Question

根据文章，从下框A-F选项中选出能概括每一段主题的最佳选项，选择中有一项为多余。

A.A careful analysis biologically B.What is global warming? C.Solution to the terrifying result D.Greater danger of extinction E.Many shocking things were found. F.A shocking report

 
【小题1】
The earth is getting warmer. People burn coal, oil and gas and this produces carbon dioxide, methane（沼气）and nitrous oxide. These gases, called “greenhouse gases”, prevent the heat of the sun from leaving the earth’s upper atmosphere and this makes the earth warmer
【小题2】
A few weeks ago a group of scientists produced a report about global warming and the natural world. They wanted to find out if global warming was dangerous for plants and animals. According to what they found, the scientists say that during the next 50 years about 25% of land animals and plants will become extinct. More than a million plant and animal species will be extinct by 2050.
【小题3】
More than 10% of all plants and animals will become extinct. It is too late to save many plants and animals because of the greenhouse gases that are already in the atmosphere. But the scientists say if we control greenhouse gases now, we could save many more plant and animals from extinction.
【小题4】
The scientists studied some regions of the world with a very rich biology. These were Europe, Australia, Central and South America, and South Africa. Their studies showed that species living in mountainous areas had a better chance of survival because they could move uphill, to get cooler. In flat areas, such as deserts, plants and animals would have to move a very long distance to get cooler, so they are in grater danger of extinction.
【小题5】
The scientists found that half of the 24 species of butterflies they studied in Australia would soon become extinct. 60% of the species in the Kruger National Park in South Africa would also die out, and more than 100% of the 300 South Africa plant species they studied would also become extinct. One of the plants in danger of extinction is the national flower of South Africa, the King Protea. They studied 163 tree species in the Cerrado region of Brazil and found that 70 would become extinct. Many of the plants and trees that live in the region live nowhere else in the world. In Mexico, they studied 1,870 species and found that more than 30% of these were in danger of extinction.

Answer 1

【小题1】B
【小题2】F
【小题3】C
【小题4】A
【小题5】E

解析试题分析：
【小题1】这段是对全球气温变暖进行解释。选B
【小题2】从这段的内容和第一句话A few weeks ago a group of scientists produced a report about global warming and the natural world.可知是关于一个令人吃惊的报告。选F。
【小题3】从这段的内容可知是对可怕结果的解决办法。选C
【小题4】从这段的第一句话：The scientists studied some regions of the world with a very rich biology.可知是从生物角度的仔细分析。选A
【小题5】这段里面出现了很多数据，都是发现的让人震惊的事情。选E
考点：考查信息匹配
点评：本文主题是全球气温变暖的情况和一些惊人的事实，主要是找出适当的段落主题，要学生有很强的归纳能力。