Unit 4 Life on Mars Reading II 课件(共34张PPT)
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| 名称 | Unit 4 Life on Mars Reading II 课件(共34张PPT) |  | |
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| 文件大小 | 1.4MB | ||
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| 科目 | 英语 | ||
| 更新时间 | 2020-05-01 10:53:52 | ||
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课件34张PPT。Unit 4 Life on Mars
Reading (Ⅱ)
1. By 2100, people can live on Mars.
2. Earth is becoming crowded and polluted.
3. People are not sure whether there would be
enough water of oxygen on Mars.
4. Mars has one-eighth the gravity of Earth.
5. People will have less space on Mars.
FTTFA: Read the facts and tell "T" or "F":Task 1 : Revisionmightthree-eighthsFmoreTask 1 : Revision
B: Answer the following questions about the life on Mars.Why will we leave our own planet Earth ?
How long does the spacecraft need to get to Mars at present ?
How long does the spacecraft need to get to Mars in the future ?
What would food on Mars be like?Because Earth is becoming more and more crowded and polluted.It takes months.About 20 minutes.Food would probably be in the form of pills and would not be so tasty.Task 1 : Revision
C: Fill in the blanks with proper words. Our own planet , the Earth , is becoming more and more ________ and _________. Hopefully, we can build a better world on _______ by the year 2100.
At present , our spacecraft are too slow to carry large numbers of ____________ to Mars. By 2100, the __________might take only 20 minutes in spacecraft that travel at the speed of light.
Food on Mars would probably be in the _______ of pills and would not be so ________ as that on the Earth.
Gravity could be another problem for people on Mars. The gravity on Mars is only about______________ of that on the Earth . People on Mars have to wear special________ to prevent themselves from__________off into the space.crowdedpollutedMarspassengersformjourneytastythree-eighthsbootsfloating Task 2 : Language points
Moving to Mars
Some people believe that humans could live on the planet Mars by the year 2100 . Our own planet, the Earth, is becoming more and more crowded and polluted because of the rapid increase in population. It is hoped that people could start all over again and build a better world on Mars. Here is what life there could be like.
At present, our spacecraft are too slow to carry large numbers of passengers to Mars -- it would take months. With the development of technology, by the year 2100, the journey might only take about 20 minutes in spacecraft that travel at the speed of light! However, the spacecraft would travel so fast that the journey to Mars might be quite uncomfortable. Many people would feel ill.
Task 2: Language points. 1.Our own planet, the Earth, is becoming more and more crowded and polluted.比较级 + and + 比较级 / more and more +原级
越来越年轻
越来越快
越来越细心
越来越好
younger and younger faster and faster more and more carefulbetter and better 2.crowded (adj.) -- 拥挤的
be crowded with 意为“充满，挤满”。
e.g. 房间里挤满了人。____________________________The room is crowded with people.crowd (n.) --人群 e.g. She lost her son in the crowd.polluted (adj.) -- 被污染的pollute (v.) -- pollution (n.)The ___________ on the earth is serious. Many places are very __________. We should stop __________ our planet.pollutionpollutedpolluting (1)—“Food Safety” problem is becoming _____ these days.
—I think so. The government must do something to deal
with it.
A．smaller and smaller
B．worse and worse
C．better and better
D．nicer and nicerBPractice: (2) With the development of modern industry,
there will be ______ living space for wild animals.
A．fewer and fewer
B．less and less
C．more and more
D．bigger and bigger B Task 2 : Language points
Some people believe that humans could live on the planet Mars by the year 2100 . Our own planet, the Earth, is becoming more and more crowded and polluted because of the rapid increase in population. It is hoped that people could start all over again and build a better world on Mars. Here is what life there could be like.
At present, our spacecraft are too slow to carry large numbers of passengers to Mars -- it would take months. With the development of technology, by the year 2100, the journey might only take about 20 minutes in spacecraft that travel at the speed of light! However, the spacecraft would travel so fast that the journey to Mars might be quite uncomfortable. Many people would feel ill.3. Here is what life could be like.
What is …like?e.g. 你爸爸是什么样的人？ ___________________________
你的家乡以前是什么样的？
______________________________________What's your father like?What was your hometown like in the past?注意：如果在从句中，要变换成陈述句语序。
没人知道世界一百年后会是什么样子.
