英語四級選詞填空考前練習

　　選詞填空是英語四級考試中的常見失分題型，想要提高得分就要堅持每天的練習。下面小編為大家帶來，歡迎各位同學考前練習。

　　原文

　　EI NIno is name given to the masterious and often unpredictable change in the climate ofthe world.This strange ___1_____happens every five to eight years.It starts in the PAacificOcean and is thought to be caused by a failure in the trade winds***信風***，which affects the oceancurrents driven by these winds. As the trade winds lessen in ____2____,the oceancomperatures rise causing the Peru current flowing in form the east to warm up by as muchas 5`C.

　　The warming of the ocean has far-reaching effects.The hot,humid***潮溼的***air over the oceancauses severe ___3___thunderstorms.The rainfall is increased acrossAounth American____4____floods to Peru.In the West pacific,there are droughts affecting Australia andIndonesia.So while some parts of the world perpare for heavy rains and floods,other parts facedrought,poor crops and____5____.

　　EI Nino usually lasts for about 18 months The 1982-83 EI Nino brough themost___6____weather in mordern history .Its effect was worldwide and it left more than 2,000people 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 willbe.