翻译:________________________________________________________________________
仿写:志愿者们住得离北京大学很近。
________________________________________________________________________
答案 1.17世纪以前的航海记录显示,即使没有现代航海技术的帮助,旅行者们也不是任凭海洋摆布的。
His life hangs at the mercy of the king.
2.直到17世纪英国人解决了这个理论问题后,人们才有了测量经度的可靠方法。
Wang Lin didn't go home until he finished his homework.
3.他们利用太阳的高度计算出他们所处的纬度。
These figures work out differently each/every time I add them.
4.这似乎已是最早的、最有用的探险方式,所冒的风险也是最小的。
He seems to have known the rusult of the examination.
5.当靠近陆地时,海员们利用它来确定小溪或河流的位置。
The volunteers live close to Beijing University.
Ⅳ.语篇填词
1____navigators could____2____North Star, the sun and____3____to navigate____4____. Seaweed could also be____5____to know whether they were____6____to land. Seabirds could be used____7____show the way to land. If fog was seen seamen knew that they were near the land. Winds can____8____the speed, but it also be____9____. Seamen used certain tides and currents to____10____ships to their destination.
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