According to a recent survey， four million people die each year from diseases linked to 依照最近的一项调查，每年有4，000，000人死于与吸烟有关的疾病。 The latest surveys show that quite a few children have unpleasant associations with 最近的调查显示相当多的孩子对家庭作业没什么好感。 No invention has received more praise and abuse than I 没有一项发明像互联网一样同时受到如此多的赞扬和批评。 People seem to fail to take into account the fact that education does not end with 人们似乎忽视了教育不应该随着毕业而结束这一事实。 An increasing number of people are beginning to realize that education is not complete with 越来越多的人开始意识到教育不能随着毕业而结束。 When it comes to education， the majority of people believe that education is a lifetime 说到教育，大部分人认为其是一个终生的学习。 Many experts point out that physical exercise contributes directly to a persons physical 许多专家指出体育锻炼直接有助于身体健康。 Proper measures must be taken to limit the number of foreign tourists and the great efforts should be made to protect local environment and history from the harmful effects of international 应该采取适当的措施限制外国旅游者的数量，努力保护当地环境和历史不受国际旅游业的不利影响。 An increasing number of experts believe that migrants will exert positive effects on construction of However， this opinion is now being questioned by more and more city residents， who complain that the migrants have brought many serious problems like crime and 越来越多的专家相信移民对城市的建设起到积极作用。然而，越来越多的城市居民却怀疑这种说法，他们抱怨民工给城市带来了许多严重的问题，像犯罪和卖淫。 Many city residents complain that it is so few buses in their city that they have to spend much more time waiting for a bus， which is usually crowded with a large number of 许多市民抱怨城市的公交车太少，以至于他们要花很长时间等一辆公交车，而车上可能已满载乘客。 There is no denying the fact that air pollution is an extremely serious problem: the city authorities should take strong measures to deal with 无可否认，空气污染是一个极其严重的问题：城市当局应该采取有力措施来解决它。 An investigation shows that female workers tend to have a favorable attitude toward 一项调查显示妇女欢迎退休。 A proper part-time job does not occupy students too much In fact， it is unhealthy for them to spend all of time on their As an old saying goes: All work and no play makes Jack a dull 一份适当的业余工作并不会占用学生太多的时间，事实上，把全部的时间都用到学习上并不健康，正如那句老话：只工作，不玩耍，聪明的孩子会变傻。 Any government， which is blind to this point， may pay a heavy 任何政府忽视这一点都将付出巨大的代价。 Nowadays， many students always go into raptures at the mere mention of the coming life of high school or college they will Unfortunately， for most young people， it is not pleasant experience on their first day on 当前，一提到即将开始的学校生活，许多学生都会兴高采烈。然而，对多数年轻人来说，校园刚开始的日子并不是什么愉快的经历。 In view of the seriousness of this problem， effective measures should be taken before things get 考虑到问题的严重性，在事态进一步恶化之前，必须采取有效的措施。 The majority of students believe that part-time job will provide them with more opportunities to develop their interpersonal skills， which may put them in a favorable position in the future job 大部分学生相信业余工作会使他们有更多机会发展人际交往能力，而这对他们未来找工作是非常有好处的。 It is indisputable that there are millions of people who still have a miserable life and have to face the dangers of starvation and 无可争辩，现在有成千上万的人仍过着挨饿受冻的痛苦生活。 Although this view is wildly held， this is little evidence that education can be obtained at any age and at any 尽管这一观点被广泛接受，很少有证据表明教育能够在任何地点、任何年龄进行。 No one can deny the fact that a persons education is the most important aspect of his 没有人能否认：教育是人生最重要的一方面。 People equate success in life with the ability of operating 人们把会使用计算机与人生成功相提并论。 In the last decades， advances in medical technology have made it possible for people to live longer than in the 在过去的几十年，先进的医疗技术已经使得人们比过去活的时间更长成为可能。 In fact， we have to admit the fact that the quality of life is as important as life 事实上，我们必须承认生命的质量和生命本身一样重要。 We should spare no effort to beautify our 我们应该不遗余力地美化我们的环境。 People believe that computer skills will enhance their job opportunities or promotion 人们相信拥有计算机技术可以获得更多工作或提升的机会。 The information Ive collected over last few years leads me to believe that this knowledge may be less useful than most people 从这几年我搜集的信息来看，这些知识并没有人们想象的那么有用。 