________________________________________________Nobody knows what the world will be like in 100 years.Task 2 : Language points
Some people believe that humans could live on the planet Mars by the year 2100 . Our own planet, the Earth, is becoming more and more crowded and polluted because of the rapid increase in population. It is hoped that people could start all over again and build a better world on Mars. Here is what life there could be like.
At present, our spacecraft are too slow to carry large numbers of passengers to Mars -- it would take months. With the development of technology, by the year 2100, the journey might only take about 20 minutes in spacecraft that travel at the speed of light! However, the spacecraft would travel so fast that the journey to Mars might be quite uncomfortable. Many people would feel ill.4. At present, our spacecraft are too slow to carry large numbers of people to Mars.(1) ...too +adj.+ to do Sandy 太小了而不能去上学。Sandy is too young to go to school.... so ... that ...can’t ....Sandy is so young that she can’t go to school....not adj. +enough to do ...Sandy is not old enough to go to school.==large numbers of 许多，大量，修饰______名词.
e.g. Large numbers of birds fly to the south every winter.
5. large numbers of ... many辨析：the number of ……的数目
后常接可数名词复数，做主语时，谓语动词常用单数形式。(1)China has ______________ of people.
(2) _____________ of the population of China is 1.4 billion at present.
(3) _____________ my friends came to my birthday party yesterday.a (large) number The number A number of=可数eg.The number of tourists starts to tail off in October.
游客在十月份开始逐渐减少。Practice:
—The number of tourists _____ over 33 million this year.
—Yes. A large number of tourists _____ so far because of the new look of our city.
A．is; have come B．is; has come
C．are; has come D．are; have come
ATask 2 : Language points
Some people believe that humans could live on the planet Mars by the year 2100 . Our own planet, the Earth, is becoming more and more crowded and polluted because of the rapid increase in population. It is hoped that people could start all over again and build a better world on Mars. Here is what life there could be like.
At present, our spacecraft are too slow to carry large numbers of passengers to Mars -- it would take months. With the development of technology, by the year 2100, the journey might only take about 20 minutes in spacecraft that travel at the speed of light! However, the spacecraft would travel so fast that the journey to Mars might be quite uncomfortable. Many people would feel ill.Task 2 : Language points
Humans cannot survive without water oxygen or food. So far, nobody knows whether there would be enough water or oxygen on Mars for people there. Moreover, scientists are not sure whether plants could grow on Mars. Food would most probably be in the form of pills and would not be so tasty.
Gravity could be another problem. The gravity on Mars is only about three-eighths of that on the Earth. People would have to wear boots that are specially designed to prevent themselves from floating off into space.
Compared with life on the Earth, life on Mars would be better in some ways. People would have more space. They might living in houses with huge comfortable rooms. Also, robots would do most of their work so that they could have more time to relax.
6. in the form of… 以……的形式
form (n.) 形式
e.g. 他们仍以写信的方法保持联系。
They still ______________________________________ letters.keep in touch with each other in the form ofform (n.) 表格
e.g. If you want to join the club, fill in the form, please.form (v.) 形成
e.g. 这些岩石大约四百万年前就形成了。
The rocks ________________about 4 million years ago.were formed Moving to Mars
Humans cannot survive without water oxygen or food. So far, nobody knows whether there would be enough water or oxygen on Mars for people there. Moreover, scientists are not sure whether plants could grow on Mars. Food would most probably be in the form of pills and would not be so tasty.
Gravity could be another problem. The gravity on Mars is only about three-eighths of that on the Earth. People would have to wear boots that are specially designed to prevent themselves from floating off into space.
Compared with life on the Earth, life on Mars would be better in some ways. People would have more space. They might living in houses with huge comfortable rooms. Also, robots would do most of their work so that they could have more time to relax.
7. The gravity on Mars is only about three-eighths of that on Earth.
火星上的重力大约只有地球上的八分之三。
three-eighths------八分之三
英语中分数的表达法：分子用______，分母用________；分子大于1时，分母变为______形式；
分子与分母之间可加连字符，也可不加。
1/3 one third 2/5 two-fifths基数词序数词复数[拓展] 分数后面常跟of 短语，作主语时，谓语动词的单复数和of 后面名词的单复数保持一致。
Three-fourths of the land is covered by forests in that country.
