北师大版高中英语选修七Unit 21《Human Biology》(Lesson 1)课件2
Human Biology
功能
Giving and asking for advice 1. Other records remain doubtful. . . 2. Doping is not only a problem in athletics, it is part of every sport where. . . 3. Since the SARS epidemic ended, scientists have been doing. . . 4 .. . . it was forgotten by history until. . . 5.. . many of today������ s diseases have existed as long as human have. 6. Governments should prevent human cloning from ever happening before we destroy ourselves. 1. Conditional Revison and Mixed Conditionals(条件句和
It has been suggested that smaller brain appears to work faster, perhaps because the two sides of the brain are better connected in women. This means that little girls tend to learn to speak earlier, and that women can understand sorts of information from different sources at the same time. There are other important differences between two sexes. As white matter is the key to spatial( 空间的) tasks, men know better where things are in relation to other things. These brain differences also explain the fact that more men take up jobs that require good spatial skills, while more women speech skills. It may all go back to our ancestors( 祖先) , among whom women needed speech skills to take care of their babies and men needed spatial skills to hunt, according to one research. If all this disappoints you, it shouldn������ t. “ The brain changes throughout our lives according to what we do with it, ” says a biologist.
句型
语法
混合条件句) 2. Modalit Nhomakorabea 情态动词
写作
一篇议论文) A discursive essay( 19) where 引导定语从句 2011 全国高考 Ⅱ, though( 2011 北京高 10) 现在完成进行时 ( 2011 浙江高考, ( 2011 四 36) look 短语( 2011 上海高考, 23) until( 考, 2012 6) 情态动词( 2011 四川高考, 14) since( 川高考, 2011 浙 江 高 ( 21) 2011 辽 宁 高 考 , ( 35) 江苏高考, 2011 ( 32) 2011 全国高考Ⅰ, ( 24) 2011 北京高考, ( 11) 考, 2011 陕 西 高 ( 28) 2011 湖 南 高 考 , ( 8) 全 国 高 考 Ⅱ, 2011 福 ( 20) 2011 四川高考, ( 25) 2011 重庆高考, ( 24) 考, 2011 天津 ( 28) 2011 江西高考, 25) 虚拟语气( 建高考, 30) 2012 山东高考, ( 15) 高考,
考点
事实真 有人说女性比男性的脑容量小意味着女性不如男性聪明, 的是这样吗? s?The average s brains are smaller than men������ Did you know that women������ Since research has shown that the s. s brain weighs 10% less than men������ women������ 聪明 men must be more intelligent( the cleverer the animal, bigger the brain, Men and women always score similarly on Right?Wrong. than women. 的) Why?After years of despite the difference in brain size. intelligence tests, not just the s inside that matters, s what������ researchers have concluded that it������ study, While . white matter” and “ grey matter” The brain consists of “ size of the brain. brain is almost exactly thinking” the amount of “ men have more of the latter, the same in both sexes.
北师大版高中英语选修七课件Unit 21 Human Biology 21.1ppt版本
6.
at random
without thinking or deciding in
advance 7. violate 8. hearing 9. doubtful 10. annual
to go against or to disobey the ability to hear not sure;uncertain happening or done once every year
e across 偶然遇见
6.contribute
to 促成;导致
7. in
silence 沉默地;默不作声地
8.more
or less 或多或少,大约
9. out of breath 气喘吁吁
10. in use (机械、场所等)在使用中
一二三四五六七八
六、用所给词汇的适当形式完成句子
1.Many contemporary amateur athletes would have broken (bre
world records if they
had taken
(take) part in
first Olympic Games.