Now， it is generally accepted that no college or university can educate its students by the time they 现在，人们普遍认为没有一所大学能够在毕业时候教给学生所有的知识。 This is a matter of life and death--a matter no country can afford to 这是一个关系到生死的问题，任何国家都不能忽视。 For my part， I agree with the latter opinion for the following reasons: 我同意后者，有如下理由： Before giving my opinion， I think it is important to look at the arguments on both 在给出我的观点之前，我想看看双方的观点是重要的。 This view is now being questioned by more and more 这一观点正受到越来越多人的质疑。 Although many people claim that， along with the rapidly economic development， the number of people who use bicycle are decreasing and bicycle is bound to die The information Ive collected over the recent years leads me to believe that bicycle will continue to play extremely important roles in modern 尽管许多人认为随着经济的高速发展，用自行车的人数会减少，自行车可能会消亡， 然而，这几年我收集的一些信息让我相信自行车仍然会继续在现代社会发挥极其重要的作用。 Environmental experts point out that increasing pollution not only causes serious problems such as global warming but also could threaten to end human life on our 环境学家指出：持续增加的污染不仅会导致像全球变暖这样严重的问题，而且还将威胁到人类在这个星球的生存。 In view of such serious situation， environmental tools of transportation like bicycle are more important than any time 考虑到这些严重的状况，我们比以往任何时候更需要像自行车这样的环保型交通工具。 Using bicycle contributes greatly to peoples physical fitness as well as easing traffic 使用自行车有助于人们的身体健康，并极大地缓解了交通阻塞。 Despite many obvious advantages of bicycle， it is not without its 尽管自行车有许多明显的优点，但是它也存在它的问题。 Bicycle cant be compared with other means of transportation like car and train for speed and 在速度和舒适度方面，自行车是无法和汽车、火车这样的交通工具相比的。 From what has been discussed above， we may safely draw the conclusion that advantages of bicycle far outweigh its disadvantages and it will still play essential roles in modern 通过以上讨论，我们可以得出结论：自行车的优点远大于缺点，并且在现代社会它仍将发挥重要作用。 There is a general discussion these days over education in many colleges and One of the questions under debate is whether education is a lifetime 当前在高校和研究机构对教育存在着大量争论，其中一个问题就是教育是否是个终身学习的过程。 This issue has caused wide public 这个问题已经引起了广泛关注。 It must be noted that learning must be done by a person 必须指出学习只能靠自己。 A large number of people tend to live under the illusion that they had completed their education when they finished their Obviously， they seem to fail to take into account the basic fact that a persons education is a most important aspect of his 许多人存在这样的误解，认为离开学校就意味着结束了他们的教育。显然，他们忽视了教育是人生重要部分这一基本事实。 As for me， Im in favor of the opinion that education is not complete with graduation， for the following reasons: 就我而言，我同意教育不应该随着毕业而结束的观点，有以下原因： It is commonly accepted that no college or university can educate its students by the time they 人们普遍认为高校是不可能在毕业的时候教会他们的学生所有知识的。 Even the best possible graduate needs to continue learning before she or he becomes an educated 即使最优秀的毕业生，要想成为一个博学的人也要不断地学习。 It is commonly thought that our society had dramatically changed by modern science and technology， and human had made extraordinary progress in knowledge and technology over the recent 人们普遍认为我们的现代科技使我们的社会发生了巨大的变化，近几十年人类在科技方面取得了惊人的进步。 Now people in growing numbers are beginning to believe that learning new skills and knowledge contributes directly to enhancing their job opportunities or promotion 现在越来越多的人开始相信学习新的技术和知识能直接帮助他们获得工作就会或提升的机会。 An investigation shows that many older people express a strong desire to continue studying in university or 一项调查显示许多老人都有到大学继续学习的愿望。 For the majority of people， reading or learning a new skill has become the focus of their lives and the source of their happiness and contentment after their 对大多数人来讲，退休以后，阅读或学习一项新技术已成为他们生活的中心和快乐的来源。 For people who want to adopt a healthy and meaningful life style， it is important to find time to learn certain new Just as an old saying goes: it is never too late to 对于那些想过上健康而有意义的生活的人们来说，找时间学习一些新知识是很重要的，正如那句老话：活到老，学到老。 