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(共22张PPT)
Unit 2 Saving the Earth
Topic 3
What can we do at home to protect the environment
Section B
Learning aims
一、掌握以下单词：ought to, electricity, distance等。
二、通过听说了解有关节能减排和低碳生活的词汇、句型。
三、学习用部分谚语丰富或表达自己的观点。
四、在图文帮助下，完成听力活动的相关练习，锻炼听力技能。
Review
Mary lives about five miles from her work. She used to take a bus there. ________ now there are no buses travelling that way. So she rides to work, ________ her colleagues drive their cars. __________ she could afford a car, she did not want to add to the earth’s pollution. ________ she bought an electric motorbike. The bike does not pollute ________ Mary does not need to pay for gasoline. She is happy that her bike is not polluting the environment.
But
while
Although
So
and
Complete the passage with and, but, so, while or although.
2
Choose the correct verbs and phrases to complete the blanks.
shut off reduce grow recycle ride cover use
________ waste. Don’t buy cups or boxes
(which can be used only once).
2. Save electricity. __________ the electricity
when you are not using it.
3. __________ boxes and plastic bottles.
4. ________ fruit and vegetables yourself.
5. Try to ________ a bike when you travel.
6. _________ both sides of the paper.
7. __________ pans when you are cooking.
Reduce
Shut off
Recycle
Grow
ride
Use
Cover
Then match them with the right pictures.
2
1
1
2
3
4
5
6
7
Retell
Remember some English idioms and try to use them often.
Easier said than done.
说起来容易做起来难。
Actions speak louder than words.
行动胜于言辞。
1. Jane and Michael are mainly talking about ______.
A. why we should shut off the electricity when we leave
B. what we should use when we go shopping
C. how to be a greener person
2. “Actions speak louder than words” means ______.
A. words are not as loud as actions
B. to do well is better than to say well
C. actions can speak, but words can’t do it
1b
Listen to 1a and choose the correct answers.
C
B
1c
Read 1a and cpmplete the table.
To be a greener person
1. ________________________________________when you leave the room.
2. If you travel a short __________, you shouldn’t _________________________ , but _________________________. So this helps to __________________ and
_________________________.
3. When you go shopping, you’d better ______________________ instead of using ____________________.
You ought to shut off the electricity
distance
take a bus or a taxi
walk or ride a bike
save energy
reduce air pollution
take a cloth bag
plastic bags
1a
Listen, look and say.
Jane: Hi, Michael. Would you like to be a greener person
Michael: Of course. I’d love to. But what should I do
Jane: First, you ought to shut off the electricity when you leave a room.
Michael: Oh, that’s easy. What’s next
Jane: Second, you’d better walk or ride a bike instead of taking a bus or a taxi if you travel a short distance.
1a
Listen, look and say.
Michael: That’ right. It will save energy and reduce air pollution.
Jane: Third, take a cloth bag when you go shopping. Don’t use plastic bags.
Michael: It’s so easy to be a greener person.
Jane: Easier said than done.
Michael: Well, actions speak louder than words.
1. You ought to shut off the electricity when you leave a room.
Key points
eg. You ought to tell her the bad news. （改为否定句）
______________________________________________________
We ought to go there. （改为一般疑问句）
______________________________________________________
You ought not to tell her the bad news.
Ought you to go there
(1) 肯定句: ought to do sth.应该做某事
(2) 否定句： ought not to do sth. 不应该做某事
(3) 一般疑问句： 把 Ought 提到句首。
肯定回答： Yes，主语 + ought.
否定回答： No，主语 + ought not.
Key points
shut off
shut up
turn off
turn on
turn up
turn down
闭嘴
关闭
关
调小
开
调大
give up
give away
give off
give out
give in
give back
捐赠
分发
放弃
散发
归还
屈服
2.短语区分。
Key points
4.You’d better walk or ride a bike instead of taking a bus or a taxi if you’re traveling a short distance.
instead of 意为“而不是”，连接对等结构, 相当于rather than。
instead of of doing sth. = rather than 后面和前面结构一致
前do后do, 前to do后to do, 前doing后doing
①I like coffee rather than tea. = _____________________________________
② She ran rather than _________(walk). = She ran instead of _____________.
She enjoys singing rather than _____________(dance).
She decided to write rather than __________________(telephone).
I like coffee instead of tea.
walked
walking
dancing
to telephone
4. Actions speak louder than words.
Key points
action 是 act 的名词形式
take action to do sth. “采取行动做某事”
= take measures to do sth. “采取措施做某事”
1. We must take action ______ our mother earth immediately.
A. to protect B. protecting
2. The government ought to take measures _____ environmental pollution.
A. stopping B. to stop
A
B
3
Read the passage and fill in the blanks .
The earth is our home. Some things (we have done) are good for the earth w_______ some are bad. We have polluted the earth, a_______ it is sick now. We c_____ down too many trees, so lots of rich land has c_______ into desert. Factories p______ waste water into rivers. Pollution has caused many s________ problems. The earth is crying for help.
What shall we do to save it We should plant more trees, r__________ the waste (we produce), r__________ the waste paper and soft drink cans, and ride bikes to reduce air pollution. I think we should try to be g__________ people to protect our earth. After all, we have only one earth. We should do e____________ to protect it, or we’ll be punished and lose our home.
hile
nd
ut
hanged
our
erious
educe
ecycle
reener
verything
Work in groups and survey your group members about what they do to be greener people. Then report it to your class. Pay attention to the stress, liaison, incomplete plosion and intonation.
4
Example:
A: `Wha(t) do you `often `do to be a `greener person
B: Well. `I `always `shut off the electricity when I 'am not
`using it .
A: `Good. `What about you , `John
We learn:
We can:
Summary
Thank you !
Thanks!
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