课程咨询

GRE首页 GRE课程 GRE动态 0元讲座 GRE模考网站

新东方在线 > GRE > GRE阅读 > 正文
扫码关注掌握一手留学资讯

扫码关注掌握一手留学资讯

回复XDF免费领

水平测试和备考资料

扫码关注公众号

GRE阅读模拟练习题(224)

2017-05-18 09:35:00来源：网络

　　为了帮助大家练习GRE阅读题考点，新东方在线GRE频道为大家带来GRE阅读模拟练习题一文，希望对大家GRE备考有所帮助。更多精彩尽请关注新东方在线GRE频道!

　　Recent studies of the Philippine fruit bat fauna have confirmed some previous hypotheses regarding bats on oceanic islands: for example, species richness (the number of different species in a particular area) and abundance are generally highest in the lowlands and decrease with increasing elevation. With few exceptions, each endemic species (species native to a particular place) is restricted to the modern islands that made up a single island during periods of low sea level, and genetic differentiation has been influenced by the ecology of the species and the current and past geographic and geological conditions. However, far more previous hypotheses have been overturned than supported. Some endemic Philippine species use disturbed habitat as extensively as nonendemic species that are widespread in Southeast Asia. Levels of genetic variation within all species are high, not low, and rather than showing evidence of an intrinsic vulnerability to extinction from naturalcauses, independent lineages of these bats have persisted in rather small areas for very long periods of time (often millions of years) in spite of frequent typhoons and volcanic eruptions. While colonization from outside areas has clearly contributed to the high species richness, speciation within the archipelago has contributed at least a quarter of the total species richness, including many of the most abundant species.

　　1. The primary purpose of the passage is to

　　A：Draw on studies of the Philippine fruit bat in proposing a new theory regarding bats on oceanic islands

　　B：Show how recent research on the Philippine fruit bat reflects debates about bats on oceanic islands

　　C：Argue for the relevance of certain new evidence pertaining to the Philippine fruit bat fo the study of bats on oceanic islands

　　D：Discuss recent investigations of the Philippines fruit bat in light of conventional wisdom regarding bats on oceanic islands

　　E：Explain why the Philippine fruit bat is atypical among bats on oceanic islands in terms of genetic variation

　　答案：D

　　2. The primary function of the highlighted text is to

　　A：Identify a finding from the Philippine fruit bat studies that will have a significant impact on how oceanic bats generally are viewed

　　B：Point out a hypothesis that has been the subject of considerable disagreement among researchers studying oceanic bats

　　C：Present evidence that is difficult to reconcile with other recent findings regarding the Philippine fruit bat

　　D：Illustrate a widely held view about oceanic bats generally that was confirmed by the Philippine fruit bat studies

　　E：Identify a feature of the Philippine fruit bat that does not appear to apply to oceanic bats generally

　　答案：D

　　3. Which of the following can be inferred from the passage about the “recent studies”?

　　A：They point to the need for a significantly revised perspective on oceanic island bats generally.

　　B：They were undertaken with the assumption that Philippine fruit bats were somewhat atypical among oceanic bats.

　　C：They remain somewhat controversial among researchers because of the number of standard hypotheses that they tested.

　　D：They have largely confirmed what scientists thought about the Philippine fruit bat.

　　E：They suggest that bats on oceanic islands are more vulnerable to extinction than previously thought.

　　答案：A

更多GRE备考资料下载请点击这里

　　以上就是新东方在线GER频道为你带来的GRE阅读模拟练习题，更多精彩敬请关注新东方在线GRE频道。


本文关键字: GRE阅读 gre阅读练习题

添加新东方美研助教回复【GRE】获取

模考真题|写作题库|阅读机经|佛脚词汇

更多资料

添加美研助教号，
回复【GRE】获取备考必看资料包

  • 1.打开手机微信【扫一扫】，识别上方二维码；
  • 2.点击【添加美研助教号】，回复对应关键字领取学习资料。
更多>>
更多内容

关注新东方美研助教

回复【GRE】获取备考必看资料包

新东方美研备考资料
GRE录播课（全科班/单项班） GMAT6-8人直播VIP小班 托福直播精讲班（30天/60天）
更多>>
更多惊喜>>

添加美研助教号，
回复【GRE】获取备考必看资料包

  • 1.打开手机微信【扫一扫】，识别上方二维码；
  • 2.点击【添加美研助教号】，回复对应关键字领取学习资料。
更多>>
更多资料
我要
反馈 返回
首页
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10