大学英语四级作文辅导(主题句+扩展句+结尾句).ppt

大学英语四级考试作文辅导;第一讲 主题句扩展句和结尾句 ;一、主题句：要想写好段落，首先要写好主题句。 ;1.主题句的构成;2.写好主题句的方法 ①完整的句子，而不是短语：那些不能表达一个完整思想的词组或短语，不能作为段落的主题句。如： ;②主题句必须紧扣文章的主题:文章各段的主题句应该紧紧围绕文章的中心思想，从不同的方面对文章的主题进行论述。例如下面这篇文章： ;③主题句要内容具体;④注意选定几个关键词;3.主题句的写作技巧;3. 用动名词短语来表达主题，做主语。 Owning a private car is very convenient. Keeping pets can lead to some problems. Studying abroad benefits students in many aspects. 4. 用“There +be + 名词”句型来写主题句。 There are several reasons why we should develop the industry of private cars. There are innumerable advantages of keeping pets. There are diverse solutions to the housing problem in big cities. There are effective measures that we can adopt to deal with the issue of rising crime rate. ;5. 用It is + adj. +for sb. to do sth. 句型 It is beneficial for college students to take part in various social activities. It is necessary for us to get to know about the society. It is desirable/ advisable for young people to go abroad to study. ;4.主题句的位置;二、扩展句;2.写好扩展句的方法: 扩展句的写作方法：①定义法，②分类法，③例证法，④列举法，⑤因果关系法，⑥对照比较法（类比法），⑦综合法等。 ;例如: The development of science and technology has brought about many changes in people’s life. This can be best illustrated by the invention of television, which has opened a new era for mankind. Through the use of TV people can learn the events which happened thousands of miles away and realize the dream of traveling around the world without having to leave their home. It is often believed that practice makes perfect. As everybody can see, persistent practice will naturally lead to perfect performances and high efficiency. For example, when we learn English, we have to learn such things as grammar, vocabulary, structure and so on. In order to achieve fluency and accuracy as well, we need practice in listening, speaking, reading and writing. Only through constant practice can we have a good command of English. Another case in point is learning to play the piano. It is through repeated practice that a person learns to play the piano a