答案笔试部分一、1-5 BCABA, 6-10 CBADC， 11-15 BDCAB二、1-5 ADBDD, 6-10 BAACD, 三、BCDAC四、1. it give people warnings about bad weather.2.Because of the warning of the radio and the quick work of the principle.3.We felt happy about its work.4.它们不但给人们关于坏天气的警报，还发出关于其他危险事情的警报。5.A special radio/ the warning radios五、1.meters, 2.largest, 3. protect, 4.ancient, 5.wide, 6.thick, 7.includes, 8. wall, 9.achievements, 10.tourists六、1.how high, 2. how fast, 3. was watching, 4. instead of, 5. less interesting than, 七、1.take in, 2.walked into, 3. or so, 4. protect from,/against, 5.risked his life
