英语高二下北师大版Unit20《New Frontiers》(Lesson 3)课件3
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| 名称 | 英语高二下北师大版Unit20《New Frontiers》(Lesson 3)课件3 |  | |
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| 科目 | 英语 | ||
| 更新时间 | 2013-03-29 15:20:11 | ||
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课件40张PPT。 Unit 20
Lesson 3
Scientific Breakthroughs
1.Learn the new words of lesson 3
2.Reading
3.Language points
4.Vocabulary:Phrasal verbs
5.Vocabulary:Compound words
6.Exercises
7.HomeworkTeaching processLearn the new wordsreadingDiscuss the major
discoveries of the
scientists in the pictures:"It followed from the special theory of relativity that mass and energy are both but different manifestations of the same thing -- a somewhat unfamiliar conception for the average mind. Furthermore, the equation E is equal to m c-squared, in which energy is put equal to mass, multiplied by the square of the velocity of light, showed that very small amounts of mass may be converted into a very large amount of energy and vice versa. The mass and energy were in fact equivalent, according to the formula mentioned above. This was demonstrated by Cockcroft and Walton in 1932, experimentally."
听爱因斯坦讲解质能方程哈勃太空望远镜 哈勃望远镜长13.3米，直径4.3米，重11.6吨，造价近30亿美元，于1990年4月25日由美国航天飞机送上高590千米的太空轨道。哈勃望远镜以时速2.8万千米沿寂静的太空轨道运行，默默地窥探着太空的秘密。
哈勃望远镜是有史以来最大、最精确的天文望远镜。它上面的广角行星相机可拍摄到几十到上百个恒星照片，其清晰度是地面天文望远镜的10倍以上，其观测能力等于从华盛顿看到1.6万千米外悉尼的一只萤火虫哈勃太空望远镜经典图片侧视的星系太空“蚂蚁”太空中的宝石猫眼星云惊恐的“双眼”完全曝光土星环星系之心棒旋星云公元1881～公元1955
青霉素的发明者亚历山大·弗莱明于1881年出生在苏格兰的洛克菲尔德。弗莱明从伦敦圣马利亚医院医科学校毕业后，从事免疫学研究；后来在第一次世界大战中作为一名军医，研究伤口感染。他注意到许多防腐剂对人体细胞的伤害甚于对细菌的伤害，他认识到需要某种有害于细菌而无害于人体细胞的物质。
1928年弗莱明做出了他的伟大发现。在他的实验室里，有一个葡萄球菌培养基暴露在空气之中，受到了一种霉的污染。弗莱明注意到恰好在培养基中霉周围区域里的细菌消失了，他正确地断定这种霉在生产某种对葡萄球菌有害的物质。不久他就证明了这种物质能抑制许多其它有害细菌的生长。这种物质──他根据其生产者霉的名称（青霉菌）将其命名为青霉素──对人或动物都无毒作用
弗莱明的结果发表于1929年，但是起初并未引起高度的重视。弗莱明指出青霉素将会有重要的用途，但是他自己无法发明一种提纯青霉素的技术，致使这种灵丹妙药十几年一直未得以使用。
终于在二十世纪三十年代末期，两位英国医学研究人员霍德华·瓦尔特·弗洛里和厄恩斯特·鲍里斯·钱恩偶然读到了弗莱明的文章。他俩重复了他的工作，证实了他的结果。然后他俩提纯青霉素，给实验室动物加以试用；1941年给病人试用。他俩的试验清楚地表明了这种新药具有惊人的效力。
1946年，在美国宾夕法尼亚大学研制成功世界上第一台程序控制的电子计算机ENIAC。它被用于新式武器弹道问题中许多复杂的计算。ENIAC是一个庞然大物，由18000个电子管、1500多个继电器和其它配件构成，上地170平方米，重达30吨；耗电150千瓦，每秒钟能运行5000次加法。这台计算机的使用条件也很苛刻，要求恒温、恒湿，为此还配备了一台30吨重的冷却设备。尽管如此，过去需要100多名工程师花费一年才能解决的问题，ENIAC只需两小时便能求出答案。 人类飞上天空的梦想在1903年由莱特兄弟首次实现，人类终于冲出了大地母亲的怀抱Language points1.think over v.仔细考虑, 重新考虑
2.be aware of v.知道, 意识到
eg: Everybody is aware of the importance of study.
