高中英语 Unit21 lesson2 brain power课件 北师大选修7 (2).ppt

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1、Unit 21 Human BiologyLesson 2 Brain Power2021/8/11 星期三1Match the key words with the definitions.Key wordsatom,billion,cell,nerve cell,organ1.one thousand million2.a part of the body that has a particular purpose,e.g.the heart,the liver3.the smallest piece of sth that can exist alone4.a tiny part of

2、the body that helps carry messages to and from the brain5.a unit of living matterbillionorgancellNerve cellatom2021/8/11 星期三2Listening strategies:completing a text1.Before you listen,read the text and predict what kind of information you need.remember you may need more than one word2.Underline some

3、important words in the text before each gap.3.While you are listening,listen for these important words -the information you need should follow them 4.You can complete the gaps using abbreviations at first this saves time.Then write them in full.2021/8/11 星期三3Listen to a science lesson.use the strate

4、gies to complete the gaps in this summary Exercise 22021/8/11 星期三4The brain consists of grey and(1)matter.It weighs(2).It uses(3)of the bodys energy.It contains over(4)which make up nerve cells.These nerve cells are connected by electrical impulses.There are more possible connections in one brain th

5、an there are(5).Scientists have mapped different areas of the brain which are responsible for(6).The area of the brain related to controlling(7)could be compared to miniature film studios.Our eyes and ears send signals(8),and it is our brain that interprets these signals and builds up a picture of t

6、he outside world.Scientists have also identified areas responsible for different emotions,such as(9),love and laughter.There are also different areas for different types of thinking,such as learning your own language and learning a(10)language.2021/8/11 星期三5The answers:(1)white(2)just over a kilo(3)

7、20%(4)100 billion cells(5)atoms in the universe(6)different functions(7)sight and hearing(8)all the time(9)fear(10)foreign2021/8/11 星期三6Listen to the lesson again and answer these questions:1.how do you think the teacher feels about his subject?2.what example does he use to explain the way the brain

8、 controls different parts of the body?3.what does he compare to a film studio?Enthusiastic A computerThe areas of the brain related to controlling sight and hearing2021/8/11 星期三7Listen to a student phone-in programme about revising for exams and complete the table:exercise 42021/8/11 星期三8Caller Advi

9、ce 2021/8/11 星期三9Caller Advice 1.DanPlane the revision,Work out a timetable and stick to it2.CharlesGet some exercise,Dont drink a lot of coffee3.MohammedMotivate yourself by giving yourself rewards,Have time to relaxThe answers:2021/8/11 星期三10Exercise 5:listen again and complete the function file w

10、ith these words:Must,mustnt,ought to,should,shouldnt,advise,need to,if I were you,have got to,could,theres no point in,its important to,what tips,can be counter-productive,what2021/8/11 星期三11Giving and asking for advice(1)have you got for me and our listeners?I think(2)plan your revision.I think you

11、(3)make a list of all the things youve got to study.You(4)work out what your priorities are.(5)do you think I should do?(6),Id make sure that I got some exercise.You(7)get out of the house and get some fresh air.I think spending hours and hours in the library without a break(8).You(9)drink lots and

12、lots of coffee.(10)you give me some advice?You(11)give yourself rewards.And you(12)give yourself a break.You(13)just think about the exam all the time.(14)doing that.Id(15)people to watch a good film.2021/8/11 星期三12The answers:1.what tips2.its important to3.should4.need to5.what 6.if I were you7.oug

13、ht to8.can be counter-productive9.shouldnt10.could11.must12.have got to13.mustnt14.theres no point in15.advise2021/8/11 星期三13 Vocabulary phrasal verbs 2021/8/11 星期三14Exercise 7 match the words and expressions below with the verbs n the text(1-11)appear,discover,look at in detail,make a note of,menti

14、on,pass,postpone,start,understand2021/8/11 星期三15Last month,I had an important English exam.I decided not to(1)put off studying(as I normally do!)and got up early every morning to(2)get down to work straight away.Im a“morning person”and(3)got a lot out of my revision.I always began by(4)going over a

15、practice test I had done-checking my answers and (5)finding out what Id got wrong.I also tried to (6)work out why Id made mistakes.2021/8/11 星期三16If I didnt understand sth.,Id(7)write it down and then(8)bring it up in class with my teacher.She was very helpful and she(9)went through all of the thing

16、s that would probably(10)come up in the exam.In the end,the exam wasnt so bad after all and I think I(11)got through it.Mind you,I still havent had my results yet!2021/8/11 星期三17The answers:1.put off-postpone2.get down to-start3.getout of4.go over-look at in detail5.find out-discover6.work out-under

17、stand7.writedown-make a note of8.bringup-mention9.go through-look at in e up-appear11.got through-pass2021/8/11 星期三18Exercise 8 work in pairs.Discuss these questions:1.What new information have you found out about brains?2.Which school subject do you get the most out of?3.Do you try to work out your

18、 English mistakes yourself before you ask your teacher?4.Do you write down vocabulary lists or just try to remember everything?5.Do you put off studying for an exam or a test until the night before?6.Have you ever got through an exam or a test you thought youd failed?2021/8/11 星期三19Exercise 1 on page 83 Homework:2021/8/11 星期三202021/8/11 星期三212021/8/11 星期三22