1、Unit 2 Sailing the oceansPart 2 Teaching Resources第二部分 教学资源Section 2 Notes to difficult sentences from Unit 2Sailing the oceans1.So accomplished navigators were able to use it to plot their positions熟练的领航员就能够用它来确定自己的位置。句中accomplished是形容词，意思是“优秀的，熟练的”，作定语修饰其后的名词。Accomplished 的用法如下：已完成的; 已达到的： accompl
2、ished facts 既成事实； 学识渊博的, 技术高超的, 有成就的： an accomplished cook 厨艺精湛的厨师，Judy is accomplished in English teaching. 茱蒂擅长英语教学； 有教养的, 优雅的： an accomplished lady 才女2.On a clear day especially during the summer the sailors could use the sun overhead at midday to navigate by在晴朗的日子，尤其是在夏天，水手可以使用正午头顶的太阳来引导他们航行。句中t
3、o navigate by作目的状语，修饰谓语动词，其中的by是介词，它的逻辑宾语是前面的the sun。 类似的例句有： I have no topics to write about.He found some pens to write with. He is not the person to get along with.3.Sea birds could be used to show the way to land when it was nowhere to be seen看不到陆地的时候，可以利用海鸟来定位通向陆地的方向。句中used后面有一个停顿。to到land作目的状语。
4、句中when引导的是时间状语从句，修饰说明主句谓语动词。4. The number of knots that were counted during a fixed period of time gave the speed of the ship in nautical miles per hour一定时段得出的绳节数显示航船的海哩时速。句中that were counted during a fixed period of time是定语从句，in nautical miles 和per hour 都是状语。5. Later, when seamen began to use the c
5、ompass in the 12th century they could calculate longitude using complicated mathematical tables后来到了十二世纪海员开始使用指南针的时候，他们就能够借助复杂的数学表格计算出航行的经度了。using complicated mathematical tables 是现在分词短语作状语，表示手段。更多例句：The boy sat in front of the farmhouse cutting the branch. 那男孩坐在农舍前，削树枝。（伴随）He came running back to te
6、ll me the news. 他跑回来告诉我这个消息。（方式）An old man entered, supported by a girl. 一位老人在一个女孩的搀扶下走进来。（方式）6. Then he could tell if he was sailing on his correct rather than a random course. 这样他就能弄清楚他是沿正确航线而不是紊乱航线航行。rather than 的例句还有：I think Ill have a cold drink rather than coffee. Why didnt you ask for help, r
7、ather than trying to do it on your own?7.The earliest，the astrolabe，was a special all-in-one tool for telling the position of the ship in relation to the sun and various stars which covered the whole sky最早的，那些古代的星盘，是一种单一形式的工具，用来确定船舶与太阳和太空星辰的相对位置。in relation to 是复合介词短语，作状语。 请看：in relation to (= conce
8、rning) this matter。 Its brain is small in relation to (= compared with) its body. Little of what he said has any relation to fact.8.It proved to be the most accurate and reliable of these early navigational instruments它证明是这些早期航海仪器中最准确最可靠的一种。句中proved可以看作半系动词，后接表语。look，turn，feel，get，become，sound，smell
9、，stand，go，remain等都可能用作半连系动词。例如：He looked a perfect fool他看上去是个十足的傻瓜。He turned traitor to his country他背叛了祖国。I felt very hungry after a long walk走了一段长路，我感到很饿。Our motherland is getting stronger and stronger我们国家变得越来越强大了。Some of the land became covered with water一些田地覆盖着水。The story sounds interesting这故事听起很有趣。heflowers smell sweet花朵散发芳香。Holding the note in his hand，he stood there dumbfounded他拿着钞票，站在那里，目瞪口呆。They went mad他们发狂了。He never remained satisfied with his success他从不满足于自己的成绩。