高中英语 21.5 Human Biology单元语法突破课件 北师大版选修7
21 Human Biology精讲课件 北师大版选修7课件
seek to do sth.试图做某事
seek out找出，挑出 seek sth.from sb.向某人征求某事 seek one's fortune寻找财富
高考总复习•英语（北师大版）
完成下列句子。
(1)He understands nothing，nor does he ________ (弄懂)．
答案： (1)We postponed the match because of the rain.
(2)Let's postpone making a decision until we have more information. (3)The match was postponed for half an hour because of the conflict of players of the two sides. (4)The meeting is postponed until next week.
(4)is opposing
高考总复习•英语（北师大版） 6．cater v．满足；迎合 ►归纳拓展 cater for sth./sb.迎合 cater to sth.满足某种需要
高考总复习•英语（北师大版）
完成下列句子。
(1)电视需要迎合各种不同的口味。 TV must________ many different tastes. (2)我们必须满足客户的需求。 ____________ the needs of customers. 答案： (1)cater for (2)We must cater to
高考总复习•英语（北师大版） 答案：(1)tolerate smoking in the library (2)I cannot tolerate your rudeness.
高中英语Unit21HumanBiologySectionⅥLanguagePointsⅢ讲义北师大
高中英语Unit21HumanBiologySectionⅥLanguagePointsⅢ讲义北师大版选修71012446Section ⅥLanguage Points(Ⅲ) (Communication Workshop，Language Awareness，Culture Corner &Bulletin Board)Ⅰ.单词拼写根据汉语或首字母提示，写出下列单词1．I am sceptical(怀疑的) about his chances of winning.2．It is absurd(荒谬的) to go out in such terrible weather.3．In India the cow is a sacred(神圣的) animal.4．Though in the terminal(晚期的) stage of cancer, he keeps walking every day.5．When she was young, she left home to seek her fortune(发财) abroad.6．The boys equipped themselves with food and water，and set off.7．My house is being painted, so I have to stay in a temporary one.8．There is growing concern about the effects of pollution on health.9．The firm was badly hit by competition from abroad.10．Because of the financial crisis，the staff declined from 10，000 to 8，000 last year.Ⅱ.拓展词汇根据词性和汉语提示，写出下列单词1．rob v．使丧失；抢劫→robber n．抢劫者→robbery n．抢劫2．equip vt.使有准备→equipment n．设备；配备3．fortune n．大笔钱财，巨款→fortunate adj.幸运的→fortunately adv.幸运地4．extend v．延长，延伸→extension n．延期→extensive adj.广泛的，广阔的5．concern n．担心；担忧→concerned adj.有关的；担心的6．enquire v．询问；打听→enquiry n．询问Ⅲ.补全短语根据提示补全下列短语1．on the other hand 另一方面2．live on 继续活着；继续存在；以……为主食3．fall into comas 陷入昏迷的状态4．return to normal 恢复正常5．at all costs 在任何情况下6．at any rate 无论如何；至少7．due to 由于8．rob...of... 抢劫9．in despair 绝望地10．be determined to do 决心/决定做……11．as a whole 作为一个整体；总体上12．for good 永远地Ⅳ.选词填空选用上述短语的适当形式填空1．On the other hand，many women choose to go out to work.2．Once the holidays were over，our lives returned to normal．3．In part this attitude was due to fear of trade union and employee reactions. 4．The expectation is huge and you have to win at all costs．5．He doesn't understand me, or at any rate not fully.[寻规律、巧记忆]v.＋sion→n. v.＋n.＋of→复合短语possession n．拥有admission n．允许进入expansion n．扩张cure sb.of...治愈某人某种疾病inform sb.of...告知某人……warn sb.of...警告某人……背教材原句记句式结构仿写促落实1.However，this is the first time I'vebroken my leg.然而，这是我第一次摔断腿。
北师大高中英语选修七英语Unit21《HumanBiology》课件
4.chances of recovery ( )
1.conclusion
(D)
2.what doctors know and don’t know
about comas
( B)
3.introduction of the topic ( A )
4.chances of recovery ( C )
years have never returned to their former mental state.
C
Even in less severe cases, doctors admit that they don’t know if
or how well patients will progress. When there is a minimum of
Exercise 1
Look at the picture. What kind of programme do you think it is ?
a chat show a documentary
√ a panel discussion
a game show
Exercise 2
Listen and check your answer to Exercise 1. Then put these topics in the order they are mentioned.
patients recover slowly(5)
others show little or no
progress over a period of years.(6)
treatment,they
may never return to normal.
北师大版 选修 高考英语总复习 Unit21HumanBiology 专题讲义
contradictory adj.对立的,不一致的;相互矛盾的
高频单词 重点短语 难点句型
-14-
四维热练完成句子
②The speaker had got confused,and started
contradicting himself
.
