 8.It'shardlythat…这是很难的…… 9.It'shardlytoomuchtosaythat…它几乎没有太多的 说…10.Whatcallsforspecialattentionisthat…需要特别注意的是 11.There'snodenyingthefactthat…毫无疑问,无可否认 12.Nothingismoreimportantthanthefactthat…没有什么比这更重要的是…13.what'sfarmoreimportantisthat…更重要的是…二、衔接句型 1.Acasein pointis…一个典型的例子是… 2.Asisoftenthecase…由于通常情况下… 3.Asstatedinthepreviousparagraph如前段所述 4.Buttheproblemisnotsosimple.Therefore然而问题并非如此简单,所以…… 5.Butit'sapitythat…但遗憾的是… 6.Forallthat…对于这一切……Inspiteofthefactthat…尽管事实…… 7.Further,weholdopinionthat…此外,我们坚持认为,… 8.However,thedifficultyliesin…然而,困难在于… 9.Similarly,weshouldpayattentionto…同样,我们要注 意…10.not(that)…but(that)…不是,而是11.Inviewofthepresentstation.鉴于目前形势12.Ashasbeenmentionedabove…正如上面所提到 的…13.Inthisrespect,wemayaswell(say)从这个角度上我们可以说

英语作文万能句子

英语作文万能句子 1. We ' re often told that ......But is this really the case ? 我们经常被告知......但事实真是这样吗? 2. People used to ......however , things are quite different today . 过去,人们习惯......但,今天的情况有很大的不同。 3.some people think that ......Others believe that the opposite is true . There is probably some truth in both sides.But we must realize that ...... 一些人认为......另一些人持相反意见。也许双方的观点都有一定道理。但是我们必须认识到...... 4.Recognizing a problem is the first step in finding a solution . 认识到问题是找到解决办法的第一步。 5. It is another new and bitter truth we must learn to face . 这是一个我们必须学会面对的痛苦的新情况。 6. In short , we must work hard to make the world a better place. 简而言之,为了把世界变成更美好的地方,我们必须勤奋工作。 7.Lost time is never found again. 岁月既往,一去不回。 8.Everybody should have a dream. 每个人都该有个梦想. 9.Hope for the best, but prepare for the worst. 抱最好的愿望,做最坏的打算。 10.Failure is the mother of success. 失败乃成功之母。 11.Let's look on the bright side. 让我们往好处想吧。 1. 重点句型 1). It’s adj for sb to do 做…对某人来说… 2). … so … that … 如此… 以至于… … too … to do 太… 而不能… such … that … 如此… 以至于… 3). not…until… 直到…才… 例: I didn’t go to bed until my mother came back. 4).The reason why + 句子is that + 句子… 的原因是… The reason why he got angry was that she told him a lie. ( 他生气的原因是她对他说了谎。) 5). That is why + 句子那是…的原因

初一英语作文万能句子

初一英语作文万能句子 初一英语写作常用句型 I. 用于文章主题句 1. 不用说… It goes without saying that子句 = (It is) needless to say (that)子句 = It is obvious that子句 = Obviously, S. + V. 例:不用说早睡早起是值得的。 It goes without saying that it pays to keep early hours. 2. …是不可能的; 无法… There is no V+ing = There is no way of V+ing. = There is no possibility of V+ing. = It is impossible to V. = It is out of the question to V. = No one can V. = We cannot V. 例:不可否认的,成功的事业关键在于健康的身心。 There is not denying that successful business lies in a 1 healthy body and mind. 3. 我深信…

I am greatly convinced (that)子句 = I am greatly assured (that)子句 例:我深信预防是于治疗。 I am greatly convinced that prevention is better than cure. 4. 在各种…之中,… Among various kinds of …,… = Of all the …,… 例:在各种运动中我尤其喜欢慢跑。 Among various kinds of sports, I like jogging in particular. 5. …是很容易证明的。 It can be easily proved (that)子句 例:时间最珍贵是很容易证明的。 It can be easily proved that nothing is more precious than time. 6. …无论如何强调都不为过 … cannot be overemphasized 例:交通安全的重要性无论如何强调都不为过。 The importance of traffic safety cannot be overemphasized. 2 7. 就我的看法…;我认为… In my opinion,… = To my mind,…。

