2020版北师大版高考英语一轮课件：选修7 预习案 Unit 21 Human Biology

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1、Unit 21 Human Biology,-2-,必背表达单词写作信手拈来 circulate vi. 循环 pump vi. 用泵抽出(注入) digest vt. 消化 mineral n. 矿物 hearing n. 听觉 pulse n. 脉搏 abuse vt. 滥用 tolerate vt. 忍受 doubtful adj. 怀疑的,不肯定的 seek vt. 寻找 annual adj. 年度的;每年的,一年一次的 lame adj. 站不住脚的,不易令人相信的,-3-,privileged adj. 荣幸的 cater vi. 迎合;满足 entry n. 进入;入学 amp

2、le adj. 充足的;充裕的 herb n. 草药 scan n. 扫描 treat vt. 款待 storage n. 储存 postpone vt. 延期;推迟 cancer n. 癌症;癌 urban adj. 城市的 rebuild vt. 重建 trial n. 实验 prohibit vt. 禁止,-4-,unite vt. 团结;联合;统一 pause n. 暂停,停顿 symptom n. 症状 routine n. 常规;惯例 press n. 新闻界;报界 foresee vt. 预见 teamwork n. 协作;配合 faith n. 信心 pill n. 药丸;药片

3、 weekly adj. 每周一次的 temporary adj. 短暂的,临时的 numb adj. (思维、感觉、反应)麻木的 sacred adj. 神圣的,-5-,rob vt. 抢劫;使丧失 helmet n. 防护帽,头盔 decline vi. 下降 minimum n. 最小;最低 institution n. 团体;公共机构 equip vt. 使有准备 firm n. 公司;商行 fortune n. 大笔钱财,巨款 rate n. 比率 enquiry n. 询问 deadline n. 截止日期,最后日期 submit vt. 提交,-6-,appendix n. 附录

4、 extension n. 延期 tractor n. 拖拉机 spade n. 锹,铲 tin n. 罐 concern n. 担心;担忧 vote vi. 表决 sceptical adj. 怀疑的 belly n. 腹部;肚子 absurd adj. 荒谬的;不合理的 circumstance n. 情形,情况,-7-,识记阅读单词读文理解通畅 interval n. 间隔;间歇 swap vi. 交换 performance-enhancing adj. 增强表现的 supreme adj. (程度)最大的,极度的 fundamental adj. 根本的,基础的 compulsory

5、 adj. 义务的;强制性的 controversial adj. 有争议的 oppose vt. 反对 dash n. 短跑 marathon n. 马拉松赛跑 contradict vt. 与(其他事物)相矛盾,-8-,violate vt. 违反;违背 acute adj. 严重的,剧烈的 statistics n. 统计资料;统计数字 parallel n. 平行线;极相似之处 tissue n. 组织 adaptation n. 变化;变种 mourn vi. 感到悲痛 carrier n. 带菌者 prescription n. 处方,-9-,tablet n. 药片 underl

6、ine vt. 强调;表明重要性 thorough adj. 彻底的;细致的 systematic adj. 系统化的 terminal adj. 致命的;晚期的 unconditionally adv. 无条件地 tentatively adv. 不完全地 aluminium n. 铝,-10-,语用规律归纳 1.“足够的”多种表达 (1)enough (2)ample (3)adequate (4)plenty,-11-,2.“-ly”结尾的形容词集锦 (1)weekly 每周(一次)的 (2)monthly 每月(一次)的 (3)yearly 每年(一次)的 (4)daily 每日的 (

7、5)lonely 孤独的 (6)lovely 可爱的 (7)likely 可能的 (8)deadly 致命的 (9)brotherly/sisterly 兄弟/姐妹般的 (10)manly 像男人的;强壮的 (11)friendly 友好的,-12-,3.“强调”的多种表达 (1)underline v. 强调;表明重要性 (2)stress v. 强调;着重 (3)strengthen v. 加强;变强大 (4)emphasise v. 强调 (5)emphasis n. 强调;着重;加强语气,-13-,4.以“-s”结尾的名词的单复数 (1)statistics 统计数字/统计资料(复数)

8、;统计学(单数) (2)politics 政治(单数) (3)physics物理(单数) (4)mathematics=maths数学(单数) (5)series系列(单复数同形) (6)species物种(单复数同形) (7)Aids艾滋病(不可数) (8)news新闻(不可数),-14-,构织连脉词族 1.circulate vi. 循环circulation n. 循环circulator n. 传播者;循环器 2.digest vt. 消化digestion n.消化力; 领悟digestible adj.可消化的,可摘要的,容易了解的digestibility n. 消化性; 可消化

9、性 3.tolerate vt. 容忍tolerant adj. 容忍的;有耐药力的;宽恕的tolerable adj. 可容忍的,可忍受的tolerance n. 容忍,忍受,宽容tolerably adv. 可容忍地,可忍受地 4.threat n. 威胁threaten vt. 吓唬,威胁threatening adj. 吓人的threatened adj. 受到威胁的 5.store vt. 储存 n. 商店,贮藏,仓库storage n. 储存 6.prohibit vt. 禁止prohibition n. 禁止,-15-,7.thorough adj. 彻底的;细致的thoroug

