北师大版高中英语选修7Unit21 Human Biology Lesson3Epidemics Explained
Unit21 Human Biology Lesson3 Teaching aims
1.words and phrases：
nguage points in the text
3.reading strategies
4.exercises about text
5.vocabulary:synonyms
Teaching time
Two periods(两课时连堂)
Teaching process
Step 1 Revision
have a diction about the new words in lesson 2 Step 2 learn the new words of lesson 3
1.ask some students to read the new words first and correct their pronunciation
2.play the tape and have them read after the tape
3.give them a few minutes to read the new words freely, tell them if they can’t read the words, encourage them to ask the teacher . step 3 reading
1.ask students read the key words in exercise 1 and guess their meaning.
2.let them discuss in pairs which of these diseases can be or are epidemics
2.do exercise 2 by themselves in pairs.then check their answers on page 103
3.let the students read Reading Strategies.
4.students then read quickly through the text to get a general idea of it.
5.students complete the text with the missing paragraphs.
6.check their answers by having individuals read out the complete text.
7.give students a few minutes to do exercise 4.
step 4 language points
1.epidemics explained
2.epidemics throughout history
3.with new health threats on the rise.
4.look at
5.since the beginning of life on earth
6.as long as
7.as early as 430 BC
8.on record
9.be attempt to do sth.
10.sweep through
11.die from the disease
12.be known as
13.a lack of
14.provide the perfect conditions for..
15.in highly populated areas all over Europe
16.one half to lne third of the population was lost to the Black Death
17.it is believed to be…
18. die of the flu
die in the war
19.begin with,end with
20.the number of
21.such as
22.natural defences
23.be harmful to
24.make up
25.expand across
step 5 vocabulary:synonyms
1.exercise 6
a)ask the students to do the exercise individually.
b)then check their answers
2.exercise 7.
a)ask some students to come to the blackboard to do the exercise
b)check their answers
step 6 Homework
copy the new words。
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.
北师大版高中英语选修七第8讲：Unit21 Human Biology-词汇篇2(教师版)
Unit21 Human Biology-词汇篇2____________________________________________________________________________________________________________________________________________________________________1、掌握本单元Lesson2、Lesson3及Communication Workshop中的重点单词||，短语及句型||。
2、灵活运用本单元Lesson2、Lesson3及Communication Workshop中的重点单词||，短语及句型||。
重点单词与短语1.relate v.使有联系；涉及；与……相关词汇拓展：relative adj.相对的；比较的relatively adv.相对地related adj.相关的；有联系的Much of the crime in this area is related to drug abuse.这一地区的许多犯罪都与嗜毒有关||。
2.it 用于强调句强调句型：it +is/was+被强调部分+that/who+其他部分||。
可以对主语、宾语、状语等进行强调||。
I met an old friend in the street yesterday.( 对主语、宾语、状语等进行强调可表示为)It was I that/who met an old frend in the street yesterday.It was an old frend that/ who I met in the street yesterday.It was in the street that I mett an old frend.It was yesterday that I mett an old frend in the street.3.put off 推迟put off +n./doing sth.推迟某事/做某事I’ll have to put off my visit until nexr month.我不得不把我的访问推迟到下个月||。
北师大版高中英语选修七Unit 21《Human Biology》(lesson1)word学案
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 pulse enhance supreme tolerate doubtful seekannual abuse violate fundamental oppose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 pass age?2. Read the text again, match the key i nformation with each part.Part one. (1-2) Do pingPart one. (3-6) Records have fallenPart one. (7) Olym pic spiritPart one. (8) Gene-therapy（三）分层提高Task 1 : Which kind of the conditionals do the following se ntences belong to?A. the Zero ConditionalB. the First ConditionalC. th e Second ConditionalD. the Third Conditional( ) 1.If I don’t eat breakfast, I always get hungry 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: According to the above sentences, fill in the table.nditionalthe 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（四）总结归纳（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。
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.
北师大版高中英语选修七Unit 21Human Biology Lesson 1 Super Athletes B名师公开课精品课件(38张)
寻找；探索；追求 徒然，白费力气 随便地，随意地 不论多大代价，无论如何 由于 偶然遇见 促成；导致 沉默地，默不作声地 或多或少，大约 气喘吁吁地 (机械、场所等)在使用中
1．in vain徒然，白费力气 [教材原句] Floyd Landis made several lame excuses
in general in secret in surprise
大体上 秘密地 惊奇地
in particular
in return in turn in effect
特别地
作为报答；作为回应 反过来 实际上
②I asked her opinion, but she just asked me a question
other participants are only tested at random. 获胜者被强制性地进行检查，而其他参赛选手则只是随意地 检查。 ①She wrote several winning numbers at random. 她随便写了几个中奖号码。
②Feeling bored, we wandered through the streets in the city
点此进入
1．[句型展示]
Ben Johnson would still be the 100 metres
world record holder if he had not been caught taking
drugs in the 1988 Olympics. 1988年的奥运会上，如果本· 约翰逊没有被查出服用兴奋 剂的话，他还可能是百米赛跑世界纪录的保持者。 [典例背诵] Diana was caught taking money from her mother's purse. 戴安娜从她母亲钱包里拿钱时被当场发现。
北师大版高中英语选修七Unit 21《Human Biology》(Lesson 3)课件
scientists have been doing tri. Lines 6- 8) (Page 38, treatments to prohibit any future outbreaks. 科学家们就一直在做治疗实验以防止将来再次 疫潮结束后, 非典” 从“ 爆发。 句子使用了现在 时间状语是 since the SARS epidemic ended, 1)在本句中, 完成进行时。 而要用 不能用现在完成时, 还要进行下去时, 在强调指出动作还未结束, 现在完成进行时。 t finished it yet. but I haven������ ve been writing the composition for two hours, I������ 还要继续 强调动作没有结束, 但还没写完。( 这篇作文我写了两个小时, 写下去)
1. Epidemics can wipe out up to half of the population in urban areas. (Page 38) 流行病可以消灭居住在城市的多达一半的人口。 wipe out 彻底毁灭 They have wiped out the enemy������ s major military targets. 他们已彻底摧毁了敌人的主要军事目标。 The storm wiped the building out in two hours. 在两个小时内, 暴风雨把那座建筑物毁坏了。
⑤—I have got a headache. —No wonder. You A. work B. are working C. have been working D. worked 提示: 用现在完成进行时表示一直在进行, 有可能还会继续进行下去的 动作。 答案: C in front of that computer too long.