高考英语作文开头万能句子

高考英语作文开头万能句子 1.开头万能公式一:名人名言 有人问了,“我没有记住名言,怎么办?尤其是英语名言?”,很好办:编!原理:我们看到的东西很多都是创造出来的,包括我们欣赏的文章也是,所以尽管编,但是一定要听起来很有道理呦!而且没准将来我们就是名人呢!对吧?经典句型: a prober b says, “ you are only young once.” (适用于已记住的名言) it goes without saying that we cannot be young forever. (适用于自编名言) 更多经典句型:as everyone knows, no one can deny that… 2.开头万能公式二:数字统计 原理:要想更有说服力,就应该用实际的数字来说明。 原则上在议论文当中十不应该出现虚假数字的,可是在考试的时候哪管那三七二十一,但编无妨,只要我有东西写就万事大吉了。所以不妨试用下面的句型:according to a recent survey, about 78.9% of the college students wanted to further their study after their graduation. 看起来这个数字文邹邹的,其实都是编造出来的,下面随便几个题目我们都可以这样编造: honesty 根据最近的一项统计调查显荆笱蚶鲜η爰俚睦碛傻敝?8%都是假的。 travel by bike 根据最近的一项统计调查显示,85%的人在近距离旅行的时候首选的交通工具是自行车。 youth 根据最近的一项统计调查显示,在某个大学,学生的课余时间的70%都是在休闲娱乐。 five-day work week better than six-day work? 根据最近的一项统计调查显示,98%的人同意每周五天工作日。 更多句型: a recent statistics shows that … 额外奉献: As time goes by,.....随着时间的流逝 There is no doubt that...毫无疑问... As far as I'm concerned, I think....就我而言,我认为... It is said that...据说... Two heads are better than one.三个臭皮匠,顶个诸葛亮。 It is ...that...强调句 It is important for sb to do sth. there be句型 Compared with A, B is more ...与A相比,B更... in my opinion 在我看来 It is high time that we did sth.是我们做..的时候了。

英语作文万能句子

英语作文万能句子 一、开头句型 1.As far as …is concerned 就……而言 2.It goes without saying that…不言而喻,… 3.It can be said with certainty that…可以肯定地说…… 4.As the proverb says,正如谚语所说的, 5.It has to be noticed that…它必须注意到,… 6.It's generally recognized that…它普遍认为… 7.It's likely that …这可能是因为… 8.It's hardly that…这是很难的…… 9.It's hardly too much to say that…它几乎没有太多的说… 10.What calls for special attention is that…需要特别注意的是 11.There's no denying the fact that…毫无疑问,无可否认 12.Nothing is more important than the fact that…没有什么比这更重要的是… 13.what's far more important is that…更重要的是… 二、衔接句型 1.A case in point is …一个典型的例子是… 2.As is often the case…由于通常情况下… 3.As stated in the previous paragraph 如前段所述 4.But the problem is not so simple.Therefore 然而问题并非如此简单,所以…… 5.But it's a pity that…但遗憾的是… 6.For all that…对于这一切…… In spite of the fact that…尽管事实…… 7.Further, we hold opinion that…此外,我们坚持认为,… 8.However , the difficulty lies in…然而,困难在于… 9.Similarly, we should pay attention to…同样,我们要注意… 10.not(that)…but(that)…不是,而是 11.In view of the present station.鉴于目前形势 12.As has been mentioned above…正如上面所提到的… 13.In this respect, we may as well (say)从这个角度上我们可以说 14.However, we have to look at the other side of the coin, that is…然而我们还得看到事物的另一方面,即… 三、结尾句型 1.I will conclude by saying…最后我要说… 2.Therefore, we have the reason to believe that…因此,我们有理由相信… 3.All things considered,总而言之 It may be safely said that…它可以有把握地说…… 4.Therefore, in my opinion, it's more advisable…因此,在我看来,更可取的是… 5.From what has been discussed above, we may safely draw the conclusion that…通过以上讨论,我们可以得出结论… 6.The data/statistics/figures lead us to the conclusion that…通过数据我们得到的结论是,… 7.It can be concluded from the discussion that…从中我们可以得出这样的结论 8.From my point of view, it would be better if…在我看来……也许更好 四、举例句型 1.Let's take…to illustrate this. 2.let's take the above chart as an example to illustrate this. 3.Here is one more example. 4.Take … for example. 5.The same is true of… 6.This offers a typical instance of… 7.We may quote a common example of…8.Just think of… 五、常用于引言段的句型 1.Some people think that …有些人认为…To be frank, I can not agree with their opinion for the reasons below.坦率地说,我不能同意他们的意见,理由如下。 2.For years, … has been seen as …, but things are quite different now.多年来,……一直被视为……,但今天的情况有很大的不同。

