英文email常用句型

第一篇：英文email常用句型

英文写作常用句型

文章开首常用句型

1) This is a general discussion today about the issue of … those who criticize… argue that… They believe that… But people who advocate… on the other hand, argue that… quite a few believe… 这是当今对于某事的普遍讨论……那些持批评意见的人……觉得…… 他们认为…… 但是那些支持者……则从另一方面，认为…… 他们中相当多的人认为……

This is a much debate nowadays over/on the problem of… those who object to… argue that…They believe that… But people who favor… on the other hand, argue that…

近来对于某某问题的辩论比较多见……那些反对……的人认为……他们相信…… 但是那些赞成的人……则相反，认为……

This is a public controversy present days as to the issue of …

当今社会在某某事件上出现公开的论战……

2) When it comes to… most / many people think / argue that…,but other people think of ( view / regard ) as …

当……事发生(来临、产生……)，很多人认为……但是另一些人却认为……

3) In recent years these is a general awareness of…..

近些年来人们普遍意识到……

In the past few years there has been a widespread realization of …

过去几年中，社会中对于……有一种广泛的认识

In recent years there is a growing feeling towards…

近几年来人们对于……的意识有所增加

4) Now people in growing (significant ) numbers are beginning (coming / getting) to believe (realize/ be aware ) that …

时下越来越多的人(很多的人)开始(越来越)相信(意识到)……

5) Now it is commonly (widely / generally) believed (thought/ felt/ accepted) that …

现在人们普遍(广泛)相信(认为、感到、接受)……

6) In the past … years there has been a sudden (dramatic / sharp) rise (increase) in …

在过去的……年中，…………上有了一个突然的(巨大的、急剧的)上升(增长)

文章结尾常用句型

1) From what has been discussed above, we may safely reach the conclusion that…

从以上的讨论，我们有把握得出这样一个结论……

Taking into account all these factors, we may safely come to the conclusion that…

考虑到上述事实，我们完全可以得出这样一个结论……

Judging from all evidence offered, we may safely reach the conclusion that…

根据所提供的事实证据，我们可以得出这样一个结论……

2) All the evidence supports a sound conclusion that …

所有事实都在支持这样一个正确的结论，那就是……

All the analysis justifies an unshakable conclusion that…

所有分析都证明了这样一个不可动摇的结论……

All the evidence confirms a just idea that..

所有证据都证实了一个想法……

3) It is high time that we placed great emphasis on the improvement of …

是时候把重点放在对……的改善上了

It is high time that we put special emphasis on the development of …

这正是我们要特别重点发展……的时候了。

It is high time that we put considerable emphasis on the increase of…

强调对于……的发展正当时了

4) There is little doubt that serious (special / immediate/ considerable) attention must be called (paid / devoted) to the problem of…

在……问题上，毫无疑问应该提起(付出、贡献)严重(特殊、即刻、相当)的注意了。

5) It is necessary (essential) that effective (quick / proper) actions (steps/ measures) should be taken to correct ( end / prevent) the tendency (situation/ phenomenon).

为纠正(终结、抑制)这种倾向(局面、现象)而采取有效(快速、适合)的措施(步骤、手段)是有必要的(非常重要的)。

论说文常用句型

1) The advantages of … outweigh any benefit we gain from …

……的利处，大于我们从……得到的任何利益

The advantages of … carry more weight than those of …

……的优点，意义重于那些……

The advantages of … are much greater than …

……的利处，比……要大的多。

2) When the advantages and disadvantages of … are carefully compared, the most striking

finding ( conclusion) is self-evident ( obvious)

如果仔细比较……的利和弊，这显著的发现(结论)就会不言自明(非常明显)

3) Although everyone believes that … I doubt (wonder) whether the argument bears close

examination / much analysis.

