In a polluted area around the Great Lakes, scientists studying bird populations have observed a drop in the number of both herring gulls and terns. Both bird species prey on the same type of fish, whose numbers are also being negatively affected by pollution. However, the tern population has seen a much sharper decrease than the herring gull population. Scientists have concluded that the herring gulls have a higher survival rate because they are able to find alternative sources of food, including garbage dumps along the shoreline.
Which of the following, if true, would provide the best piece of evidence in support of the researchers’ conclusion?
（A） A survey shows that bird populations in areas around the Great Lakes have shown similar decreases （B)A related study finds that fish populations in the Great Lakes are affected as much by other predators as by pollution (C)Maps of the area reveal that the largest garbage dump in the area is located 3 miles inland from the lake (D)Blood tests performed on the gulls reveal high levels of the types of fatty acids generally found only in human food (E)Analysis of water in the area where the birds nest reveals that toxin levels are actually slightly below fish tolerance levels
答案是D
High School Principal: There is little doubt that extra-curricular activities such as sports teams waste the time students could better spend on academics. Close to half the students in this school barely passed the math and science portions of the graduation exam. Clearly, our attention needs to be refocused. In order to improve our school’s performance on the graduation exam, I propose that we discontinue all school sports beginning next year. EACH of the following, if true, casts doubt on the principal’s conclusion that discontinuing school sports will improve academics EXCEPT ? A surplus in last year’s school budget was spent on transportation for the football team rather than on buying a new available edition of the school’s science textbook. ? Most members of school sports teams were in the half of students that easily passed the graduation exam. ? The principal does not have a specific plan for re-focusing the school’s resources on academics. ? The school’s math and science textbooks have been outdated for two years. ? Even though the principal claims that half the school’s students “barely passed” the graduation exam, they did meet the state’s minimum requirements for graduation. 答案是A 我不知道怎么分析
语法： A controversial study suggests that the violent behavior displayed by some teenagers who play several hours of video games a day is due to developmental damage to the frontal lobe region of the brain rather than the absorption of any specifically violent content.
(A)is due to developmental damage to the frontal lobe region of the brain (B)are due to developmental damage to the frontal lobe region of the brain (C)is due to damage to the developmental frontal lobe region of the brain (D)are due to developmental damages to the brain’s frontal lobe (E)is due to developmental damages to the brain’s frontal lobe region 答案是A。。我选了C，E也有点对。。不明白。。
第一题 污染情况下G鸟和T鸟都受影响因为都吃鱼，该鱼的数量因为污染减少，但是T鸟数量下降的厉害的多，科学家结论：因为G鸟除了吃鱼还能吃垃圾，求证明（支持） A 无关 B 无关 C 最大的垃圾堆在3英里外- 也不能SUPPORT D 血液测试发现G鸟体内有人类食物的痕迹- 支持G鸟可能吃了垃圾里人丢弃的食物 E 水毒性还不是太高，鱼还能顶住 - 不能支持
第二题 问的是EXCEPT A 多余经费更多投资在体育方面而不是买教材了，不能WEAKEN B 体育队员们都是轻松考试通过的人 - WEAKEN C 校长没有明确计划不知道怎么个REFOCUS法- WEAKEN D 教材严重过时了 - 其他原因导致学习差 - 他因削弱WEAKEN E 虽然一半人是‘勉强通过’，毕竟也通过了，都达到州里的毕业要求了 - WEAKEN
语法： C: "developmental frontal lobe region" doesn't make sense. it's the damage that is developmental, not the frontal lobe region of the brain.
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发表于 2011-7-7 13:20:15
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