新概念第三册自学导读 Lesson42（1）
新概念一直被视为英语学习的经典教材，为了让同学们能够更加全面完善的学习新概念英语第三册，新东方网英语频道将帮助同学们一起总结知识点，为同学们提供新概念英语第三册学习笔记。让我们认真学起来吧!Notes on the text课文注释
1 as it has come to be known, 正如已逐渐为人所了解的那样，此处作插入语。
2 it is the desire… or the chance… that…
这是强调句式，被强调的部分是句子的主语the desire… orthe chance…
3 rig up, 装配，搭起。
4 Grenoble, 格里诺布尔，是法国东南部伊泽尔河上的一座大城镇，尤以它的大学而著称。
5 The cave might never have been discovered had not the entrance been spotted by…如果不是……偶然发现这个洞口的话，这个洞也许永远不会为人所知。这是表示与过去事实不相符的虚拟语气结构，句中的非真实条件句 had not the entrance been spotted by…由于省略了if, 因此要用倒装句式。
6 edge one's way, 此处作“侧身徐徐向前移动”讲。
7 which they found was caused…of the cave.
which was caused…of the cave是定语从句，修饰 sound; they found此处作插入语。 shootingdown… of the cave是现在分词短语作定语，修饰 waterspout。
Multiple choice questions多项选择题
Choose the correct answers to the following questions.
Comprehension 理解
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
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