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。
北师大版高中英语选修七Unit21《HumanBiology》（warmup）word学案
北师大版高中英语选修七Unit21《HumanBiology》（warmup）word学案Unit21 warm up学习目标By the end of the class, the students will be able to: Learn some words about our body学习过程课堂活动（一）预习交流Do You Look After Yourself ? 1.How many hou rs do you sleep per night ?a) under 6 hours b) about 7 or 8 hours c) more than 9 hours2.How often do you clean your teeth ?a) once a day b) twice a day c) after every meal3.How often do you do physical exercise,enough to make you out of breath ?a) never b) once a week c) two or three time s a week 4.How often do you eat sweets or chocol ate?a) never b) sometimes c) every day5. How many pieces of fresh fruits do you eat per day ? a) One or two b) more than two c) none（二）合作探究 Read the words,then match the words with their Chinese meanings.Find six key words to label the parts of the body in the di agram.（三）分层提高Look at the following statements and decide which part of the body is described.This organ weighs about a kilo and is madeup of two sides. It is like a super computer thatprocesses information.This organ is like a bag whi ch reeives everything you eat.It digests you r foo dand sends vitamins and minerals intothe blood.This organ bea ts at regular intervals 100,000 interval digest swap hearing pulsen. 听觉 n.间隔；间歇 n. 脉搏 vt. 消化 vi. 交换times a day. With eac h 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.This is a very delicate organ. There aretwo in a body and they have delicatelids which protect them. Light enters and reaches special light sensitive cells. Thesework like a camera and finall y send signalsto the brain.These organs absorb oxygen and get rid of carbon dioxide. They are foundon either side of the heart. Theyreceive air as a result of breathingand when blood passes through,They give it oxygen.（四）总结归纳（五）巩固反馈WordsPreview lesson 1。
北师大版高中英语选修七第7讲：Unit21 Human Biology-词汇篇1(学生版)
Unit21 Human Biology-词汇篇1____________________________________________________________________________________________________________________________________________________________________1、掌握本单元warm-up及Lesson 1中的重点单词，短语及句型。
2、灵活运用本单元warm-up及Lesson 1中的重点单词，短语及句型。
一．重点单词与短语1. slow down减速，放慢速度You must slow down your car. 你必须把车子开慢。
Can we slow down and walk for a bit? 咱们放慢速度步行一会儿好吗?2.with prep.带有，携带1) 带有，携带The writer arrived with a cup of coffee.服务员端着一杯咖啡来了。
2)和……在一起，和，同Would you like to go to the theatre with us?你愿意和我们一起去看戏吗？3)指原因或理由His face was red with anger.他的脸气的通红。
e across 偶遇I came across an old school friend in Osford Street this moring.今天早上我在牛津街碰见了一位老校友。
短语拓展：come along跟随come off 举行，发生come through (重病后)康复4.tolerate vt.容忍; 忍受; 容许; 默许I can’t tolerate his bad manners any longer. 我再也不能容忍他无礼的行为。
She’s not a woman to tolerate being played with 她不是一个能容忍别人玩弄的女子辨析tolerate/stand/ bear易混词词义区别tolerate 容忍忍受与自己不同的行为或认识stand 容忍承受困难或不快，常用于否定句bear 容忍泛指忍神上或肉体上的各种磨难。
北师大版高中英语选修七Unit 21《Human Biology》(Lesson 1)课件1
Marion Jones马里昂· 琼斯
琼斯是格里菲斯· 乔伊娜之后的又一位称 雄世界田坛的女飞人，也是女子短跑项 目上最耀眼的明星，三次获得国际田联 最佳运动员和杰西· 欧文斯奖(97年、9n
Florence Griffith
1. Find the general idea of the text. 2. Try to find a topic for each paragraph. 3. How many sportsmen does the passage mention?
Lesson 1 Super Athletes
What do you think super athlete is in your heart? Tell some athletes who are super athletes in your heart.
Do you know the following athletes?
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. 2. What reasons made athletes’ performances improve? Better equipment, training and diet.