《We're trying to save the earth!》PPT课件9
Lead in
Do you like animals?
Do you know the shark?
Do you know why the people killed the sharks?
Do you hear about the shark fin soup?
Now many sharks are killed for this kind of soup. Sharks are fewer and fewer. What should we do? Let’s come to 3a.
Read for the general idea of 3a.
The general idea of the article is about____.
A. air pollution
B. the sharks
C. water pollution
... ... ...
3b. Read the passage again and fill in the blanks with the words in the box.
so, although, if, but, when
1. Many people do not realize they are killing a whole shark _________they enjoy a bowl of shark fin soup.
2. Sharks are at the top of the food chain, _______if their numbers drop, the ocean’s ecosystem will be in danger.
3. Many think that sharks are too strong to be endangered, _________they are wrong.
4. _________there are no scientific studies to support this, a lot of people believe that shark fins are good for health.
5. Sharks may disappear one day__________ we do not do something to stop the sale of shark fins.
... ... ...
4a.Fill in the blanks with the correct forms of the verbs in brackets.
Joe: ______you ever_______ (take) part in an environmental project?
Ken: Yes, I have. I_________ (help) with a Clean-Up Day last year. It was_______ (consider) the biggest clean-up project this city______ ever______ (have).
Joe: How many people_________ (take) part?
Ken: I ________(think) more than 1,000 people ________(come) to help out.
Joe: That’s fantastic! I guess everyone in this city is_______ (try) to improve the environment.
Ken: Yes, we can't afford to ________(wait) any longer to take action!
... ... ...
4b. Fill in the blanks with the appropriate modal verbs from the box.
can, would, could, have to, should, must, may/might
People_______ think that big things _______be done to save the earth. Many forget that saving the earth begins with small things. For example, you _______save electricity by turning off the lights when you leave a room. You _______also use reusable bags instead of plastic bags. I think it's a great idea that you now _____pay for plastic bags in some stores. And instead of driving to school or work, you_______ ride your bike or walk. If it’s far, you______ take the bus. All these small things ______add up and become big things that_______ improve the environment. Let's take action now!
... ... ...
Homework
1. Read and write the new words and expresses.
2. Retell 3a.
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