九年级英语全册 Unit 8 We’re trying to save the earth The Sixth Period教案 鲁教版五四制-鲁教版五四制初中九年级全册英语教案.doc

Unit 8 We’re trying to save the earth!
The Sixth Period Grammar Focus / Self Check
【Teaching aims】
一、听、说、读、写以下词汇：afford
了解以下词汇的读音和意义：reusable, transportation
二、通过学习，口、笔头掌握下列句型：
1) Yes, everyone should play a part in keeping the city clean.
2) Big things must be done to save the earth.
3) A: We think everyone should use public transportation.
B: We disagree. It’s difficult for parents with young children to use public transportation …
三、通过对本单元语法的复习与巩固，学会归纳与总结。
四、学生通过分析城市现状，培养自己的环保意识，并为我们的城市做力所能及的事情。
Difficulties：本单元语法的复习与巩固
【Teaching steps】
1. 本单元复习了哪几种语态？
Jason thinks that the air is badly polluted.
Susan used to see the mountains clearly.
People are also littering in public places.
They think that they can do nothing to help.
They are talking about the noise pollution they have seen.
观察上面的黑体字内容，它们分别对应了几种时态或语态？1._________ 2._________ 3.__________ 4._________ 5.___________。你能归纳出这几种时态或语态的结构吗？1._________ 2._________ 3.__________ 4._________ 5.___________。
2. Fill in the blanks.
We’re ________ (try) to save the earth.
The river used to _________ (is) so clean.
The air is badly__________ (pollute).
No scientific students have __________ (show) that shark fins are good for health.
We should _________ (help) save the sharks.
3. Write different forms of the words. Then add more to each group.
4. Work on 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!
5. Work on 4b.
Fill in the blanks with the appropriate modal verbs from the box.
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!

6. Match each statement with the grammar structure.
Statement
Grammar
The river used to be so clean.
Present progressive
We have seen many changes in the environment.
Modal verbs
People should take public transportation more.
Passive voice
The river is polluted by factories.
Used to do
The air pollution is getting worse and worse.
Present perfect

7. Work on Self Check 3.
Make a list of things that people can do to help the environment and discuss your list with your partner
A: I think everyone should use public transportation.
B: I disagree. It’s difficult for parents with young children to use public transportation …

8. Work on Self Check 3.
Write ways to cut down on these kinds of pollution.
9. 单元小结