【正文】
t ahead. next morning I’d just about given myself up for lost when I was spotted by a ship. I earned my passage by working as an unpaid hand, which accounts for my appearance. we ask what you’re doing in this Country and what your plans are? would be wrong of me not to trust a gentleman such as yourself, sir, even if you do dress in a rather unusual way. ’s why we’ve given you the letter. did not know whether I could survive until morning. Unit 4 天文學(xué) 大氣層,氣氛 系統(tǒng),體系 猛烈的,強(qiáng)暴的 固體 爆炸 氧 表面 行星 有害的 發(fā)展 astronomy atmosphere system violent solid explode oxygen surface pla harmful development 伸展,傳播 方法 存在 出席 ,到場(chǎng) 望遠(yuǎn)鏡 失望的 出版 ,發(fā)行 重力 力量 ,暴力 逐漸的 浮動(dòng) ,漂浮物 團(tuán) ,大量 ,體積 spread method exist presence telescope disappointed publish gravity force gradually float mass 及時(shí) 阻止 ,制止 依靠 .依賴 感到高興 ,感到振奮 既然 熟悉 ,掌握 ,了解 爆發(fā) 冷卻 在 … 表面 靠近 旅行 也 ,還 一般說(shuō)來(lái) in time prevent… from depend on cheer up now that get the hang of break out cool down on the surface get close to make a trip as well as in general /generally it was to bee was a mystery until the dust began to slowly bine into a ball moving around the sun. problem was that the earth became violent because it was not clear whether the solid shape was to last or not. knew that it was going to be different from other plas going round the Sun. 4. That made it possible for life to begin to develop. 5. What scientists think is that the earth was different because of the arrival of small plas growing in the water on its surface. 6. They developed new methods of growing food, hunting and moving around. are putting too much carbon dioxide into the atmosphere , whic