尽管大家都认为……，我仍然怀疑这些辩论是否能经受住细致的考验(更严格的分析)

4) Contrary to widely ( commonly/ generally) held (accepted) belief (ideas / views), I believe

( argue) that …

与广泛(普遍，通常)持有(接受)的信仰(想法、观点)正好相反，我却相信(主张)……

5) Although it widely accepted (commonly held/ generally agreed) that…, it is unlikely to be

true that…

尽管……是被广泛接受(广泛存在、普遍同意)的，但不一定真的……。

6) It is true that…, but this is not to say that…

尽管确实……，但不一定就是说……

7) Too much attention paid to … may overlook other facts…

对于……的过分重视，也许会让人忽视这样一些事实……

Too much importance attached to … may neglect other facts…

对……赋于太多的重要性，也许会让人忽略其它事实……

8) What these people fail to consider is that…

这些人们没有考虑到的是……

9) At first thought , this may seem a sound idea ,but on second thoughts, we find that …

乍一想，这可能是个很好的想法，但是如果细细考虑，我们就会发现……

At first thought, this may seem an attractive solution, but carefully weighing on the mind, we find that…

乍一看，这可能是个很吸引人的解决办法，但是经过细致权衡，我们可以发现……

解释原因,分析影响

1) Among the most convincing (important) reasons given (cited/ offered) by people for …, one

should be stressed (emphasized/ mentioned)…

在人们对……给出的(引用的、提供的)这些最具说服力(重要)的原因中，有一个需要被着重考虑(强调、提出)……

2) One may regard (view / think of ) the trend (phenomenon) as a sign (result )of …

人们应该把这种倾向(现象)当做……的信号(结果)来认为(看待、考虑)

3) The failure (change/ success/ increase) in … mainly ( largely / partly) results ( arises) from the

fact that…

……的失败(变化、成功、增长)，主要(很大程度、部分)来自(产生)于……的事实

4) There are many(several) causes (reasons) for this dramatic( significant) growth ( decline/

increase/ change) in… First…Second…Third…

很多(若干)原因导致了……的戏剧性(显著)的成长(衰退、增长、变化)。首先是……其次是……再次是……

5) A number of factors could account for ( contribute to / lead to / result in ) the change ( success

/ development/ increase/ decrease) in …

许多因素能够解释(促成、引起、导致)……上的变化(成功、发展、增长、减少)

6) It is no easy task (simple job) to find the reason for this complicated phenomenon which

involves several factors.

找到这个涉及到很多因素的复杂现象的原因并非易事(简单的工作)

阐述或论述的句型

1) We may cite (quote / mention) a single (common) example of…

我们可以举(引用、提起)这样一个(常见)的例子……

2) A recent ( new/ nationwide) study (survey/ poll) conducted (taken) at a university

indicates ( reveals/ suggests/ proves) that …

某大学里，一个近期(新的、全国性的)研究(调查、民意调查)表明……

3) According to figures (situations) released by the government…

根据政府发布的数据(形势)……

As can be seen in the findings (data) provided by an institute…

从某机构提供的调查结果(数据)可以看出……

There is (no) good evidence to show that…

有(没有)可靠证据显示……

There is little evidence against…

没有证据反对……

There is strong proofin favor of …

有强有力的证明支持…… 4)

第二篇：英文学术论文写作常用句型

学术英语常用句式Joseph Li

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)

Lack of interpersonal skills is one of the most serious defects that we have ever known about today’s college students.

缺乏人际交往技能是我们迄今所知的当今大学生的最大缺陷。

二、Nothing is + ~~~ er than to + V

Nothing is + more + 形容词 + than to + V

例句：For parents, nothing is more important than to educate children in a proper way.

没有比以一种正确方式教育孩子更重要的事情了。

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 celebrities’ privacy too much.

我们再怎么强调保护名人隐私的也不为过。

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

例句：There is no denying that the practicality of our higher education has gone from bad to worse.

不可否认的，我们高等教育的实用性已经每况愈下。

五、It is universally acknowledged that + 句子~~ (全世界都知道...) 例句：It is universally acknowledged that it is the doctor’s duty and obligation to heal the wounded and rescue the dying.

全世界都知道救死扶伤是医生的天职。

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

例句：There is no doubt that the Internet is far more convenient and efficient than the written word or other conventional means of conveying meaning. 毫无疑问因特网比书面文字更方便、快捷。

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

例句：An advantage of children’s participating in some paid work is that this practice can cultivate their independence, self-determination and sense of- 1 -

responsibility.

