英语六级考试写作分段逐句指导推展句
主题句指出影响气候的几个因素。然后用四个扩展句说明四种因素。第一种是太阳光的接收量，第二种是海拔高度，第三句和第四句分别是海洋和大气环流因素。
2.2 次要推展句
次要推展句是指对主要推展句作进一步的事实分析和举例说明。它从属于某一个或某几个推展句。
例2：I dont teach because teaching is easy for me. Teaching is the most difficult of the various ways I have attempted to earn my living: mechanic, carpenter, writer. For me, teaching is a red-eye, sweaty-palm, sinking-stomach profession. Red-eye, because I never feel ready to teach no matter how late I stay up preparing. Sweaty-palm, because Im always nervous before I enter the classroom, sure that I will be found out for the fool that I am. Sinking-stomach, because I leave the classroom an hour later convinced that I was even more boring than usual.
从属于主要推展句2的三个次要推展句起着解释说明作用，分别解释red-eye, sweaty-palm, sinking-stomach的含义，这就更加形象生动地证明了 teaching is not easy 这个主题。
2.3 主要推展句与次要推展句的关系
主要推展句与次要推展句的关系基本可以遵循下面的三部分规则。
1〕每个主要推展句都应该是对主题句中表示主要思想的关键词的直接、明确的说明。
2〕每个次要推展句都应该说明它的主要推展句。
3〕含有讨论说明或分析的问题通常既要有主要推展素材，又要有次要推展素材。
2.4 写好推展句的方法
主题句及关键词确定后，开始选择和主题有关的信息和素材。实质上，针对关键词测试每一个所选择的素材就是一个分类的过程。有一种常用的方法就是句子展开前加以设问，然后解答，即设问-解答的方法。下面我们通过举例来看一看这种分类过程是如何完成的。例3：
假设 Topic sentence: English is an international language?
设问 Why can we say English is an international language?
解答
Because: English is spoken by pilots and airport control operators on all the airways of the world.
Because: Over 70 percent of the worlds mail is written in English.
Because: More than 60 percent of the worlds radio programs are in English.
Because: Pakistan was once one of the British colonies.
Because: Many members of the International Language Society are selected from English-spoken countries.
从上面可以看出，最初的三个推展句是和关键词an international language一致的。第四句和主题句不统一，尽管第四句会成为另一主题句很好的推展句。第五句说服力不强。
当然，在写成段落时，没有必要在每个句子开头写上 because，但是，在动笔展开句子时，头脑里要想着这个词，这种检验方法能帮助你把注意力集中在某个重心，围绕主题思想层层展开。
上面我们讨论了主要推展句的一种展开方法。而展开次要推展句的方法与主要推展句类似，这里我们就不再复述了。
主题句指出影响气候的几个因素。然后用四个扩展句说明四种因素。第一种是太阳光的接收量，第二种是海拔高度，第三句和第四句分别是海洋和大气环流因素。
2.2 次要推展句
次要推展句是指对主要推展句作进一步的事实分析和举例说明。它从属于某一个或某几个推展句。
例2：I dont teach because teaching is easy for me. Teaching is the most difficult of the various ways I have attempted to earn my living: mechanic, carpenter, writer. For me, teaching is a red-eye, sweaty-palm, sinking-stomach profession. Red-eye, because I never feel ready to teach no matter how late I stay up preparing. Sweaty-palm, because Im always nervous before I enter the classroom, sure that I will be found out for the fool that I am. Sinking-stomach, because I leave the classroom an hour later convinced that I was even more boring than usual.
从属于主要推展句2的三个次要推展句起着解释说明作用，分别解释red-eye, sweaty-palm, sinking-stomach的含义，这就更加形象生动地证明了 teaching is not easy 这个主题。
2.3 主要推展句与次要推展句的关系
主要推展句与次要推展句的关系基本可以遵循下面的三部分规则。
1〕每个主要推展句都应该是对主题句中表示主要思想的关键词的直接、明确的说明。
2〕每个次要推展句都应该说明它的主要推展句。
3〕含有讨论说明或分析的问题通常既要有主要推展素材，又要有次要推展素材。
2.4 写好推展句的方法
主题句及关键词确定后，开始选择和主题有关的信息和素材。实质上，针对关键词测试每一个所选择的素材就是一个分类的过程。有一种常用的方法就是句子展开前加以设问，然后解答，即设问-解答的方法。下面我们通过举例来看一看这种分类过程是如何完成的。例3：
假设 Topic sentence: English is an international language?
设问 Why can we say English is an international language?
解答
Because: English is spoken by pilots and airport control operators on all the airways of the world.
Because: Over 70 percent of the worlds mail is written in English.
Because: More than 60 percent of the worlds radio programs are in English.
Because: Pakistan was once one of the British colonies.
Because: Many members of the International Language Society are selected from English-spoken countries.
从上面可以看出，最初的三个推展句是和关键词an international language一致的。第四句和主题句不统一，尽管第四句会成为另一主题句很好的推展句。第五句说服力不强。
当然，在写成段落时，没有必要在每个句子开头写上 because，但是，在动笔展开句子时，头脑里要想着这个词，这种检验方法能帮助你把注意力集中在某个重心，围绕主题思想层层展开。
上面我们讨论了主要推展句的一种展开方法。而展开次要推展句的方法与主要推展句类似，这里我们就不再复述了。
