河南省太康县第一高级中学201-2018学年高二下学期第二次周测英语试题

英语周练试题(第二周) 第Ⅰ卷 第一部分 听力(共两节，满分30分) (略) 第二部分 阅读理解(共两节，满分40分) 第一节(共15小题，每小题2分，满分30分) 阅读下列短文，从每题所给的四个选项(A，B，C和D)中，选出最佳选项。 A Now satellites are helping to forecast the weather. They are in space, and they can “see” all parts of the world. The satellites take pictures of the atmosphere, because this is where the weather forms. They send these pictures to the weather stations. So meteorologists(气象学家) can see what the weather is like in any part of the world. From the pictures, the scientists can often forecast how the weather will change. Today, nearly five hundred weather stations in sixty countries receive satellite pictures. When they receive new pictures, the meteorologists compare them with earlier ones. They may find that the clouds have changed during the last few hours. This may mean that the weather on the ground may soon change, too. In their next weather forecast, the meteorologists can say this. The weather satellites are a great help to meteorologists. Before satellites were invented, scientists could forecast the weather for about 24 or 48 hours in advance. Now they can make good forecasts for three or five days. Soon, perhaps, they may be able to forecast the weather for a week or more ahead. 21. Satellites are now used in _____. A. the study of space B. receiving pictures C. comparing pictures D. weather forecasting 22. Weather satellites take pictures of the atmosphere because _____. A. clouds form there B. the weather disappears there C. they think the pictures are beautiful D. these pictures can help forecast the weather 23. Meteorologists forecast the weather _____. A. after they have compared new satellite pictures with earlier ones B. after they have taken pictures of clouds C. before they have seen any pictures D. when they have received satellite pictures 24. Men will soon be able to forecast the weather for _____. A. 24 hours B. 48 hours C.168 hours or even longer D. a month B Greek researchers are currently working on a smart system that will be able to monitor(监控)alertness levels in drivers, recognize symptoms(征兆) of sleepiness and give drivers a wake-up call. The system is being developed and is expected to be completed in 2008 and will go into production for use by car manufacturers within the next five years. The system will be able to measure levels of wakefulness and warn drivers when they are becoming dangerously sleepy, so as to ensure safer driving behavior in drivers who are tired or have drunk alcohol — conditions shown to be responsible for a large percentage of serious accidents. The system will then be able to use algorithms(运算法则)to calculate when these parameters(参数) do not meet the requirements for normal and safe driving and warn the driver to stop, either with an auditory message or a visual message appearing in the mirror or even a “vibrating buzzer(振动蜂鸣器)” fitted in the seat belt that will wake the d ... ...