孩子参加有偿劳动的一个优点是这种实践可以培养小孩的独立性、自主性和责任感。

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

例句：The reason why a large number of customs have altered a great deal is that most of them are connected with some superstitious beliefs, and they cannot fit in this world with highly-developed technology.

多数旧风俗习惯都产生了巨大的改变的原因是它们大多与封建迷信有关，与现代社会格格不入。

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

例句：So pervasive are advertisements that no one can avoid being influenced by them.

广告是如此盛行，每个人都难免不受它们的影响。

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

例句：Lovely as pets are, it is by no means appropriate for city dwellers to keep them in their houses.

{by no means = in no way = on no account 一点也不}

虽然宠物很可爱，但市民在家中饲养是丝毫不妥的。

十一、The + ~er + S + V, ~~~ the + ~er + S + V ~~~

The + more + Adj + S + V, ~~~ the + more + Adj + S + V ~~~(愈...愈...) The more children are encouraged to get in touch with various aspects of society, the more comprehensive their knowledge will be.

越鼓励孩子接触社会的各个方面，他们学习的知识会更全面。

十二、By +Ving, ~~ can ~~ (借着...，..能够..)

例句：By putting the responsibility into the government’s hand, citizens can enjoy a higher level of assurance in quality.

借着将这种职责放在政府手中，市民在质量上能够享有更高程度的保障。 十

三、~~~ enable + Object(受词)+ to + V (..使..能够..)

例句：Community service programs enable the government to relieve the strain on its limited budget.

社区服务计划有助于减轻政府财政负担。

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

例句：On no account can we ignore the significance of education.

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我们绝对不能忽略教育的重要性。

十五、It is time + S + 过去式 (该是...的时候了)

例句：It is time we evaluated the roles that modern technology plays in our life from more balanced and objective perspectives.

该是我们从更加公正和客观的角度来评价现代科技在我们的生活中所发挥的作用的时候了。

十六、Those who ~~~ (...的人...)

例句：Those who think otherwise contend that computers are designed and programmed by human beings to do all the translation work in a comparatively mechanical manner.

那些持反对意见的人争论到电脑是由人设计和编程的，因此只能是较机械地进行语言翻译。

十七、There is no one but ~~~ (没有人不...)

例句：There is no one but longs to display the best self and impress others. 没有人不渴望展现最好的自我以给他人留下深刻印象。

十八、be + forced/compelled/obliged + to + V (不得不...)

例句：Only in a peaceful environment can people lay emphasis on sports events. The Olympic Games is a convincing example because it has been compelled to be cancelled several times in its history due to wars..

只有在和平的环境里，人们才有精力去重视体育赛事。奥运会就是一个很有说服力的例子，因为在历史上它由于战争而数次被迫取消。

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 with the rapid development in society and economy, competition is becoming increasingly fierce and acute.

可想而知，随着社会经济的发展，竞争将更加剧烈。

二

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

例句：It costs an astronomical sum of fund to lock up so many criminals and that’s the reason why imprisonment has imposed a great strain on the budget of a nation.

把如此多的罪犯关押起来需要耗费大量资金，那就是为什么监禁已经大大增加了国家负担的原因。

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二十一、For the past + 时间，S + 现在完成式...(过去...年来，...一直...) 例句：For the past decade or so, practical courses, such as computer and business, have gained tremendous popularity on college campuses.

过去十年来，实用性课程诸如电脑和商科在大学中普遍盛行。

二十二、Since + S + 过去式，S + 现在完成式。

例句：Since the advent of modern urbanization, people have been confronted with the dilemma whether or not they should demolish old houses and buildings that seem to have spoilt the cityscape.

自从现代城市化的进程开始之后，人们一直面临着这样一种两难的境地：他们是否应该拆除那些是否有损市容的旧房屋和建筑物。

二十三、It pays to + V ~~~ (...是值得的。)

例句：It pays to create a fair atmosphere in which both males and females cooperate and compete on an equal footing.

