一、開(kāi)頭句型

　　我們常說(shuō)，良好的開(kāi)端等于成功的一半。做事如此，作文也是如此。所以我們頗有必要在作文的開(kāi)頭花一番心思。

　　在寫(xiě)議論文時(shí)，你通常以什么樣的方式開(kāi)頭呢?最簡(jiǎn)單也最常用的可能就是開(kāi)門(mén)見(jiàn)山法。也就是說(shuō)———直截了當(dāng)?shù)靥岢瞿銓?duì)這個(gè)問(wèn)題的觀點(diǎn)，點(diǎn)出文章的中心思想。

　　I....has both advantages and

　　disadvantages.……既有利又有弊。例如：

　　1.Obviously television has both advantages and disadvantages.

　　2.Living in a city has both advantages and disadvantages.

　　3.Com pared with cars，bikes have their advantages and disadvantages.

　　舉一反三：

　　1.Although computers bring people a lot of convenience，they have manydisadvantages.

　　2....has many advantages.For example，...However，just as everycoin has two sides，...has itsdisadvantages.(本例將利弊分開(kāi)講，轉(zhuǎn)折過(guò)渡自然。just as every coin has two sides也很值得背誦。)II....play(s)an important role /partin...……在……中扮演重要角色/起重要作用。例如：

　　1.Computers play an important role in science and technology.

　　2.Computers play a more and more important role in our life.

　　Computers play an increasingly important role in our studies.

　　3.Education plays an important part in developing our mind.

　　4.Addiction to alcohol and drugs play a role in homelessness.

　　舉一反三：

　　1.Advertisement plays an informative role in our daily life.

　　2.In the past，letters played a decisive role in long-distancecommunication.But now ，telephone，email，fax have taken their place.

　　III.With the development of...，隨著……的發(fā)展，例如：

　　1.With the developm ent of our econo- m y，m any Chinese fam ilies canafford a car.

　　2.With the development of our economy and society，pollution is moreand more serious.

　　3.With the rapid development of science and technology，people can geta college degree by taking online-courses at home.

　　4.With the current social and technological developments，employeeswith more knowledge and higher academic degrees are needed.

　　舉一反三：

　　1.With the rapid increase of China's population，housing problem isbecoming more and more serious.

　　隨著中國(guó)人口的急劇增加，住房問(wèn)題越來(lái)越突出。

　　2.With more and more women entering society，people's attitude towardswomen is changing.

　　隨著越來(lái)越多的婦女走入社會(huì)，人們對(duì)婦女的態(tài)度也在改變。

　　3.With the deepening of Chinese reform and opening up，an increasingnumber of Chinesefamilies can afford a car.

　　隨著中國(guó)改革開(kāi)放的深入，越來(lái)越多的中國(guó)家庭買(mǎi)得起車(chē)了。(“越來(lái)越多”除了常用的more and more外，還可以用an increasing number of， a growing number of，a significant number of，a great number of等來(lái)表達(dá)。)本結(jié)構(gòu)看似固定，實(shí)則富于變化，只要記住with有“隨著”的意思，相信大家可以根據(jù)實(shí)際的需要造出更多的句子。

　　我們已經(jīng)看到，開(kāi)門(mén)見(jiàn)山的開(kāi)頭使論文直切主題，直白明確地提出了論點(diǎn)。不過(guò)在討論某些有爭(zhēng)議性的問(wèn)題時(shí)，就顯得有欠缺，因?yàn)槲覀儽仨氃谖恼碌拈_(kāi)頭引出人們對(duì)要討論的問(wèn)題的不同看法，然后再表明自己的觀點(diǎn)。下面就是專(zhuān)門(mén)針對(duì)爭(zhēng)議性論文的一種句型。

　　IV.When it comes to...，some people think /believethat...，others argue /claim that opposite /reverse is true.There is probablysome truth in both arguments/statements，but...當(dāng)說(shuō)到……，有些人認(rèn)為……，但另一些人則持相反的觀點(diǎn)……。這兩種觀點(diǎn)可能都有點(diǎn)道理，但……。

　　本結(jié)構(gòu)先用when it comes to ...引出話題，再用some...others...這個(gè)對(duì)立的結(jié)構(gòu)引出了兩種相反的觀點(diǎn)，然后說(shuō)There is some truth inboth...表明嚴(yán)謹(jǐn)公正的態(tài)度，最后用but...很自然地引出了自己的論點(diǎn)。請(qǐng)看下面這個(gè)例子：

　　TV，a good thing or bad thing

　　When it comes to TV，some people believe that it is extremely valuable，as it provides relaxation， entertainment and education. Others argue that it is harmful for it begins to control our lives and deprives people of time to do other activities.There is probably some truth in both sides.But we must realize that television itself is neither good or bad.It is the uses to which it is put that determines its value to society.

　　二、結(jié)尾句型

　　英語(yǔ)議論文多以簡(jiǎn)要總結(jié)全文或?qū)λ�討論的�?wèn)題提出解決辦法來(lái)結(jié)尾�？偨Y(jié)全文時(shí)除常用到in one /a word，generally speaking等外，沒(méi)有固定模式。提出解決辦法時(shí)卻常使用下一句型。