Question

【题目】根据短文内容，从下框的A-F选项中选出能概括每一段主题的最佳选项，并在答题卡

上将该选项涂黑。选项中有一项为多余选项。

A. Careful biological research B. The information of global warming C. Solution to the terrifying result D. Greater danger of extinction E. Examples of species in danger of extinction F. A shocking report

【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.

【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.

【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 plants and animals from extinction.

【4】

The scientists studied some regions of the world with a very rich biology. These regions 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 greater danger of extinction.

【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 this 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

【答案】

【1】B

【2】F

【3】C

【4】A

【5】E

【解析】

试题分析:目前，由于人们燃烧煤、油等而排放出的温室气体导致了全球的变热。几周前一群科学家对此做了一份分析报告。他们想要证明是否全球变暖对植物和动物有害，根据他们的发现，在以后的50年内，大约会有25%de 陆地动植物会灭绝。

【1】B考查对文章的理解和归纳能力。本段对全球气温变暖进行解释，和B选项内容相符，选B。

【2】F】考查对文章的理解和归纳能力。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.可知本段介绍了报告的内容，信息词report，选F。

【3】C考查对文章的理解和归纳能力。根据本段末句可知这段提出了这种问题的解决办法，选C。

【4】A考查对文章的理解和归纳能力。由本段第一句话The scientists studied some regions of the world with a very rich biology.可知这是从生物角度的仔细分析，和A选项中biological相符，故选A。

【5】E考查对文章的理解和归纳能力。本段列举了很多即将面临灭绝的动物，由此判断选E。