创造一个让男女平等合作竞争的良好环境是值得的。

二十四、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。

二十五、Spare no effort to + V (不遗余力的)

Developed nations should spare no effort to finance their economically disadvantaged counterparts.

发达国家应该不遗余力地资助贫国。

二十六、bring home to + 人 + 事 (让...明白...事)

例句：We should bring home to the masses the significance of space research. 我们应该让人们明白太空研究的重要性所在。

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

例句：Expanding population and influx of migrant workers are closely related to the problem.

人口激增与外来民工大量涌入与交通问题息息相关。

二十八、There exists the possibility of + Ving (存在...的可能性)

There exists the possibility of wronging an innocent person

有可能冤枉无辜的人。

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二十九、Due to/Owing to/Thanks to + N/Ving, ~~~ (因为...)

例句： Thanks to coeducation system, benign competition and cooperation between male and female students are rightly encouraged.

由于男女共校的教育体制，异性同学间的良性竞争和友好合作精神得到了发扬。

三

十、Only...can (只有...才能)

例句：Only in cities can children be well prepared for their future life and keep up with the trend of the world.

只有在城市里孩子们才能为他们未来的生活作好准备并与世界趋势同步。 三十

一、Leave much to be desired (令人不满意)

例句：The condition of our traffic leaves much to be desired.

我们的交通状况令人不满意。

三十

二、Have (exert, impose) a great influence on ~~~ (对...有很大的影响) 例句：Quality of citizens has a great influence on a nation’s prosperity. 国民的素质对于国家的繁荣有重大的影响。

三十

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

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

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

三十

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

例句：abortion poses a great threat to both women’s physical and mental health. 堕胎对于妇女的身心健康都会造成巨大威胁。

三十

五、do one‘s utmost to + V = do one‘s best (尽全力去...)

例句：schools should do their utmost to ensure the students’ sound growth. 学校应尽全力去确保学生的健康成长

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第三篇：英文求职自荐信常用句型

如何写好自荐信呢?写好自荐信有什么技巧吗?当然有!参考下文英文自荐信常用句型，试试写出英文自荐信常用句型!

第一段

1. I saw/heard of a vacant position of…….advertised in……

2. I wish to apply for a position as…….

3. This is the very job I am looking for……

第二段

4. I think my……are the very qualities for the job.

5. I think my……fit the position.

第三段

6. I appreciate your considering my application.

7. Your early reply will be much appreciated.

8. I look forward to hearing from you.

9. Enclosed please find my resume.

在这里，不妨阅读更多自荐信!

第四篇：英文写作中常用过渡词和句型

过渡词在文章中发挥着连接上下文的作用，学会恰当地运用过渡词会使文章连贯、流畅。

1.常用于文章开始的过渡词语和句子 (1)To begin with首先

例：To begin with, smoking should be banned in public areas."首先，公共场所禁止吸烟。" (2)Generally speaking一般地说，总体上说

例：Generally speaking, it is the best policy to spend more money on libraries."总的说来，加大图书馆的投资是良策。" (3)First of all第一，首先

例：First of all, many people in remote areas still live in poverty."第一，居住在边远地区的许多人仍生活在贫困之中。" (4)With (the development/progress/growth) of (economy/society)...随着(经济、社会)的(发展、进步、增长)... 例：With the development of society, women’s role has become more important than ever before in daily life."随着社会的发展，妇女在社会生活中比以往发挥着更加重要的作用。" (5)Recently近来

例：Recently，the problem (conflict, production) of grain shortage has become the world focus."近来粮食短缺问题已成为全球关注的焦点。"

2.常用于文章结尾的过渡词和句子 (1)In conclusion最后，在结束时

例：In conclusion, the international agreement should be made to prevent the world from war."最后，应达成国际协定使世界避免战争。" (2)In brief简言之 例：In brief, family planning is of vital importance in China."简言之，计划生育对中国具有重要意义。" (3)In a word总之

例：In a word, without mutual understanding, true friendship does not exist."总之，没有相互理解，真正的友谊是不存在的。" (4)It is high time that...到...时候了