那个国家四分之三的土地被森林覆盖着。
翻译句子:
我们班五分之三是女生。
____________ the students in my class ______ girls.
Three-fifths ofare Practice:
1).About ______ of the students are from foreign countries.
A. three four
B. three fourth
C. third fourth
D. three fourthsD2)—What do you think of the environment here, Mr Wang?
—Wonderful! ________ of the land ________ covered with
trees and grass.
A. Two fifths; is
B. Two fifth; is
C. Two fifths; are
D. Two fifth; are A3) . —Mum, ____ of my classmates _____ glasses.
—Oh, my God. You need to protect your eyes well.
A．three-fourths; wears
B．three-fourth; wear
C．three-fourth; wears
D．three-fourths; wear D Task 2 : Language points
Humans cannot survive without water oxygen or food. So far, nobody knows whether there would be enough water or oxygen on Mars for people there. Moreover, scientists are not sure whether plants could grow on Mars. Food would most probably be in the form of pills and would not be so tasty.
Gravity could be another problem. The gravity on Mars is only about three-eighths of that on the Earth. People would have to wear boots that are specially designed to prevent themselves from floating off into space.
Compared with life on the Earth, life on Mars would be better in some ways. People would have more space. They might living in houses with huge comfortable rooms. Also, robots would do most of their work so that they could have more time to relax.
8. prevent sb (from) doing sth意为“______________”，
= stop sb (from) doing sth和keep sb from doing sth同义。
(其中keep sb from doing sth 的from不可省略，省略后，其意义发生变化。)
即：keep sb doing sth意为“_______________”
e.g. The heavy rain prevented/stopped/kept him from__________ (come)to school on time. 这场大雨使他没能按时到校。
I'm sorry to keep you ________（wait） for a long time.
我很抱歉让你等了很长时间。阻止某人做某事让某人一直做某事waitingcomingTask 2 : Language points
Humans cannot survive without water oxygen or food. So far, nobody knows whether there would be enough water or oxygen on Mars for people there. Moreover, scientists are not sure whether plants could grow on Mars. Food would most probably be in the form of pills and would not be so tasty.
Gravity could be another problem. The gravity on Mars is only about three-eighths of that on the Earth. People would have to wear boots that are specially designed to prevent themselves from floating off into space.
Compared with life on the Earth, life on Mars would be better in some ways. People would have more space. They might living in houses with huge comfortable rooms. Also, robots would do most of their work so that they could have more time to relax.
8. Compared with life on Earth, life on Mars would be better in some ways.
与在地球上的生活相比, 火星上的生活在某些方面要好些。
compare with … “ 与……做比较”。在句中是过去分词短语作状语.
When you________ yourself with others, you miss the wonder of
who you are.
A.compare B. communicate
C.contact D.connect
Ae.g.
Compared with the train's six days, the plane covered the distance in 28 hours.More exercises:
1. 小汽车正以每小时100公里的速度行驶。
The car ________________________________ 100 kilometres per hour.
2. 火星上的空气要比地球上的稀薄很多。
The air on Mars _______________________________ on the Earth.
3. 多做运动可以防止你发胖。
Doing more exercise can ____________________________________.
4. 由于私家车的迅速增加，交通拥堵越来越严重。
Traffic jams are becoming _____________________ because of
________________ private cars.
5. 那座城市有近五分之二的地区是以自然保护区的形式受到保护的。
Almost __________the city ________________________nature reserves.
6. 与地球上的生活相比，火星生活对于我更有吸引力。
_____________ life on Earth, life on Mars is _________________ to me.is travelling at the speed ofis much thinner than thatprevent/stop/keep you from getting fatworse and worsethe rapid inrease intwo-fifths ofis protected in the form ofCompared withmore attractiveThinking about life on Mars ☆ Not crowded/polluted
☆ Have more space
☆ Robots will do our work.
☆ Students will study at
home.
…◇ Low gravity
◇ Food doesn't taste good
◇ Travel will make
people feel sick.
