Unit 6 Finding the Way
知識拓展：un- 不＋ fortunate 幸運(yùn)的＋ -ly9. position 要點(diǎn)：n. (1) a place or location. 地點(diǎn)，位置或方位 can you find our position on this map? 你能在這幅地圖上找到我們的位置嗎？(2)a situation as it relates to the surrounding circumstances: 處境，立場；與周圍情況有關(guān)的處境： in a difficult position 處于困難境況(3)a post of employment; a job. 職位： 雇傭的職位；工作 he’s got a good position. 他謀得一份好工作。vt. 安放， 安置； you must position yourself where you can see the blackboard.你必須坐在能看見黑板的地方。10. clear 要點(diǎn)：adj. transparent清晰的，清澈的a clear moon 一輪皓月 a clear day 晴天easily seen or heard or understood, distinct 清楚的；易懂的a clear photograph 一張清晰的照片adv. (1)清楚地 i want to be quite clear on this problem. 在這個問題上我希望搞清楚。(2)不礙事地；干凈利落地she jumped clear. 她跳得干凈利落。he got clear away. 他逃得無影無蹤。vt, vi. (1)使干凈；使清潔；使清澈 let’s clear all this crap off the kitchen. 讓我們把廚房里所有的垃圾清理掉。(2)（常與of連用）除去；拿走clear the plates away 把盤子拿走please clear the desk of all these books and papers.請把書桌上所有的書和報(bào)紙都收拾起來。11. earth 要點(diǎn)：n. 地球the earth goes round the sun once a year. 地球一年繞太陽一周。the earth revolves on its axis. 地球繞軸自轉(zhuǎn)。土地she put the seeds in the earth. 她把種子放入土壤里。12. work for 對……起作用 13. gps （global positioning system ） 全球衛(wèi)星定位系統(tǒng)14. phone (=telephone)[口] 要點(diǎn)：n. 電話， 電話機(jī) talk to sb. over the phone 在電話里和某人講話 make a phone call打個電話 hang up （answer） the phone掛斷（接）電話 you are wanted on the phone. 有人叫你聽電話。v. (給……)打電話 i phoned my parents. 我給父母打了電話。 （三）重點(diǎn)解析：1. by looking at their positions, people know what direction they are going.2. unfortunately, using a compass is not so easy.3. it is very useful for people who often travel.