练习材料:
Lesson35-2 Space odyssey
Because the gravity on the Moon's surface is only a sixth of Earth's (remember how easily the Apollo astronauts bounded along), it takes much less energy to accelerate to that 1.5 miles per second than it does on Earth. Moon-dwellers will be able to fly in space at only three per cent of the cost of similar journeys by their terrestrial cousins.
Arthur C. Clark once suggested a revolutionary idea passes through three phases:
1 'It's impossible -- don't waste my time.'
2 'It's possible, but not worth doing.'
3 'I said it was a good idea all along.'
应用配置:L0+L4
知识笔记:accelerate/ækˈsɛləˌreɪt terrestrial/təˈrɛstriəl cousins/kʌzənz
练习感悟:用时24分。晨读。段落短,一条过。
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