例：It is high time that the issue were to be solved so as to promote the economic development."为了促进经济发展到该解决问题的时候了。" (5)It is only when...that...只有当...才... 例：It is only when people become the masters of the country that science can serve the people."只有当人民成为国家的主人，科学才能为人民服务。"

3.常用于表示先后次序的过渡词语及句子

(1)first, second, third...第一，第二，第三

例：First, she had studied chemistry during her sophomore and junior years. Second, she never missed a class. Third, she performed every required experiment in all her chemistry courses. Fourth, she always worked hard. Her classmates were sure that she would win top award in Chemistry during her senior year at the university."首先，她在一二年级时就选修了化学课程。其次，她从不误课。再有，她认真完成每一次化学试验。还有，她学习非常刻苦。因而同学们确信她在高年级时会获得学校化学大奖。" 1 (2)To begin with...,moreover...,finally...，首先...，此外...，最后... 例：There are a few reasons for his decision of studying law. To begin with, he is very interested in social affairs and it seems the best way to enable him to engage in these activities. Moreover, his father is a lawyer. He has always encouraged him to do something similar. Finally, he is sure he can get a job after graduation."他决定学法律有几方面的原因：首先，他对社会事物感兴趣，学习法律有助于他参与这些活动。此外，他父亲是个律师，一直鼓励他从事同样的职业。最后，他确信毕业后能找到工作。" (3)Meanwhile同时

例：Meanwhile, the better skills and knowledge children possess, the more opportunities they will be ensured." 同时，孩子们的技艺与知识掌握得越好，今后的机会就越多。" (4)since then自此之后

例：Since then, the Olympics turned out to be an instrument of peace and freedom for small nations."自此之后，奥林匹克运动成为小国争取和平和自由的工具。" (5)Therefore因而 例：Therefore, if this is included in good education that parents are seeking now, their children will be definitely ensured a bright future."因而，如果父母们在其为孩子们寻求的良好教育中加入这一点，他们的子女肯定会有一个光辉灿烂的未来。"

4.常用于表示因果关系及分析原因的过渡词语与句子 (1)As a result由于...结果

例：Her performance in college was excellent. As a result, she has got a satisfactory job."由于她在大学成绩优异，她找到一份令人满意的工作。" (2)Due to由于

例：My trip to Guang Zhou and Shen Zhen has to be cancelled due to the financial problem."由于财务问题，我去广州和深圳的旅行取消了。" (3)consequently结果，因此

例：The government was unwilling to risk a conflict with that neighboring country, and consequently, promised to sign the treaty."该国政府不愿冒险与邻国发生冲突，因此答应签署条约。" (4)One may criticize......for......，but the real cause of...lies deeper人们可以因为...批评...，但是...的真正原因在更深层次

例：One may criticize the school authorities for the fire accident, but the real reason of the accident lies deeper."人们可以就火灾事故批评校领导，但事故还有更深的原因。" (5)Among...reasons, one should be emphasized that...在众多的原因中，其中一点给予强调... 例：Among the most important reasons, one reason should be emphasized that large pieces of cultivated land have been occupied, which results in the grain shortage."在许多重要的原因中，其中一点应强调的是造成粮食减产是因为大量的可耕地被占用。"

5.常用于比较和对比的过渡词 (1)unlike...与...不同

例：Unlike oral English, written English is comparatively formal."与口头英语不同，笔头英语比较正规。" (2)In contrast...与之相比

2 例：In contrast with Tom, Mario seldom studies harder."与汤姆比，玛里奥很少努力学习。" (3)On the other hand...另一方面

例：The life expectancy in developing countries has increased during the past thirty years. On the other hand, the infant mortality has decreased from twenty percent to ten percent in the same period."发展中国家的期望寿命在过去的30年间都增长了。另一方面婴儿死亡率同期由20%下降到10%。" (4)Likewise同样

例：Plenty of food must be packed for the journey;likewise, warm clothes will also be needed."要带上旅行中吃的食品，同样也需要带上御寒保暖的衣服。" (5)similarly同样

