Read the following article and select the best answer. Article: Recently, some concerns have been raised about the health of the world's banana plants. Many media reports have said that bananas may completely disappear in the coming ten years. Bananas are one of the world's most important food crops. They are also the fourth most valuable export. Bananas do not grow from seeds. Instead, they grow from existing plants. Bananas are threatened by disease because all the plants on a farm are copies of each other. They all share the same genetic weaknesses. For example, the Cavendish banana is most popular in American markets. It is an important export crop. However, some kinds of fungus organisms easily infect the Cavendish. Black Sigatoka disease affects the leaves of Cavendish banana plants. The disease is controlled on large farms by putting chemicals on the plant's leaves. Farmers put anti-fungal chemicals on their crops up to once a week. Another fungal disease is more serious. Panama disease attacks the roots of the banana plant. There is no chemical treatment for this disease. Infected plants must be destroyed. Panama disease has affected crops in Southeast Asia, Australia and South Africa. There is concern that it may spread to bananas grown in the Americas. This could threaten an important export product for Central and South America. The International Network for the Improvement of Banana and Plantain, whose headquarter lies in France, supports research on bananas. The group says that more research must be done to develop improved kinds of bananas. The group says that fungal diseases mainly affect only one kind of banana. In fact, there are five-hundred different kinds of bananas. The United Nations Food and Agriculture Organization says the Cavendish banana represents only ten percent of world production. The UN agency says farmers should grow different kinds of bananas. This protects against diseases that affect only one kind. Experts warn that disease may cause the Cavendish banana to disappear. This has already happened to one popular banana because of its... Question: According to the passage, which information is right? - The Cavendish banana can be mainly imported from North America and Europe. - Fungal diseases mainly affect the Cavendish banana. - The Cavendish banana won't die out in the future. - Panama disease affects the leaves of banana plants.
Fungal diseases mainly affect the Cavendish banana.
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Read the following article and select the best answer. Article: Housing Price in China has always aroused heated discussion among property developers and ordinary Chinese. To many property developers and local government officials, housing price in China is still low compared with many developed countries. However, the average housing price in the United States is only 8, 000 yuan per square metre, while in China, it is even higher than that in the United States. "This shows that there are some bubbles in Chinese real estate market," the International Finance News reported. Although the average price of residential houses in the United States, after changed to RMB, is about 8, 000 yuan per square metre, the houses in the US are not sold in terms of building area, as most Chinese property developers do when they sell their houses. If the US property developers sell their houses according to the building area, then the housing price will be even lower than 8, 000 yuan per square metre. In most big Chinese cities, such as Beijing, Shanghai and Shenzhen, houses are sold at a price even higher than those in the US. The high housing price in large cities in China proves that Chinese real estate market does have some bubbles. Moreover, Chinese houses cannot be compared with houses in the US in terms of building quality, environment and supporting facilities. Furthermore, it should be noted that American people's average income is several dozen times higher than that of Chinese people. How can the Chinese afford to buy a house which is even more expensive than that sold in the US? At the beginning of 2007, Chinese government issued a set of policies that aimed to benefit the public. Now in order to reduce the high housing prices, the government can regulate the real estate market by raising tax on property industry and controlling the release of loans and lands to property developers. Meanwhile, the government should allow people to build more houses through various fund-raising channels, such as funds collected from buyers or raised by working units. By applying these multiple... Question: How does the writer feel about the problem of high housing price in China? - Encouraged and confident. - Satisfied. - Hopeless. - Concerned but optimistic.
Concerned but optimistic.
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Read the following article and select the best answer. Article: Many cities around the world today are heavily polluted. Careless methods of production and lack of consumer demand for environment friendly products have contributed to the pollution problem. One result is that millions of tons of glass, paper, plastic and metal container are produced, and these are difficult to get rid of. However, today, more and more consumers are choosing "green" and demanding that the products they buy should be safe for the environment. Before they buy a product, they ask questions like these, "Will this shampoo damage the environment?" "Can this metal container be reused or can it only be used once?" A recent study showed that two out of five adults now consider the environment safety of a product before they buy it. This means that companies must now change the way they make and sell their products to make sure that they are "green", that is, friendly to the environment. Only a few years ago, it was impossible to find green products in supermarkets, but now there are hundreds. Some supermarkets' products carry labels to show that the product is green. Some companies have made producing of clean and safe products their main selling points and emphasize it in their advertising. The concern for a safer and cleaner environment is making companies rethink how they do business. No longer will the public accept the old attitude of "Buy it, use it, throw it away, and forget it." The public pressure is on, and gradually business is cleaning up its act. Question: What would be the best title for the text? - Business and People - Business Goes Green - Shopping Habits Are Changing - Supermarkets and Green Products
Business Goes Green
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Read the following article and select the best answer. Article: Sitting at a desk in a classroom all day can be pretty boring. The teachers at Ward Elementary in Winston -Salem,North Carolina ,picked up on that and traded in their students' desks for exercise bikes as a part of their Read and Ride program! The Read and Ride program began five years ago.One classroom has enough bikes for every student in any given class,and throughout the day teachers bring in their students to the room to ride them and read their books. Even regular classrooms have one bike in the back of each room for students who just can't sit still to use to help them burn energy in a good way. Students love being more active! Teachers enjoy seeing students eager to read.Parents appreciate stronger,smarter children.Headmasters value this effective and cost-free program."Riding exercise bikes makes reading fun for many kids who get frustrated when they read.Thus,they have a way to release that frustration while they ride,"said Scott Ertl,who started the program."As we can see,everyone wants to promote literacy and lose weight! But many students who are overweight struggle with sports and activities since they don't want to always be the last or lose with others watching on the playground.On exercise bikes,however,students are able to exert themselves at their own level--without anyone noticing when they slow down or take a break." As it turns out,not only are the bikes helping the students burn calories,they're also helping them learn better and stay focused.At the end of the school year the school analyzed testing data and found that students that spent more time reading and riding did more than twice as well on reading tests than their fellow students who spent the least time in the program. Question: According to Scott Ertl,riding exercise bikes _ . - is the least expensive way for exercise - call benefit overweight students in both ways - is the best way to build up students'body - is a good way to avoid being watched by teachers
call benefit overweight students in both ways
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