There is a general debate on the campus today over the phenomenon of college or high school students doing a part-time 对于大学或高中生打工这一现象，校园里进行着广泛的争论。 By taking a major-related part-job， students can not only improve their academic studies， but gain much experience， experience they will never be able to get from the 通过做一份和专业相关的工作，学生不仅能够提高他们的专业能力，而且能获得从课本上得不到的经验。 Although people's lives have been dramatically changed over the last decades， it must be admitted that， shortage of funds is still the one of the biggest questions that students nowadays have to face because that tuition fees and prices of books are soaring by the day 近几十年，尽管人们的生活有了惊人的改变，但必须承认，由于学费和书费日益飞涨，资金短缺仍然是学生们面临的最大问题之一。 Consequently， the extra money obtained from part-time job will strongly support students to continue to their study 因此，业余工作挣来的钱将强有力地支持学生们继续他们的求学生活。 From what has been discussed above， we may safely draw a conclusion that part-time job can produce a far-reaching impact on students and they should be encouraged to take part-time job， which will benefit students and their family， even the society as a 通过上面的讨论，我们不难得出结论：业余工作对学生们会产生深远的影响，我们应鼓励学生从事业余工作，这将有利于学生和他们的家庭，甚至整个社会。 These days， people in growing numbers are beginning to complain that work is more stressful and less leisurely than in Many experts point out that， along with the development of modern society， it is an inevitable result and there is no way to avoid 现在，越来越多的人们开始抱怨工作比以前更有压力。许多专家指出这是现代社会发展必然的结果，无法避免。 It is widely acknowledged that computer and other machines have become an indispensable part of our society， which make our life and work more comfortable and less 人们普遍认为计算机和其他机器已经成为我们社会必不可少的一部分。 它们使我们的生活更舒适，减少了大量劳动。 At the same time， along with the benefits of such machines， employees must study knowledge involved in such machines so that they are able to control 同时，随着这些机器带给我们的好处，员工们也必须要学习与之相关的知识以便使用它们。 No one can deny the basic fact that it is impossible for average workers to master those high-technology skills 没有人能否认这一基本事实：对于一般工人来讲，轻松掌握这些技术是不可能的。 In the second place， there seem to be too many people without job and not enough job 第二方面，失业的人似乎太多而又没有足够的工作岗位。 Millions of people have to spend more time and energy on studying new skills and technology so that they can keep a favorable position in job 成千上万的人们不得不花费更多的精力和时间学习新的技术和知识，使得他们在就业市场能保持优势。 According to a recent survey， a growing number of people express a strong desire to take another job or spend more time on their job in order to get more money to support their 根据最近的一项调查，越来越多的人表达了想从事另外的工作或加班以赚取更多的钱来补贴家用的强烈愿望。 From what has been discussed above， I am fully convinced that the leisure life-style is undergoing a decline with the progress of modern society， it is not necessary a bad 通过以上讨论，我完全相信，随着现代社会的进步，幽闲的生活方式正在消失并不是件坏事。 The problem of international tourism has caused wide public concern over the recent 近些年，国际旅游的问题引起了广泛关注。 Many people believe that international tourism produce positive effects on economic growth and local government should be encouraged to promote international 许多人认为国际旅游对经济发展有积极作用，应鼓励地方政府发展国际旅游。 But what these people fail to see is that international tourism may bring about a disastrous impact on our environment and local 但是这些人忽视了国际旅游可能会给当地环境和历史造成的灾难性的影响。 As for me， Im firmly convinced that the number of foreign tourists should be limited， for the following reasons: 就我而言，我坚定地认为国外旅游者的数量应得到限制，理由如下： In addition， in order to attract tourists， a lot of artificial facilities have been built， which have certain unfavorable effects on the 另外，为了吸引旅游者，大量人工设施被修建，这对环境是不利的。 For lack of distinct culture， some places will not attract tourists any Consequently， the fast rise in number of foreign tourists may eventually lead to the decline of local 由于缺乏独特的文化，一些地方不再吸引旅游者。因此，国外旅游者数量的快速增加可能最终会导致当地旅游业的衰败。 There is a growing tendency for parents to ask their children to accept extra educational programs over the recent 近些年，父母要求他们的孩子接受额外的教育呈增长的势头。 