就是问你这篇文章主要说什么,类似:The passage is primarily concerned with 我整篇文章都知道什么意思,其他题目都做对,就是碰到这种题型就错,不知道有没有人克服这类问题的。 举个例子: Prior to 1965 geologists assumed that the two giant rock plates meeting at the San Andreas Fault generate heat Line through friction as they grind past each (5) other, but in 1965 Henyey found that temperatures in drill holes near the fault were not as elevated as had been expected. Some geologists wondered whether the absence of (10) friction-generated heat could be explained by the kinds of rock com- posing the fault. Geologists’ pre-1965 assumptions concerning heat gen- erated in the fault were based on (15) calculations about common varieties of rocks, such as limestone and granite; but “weaker” materials, such as clays, had already been identified in samples retrieved from the fault zone. Under (20) normal conditions, rocks composed of clay produce far less friction than do other rock types. In 1992 Byerlee tested whether these materials would produce friction (25) 10 to 15 kilometers below the Earth’s surface. Byerlee found that when clay samples were subjected to the thou- sands of atmospheres of pressure they would encounter deep inside the (30) Earth, they produced as much friction as was produced by other rock types. The harder rocks push against each other, the hotter they become; in other words, pressure itself, not only the (35) rocks’ properties, affects frictional heating. Geologists therefore won- dered whether the friction between the plates was being reduced by pockets of pressurized water within the fault that push the plates away from each other
1.The passage is primarily concerned with
A.evaluating a method used to test a particular scientific hypothesis B.discussing explanations for an unexpected scientific finding C.examining the assumptions underlying a particular experiment D.questioning the validity of a scientific finding E.presenting evidence to support a recent scientific hypothesis -- by 会员 waterlemonseed (2011/5/1 13:09:19)
这类型的题目是考文章主旨:你看,文章是不是说了这么一个事~:1965年前的时候有人说两个板块会摩擦生热,有个人试了一下,发现事实不是这样的(unexpect)。然后有人来解释说可能是clay造成的。又有个人又进行了个实验,发现和clay又无关。结果其他人就继续猜........这样这个主旨题是不是就很明显了?没很具体的说任何一个解释,而是一个一个的提出,一个一个的讨论否定。 |