◇ Have to wear heavy boots
…AdvantagesDisadvantagesTask 3 : Thinking Students would study at online schools with “e-teachers”.Is this an advantage or a disadvantage?Report
Homework:
1. Finish the report.
2. Review the language points.
THANK YOU FOR LISTENING
Reading (Ⅱ)
1. By 2100, people can live on Mars.
2. Earth is becoming crowded and polluted.
3. People are not sure whether there would be
enough water of oxygen on Mars.
4. Mars has one-eighth the gravity of Earth.
5. People will have less space on Mars.
FTTFA: Read the facts and tell "T" or "F":Task 1 : Revisionmightthree-eighthsFmoreTask 1 : Revision
B: Answer the following questions about the life on Mars.Why will we leave our own planet Earth ?
How long does the spacecraft need to get to Mars at present ?
How long does the spacecraft need to get to Mars in the future ?
What would food on Mars be like?Because Earth is becoming more and more crowded and polluted.It takes months.About 20 minutes.Food would probably be in the form of pills and would not be so tasty.Task 1 : Revision
C: Fill in the blanks with proper words. Our own planet , the Earth , is becoming more and more ________ and _________. Hopefully, we can build a better world on _______ by the year 2100.
At present , our spacecraft are too slow to carry large numbers of ____________ to Mars. By 2100, the __________might take only 20 minutes in spacecraft that travel at the speed of light.
Food on Mars would probably be in the _______ of pills and would not be so ________ as that on the Earth.
Gravity could be another problem for people on Mars. The gravity on Mars is only about______________ of that on the Earth . People on Mars have to wear special________ to prevent themselves from__________off into the space.crowdedpollutedMarspassengersformjourneytastythree-eighthsbootsfloating Task 2 : Language points
Moving to Mars
Some people believe that humans could live on the planet Mars by the year 2100 . Our own planet, the Earth, is becoming more and more crowded and polluted because of the rapid increase in population. It is hoped that people could start all over again and build a better world on Mars. Here is what life there could be like.
At present, our spacecraft are too slow to carry large numbers of passengers to Mars -- it would take months. With the development of technology, by the year 2100, the journey might only take about 20 minutes in spacecraft that travel at the speed of light! However, the spacecraft would travel so fast that the journey to Mars might be quite uncomfortable. Many people would feel ill.
Task 2: Language points. 1.Our own planet, the Earth, is becoming more and more crowded and polluted.比较级 + and + 比较级 / more and more +原级
越来越年轻
越来越快
越来越细心
越来越好
younger and younger faster and faster more and more carefulbetter and better 2.crowded (adj.) -- 拥挤的
be crowded with 意为“充满，挤满”。
e.g. 房间里挤满了人。____________________________The room is crowded with people.crowd (n.) --人群 e.g. She lost her son in the crowd.polluted (adj.) -- 被污染的pollute (v.) -- pollution (n.)The ___________ on the earth is serious. Many places are very __________. We should stop __________ our planet.pollutionpollutedpolluting (1)—“Food Safety” problem is becoming _____ these days.
—I think so. The government must do something to deal
with it.
A．smaller and smaller
B．worse and worse
C．better and better
D．nicer and nicerBPractice: (2) With the development of modern industry,
there will be ______ living space for wild animals.
A．fewer and fewer
B．less and less
C．more and more
D．bigger and bigger B Task 2 : Language points
Some people believe that humans could live on the planet Mars by the year 2100 . Our own planet, the Earth, is becoming more and more crowded and polluted because of the rapid increase in population. It is hoped that people could start all over again and build a better world on Mars. Here is what life there could be like.
At present, our spacecraft are too slow to carry large numbers of passengers to Mars -- it would take months. With the development of technology, by the year 2100, the journey might only take about 20 minutes in spacecraft that travel at the speed of light! However, the spacecraft would travel so fast that the journey to Mars might be quite uncomfortable. Many people would feel ill.3. Here is what life could be like.
What is …like?e.g. 你爸爸是什么样的人？ ___________________________
你的家乡以前是什么样的？
______________________________________What's your father like?What was your hometown like in the past?注意：如果在从句中，要变换成陈述句语序。
没人知道世界一百年后会是什么样子.
