北师大版高中英语选修7课件：Unit 21 Period Two

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1、Unit 21 Human Biology,基础自测,内容索引,要点探究,达标检测,Period Two Lesson 2 Brain Power,基础自测,.重点单词 1. adj.荣幸的n.特权，优待vt.给予特权，特别优待 2. vi.满足；迎合vt.(为社交活动)提供饮食，承办酒席 3. n.进入；入学vt.进入；开始从事；输入 4. adj.充足的，充裕的,privileged privilege,cater,entry enter,ample,5. n.扫描vt.浏览 6. vt.款待；把看作；以方式/态度对待；治疗；处理n.乐事；乐趣；款待 7. n.储存vt.储存；贮藏；保存n

2、.商店；仓库 8. vt.推迟，延期,scan,treat,storage store,postpone,.重点短语 1. 由组成 2. 对负责 3. 加强，增强 4. 着手做 5. 立刻，马上 6. 提出；抚养；呕吐,consist of,be responsible for,build up,get down to,straight away,bring up,.重点句式 1.强调句型 Our eyes and ears send signals all the time，and our brain _ interprets these signals and builds up a pi

3、cture of the outside world. 我们的眼睛和耳朵不停地发送信号，大脑翻译出这些信号并构建出外部世界的画面。 2.whatever引导名词性从句 Your brain will do you want it to do as long as you cater to its needs. 只要你满足它的需要，你的大脑就会去做任何你想让它做的事情。,it is that,whatever,要点探究,The brain consists of grey and white matter. 大脑由大脑灰质和大脑白质构成。,重点词汇,(1)Happiness consists i

4、n good health.幸福在于健康。 (2)What he said didnt consist what he did. 他说的与他做的不一致。 句型转换 (3)Life mainly consists of happiness and sorrow. Life mainly happiness and sorrow. Life mainly happiness and sorrow.,with,is made up of,is composed of,Your brain will do whatever you want it to do as long as you cater

5、to its needs. 只要你满足它的需要，你的大脑就会去做任何你想让它做的事情。,(1)TV programs should cater to all tastes. 电视节目应当迎合各种人的不同口味。 (2)The university started some new language programs to cater the countrys Silk Road Economic Belt. 大学开设了一些新的语言项目，以满足国家的“丝绸之路经济带”战略的需要。(2015江苏) 单句改错 (3)They only publish magazines catering the in

6、terests of adults.,for, to,Id advise you to treat yourself by going to the cinema. 我建议你去看场电影来款待自己。,(1)treat vt.款待；把看作；以方式/态度对待；治疗；处理； n.乐事；乐趣；款待 treat sb. /oneself to sth. 用某物款待某人/自己 treat.as/like.把当作/看作 treat sb. with.以(方式)对待某人 be ones treat由某人请客 (2)treatment n.治疗；待遇；处理,(1)He treated us to a good d

7、inner on New Years Day. 在新年那天，他请我们吃了一顿好饭。 (2)They treated me their own child. 他们把我当亲生孩子看待。 (3)It this time.这次我请客。 (4)He varies the (treat) according to circumstances. 他根据情况变换治疗方法。 单句改错 (5)She felt she had unfairly treated，and complained to her boss.,as/like,is my treat,treatment, been,I decided not

8、to postpone studying(as I normally do！) and got up early every morning to get down to work straight away. 我决定不推迟学习(就像我平常做的一样！)，每天早上早起后立即着手学习。,postpone vt.推迟，延期 postpone sth. (to/till/until.)推迟某事(到) postpone doing sth. 推迟做某事,(1)Owing to the bad weather，we decided to postpone (leave). 由于天气不好，我们决定推迟动身。

9、 单句改错 (2)It has been decided that the meeting should be postponed in next Saturday.,until/to/till,leaving,(3)When they heard a cry for help，they rushed out of the room . 听到呼救声，他们立刻冲出了房间。 (4)Drive ，and then you will see a sign to the expressway. 直行你就会看见指示你开往高速公路的路标。 联想归纳 表示“立刻，马上”之意的短语还有： _等。,straigh

10、t ahead,straight away,right away，right now，at once，in a minute，in no time,She was very helpful and she went through all of the things that would probably come up in the exam. 她非常乐于助人并浏览所有可能在考试中出现的东西。,go through浏览；阅览；仔细检查；经历；做完(工作等)；用完；花完；(法案等)通过 look through仔细查看；浏览 see through看穿，识破 break through突破 l

