新概念英语四第17课练习题及答案

2016-10-07 13:57:00来源:网络

  为了方便同学们自学新概念,新东方在线为大家整理了新概念英语四第17课练习题及答案,希望以下内容能够为大家的新概念英语学习有所帮助~

  新概念英语第4册课后习题及答案大全>>立即查看

  新概念英语第4册课后习题答案:

  Unit 17 BBADA BBDCD CA

  新概念英语第4册课后习题:

  Multiple choice questions 多项选择题

  Choose the correct answers to the following questions.

  Comprehension 理解

  1 One of the reasons rabbits multiplied so rapidly in Australia is that they ______.

  a.were unwisely introduced by enterprising settlers

  b.breed rapidly

  c.overran the continent

  d.overcame their natural enemies in the Antipodes

  2 Scientists found ______ of spreading myxomatosis.

  a.one way

  b.two ways

  c.three ways

  d.a large number of ways

  3 The disease was spread right across the continent of Australia largely because ______.

  a.of the mosquito

  b.of the rabbit

  c.scientists let infected animals loose in burrows

  d.Australia encouraged diseased rabbits to migrate to other places

  4 Myxomatosis, that was a blessing in Australia, proved to be ______in Europe.

  a.domesticated

  b.a disease

  c.profitable

  d.a curse

  Structure 句型

  5 This rabbit had no natural enemies in theAntipodes ______.(1.2)

  a.and as a result it multiplied

  b.in order to multiply

  c.so that it might multiply

  d.because it multiplied

  6 It______ and caused devastation.(1.3)

  a.burrowing

  b.burrowed

  c.was burrowing

  d.has burrowed

  7 ______ were local epidemics created? By infecting animals.(1.6)

  a.Why

  b.How

  c.Where

  d.When

  8 It was ______ to create local epidemics of this disease.(11.6-7)

  a.potent

  b.able

  c.enabled

  d.possible

  Vocabulary 词汇

  9 It caused devastation by ______ the herbage.(11.3-4)

  a.burrowing into

  b.infecting

  c.consuming

  d.digging

  10 By infecting animals and ______them loose in burrows ...(1.6)

  a.allowing

  b.leaving

  c.introducing

  d.turning

  11 The rabbits were able to ______this disease to a certain extent.(1.10)

  a.react to

  b.prevent

  c.withstand

  d.oppose

  12 Australia ______the rabbit as a pest from Europe.(1.13)

  a.inherited

  b.obtained

  c.assumed

  d.claimed

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