GRE argument 106题目：
The following editorial appeared in a newspaper in the country of Solaria.
"The Eliot Valley region was primarily agricultural twenty years ago. In the past twenty years, however, many computer-chip manufacturers have opened factories there. A recent study found that water pollution in the region was worse than in any other region in the country(1,2). Moreover, the computer-chip factories, which use large quantities of water to manufacture the chips, are probably responsible for the low levels of water in the region's lakes and reservoirs(3). Therefore, if the region's computer-chip makers had limits placed on the amount of water(4) they could use, water quality would improve(5)."
(1)The author unfairly assumes that it is the computer-chip factories that resulted in the water pollution.
(2)The author fails to inform us the level of water pollution twenty years ago.
(3)Other explanations could also account for the low levels of water in lakes and reservoirs.
(4)The proposed limitation on the amount of water used may not necessarily ensure improving of water quality.
(5)Water quality is influenced by many factors, thus carrying out the limitation alone may not sufficiently improve water quality.
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。