第二十九单元 主题句作文Topic Sentence Composition
29．1 Introduction
This is the most common composition practised in CET-4．Usually the title and the topic sentences of each paragraph are given．You are required to write exactly according to the title．You must use the given topic sentences．
Sample Test Item：
Directions：For this part，you are allowed 30 minutes to write a composition about“Television ”in three paragraphs．
You are given the first sentence of each paragraph an dare required to develop the idea in completing the paragraph．Your composition should be about 100words，not including the words given． Remember to write clearly．
Television
1）Television presents a vivid world in front of us．
2）Television can also play an educational role in our daily life．
3）However，television can also be harmful．
29．2 Analysis and Advice on How to Deal with the Essay
1）Read the directions carefully，and make sure that you understand the requirements；
2）Find out the relationship between the title and the topic sentences．
From the above analysis，we know that we may use the technique of examples to illustrate the advantages and disadvantages of television in our daily life．
3）Thoroughly examine the topic sentences，then pick out keywords in each topic sentence；
e．g．The key words of each topic sentence in the above writing are：“vivid world”，“educational role in daily life”，“harmful”．
4）Find out the relationships between the topic sentences；
From the given topic sentences，we can see that the second topic sentence is a further development of the first one．The transitional word“also”shows that the two topic sentences are parellel．So we have to write the advantages of television in the first two paragraphs—in the first paragraph，write“vivid world”，while in the second，“educational role”；In the third topic sentence，the transitional word “However”changes the point of view from positive“vivid”，“educational”to negative“harmful”．Thus，we should write the disadvantages of television in the paragraph．
Model Essay 29-1
Television
Television presents a vivid world in front of us．On television，we can watch exciting football matches or Olympic marathons．We can“travel”to New York to visit its famous monuments and museums or to London to attend the royal wedding．We can also“go”to a concert with a cup of coffee in one hand． With a TV set，we can take part in many events without leaving the house．
Television can also play an educational role in our daily life．Besides regular courses to TV university students，television also offers various educational programmes for different viewers．Children like“Tan gram”；young people like the“ABC of Computers”；and elderly people like“Life and Health”．Of all the educational programmes，“English on Sunday ”is my favourite．
However，television can also be harmful．It hurts our eyes and can cause nearsightedness．Watching TV too much influences our sleep and work and cuts down children's study time．Furthermore，some TV programmes are ideologically incorrect．In short，we should watch TV selectively and regard it as our servant，not our master．
Writing Assignment for Unit 29
Directions：For this part，you are allowed 30 minutes to write a composition about “Advertisement” in three paragraphs．You are given the first sentence of eachparagraph and are required to develop the idea in completing the paragraph．Your composition should beabout 100 words，not including the words given．Remember to write clearly．
Advertisement
1）Advertisement appears everywhere in modern society．
2）Advertisement can be a service to people．
3）However，advertisement also has its problems．
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