牛津译林版九年级英语下册Unit 4 Life on Mars第3课时示范课教学课件
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Three fifths of
are
One third of
is
Post-reading
4. At present, our spacecraft are too slow to carry large numbers of passengers to Mars—it would take months.
Fill in the blanks with proper words
rowded
olluted
apidly
ars
pacecraft
assengers
xygen
loating
ompared
hallenging
Pre-reading
The Earth is becoming more and more crowded and polluted because of the rapid increase in population.
Compared with life on the Earth, people would have more space.
Robots would do most of their work so that they could have more time to relax.
Every student would have a computer connected to an interplanetary network.
Food
Gravity
Houses
Free time
Schools
______________________________ ______________________________ ______________________________ ______________________________ ______________________________
Sandy is not old enough to go to school.
Post-reading
5. Every student would have a computer at home connected to an interplanetary network.
connect … to … 意为“把……连接在……上，……与……连在一起” 。此处connected to an interplanetary network是过去分词短语，作后置定语修饰名词computer。computer与connect是动宾关系，故动词用过去分词形式。如果被修饰的名词与动词之间是主谓关系，则用该动词的现在分词形式。e.g. 连接上海和天津的铁路正在建设中。 ___________________________________________________________
2. 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!
should (must/had better/can)
shouldn’t (mustn’t/had betternot/can’t/don’t)
Post-reading
What should we do or shouldn’t we do to protect the Earth?
Group work
2. How long does the spacecraft need to get to Mars at present? Why?
While-reading
Every student would have a computer at home connected to an interplanetary network.
too … to … 意为“太……而不能…… ”，注意和 … so … that ... can’t ...,... adj. + enough to do ... 的句型转换。
e.g. Sandy太小了而不能去上学。
Sandy is too young to go to school.
Sandy is so young that she can’t go to school.
6. Life on Mars would be interesting as well as challenging.
他们既参观了动物园，又参观了博物馆。
他和他的朋友们都喜欢购物。
Let’s discuss
Post-reading
1. Do you think it’s true that we can live on Mars?2. What advantages and disadvantages are there on Mars?3. If we live on Mars, what should we do?4. Could humans survive on Mars without water, oxygen or food?
While-reading
ቤተ መጻሕፍቲ ባይዱ
Life on Mars
Analyze life on Mars
Food would most probably in the form of pills and would not be so tasty.
The gravity on Mars is only about three-eighths of that on the Earth.
3. Where would we study on Mars?
By the year 2100, the journey might only take about 20 minutes in spacecraft that travel at the speed of light.
4. How long does the spacecraft need to get to Mars in the future?
more and more 用来加强程度，意为“越来越……”。
e.g. 越来越年轻 越来越快 越来越好 越来越细心 越来越舒服
younger and younger
faster and faster
better and better
more and more careful
The railway connecting Shanghai to Tianjin is under construction now.
Post-reading
as well as 意为“不但……而且，既……又”。注意这一短语在翻译成中文时，应先as well as 后面的内容，再翻译前面的。e.g. They visited the museum as well as the zoo. ______________________________________________ He as well as his friends likes going shopping. ______________________________________________
That night he drove the car at the speed of 200 kilometres per hour.
The cars are driving at high speed.
Post-reading
3. The gravity on Mars is only about three-eighths of that on the Earth. three-eighths 意为“八分之三 ”。 分数表达法：分子用基数词，分母用序数词，如果分子大于1，分母要用复 数形式。注意：分数做主语，谓语动词的单复数由名词决定。二分之一通常 用a half来表示，而四分之一通常用a quarter, 也可用a fourth，四分之三通常 用three quarters或three fourths来表示。 e.g. 我们班五分之三是女生。 _____________ the students in my class _______ girls. 三分之一的水是脏的。 _____________ the water _____ dirty.
Unit 4 Life on MarsReading (II)
Why do people want to move to Mars?
Warming-up
Think and say
The Earth is becoming more and more c_________ and p__________ because the population is increasing r__________. Some people would like to move to M______. They think by the year 2100 our s___________ could carry large numbers of p___________.However, there could be many problems. For example, could humans survive without water, o________ or food? How would people prevent themselves from f________ off in space? Would there be schools on Mars? Anyway, c_________ with life on the earth, life on Mars would be interesting as well as c____________.
Post-reading
Learn the language points
1. Our own planet, the Earth, is becoming more and more crowded and polluted because of the rapid increase in population.
1. Why will we leave our own planet the Earth?
Read and answer
While-reading
It takes months. Because our spacecraft are too slow to carry large numbers of people to Mars at present.
more and more comfortable
Post-reading
at the speed of 意为“以……速度”。类似的短语：at the price of 意为“以……的价格”。at a high price意为“高价”。at a low cost意为“低成本”。at full/high speed意为“全速/高速”。e.g. 那天晚上他以每小时200千米的速度驾驶。 _________________________________________________________ 汽车正高速行驶。 _________________________________________________________
are
One third of
is
Post-reading
4. At present, our spacecraft are too slow to carry large numbers of passengers to Mars—it would take months.
Fill in the blanks with proper words
rowded
olluted
apidly
ars
pacecraft
assengers
xygen
loating
ompared
hallenging
Pre-reading
The Earth is becoming more and more crowded and polluted because of the rapid increase in population.
