题目

某校有21名同学们参加某比赛，预赛成绩各不同，要取前11名参加决赛，小颖已经知道了自己的成绩，她想知道自己能否进入决赛，只需要再知道这21名同学成绩的（      ）   A.最高分              B.中位数              C.极差                 D.平均数 答案：答案：B 解析：21个数的中位数即为第11名的成绩，对比第11名即知自己是否被录取。任务型阅读阅读下面短文，根据短文中的信息完成文后表格(每空一词) (10分)How do you imagine the future? Will life in the future be better, worse or the same as now? What do you think of the future?People think that life will probably be very different in 2050. First of all, planes will be very small, so flying will be very cheap. Everyone will have a small car. Fuel(燃料) will be new and clean but expensive. We will see robots everywhere. And space planes will take us around the world in two hours. Houses will be warm in winter and cool in summer, so they will be very comfortable. We’ll use the sunshine to heat our houses. Computers will be very small, so they’ll be very light. People will do many things on the Internet.At that time, water will become one of our most serious problems. In many places, farmers will be in great need of water to grow fruit and vegetables.By 2050, we will be able to help blind people see again or deaf people hear again. At that time, our life will become better and better.What will the future be 1. in 2050?Planes and cars※ Planes will become very 2. . People will not spend much money in flying.※Everyone will have a small car. Fuel will be new and clean, but it’s not as 3. as today.※There will be space planes which can make us travel around the world within 4. hours.5.They will be comfortable to live in. People will not feel hot or 6.at home. The 7. is useful to keep the houses warm.ComputersThey will be very small and light.WaterIt will become a very serious 8. . There won’t be enough water.9. scienceDoctors can make the blind 10. again or the deaf hear again.