每个人都意识到了学习的重要性。
I was not aware of the fire.
我没有意识到火。
3.such as adv.例如...,象这种的, 诸如..., 譬如说; 象...那样的; 如此...以致
4.a piece of mass 5.an amount of adj.许多, 相当数量的; 一些
6.theory of relativity
7.for example
8.at the speed of以...的速度
at a speed of eighty miles an hour 以每小时80英里的速度
at full[top] speed 用全速, 开足马力尽力地; 尽快地
9.be about to v.将要, 正打算
eg: The chorus is about to sing.
合唱团就要开始唱了 10.in fact
11.away from远离
12.the further away galaxies are, the faster they move.
The more…the more….
13.go on holiday正在休假[去休假]
14.come back v.回来, 在记忆中重现, 复原, 恢复, 反驳
15.throw… away v.扔掉, 丢弃
16.out of the ordinary不平常的, 非凡的,例外的
17.a few years later
18.look for
19.so…that…
20.turn on v.开启, 变得兴奋, 突然装出, 开始
21.go out v.出去, 熄灭, 过时, 罢工, 向往, 辞职, 倒塌
22.be interested in对...感兴趣
23.at the time当时, 在那个时候
24.make the first flight
25.make great contributions to…贡献 Vocabulary
Phrasal verbsRead and then match these verbs with those
in bold in the text. take over walked out
get across give away
get on fine is to do with
makes up for came out
figure out got a lot out ofExercise 7 The woman(1)enjoyed the film, even thought it(2)was shown a long time ago. She explains that when it was first shown, some people couldn’t(3)understand what it was about and (4)left. In her opinion, the director (5)compensates for the lack of plot by using visual effects and uses music to(6)communicate the mood of the film. The woman talks about the plot of the film but she does not(7) tell us the ending. Among other things, the film(8)is about intelligent machines. In the story, some astronauts and a computer(9)have a good
relationship, but then the computer tries to (10)take control.take over
walked out
get across
give away
get on fine
is to do with
makes up for
came out
figure out
got a lot out of take control
left
communicate
tell us
have a good relationship
is about
compensates for
was shown
understand
enjoyedExercise 8
complete the sentences with the phrasal
verbs in exercise 7: 1.We must the simple fact that drugs are
dangerous.
2.I couldn’t what I had done to annoy my boss.
3.I don’t really believe that their conversation
yesterday work.
4.It is reported that the millionaire has decided to
all his money to charities.
5.The team will be anxious to a
disappointing start to the season.Exercise 8 complete the sentences with the
phrasal verbs in exercise 7: 6.It that some government officials
received payments from the company.
7.His only reason for investing in the company
was to it .
8.Children can being involved in
community projects.
9.Furious by now,I , leaving him
sitting there shocked and white-faced.