This phenomenon has caused wide public concern in many places of 这一现象在全世界许多地方已引起了广泛关注。 Many parents believe that additional educational activities enjoy obvious By extra studies， they maintain， their children are able to obtain many kinds of practical skills and useful knowledge， which will put them in a beneficial position in the future job markets when they grow 许多家长相信额外的教育活动有许多优点，通过学习，他们的孩子可以获得很多实践技能和有用的知识，当他们长大后，这些对他们就业是大有好处的。 In the first place， extra studies bring about unhealthy impacts on physical growth of Educational experts point out that， it is equally important to take some sport activities instead of extra studies when children have spent the whole day in a boring 首先，额外的学习对孩子们的身体发育是不利的。教育专家指出，孩子们在枯燥的教室里呆了一整天后，从事一些体育活动，而不是额外的学习，是非常重要的。 Children are undergoing fast physical development; lack of physical exercise may produce disastrous influence on their later 孩子们正处于身体快速发育时期，缺乏体育锻炼可能会对他们未来的生活造成严重的影响。 In the second place， from psychological aspect， the majority of children seem to tend to have an unfavorable attitude toward additional educational 第二，从心理上讲，大部分孩子似乎对额外的学习没有什么好感。 It is hard to imagine a student focusing their energy on textbook while other children are 当别的孩子在玩耍的时候，很难想象一个学生能集中精力在课本上。 Moreover， children will have less time to play and communicate with their peers due to extra studies， consequently， it is difficult to develop and cultivate their character and interpersonal They may become more solitary and even suffer from certain mental 而且，由于要额外地学习，孩子们没有多少时间和同龄的孩子玩耍和交流，很难培养他们的个性和交际能力。他们可能变得孤僻甚至产生某些心理疾病。 From what has been discussed above， we may safely draw the conclusion that， although extra studies indeed enjoy many obvious advantages， its disadvantages shouldnt be ignored and far outweigh its It is absurd to force children to take extra studies after 通过以上讨论，我们可以得出结论：尽管额外学习的确有很多优点，但它的缺点不可忽视，且远大于它的优点。因此，放学后强迫孩子额外学习是不明智的。 Any parents should place considerable emphasis on their children to keep the balance between play and As an old saying goes: All work and no play makes Jack a dull 任何家长都应非常重视保持孩子在学习与玩耍的平衡，正如那句老话：只工作，不玩耍，聪明的孩子会变傻。 There is a growing tendency for parent these days to stay at home to look after their children instead of returning to work 现在，父亲或母亲留在家里照顾他们的孩子而不愿过早返回工作岗位正成为增加的趋势。
）There are three reasons for this． 2）The reasons for this are as follows． 3）The reason for this is obvious． 4）The reason for this is not far to seek． 5）The reason for this is that．．． 6）We have good reason to believe that．．． 例： There are three reasons for the changes that have taken place in our life．Firstly，people’s living standard has been greatly improved．Secondly，most people are well paid， and they can afford what they need or like．Last but not least，more and more people prefer to enjoy modern life． 注：如考生写第一个句子没有把握，可将其改写成两个句子。如：Great changes have taken place in our life． There are three reasons for this．这样写可以避免套用中的表达失误。 2．表示好处 1）It has the following advantages． 2）It does us a lot of good． 3）It benefits us quite a lot． 4）It is beneficial to us． 5）It is of great benefit to us． 例： Books are like friends．They can help us know the world better，and they can open our minds and widen our horizons．Therefore，reading extensively is of great benefit to us． 3．表示坏处 1）It has more disadvantages than advantages． 2）It does us much harm． 3）It is harmfulto us． 例： However，everything dividesinto two．Television can also be harmful to us．It can do harm to our health and make us lazy if we spend too much time watching televi- sion． 4．表示重要、必要、困难、方便、可能 1）It is important（necessary，difficult，convenient， possible）for sb．to do sth． 2）We think it necessary to do sth． 3）It plays an important role in our life． 例： Computers are now being used everywhere，whether in the government，in schools or in business．Soon， computers will be found in every home，too．