________________________________________________Nobody knows what the world will be like in 100 years.Task 2 : Language points
Some people believe that humans could live on the planet Mars by the year 2100 . Our own planet, the Earth, is becoming more and more crowded and polluted because of the rapid increase in population. It is hoped that people could start all over again and build a better world on Mars. Here is what life there could be like.
At present, our spacecraft are too slow to carry large numbers of passengers to Mars -- it would take months. With the development of technology, by the year 2100, the journey might only take about 20 minutes in spacecraft that travel at the speed of light! However, the spacecraft would travel so fast that the journey to Mars might be quite uncomfortable. Many people would feel ill.4. At present, our spacecraft are too slow to carry large numbers of people to Mars.(1) ...too +adj.+ to do Sandy 太小了而不能去上学。Sandy is too young to go to school.... so ... that ...can’t ....Sandy is so young that she can’t go to school....not adj. +enough to do ...Sandy is not old enough to go to school.==large numbers of 许多，大量，修饰______名词.
e.g. Large numbers of birds fly to the south every winter.
5. large numbers of ... many辨析：the number of ……的数目
后常接可数名词复数，做主语时，谓语动词常用单数形式。(1)China has ______________ of people.
(2) _____________ of the population of China is 1.4 billion at present.
(3) _____________ my friends came to my birthday party yesterday.a (large) number The number A number of=可数eg.The number of tourists starts to tail off in October.
游客在十月份开始逐渐减少。Practice:
—The number of tourists _____ over 33 million this year.
—Yes. A large number of tourists _____ so far because of the new look of our city.
A．is; have come B．is; has come
C．are; has come D．are; have come
ATask 2 : Language points
Some people believe that humans could live on the planet Mars by the year 2100 . Our own planet, the Earth, is becoming more and more crowded and polluted because of the rapid increase in population. It is hoped that people could start all over again and build a better world on Mars. Here is what life there could be like.
At present, our spacecraft are too slow to carry large numbers of passengers to Mars -- it would take months. With the development of technology, by the year 2100, the journey might only take about 20 minutes in spacecraft that travel at the speed of light! However, the spacecraft would travel so fast that the journey to Mars might be quite uncomfortable. Many people would feel ill.Task 2 : Language points
Humans cannot survive without water oxygen or food. So far, nobody knows whether there would be enough water or oxygen on Mars for people there. Moreover, scientists are not sure whether plants could grow on Mars. Food would most probably be in the form of pills and would not be so tasty.
Gravity could be another problem. The gravity on Mars is only about three-eighths of that on the Earth. People would have to wear boots that are specially designed to prevent themselves from floating off into space.
Compared with life on the Earth, life on Mars would be better in some ways. People would have more space. They might living in houses with huge comfortable rooms. Also, robots would do most of their work so that they could have more time to relax.
6. in the form of… 以……的形式
form (n.) 形式
e.g. 他们仍以写信的方法保持联系。
They still ______________________________________ letters.keep in touch with each other in the form ofform (n.) 表格
e.g. If you want to join the club, fill in the form, please.form (v.) 形成
e.g. 这些岩石大约四百万年前就形成了。
The rocks ________________about 4 million years ago.were formed Moving to Mars
Humans cannot survive without water oxygen or food. So far, nobody knows whether there would be enough water or oxygen on Mars for people there. Moreover, scientists are not sure whether plants could grow on Mars. Food would most probably be in the form of pills and would not be so tasty.
Gravity could be another problem. The gravity on Mars is only about three-eighths of that on the Earth. People would have to wear boots that are specially designed to prevent themselves from floating off into space.
Compared with life on the Earth, life on Mars would be better in some ways. People would have more space. They might living in houses with huge comfortable rooms. Also, robots would do most of their work so that they could have more time to relax.
7. The gravity on Mars is only about three-eighths of that on Earth.
火星上的重力大约只有地球上的八分之三。
three-eighths------八分之三
英语中分数的表达法：分子用______，分母用________；分子大于1时，分母变为______形式；
分子与分母之间可加连字符，也可不加。
1/3 one third 2/5 two-fifths基数词序数词复数[拓展] 分数后面常跟of 短语，作主语时，谓语动词的单复数和of 后面名词的单复数保持一致。
Three-fourths of the land is covered by forests in that country.
