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B A lift is very useful. It looks like a small room. It goes up and down all day. Sometimes a worker stands in the lift. He or she operates(操作) it up and down. In modern lifts there's no worker. People walk in. They know what floor they want to go. They push a button(按钮)and the lift goes to that floor. It's very fast and easy. Lifts are very important to us. Why? Think about a tall building. Maybe it has twenty floors. Maybe it has fifty or more. Who can walk up all the stairs(楼梯)?Maybe people can climb them once. Can someone climb thirty floors to an office every day? Can small children walk up to their rooms on the twenty-four floor? Can their mothers or fathers carry food up to all those stairs? Of course not. We can have very high buildings because we have lifts. We could not have all the beautiful tall buildings without lifts. Because it is too tired for people to climb the stairs every day. 根据短文的意思回答问题或完成句子。 6. What is a lift like? ____________________________ 7. What does a worker do when he or she stand in the lift? _____________ 8. Can small children walk up to their room on the twenty-four floor? __________ 9. Why do we have many high buildings? ____________________________________ 10. Can you give a title for the passage? ______________ 四、看图完成短文。 Could there be life on Mars? You probably know a lot about the city you live in. You may even know some interesting facts about our earth. But how much do you know about M _______,the planet where many think there may be l_______? For many years, people have studied Mars. They have sent instruments (仪器) and r_______ to the red planet. Some of them succeeded, but most f_______. The first spacecraft (航天器),Mariner 4 from America, got a c _______look at Mars on November 28,1964.Mariner 4 showed Mars had a red surface with many big h _______.There were also signs that there had been w _______on Mars. Of course, scientists wouldn’t miss the opportunity(机会)to send spacecraft to the red planet when it is so close to us. NASA, National Aeronautics and Space Administration (美国国家宇航局),sent two robots to Mars in June and July. In January 2004,they will t_______ to Mars at some 12 000 miles per hour. The two robots will then begin a 3month s _______to look for evidence (证据) of water and life from Mars. One day, humans will travel to Mars to have a even closer look at the earths red n _______.Maybe it could be you! (责任编辑：admin) |