【文章內(nèi)容簡(jiǎn)介】 et rid of bad habits. ( ) 47. What does the underlined word “l(fā)ean” in the first paragraph mean? A. Light B. Pretty C. Thin D. Healthy B. We had known for a long time that flowers of different plants open and close at different time of day. Yet no one really understands why flowers open and close like this at special time. The question is not as simple as we might think, as recent experiments have shown. In one experiment, flowers were kept in constant(持續(xù)的 )darkness. We might expect that the flowers ,without any information about the time of the day, did not open as they usually do. In fact, they continue to open at their usual time. This shows that they have some special ways of knowing the time. Their sense of time does not depend on information from the outside world. It is inside them: a kind of “inner clock”. This discovery may not seem to be very important. However, it is later found that not just plants but animals have this inner clock which control the working of their bodies and influences their activities. Human beings, then, are also influenced by it. Whether we wish or not, it affects such things in our life as our need for sleep or need for food. ( ) 48. Before the experiment arrived at a conclusion（結(jié)論） , peple had thought that the flowers would___________ . A. never open in constant darkness B. change their usual time to open C. open ahead of the time as they usually did D. continue to open at usual time ( ) 49. What’s the purpose of the experiment mentioned in the passage？ A. To show that flowers can open and close. B. To see why flowers can open and close. C. To show people’s interest. D. To see why flowers can open and close at special time ( ) 50. What will happen if we make good use of the “inner clock”? A. We’ll need less sleep or food. B. We’ll be able to sleep as long as we wish to. C. We’ll be able to change our work time when necessary. D. We’ll have more energy to do our work better. C Like the mascotes for huge worldwide events such as the Olympics and the World Cup, the mascot of World Expo is very important for interpreting（解釋） the theme and expressing the culture. The emblems（徽章） and images of past World Expos have turned into the unique intangible legacy. The World Expo mascots have not only bee the representatives of Expo images, but also embody the culture and spirit of hosting countries and cities. Mascot, as the symbol featuring the hosting country, will embody the history,development, culture, concept and social background of the country and will play an important role in the munication in political, eomical and culture fields. Meanwhile, a mascot should also meet the principle of “good looking, easy to understand, easy to remember and easy to use.” And they should be suitable for the creation of licensed products, including stationeries, garment, souvenirs and jewelries. The mascot should be easy to be recreated in graphic（圖解） , soild or electronic media. Here is a vivid example. Its blue curly hair looks like the waves of the sea. Its smile is a sign of the healthy spirit of China. Those thumbsup will wele millions to Shanghai from around the world. It’s Haibao, the mascot of the 2021 Shanghai World Exposition. “It’s very cute,” said GuHui, a school kid. “I want a big toy like the mascot.” Haibao was made by two artists, one from the mainland and the other from Taiwan. The deisgn is about people living together in the city. The designers want it to fit in with the theme of the Shanghai Exposition: Better City, Better Life. ( ) 51. What’re the functions (功能） of mascots for huge worldwide events? A. To interpret the themes of the events and to embody the culture of the hosting country and city. B. To be the representatives of images for those events. C. To have the value of recreation. D. All above. ( ) ’s the meaning of the underlined word “mascot” in the passage? A. 會(huì)徽 B. 口號(hào) C. 吉祥物 D. 主題曲 ( ) 53. What does the first three paragraphs mainly talk about? A. Designing concept of the mascot B. How to design a mascot C. The themes of mascots D. A vivid mascot called Haibao （ ） 54. How many artists designed the mascot? A. 2 B. 3 C. 5 D. 6 ( ) 55. What is the theme of the Shanghai Exposition? A. One world, one dream. B. Better City, Better Life. ever burning flame. D. The celebration of the century.