Compared with life on the Earth, people would have more space.
Robots would do most of their work so that they could have more time to relax.
Every student would have a computer connected to an interplanetary network.
Food
Gravity
Houses
Free time
Schools
______________________________ ______________________________ ______________________________ ______________________________ ______________________________
Sandy is not old enough to go to school.
Post-reading
5. Every student would have a computer at home connected to an interplanetary network.
connect … to … 意为“把……连接在……上，……与……连在一起” 。此处connected to an interplanetary network是过去分词短语，作后置定语修饰名词computer。computer与connect是动宾关系，故动词用过去分词形式。如果被修饰的名词与动词之间是主谓关系，则用该动词的现在分词形式。e.g. 连接上海和天津的铁路正在建设中。 ___________________________________________________________
2. 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!
should (must/had better/can)
shouldn’t (mustn’t/had betternot/can’t/don’t)
Post-reading
What should we do or shouldn’t we do to protect the Earth?
Group work
2. How long does the spacecraft need to get to Mars at present? Why?
While-reading
Every student would have a computer at home connected to an interplanetary network.
too … to … 意为“太……而不能…… ”，注意和 … so … that ... can’t ...,... adj. + enough to do ... 的句型转换。
e.g. Sandy太小了而不能去上学。
Sandy is too young to go to school.
Sandy is so young that she can’t go to school.
6. Life on Mars would be interesting as well as challenging.
他们既参观了动物园，又参观了博物馆。
他和他的朋友们都喜欢购物。
Let’s discuss
Post-reading
1. Do you think it’s true that we can live on Mars?2. What advantages and disadvantages are there on Mars?3. If we live on Mars, what should we do?4. Could humans survive on Mars without water, oxygen or food?
While-reading
ቤተ መጻሕፍቲ ባይዱ
Life on Mars
Analyze life on Mars
Food would most probably in the form of pills and would not be so tasty.
The gravity on Mars is only about three-eighths of that on the Earth.
3. Where would we study on Mars?
By the year 2100, the journey might only take about 20 minutes in spacecraft that travel at the speed of light.
4. How long does the spacecraft need to get to Mars in the future?
more and more 用来加强程度，意为“越来越……”。
e.g. 越来越年轻 越来越快 越来越好 越来越细心 越来越舒服
younger and younger
faster and faster
better and better
more and more careful
The railway connecting Shanghai to Tianjin is under construction now.
Post-reading
as well as 意为“不但……而且，既……又”。注意这一短语在翻译成中文时，应先as well as 后面的内容，再翻译前面的。e.g. They visited the museum as well as the zoo. ______________________________________________ He as well as his friends likes going shopping. ______________________________________________
That night he drove the car at the speed of 200 kilometres per hour.
The cars are driving at high speed.
Post-reading
3. The gravity on Mars is only about three-eighths of that on the Earth. three-eighths 意为“八分之三 ”。 分数表达法：分子用基数词，分母用序数词，如果分子大于1，分母要用复 数形式。注意：分数做主语，谓语动词的单复数由名词决定。二分之一通常 用a half来表示，而四分之一通常用a quarter, 也可用a fourth，四分之三通常 用three quarters或three fourths来表示。 e.g. 我们班五分之三是女生。 _____________ the students in my class _______ girls. 三分之一的水是脏的。 _____________ the water _____ dirty.
Unit 4 Life on MarsReading (II)
Why do people want to move to Mars?
Warming-up
Think and say
The Earth is becoming more and more c_________ and p__________ because the population is increasing r__________. Some people would like to move to M______. They think by the year 2100 our s___________ could carry large numbers of p___________.However, there could be many problems. For example, could humans survive without water, o________ or food? How would people prevent themselves from f________ off in space? Would there be schools on Mars? Anyway, c_________ with life on the earth, life on Mars would be interesting as well as c____________.
Post-reading
Learn the language points
1. Our own planet, the Earth, is becoming more and more crowded and polluted because of the rapid increase in population.
1. Why will we leave our own planet the Earth?
Read and answer
While-reading
It takes months. Because our spacecraft are too slow to carry large numbers of people to Mars at present.
more and more comfortable
Post-reading
at the speed of 意为“以……速度”。类似的短语：at the price of 意为“以……的价格”。at a high price意为“高价”。at a low cost意为“低成本”。at full/high speed意为“全速/高速”。e.g. 那天晚上他以每小时200千米的速度驾驶。 _________________________________________________________ 汽车正高速行驶。 _________________________________________________________