Unit2 Sailing the Oceans Language points 课件（114张）

课件114张PPT。Unit 2 Sailing oceans1. I believe he is an honest man,_____ 2. We don’t think Tom has broken the regulations,_____ 3. Mary guessed his father must have bought her a beautiful shirt,_____ Isn’t he?has he?didn’t she1.navigator n. 导航者,领航员 navigate vi. 航行, 航海, 航空 vt. 航行于, 驾驶, 操纵, 使通过Language points in reading 1They navigated with difficulty through the crowd. 他们在人群中坚难行进。 navigation n. 航海，航行 navigational adj. 航海的，航行的2.explorer n. 勘探者,考察者(考察的人,尤指考察某一地理区域的人) explore v. 探险, 探测, 探究 exploration n. 探险, 探测 His mother is a arctic explorer. 他妈妈是一个到北极探险考察的人。 We must explore all the possibilities for the solution of the problem. 我们必须探讨解决这个问题的所有可能性。 Have you really explored your nearest town? 你真的考察了离你们那儿最近的城镇了吗？3.特殊疑问词+do you think…双重疑问句 除think以外believe，guess, suppose等词也可以用于此结构。 What do you suppose has happened to him? 在I think／believe／guess／suppose/ 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 don’t think he will come． I think he will not come．[正][误]4. work out ① to calculate an answer, amount, price, or value 计算 ② to think about sth. and manage to understand it 设法弄懂 ③ 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. ⑴ See if you can work out this bill out. ⑵ The plot is so complicated that it’ll take you a while to work it out.计算弄明白⑶ I can’t work out Geoff ; one day he’s friendly ,the next day he ignores me completely. ⑷ I haven’t worked out who’s gong to look after the kids tonight.明白计划5. latitude The angular distance north or south of the earth's 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 latitude 40 degrees north. 我们的位置是北纬40度。6. longitude The angular distance on the earth's 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。7. identify vt.把…等同于;认出,鉴定, 认为同一 I identified the jacket at once；it was my brother’s． He identifies beauty with goodness． identify oneself with 与……有联系,支持 He preferred not to identify himself with that group.identification 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 ship’s 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。 ① may/might well 很可能，极有可能 These are excellent photographs ... ...