10.How I wish I could with my
colleagues in the company!Vocabulary
Compound wordsa)compound noun(noun+noun):
CD player;jet engine
b)compound noun(verb+prep.):
breakthrough;outcome
c)compound noun(adj.+noun):
flying machine; nuclear bomb
d)compound verb:
mass-produce;double-check
e)compound adjective:
one-year-old;world-famous; far-reachingExercise 5exercisesExercise 5 in page 69
Complete the sentences with these words:Answers:
1.off 2.up, over 3.up
4.out, out of 5.out, out 6.overExercise 6 in page 69
Complete the compound words in these sentences:Answers:
1.system,years 2.check 3.like
4.produced 5.breaking
6.consuming,through,intelligence
7.born,year-old 8.-hand, processingHomework:
Exercise 2 in page 70 Thanks for
your attendance
Lesson 3
Scientific Breakthroughs
1.Learn the new words of lesson 3
2.Reading
3.Language points
4.Vocabulary:Phrasal verbs
5.Vocabulary:Compound words
6.Exercises
7.HomeworkTeaching processLearn the new wordsreadingDiscuss the major
discoveries of the
scientists in the pictures:"It followed from the special theory of relativity that mass and energy are both but different manifestations of the same thing -- a somewhat unfamiliar conception for the average mind. Furthermore, the equation E is equal to m c-squared, in which energy is put equal to mass, multiplied by the square of the velocity of light, showed that very small amounts of mass may be converted into a very large amount of energy and vice versa. The mass and energy were in fact equivalent, according to the formula mentioned above. This was demonstrated by Cockcroft and Walton in 1932, experimentally."
听爱因斯坦讲解质能方程哈勃太空望远镜 哈勃望远镜长13.3米，直径4.3米，重11.6吨，造价近30亿美元，于1990年4月25日由美国航天飞机送上高590千米的太空轨道。哈勃望远镜以时速2.8万千米沿寂静的太空轨道运行，默默地窥探着太空的秘密。
哈勃望远镜是有史以来最大、最精确的天文望远镜。它上面的广角行星相机可拍摄到几十到上百个恒星照片，其清晰度是地面天文望远镜的10倍以上，其观测能力等于从华盛顿看到1.6万千米外悉尼的一只萤火虫哈勃太空望远镜经典图片侧视的星系太空“蚂蚁”太空中的宝石猫眼星云惊恐的“双眼”完全曝光土星环星系之心棒旋星云公元1881～公元1955
青霉素的发明者亚历山大·弗莱明于1881年出生在苏格兰的洛克菲尔德。弗莱明从伦敦圣马利亚医院医科学校毕业后，从事免疫学研究；后来在第一次世界大战中作为一名军医，研究伤口感染。他注意到许多防腐剂对人体细胞的伤害甚于对细菌的伤害，他认识到需要某种有害于细菌而无害于人体细胞的物质。
1928年弗莱明做出了他的伟大发现。在他的实验室里，有一个葡萄球菌培养基暴露在空气之中，受到了一种霉的污染。弗莱明注意到恰好在培养基中霉周围区域里的细菌消失了，他正确地断定这种霉在生产某种对葡萄球菌有害的物质。不久他就证明了这种物质能抑制许多其它有害细菌的生长。这种物质──他根据其生产者霉的名称（青霉菌）将其命名为青霉素──对人或动物都无毒作用
弗莱明的结果发表于1929年，但是起初并未引起高度的重视。弗莱明指出青霉素将会有重要的用途，但是他自己无法发明一种提纯青霉素的技术，致使这种灵丹妙药十几年一直未得以使用。
终于在二十世纪三十年代末期，两位英国医学研究人员霍德华·瓦尔特·弗洛里和厄恩斯特·鲍里斯·钱恩偶然读到了弗莱明的文章。他俩重复了他的工作，证实了他的结果。然后他俩提纯青霉素，给实验室动物加以试用；1941年给病人试用。他俩的试验清楚地表明了这种新药具有惊人的效力。
1946年，在美国宾夕法尼亚大学研制成功世界上第一台程序控制的电子计算机ENIAC。它被用于新式武器弹道问题中许多复杂的计算。ENIAC是一个庞然大物，由18000个电子管、1500多个继电器和其它配件构成，上地170平方米，重达30吨；耗电150千瓦，每秒钟能运行5000次加法。这台计算机的使用条件也很苛刻，要求恒温、恒湿，为此还配备了一台30吨重的冷却设备。尽管如此，过去需要100多名工程师花费一年才能解决的问题，ENIAC只需两小时便能求出答案。 人类飞上天空的梦想在1903年由莱特兄弟首次实现，人类终于冲出了大地母亲的怀抱Language points1.think over v.仔细考虑, 重新考虑
2.be aware of v.知道, 意识到
eg: Everybody is aware of the importance of study.
