2013年12月英语四级新题型选词填空习题(7)

英语自学网

EI NIno is name given to the masterious and often unpredictable change in the climate of the world.This strange ___1_____happens every five to eight years.It starts in the PAacific Ocean and is thought to be caused by a failure in the trade winds(信风)，which affects the ocean currents driven by these winds. As the trade winds lessen in ____2____,the ocean comperatures rise causing the Peru current flowing in form the east to warm up by as much as 5`C.
　　The warming of the ocean has far-reaching effects.The hot,humid(潮湿的)air over the ocean causes severe ___3___thunderstorms.The rainfall is increased acrossAounth American ____4____floods to Peru.In the West pacific,there are droughts affecting Australia and Indonesia.So while some parts of the world perpare for heavy rains and floods,other parts face drought,poor crops and____5____.
　　EI Nino usually lasts for about 18 months The 1982-83 EI Nino brough the most___6____weather in mordern history .Its effect was worldwide and it left more than 2,000 people dead and caused over eight billion pounds ____7___of damage.The 1990 EI Nino will ____9___,but they are still not __10___sure what leads to it or what affects how strong it will be.
　　A)estimate
　　B)strength
　　C)deliberately
　　D)notify
　　E)tropical
　　F)phenomenon
　　G)stable
　　H)attraction
　　I)completely
　　J)destructive
　　K)starvation
　　L)bringing
　　M)exhaustion
　　N)worth
        　　O)strike