大学生英语作文万能句子大全

大学生英语作文万能句子大全 1.as an old saying goes,.正如一句古老的谚语所说 2.be nothing but....不过就是... 3.from where i stand.从我的立场来说 4.give oneself a chance to.给某人一个机会去... 5.i feel sure that...我坚信... 6.is the best way to make sure that.确保...的办法是... 7.we must do our absolute best to.我们必须竭尽全力做... 8.there is no denying the fect that...无可否认. 9.nothing is more+adj.+than to+v.没有比...更重要的了 10.主语+cannot emphasize the importance of.too much 再怎么强调..的重要性也不为过 11.pose a great threat to......对..造成了一大威胁 (eg.Pollution poses a great threat to our existance.) 12.stole the spotlight from...从...获得大众的瞩目 13.touch sb.on the raw .触到某人的痛处 14.it is not uncommon that...这是常有的事儿. 15it is almost impossible to do...是很困难的 16the recent research has shown that..最近研究表明. 17...has/have no alternative but to...除...外别无选择

英语作文万能开头句

英语作文万能开头14句,赶紧收藏 天才英语人 对于英语作文,有些同学比较郁闷:作文都写不好,怎么写英语作文!俗话说:好的开端就成功了一半。”把英语作文开头写好了,一篇好的英语作文也就即将出炉了! 1 关于______ 人们有不同的观点。一些人认为________ There are differe nt opinions among people as to ___ .Some people suggest that ___ . 2 俗话说(常言道)_______ ,它是我们前辈的经历,但是,即使在今天,它在许多场合仍然适用。 There is an old saying _____ . Its the experie nee of our forefathers ,however,it is correct inmany eases even today. 3 现在,______ ,它们给我们的日常生活带来了许多危害。首先,______ 其次,______ 。更为糟糕的是________ 。

Today , ___ , which have brought a lot of harms in our daily life. First, ____ Second , _____ . What makesthings worse is that _____ . 4 现在,______ 很普遍,许多人喜欢_______ ,因为________ ,另外(而且)。 Nowadays , it is com mon to _____ . Many people like _____ because _____ .Besides , _________ 。 5 任何事物都是有两面性,_______ 也不例外。它既有有利的一面,也有 不利的一面。 Everything has two sides and _____ is not an exception , it has both adva ntages and disadva ntages. 6 关于______ 人们的观点各不相同,一些人认为(说) _____ ,在他们看来,______ People's opinions about ______ v ary from pers on to pers on .Some people say that ______ .To them ,______ . 7

英语作文万能句子

英语作文万能句子 开头常用万能句子: With the rapid growth of..., ...have/has become increasingly important in our daily life. 随着……的快速增长,……日常生活中已经变得越来越重要。 例:With the rapid growth of hi-tech skills, cellphone has become increasingly important in our daily life. 随着高科技的快速增长,手机在日常生活中已经变得越来越重要。 Recently the issue of studying abroad has been brought into focus. 近来,出过留学的问题已经成为人们关注的焦点。 One of the hottest topics many people talk about now is... 人们热烈讨论的话题之一就是…… 结尾常用万能句子: From above... 综上所述…… Therefore, it is not difficult to draw the conclusion that... 因此,不难得出以下结论…… In a word, the whole society should pay close to the problem of... Only in this way can...in the future. 总之,全社会都应该密切关注……,只有这样将来才能…… Taking into account all of these factors, we may reach the conclusion that... 考虑到所有因素,我们得出结论,…… 文章中常用句子: Some reasons can explain this trend. On the one hand,...,on the other hand,... 一些原因可以解释这一趋势。一方面……,另一方面…… There are many reasons explaining this case. As for me, I consider the following as the typical ones. To begin with,... Secondly,... Last but not least,... 有很多原因可以解释该问题。就我而已,我认为以下原因比较典型。一个是……;第二个是……;最后,…… 谚语: Knowledge is power. 知识就是力量。 Good health is over wealth. 健康是最大的财富 Nothing in the world is difficult for one who sets his mind to it. 世上无难事只怕有心人 A fall into a pit, a gain in your wit. 吃一堑长一智

