2017届高三英语一轮复习 Unit 5 The power of nature练习 新人教版选修6.doc

Unit 5　The power of nature 练(一)　英语知识运用·组块专练——练准度 (限时：30分钟) .完形填空 Scientists have searched for many years for a__1__to tell whether a volcano__2__will be small or large. Now, four scientists say they have discovered something in__3__that will help do this.They__4__the research on Mount Unzen on the southern Japanese island of Kyushu. Mount Unzen exploded__5__November,1990.Since then, more explosions__6__43 people and destroyed the homes of more than 2,000 others. The volcano is still__7__today. The scientists say the lava of the volcano__8__high level of an element (成分), __9__is a sign of the presence of the lava from deep in the earth, not from the surface. They say it shows that the lava__10__directly from inside the earth is__11__with huge explosions instead of smaller ones. The scientists examined the lava from 18 explosions of Mount Unzen that took place during many__12__of years.They__13__studied the lava from other volcanoes in the area that are older than Mount Unzen. The lava studied came from__14__large and small explosions. The scientists found that large explosions contained__15__of the element than small__16__.The scientists say if they__17__this two years earlier，they__18__the people living in the area__19__Mount Unzen and saved many__20__. 1．A.glance　　　　　　　 B．method C．motor D．panic 解析：选B　从空后的“to tell whether a volcano ...”看出科学家在寻找预测火山喷发的方法。glance“一瞥”；method“方法”；motor“发动机”；panic“惊慌”。 2．A.eruption B．climate C．aspect D．district 解析：选A　从下文“will be small or large”看出要预言出火山喷发的规模大小。eruption“火山的爆发”；climate“气候”；aspect“方面”；district“区”。 3．A.lung B．ash C．lava D．crater 解析：选C　从第三段可看出科学家在研究火山熔岩中的成分。lung“肺部”；ash“灰烬”；lava“熔岩”；crater“火山口”。 4．A.stated B．teased C．compared D．did 解析：选D　state“陈述”；tease“取笑”；compare“比较”。由空后的the research可知此处考查短语do the research“调查研究”。 5．A.in B．on C．from D．off 解析：选A　在某个月份用介词in。 6．A.have quitted B．have uttered C．have focused D．have killed 解析：选D　由and可知，此处应与“destroyed the homes of more than 2,000 others”相对应，应说have killed 43 people。quit“停止”