如何写主题句

,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,如何写主题句,写作专题2,1,Negative/unhealthy Habits of College Students,很多大学生有不健康的生活习惯,这种不健康的生活习惯的危害。,如何纠正,2,判断下面哪个句子是主题句,Nowadays with the development of technology and economy, Chinese become more and more wealthy, and that lead to some unhealthy habits of college students.,As far as I am concerned, if you go to bed too late, the second morning, you will not get out of bed as usual.,Nowadays many college students have unhealthy life habits.,Everyone want to be a healthy student, so we will correct these unhealthy habits.,3,主题句用来概括段落的内容，表明作者的观点，或指出作者的写作意图。,主题句必须主旨鲜明，言简意赅，而且也必须决定和控制后面的续写内容 .,4,主题句通常由两部分组成：一部分是,主题（topic）,，另一部分是作者的观点，也就是用来限制段落中其他句子的,段落中心思想（controlling idea）,。,（1）People take part in sports,for various reasons,.,（2）Grades,are of great importance for most high school students,.,（3）,Ever since early this century,electricity,has become an essential part of our modern life.,5,【练习】,根据下列段落内容，选择适当的主题句,1、_ His eyes were bloodshot and teary. Besides, his hands shook when he lit a cigarette; and he coughed so seriously at night that he couldnt even fall asleep. As a result, his wife persuaded him to see a doctor as soon as possible.,A. Mr Smith did a bad job.,B. Mr Smith did not look healthy at all.,C. Mr Smith seemed to be in trouble.,6,2、_ Half of the people he had invited came an hour early. They spoiled drinks on his furniture and played cards on his bed. Then, someone accidentally set the curtains on fire. After they all finally left, it took him three hours to clean up.,A. His party was a mess.,B. His party was a success.,C. He couldnt sleep last night,7,主题句对段落的,限制作用,Nowadays, unhealthy habits of college students have increasingly become a common concern of the public.,很多大学生有不健康的生活习惯，例如：晚睡、过度消费、沉溺游戏,8,Nowadays, unhealthy habits of college students have increasingly become a common concern of the public.,电视、报纸一直在讨论，,为什么会成为一个普遍关注的话题呢？危害很大。,9,主题句对段落的,限制作用,（1）时间限制,，如：,Micro-blogs are becoming more and more popular in recent years.,展开这个段落时，应着重讲解微博在,最近几年间,的发展情况。,（2）地点限制,English is gradually becoming a must in China.,展开这个段落时，应着重讲解英语,在中国,的重要性是怎么日益上升的。,（3）数量限制,A micro-blog is useful in many ways.,写这个段落时，不能只强调微博某一方面的用途，至少要列举两三种才能不使内容显得贫乏。,（4）侧重点和情感色彩的限制,Some people say on-line chatting is boring. 有人说网上聊天很无聊。,Some people say on-line chatting is harmful for us teenagers. 有人说上网聊天对我们青少年有害。,注意，如果分别以这两个句子作为主题句，写出来的段落肯定是大不一样的,10,主题句1,很多大学生有不健康的生活习惯,Many students of universities have some unhealthy habits.,It can be noticed that there are some unhealthy habits among young people, especially college students.,句式复杂,11,这种不健康的生活习惯的危害。,These bad habits are very bad for college students,These bad habits are very harmful for college students.,The negative effects of unhealthy life habits are obvious.,Apparently, these bad habits may generate negative impacts.,用词复杂,12,如何纠正,As far as I am concerned, we should revise these unhealthy habits.,Correct/get rid of,There are various ways in which we can cultivate students good habits.,In view of the seriousness of this issue, its time for us to take effective measures.,13,思路,首段：现象描述（正面） = 引出话题 + 具体描述 + 总结话题,二段：问题分析（危害）= 主题句 + 危害1（当前+未来）+危害2（自身健康）+危害3（他人）,三段：建议措施= 主题句+建议1（意识）+建议2（发动群众）+展望未来,14,范文,On the present-day campuses, it can be seen that there are more unhealthy habits among college students than ever before. Typical examples of these are staying up late, excessive consumption and addiction to a variety of games. As a result, how to help them to cultivate positive habits has become a matter of concern.,15,Apparently, these unhealthy habits brought them,some negative effects not only physically but,mentally. To begin with, some students lose themselves,in computer games day and night, which is harmful to,their health. Even some of them commit crimes through,computers. In addition, due to the too much free time,some do not know how to make most full use of their,spare time, they go shopping all days but causing,excessive consumption.,16,From my perspective, there are several ways to cultivate,students good habits. Firstly, college students should be,aware of the importance of study and making full use of,time to do something useful. Secondly, students should,enhance the awareness of what the healthy life is. Only,by doing so, can we hope to enjoy their colorful and,healthy life in Ivory Tower. (I am convinced that if we,spare no effort to get rid of these bad habits, we will,find pleasure and some academic fulfillment in our life. ),17,