每个人都意识到了学习的重要性。
I was not aware of the fire.
我没有意识到火。
3.such as adv.例如...,象这种的, 诸如..., 譬如说; 象...那样的; 如此...以致
4.a piece of mass 5.an amount of adj.许多, 相当数量的; 一些
6.theory of relativity
7.for example
8.at the speed of以...的速度
at a speed of eighty miles an hour 以每小时80英里的速度
at full[top] speed 用全速, 开足马力尽力地; 尽快地
9.be about to v.将要, 正打算
eg: The chorus is about to sing.
合唱团就要开始唱了 10.in fact
11.away from远离
12.the further away galaxies are, the faster they move.
The more…the more….
13.go on holiday正在休假[去休假]
14.come back v.回来, 在记忆中重现, 复原, 恢复, 反驳
15.throw… away v.扔掉, 丢弃
16.out of the ordinary不平常的, 非凡的,例外的
17.a few years later
18.look for
19.so…that…
20.turn on v.开启, 变得兴奋, 突然装出, 开始
21.go out v.出去, 熄灭, 过时, 罢工, 向往, 辞职, 倒塌
22.be interested in对...感兴趣
23.at the time当时, 在那个时候
24.make the first flight
25.make great contributions to…贡献 Vocabulary
Phrasal verbsRead and then match these verbs with those
in bold in the text. take over walked out
get across give away
get on fine is to do with
makes up for came out
figure out got a lot out ofExercise 7 The woman(1)enjoyed the film, even thought it(2)was shown a long time ago. She explains that when it was first shown, some people couldn’t(3)understand what it was about and (4)left. In her opinion, the director (5)compensates for the lack of plot by using visual effects and uses music to(6)communicate the mood of the film. The woman talks about the plot of the film but she does not(7) tell us the ending. Among other things, the film(8)is about intelligent machines. In the story, some astronauts and a computer(9)have a good
relationship, but then the computer tries to (10)take control.take over
walked out
get across
give away
get on fine
is to do with
makes up for
came out
figure out
got a lot out of take control
left
communicate
tell us
have a good relationship
is about
compensates for
was shown
understand
enjoyedExercise 8
complete the sentences with the phrasal
verbs in exercise 7: 1.We must the simple fact that drugs are
dangerous.
2.I couldn’t what I had done to annoy my boss.
3.I don’t really believe that their conversation
yesterday work.
4.It is reported that the millionaire has decided to
all his money to charities.
5.The team will be anxious to a
disappointing start to the season.Exercise 8 complete the sentences with the
phrasal verbs in exercise 7: 6.It that some government officials
received payments from the company.
7.His only reason for investing in the company
was to it .
8.Children can being involved in
community projects.
9.Furious by now,I , leaving him
sitting there shocked and white-faced.
10.How I wish I could with my
colleagues in the company!Vocabulary
Compound wordsa)compound noun(noun+noun):
CD player;jet engine
b)compound noun(verb+prep.):
breakthrough;outcome
c)compound noun(adj.+noun):
flying machine; nuclear bomb
d)compound verb:
mass-produce;double-check
e)compound adjective:
one-year-old;world-famous; far-reachingExercise 5exercisesExercise 5 in page 69
Complete the sentences with these words:Answers:
1.off 2.up, over 3.up
4.out, out of 5.out, out 6.overExercise 6 in page 69
Complete the compound words in these sentences:Answers:
1.system,years 2.check 3.like
4.produced 5.breaking
6.consuming,through,intelligence
7.born,year-old 8.-hand, processingHomework:
Exercise 2 in page 70 Thanks for
your attendance