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Lesson 42 Modern cavemen 现代洞穴人

Comprehension理解

Give short answers to these questions in your own words as far as possible. Use one complete sentence for each answer.www.xiao84.com

1  why does the exploration of a deep cave require careful planning?

2  How has the Gouffre Berger been formed?

3  Why might the entrance to the Gouffre Berger never have been discovered?

Vocabulary词汇

Explain the meanings of the following words and phrases as they are used in the passage: relatively(1. 2);desire for solitude(1. 2); lures(1. 3); arouse(1. 6); precise(1. 9); confront(1. 11); is barely noticeable(1. 15).

Summary writing摘要写作

Give an account in not more than 80 words of the pot-holers' experiences after they entered the Gouffre Berger. Use your own words as far as possible. Do not include anything that is not in the last paragraph.

Composition作文

Write a Composition in about 300 words on one of the following:

a Describe a man's efforts to escape from a cave by the seashore in order to avoid the incoming tide. b The most popular sport in your country.

Letter writing书信写作

You had a party at your home recently but unintentionally neglected to invite a close friend of yours. Write him a letter of about 100 words apologizing for this and explaining how the mistake came about.

Key structures and Special difficulties关键句型和难点

Rewrite the following sentence without changing the meaning. Then refer to 11. 25-26.

The insistent booming sound they could hear was found to be caused by a small waterspout shooting down into a pool from the roof of the cave.

They could hear… which they…

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

Structure结构

4  ---- or the chance that they ______ an unexpected 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 rope ladders 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