11、ive through度过 pull through渡过难关，恢复健康 carry through贯彻到底,(1)I saw through your tricks from the start. 从一开始我就看穿了你的诡计。 一词多义 写出下列句子中go through的汉语意思 (2)Recent years we have gone through too many natural disasters，such as earthquake，floods and mudslide. _ (3)The new plan went through，which shocked us. _ (4)

12、I seem to have gone through a lot of money. _ (5)The professor will go through the experiment soon. _ (6)I always start the day by going through my mail. _,花完,经历,通过,完成,仔细查看,经典句式,Our eyes and ears send signals all the time，and it is our brain that interprets these signals and builds up a picture of t

13、he outside world. 我们的眼睛和耳朵不停地发送信号，大脑翻译出这些信号并构建出外部世界的画面。,It is.that.为强调句型。 (1)强调句型的基本结构为：It is/was被强调部分that/who其他部分(被强调部分可以是句子的主语、宾语或状语，但不能强调谓语、表语、补足语等。当被强调部分指人时，可以用who也可用that，其余情况使用that)。 (2)强调句的一般疑问句结构为：Is/Was it被强调部分that/who.? (3)强调句的特殊疑问句结构为：疑问词is/was itthat.? (4)对not.until.句型中的时间状语(从句)进行强调时的结构为：

14、It is/was not until被强调部分that其他部分。,(1)It was when I got back to my apartment that I first came across my new neighbors. 正是当我回到公寓时，我第一次偶然遇见了我的新邻居们。(2017天津) (2)It is at the hotel that the coach picks up tourists. 长途公共汽车是在旅馆接的游客。(2016天津) (3) dinner Jane bought yesterday?简昨天买的是晚餐吗？ (4) this place belongs

15、 to?这个地方属于谁？ (5)Bach died in 1750，but the early 19th century his musical gift was fully recognized. 巴赫于1750年去世，但是他的音乐才能一直到19世纪早期才完全被认可。 (2015重庆),it was not until,Was it that,Who is it that,that,单句改错 (6)It was April 29,2011 that Prince William and Kate Middleton walked into the palace hall of the wed

16、ding ceremony. 或It was April 29,2011 that Prince William and Kate Middleton walked into the palace hall of the wedding ceremony.,when, on,达标检测,.单句语法填空 1.We are (privilege) to welcome you as our speaker this evening. 2.The police had to make a forcible(强制的) (enter) into the house where the thief was

17、hiding. 3.There was (amply) time to get to the airport. 4.It took me a very long time to get the shock of her death. 5.Children are well catered with apple-themed fun and games. (2016全国),privileged,entry,ample,over,for,6.The disk has no virusesI (scan) it already. 7.They postponed (send) an answer t

18、o the request. 8.Why is it everyone thinks Im a fool? 9.The lovely children were treated sweets and cookies. 10.When you are given a task，youd better begin to do it straight .,have scanned,sending,that,to,away,.完成句子 11.直到这个地方被严重污染了他们才意识到该采取行动阻止污染了。the area was seriously polluted they realized that i

19、t was high time to take action to stop pollution. 12.今天下午你打算做什么？ 只要天气一直好的话，我可能晚些时候去散步。 What are you going to do this afternoon? Ill probably go for a walk later on .,It was not until,that,as/so long as it stays fine,13.阿蒂对大多数女人都没有耐心。 Artie most women impatience. 14.我们将做一切我们能做的去挽救他。 Well do to save h

20、im. 15.全书由19章组成。 The book nineteen chapters.,treated with,whatever we can,consists of/is made up of/is composed of,.短文改错 (2018重庆一中高二期中) Dear Sir， I apply to be one of the host family for the Chinese students. Built in a attractive neighborhood，our large house meet their needs. 或Built in an attractiv

21、e neighborhood，our large house meet their needs.,families,an, can或will,meets,Our car can take them to some places of interesting.With a good command of Chinese，Ill have no difficulty communicate with them. Above all，we hosted two British students last year，through that weve gained many experience. In addition to，theyll enjoy Chinese food as my mother has wonderful cooking skills. I would greatly appreciate if I could have the chance to host him.,interest,communicating,which,much,them, it,Looking forward to your reply. Yours， Li Hua,