Most volcanoes are quiet They rest peacefully for hundreds of years. No one

游客2023-08-22  24

问题     Most volcanoes are quiet They rest peacefully for hundreds of years. No one pays much attention to them Mount St Helens was one of these volcanoes. Until 1980, it was a beautiful【B1】______area Its last eruption had been 123 years ago. No one【B2】______another one. In March 1980, Mount St. Helens began to make noises. At first, there were some shaking movements. Then,small eruptions occurred. Some【B3】______left immediately. Others felt there was no danger. But on the morning of May 18, 1980, the mountain blew its top. With the power of twenty-five【B4】______bombs, Mount St. Helens exploded. Clouds of dust and ash rose more than twelve miles into the sky. Rocks and mud crashed down on the slopes.【B5】______,many people were still living, camping or working in the area Over forty people lost their lives. Others were【B6】______.Robert Baker was fishing with his family when the explosion happened. He reported that the morning of May 18 was strange. No birds were singing. The air was still.Then,hesaw a large black cloud【B7】______towards them.In minutes,day【B8】______night. He called his family to their【B9】______and they started on the slow dark ride away from the mountain. All the time, hot ash was raining on them. But other people were not so lucky.David Johnston,a volcano expert,was standing near the【B10】______of the mountain. At 8:31 a.m., he radioed"This is it! " He was never heard again. Mount St. Helens is peaceful now. But its slopes are empty. It will be many years before fish, plants and trees will again live on the mountain. [br] 【B3】

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答案 residents

解析 分析句子结构,句子缺少主语,空格处应为名词成份。resident意为“居民”,注意该词为可数名词且空格前有some,故要用复数形式。
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