(B)

　　Many years before the United States was founded(建立), Americans had already invented barbecues. But the first barbecues, in fACT ,were the invention of the Taino Indians of Haiti, who dried their meat on raised frames(架子)of sticks over fires. Spanish explorers spelled the Taino word as barbacoa, and as time passed, English settlers along the Atlantic coat had their own barbecues.　　One summer day in 1773, Benjamin Lynde, a citizen of Massachusetts, wrote in his diary, “Fair and hot ; Browne;hack overset.” That is , on a bright and hot day he went to the Brownes to attedn a barbecue, and his carriage(马车)fell over. It shows that the barbecue had its social occasion by that time. Large animals would be roasted whole on frames over hot fires, and neighbours would be invited to dinner.　　In later centuries, as settlers moved to the west, the barbecue went along with it, reaching an especially large size in Texas, where a pit (坑)for fuels(燃料) such as tree branches might be over ten feet deep. Today , the barbecue grills(烧烤架)which are fueled by charcoal(木炭) or electricity are likely to be small and easy to move , and can cook only parts of an animal at a time, but people still have barbecues out of doors and always invite their neighbours or friends over.

　　44.Who invented the barbecues first in history?　　A.American people. B.Taino Indians. C.Spanish explorers. D.English settlers.

　　45.The second paragraph mainly tells us that the barbecue_______________.　　A.is only held on a hot sunny day B.welcomes people who keep diaries　　C.is held both indoors and outdoors D.has its social occasion for over 200 years

　　46.The underlined expression “ social occasion” can be best translated into______________.　　A.社交功能 B.社会福利 C.社会地位 D.社会背景

　　47.The following are all the barbecue ways EXCEPT __________________.　　A. drying meat on raised frames of sticks over fires　　B. roasting a whole animal over a pit full of burning tree branches　　C.cooking parts of animals over fires on grills fueled by charcoal　　D.heating meat in the bright and hot daylight

　　(C)

　　A Solar-powered Plane---Lowcarbon　　Earlier this month, a solar-powered (太阳能动力的)plane called Lowcarbon took off to the sky for the first time. It has passed an important test on the way to travel around the world.　　Lowcarbon took off from an airport in Switzerland(瑞士)at 45 km an hour. It slowly rose into the sky.　　“There has never been an airplane so big, so light, using so little energy,” said Bertrand Piccard, a leader of the project.　　During the 90-minute flight, Lowcarbon did several turns. It climbs nearly 1.6 km above the countryside.　　Engineers plan to test a night flight in July. Then they will use the results of the tests to build a second plane. They plan to travel around the world in that plane in 2012. “We want to fly it day and night with no fuel,” Piccard said.　　Piccard and pilot Andre Borschberg will take Lowcarbon around the world .They will make a few stops to change places and rest after a long time in the air----and to show off their aircraft.　　Lowcarbon flies at 70 kph on average(平均). That is faster than a bike and slower than a car. The pilots will keep it in the air for up to five days at a time.　　We Are One---“Expo Through My Eyes”　　Sharing offers you more happiness. To celebrate the 2010 Shanghai World Expo, China Daily invites you to share what you’ve seen, heard and experienced at the 6-month international event or Expo-related stories in English. Whether you are an Expo volunteer, a reporter, or a tourist , we’d like you to share with us your Expo experience, as seen through your eyes. So if you would liketo contribute(投稿)，please join us today in sharing the joy!　　Topic: 2010 Shanghai World Expo　　Language: English only　　Length: No more than 1,000 words-　　Content: Stories with photos are necessary.　　Duration: May 1,2010---October 31,2010　　Email-box: expo@chinadaily.com.cn　　Reward: In addition to the SATisfACTion of supporting our work,　　---your stories will be published on China Daily’s website;　　---you will go in a lucky draw for a prize.

　　48.Which of the following information about the plane Lowcarbon is NOT true?　　A. It can fly at 70 km an hour. B.It is solar –powered.　　C.It has passed a night-flight test. D.It is slower than a car.

　　49.Lowcarbon is a special plane because________________.　　A.it’s made in Switzerlland B.it has travelled around the world　　C.it can do turns in the sky D.it’s big and light, but uses little enegy

　　50.The purpose of the second article is to________________.　　A.encourage us to visit Shanghai Expo B.ask us to be volunteers for Shanghai Expo　　C.invite us to write stories about Shanghai Expo D.tell us to get the lucky prize of Shanghai Expo

　　51.Your stories about the 2010 Shanghai Expo for China Daily___________.　　A.can be in Chinese B.don’t need to have photos　　C.must be given by post D.should be handed in by e-mail