章节标人教实验版高三Module9Unit2.ppt
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1、,课标人教实验版高三 Module 9 Unit 2,Reading,广东 曾桂萍 刘玉,Discuss,1. How do you think seamen found their way before modern accurate methods of navigation were invented?,Kept close to the shore, used nature such as the sun, wind, birds, tide, etc, to help them, and used some of the instruments including a compass
2、, astrolabe, etc.,2. Which do you think was easier to work out: latitude or longitude?,Latitude, because it was used to measure how far you had traveled from land on a straight line. It was discovered a long time before longitude.,3. Can you identify these early navigational instruments seamen used
3、and explain how they are used?,1) compass ( in ancient China) 2) astrolabe 3) sextant 4) sea / nautical / marine chart,4. Which ones do you think are still used today?,Sea charts are still used today.,Comprehending,1. Read the passage and answer the following questions. What is the use of a bearing
4、circle, astrolabe, quadrant or sextant? ( ) What is the use of a compass? ( ) A. To set the course of the ship B. To measure the position of the ship C. To measure the speed of the ship D. To tell the time,A,B,2) Why are speed and time important in working out the longitude of a ship? Speed and time
5、 are important in finding out the longitude of a ship because the earth moves fifteen degrees westwards every hour. If you know your direction, speed and time, you can work out the approximate longitude or change in your position in relation to the stars.,3) Why is the position of the sun and variou
6、s stars useful for working out latitude? The position of the sun and stars are useful for working out latitude because they are fixed points in the sky and their movements in relation to the earth are already known. So they can be used to measure a ships position.,2. Suppose you were a sea captain a
7、iming to sail round Africa. Discuss in groups: 1) What skills would you seek in your sailors? 2) What problems would you anticipate for this journey?,3. Read the passage again and use the information to analyse the navigational skills.,1. To find the ships position at sea a sailor used the North Sta
8、r and the sun. 2. A sailor knew that land was nearby if he saw _ _. 3. Sailors used _ _to increase their speed.,fresh seaweed, nesting birds returning home in the evening or fog,sea currents or tides and winds,4. There were two methods to find longitude: 1)_ 2)_,Using instruments,measuring time and
9、speed,compass and complicated mathematical tables,1. How do you think seamen found their way before modern accurate methods of navigation were invented? 在现代精确的导航法尚未发明之前, 你认为航海员是怎样探路的?,Explanation on P11,这是一个“特殊疑问词+do you think” 的双重疑问句结构。除think以外believe,guess, suppose等词也可以用于此结构。 What do you suppose h
10、as happened to him? 在I thinkbelieveguesssuppose/ imagine等词的句式中,如果从句有否定,否定词应该前移,即否定转移。 I dont think he will come I think he will not come,正,误, invent vt发明,创作;虚构,杜撰 Alexander Graham Bell invented the telephone in 1876. 1876年阿历山大格雷厄姆贝尔发明了电话。 The whole story was invented. 整个故事是虚构的。 inventor n发明者,发明家,创造者
11、 invention n发明,创造;发明物,discover: invent: Gilbert _electricity, but Edison _the electric light bulb. Who _America? Who _the computer?,客观存在,被人发现,客观没有,被人发明,discovered,invented,discovered,invented,吉尔伯特发现了电,爱迪生发明了电灯。,谁发现了美洲?,谁发明了电脑?,2. work out to calculate an answer, amount, price, or value 计算 to think a
12、bout sth. and manage to understand it 设法弄懂 to think carefully about how you are going to do sth. and plan a good way of doing it 精心制定出,安排,eg. See if you can work out this bill out. The plot is so complicated that itll take you a while to work it out.,计算,弄明白, I cant work out Geoff ; one day hes frien