英语作文万能句子大全

英语作文常用开头,中间及结尾的句子 (一)段首句 1.关于……人们有不同的观点。一些人认为…… There are different opinions among people as to____.Some people suggest that____. 2.俗话说(常言道)……,它是我们前辈的经历,但是,即使在今天,它在许多场合仍然适用。 There is an old saying______.It"s the experience of our forefathers,however,it is correct in many cases even today. 3.现在,……,它们给我们的日常生活带来了许多危害。首先,……;其次,……。更为糟糕的是……。Today,____,which have brought a lot of harms in our daily life.First,____Second,____.What makes things worse is that______. 4.现在,……很普遍,许多人喜欢……,因为……,另外(而且)……。 Nowadays,it is common to______.Many people like______because______.Besides,______. 5.任何事物都是有两面性,……也不例外。它既有有利的一面,也有不利的一面。 Everything has two sides and______is not an exception,it has both advantages and disadvantages. 6.关于……人们的观点各不相同,一些人认为(说)……,在他们看来,…… People’s opinions about______vary from person to person.Some people say that______.To them,_____. 7.人类正面临着一个严重的问题……,这个问题变得越来越严重。 Man is now facing a big problem______which is becoming more and more serious. 8.……已成为人的关注的热门话题,特别是在年青人当中,将引发激烈的辩论。 ______has become a hot topic among people,especially among the young and heated debates are right on their way. 9.……在我们的日常生活中起着越来越重要的作用,它给我们带来了许多好处,但同时也引发一些严重的问题。 ______has been playing an increasingly important role in our day-to-day life.it has brought us a lot of benefits but has created some serious problems as well. 10.根据图表/数字/统计数字/表格中的百分比/图表/条形图/成形图可以看出……。很显然……,但是为什么呢? According to the figure/number/statistics/percentages in the/chart/bar graph/line/graph,it can be seen that______while.Obviously,______,but why? (二)中间段落句 1.相反,有一些人赞成……,他们相信……,而且,他们认为……。 On the contrary,there are some people in favor of___.At the same time,they say____. 2.但是,我认为这不是解决……的好方法,比如……。最糟糕的是……。 But I don"t think it is a very good way to solve____.For example,____.Worst of all,___. 3.……对我们国家的发展和建设是必不可少的,(也是)非常重要的。首先,……。而且……,最重要的是…… ______is necessary and important to our country"s development and construction.First,______.What"s more,_____.Most important of all,______. 4.有几个可供我们采纳的方法。首先,我们可以……。 There are several measures for us to adopt.First,we can______ 5.面临……,我们应该采取一系列行之有效的方法来……。一方面……,另一方面,

英语作文万能句子:大学英语作文万能句子精选

英语作文万能句子:大学英语作文万能句子精选 1.开头万能公式一:名人名言 有人问了,“我没有记住名言,怎么办?尤其是英语(论坛)名言?”,很好办:编! 原理:我们看到的东西很多都是创造出来的,包括我们欣赏的文 章也是,所以即使编,但是一定要听起来很有道理呦!而且没准将来我们就是名人呢!对吧? 经典句型: aproberb says,“you are only young once.”(适用于已记住的名言) it goes without saying that we cannot be young forever.(适用于自编名言) 更多经典句型:as everyone knows, no one can deny that… 2.开头万能公式二:数字统计 原理:要想更有说服力,就应该用实际的数字来说明。 原则上在议论文当中十不应该出现虚假数字的,不过在考试的时 候哪管那三七二十一,但编无妨,只要我有东西写就万事大吉了。所 以不妨试用下面的句型: according to arecent survey,about78.9 the college students wanted to further their study after their graduation. 看起来这个数字文邹邹的,其实都是编造出来的,下面随便几个 题目我们都能够这样编造: honesty