2.Ben Johnson would be (be) the 100 metres world reco
在两种性别间还有一个重要的不同。因为白质是解决空间 的关键,因此男性对于事物间的相对位置了解得更好。
这些大脑的不同也说明了这样一个事实:从事需要空间技 作的男性多,而语言技巧的女性多。一项研究表明,这要追溯 们的祖先,女性需要语言技巧来照顾婴儿而男性需要空间技 猎。如果这样的研究结果让你失望,没必要。“大脑一生都在 这取决于我们对它做什么。”一位生物家说。
版高中英语北师大版选修7课件：Unit+21+Human+Biology
Make Friends With Fresh Air Not only does escaping into the fresh air give you a break from all those germs circulating inside，but going for a stroll can actually boost your immunity. Relaxation Fights Off Colds Being stressed will increase your susceptibility to catching a cold.That may be because，over the long term，it leads to the ongoing release of stress hormones (荷尔蒙)，such as glucocorticoids(粮皮质激素)．
单
元 话
Unit 21 Human Biology
题
导
读
众所周知，疾病总是困扰我们的健康，有些秘诀可以帮助我们保持健康。 Four Secrets To Never Getting Sick
Ever wonder why you always seem to come down with a life interrupting virus this time of year，while other women you know sail through the seasons sniffle-free，cough-free，and ache-free?
touch something with our hands. 2.By touch.
高中英语北师大版高二下册选修七《unit 21 human biology》课件
单词 rob(robbed,robbed)
steal(stole,stolen)
辨析 宾语是被抢劫的人或地点,抢劫的物品由of引出,即rob sb./sp. of sth. 宾语为偷窃的物品,常用搭配为steal sth. from sb./sp.
6.decline v.减少,衰退;谢绝 n.衰退;减少 教材原句 ①...it is generally agreed that a patient's chances of recovery decline the longer they stay in a coma.
一句多译 很多人反对在这里建工厂。 ④Many people opposed building a factory here.(oppose) ⑤Many people were opposed to building a factory here.(opposed) ⑥Many people objected to building a factory here.(object) ⑦Many people were against building a factory here.(against)
单句填空 ②Half an hour later, she sought out her friend in the crowd. ③The new graduate is seeking for a job where he is badly wanted. ④You should seek advice from your lawyer on this matter.
4.faith n.信任;宗教信仰;信心 教材原句 ①With all the international effort being made, we have to have faith that there will be solutions in time to stop a Bird Flu epidemic in its tracks.
北师版选修7Unit 21 Human Biology
Eating Spinach Makes You Mentally SharpWhile Popeye ate spinach1 every day to maintain strong muscles，he was also bettering his memory，maybe without even knowing it.Consuming just a daily serving of spinach—or any type of leafy green，for that matter—may help slow the process of age－associated cognitive decline2，according to a new study.The reason？Vitamin K.A group of researchers at Rush University in Chicago who analyzed the diets and mental functions of 954 elderly people over a five－year period found that those who ate more greens in their diets were more likely to be mentally sharp.The researchers tracked the diets of participants，whose age averaged 81，for an average of five years.They found that people who ate one or two daily portions of green leafy vegetables had the same cognitive abilities as someone 11 years younger who never consumed leafy greens.“No other studies have looked at vitamin K in relation to change in cognitive abilities over time，and only a limited number of studies have found some association with lutein3，” said Martha Clare Morris，Sc.D.，assistant provost for community research at Rush University Medical Center and the leader of the study's research team.The team believes that other foods high in these nutrients，like asparagus4 andcarrots could provide the same benefits as the darker greens，and they intend to expand their research to explore this possibility.The research holds promise of a brain booster5that is accessible and affordable.“Since declining cognitive ability is central to Alzheimer's disease and dementia，increasing consumption of green leafy vegetables could offer a very simple，affordable and non－invasive6 way of potentially protecting your brain from Alzheimer's disease and dementia，” Morris said.Notes1．spinach n．菠菜2．cognitive decline 认知衰退3．lutein n．叶黄素4．asparagus n．芦笋5．booster n．助推器，辅助药剂6．non－invasive adj.非侵入的TaskWhich of the following is FALSE according to the passage?A．Vitamin K may help slow the process of age－associated cognitive decline.B．The researchers tracked the diets of participants for an average of five years.C．Only a limited number of studies have found lutein has the same function as vitamin K.D．The team believes carrots could provide the same benefits as the darker greens.答案 C。
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.
