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06年同等学力申硕英语应试指南（写作）二(2)
[摘要]
主题句的位置可以在段尾：
Doctors are of the opinion that most people cannot live beyond 100 years,but a growing number of scientists believe that the aging process can be controlled.There are mor...
主题句的位置可以在段尾：
Doctors are of the opinion that most people cannot live beyond 100 years,but a growing number of scientists believe that the aging process can be controlled.There are more than 12 000 Americans over 100 years old,and their numbers are increasing each year.DrJames Langley of Chicago claims that,theoretically and under ideal(理想的)conditions,animals,including man,can live six times longer than their normal period of growth.A person′s period of growth lasts about 25 years.If Dr.Langley′s theory is accurate(准确的), future generations can expect a life span(寿命)of 150 years .
主题句的位置可在段首段尾同时出现：
Good manners are important in all countries,but ways of expressing good manners are different from country to country .Americans eat with knives and forks(叉)；Japanese eat with chopsticks(筷子).Americans say“Hi”when they meet;Japanese bow.Many American men open doors for women;Japanese men do not.On the surface,it appears that good manners in America are not good manners in Japan,and in a way this is true.But in any country,the only manners that are important are those involving one person′s behavior toward another person.In all countries it is good manners to behave considerately toward others and bad manners not to. It is only the way of behaving politely that differs from country to country .
(以上4段摘自大学英语精读课本)
主题句出现在段落首或尾完全由写作需要而定。一般地说来，写这样100多词的小短文把主题句放在段首更有利于考生扣准中心思想展开论述。
3.怎样写好主题句
主题句在段落中有着举足轻重的作用。因此写好主题句是写好段落的关键。在构思主题句时要注意以下三个方面：
(1)主题句首先应是一个完整的句子，任何词组或修饰成分都不能作主题句。如：More burdens,就不是一个完整的句子。Reading is thought to be a kind of conversation between the reader
and the text，则是一个比较好的主题句。
(2)主题句不应太笼统概括。如：William Shakespeare is great这句话很笼统，对段落如何展开没有指导和限定作用，因而不能作主题句。如改为：William Shakespeare wrote several historic plays,则下文就能围绕莎氏的历史剧展开论述了。
(3)主题句不能太具体。如：The dictionary is small，句子如果太琐碎具体就失去进一步展开的意义了。
(4)各段的主题句应相互照应。在以 No Smoking为题的作文中，各段的主题句分别是：
Smoking is harmful.
Smoking does not only harm the smokers but also people around them.
Therefore,smoking is a bad habit.
第二段的主题句用not only，but also连接词语沟通了上下两段的内容。第三段的Therefore又起了承上启下的作用，使全篇融为一体。
其它培训参考信息：
06年同等学力申硕英语应试指南（写作）二(1)
06年同等学力申硕英语应试指南（写作）四(2)
06年同等学力申硕英语应试指南（写作）四(1)
06年同等学力申硕英语应试指南（写作）三(2)
06年同等学力申硕英语应试指南（写作）三(1)
06年同等学力申硕英语应试指南（写作）五(4)
06年同等学力申硕英语应试指南（写作）五(3)
06年同等学力申硕英语应试指南（写作）五(2)
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