阅读理解加强版·英语四级全真预测试题及详解

章节摘录

　　“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（血吸虫病）.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.

书籍目录

全真预测试题1全真预测试题2全真预测试题3全真预测试题4全真预测试题5全真预测试题6全真预测试题7全真预测试题8全真预测试题9全真预测试题10全真预测试题1答案与详解全真预测试题2答案与详解全真预测试题3答案与详解全真预测试题4答案与详解全真预测试题5答案与详解全真预测试题6答案与详解全真预测试题7答案与详解全真预测试题8答案与详解全真预测试题9答案与详解全真预测试题10答案与详解全真预测试题听力原文2008年6月大学英语四级考试真题及答案解析2008年12月大学英语四级考试真题及答案解析2009年6月大学英语四级考试真题及答案解析2009年12月大学英语四级考试真题及答案解析2010年6月大学英语四级考试真题答案及答案解析2010年12月大学英语四级考试真题答案及答案解析

编辑推荐

　　技巧提高版·英语四级710分全真预测卷（附送MP3光盘）　　详解版·英语四级真题+预测试题（附送MP3光盘）　　详解版·英语四级历年真题（活页MP3版）　　大学英语4级历年真题剖析（2010 12—2006 06）（活页MP3版：阅读理解加强版·英语六级全真预测试题及详解　　（附送MP3光盘及2008—2010年真题）　　技巧提高版·英语六级710分全真预测卷（附送MP3光盘）　　详解版·英语六级真题+预测试题（附送MP3光盘）　　详解版·英语六级历年真题（活页MP3版）　　大学英语6级历年真题剖析（201 01 2—20061 2）（活页MP3版）　　挑战四级重在阅读　　全文翻译重点解析　　你一定可以做到

作者简介

《阅读理解加强版·英语四级全真预测试题及详解(2010年12月完整版-2008年6月)》内容简介：大学英语四级考试改革的目标是更准确地测试我国在校大学生的英语综合应用能力，尤其是英语听说能力，以体现社会改革开放对我国大学生英语综合应用能力的要求。

许多考生由于对大学英语四级考试改革的理解不够透彻，在备考过程中往往具有一定的盲目性，缺乏针对性的训练。为了帮助广大考生更好地应对改革后的各种新题型，破解四级考试过程中的种种难题，笔者组织了长期奋战在大学英语教学和四级培训一线的教师，合力编写了该书。

---

 阅读理解加强版·英语四级全真预测试题及详解下载

---