10、hly adv. 彻底地;细致地 8.faith n. 信心faithful adj. 踏实的,可靠的faithfully adv. 忠诚地;切实遵守地;如实地 9.temporary adj. 临时的;短暂的temporarily adv. 临时地;短暂地 10.condition n. 条件conditional adj. 有条件的,假定的unconditional adj. 无条件的,绝对的,无限制的unconditionally adv. 无条件地,绝对地,无限制地 11.equip vt. 使有准备;装备;配备equipment n. 设备;装备 12.fortune n. 大笔钱财

11、,巨款fortunate adj. 幸运的fortunately adv. 幸运地unfortunately adv. 不幸地 13.extend vt. 伸出,延伸,扩大extension n. 延期 14.submit vt. 提交submission n. 提交;投降,-16-,语境活用 1.Well,youve got heart and circulation (循环) problem.If these symptoms (症状) go on,youd better have a thorough examination. 2.Ordering the equipment(设备) b

12、efore the deadline(截止日期),youll get a discount of 15%. 3.Wearing uniforms in our school is not compulsory(强制性的),but it has been a routine (常规) for any student. 4.From my perspective,the football match should be postponed(推迟).You know,its absurd (荒谬的) to have a match on such a stormy day. 5.Experts co

13、nfirm that food stored in our stomach temporarily (temporary) and is often digested (digest) in less than six hours.,-17-,1. at all costs不管多大代价,无论如何 2.cater to迎合 3.stop sth in its tracks 突然止步 4.prohibit sb from doing sth禁止某人做某事 5.bring up 抚养,养育 6.rob sb of sth抢劫某人某物 7.be responsible for 对负责 8.under/

14、in no circumstances决不 9.get down to 开始,着手 10.at random随便地,随意地,-18-,语境活用 用上面的短语填空 1.Brought up on the farm,Jack knows well how hard farmers always work. 2.Little time is leftits time for us to get down to working together to achieve our goal. 3.Our literature and art ought to cater to popular taste.

15、4.Remember that in/under no circumstances should we give away our plan before its carried out. 5.Its widely accepted that smoking is responsible for many cases of lung cancer.,-19-,语用规律归纳 1.含有at的常用短语 (1)at all costs 不管多大代价 (2)at random 随意地;随便地 (3)at any rate 无论如何 (4)at first sight 乍一看 (5)at high spe

16、ed高速 (6)at a price of.以价格 (7)at present目前;现在 (8)at least/most至少/多 (9)at length详细地;终于 (10)at the mercy of任由摆布,-20-,2.faith构成的短语小结 (1)have faith in对有信心;信任 (2)lose faith in对丧失信心 (3)break faith with sb对某人不忠诚 (4)in good faith真诚地;诚意地,-21-,领悟教材语境 1.Unfortunately,it is not easy to catch athletes using illeg

17、al drugs.(Page 34) 不幸的是,很难抓住使用禁药的运动员。 考点提炼“Its+adj.+to do sth”句式表示“做是”。 2.Unless we are careful,“gene-therapy” will be the next big threat.(Page 34) 除非我们小心翼翼,否则,“基因治疗”将会成为下一个重大威胁。 考点提炼unless.,.表示“除非,否则”。,-22-,3.In the future,athletes who have their genes changed might be able to do the 100 metres da

18、sh in just 8 seconds or the marathon in less than two hours.(Page 34) 将来,基因发生改变的运动员可能在仅仅8秒内跑完100米,或在不到两小时的时间里跑完马拉松。 考点提炼have sth done的用法。 4.The Olympic spiritthe spirit of competition which emphasises taking part rather than winning has been violated by the desire to succeed at all costs.(Page 34) 人

19、们不惜任何代价来获胜的愿望违背了重在参与而不是获胜的奥林匹克精神。 考点提炼.rather than.“是,而不是”。,-23-,高考写作情景 1.不了解所有的事实很难做出决定。 Its hard to make a decision without knowing all the facts. 2.除非天气非常冷,否则我总是开着窗户睡觉。 I sleep with the window open unless its really cold. 3.我将在下个月末把这本书完成。 Ill have this book finished by the end of next month. 4.这是

20、一本词典,而不是一本教材。 This is a dictionary rather than a textbook.,-24-,话题与语法填空 The Olympic spirit has been violated by the desire to succeed at all costs.Records have improved a lot now than before.With athletic performances continually 1.improving(improve),records have fallen in track and field year after

21、 year due to better equipment,training and diet since the first Olympic Games.However,recently,improvements have begun to slow 2.down.Doping creates supreme athletes,but it also causes serious health problems.The sports world isnt 3.tolerant(tolerate)of doping and it is a problem not only in athleti

22、cs but also in every sport 4.where athletes seek to achieve beyond their natural limits and are prepared to cheat to do so.New drugs are developed all the time so it is not easy to catch athletes,-25-,5.using(use)illegal drugs.Its compulsory for winners 6.to be tested(test) but other participants are only tested 7.at random.In the future,athletes who have their genes 8.changed(change) might be able to do better 9.than they should be.So 10.if doping and gene-therapy continue to affect the outcomes of major sporting events,the word “hero” will have lost all meaning.,-26-,-27-,