气候危机及其应对 一、阅读理解 1 Bananas might go away It’s hard to turn down a tasty banana. They taste good and you don’t have to wash them before eating them. However, British scientists say that the fruit may disappear by 2050. One reason for this is climate change. Scientists at the University of Exeter collected data from 27 countries and regions that produce 86 percent of the world’s bananas. They found that climate change has improved growing conditions in 21 of these countries. In the past 60 years, the average yield has reached 1.37 tons of bananas per hectare. However, if temperatures keep rising, this advantage will disappear. Ten of the countries, including India, the world’s biggest producer of bananas, will produce fewer bananas. By 2050, the fruit may die out. Shouldn’t bananas grow more easily if it’s hotter outside In fact, the perfect temperature range for growing bananas is between 24 and 32 C. If temperatures get too high, they will stop growing. Diseases are another danger to bananas. Unlike other crops, the bananas we grow come from shoot cuttings rather than seeds. This means that all banana plants have the same genotype. In other words, if a disease is able to kill one plant, it could kill them all. One serious disease is called Panama. Caused by fungus in the soil, it spreads easily. It has spread across South Asia, Africa, the Middle East, and Australia. If one banana plantation suffers from the disease, it will take 30 years until it is able to grow bananas again. Scientists have yet to find a cure for this disease. 1. What does the underlined word “this” in Paragraph 2 refer to A. People’s love for bananas. B. The taste of bananas. C. The convenience of eating bananas. D. The future disappearance of bananas. 2. What might happen if temperatures keep going higher A. More countries will start to grow bananas. B. Bananas will grow better in most countries. C. Bananas will not be able to grow any more. D. Bananas won’t be as tasty as before. 3. What does Paragraph 5 tell us A. What diseases bananas may suffer from. B. How bananas are grown. C. How diseases can easily kill bananas. D. Which diseases can kill bananas. 4. What can we know from the last paragraph A. Some banana plantations may disappear because of Panama. B. It won’t take long for scientists to find a cure for Panama. C. Bananas are widely grown in Africa and Middle East. D. It’s not easy to grow banana trees in South Asia. 5. What’s the purpose for the writer to write the passage A. To offer tips for growing bananas. B. To explain why bananas may die out. C. To show the difficulties of growing bananas. D. To describe bananas' growing conditions. 2 In English, “as dead as dodo” means someone or something is totally, unquestionably dead. But the dodo, stubby (矮，胖的) bird that has been extinct (灭绝的) for hundreds of years, may not be dead anymore! US company Colossal Biosciences said it would try to bring the dodo back to life. The bird used ... ...
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