This last criterion is more easily met in dating marine sediments , because dating of only a small number of layers in a marine sequence allows the age of other layers to be estimated fairly reliably by extrapolation and interpolation. By contrast, because sedimentation is much less continuous in continental regions, estimating the age of a continental bed from the known ages of beds above and below is more risky.
2.d
3.e
On the basis of snow-line elevations , however, it has been concluded that the climate then was not necessarily wetter than it is now, but rather that both summers and winters were cooler, resulting in reduced evaporation.
4.e
5B
In aridand semiaridregions, on the other hand, the small number of lakes and the great distances between them reduce the possibilities for correlation. Moreover, since lake levels are controlled by rates of evaporationas well as by precipitation , the interpretation of such levels is ambiguous. For instance, the fact that lake levels in the semiarid southwestern United States appear to have been higher during the last ice age than they are now was at one time attributed to increased precipitation.
6.d
Third, at least some of the material must have retainedthe signal unaffected by subsequentchanges in the environment.
7d
First, the material—rocks, lakes, vegetation , etc.—on which the method relies must be widespread enough to provide plenty of information, since analysis of material that is rarely encounteredwill not permit correlation with other regions or with other periods of geological history.
8a
In temperateregions, there are enough lakes for correlations between them to give us a reliable picture. In aridand semiaridregions, on the other hand, the small number of lakes and the great distances between them reduce the possibilities for correlation. 这次是纯慢慢得做的，还是错了一道。。。。主旨题
1’23_1’32_1’21_1’13_1’27 1. The prince of Arabia died, and an election will be made in city E. 2. the control of state and government would suffocate the economy. 3. what would happen if … be the dictator of the Arab world.
速度： 1.1‘10’ 2.1‘30’ 3.58‘ 4.1’08‘ 5.1’04‘越障：又是政治文章啊。。。政治文章对于我这种不看新闻的人不来塞啊~~s首先就不知道 Tunisia是个神马东西。。。。 1.Egypt plan to have election next month.The prince of Sultan die. 2.All the American Forces have to leave these countries by the and of the year. there will be a new relations 3.The Arab countries are better shaped than before and the economic will grow faster with the new government. 4.there are many countries will have election among the Arab world. 5.4.American power become less effective in Arab world.Because people in those countries are dislike American from heart. 6.The Arab prefer West model to follow, however, there is still a long way to go.
[越障] 10’35 The political situation in Arab after Qaddafi's death(election in Egypt,etc.)... Western forces will quit from Arab and the consequences... the form of new government... Islam may gain power(?totally over my head T_T)... the long-term influence on Arab countries is good and they are likely to develop towards West mode...
[OG] 2、A×→C Main Idea.错因：没有留意迷惑选项的细微差别。A only refers to one method, and the author in P1 first talk about criteria which means the requirements. 4、D×→E inference，下一段会讨论什么。偶暂时总结出应该顺着作者的分论点写下去，即One very old method...Another problematic method is...可得正确选项的 A third method，也就是用不着自己强加个结尾来使文章完整。（?） 5、C×→B logical structure，举例的作用。错因：定位准了，但没找准原文和选项的逻辑关系 6、C×→D inference。错因：定位失败。第二、第三个标准都讲到了题干的environmental signal，不过这里考的是第三个标准。应回文中找优点，然后取非。
越障回忆：越障只回忆了前半段。后半段，惭愧的说，我睡着了……囧！ Arab is turbulent→West come out of the Arab→Arab想更好就要政府更开放→These changes appears in Arab recently→Islamic extremity在Arab中出现→但不会是主流？
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发表于 2011-10-31 09:03:23
