评论型作文也称开放型议论异长书充了乙击食适节文，因为文章只是客观地分析来自和评论某一事物的正反两方面，或在某一问题上反映出来的两种不同看法，并不下结论说这个事物对或错，这个看法正确与否。

　　句型结构：

　　P1: S1 Top360国学ic: the issue to be commented

　　S2 Thesis: different attitudes towards it

　　P2: S3 Its advantages or one’s side’s opinion

　　S4 D背出爱放晚争华买执etail 1

　　S5 Detail 2

　　S6 Transition

　　S7 Its disadvantages or the other side’s opinion

　　S8 Detail 1

　　S9 Detail 2

　　P3: S10 The balanced view

　　Sentence Pattern

　　S1: Why should we…? Does …? Such question as these are often asked, especially by those…

　　S2: The answers to these questions                   vary from

　　Opinion of the issue                  often      d费子均未对iffer sharply/ widely.

　　Attitude towards the problem

　　S3: Some peo图ple argue/maintain         that …

　　As is often/frequently po析知红给言调优弦inted out 

　　S4: There is no       doubt      that…　　S4: There is no       doubt      t宁波景便准题志伤引hat…　　denying 　　S5: It certainly      helps      people       to solve /enjoy/ benefit…　　offers                 greater opportunity/chance to　　S6: Despite/For all th总而e advantages,       it also brings its own problems…　　other contend/argu财括陆美已究轮美苏e that…　　S7: The main      problem with     it is that…　　Advantage to　　S8: It 额而衡按改价is          objected       o容损科n the grounds that it     contributes/leads to rise…　　活能Criticized                            imposes a serious problem for　　S9: Beside夫研联们半s,…　　In addition,…　　S10: Whether i攻序身害攻火范t    is good or not /positive or negative,    one thing is    certain…　　Does good or harm                              clear　　Models:　　Advantages and Disadvantages of the Use of Computers　　1． 描写电脑的普及状况　　2． 电脑给家拿重连啊庭带来的好处　　3． 电脑带来的问题　　(1)Com字景训检找波挥puters have become increasingly popular in the recent years. (2)须烟绿太查晶既杨According to the chart, in 2000, 68% of families owned comput刑婷所简胶受ers, compared with 25% in 1995 and only 4% 10 years ago.　　(3)L值析判促ike TV, computers benefit pe附女杆供宜裂ople hugely. (球乙后防静弱连4)With the computer, the home will become a library, a school, an office and an entertainment center. (5)All transactions, from banking to shopping, will be performed electronically and all in请战加院地断之真火概formation, from train sc准照德前负洋军hedules to disc和批起病预陈甚ount-price goods犯翻在古, will be as close as the press 式工克农广脸因of a key. (听牛则位粉肉6)In addition to providing us many of the facilities and services we now must  , with the Internet, the computer will even let us communicate directly with o责势阶族学伯城联如九ther homes and with information sources worldw西歌京稳击看满超营包成ide. (7)Despite the increase in efficiency and conve洲端异县特nience generated by the computer, the changes it brings could very well lead to potentially adverse consequences. (8)For 振石航三example, as nearly all activities could be conducted in the co自千船文影规mfort of our homes, we could all become hermit-like, never feeling any need to leave the house. (9)This 室沿显鱼临调注would be un里话轮府从fortunate because our children especially will become so addicted to computers that they migh氢跳技加货终早景搞t never be exposed to social interaction.　　(10)Unquestionably, the challenge of the home computer means we all should consid制战洋地流笔婷歌哪er how we can control it, so that it won’t control us.　　The Positive and Negative Aspects of Skyscrapers　　1． 许多城市竞相建造摩天大楼　　2． 人们对建造摩天大楼有不同的看法　　3． 我的看法　　(1)In recent years with fast econo浓还算养激普帮mic growth, ma路玉义副至管环送李片ny skyscrapers have appeare强倍议师d in big cities of China. (2)People’s attitude towards the skyscrapers 成反钢varies widely.　　(3)Some think of them as a sig批皮都倍n of econo搞mic progres等消社月帮打里胡s and a miracle of modern architecture. (4)They also believe that building skyscrapers helps to 茶考生药传宣苗吗帝备反solve the problem of the growing scarcity of land in t请半应he city, for 具苦胶阶脸经胜展浓磁they can obtain the maximum space per square meter of ground and meanwhile offer to the tenants offices and apartments that please them. (5)Yet others, speak of the p马roblems skyscrapers have brought. (6)T宁乎hey complain that the monstrous edifices interfere with television reception, blot out the sun and create m困气通浓之至派怎倍any dark sunless streets. (7)Besides, excessively large masses of human beings working in a single gigantic building overburden public transportation. (8)Lighting, heating, and air conditioning strain energy supplies, to the extent that skyscrapers become lavish consumers, and wasters, of electric power. (9)Worst of all, their reflective glasses coated with silver or gold mirror films raise the temperature of the surrounding air.　　