英语高二下北师大版Unit21《Human Biology》(Lesson 1)课件

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名称 英语高二下北师大版Unit21《Human Biology》(Lesson 1)课件
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更新时间 2013-03-11 21:02:00

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课件38张PPT。Warm-up(Lead-in)ObjectivesQuestionnaireNew wordsDiagram of the bodyListeningLesson 1(Lead-in)New wordsThe Olympic spiritFast readingFurther understandingHomework教学
流程图Lead-inDo the questionnaire with your partner! Do You Look After Yourself ?
1.How many hours do you sleep per night ?
under 6 hours b) about 7 or 8 hours
c) more than 9 hours
2.How often do you clean your teeth ?
once a day b) twice a day
c) after every meal 3.How often do you do physical exercise,
enough to make you out of breath ?
never b) once a week
c) two or three times a week
4.How often do you eat sweets or chocolate?
never b) sometimes c) every day
5. How many pieces of fresh fruits do you
eat per day ?
a) One or two b) more than two c) noneCheck your answers to the questionnaire.
1. a) You probably aren’t getting enough sleep.
b) 7 or 8 hours per night is sufficient for most
people.
c) you are a sleepy head , aren’t you!
2. a) Once a day is not enough!
b) Once in the morning and once at night is
probably OK.
c) Very good. Dentists recommend cleaning
teeth after every meal.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.
b) Well, every now and then is OK.
c) You should cut down!
5. a) Good. As they say -- an apple a day keeps
the doctor away!
b) Very good. Doctors recommend several
pieces of fruit per day.
c) You really should try to eat more fresh fruit.2. learn and revise words related to the topic. 3. get the general idea of the text
and the writer’s viewpoints. In this period, we will be able to 1.know the unit objectives. kidney n. 肾liver n. 肝脏brain n. 大脑circulate v. 循环For example:pump vi. 用泵抽出(注入) mineral n. 矿物n. 听觉 n.间隔;间歇 n. 脉搏 vt. 消化 vi. 交换 interval
digest
swap
hearing
pulse
Read the words,then match the words with their
Chinese meanings.
Find six to label the parts of the body in the diagram.Key WordsliverbrainlungsstomachheartkidneyExercise 2 (Page 33)Look at the following statements and decide which part of the body is described.
ankle, brain, eye, heart, kidney, bone,
knee, liver, lungs, muscle, ribs, spine,
stomach, wrist, fingers Key Words : The BodyThis organ weighs about a kilo and is made
up of two sides. It is like a super computer that
processes information. This organ is like a bag which reeives
everything you eat.It digests your food
and sends vitamins and minerals into
the blood.brainstomachThis organ beats at regular intervals 100,000
times a day. With each beat, it circulats 80 ml
of blood through the body—that’s 8,000 litres
of blood per day! It pumps blood into the lungs,
where it receives oxygen, Before being
pumped around the rest of the body.heartThis is a very delicate organ. There are
two in a body and they have delicate
lids which protect them. Light enters and
reaches special light sensitive cells. These
work like a camera and finally send signals
to the brain.eyesThese organs absorb oxygen and get rid of
carbon dioxide. They are found
on either side of the heart. They
receive air as a result of breathing
and when blood passes through,
They give it oxygen. lungs100 metres
in 8 seconds?Lesson 1 Super Athletes Which champion athlete do you think can run 100 meters in 8 seconds?

Is it possible for you?Maurice Greene
第一位同时拥有50米、60米和100米3
项世界记的男选手。 Floyd Landis
2006年环法自行车赛冠军, 第三位获此殊荣的美国人 Marion Jones
2000年悉尼奥运会
女子100米、200米、4x400米接力
冠军 Florence Griffith
奥运短跑三项金牌得主,同时也是100米及200米短跑的世界纪录保持人 Ben Johnson
汉城奥运会以惊人成绩打破男子百米世界纪录并夺得金牌 Super Athletesdoping n. 服用兴奋剂gene-therapy 基因疗法dash n. 短跑marathon n.马拉松赛跑enhance
supreme
tolerate
doubtful
seek
annual
increase
stand; bear
highest, greatest
yearly
do not believe, suspicious
look for
Match the words with their meanings.abuse vt. 滥用They the trust the company had shown in them, the boss is very angry.滥用abusedusedChoose the correct word!violate vt. 违反,违背Do doping and gene-therapy
the Olympic spirit? violatevioletChoose the correct word!违背fundamental adj.根本的,基本的 Doping is a form of cheating.fundamental根本的abuseviolateChoose the correct word!controversial adj.有争议的 oppose vt. 反对Gene-therapy is very and many people further research into it.
有争议的
反对
controversial
oppose Choose the correct word!What is the Olympic spirit?
Is it good for athletes to cheat in the competition?Fast ReadingWhat is the general idea of the passage?The athletes who took part in the first Olympic Games are not as fast as athletes today.
B. Doping is a huge problem in the sporting world.
C. The present and future of the sporting world is being seriously and negatively affected by doping and gene-therapy.
D. Ben Johnson, Florence Griffith and Floyd Landis have all shocked the world by their speed.
Read the text again, match the key information with each part.Records have fallenDopingGene-therapy Olympic spiritPart one. (1-2)Part two. (3-6)Part three. (7)Part four. (8)come across the issue, drug, cure disease,
in the wrong hands, abuse, tolerate doping,
gene-therapy, big threat, oppose,
violate the Olympic spirit, taking part rather than winning1.Show the writer’s attitude towards the drugs and gene-therapy.You may refer to the following words and expressions or the text.
2. Use your own words to show the writer’s viewpoints.A: Which champion athlete can run 100 metres in 8 seconds?
B:I don’t know. But we come across the issue-enhancing drugs. These drugs are developed to help people with illnesses, but in the wrong hands, they create “supreme athletes”.
A: Taking these drugs is known as “doping”, they cause problems for those who abuse them.
B: The sports world does not tolerate doping as it is a fundamental form of cheating.
A: Yes. “Gene-therapy ”will be the next big threat. It is controversial and many people oppose further research into it.
B: I agree. Both doping and gene-therapy violate the Olympic spirit. The spirit of competition-higher, faster, stronger-emphasises taking part rather than winning. That’s why thousands of people are crazy about their hero and the great Olympic!
HomeworkReview the key words and read the text.