according to the Chinese Academy of Meteorological Sciences. In fact, while the whole world is getting warmer, the Arctic is warming twice as fast as the rest of the planet. This is called the polar amplification effect（极地放大效应）.

The most direct impact of Arctic warming is the melting of Arctic ice. According to NASA, Arctic sea ice is now disappearing at a rate of 13.2 percent every 10 years. NASA said that if this continues, the Arctic will have no ice by the year 2040.

This has put some Arctic animals, like polar bears, in danger. The ice that the bears live on has shrunk(缩小), the Toronto Star reported.

Melting ice can also cause sea levels to rise in the long term. Since 1993, sea levels have risen at a rate of 3.2 cm every 10 years, the Guardian reported. Some countries, such as Tuvalu（图瓦鲁） in the South Pacific Ocean and Maldives（马尔代夫） in the Indian Ocean, are at risk of disappearing into the sea

8. Which of the following is true?

A. Some countries in the ocean will disappear in 10 years

B. China is the hottest in the northern hemisphere this summer

C. The temperatures in Norilsk used to be lower than this summer.

D. The world gets warmer because of the heat wave in the Arctic

9. What does the underlined word "this" in the third paragraph refer to?

A. The heat wave in the Arctic B. The result of global warming

C. Getting warmer in the world D. The Arctic getting warm faster

10. What may be the result of the melting of Arctic ice?

A. The polar will become dangerous B. Sea levels rise in the long term

C. There will be an end of water shortage D. There will be no ice in the world by 2040

11. What is the main idea of this passage?

A. Heat hits Arctic

B. Arctic animals are in danger.

C. The world became hotter than before

D. Some countries may disappear into the sea

【答案】8. C 9. D 10. B 11. A