【正文】 on that…例文一From what has been discussed above, we may safely e to the conclusion that parents do play a vital role in the education of their children, which can not be replaced by schooling. 例文二To conclude, smoking is nothing but evil as it is so harmful to people. All smokers should be taught of the great harm of smoking and be persuaded out of smoking. More importantly, we should protect our children from the harm of smoking through education. 第二小類（后果法）所謂后果法，就是對要討論的問題或現象可能會產生的后果作出預測或分析。下面介紹幾種實用有效的結尾方法和常用句式。10． Many a factor plays an important role in the course. 和例句1類似。8． The following ways can be adopted to organize a piic well. 屬于比較規(guī)范的主題句。6． There are two points to support my argument. 和例句1類似。4． There are many reasons accounting for this phenomenon. 屬于不完整主題句，和例句1相類似。2． No one can avoid being influenced by advertisements屬于不完整主題句，這個句子主要是討論主題，下面的行文應該通過幾個方面來說明這個觀點3． There are several reasons why we should protect our environment 完整主題句，有觀點，也有范圍。常見的主題句1． Many remarkable factors contribute to this argument. 屬于不完整主題句，因為并沒有提及討論主題，但顯然我們可以看出下面文章行文方向將是以原因為主。2． Working at a parttime job while studying at a university has many advantages. 在這句主題句中，“working at a parttime job while studying at a university” 討論主題，而 “many advantages ” 則是限定的討論范圍。主題句一般可分為兩個部分主題和限定詞。在四六級考試中，應該盡量把主題句放在句首。在四六級寫作給出的提綱中有時沒有開頭結尾，直接就會進入主題段落。第四小類（數據類）這類作文要求考生分析描述圖表。⑶擴展句二：論點正確性的表現中國有9億多農民。常用句式1. Now there is a growing awareness/recognition of the necessity to …./Now people are being increasing aware/ conscious of the importance of …2. It is true that …. No one can deny….3. ……, Which has been generally accepted. The truth of it is deep and profound/ selfevident. 用這樣的句子開頭后可以采用演繹法進行擴展例文⑴No one can deny that, in China, the development of agriculture is essential to the overall development of economy. ⑵The truth of it is selfevident. ⑶As we know, there are more than 900 million peasants in China. ⑷So the significance of development agriculture can’t be overemphasized in China. ⑴主題句：提出論點農業(yè)的發(fā)展對整個經濟的發(fā)展至關重要。下面大家分析作者用什么方法展開的第一段。對于利弊類文章，引言段通常采用背景介紹法。2．雙休日可能產生的副作用3．我是怎樣過雙休日的。3. There is no consensus of opinions among people as to the of .... Some people claim that ..., while others believe that ....第二小類（利弊類）要求作者對某個事物或現象的兩面性進行列舉和比較。2. When it es to ..., people39?，F將主要的開篇方法列舉如下：1． 議論文開篇寫法第一小類（論辯類）要求列舉對立雙方對某個問題的不同看法并陳述各自理由，如: Is a Test of Spoken English Necessary?1. 很多人認為有必要舉行英語口語考試，理由是。大學英語四六級作文講義篇章段落部分一，引言段四六級作文考試雖然對作文的要求不高。但 “麻雀雖小，五臟俱全”,如果能有一個自然得體，因人注目的開頭肯定會使文章增色不少。2．也有人持不同意見3．我的看法和