练习：
1. Why was it “too late” by the time they left the hut in the morning?
A) It would be uncomfortable climbing in hot weather.
B) The livid colour of the sky would hurt their eyes.
C) Rocks loosened by melting ice could be dangerous.
D) They wouldn't be able to walk on the melting ice.
2. The first reason given to explain why mountaineers hate talus is_______.
A) that climbers above you might cause it to fall on you
B) that it allows people climbing above you to push off
C) that it makes people climbing above you feel insecure
D) that it can cause other people to push you off the mountain
3. What is likely to be the meaning of "Cailloux"?
A) Rocks are flying through the air.
B) Rocks are falling.
C) There are loose rocks on the ground ahead.
D) There are rocks everywhere.
4. What is sarcastic in the words of the boy in paragraph four?
A) He didn't keep his ''face in".
B) Not every climber wears a helmet.
C) It is very difficult not to look up during a rockfall.
D) Being hit by a rock isn't "pleasant" at all.
5. In what sense was Toby "safe"?
A) The overhanging rock would protect him from falling rocks.
B) He felt a hand on his shoulder.
C) His rucksack was protected.
D) He had hidden under a canopy.