选修七unit3知识点.doc

Four short words sum up what has lifted most successful individuals above the crowd: a little bit more.-author-date选修七unit3知识点选修七选修七Unit 3 Under the Sea一、语言要点I单元要点预览（旨在让同学整体了解本单元要点）词汇部分词语辨析1.shore/seaside/beach/coast/bank 2.flee/escape 3. deep/deeply词形变化1. depth n. 深, 深度,deeply adv.深深地deep adj.& adv. 深的;深入地,2. conserve v. 保存, 保藏conservation v. 保存, 保持3.vivid adj. 生动的, 鲜明的, 活泼的vividly adv. 生动地, 鲜明地4. awesome adj. 引起敬畏的, 可怕的awe n. 敬畏awe vt.敬畏5.tasty adj. 好吃的, 可口的taste v.品尝; n味道, 味觉tasteless adj. 没味道的, 无鉴赏力的重点单词1. annual adj. 每年的；按年度计算的/ n. 年刊；年鉴2. witness n. 目击者；证人；证据vt. 当场见到；目击3. accommodation n. 住所4. abandon vt. 放弃；遗弃；抛弃5. reflect vt. 映射；反射vi. & vt. 思考6. aware adj. 意识到的；知道的7. scare vt. 恐吓vi. 受惊吓重点词组sort out整理；挑出 help out 帮助（摆脱困难或危难）；协助；使脱离困境throw oneself out of 跃出 upside down上下翻转过来重点句型1. It was a time when the killer whales, or “killers” as they were then called, helped the whalers catch the baleen whales that were on their annual migration.2. I had already heard that George didnt like being kept waiting, so even though I didnt have the right clothes on, raced after him.3. Im sitting in the warm night air with a cold drink in my hand and reflecting on the day-a day of pure magic!重点语法被动语态（II）(见语法专题) II 词语辨析 (旨在提供完形填空所需材料) 1). shore/seaside/beach/coast/bank n.海边，海岸【解释】shore 指海岸，湖岸，也指近海的一带。seaside指近海边地区供游客休憩，娱乐的海边。beach指海洋或大湖在涨潮时被淹没而退潮时又露出的斜坡，可供人们玩乐，消遣的沙滩，海滩。coast以陆地为中心的海岸线bank河流的堤，岸【练习】选择shore/seaside/beach/coast或bank并用其适当的形式填空1) Last summer we spent all our holiday at the _.2) I enjoy lying on the _ with sunglasses in the sun.3) Its dangerous for children to play on the _ of the river.4) We often see many ships on the sea about several miles off the _.5) The land is barren on the east _.Keys: 1) seaside 2) beach 3) bank 4) shore 5) coast2). flee/escape v.逃避, 逃跑, 逃走【解释】flee 只说明动作，不强调结果。escape逃离，结果是成功的。【练习】选择flee或escape，并用其适当的形式填空1) The enemy _ in disorder. 2) Citizens were forced to _ the besieged city. 3) He narrowly _ death. Keys: 1) fled 2) flee 3) escaped3) deep/deeply adv.深深地；【解释】deep 表示深地，深处（常用于具体的方面）deeply常表达抽象含义。【练习】选择deep或deeply并用其适当的形式填空1) The police found out the lost child _ in the woods at last. 2) All of us were _ shocked at the bad news. Keys: 1) deep 2)deeplyIII 词性变化 （旨在提供语法填空所需材料）1. depth n. 深, 深度,deeply adv.深深地deep adj.& adv. 深的;深入地,2. conserve v. 保存, 保藏conservation v. 保存, 保持3.vivid adj. 生动的, 鲜明的, 活泼的vividly adv. 生动地, 鲜明地4. awesome adj. 引起敬畏的, 可怕的awe n. 敬畏awe vt.敬畏5.tasty adj. 好吃的, 可口的taste v.品尝; n味道, 味觉tasteless adj. 没味道的, 无鉴赏力的【练习】根据句子结构，用括号内所提供词的适当形式填空1) The lake is over 20 meters in _ so we were all moved _ by the man who dived _ into the lake to save the little boy. (deep)2) I _ remember the girl dressed in _ color he drew in the exhibition.(vivid)3) Anyone who launches a war is _ and is _ by people who love peace all around the world. (awe)4) The _ of energy will help us research the way to save and _ the energy. (conserve)5) Though the soup is _, Ive lost my sense of _ and it _just like _water.(taste)、keys:1) depth; deeply; deep 2) vividly; vivid 3) awesome; awed 4) conservation; conserve 5) tasty; taste; tastes; tastelessIV 重点词汇 （旨在提供综合运用所需材料）1. annual adj. 每年的；按年度计算的/ n. 年刊；年鉴重点用法annually adv. 年年地, 每年地典例 1) an annual income. 年收入2) an annual report年度报告2. witness n. 目击者；证人；证据vt. 当场见到；目击典例 1) He is the witness to the accident. 事故的目击者2) This old auditorium has witnessed many ceremonies. 这个古老的礼堂内举行过许多次典礼重点用法give witness on behalf of sb. 为某人作证3. accommodation住所 重点用法accommodate v. 向.提供, 容纳, 调和; 适应accommodation address临时通讯处accommodation allowance膳宿津贴典例 1) The high cost of accommodation makes life difficult for students in London由于住宿费用昂贵，伦敦的学生感到生活困难。2) The university offers excellent accommodation for summer visitors这所大学为夏季来访者提供了很好的住宿。4. abandon vt. 放弃；遗弃；抛弃n放任, 狂热重点用法abandon oneself to sth./doing sth. 沉溺于abandon to sb 把舍弃给with abandon放任地；放纵地；纵情地典例 1) They abandoned all hope of finding an effective way to solve the problem他们放弃了寻找有效方法解决问题的所有希望。2) We should keep off those who abandon themselves to drugs我们要远离那些吸毒成瘾的人。