四六级主题句作文【一】
山泉叮叮咚咚欢快地唱着歌儿流向远方，一群群鱼儿在泉水里悠然自得的游着。
山泉叮叮咚咚地流向远方，一群群鱼儿在泉水里快活的说着悄悄话。
泉水缓缓地走着
河水唱着歌匆匆地向前奔去.
泉水唱着歌欢快地流淌着。
泉水向前奔跑着
泉水哗哗地向前奔跑
泉水不知疲倦的奔向前方。
轻快的泉水如孩童般顽皮!
岩石间泉水流淌如泪水呜咽!
泉水象似少女喜及而泣的泪水向外涌出
泉水从泉眼里调皮的钻出来。
四六级主题句作文【二】
段落的'主题句也应有两个部分组成，即：主题句=主题+作者对主题的看法或态度，两者缺一不可。假设应试者被要求写一篇有关吸烟的议论文，那么 SMOKING 就是中心段落的主题。请看下面这个主题句：
Smoking is a habit of many men.
该主题句暴露出两个问题：(1作者审题不清;(2作者没有表明对主题的看法或态度。
一般说来，议论文要求应试者阐明自己对某问题的看法或态度。因此当我们拿到议论文的题目以后，要认真审题，权衡某事的利与弊，然后确定我们的立场。
如何构建段落的主题句呢?
拿到议论文的题目以后，经认真审题后，用英文列出你所能想起的与主题有关的例证。我们还用吸烟这个话题为例：
SMOKING
1. Smoking can cause such a disease as lung cancer.
2. Reports say that merely 3 grams of nicotine can kill a large animal.
3. Experts say that smoking one cigarette can reduce one’s life by about 15 minutes and that chain smoking is even more hazardous.
4. Smoking after a meal can also disturb one’s digestive system.
5. Heavy smoking can seriously affect an adult’s sexuality.
6. Smoking does harm to second-hand smokers as well.
7. Smoking makes one’s mouth smell.
8. The life expectancy of smokers is shorter than that of nonsmokers.
9. Smoking in bed may cause fire..
四六级主题句作文【三】
Nowadays, advertisements can be found everywhere in big cities. They shout at us from the television screen and radio loudspeakers, wave to us from every page of the newspaper, signal to us from the roadside billboards all day and flash messages to us in colored lights all night.
Faced with a flood of advertisement, some people wonder whether it is necessary to have such huge sums spent on advertising. They often cite in illustration of it the attractive, but false and deceptive advertisements to which many consumers fall victim. Why don't we stop advertising and use the money to reduce the price of goods? It sounds like a good idea, but they fail to notice the contribution advertising makes to our society. Because the production of a better product to compete for customers' money is the goal of advertisers, customers are thus given a chance to compare their products and get the best and cheapest one. Besides, as the advertisement can provide people with a lot of immediate and detailed information as to the availability of a certain product, or a service or a job, it makes life much more convenient. And another thing we mustn't forget: the fact that we pay so little for our daily newspapers and TV programs is due entirely to the money spent by advertisers.
Advertising performs such a useful service to our society that we can't imagine what would happen if there were no advertisements. (198 words