演讲者已经迷惑了,(说话)开始自相矛盾。
③Your statements today are in direct contradiction to
everyone is in even bigger danger.
当一些人拒绝接种并要求搭便车时,免疫力便下降,并且每个人
都处于更大的危险之中。(2017·北京卷,阅读理解C篇)
(1)seek help from sb向某人请求帮助
seek for寻求,寻找
seek out找出,挑出
seek to do sth试图去做某事
③Your lives are busy enough doing homework,playing
sports,making friends,
seeking after
your dreams.
你的生活足够忙碌去做家庭作业、进行运动、交朋友、追求你
的梦想。(2016·四川卷,阅读理解B篇)
-9-
高频单词 重点短语 难点句型
seek one’s advice向某人征求意见
seek one’s fortune寻找出路,寻找发迹的机会
(2)seeker n.搜索者;探求者
-8-
高频单词 重点短语 难点句型
四维热练
(1)完成句子
②On the Internet,people can seek information
高中英语Unit21HumanBiologyLesson1SuperAthletes课件北师大版选修
由于它是影响力大的欺骗形式，体育界是不会容忍运动员服 用兴奋剂的。本·约翰逊如果在1988年奥运会上没有被查出服用兴 奋剂的话，今天他还可能是百米世界纪录的保持者。其他一些短 跑纪录至今依然让人感到怀疑。比如，弗洛伦斯·格丽菲斯1988年 的百米纪录。她服兴奋剂了吗？如果美国运动员玛里昂·琼斯没有 服用兴奋剂的话，她能成功地进军奥运会吗？
谈到破纪录，我们就会碰到服用提高成绩的药物问题。研制 这些药物原本是用来帮助人们解除病痛的，但误用到运动员身 上，就会使他们在竞技比赛中超乎寻常地发挥，变得更快、更 强。服用这些药叫做“服兴奋剂”。尽管服兴奋剂有助于提高成 绩，但同时也会给那些滥用兴奋剂的运动员在日后生活中带来严 重的健康问题。
④The sports world does not tolerate doping as it is a fundamental form of cheating. Ben Johnson would still be the 100 metres world record holder if he had not been caught taking drugs in the 1988 Olympics. Other records remain doubtful, like Florence Griffith's 100 metres record back in 1988. Did she take drugs? If American athlete Marion Jones hadn't taken drugs, would she have made it to the Olympics at all？
单元 1.unless引导的条件状语从句 句型 2．时间名词引导的时间状语从句 单元 1.混合条件句——虚拟语气 语法 2．情态动词
Unit 21 Human Biology Period Five Grammar 课件(北师大版选修7)
本 课 栏 目 开 关
知识储备
Period Five
(2)用连词(but，or)，副词(otherwise)表条件。 I would have attended the party，but I have been too busy. 要不是我太忙，我就去参加那个聚会了。 (3)通过上下文表条件。 Such mistakes could have been avoided. 这样的错误本可以避免。
本 课 栏 目 开 关
知识储备
Period Five
If he shouldn’t come tomorrow，we should put off the meeting till next Monday. 要是他明天来不了，我们将把会议推迟到下周一。 注意： 在if虚拟条件句中，如果谓语动词有 were/should/had时，可以省略 if，条件从句要变为部分倒装 句，即把 were/should/ had提到主语前面。 Were I at school again， I would study harder. 如果我可以再上学，我会更努力地学习。 Had you come earlier，you would have caught the bus. 如果你早一点到，你就会赶上那趟车了。 Should it rain tomorrow，we would not go climbing. 如果明天下雨，我们就不去爬山。
Period Five
本 课 栏 目 开 关
知识储备
(2)could ①表能力、可能性、许可 Could you hear that all right? 你能听清楚吗？
Period Five
本 课 栏 目 开 关
②用于委婉、客气地提出问题或陈述看法，回答时用原 形 He said he could come to the party. 他说他会来参加聚会。 —Could I use your dictionary? —Yes，you can. ——我能用一下你的词典吗？ ——行，可以。
北师大版高中英语选修七第9讲：Unit21 Human Biology-语法篇(教师版) -word文档资料
Unit21 Human Biology-语法篇____________________________________________________________________________________________________________________________________________________________________1、掌握混合条件句中的虚拟语气的用法。
2、情态动词的用法。
混合条件句中的虚拟语气混合条件句主句是指条件句中含有不同的条件结构，谓语动词所表示的动作和条件从句谓语动词所表示的动作并不是同时发生,如一个与过去事实相反，另一个与现在事实相反。
在这种条件句中，动词的形式要根据具体情况进行调整。
If you had followed the doctor’s advice (then), you would be all right now.如果你那时听了医生的话,你现在就好了.(主句与从句发生的时间不同,应按照主句与从句各自的时间做调整.)If you had watered them more, the crops would be growing still better.如果你再给庄稼多浇些水,他们会长得更好.(指现在长得更好.)If you had watered them more, the crops would have grown still better.如果你早就给庄稼多浇些水,他们就会长得更好(表示对过去的虚拟)情态动词一．定义情态动词是一种本身有一定的词义,但要与动词原形一起使用，给谓语动词增添情态色彩，表示说话人对有关行为或事物的态度和看法，认为其可能、应该或必要等。
