语篇提能
Ⅰ.完形填空
Did you know that all the people of Hawaii live on volcanoes? Hawaii is a chain of__1__in the South Seas.__2__of these islands grew up from the__3__of the ocean.
Twentyfive million years__4__， Hawaii didn't exist.__5__， thousands of feet__6__the water's surface, the floor of the ocean cracked(破裂) open. A volcano that had__7__its way out from the__8__centre of the earth had__9__its way through the earth's crust(地壳). Molten(熔化的) rock called lava flowed from the crack. When the lave met the__10__water of the sea, it__11__. As the lava continued to flow, layer(层) upon layer of hardened rock was__12__the ocean floor. Slowly, the volcano built a mountain__13__to break through the surface of the__14__. An island was__15__. Many other volcanic islands grew up near it.
Over time, rain__16__the rock of the islands to form soil. Seeds__17__the wind took roots and grew until the islands became__18__with plants.
This took thousands of years. Today, Hawaii is__19__growing. Its active volcanoes have__20__added several hundred square kilometres to its area.
1．A.continents B．volcanoes
C．islands D．hills
2．A.Most B．All
