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根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。Secret codes (密码)keep messages private。Banks, companies, and government agencies use secret codes in doing business, especially when information is sent by computer.People have used secret codes for thousands of years. 36 Code breaking never lags(落后) far behind code making. The science of creating and reading coded messages is called cryptography.There are three main types of cryptography. 37 For example, the first letters of “My elephant eats too many eels” Spell out the hidden message “Meet me.”38 You might represent each letter with a number, For example, Let’s number the letters of the alphabet, in order, from 1 to 26. If we substitute a number for each letter, the message “Meet me” would read “13 5 20 13 5.”A code uses symbols to replace words, phrases, or sentences. To read the message of a real code, you must have a code book. 39 For example, ”bridge“ might stand for “meet” and “out” might stand for “me.” The message “bridge out” would actually mean “Meet me.” 40 However, it is also hard to keep a code book secret for long. So codes must be changed frequently. 40（）
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阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。Chengdu has dozens of new millionaires, Asia’s biggest building, and fancy new hotels. But for tourists like me, pandas are its top（61）(attract).So it was a great honour to be invited backstage at the not-for-profit Panda Base, where ticket money helps pay for research, I（62）（arrow）to get up close to these cute animals at the 600-acre centre. From tomorrow, I will be their UK ambassador. The title will be（63）(official) given to me at a ceremony in London.But my connection with pandas goes back （64）my days on a TV show in the mid-1980s,（65）I was the first Western TV reporter（66）(permit) to film a special unit caring for pandas rescued from starvation in the wild. My ambassadorial duties will include（67）(introduce) British visitors to the 120-plus pandas at Chengdu and others at a research in the misty mountains of Bifengxia.On mu recent visit, I help a lively three-month-old twin that had been rejected by（68）(it) mother. The nursery team switches him every few（69）(day) with his sister so that while one is being bottle-fed,（70）other is with mum-she never suspects. 67（）
阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。Chengdu has dozens of new millionaires, Asia’s biggest building, and fancy new hotels. But for tourists like me, pandas are its top（61）(attract).So it was a great honour to be invited backstage at the not-for-profit Panda Base, where ticket money helps pay for research, I（62）（arrow）to get up close to these cute animals at the 600-acre centre. From tomorrow, I will be their UK ambassador. The title will be（63）(official) given to me at a ceremony in London.But my connection with pandas goes back （64）my days on a TV show in the mid-1980s,（65）I was the first Western TV reporter（66）(permit) to film a special unit caring for pandas rescued from starvation in the wild. My ambassadorial duties will include（67）(introduce) British visitors to the 120-plus pandas at Chengdu and others at a research in the misty mountains of Bifengxia.On mu recent visit, I help a lively three-month-old twin that had been rejected by（68）(it) mother. The nursery team switches him every few（69）(day) with his sister so that while one is being bottle-fed,（70）other is with mum-she never suspects. 69（）
听下面5段对话，每段对话后有一个小题。从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。例：How much is the shirt?A.£19.15B.£9.18C.£9.15答案是C。（听力内容暂无） How will the woman get back from the railway station?（）
阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。学科&网Hundreds of people have formed impressions of you through that little device(装置) on your desk. And they’ve never actually 41 you. Everything they know about you 42 through this device, sometimes from hundreds of miles away. 43 they feel they can know you 44 from the sound of your voice. That’s how powerful the 45 is.Powerful, yes, but not always 46 . For years I dealt with my travel agent only by phone. Rani, my faceless agent whom I’d never met 47 , got me rock-bottom prices on airfares, cars, and hotels. But her cold voice really 48 me. I sometimes wished to 49 another agent.One morning, I had to 50 an immediate flight home for a family emergency. I ran into Rani’s office 51 . The woman sitting at the desk, 52 my madness, sympathetically jumped up. She gave me a 53 smile, nodded while listening patiently, and then printed out the 54 immediately. “What a wonderful lady!” I thought.Rushing out 55 I called out over my shoulder, “By the way, what’s your name?” “I’m Rani,” she said. I turned around and saw a 56 woman with a big smile on her face waving to wish me a safe trip. I was 57 ! Why had I thought she was cold? Rani was, well, so 58 .Sitting back in the car on the way to the airport, I figured it all out. Rani’s 59 ---her warm smile, her nods, her ‘I’m here for you’ 60 ---were all silent signals that didn’t travel through wires. 53（）
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