(10)With these problems and the effect the skyscrapers has exerted on the environment, more and more people have begun to wonder whether skyscrapers are necessary or desirable.　　Should Euthanasia Be Legalized?　　1． 有的人赞成安乐死　　2． 有的人安乐死的合法化　　3． 我的看法　　(1)Euthanasia, a quiet and easy death, or “mercy killing” as we call it recently has made the headlines frequently. (2)Many people applaud it and argue that euthanasia should be legalized.　　(3)As is pointed out, to practice euthanasia can benefit both the patient and his family. (4)To a terminally ill person who is suffering excruciating pains day and night or living “ like a vegetable”, to be allowed to end his life painlessly is a good release. (5)To his family it is also a big relief considering the financial and emotional drain on them that having to sustain his life entails. (6)However, the legalization of euthanasia may also bring with it problems our society has not previously faced. (7)Is it humane, for example, that a terminally ill patient is thus caused to feel guilty for remaining alive because he does not want to die? (8)Is it wise that a patient is killed alive simply because of a mistaken terminal diagnosis? (9)And is it possible that euthanasia could be taken advantage of for some ulterior or even criminal purposes?　　(10)Since the legalization of euthanasia will raise serious moral and social issues, the decision our society makes about euthanasia will undoubtedly have tremendous consequences in society.　　The Development of a Private Car　　1． 小汽车开始进入中国的普通家庭　　2． 小汽车带来的方便和舒适　　3． 小汽车带来的交通和污染问题　　(1)With the increase in the general standard of living, some ordinary Chinese families begin to afford car. (2)Yet opinions of the development of a private car vary from person to person.　　(3)Some claim that there are many advantages in possessing a car. (4)It gives a much greater degree of comfort and mobility. (5)The owner of a car is no longer forced to rely on public transport, and hence no irritation caused by waiting for buses or taxies. (6)With a car he can go where he likes and when he wants, so much so that he can enjoy his leisure to the full by making trips to the country or seaside on the weekends, instead of being confined to his immediate neighbourhood. (7)However, others strongly object to developing private cars. (8)They maintain that as more and more cars are produced and run in the street, a large volume of poisonous gas will be given off, polluting the atmosphere and causing actual harm to the health of people. (9)In fact, private cars contribute to traffic congestion so greatly that the advantages gained in comfort and freedom are often cancelled out by the frustration caused by traffic jams　　(10)Whether private cars should be developed in China is a difficult question to answer, yet the desire for the comfort and independence a private car can bring won’t be eliminated.　　Rural Workers: A Mixed Blessing for the City　　1． 20世纪90年代以来，大批民工流入沿海大城市　　2． 民工对城市的建设所做的贡献　　3． 民工的大量流入可能带来的问题　　(1The early-1990s finds an unprecedented tide of rural workers flooding into big cities such as Shanghai, Guangzhou, and Beijing. (2)According to a recent survey, in Shanghai alone there are more than 2.5 million migrant workers.　　(3)There is an ambivalent feeling towards rural workers. (4)No one denies the important contribution rural workers have made to the urban development. (5)They have done most of dirty, dangerous and underpaid jobs in heavy industries, construction sites and other fields that city residents are unwilling to enter. (6)They have become an indispensable part of urban life to a point where the machinery of a city connot operate without those cogs, though small and unnoticed. (7)Yet an anti-migrant attitude runs consistently through the mainstream of urban consciousness. (8)City residents complain that migrant workers have worsened traffic and sanitation problems and have threatened to take already scarce urban jobs. (9)They also blame them for the sharp rise in the urban crime rate.　　(10)Despite the problems posed by migrants, one thing is certain: a grand, prosperous edifice of the city is based on the work of millions of migrant workers.　　Exercises:　　TV: A Blessing or a Curse　　1． 电视已成为人们生活中不可缺少的东西　　2． 电视给人们带来的是福是祸　　3． 我的看法　　My View on the Construction of the Three Gorges Dam　　1． 三峡工程的优点　　2． 三峡工程的缺点　　3． 我的看法　　Prospect of the New Age of Science and Technology　　1． 新世纪的科技发展迅速　　2． 新科技对社会产生的影响　　1． 我的看法