We have good reason to say that computers are playing an increasingly important role in our life and we have stepped into the Computer Age． 5．表示措施 1）We should take some effective measures． 2）We should try our best to overcome（conquer）the difficulties． 3）We should do our utmost in doing sth． 4）We should solve the problems that we are confronted（faced）with． 例： The housing problem that we are confronted with is becoming more and more serious．Therefore，we must take some effective measures to solve it． 6．表示变化 1）Some changes have taken place in the past five years． 2）A great change will certainly be produced in the world’s communications． 3）The computer has brought about many changes in education． 例： Some changes have taken place in people’s diet in the past five years．The major reasons for these changes are not far to seek．Nowadays，more and more people are switching from grain to meat for protein，and from fruit and vegetable to milk for vitamins． 7．表示事实、现状 1）We cannot ignore the fact that．．． 2）No one can deny the fact that．．． 3）There is no denying the fact that．．． 4）This is a phenomenon that many people are interested in． 5）However，that’s not the case． 例： We cannot ignore the fact that industrialization brings with it the problems of pollution．To solve these problems， we can start by educating the public about the hazards of pollution．The government on its part should also design stricter laws to promote a cleaner environment．结尾万能公式： 一 结论 Obviously(此为过渡短语)， we can draw the conclusion that good manners arise from politeness and respect for 二 建议 Obviously， it is high time that we took some measures to solve the (虚拟语气用得经典) 更多句型： Accordingly， I recommend that some measures be Consequently， to solve the problem， some measures should be 检查四个重点部位，把好最后一关 1) 是否切题(主题句) 2) 是否连贯 检验的标准主要是句子是否通顺，该用连接词的地方用了没有，以及所用的连接词是否合适。 3) 是否有语法错误 主谓是否一致，动词的时态、语态、语气的使用是否正确，词组的搭配是否合乎习惯。为避免不必要的语法错误，对把握性不大的词组、句型绝不要用。而应使用那些自己熟悉的词组、句型来表达相同或相近的意思。 4)是否有大小写、拼写、标点错误 在这些细枝末节上，谨慎细心地处理，无疑会进一步提高文章的整体质量。在检查、改错的过程中，切忌乱涂乱抹。保持卷面清洁，会给阅卷者留下好印象。 Advantages and Disadvantages of…题型 套路 Nowadays， …plays an important part/role in … //… has become a household Like everything else， it has both merits and Generally speaking， the positive aspects can be listed as follows: First，… In addition，… Above all，… But every coin has two // But every advantage has its The negative aspects are also To begin with，… To make matters worse，… Worst of all，… But obviously， the advantages of … outweigh its disadvantages， which speaks for its Application Letters Express your interest in the post you are applying for give reasons for your State personal qualifications and experience related to the References//Requests for further
1、否定句许多否定句不含not的否定结构。如果论文作者能正确使用他们，就会增加写作的闪光点，使文章显得生动活泼。 Instead of indulging in playing computer games， children should be taught how to benefit from useful information on the 应该教孩子们如何从互联网获取有益的信息，而不是沉溺于玩电脑游戏。 On no account (Under no circumstances)can we ignore the immense value of 我们绝不能忽视知识的巨大价值。 College students take part-time jobs not for more money but fora better understanding of 大学生参加兼职工作不是为了赚更多钱，而是为了更好地了解社会。 One’s salary does not depend so much on his educational background ason his ability and contribution to the 一个人的工资与其说取决于他的教育背景倒不如说取决于他的能力和对社会的贡献。2、非限制性定语从句如果需要对前述的整个句子内容进行解释或说明，就可以用到非限制性定语从句。 Undoubtedly， practical courses can be used to the reality，which is of vital importance to their development in the 毫无疑问，实用性课程可以用于实际中，这对于他们未来发展是非常重要的。 Children tend to imitate what they have seen and heard on mass media， which is sometimes dangerous and 孩子们倾向于模仿大众媒体上的所见所闻，这在有时是危险和有害的。 The majority of students believe that part-time jobs will provide them with more opportunities to develop their interpersonal skills， which may put them in a favorable position in the future job 大部分学生相信业余工作会使他们有更多机会发展人际交往能力， 这对他们未来找工作是非常有好处的。3、让步句让步句是写论文最常用的句式之一，作者务必掌握以下4种用法，可以使英文句子起伏跌宕，富于变化。 