13、dly ,the next day he ignores me completely. I havent worked out whos gong to look after the kids tonight.,明白,计划,3. latitude The angular distance north or south of the earths equator, measured in degrees along a meridian, as on a map or globe. 纬度:地球赤道北或南的角距离,例如在地图或地球仪上沿着子午线用度数测量 e.g. Our position is
14、latitude 40 degrees north. 我们的位置是北纬40度。,4. longitude The angular distance on the earths surface, measured east or west from the prime meridian at Greenwich, England, to the meridian passing through a position, expressed in degrees (or hours), minutes, and seconds.,经线:地球表面的成角距离,从英国格林威治的本初子午线向东或向西至经过某
15、一点的子午线计量,以度(或小时)、分和秒表示。 e.g. Our position is longitude 116 degrees east. 我们的位置是东经116度。,5. identify vt.把等同于;认出,鉴定, 认为同一 I identified the jacket at once;it was my brothers He identifies beauty with goodness identify oneself with 与有联系,支持 He preferred not to identify himself with that group.,identificat
16、ion n. 辨认, 鉴定, 证明, 视为同一 identity n. 同一性, 身份, 一致, 特性, 恒等式 identity card 身份证,1. We may well wonder how seamen explored the oceans before latitude and longitude made it possible to plot a ships position on a map.,在经纬度未能绘出航船在地图上的位置之前,我们很想知道航海员是怎样在海上探险的。,Reading,Page 1, may/might well 很可能,极有可能 These are
17、excellent photographs and we may well use them in our magazine. 这些是很不错的照片,我们很有可能把它们用在我们的杂志上。 You might well find that youll need more by the weekend. 到周末你很可能会发现你需要更多东西。, 主语+thinkfeelmakeconsider+it +n.adj.+ forof sb. to do 其中it为形式宾语,forof引出动词不定式的逻辑主语。 I think it important for him to learn English we
18、ll 我认为学好英语对他很重要。 I have made it clear that I object to the plan. 我已经表明我反对这个计划。,2. The voyages of travelers before the 17th century show that they were not at the mercy of the sea even though they did not have modern navigational aids. 17世纪前的海上航行表明,即使没有现代航海术的帮助,旅行者也没有受大海的支配。, voyage n./ vi. 航海, 航行 Th
19、e voyage from England to India used to take six months. 过去从英国航行到印度要六个月。 go on/make/take a sea voyage 去航海旅行 voyager n. 航行者, 航海者,trip 指休闲或因商的短途旅行 journey 指从一地出发直达目的地的长途陆路旅行或旅程,不含回到原出发点之意。 travel 常指到国外或某个遥远的地方去,不强调具体目的地。指具体的旅行时常用复数,用单数一般表示旅行的抽象概念。,trip, journey, travel, voyage, tour,voyage 强调较远距离的水上或空中
20、旅行或游历。 tour 指周游或巡回旅行,常常是访问一系列地方后再回到原出发点。,e.g. We will have a comfortable voyage to the Far East through air. 我们乘飞机去远东旅游将会非常舒适。,The journey to the seaside will take not more than two days. 到海边去旅行最多需要花费两天时间。 I at once began making preparations for a trip home. 我马上开始为回家做准备。,Our American friends are mak
21、ing a tour of Shanghai. 我们的美国朋友正在对上海进行巡回旅行。 He came back home after years of foreign travel. 在多年的国外旅行后他回到了家。, at the mercy of without any protection against; helpless before 任由摆布;在面前无助 They were lost at sea, at the mercy of wind and weather. 他们在海上迷失了方向,任凭风和天气的摆布。 I dont like to be at the mercy of su
22、ch a man. 我不愿受这样一个人的摆布。,have mercy on/ show mercy to 对表示怜悯 The terrorists showed no mercy to the hostages. 恐怖分子对人质残酷无情。 without mercy 毫不留情地 The mother left the dying baby in the hospital without mercy. 那位母亲狠心地把垂死的婴儿丢弃在医院。,Its a mercy (that) (口)幸运的是,幸亏 (用于表示更遭的情况得以避免总算是幸运) Its a mercy the accident ha
23、ppened so near the hospital. 幸亏事故发生在离医院很近的地方。 Its a mercy she wasnt seriously hurt. 幸运的是她伤势不重。, even though = even if 虽然,即使 引导让步状语从句 A.引导把握不大或假设的事情 Even if we achieve great success in our work, we should not be proud. 即使我们在工作上取得了巨大的胜利,也不能骄傲。,He will have problems in finding a job even if he can pass
24、 the exam. 即便他能通过考试,以后找工作也成 问题。 They wouldnt lose heart even if they failed ten times. 即使他们失败十次也不灰心丧气。,B.引出事实 Even though he was late, he was not criticized by the teacher. 他虽然迟到了,也没有挨老师的批评。 I can still remember, even though it was so long ago. 虽然这是很久以前的事,我还记得。,3. alongside prep. = by the side of; s
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