例：If only one can make his audience understood, it seems insignificant if one makes some mistakes in his oral English; similarly, as to the audience, they are only interested in grasping the meaning, not actually mind or even hardly notice the speakers mistakes."只要能使听众听明白，在口头英语中出一些错误是无关紧要的，同样作为听众也只对讲话者的意思感兴趣，根本不介意或几乎注意不到讲话者所犯的口语错误。"

第五篇：高中英语作文必备 常用英文写作高级句型句式汇总

一.开头用语：

良好的开端等于成功的一半.在写作文时，通常以最简单也最常用的方式---开门见山法。也就是说, 直截了当地提出你对这个问题的看法或要求，点出文章的中心思想。

1.议论文：

A. Just as every coin has two sides, cars have both advantages and disadvantages.

B. Compared to/ In comparison with letters, e-mails are more convenient.

C. When it comes to computers, some people think they have brought us a lot of convenience. However,...

D. Opinions are divided on the advantages and disadvantages of living in the city and in the countryside.

E. As is known to all/ As we all know, computers have played an important role/part in our daily life.

F. Why do you go to university? Different people have different points of view.

2. 书信：

A. I am writing to you to apply for admission to your university as a visiting scholar.

B. I read an advertisement in today’s China Daily and I apply for the job...

C. Thank you for your letter of May 5.

D. How happy I am to receive your letter of January 9.

E. How nice to hear from you again.

3. 口头通知或介绍情况：

A. Ladies and gentlemen, May I have your attention, please. I have an announcement to make.

B. Attention, please. I have something important to tell you.

C. Mr. Green, Welcome to our school. To begin with, let me introduce Mr. Wang to you.

4. 演讲稿：

A. Ladies and gentlemen, I feel very much honored to have a chance here to make a speech on the subject -- A Balance Diet and Health.

B. Good morning everyone! Allow me, first of all, on behalf of all present here, to extend our warm welcome and cordial greeting to our distinguished guest.

二.并列用语：

as well as, not only…but (also), including,

A. Not only do computers play an important part in science and technology, but also play an informative role in our daily life.

B. All of us, including the teachers / the teachers included, will attend the lecture.

C. He speaks French as well as English.=He speaks English, and Frenchas well.=He speaks not only English but also French.

D. E-mail, as well as telephones, is playing an important part in daily communication.

三.对比用语：

on one hand ,on the other hand,on the contrary/contrary to ..., though, for one thing ;for another, nevertheless

A. I know the Internet can only be used at home or in the office, but on the other hand, it is becoming more and more popular for much information as well as clear and vivid pictures.

B. It is hard work; I enjoy it though.

C. Contrary to what I had originally thought, the trip turned out to be fun.

四. 递进用语：

even, besides, what’s more, as for,so…that…, worse still, moreover, furthermore; but for, in addition, to make matters worse

A. The house is too small for a family of four, and furthermore/besides/what’s more/moreover /in addition/worse still , it is in a bad location.

五. 例证用语：

in one’s opinion,that is to say,for example, for instance, as a matter of fact, in fact, namely

A. As a matter of fact, advertisement plays an informative role in our daily life.

B. There is one more topic to discuss, namely/that is ( to say ), the question of education.

六. 时序用语：

first/firstly, meanwhile, before long, ever since, while, at the same time, in the meantime, shortly after, nowadays,

A. They will be here soon. Meanwhile, let’s have coffee.

B. Firstly, let me deal with the most important difficulty.

七. 强调用语：

especially, indeed, at least, at the most, What in the world/on earth.. , not at all ,

A. Noise is unpleasant, especially when you are trying to sleep.

B What in the world/on earth are you doing?

八. 因果用语：

thanks to, because, as a result, because of/as a result of , without, with the help of..., owe ...to...

A. The company has a successful year, thanks mainly to the improvement in export sales.

B. As a result, many of us succeeded in passing the College Entrance Examinations.

九. 总结用语：

in short; briefly/ in brief ; generally speaking, in a word, as you know, as is known to all

A. Generally speaking, sending an e-mail is more convenient than sending letters.

B. In short, measures must be taken to prevent the environment being polluted.