1.The UN weather agency warned on Tuesday there was a good chance of an"El Nino"climate phenomenon in the Pacific Ocean this year,bringing droughts(干旱) and heavy rainfall to the rest of the world The World Meteorological (氣象的) Organization (WMO) said its modeling suggested a"fairly large potential for an El Nino,most likely by the end of the second quarter of 2016".
The El Nino phenomenon occurs every two to seven years,when the trade winds that circulate surface water in the tropical (熟帶的) Pacific start to weaken.
WMO pointed out Tuesday that since last December,trade winds had weakened and there had been a significant warming of the waters below the surface in the central Pacific.
"While  there is no guarantee this situation will  lead to an El Nino event,the longer the trade winds remain  weakened,and subsurface temperatures stay significantly warmer than average,the higher chances are,"it said.
Two thirds of climate models predicted that the phenomenon would begin sometime between June and August,with one-fifth suggesting it could start as early as May,and the remaining predicting no El Nino this year,it said.
It is often followed by a return swing of La Nina,which is characterized by unusually cool ocean surface temperatures in the central and eastern tropical Pacific.
"El Nino has an important warming effect on global average temperatures,"Jarraud cautioned,stressing that combined with warming from greenhouse gases such events had"the potential to cause a sharp rise in global average temperature".
33.It can be inferred from the first two paragraphs thatB-'
A.a weather agency warned an"El Nino"would appear on Tuesday
B.WMO showed an El Nino would probably happen by June in 2016
C.an El Nino would bring heavy rainfall to the Pacific Ocean
D.The phenomenon of El Nino happens every seven years
34.What does the underlined phrase"this situation"in Paragraph 4refer to?A
A.Cool ocean surface temperatures in the central and eastern tropical Pacific.
B.A significant warming of the waters below the surface in the central Pacific.
C.Trade winds that circulate surface water in the Pacific.
D.Heavy rainfall in different areas all over the world.
35.According to the text,what might be the percentage of no"El Nino"this year?D
A.13%.  B.20%.    C.67%.    D.87%.

分析 本文屬于說明文閱讀,作者在這篇文章中向我們講述了什么是厄尼諾現(xiàn)象,以及人們關于今年是否會發(fā)生厄尼諾現(xiàn)象的預測.

解答 33.B  細節(jié)理解題,根據(jù)第一段The World Meteorological (氣象的) Organization (WMO) said its modeling suggested a"fairly large potential for an El Nino,most likely by the end of the second quarter of 2016".可知世界氣象組織顯示2016年六月可能會發(fā)生厄尼諾現(xiàn)象,故選B.
34.A  推理判斷題,根據(jù)第三段WMO pointed out Tuesday that since last December,trade winds had weakened and there had been a significant warming of the waters below the surface in the central Pacific.可知"this situation"指的應該是中部和東部熱帶太平洋的冷海表面溫度,故選A.
35.D  細節(jié)理解題,根據(jù)第五段Two thirds of climate models predicted that the phenomenon would begin sometime between June and August,with one-fifth suggesting it could start as early as May,and the remaining predicting no El Nino this year,it said.可知有五分之一的人認為厄尼諾現(xiàn)象會從五月開始,其余的人預測今年沒有厄尼諾現(xiàn)象,故選D.

點評 考查學生的細節(jié)理解和推理判斷能力.做細節(jié)理解題時一定要找到文章中的原句,和題干進行比較,再做出正確選擇.在做推理判斷題時不要以個人的主觀想象代替文章的事實,要根據(jù)文章事實進行合乎邏輯的推理判斷.

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