This view is widely acknowledged;however，there is little evidence that smoking is beneficial to people’s 这个观点被广泛认可，然而，几乎没有证据表明吸烟对人们健康有利。 Although(Whilst)the computer has been widely used in class， it cannot replace the role of 尽管计算机已经广泛用于课堂，但是它不能取代教师的作用。 Reasonable as the opinion sounds， it cannot bear much 虽然这个观点听起来有道理，但是它经不住分析。 In spite of a lot of conveniences that cars bring to people’s life， it can create a series of serious 尽管汽车给人们的生活带来了许多便利，但是也产生了一系列严重的问题。4、It引导的句子It引导的句子是写作中使用频率最高的句式。作者应熟练掌握其用法，并能灵活运用到文章的开篇、主体段和结尾段中。 It is hard to imagine what our life would look like without computers in modern 很难想象如果现代社会没有了计算机，我们的生活会变成什么样子。 It is conceivable that being physically active does good to 可想而知，积极参加体育活动有利于身体健康。 It is a highly controversial issue whether women should join the armed forces or 女性是否应该参军是一个非常有争议的问题。 It is universally acknowledged that water and air are indispensable to human 人们普遍认为，水和空气对人类不可缺少。5、假设句假设句可分为真实假设句和非真实假设句两种。常用在主体段落表示正、反论证。 If we destroy old buildings， then we will ruin the traditional culture and 如果我们推倒老房子，就要破坏传统的文化和遗产。 You would miss the chance to interact with other students if you used internet at 假如你在家上网，你就会失去与其他同学交流的机会。 Once you change your present job， you will be faced with the danger of being 一旦你变换了现在的工作，就面临着失业的危险。6、倒装句在写作中恰当和准确地使用倒装句，有助于句子表达形式的多样化，使语言更加生动有力。 Only in this way can the problem be tackled 只有这样才能妥善地解决这个问题。 Only when children take arduous efforts can they become 只有当孩子们付出艰苦的努力他们才能获得成功。 Not only does studying in school serve academic purpose， but students learn how to handle interpersonal 在校学习不仅为了学术目的，而且还可以学会如何处理人际关系。 Under no circumstances should youngsters follow negative information on mass media 青少年决不应当盲从大众媒体上的不良信息。7、强调句写作时为了突出句子的某一成分，常常使用强调句。 It is for the benefit of maintaining the ecological balance that human beings ought to protect the endangered animal 正是为了维持生态平衡，人类才应该保护地球上濒危的动物物种。 It is not until people suffer from some fatal diseases such as SARS and AIDS that they are becoming aware of how significant it is for the government to invest more money in medical 直到人们患了像非典和爱滋病这样致命的疾病时，才意识到政府把更多的钱投入到医疗上的重要性。 Nothing in the world is more valuable than 世界上没有比健康更重要的了。8、比较句正确地使用比较结构可以使文章的句式增加变化，有利于提高写作成绩。 Studies show that juvenile delinquency rates are twice as high for youngsters from single-parent families as for those in traditional (同级比较)研究表明来自单亲家庭的青少年犯罪率是来自传统家庭的两倍。 Generally speaking， people in modern times enjoy less leisure time than they did (比较级)一般说来，现代人比过去享有更少的休闲时间。 Compared with those with different abilities， children with intelligence do more well in their school work and intelligence 与不同能力的孩子相比，聪明的孩子在学业和智力测验方面表现更加突出。 Contrary to pop stars， other professionals like doctors and teachers create the true value for their 与明星不同，其他专业人员如医生和教师为社会创造了真正的价值。 Air is to human what (as)water is to 空气对人类就如同水对鱼一样。9、插入语插入语是对一句话做一些附加说明或解释。最常见的位置于句中，一般用逗号或破折号与句子隔开。用得恰当，不仅可以增加字数，而且使文章更显地道和精彩。 Computers，most important of all，create wide communication around the 最重要的是，计算机在世界范围内建立了广泛的交流。 Providing more parking areas，in the long run， has proved to be a practical way out in many large cities in the 从长远的利益来看，提供更多的停车位证明是许多世界大城市切实可行的出路。 Observing local culture，consciously and unconsciously，can reduce the chance of offending the locals， or it will lead to the embarrassment and even 无论是否意识到，遵循当地的文化可以减少冒犯当地人的机会，否则，就会导致尴尬甚至冲突。 Space exploration， some people believe，will bring some unexpected 有人相信空间探索将会带来意想不到的发现。10、原因句几乎所有的写作试题都要求写原因或者可以写原因。议论文的讲道理实际就是说明原因。因此，掌握好表达原因的结构是十分重要的。 Violent films can do harm to young people，because they contains numerous negative 暴力影片对年轻人是有害的，因为其中包含大量负面信息。 Human beings are chiefly responsible for wild animal 野生动物灭绝的主要责任在人类。 We should attribute(ascribe)medical advances to the animals which do substantial contributions to the 我们应该把医学的发展归因于动物对实验做出的巨大贡献。 Because of overpopulation， water shortage has become one of the most serious 由于人口过剩，水短缺已经成为一个最严重的问题。