情态动词后面加动词原形。
二．分类：情态动词有四类：①做情态动词：must,can(could),may(might),ought to②可做情态动词又可做实义动词：need,dare③可做情态动词又可做助动词：shall(should),will(would)④具有情态动词特征：have(had) to,used to三．常用情态动词的用法1.must和have to表示必要性2.can’t表示不可能，mustn’t表示不允许或禁止3.don’t have to和needn’t表示没有必要4.can 和could 表示能力和可能性，还可表示请求允许5.must,might,could表示猜想和推测6.may表示可能和允许四．情态动词+have+过去分词1. “must+have+done”表示对过去事情的肯定推测，译成“一定做过某事”，该结构只用于肯定句。
北师大版高中英语选修七Unit 21《Human Biology》(Lesson 1)课件1
Doping
Gene-therapy
4. How did the drugs affect world records in the 1980s? Ben Johnson was caught taking drugs when he broke the 100 metres world record in the 1988 Olympics and no one knows if Florence Griffith was taking drugs when she set the women’s 100m record the same year.
Now let’s read the passage carefully and answer some questions.
1. Why would athletes today have broken records if they’d taken part in the first Olympic Games? Athletes are stronger and faster today than they were during the time of the first Olympic Games. Betterreasons equipment, training and 2. What made athletes’ diet. performances improve?
Ben Johnson
was caught taking drugs in the 1988 Olympics
5. Why are drug tests at sporting events often one step behind? Drugs tests are only developed after the new drugs are being used. This means that there is a time period when people are using the new drugs and no one knows about them.
高中英语 Unit21 HUMAN BIOLOGY语法.剖析.活用 北师大版选修7
语法·剖析·活用虚拟语气条件从句主句主语+would+动词原形与现在事实相反If+主语+动词过去式(be的过去式一律用were)与过去事实相反If+主语+had动词过去分词主语+ would+have+动词过去分词主语+would (should)+动词原形与将来事实相反were+不定式should +动词原形虚拟语气混合条件句在虚拟语气中，主句与从句的动作发生在不同的时间，这时主、从句谓语动词的形式因时间的不同而不同，这叫做混合条件句，也叫做错综时间条件句。
这样的句子不仅仅是时间的不同，更重要的是事实和假设的混合。
这种虚拟情况的动词形式应根据实际情况灵活使用。
如：If you had asked him yesterday, you would know what to do now.如果你昨天问他，你现在会知道做什么。
If you hadn’t watched TV that late last night, you wouldn’t be so sleepy.如果你昨天晚上看电视不那么晚，你现在不会这么困倦。
You would be much better now if you had taken my advice.假如你接受了我的意见，你现在就会好多了。
Had Mr. Li received two more votes in the last election, he would be our chairman now.如果李先生在最后的竞选中，多得两票，他现在会成为我们的主席。
虚拟条件句的倒装虚拟条件句的从句部分如果含有were, should或had, 可将if省略，再把were, should 或had移到从句句首，实行倒装。
If it had rained last night , it would be very cold today.＝Had it rained last night, it would be very cold today.如果昨天下雨了，今天会很冷的。
高中英语Unit 21 Human Biology Warm up课件 北师大版 选修7
This organ beats 100,000 times a day . With each beat it moves 80 milliliters of blood – that’s 8,000 liters of blood per day ! It pumps blood into the lungs , where it receives oxygen , before being pumped around the rest of the body . heart
3. a) You should take up some kind of sport ! b) Good-once a week is better than never . c) Excellent ! You must be very fit .
4. a) Well done . You probably save lots of money on dentist bills .
3.How often do you do physical exercise, enough to make you out of breath ?
a) never b) once a week c) two or three times a week
4.How often do you eat sweets or chocolate a) never b) sometimes c) every day
5. Revise and learn more about conditional sentences .
Key Words
Look at the following statements and decide which part of the body is described .