那个国家四分之三的土地被森林覆盖着。
翻译句子:
我们班五分之三是女生。
____________ the students in my class ______ girls.
Three-fifths ofare Practice:
1).About ______ of the students are from foreign countries.
A. three four
B. three fourth
C. third fourth
D. three fourthsD2)—What do you think of the environment here, Mr Wang?
—Wonderful! ________ of the land ________ covered with
trees and grass.
A. Two fifths; is
B. Two fifth; is
C. Two fifths; are
D. Two fifth; are A3) . —Mum, ____ of my classmates _____ glasses.
—Oh, my God. You need to protect your eyes well.
A．three-fourths; wears
B．three-fourth; wear
C．three-fourth; wears
D．three-fourths; wear D Task 2 : Language points
Humans cannot survive without water oxygen or food. So far, nobody knows whether there would be enough water or oxygen on Mars for people there. Moreover, scientists are not sure whether plants could grow on Mars. Food would most probably be in the form of pills and would not be so tasty.
Gravity could be another problem. The gravity on Mars is only about three-eighths of that on the Earth. People would have to wear boots that are specially designed to prevent themselves from floating off into space.
Compared with life on the Earth, life on Mars would be better in some ways. People would have more space. They might living in houses with huge comfortable rooms. Also, robots would do most of their work so that they could have more time to relax.
8. prevent sb (from) doing sth意为“______________”，
= stop sb (from) doing sth和keep sb from doing sth同义。
(其中keep sb from doing sth 的from不可省略，省略后，其意义发生变化。)
即：keep sb doing sth意为“_______________”
e.g. The heavy rain prevented/stopped/kept him from__________ (come)to school on time. 这场大雨使他没能按时到校。
I'm sorry to keep you ________（wait） for a long time.
我很抱歉让你等了很长时间。阻止某人做某事让某人一直做某事waitingcomingTask 2 : Language points
Humans cannot survive without water oxygen or food. So far, nobody knows whether there would be enough water or oxygen on Mars for people there. Moreover, scientists are not sure whether plants could grow on Mars. Food would most probably be in the form of pills and would not be so tasty.
Gravity could be another problem. The gravity on Mars is only about three-eighths of that on the Earth. People would have to wear boots that are specially designed to prevent themselves from floating off into space.
Compared with life on the Earth, life on Mars would be better in some ways. People would have more space. They might living in houses with huge comfortable rooms. Also, robots would do most of their work so that they could have more time to relax.
8. Compared with life on Earth, life on Mars would be better in some ways.
与在地球上的生活相比, 火星上的生活在某些方面要好些。
compare with … “ 与……做比较”。在句中是过去分词短语作状语.
When you________ yourself with others, you miss the wonder of
who you are.
A.compare B. communicate
C.contact D.connect
Ae.g.
Compared with the train's six days, the plane covered the distance in 28 hours.More exercises:
1. 小汽车正以每小时100公里的速度行驶。
The car ________________________________ 100 kilometres per hour.
2. 火星上的空气要比地球上的稀薄很多。
The air on Mars _______________________________ on the Earth.
3. 多做运动可以防止你发胖。
Doing more exercise can ____________________________________.
4. 由于私家车的迅速增加，交通拥堵越来越严重。
Traffic jams are becoming _____________________ because of
________________ private cars.
5. 那座城市有近五分之二的地区是以自然保护区的形式受到保护的。
Almost __________the city ________________________nature reserves.
6. 与地球上的生活相比，火星生活对于我更有吸引力。
_____________ life on Earth, life on Mars is _________________ to me.is travelling at the speed ofis much thinner than thatprevent/stop/keep you from getting fatworse and worsethe rapid inrease intwo-fifths ofis protected in the form ofCompared withmore attractiveThinking about life on Mars ☆ Not crowded/polluted
☆ Have more space
☆ Robots will do our work.
☆ Students will study at
home.
…◇ Low gravity
◇ Food doesn't taste good
◇ Travel will make
people feel sick.
◇ Have to wear heavy boots
…AdvantagesDisadvantagesTask 3 : Thinking Students would study at online schools with “e-teachers”.Is this an advantage or a disadvantage?Report
Homework:
1. Finish the report.
2. Review the language points.
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