Unit 1 The Changing World Topic 3 The world has changed for the better.SectionB 课件25张PPT 无音视频

课件25张PPT。Unit 2 Saving the Earth Topic 3 What can we do at home to protect the environment? Section B You should sort the garbage.
=You ought to sort the garbage. Imagine you are spreading the message about protecting the environment.What advice can you give us?You should /ought to …shut off the electricityn.电，电能关闭e.g. You should / ought to shut off the electricity when you leave a room. Finish 1c 1. You ought to shut off the electricity2. distancetake a bus or a taxiwalk or ride a bikesave energyreduce air pollution3.take a cloth bagplastic bagskey points1.Would you like to be a greener person?

2.You ought to shut off the electricity when you leave
a room.
3.It's so easy to be a greener person.
4.You'd better walk or ride a bike instead of taking a
bus or a taxi if you travel a short distance.Actions speak louder than words.Remember some English idioms and try to use them often. Easier said than done. 说起来容易做起来难。行动胜于言辞。Change 1a into a short report according to the key
phrases.You can begin like this:
I would like to be a greener person.First...Second...Retell 1a . I would like to be a greener person.
First I ought to shut off the electricity when I leave a room.
Second, I’d better walk or ride a bike instead of taking a bus or a taxi if I travel a short distance. I will save energy and reduce air pollution.
Third, I will take a cloth bag when I go shopping. I won’t use plastic bags.
It’s easy to be a greener person. 2 Choose the correct verbs or phrases to complete the statements. Then match them with the right pictures. shut off reduce grow recycle ride cover use______ waste. Don’t buy cups or boxes which can be used only once.
Save electricity. ________ the electricity when you are not using it.
________ boxes and plastic bottles.
________ fruit and vegetables yourself.
Try to ________ a bike when you travel.
_________ both sides of the paper.
__________ pans when you are cooking. ReduceShut off RecycleGrowrideUseCover2 Match them with the right pictures. 21345673 Read the passage and fill in the blanks with the correct words. The first letter of each word is given. 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.
hilenduthangedoureriouseduceecyclereenerverything毕竟，归根结底You ______ ______(应该) throw the rubbish into the garbage.
You should ______ ______(关闭)the electricity when you leave a room.
You’d better walk or ride a bike ______ _____ (代替) taking a bus or a taxi if you travel a short distance.
It’s so ______(容易) to be a greener person.
_______ _____ _____ _____ ________.
(行动胜于言辞) Exercises ought to shut off instead of easyActions speak louder than words ( )1.The earth is our home.Everyone___take care of it.
A.used to B.need to C.should to D.ought to
( )2.The old lady lives alone,__she doesn't feel lonely.
A.so B.though C.but D.or
( )3.-Would you like to be a greener person?
-____.
A.Green is my favorite color.
B.I always use plastic bags.
C.I always ride a bike to save energy.
D.I prefer green to white.
DCC( )4.Let's go for a picnic___staying at home,shall we?
A.as well as B.in order to
C. instead of D.as soon as
( )5.You should forgive him for his forgetfulness,___, he is over seventy.
Aeven though B after all
C nor D neithercBWe learn: 1. Some words: action, distance,
electricity
2. Some phrases:
ought to, shut off, after all
3. Some useful sentences:
(1)Would you like to be a greener person?
(2)First, you ought to turn off the lights when you leave a room.
(3)Easier said than done.
(4)Well, actions speak louder than words.
We Can: 1. Use the proper ways to protect
the environment in our life.
2. Talk about the greener life style.
Read 1a.
Memorize the useful expressions and key sentences that we learn today.
Finish Section B in your workbook.
Preview Section C.
AssignmentThank you !