UNIT 3, 3C Listening, The body’s limits, page 33
Exercise 1
Both show people doing physically challenging activities in extreme conditions. In photo A, the people are walking in a desert in extreme heat. They are lightly dressed and carrying rucksacks. If they aren’t careful, they could become dehydrated and even die. In photo B, there is a climber sitting outside a tent in the mountains. He’s wearing an oxygen mask to help him breathe at this high altitude.
Exercise 3
1 –40°C
2 5°C
3 15°C
4 50%
5 57%
6 4,500
7 1/5
8 1/10
Exercise 5
Randy Gardner
Exercise 6
1 F They died after 30–40 seconds.
2 T
3 F The pressure dropped to almost zero for 27 seconds.
4 T
5 F He slept for almost 15 hours
UNIT 3, 3B Grammar, 3D Grammar, Future continuous and future perfect, page 34
Exercise 1
In the last photo, the people have bigger eyes, larger noses and nostrils, larger brains and foreheads and darker skin.
Exercise 3
1 will have
2 will be
3 perfect
4 continuous
future perfect 5: How will the human body have changed in 100,000 years? As a result, our eyelids will have become thicker …; Our nostrils will have grown larger …; The size of our skull will have increased …; our brain will have got larger.
future continuous 2: Humans will be living in other pats of the solar system.; … we will be using a nano-chip inside our head …
Exercise 4
1 will have finished
2 will be working
3 won’t be living
4 will have told
5 will be shining
6 won’t be playing
Exercise 5
in 100,000 years; In the distant future
Exercise 6
2 I think / don’t think most people will be living to 200 100 years from now.
3 I think / don’t think new diseases will have appeared in 1,000 years’ time.
4 I think / don’t think a human will have run 100 m in five seconds by the end of the century.
5 I think / don’t think computers will be managing all major companies in the foreseeable future.
6 I think / don’t think the Earth will be fighting wars against other planets 10,000 years from now.