Unit 6 Earth first Starting out Writing 课件(共14张PPT，内镶嵌2视频)-外研版（2019）必修第二册（改一下分类，谢谢

(共14张PPT)
Book2 Unit 6
Earth first
Starting out+writing
蔺阳中学 高二14班
蒲守平
objective3
objective 1
objective2
1.Retell what the video wants to tell us through the alarming numbers.
Learning objectives
2.Find out the causes for environmental problems cartoons refer to.
3.Complete an essay on the causes for environmental problems and solutions to relieving the problems.
Earth, home to countless plants and animals for millions of years， has 1.______uncertain future.
How many of 2.______(we) are aware that...
around twenty-five thousand trees 3._________(cut) down each day just to make toilet paper.
each day, around one hundred and fifty to two hundred species of plants and animals become 4.______(extinction)--nearly one thousand times the natural rate of extinction.
a plastic bottle can take four hundred and fifty years 5.____________(break) down.
the ice caps are more than fifty percent thinner 6.______ they were forty years ago.
If we do not change our ways, we are at risk of 7.______(ruin) our planet and destroying many more plants 8.______ animals...
Time is running out. Our planet 9._______(need) our help.
It’s up to us to decide together 10._______ happens next.
an
us
are cut
extinct
Checking homework
to break
than
ruining
and
needs
what
When it comes to protecting earth and the environment, what environmental problems come to your mind
water pollution
air pollution
deforestation
global warming
waste disposal
soil pollution
Warming up
1. Watch the video and note down the numbers.
1) _______ square kilometers of forest disappear every year.
2) Around _______ trees are cut down each day just to make toilet paper.
3) Each day, around _______ to _______ species of plants and animals become extinct --nearly _______ times the natural rate of extinction.
4) Over ________ animals are killed by ocean pollution each year.
5) _______ people don't have clean drinking water.
6) A plastic bottle can take ______ years to break down.
7) The ice caps are more than ______ thinner than they were ______ years ago.
Save Life on Earth
Problems on Earth
Solutions to Saving Earth
1. Watch the video and note down the numbers.
Save Life on Earth
Problems on Earth
Solutions to Saving Earth
1. Watch the video and note down the numbers.
1) _______ square kilometers of forest disappear every year.
2) Around _______ trees are cut down each day just to make toilet paper.
3) Each day, around _______ to _______ species of plants and animals become extinct --nearly _______ times the natural rate of extinction.
4) Over ________ animals are killed by ocean pollution each year.
5) _______ people don't have clean drinking water.
6) A plastic bottle can take ______ years to break down.
7) The ice caps are more than ______ thinner than they were ______ years ago.
Save Life on Earth
Problems on Earth
Solutions to Saving Earth
130,000
25,000
150
200
1,000
1 million
1 billion
450
50%
40
What do you think of the numbers
A.Comforting.(令人安慰的)
B.Alarming.(令人担忧的)
C.Interesting.
Save Life on Earth
Problems on Earth
Solutions to Saving Earth
What does the video want to tell us
Save Life on Earth
Problems on Earth
Solutions to Saving Earth
Severe environmental problems we are facing nowadays make our future uncertain. It's time for everyone to take action now and make our planet a greener and safer place for our future generations.
Save Life on Earth
Problems on Earth
Solutions to Saving Earth
2. Look at the cartoons（漫画） and answer the questions.
①What environmental problem does each cartoon refer to
②What are the causes of these problems
Problems
Causes
water pollution
deforestation (森林砍伐)
air pollution
global warming
improper waste disposal (处理)
climate change
cutting down too many trees
overpopulation
fossil fuel (化石燃料) burning
Save Life on Earth
Problems on Earth
Solutions to Saving Earth
3.What should be done to help solve the problems (GW)
Earth first
Save Life on Earth
Problems on Earth
Solutions to Saving Earth
4.Complete an essay on the causes for environmental problems and solutions to relieving the problems.
随着社会的发展，如今水污染、森林砍伐、空气污染、全球变暖等问题日益严重。假定你是校英语俱乐部的负责人李华，请你写一封倡议信呼吁成员行动起来，内容包括：
1.环保的重要性;
2.水污染、森林砍伐、空气污染、全球变暖等问题的原因；
3.联系学生身份的实际，发起具体的倡议活动。
Assignment
Check and correct your expressions. Hand in your essay with neat handwriting(公整的书写) tonight before 9pm.