根据最近的一项统计调查显示,大学生向老师请假的理由当中78%都是假的。 Travel by bike 根据最近的一项统计调查显示,85%的人在近距离旅行的时候首选 的交通工具是自行车。 youth 根据最近的一项统计调查显示,在某个大学,学生的课余时间的70%都是在休闲娱乐。 five-day workweek better than six-daywork? 根据最近的一项统计调查显示,98%的人同意每周五天工作日。 更多句型: arecent statistics shows that… 1.结尾万能公式一:如此结论 说完了,毕竟要归纳一番,相信各位都有这样的经历,领导长篇 大论,到最后终于冒出个"总来说之"之类的话,我们马上停止开小差,等待领导说结束语。也就是说,开头很好,也必然要有一个精彩的结尾,让读者眼前一亮,这样,你就能够拿高分了!比如下面的例子: Obviously(此为过渡短语), we can draw the conclusion that good manners arise from politeness and respect for others. 如果读者很难"显而见之",但说无妨,就当读者的眼光太浅罢了! 更多过渡短语: to sum up, in conclusion, in brief, on account of this, thus

高考英语作文万能句子 万能套用作文开头结尾

高考英语作文万能句子万能套用作文开头结尾 英语作文想要拿高分需要多积累些句型模板,尤其是开头结尾的万能句 型可以适当提高作文分数。 1 高考英语作文万能套用句型1.From what has been discussed above, we may safely draw the conclusion that…通过上面的讨论,我们可以得出结论...... 2.Taking into account all the factors, we may safely come to the conclusion that…考虑到所有的因素,我们可以得出结论...... 3.Judging from all the evidence offered, we may safely arrive at/reach the conclusion that…从所提供的所有证据来看,我们可以得出结论...... 4.All the evidence supports a sound conclusion that…所有的证据都支持可靠 的结论...... 5.From what is mentioned above, we may come to the conclusion that…从上面提到的,我们可以得出这样的结论...... 6.To sum up/draw a conclusion, we find that…为了总结/得出结论,我们发现...... 7.In short/brief/a word/conclusion/sum/, it is…简而言之/总之,这是...... 8.Therefore/Thus/Then, it can be inferred/concluded/deduced that... 因此,可以推断出...... 9.From/Through/According to what has been discussed above, we can come to/reach/arrive at/draw the conclusion that….从/通过/根据上面的讨论,我们可 以得出结论…… 10.It is believed that…被认为......

初中英语作文万能模板范文万能句子汇总之初中关于环保的英语作文等6个话题(含中文对照)

初中英语作文万能模板范文万能句子 篇一:初中关于环保的英语作文 为人格教育的项重要内容来抓。每个人都要履行保护环境的责任和义务。 Harmony with the environment is that we live in on Earth, who is a natural son, and not only to natural persons as the conqueror, as we all know, there is only one earth and the mountains on Earth, the animals. Plant human cells, if it damaged, destroyed nature organizations, to the eradication of mankind. Therefore, the environment must be linked with social ethics, character education and practice acts as an important element of it. Everyone must fulfil its responsibilities and obligations to protect the environment. Man and His Environment(人和环境)Man and His Environment

Throughout history man has changed his physical environment in order to improve his way of life. With the tools of technology he has altered many physical features of the earth. He has transformed woodlands and prairies into farms and made lakes and reservoirs out of rivers for irrigation purposes or hydroelectric power. Man has also modified the face of the earth by draining marshes and cutting through mountains to build roads and railways. However, man's changes to the physical environment have not always had beneficial results. Today, pollution of the air and water is an increasing danger to the health of the planet. Each day thousands of tons of gases come out of the exhausts of motor vehicles. Smoke from factories pollutes the air of industrialized areas and the surrounding areas of the countryside. The pollution of water is equally harmful. The whole ecological balance of the sea is being changed and industrial wastes have already made many rivers lifeless.

相关文档
相关文档 最新文档