英语知识点北师大版高中英语选修七Unit 21《Human Biology》(lesson1.3)word学案-总结
Unit21 Lesson1学习目标By the end of the class, the students will be able to:●revise Conditionals●learn and experience Mixed Conditionals●learn and revise words related to the topic.学习过程课前准备Interval digest swap hearing pulseenhance supreme toleratedoubtful seekannual abuse violate fundamental oppo se课堂活动（一）预习交流Check the answers.（二）合作探究1. What is the general idea of the passage?2. Read the text again, match the key information with eac h part.Part one. (1-2) DopingPart one. (3-6) Records have fallenPart one. (7) Olympic spiritPart one. (8) Gene-therapy（三）分层提高Task 1 : Which kind of the conditionals do the following sentences belong to?A. the Zero ConditionalB. the First ConditionalC. the Second ConditionalD. the Third Conditional( ) 1.If I don’t eat breakfast, I always get hu ngry during class.( ) 2.If the rain stops，the match will begin.( ) 3. If my brother were here, everything would be all right.( ) 4. If he had seen you yesterday, he would have asked you about it.真实条件句______________ 虚拟条件句_____________________Task 2: Accordi ng to the above sentences, fill in the table.the First Conditional 用来描述________________________________________________________ the Second Conditional用来描述_______________________________________________________ the Third Conditional用来描述________________________________________________________ the Fourth Conditional用来描述_______________________________________________________ Practice（五）巩固反馈According to the Chinese, complete the following sentences .1. 如果他遵照医生的劝告，现在病就好了。
高中英语：21.1《Human Biology》教案(北师大版选修7)
Unit 21 Human BiologyLesson 1 Super AthletesGrammar : Conditionals Revision1．条件句有两类，一类是真实条件句，一类是虚拟条件句。
2．如果假设的情况是有可能发生的，就是真实条件句（Zero conditional）。
真实条件句中的谓语用陈述语气。
Eg。
If it doesn’t rain tomorrow, we will go to the par.如果明天不下雨,我们就去公园.3.如果假设的情况是过去或现在都不存在的,或将来不大可能发生的,则是虚假条件句,共有三种情况.Eg. If he had seen you yesterday, he would have asked you about it.如果他昨天见到你,他会问你这件事的.(事实上他昨天没有见到你,因此也未能问你这件事.)4.在含有虚拟条件句的复合句中,主句和从句的谓语都要用虚拟语气.虚拟条件从句和主句的动词形式列表如下:5.虚拟条件句的用法1)表示与现在事实相反的假设和结果(1st conditional)Eg. If I were you,I should/could/would/might tell him the truth.如果我是你,我就会/可能对他说实话.If he had time, he would/could/might go with you.如果他有时间,他就会/可能和你一起去.If my brother were here,everything would be all right.要是我哥哥在这儿,一切都没问题了.2)表示与过去事实相反的假设和结果(2nd conditional)Eg. If you had taken my advice, you woul dn’t/couldn’t have failed in the exam.如果你按照我的建议去做,你不会/不可能考试不及格.If I had had the money last week, I should/would/could/might have bought a car.如果我上星期有了这笔钱,我就会/可能买辆车.She would/could/might have telephoned you immediately, if she had won the game.如果她比赛赢了,她就会/可能给你打电话.If you had come a few minutes earlier, you would/could/might have met the famous singer.如果你早来几分钟的话,你就会/可能会见到那个著名的歌唱家.3)表示与将来事实可能相反的假设和结果(3rd conditional)Eg. If it were Sunday tomorrow, I should/would/could/might go to see my grandmother.如果明天是星期天,我就/可能去看我的奶奶.If it were to snow this evening,they would not go out.如果今晚下雪,他们就不出去了.If it should rain,the crops would/could/might be saved.如果下雨,庄稼就一定/可能有救.6.主,从句的动作发生时间不一致的情况(mixed conditional)有时条件从句中的动作和主句中的动作发生的时间不一致,这时动词的形式要根据它所表示的时间加以调整.Eg. If you had listened to the doctor, you would be all right now.如果你当初听了医生的话,身体现在就好了.(从句动作指过去,主句动作指现在) If you had practiced speaking English more, you would be able to speak it fluently.如果你多练习讲英语,现在就能讲得很流利了.。
北师大版高中英语选修七Unit 21《Human Biology》(Communication)课件
Answers: 1 Even though 2 Although 3 Therefore 4 However 5 while 6 Therefore
Now complete the sentences with the correct words from the blanket.
