2021版高考英语一轮复习讲义（北师大版）第1部分 选修7 2 Unit 20　New Frontiers.doc

一、语基必备知识(一)重点词汇——分类记忆Ⅰ.阅读词汇——知其意1．software n．　　　　　　 软件2．crew n. 全体机组人员3．garment n. 衣服4．welfare n. 福利5．conflict n. 争执；冲突6．digital adj. 数字式的7．official n. 官员8．colleague n. 同事，同僚9．recreation n. 消遣；娱乐10．patent n. 专利11．boundary n. 界线；边界12．phenomenon n. 现象13．headline n. 大标题14．sneeze vi. 打喷嚏15．autonomous adj. 自主的；自治的Ⅱ.核心词汇——写其形1．handy adj. 方便使用的2．download vt. 下载3．update vt. 更新4．rescue vt. 拯救，救援5．disconnect v. 使不连接；切断6．original adj. 起初的；最早的7．procedure n. 步骤；程序8．correspond vi. 通信；符合9．meanwhile adv. 同时10．outcome n. 后果，结果11．cure vt. 治愈12．wrestle vi. 努力解决；摔跤；搏斗13．fade vi. 逐渐变弱14．press vt. 按；压15．dilemma n. 困境，进退两难的窘境Ⅲ.拓展词汇——通其变1．assist vt.帮助；协助→assistance n．帮助；协助→assistant n．助手；助理2．technical adj.技术上的→technique n．技术3．latter n．后者→late adj.迟的→lately adv.最近4．starvation n．饥饿→starve v．挨饿5．equality n．平等→equal adj.平等的v.等于→equally adv.平等地；同样地6．assess vt.评估；评价→assessment n．评价；评估7．donate vt.捐赠；赠送→donation n．捐赠；赠送→donator n．捐赠者8．permanent adj.长久的，永久的→permanently adv.永久地9．permit vt.允许，许可→permission n．允许；准许10．poisonous adj.有毒的→poison n．毒药；毒物11．declare vt.宣告；宣布→declaration n．宣布12．exploration n．探测；探险→explore v．探险；考察；勘查→explorer n．探险家；勘探者13．settler n．移民；殖民者→settle vt.定居；解决→settlement n．定居；解决14．instructor n．指导者；教练→instruct vt.指导 →instruction n．指示，命令；用法说明1.“时间”相关词一览①temporary adj.　　 暂时的②permanent adj. 永久的③instant n．& adj. 紧迫(的)④interval n. 间隔，间歇⑤punctual adj. 守时的⑥timely adj. 及时的2.“通信”用语集锦①letter n．　　　 信件②e­mail n. 电子邮件③receive v. 收到(来信)④reply n. 回复(信件)⑤hear from 收到……来信⑥write to 给……写信3.特殊名词复数变化①phenomenon n．(pl.phenomena)　 现象②medium n．(pl.media) 媒体③bacterium n．(pl.bacteria) 细菌④mouse n．(pl.mice) 老鼠⑤datum n．(pl.data) 数据⑥basis n．(pl.bases) 基础(二)重点短语——记牢用活1．in__advance　　　　　　　　 提前，预先2．take__over 接收，接管3．give__away 泄露(秘密)；赠送4．shortly__after 不久后5．cure__sb.of__sth. 治好某人的疾病；纠正 (某人)的(坏习惯)6．come__into__conflict 发生冲突7．click__into 点击进入8．drop__off 下降9．rather__than 而不是10．in__conclusion 总之11．not__to__mention 更不用说12．figure__out 想出；理解；计算出13．get__across 使理解，把……讲清楚14．be__dedicated__to 致力于；献身于15．make__up__for 弥补1.“v.＋away”短语团聚①drive away　　　 赶走；驱赶②put away 收好，放好③turn away 转过脸去；避开④give away 赠送；泄露；出卖⑤break away 脱离；摆脱⑥die away (声音、风、光线 等)慢慢变弱2.rather相关短语一览①or rather　　　　 更确切地说②would rather 宁愿③rather than 而不是④not...but rather... 不是……相反 (而是)……⑤rather too 稍微，一点3.走进“be＋adj.＋to”短语圈①be addicted to　　 对……上瘾②be accessible to 容易接近， 易到达③be equal to 与……相等④be familiar to 被……熟知⑤be sensitive to 对……敏感⑥be dedicated to 致力于；献身于(三)重点句式——背熟巧用句型公式教材原句句型1：“by＋时间点”常与完成时连用By__the__year__2030,__development in biochemistry and medical science will__have__made it theoretically possible for us to live for at least 150 years.　到2030年，生物化学与医学科学的发展将使人类至少活到150岁在理论上成为可能。

句型2：be doing...when...正在做……这时……In the summer of 1905，this outspoken young man was__rocking his one­year­old baby when he was suddenly inspired.　1905年的夏天，当这个直率的年轻人正在摇晃着自己一岁大的孩子时，灵感突然就来了句型3：There is no doubt about/that...毫无疑问……There__is__no__doubt__about it.这毫无疑问二、语境强化训练Ⅰ.语境填词——根据提示写出该词的适当形式1．The needle treatment dating from the ancient times has cured(治愈) many diseases.2．He rescued(营救) the girl regardless of his own life, which set a good example for us.3．(2019·江苏卷)This has led companies and individuals to donate(捐款) money to developing countries to buy computer equipment and internet facilities.4．We need to hold back global warming and prepare for its outcome(后果)．5．Besides, the timetable should be updated(更新) according to the progress of our study from time to time.6．(2018·全国卷Ⅲ)For just a small donation(donate) you can take a tour with our garden guide.7．The workers are trying to apply modern techniques(technical) to this traditional program.8．His reason had been permanently(permanent) affected by what he had witnessed. 9．I don’t encourage people to take photographs like this without permission(permit), but by law we can publish.10．The assistant(assist) took the book and checked the price on the back cover.Ⅱ.派生词练习——用所给词的适当形式填空1．He has written a novel consisting of two parts lately and today he was late for work and left the latter part at home.(late)2．Many people have donated to the poor boy before and now some more people will make a donation to him again.With the donated money, he will live better.(donate)3．These explorers are exploring the area for oil now and their exploration began two years ago.(explore)4．In winter, many animals will starve to death if they can’t find enough food. Last year, about 200 animals died of starvation in this area.(starve)5．The assistant will come to your assistance soon and he will assist you with all the work.(assist)Ⅲ.选词成篇nothing like; carry out; wrestle with; by mistake;。