高中英语 Unit21 HUMAN BIOLOGY难句剖析拓展 北师大版选修7 教案
难句·剖析·拓展1. Many contemporary amateur athletes would have broken world records if they had taken part in the first Olympic Games.假如许多业余选手参加了第一届奥运会的话，他们有可能打破世界纪录。
剖析这是一个主从复合句，Many contemporary amateur athletes would have broken world records是主句, if they had taken part in the first Olympic Games是条件状语从句。
2. Taking these drugs is known as“doping”and although they enhance performance, they also cause serious health problems in later life for those who abuse them. 众所周知，服用这些药就是服“兴奋剂”。
尽管兴奋剂有助于提高成绩，但同时也会给那些滥用兴奋剂的运动员招来日后生活中的健康麻烦。
剖析这是一个含有and的并列复合句，在第一个并列分句Taking these drugs is known as“doping”中，主语和宾语都是动名词，在第二个并列分句中，although they enhance performance是让步状语从句，they also cause serious health problems in later life for those是主句，who abuse them是定语从句。
3. Doping is not only a problem in athletics, it is part of every sport where athletes seek to achieve beyond their natural limits and are prepared to cheat to do so. 服用兴奋剂不仅仅是田径运动的问题，也是有运动员想寻求取得超常体育成绩而准备欺骗的每一项体育项目的问题。
高中英语Unit21HumanBiology单元尾核心要点回扣课件北师大版选修7
【参考范文】 If Mike had done a thorough examination last year，he would not have to tolerate the pain of cancer now.So annual systematic medical examination can help stop some terminal illness in its tracks.So，we should have us gone through thoroughly every year.
当近来媒体报道将禽流感与过去的流行性传染病相提并论时，为寻找未 来将会发生什么的线索，吉姆·史密斯查询了一下流行病的历史。
4．____________ the First World War and left families mourning worldwide. 它爆发于第一次世界大战接近尾声时，使全球的家庭陷入了一片哀声之 中。 5．I've broken bones before.However，this is the first time ____________． 我以前摔断过骨头，但是这是我第一次弄断腿。
单元尾 核心要点回扣 Ⅰ.重点单词 1.________n．& v．怀疑→________adj.怀疑的，不肯定的 2．________n．进入；入学→________vt.进入，注册→________n．通向…… 的入口 3.________vt.适应，调整；改编→________n．变化；变种 4.________n．信心→________adj.忠诚的，守信的→________adv.忠诚 地；守信地
第六页，共13页。
【答案】 1.all；any；a；the；at 2.through；after；by；in 3.any；this/that； a 4.for；of；no
高考英语一轮复习Unit21HumanBiology课件北师大版选修7
二 课堂重点释疑
1．postpone vt.推迟，延期 [记牢]
postpone doing sth. postpone sth.until/to ...
延缓/推迟做某事 把某事推迟到……
[练通] 单句语法填空 ①The military training for the freshmen in the new term was postponed until/to the next Sunday because of the bad weather. ②The headmaster postponed holding (hold) the meeting until all teachers arrived at the meeting room.
——以点扩面——
单元话题——医药与健康
子话题 1 医药类别
①drug n．药，药物；毒品
②medicine n．药
③pill n．药丸，药片
④capsule n．(药)胶囊
⑤herb n．草药
⑥tablet n．药片
⑦poison n．毒药
子话题 2 疾病的分类
①stress n．精神压力，心理负担 ②sneeze vi.打喷嚏
1．enhance vt.
增强；提高
2．supreme adory adj.
强制性的，义务的
4．controversial adj.
有争议的
5．contradict vt.
与(其他事物)相矛盾
6．interpret vt.
翻译；解释
7．acute adj.
①选词填空： declining，所选词的动词形式为 decline ，其意 为 下降，谢绝 ②写出加黑词在本单元中的反义词： prohibited ，加黑词后 若直接跟动词需用 动名词 作宾语 ③写出加黑词在本单元的同根名词： adaptation ，与加黑词 形近义异的词有： adopt ，其意为 采取，收养
2019_2020学年高中英语Unit21HumanBiology单元重点小结课件北师大版选修7
重点词汇 重点句型 重点语法
功能
走近高考 拓展阅读
He became interested in two theories that possibly explained how cholera killed people.The first suggested that cholera multiplied in the air.A cloud of dangerous gas floated around until it found its victims4.The second suggested that people absorbed5 this disease into their bodies with their meals.From the stomach the disease quickly attacked the body and soon the affected person died.
6.The name was chosen
at random
.
7.Hearing the news,he left
straight away
.
8.You must stop the press from finding out the
truth
at all costs
.
9.He
came across
mourning worldwide.
它爆发于第一次世界大战接近尾声时,使全球的家庭陷入了一片哀
声之中。
重点词汇 重点句型 重点语法
功能
走近高考 拓展阅读
5.I’ve broken bones before.HowevБайду номын сангаасr,this is the first