还剩37页未读，
继续阅读
人教版 (新课标)必修3&4Unit 4 Astronomy: the science of the stars课文内容ppt课件
展开
这是一份人教版 (新课标)必修3&4Unit 4 Astronomy: the science of the stars课文内容ppt课件，共45页。PPT课件主要包含了Big Bang，Discussion，Thank you，dinosaurs ，Mammals等内容，欢迎下载使用。
The rigin f the earth and life
HOW LIFE BEGAN ON THE EARTH?
Passage structure
Para 2:Para 3:Para 4:
A widely accepted thery abut the frmatin f the universe.
The frmatin f the earth.
The imprtance f water fr life.
The develpment f plants and animals n the earth.
The arrival f humans and their influence n the earth.
Read the passage carefully and analyse its structure:
life develpment
1. What is the riginal earth’s atmsphere made up f? 2. What is fundamental t the develpment f life?3. Which kind f life-being first appeared n the earth, plants r animals?
Scan the passage quickly t answer the fllwing questins.
carbn, nitrgen, water vapur, and ther gases
2. What is fundamental t the develpment f life?
1. What is the riginal earth’s atmsphere made up f?
3. Which kind f life-being first appeared n the earth, plants r animals? Why?
Plants. Because small plants began t appear n the surface f the water and they multiplied and filled the ceans and seas with xygen, which encuraged the later develpment f early shellfish and all srts f fish.
（ ）A Insects and amphibians appeared.（ ）B Dinsaurs appeared.（ ）C The earth became a slid ball.（ ）D Small plants grew n the water. （ ）E Reptiles appeared.（ ）F Plants began t grw n land.（ ）G The earth was a clud f dust.（ ）H Water appeared n the earth.（ ) I Shellfish and ther fish appeared.（ ）J The universe began with a “Big Bang”.（ ）K Clever animals with hands and feet appeared.（ ）L Mammals appeared.
Detailed reading
Put the rder f develpment f life int a time line.
Greenhuse effect
What prblems are humans causing ?
putting carbn dixide int the atmsphere
the earth may becme t ht
Pst reading
After reading the passage, discuss the fllwing questins.
1. Why is the earth different frm the ther planets?
2. Why is it wrng t shw films with dinsaurs and peple tgether?
Because water remains n the earth.
Because dinsaurs died ut lng befre human beings develped n the earth.
We are making the wrld better.
We are making the wrld wrse.
develped new methds f grwing fd
(1) What humans develped?
develped new methds f hunting
develped new methds f mving arund
The develpment f the earth
Stage 1: The develpment f the earth
(1) After the Big Bang, what happened?
a clud f dust
a vilent slid glbe
explded with fire and rck
prduced carbn,nitrgen ,water vapur& gases
(2) What happened next?
(3) What did the water vapur and gases frm?
the earth’s atmsphere
Water appeared
(4) What appeared n the earth then?
(5) What did the water frm?
ceans and seas
The develpment f life
extremely small plants
First
early shellfish
Stage 1: The develpment f life in water
all srts f fish
green plants n land
insects n land
Stage 2: The develpment f life n land Next
amphibians n land and in the water
Green plants grew int frests Later
reptiles n land
dinsaurs n land
(1) What life develped after frests appeared?
mammals n land
(2) What life develped after dinsaurs?
small clever animals
(3) What life develped after mammals? Finally
They develped new methds f grwing fd, hunting and mving arund. As time went by they cvered the earth and have becme the mst imprtant animals n the planet.
As a student, what little things can we d fr the earth?
Whether life will cntinue n the earth depends n human beings.
Only if we care will we help,nly if we help shall all be saved!
Translatin f paragraph 4
好几百万年之后，在海洋表面出现了第一个微生植物。他们大量繁殖，海洋里就充满了氧气，而这促使早期贝类和各种鱼类后来的发展。接下来，绿色植物开始在陆地上生长。陆生动物紧随而来。昆虫也是其中之一。另外的一些称为两栖动物，他们既能生活在陆地上，也能生活在水中。后来，当植物生长成森林，爬行类出现了。他们通过产卵繁衍后代。在那之后，一些被称为恐龙的巨型动物发展起来了。他们也是卵生的，在地球上生存了1亿4千万多年。恐龙时代于6500万年结束。他们为什么突然消失依然是个谜团。但他们的消失使哺乳动物在地球上的繁荣成为可能。哺乳动物和过去的所有生命形式不同，因为他们分娩并产奶来喂养幼仔。
Assignment:1. Cllect mre infrmatin abut the develpment f life and make a pster with yur grup members.2. Read and retell the passage.
Lets review the evlutin f life n the earth.
After the “Big Bang”, the earth was full f water.
Original cells appeared in the cean.
The cells in the water began t separate. Marine animals came int being.
Sme animals (amphibian & insects) came t land.
Reptile appeared.
slar system太阳系
But scientists nw think Plut is t small t be called a planet.
Pre-reading
D yu knw hw ur life began n the earth? D yu knw any ancient idea abut the beginning f the universe?
The rigin f the earth and life
HOW LIFE BEGAN ON THE EARTH?
Passage structure
Para 2:Para 3:Para 4:
A widely accepted thery abut the frmatin f the universe.
The frmatin f the earth.
The imprtance f water fr life.
The develpment f plants and animals n the earth.
The arrival f humans and their influence n the earth.
