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作者:代考业务   来源:谷歌搜索   评论:0
内容摘要:Paragraph 2: This was before the steam locomotive, and canal building was at its height. The companies building the canals to transport coal...

Paragraph 2: This was before the steam locomotive, and canal building was at its height. The companies building the canals to transport coal needed surveyors to help them find the coal deposits worth mining as well as to determine the best courses for the canals. This job gave Smith an opportunity to study the fresh rock outcrops created by the newly dug canal. He later worked on similar jobs across the length and breadth of England, all the while studying the newly revealed strata and collecting all the fossils he could find. Smith used mail coaches to travel as much as 10,000 miles per year. In 1815 he published the first modern geological map, "A Map of the Strata of England and Wales with a Part of Scotland," a map so meticulously researched that it can still be used today.

  解析:第一步,我们看到infer判断为推断题。第二步,审题得到的信息点是第2段和canal building。第三步,回到原文定位,相关句为第一句,This was before the steam locomotive, and canal building was at its height.出现了before steam locomotive,有时间对比,canal building was at its height , at one's height处于顶峰。那第四步我们就可以逆向推理到after steam locomotive,canal building 下滑,判定四个选项中只有B符合我们的推测,所以正确选项为B,而ACD都是迷惑你的无关选项。

  逆推比较好理解,而正推同学们觉得难的原因是不好把握度,很容易加上自己的主观判断就推过了,这时候我们可以把它当做事实信息题去做,因为你要基于原文进行推测,那么讨论的角度和情感色彩要与原文的保持一致,所以做题的另外一条原则是don't contradict with the main idea of the passage,推测的时候我们可以用演绎或者归纳的方法得出正确答案,也可以借用文章主旨和情感态度选出正确答案,看如下例题:

  10. According to paragraph 4, what do the 2003 Global Surveyor data suggest about Mars?

  ○Ancient oceans on Mars contained only small amounts of carbon.

  ○The climate of Mars may not have been suitable for the formation of large bodies of water.

  ○Liquid water may have existed on some parts of Mars' surface for long periods of time.

  ○The ancient oceans that formed on Mars dried up during periods of cold, dry weather.

  Paragraph 4: These ideas remain controversial. Proponents point to features such as the terraced "beaches" shown in one image, which could conceivably have been left behind as a lake or ocean evaporated and the shoreline receded. But detractors maintain that the terraces could also have been created by geological activity, perhaps related to the geologic forces that depressed the Northern Hemisphere far below the level of the south, in which case they have nothing whatever to do with Martian water. Furthermore, Mars Global Surveyor data released in 2003 seem to indicate that the Martian surface contains too few carbonate rock layers-layers containing compounds of carbon and oxygen-that should have been formed in abundance in an ancient ocean. Their absence supports the picture of a cold, dry Mars that never experienced the extended mild period required to form lakes and oceans. However, more recent data imply that at least some parts of the planet did in fact experience long periods in the past during which liquid water existed on the surface.多伦多代考|美国GRE代考|国外代考|温哥华托福代考


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