难易程度：★★★★
题目题材：卫生保健，环境，经济
gre argument 82题目：
The following appeared in a letter to an editor.
"In many countries, wood is the primary fuel used for heating and cooking(1), but wood smoke can cause respiratory and eye problems, and extensive use of wood causes deforestation, a major environmental problem. In contrast, charcoal, made by partially burning wood(3) in a controlled process, is a fuel that creates less smoke than wood does(2). Moreover, although charcoal costs slightly more than wood, less charcoal is needed to produce the same amount of heat. Therefore, people who use wood as their primary fuel can, without experiencing economic hardship(4), switch to charcoal and can thereby improve their health and preserve the environment(5,6,7)."
提纲：
(1)The author fails to inform us that how many countries are actually using wood as heating and cooking fuel extensively.
(2)The author fails to inform us how much more smoke will be created by burning wood than by burning charcoal to acquire same amount of heat.
(3)The author fails to inform us that how much wood would be used to make enough amount of charcoal which can produce the same amount of heat as wood.
(4)Other expenditures of producing and using charcoal might be very expensive.
(5)The author fails to consider the pollution and other negative effects of producing charcoal.
(6)Switching to charcoal may not achieve the author’s purpose sufficiently.
(7)Other effective fuels which have more advantages might be available.
注：题目中括号里的数字表明这句话体现的是提纲中第几号缺陷。
无论是gre issue还是gre argument，考生都应该养成写提纲的习惯。这种提纲式的gre写作练习可以帮助考生锻炼写作的逻辑性，而gre写作高分最重要的得分依据就是作文的逻辑性要强。