Read the passage carefully and analyse its structure:
life develpment
1. What is the riginal earth’s atmsphere made up f? 2. What is fundamental t the develpment f life?3. Which kind f life-being first appeared n the earth, plants r animals?
Scan the passage quickly t answer the fllwing questins.
carbn, nitrgen, water vapur, and ther gases
2. What is fundamental t the develpment f life?
1. What is the riginal earth’s atmsphere made up f?
3. Which kind f life-being first appeared n the earth, plants r animals? Why?
Plants. Because small plants began t appear n the surface f the water and they multiplied and filled the ceans and seas with xygen, which encuraged the later develpment f early shellfish and all srts f fish.
（ ）A Insects and amphibians appeared.（ ）B Dinsaurs appeared.（ ）C The earth became a slid ball.（ ）D Small plants grew n the water. （ ）E Reptiles appeared.（ ）F Plants began t grw n land.（ ）G The earth was a clud f dust.（ ）H Water appeared n the earth.（ ) I Shellfish and ther fish appeared.（ ）J The universe began with a “Big Bang”.（ ）K Clever animals with hands and feet appeared.（ ）L Mammals appeared.
Detailed reading
Put the rder f develpment f life int a time line.
Greenhuse effect
What prblems are humans causing ?
putting carbn dixide int the atmsphere
the earth may becme t ht
Pst reading
After reading the passage, discuss the fllwing questins.
1. Why is the earth different frm the ther planets?
2. Why is it wrng t shw films with dinsaurs and peple tgether?
Because water remains n the earth.
Because dinsaurs died ut lng befre human beings develped n the earth.
We are making the wrld better.
We are making the wrld wrse.
develped new methds f grwing fd
(1) What humans develped?
develped new methds f hunting
develped new methds f mving arund
The develpment f the earth
Stage 1: The develpment f the earth
(1) After the Big Bang, what happened?
a clud f dust
a vilent slid glbe
explded with fire and rck
prduced carbn,nitrgen ,water vapur& gases
(2) What happened next?
(3) What did the water vapur and gases frm?
the earth’s atmsphere
Water appeared
(4) What appeared n the earth then?
(5) What did the water frm?
ceans and seas
The develpment f life
extremely small plants
First
early shellfish
Stage 1: The develpment f life in water
all srts f fish
green plants n land
insects n land
Stage 2: The develpment f life n land Next
amphibians n land and in the water
Green plants grew int frests Later
reptiles n land
dinsaurs n land
(1) What life develped after frests appeared?
mammals n land
(2) What life develped after dinsaurs?
small clever animals
(3) What life develped after mammals? Finally
They develped new methds f grwing fd, hunting and mving arund. As time went by they cvered the earth and have becme the mst imprtant animals n the planet.
As a student, what little things can we d fr the earth?
Whether life will cntinue n the earth depends n human beings.
Only if we care will we help,nly if we help shall all be saved!
Translatin f paragraph 4
好几百万年之后，在海洋表面出现了第一个微生植物。他们大量繁殖，海洋里就充满了氧气，而这促使早期贝类和各种鱼类后来的发展。接下来，绿色植物开始在陆地上生长。陆生动物紧随而来。昆虫也是其中之一。另外的一些称为两栖动物，他们既能生活在陆地上，也能生活在水中。后来，当植物生长成森林，爬行类出现了。他们通过产卵繁衍后代。在那之后，一些被称为恐龙的巨型动物发展起来了。他们也是卵生的，在地球上生存了1亿4千万多年。恐龙时代于6500万年结束。他们为什么突然消失依然是个谜团。但他们的消失使哺乳动物在地球上的繁荣成为可能。哺乳动物和过去的所有生命形式不同，因为他们分娩并产奶来喂养幼仔。
Assignment:1. Cllect mre infrmatin abut the develpment f life and make a pster with yur grup members.2. Read and retell the passage.
Lets review the evlutin f life n the earth.
After the “Big Bang”, the earth was full f water.
Original cells appeared in the cean.
The cells in the water began t separate. Marine animals came int being.
Sme animals (amphibian & insects) came t land.
Reptile appeared.
slar system太阳系
But scientists nw think Plut is t small t be called a planet.
Pre-reading
D yu knw hw ur life began n the earth? D yu knw any ancient idea abut the beginning f the universe?
相关课件
人教版 (新课标)必修3&4Unit 4 Astronomy: the science of the stars复习ppt课件： 这是一份人教版 (新课标)必修3&4Unit 4 Astronomy: the science of the stars复习ppt课件，共34页。PPT课件主要包含了grammar，drills，history ，value，dangers ，future ，astronaut，procedure，mental ，physical等内容，欢迎下载使用。
高中英语人教版 (新课标)必修3&4Unit 4 Astronomy: the science of the stars教学课件ppt： 这是一份高中英语人教版 (新课标)必修3&4Unit 4 Astronomy: the science of the stars教学课件ppt，共45页。PPT课件主要包含了Lead-in，New words，Let’s play，看谁答的快又准，otherwise，Lack，recycle，beyond，current，sufficient等内容，欢迎下载使用。
高考英语一轮复习3 Unit 4 astronomy the science of the stars课件： 这是一份高考英语一轮复习3 Unit 4 astronomy the science of the stars课件，共60页。PPT课件主要包含了Unit 4，system，基础自主梳理，climate，religion，atmosphere，thus，gentle，crash，pull等内容，欢迎下载使用。
