The warming of the ocean has far-reaching effects.The hot,humid(潮濕的)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.

　　四級英語選詞填空精選練習選項：

　　[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

　　四級英語選詞填空精選練習答案：

　　1. P phenomenon

　　2. B strength

　　3. E tropical

　　4. L bringing

　　5. K starvation

　　6. J destructive

　　7. N worth

　　8. A estimate

　　9. O strike

　　10. I completely