3) Don't waste the food left, and abandon it to the dog不要浪费剩下的食物，把它舍弃给狗吃。5. reflect vt. 映射；反射vi. & vt. 思考重点用法reflection n 反射；反映；思考；沉思reflective adj反射的；反映的；沉思的reflect on v. 思考，反省典例 1) Her severe look reflected how she really felt她那冷峻的神情反映出她心中的真正感受。2) Mirrors reflect light镜子能反射光线。3) I reflected on possible reasons for my failure我仔细考虑导致我失败的种种原因。练习用reflect的相关介词或正确形式填空.1)The moon appears a _ surface of the lake2)After a minute's _，he answered 3)The plan _ which he reflected was ridiculous4)The problems _ at discussion are to be dealt at tomorrows meeting.Keys: 1) reflective 2)reflection 3)on 4) reflected6. aware adj. 意识到的；知道的重点用法unaware不察觉的, 不知道的awareness n. 知道, 晓得bebecome aware of sth意识到某事be aware that-clause知道；意识到make sbaware that-clause提醒某人注意make sbaware of让某人注意到典例 1) He wasn't aware of the danger他没有意识到危险。2) Is she aware that I'm coming? 她知道我要来吗?注意：aware后跟名词性从句时，一般在从句前不能用of，但在what从句前必须用of。练习 用恰当的介词或aware恰当的词性填空。1) Also when you write your goals in a particular way you are able to make yourself continuously aware _ situations that will bring you nearer to your goal2)The principal didnt seem to be aware_ there should have been so much dispute about the decision3) Health officials throughout the world have tried to make people raise_ about AIDS. 4) Mike seems_ of the trouble hes causing, otherwise he would stop itKeys: 1) of 2) that 3)awareness 4)unaware7. scare vt. 恐吓vi. 受惊吓重点用法scaring adj令人害怕的；吓人的scared adj 受惊吓的；感到害怕的be scared of(=be afraid of) 遇到(某种事物或行为)而害怕be scared to do··(=be afraid to do)不敢做be scared to death吓死了典例 1) You scared me by coming in so quietly 你这么悄悄地进来吓了我一跳。2) Most girls are scared to light the firework.大多女孩不敢放烟花。 V 重点词组 （旨在提供综合运用所需材料）1. sort out整理；挑出; 解决(问题困难)短语归纳 sort through 查看并挑选出put away 把存放好典例1) I've sorted out the papers that can be thrown away我已经把那些可以扔掉的报纸整理出来了。2) We've got a few lime problems to sort out我们有几个小问题要解决。3) He was sorting through a pile of papers on his desk他在整理桌上的一堆文件。2. help out 帮助（摆脱困难或危难）；协助；使脱离困境短语归纳 help sb with sth帮助某人做某事with the help of在.的帮助下, 借助help oneself to请随便自己动手(夹菜吃、用等)can't help doing sth禁不住can't help but do sth只得；不得不典例 1) Can you help me out with the maths problem? 你能帮我解出这道数学题吗?2) Please help yourself to some fish随便吃点鱼。3) She can't help laughing她忍不住大笑起来。4) I can't help but wait我只得等。3.throw oneself out of 跃出典例1) The man suddenly threw himself out of the water and said“I'm here'。那个人突然跃出水面说“我在这儿”。短语归纳 throw oneself at冲向throw oneself into投身手；积极从事throw away扔掉throw up呕吐throw sb into prison把某人投入监狱；throw at对准向扔去(希望击中)；throw to向(方向)扔去4.upside down 上下翻转过来短语归纳 inside out里面翻转过来的典例1) The naughty child is always turning everything in the room upside down这淘气的孩子老是把房问的东西搞得乱七八糟。 2) He wore the sweatshirt inside out他当时把运动衫反过来穿。VI 重点句子 （旨在提供句子结构等所需材料）1. It was a time when the killer whales, or “killers” as they were then called, helped the whalers catch thebaleen whales that were on their annual migration.那个时期，虎鲸（当时被称为“杀手”）帮助捕鲸人在每年须鲸迁徙时捕捉须鲸。解释It was/is a time when 曾经一度（那时）典例1) It was a time when motorcars were rare. 那是汽车很罕见的时代。2) It was a time when she could not bear the pain and wanted to kill herself.她曾经无法忍受病痛，想结束自己的生命。2. I had already heard that George didnt like being kept waiting, so even though I didnt have the rightclothes on, raced after him.我早就听说过，乔治不喜欢等人，所以尽管我还没穿上捕鲸该穿的衣服，还是跟在他背后跑了起来。解释even though=even if即使，即便（引导让步状语从句）典例1) We wont give up even if we should ten times.即便我们失败十次，我们也不会失败。2) Even though you may lose the chance of meeting your friend, you can not miss the meeting thisafternoon.即使你可能会失去会见朋友的机会，（但是你）也不能错过下午的会议。3. Im sitting in the warm night air with a cold drink in my hand and reflecting on the day-a day of puremagic!我坐在温暖的夜空下，手里拿着一瓶冷饮，回忆着当天的事情-这可是奇妙至及的一天。解释with+宾语+宾语补足语 在句中充当状语，表伴随，原因等典例1) The teacher came in with a thick book in her hand.老师走了进来，手里拿着一本厚厚的书。2) With a local villager leading the way, we found his house easily.有当地村民带路，我们很容易就找到了他家。3) With a lot of problems to solve, the newly-elected president felt like a cat on hot bricks.由于有很多问题急待解决，新当选的总统急得像热锅上的蚂蚁。 -