Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.

A. claimed     B. evacuate     C. fabrics     D. regular     E. significantly     F. sink G. rainstorms     H. similar     I. initially     J. swallowing     K. thought

“It was a wave of water,” says Oulimata Sambe. She points out the still-sodden(湿透的) armchairs, muddy wardrobe and the water stain a metre and a half up the wall in her small house in Ngor, a fishing village within Dakar, the capital of Senegal. “I had two grandkids on my bed, I had to 【小题1】 them out of the window,” she adds. Not faraway, underpasses on Dakar’s scenic corniche(滨海路) became car-【小题2】 lakes. Just weeks earlier another downpour had turned quiet streets in Dakar into raging rivers and collapsed a section of motorway.

【小题3】 events regularly occur across the region. Recent flooding and landslides also killed eight people in Freetown, the capital of Sierra Leone. In June flooding killed 12 people in Abidjan, the commercial capital of Ivory Coast. Floods in Lagos, Nigeria’s commercial capital, 【小题4】 another seven lives. Even when they are not deadly, city floods ruin lives and livelihoods. Storm water recently flooded the biggest textile(纺织业) market in Kano, a city in northern Nigeria, destroying hundreds of thousands of dollars’ worth of 【小题5】.

Unusually heavy rains have become 【小题6】 more common over the past 30 years, leaving huge numbers of people at risk. In places this is partly because of deforestation. A recent study by Christopher Taylor of the UK Centre for Ecology and Hydrology, a research institute, and his coauthors found that afternoon 【小题7】 in deforested parts of coastal west Africa happen twice as often compared with 30 years ago. Their frequency went up by only about a third in places that kept their forests.

Yet 【小题8】 flooding of cities in west Africa is not only caused by heavier rain. Unplanned urbanization is also to blame. As cities have grown, builders have thrown up concrete walls with little 【小题9】 about providing drainage, making it harder for water to find a clear path to the sea. As ever larger areas have been paved over, there has been less exposed soil into which water can gently 【小题10】 away. And as cites get more packed with new arrivals, their few functioning drains get overwhelmed or clogged.