閱讀理解加強版·英語四級全真預測試題及詳解

內(nèi)容概要

　　大學英語四級考試改革的目標是更準確地測試我國在校大學生的英語綜合應(yīng)用能力，尤其是英語聽說能力，以體現(xiàn)社會改革開放對我國大學生英語綜合應(yīng)用能力的要求。　　許多考生由于對大學英語四級考試改革的理解不夠透徹，在備考過程中往往具有一定的盲目性，缺乏針對性的訓練。為了幫助廣大考生更好地應(yīng)對改革后的各種新題型，破解四級考試過程中的種種難題，筆者組織了長期奮戰(zhàn)在大學英語教學和四級培訓一線的教師，合力編寫了該書。

書籍目錄

全真預測試題1全真預測試題2全真預測試題3全真預測試題4全真預測試題5全真預測試題6全真預測試題7全真預測試題8全真預測試題9全真預測試題10全真預測試題1答案與詳解全真預測試題2答案與詳解全真預測試題3答案與詳解全真預測試題4答案與詳解全真預測試題5答案與詳解全真預測試題6答案與詳解全真預測試題7答案與詳解全真預測試題8答案與詳解全真預測試題9答案與詳解全真預測試題10答案與詳解全真預測試題聽力原文2008年6月大學英語四級考試真題及答案解析2008年12月大學英語四級考試真題及答案解析2009年6月大學英語四級考試真題及答案解析2009年12月大學英語四級考試真題及答案解析2010年6月大學英語四級考試真題答案及答案解析2010年12月大學英語四級考試真題答案及答案解析

章節(jié)摘錄

　　“For one thing，as water backed up behind the dam，almost 100，000 Egyptians had tochoose between giving up their family homes and being submerged along with ancient andpriceless temples that were part of Egypt’s cultural heritage.But there have been far moredevastating results.Now that the Nile River floodplain is deprived of its annual enrichment withsilt，artificial fertilizer has to be trucked in at a cost of 1 00 million dollars a year——a costcarried by the subsistence farmers who make，on the average，less than a hundred dollars a yeareach.Furthermore，now there is nothing to wash away the previous year’s silt buildup in thesoil.And with silt deposits no longer compensating for erosion，the fertile river delta isshrinking-and an alarming part of what remains has completely dried up.Restoring the deltawith pumps。drains。and wells may cost more than the dam itself.”　“I ronically，evaporation as well as bottom seepage from the new lake filling in behind thedam is so great that the lake basin may never fill up to predicted levels.So nobody can livearound the lake because nobOdv knows for sure where the shoreline will be.More seriously，there is less water to go around than there was before.And even though some 700，000 new acres（about 1.6 million hectares）have been opened up for agriculture，the population outgrew thepotential food increase even before the dam was finished.At the same time，with the nutrient-rich flow of the Nile turned off.another major food source——the sardines，shrimp，andmackerel that flourished in the enriched waters off the delta-has declined catastrOphically.Worse yet.the lake and the irrigation networks have so accelerated the spread of blood flukesthat half the Egyptian populace are now carriers of schistosomiasis（血吸蟲?。?In irrigatedareas，where eight out of ten humans live，women can expect to live only to age twenty-seven，men to age twenty-five.”　　The Hawaiian Goose　　Another clear example of human ignorance of natures delicate balance is seen in the nearextinction of the Hawaiian Goose or Nene.It was estimated in the late eighteenth century thatthe population of Hawaii’s unique variety of goose stood at about 25，000.In a matter of fifty years the population had dropped to approximately thirty birds.There were undoubtedly multiple causes for the decline in the Nene population，and virtually all of them resulted，either directly or indirectly，from humans.　　The most disastrous activities of humans included hunting with firearms，ranchingactivities.and the building of beach resorts.There is little doubt that the Nene’s near extinction was hastened after shotguns were brought to Hawaii.It seems reasonable to assume that many more Nenes were killed when guns became common.In a similar fashion，as people movedfurther inland on the islands they began to open more and more land for the development of ranches and beach resorts.These developments forced the geese out of their natural nesting and breeding ranges.As these ranches and resorts became more plentiful，the Nene population accordingly decreased.

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