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新概念英语第三册课多项选择题：Lesson 42 Modern cavemen

2018-06-06 16:40:37来源：网络

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　　查看更多>>新概念英语第三册课后练习多项选择题大汇总

　　1 In undertaking the descent of a really deep cave, a pot-holer ______ .

　　a.must be motivated by the desire to make an unexpected discovery

　　b.is prepared to spend a whole weekend away from his home

　　c.needs military co-operation in making preparations for the descent

　　d.may have to spend as much as a week planning his descent

　　2 The cave discovered by the French potholer, Berger ______ .

　　a.represents the ultimate challenge to any pot-holer who is truly dedicated

　　b.was recently explored for the first time since its discovery

　　c.has to be approached by following a stream which leads underground

　　d.consists of a large cavern, the size of a huge concert hall

　　3 On reaching the enormous cavern, the pot-holers ______ .

　　a.had to squeeze into a cleft in the rocks at the side

　　b.lit it up by using the arc lights they had carried down with them

　　c.saw a rainbow shedding its light on the limestone around them

　　d.could still hear the waterspout falling into the pool behind them

　　Structure结构

　　4 ---- or the chance that they ______ anunexpected discovery that…(11. 2-3)

　　a.would make

　　b.can make

　　c.may make

　　d.might have made

　　5 It can take as long as eight days getting ropeladders rigged up and ______ before …(11. 9-10)

　　a.to establish bases supplied

　　b.supplying bases established

　　c.establishing supply bases

　　d.bases established and supplied

　　6 After ______ the narrow gap, they climbed down the steep sides of the cave. (11. 18-19)

　　a.they were entering

　　b.entering

　　c.entered

　　d.they will enter

　　7 ---- let ______ the current to the other side . (11. 22-23)

　　a.them be carried with

　　b.their being carried by

　　c.themselves carry

　　d.themselves be carried by

　　8 No other sound could be heard ______ made by water…(11. 30-31)

　　a.except it was

　　b.than that

　　c.that was

　　d.but this was

　　Vocabulary词汇

　　9 It can take ______ eight days to rig up… (1. 9)

　　a.around

　　b.more than

　　c.up to

　　d.at least

　　10 ---- has tunnelled a course through a ______ in the rocks. (11. 13-14)

　　a.fault

　　b.gap

　　c.cleft

　　d.fissure

　　11 They had to ______ along this …(11. 19-20)

　　a.sidle nervously

　　b.file sideways

　　c.walk sharply

　　d.move cauriously

　　12 To protect themselves from the ______ water, they wore special rubber suits. (1. 23)

　　a.frozen

　　b.freezing

　　c.chilly

　　d.iced

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