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题型:阅读选择 题类:常考题 难易度:普通

北师大版英语九年级全册 Unit 4 Space. Lesson 12 The Spaceship.同步练习

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    Many scientists think that the earth is getting warmer and warmer. If the change continues, the natural world and human society will face danger. Scientists believe human activity is responsible for the climate change. We produce too many greenhouse gases. They keep heat in the air and make the earth warm.

    Many of the world's governments agree. And they want to solve the problem. So from December 7 to 18, 2009, they held a conference in Copenhagen, Denmark to talk about global warming and climate change.

    Representatives(代表) from 192 countries and regions went to the meeting. Although they have not reached an agreement, the Copenhagen Accord(《哥本哈根协议》) was an important beginning to save the earth. It was made by a small group of countries including China, the US, India, Brazil and South Africa. Some other countries at the conference also showed support.

    What are the key points of the Copenhagen Accord? The accord limits global temperature increases to 20C by 2050 compared to pre-1850. Scientists think it could help the world to avoid serious climate change.

    The accord also says that developed countries must promise to cut greenhouse gas emissions(排放) to the UN by January 31, 2010. The accord asks developed countries to give money to help developing countries.

    Many countries and organizations are disappointed that the conference didn't reach a legal document(法律约定). And they think the accord is not clear enough about its goals.

    African leaders are worried that the goal of a 20C global temperature increase isn't good enough, because it will mean a much higher increase in temperature across Africa. This could cause big problems like food and water shortages across the continent.

    Still, UN Secretary General Ban Ki-Moon believes the conference was an "improvement".

(1)、What do scientists believe is responsible for the climate change?
A、Human activity B、Animals growing C、Plants growing D、Too many people
(2)、What did members of the Copenhagen Meeting NOT talk about?
A、 Economic recovery(经济复苏) B、Global warming C、Climate change D、Cutting greenhouse gas emissions
(3)、What's the attitude(态度)of African leaders towards the goal of a 20C global temperature increase?
A、They are happy about it B、They don't care much about it C、They are worried about it D、They support it
(4)、What does the underlined word "disappointed" mean?
A、忧虑 B、失望 C、害怕 D、难过
(5)、Which is true about the Copenhagen Accord?
A、Developing countries must promise to cut greenhouse gas emissions. B、Both developing countries and developed countries should not produce any greenhouse gases. C、The EU agreed to give $3.6 billion to help developing countries. D、The Copenhagen Accord isn't a legal document, but it's an important beginning to save the earth.
举一反三
       American black bears appear in a variety of colors despite(尽管) their name. In the eastern part, most of these bears have shiny black fur, but in the west they grow brown, red, or even yellow coats. To the north, the black bear is actually gray or white in color. Even in the same litter(胎), both brown and black furred bears may be born.
       Black bears are the smallest of all American bears, ranging in length from five to six feet, weighing from three hundred to five hundred pounds. Their eyes and ears are small and their eyesight and hearing are not as good as their sense of smell. Like all bears, the black bear is timid and rarely dangerous, but if attacked, most can climb trees or cover ground at great speed. When angry or frightened, they are formidable(可怕的) enemies.
       Black bears feed on leaves, roots, fruit, insects, fish, and even larger animals. One of the most interesting characteristics of bears, including the black bear, is their winter sleep. Unlike squirrels and many other woodland animals, bears do not actually sleep through the winter months. Although the bear does not eat during the winter months, sustaining(维持) itself from body fat, its temperature remains almost normal, and it breathes regularly four or five times per minute.
    Most black bears live alone, except during the mating(交配) season. They prefer to live in caves. Baby black bears are born in January or February after a gestation(怀孕) period of six to nine months, and they stay with their mother until they are fully grown or about one and a half years old. Black bears can live as long as thirty years in the wild, and even longer in some nature reserves.

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