Some people find the idea of taking people off life support machines terrible, on the other hand, they don’t mind doing this if the patient doesn’t improve after many years. Some people find the idea of taking people off life support machines terrible, therefore they would resist the idea even if the patient doesn’t improve after many years.
Communication
Workshop
1. Rewrite the information below using these words and expressions to join the two sentences. Although, even though, however, on the other hand, therefore Some people find the idea of taking people off life support machines terrible. Others don’t mind doing this if the patient doesn’t improve after many years.
北师大版高中英语选修七nit 21 Human Biology
高中英语学习材料（灿若寒星*制作整理）nit 21 Human BiologyWarm-up一、学习词汇1. kidney n. 肾脏与身体有关的词汇：brain 脑；eye 眼睛, cheek 脸颊, jaw 颌，forehead 额，eyebrow 眉毛，lip 嘴唇body身体: neck脖子，shoulder 肩膀，chest 胸，stomach 腹，back 背，waist腰，knee膝盖heart 心脏, bone 骨头, liver肝脏, lungs肺, skin皮肤, wrist手腕, fingers手指2. interval n. 间隔；间歇i n ter- (前缀) 表“…间”，“相互的”之意，interact vi. 互动interchange n. 互通式立体交叉intercultural adj. 在不同文化间的international adj. 国际的at 20-minute intervals = at intervals of 20 minutes 每隔20分钟at intervals （1）时时（2）处处3. circulate vi. 循环Blood circulates through [in] the body. 血液在人体内循环。
circulation n. 循环4. pump vt. & vi. 用泵抽出（注入）pump n.. draw water with a pump 用水泵抽水 a bicycle pump 自行车的打气筒5. digest vt. 消化I can’t digest milk. 我喝牛奶不能消化。
digestion n. digestive adj.6. mineral n. 矿物mine n. 矿山 a coal mine 煤矿 a gold mine 金矿mineral oil 矿物油mineral water 矿泉水 a country rich in minerals 矿藏丰富的国家7．swap vi. 交换（常用于口语）for sth. 与某物with sb. 与人8. hearing n. 听觉His hearing is poor. = He is hard of hearing. 他的听觉不好。
高中英语-Unit21《Human-Biology》精美课件-北师大版选修7
给予某人做某事的特权
privilege sb. from a tax 免某人的税
第二十页，共85页。
①He enjoys diplomatic privileges.他享有外交特权。 ②I feel_privileged_to serve on the committee. 我很荣幸成为委员会的一员。 ③It is a_great_privilege to know you. 认识你真是莫大的荣幸。 ④In some countries, the president can privilege somebody from capital punishment. 在有些国家里，总统可以特赦一些人免于死刑。
A．seek
B．take
C．develop
D．undertake
解析：seek one's fortune 固定搭配，意为“发财，碰运气〞。
答案：A
第十六页，共85页。
3．oppose vt. 反对 opposed adj. 相反的，对立的 oppose A against/to B 把A与B相对照或相比 oppose oneself to 反对 Sb. be opposed to sth./doing sth. 某人反对某事 as opposed to 与……相对；与……成比照
第六页，共85页。
●重点句型
1．...the Spanish Flu is believed to have been the most acute epidemic in history. ……西班牙流感被认为是历史上最严重的流行性传染病。 2．...We have to have faith that there will be solutions in time to stop a Bird Flu epidemic in its tracks. ……我们必须坚信迟早有消灭禽流感的方法。