三、典型段落操练
要求：请撰写下列作文，注意其中论证观点段或对比论证段的写法。
练习一
Directions:For this part，you are allowed 30 minutes to write a composition on the topic Grades Can’t Say Everything.You should write at least 120 words and base your composition on the outline given below:
1.分数并不说明一切。
2.试举例论证。
练习二
Directions:For this part，you are allowed 30 minutes to write a composition on the topic Should Customers Buy Cut-price Products？You should write at least 120 words and base your composition on the outline given below:
1.现在许多人都喜欢买打折商品。
2.而另一些人认为越是打折的商品越不能买。
3.你怎样看？
参考范文
练习一
Grades Can’t Say Everything(https://www.daowen.com)
第一段：提出观点段
For years many people had such thought that grades is of great significance to students.Many of them just work hard with almost no play so as to get a satisfied grade.However，grades can’t say everything.
第二段：论证观点段
The following reasons can support the argument.Undoubtedly，high grades don’t mean that one is excellent in everything.A case in point is that one may has a poor academic performance but show a great talent in music.Furthermore，grades can be affected by many uncertain factors，like student’s psychological state.For example，there are some excellent students who can’t perform well just because they are too nervous.Besides，sometimes some students cheat to get high grades which account for nothing.
第三段：总结观点段
All mentioned above tell us that grades can’t say everything.And it is only an indicator to evaluate one’s comprehensive ability.Therefore，we should make a proper use of grades to assess students’ability.
练习二
Should Customers Buy Cut-price Products？
第一段：提出观点段
When asked whether customers should buy cut-price products，different people will offer different views.Some people take it for granted that they would like to buy cut-price products since a discount is a great appeal.However，others maintain that it’s not a wise and rational idea to buy discount products.
第二段：对比论证段
Those people who hold the first opinion believe they can save themselves a lot of money.In addition，they can use less money to buy more products.However，still others do not agree this.In their opinions，the discount is merely a business means of attracting customers and enhancing their desire of purchasing.Besides，they argue that the discount always tempt customers to buy something unnecessary.
第三段：总结观点段
Weighing up these two arguments，I think customers should be alerter to cut-price products.For one thing，complaints about cut-price products rank first in recent days according to the newspaper.For another，cut-price products are usually not provided with an after-sales service like three guarantees for products.Considering these factors into consideration，we may reasonably conclude that customers should think carefully when buying cut-prices products.