Scientists around the world have been studying the warming of waters in the Pacific Ocean known as El Nino （厄爾尼諾）. The appearance of El Nino is known to affect the weather around the world. Scientists still do not completely understand it. Yet they now find they can use it to tell about the future in different areas of the world.
One example is the work of two scientists at Columbia University in New York, Mark Cane and Gordon Eshel. A scientist of Zimbabwe（津巴布韋）, Roger Buckland worked with them. They have found that when El Nino appears, Zimbabwe has little or no rain. This means corn crops in Zimbabwe are poor. The last El Nino was in 1991 to 1993. That was when southeastern Africa suffered a serious lack of rain.
The scientists wrote about their recent work in the publication（出版物）Nature. Their computer program can tell when an El Nino will develop up to a year before it does. They suggest that this could provide an effective early warning system for southern Africa, and could prevent many people from starving.
小題1:El Nino is known as ___.
A．the changing of the weather in southern Africa
B．the warming of waters in the Pacific Ocean
C．the weather which brings drought（旱災(zāi)）to Africa
D．the weather phenomenon（現(xiàn)象）that brings heavy rains to Africa
小題2:Scientists study El Nino in order that ___.
A．they can provide a kind of early warning to the place that will suffer from drought
B．they can tell why Zimbabwe has little or no rain
C．they can do some research work in this field.
D．they can put all this information into their computers.
小題3:Which of the following is TRUE according to the passage?
A．Scientists come to understand how El Nino appears.
B．Three scientists from the USA work on this subject.
C．Southern Africa suffered a serious drought and many people died from hunger.
D．El Nino has something to do with Zimbabwe’s poor crops.
小題4:Which of the following is NOT true according to the article?
A．The computer is used in this research work.
B．Scientists know when an El Nino appears by means of the computer program.
C．The scientists published their results of the research work.
D．Nature is the name of the article written recently by the scientists.
小題5:What’s the best title for this passage?
A．Appearance of El Nino is Predictable（可預(yù)測的）
B．Drought in Zimbabwe
C．Early Warning System
D．Weather in Africa

小題1:B
小題2:A
小題3:D
小題4:D
小題5:A

試題分析：科學(xué)家一直在研究厄爾尼諾現(xiàn)象。太平洋的部分水域變暖導(dǎo)致氣候的變化。雖然不能完全理解，但是可以運用這方面的知識預(yù)測世界上不同地區(qū)的未來。把這一現(xiàn)象引起的災(zāi)難減少到最小。
小題1:細節(jié)理解題。根據(jù)文章第一句話可知，厄爾尼諾現(xiàn)象是太平洋的水域變暖。所以選B。
小題2:細節(jié)理解題。根據(jù)文章最后一句話可知，研究的目的是早想良策預(yù)防挨餓情況的發(fā)生。選A。
小題3:推理判斷題。根據(jù)They have found that when El Nino appears, Zimbabwe has little or no rain. This means corn crops in Zimbabwe are poor.可知，厄爾尼諾和津巴布韋的農(nóng)業(yè)欠收有關(guān)系。選D。
小題4:推理判斷題。文中沒提及文章的名字，所以D錯，選D。
小題5:主旨大意題。文章介紹了對厄爾尼諾現(xiàn)象的研究以及采取相應(yīng)的措施來應(yīng)對。所以選A 。
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B．Because Howe had already patented the lockstitch used by Singer.
C．Because Singer had borrowed money from Howe and never repaid it.
D．Because Singer and Howe had both invented the same machine.
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B．Because Radel wanted to create two groups of testers, hungry and non-hungry.
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D．Because Radel needed time to select participants in terms of body mass index.
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D．Thinking processes guarantee the normal functions of our senses.
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A．42 participants are too small a number for a serious investigation.
B．An experiment with hungry and non-hungry participants is not reliable.
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