资源描述
The Fourth Period—Section B(2a－2e)
Teaching Important Points 【教学重点】
Key words & phrases：
gate，bottle，president，work，metal
throw away，put sth. to good use，pull…down，bring back
Key sentences：
1.Have you ever thought about how these things can actually be put to good use?
2.Nothing is a waste if you have a creative mind.
3.He is known for using iron and other materials from old cars to make beautiful art pieces.
Key structure：
Review of the tenses.
Teaching Difficult Points 【教学难点】
★Understand prefixes and suffixes.
Teaching Aids 【教学工具】
A tape recorder，CAI or multimedia courseware.
Teaching Steps 【教学过程】
★Step 1 Leading in 【新课导入】
1．Greeting
2．Review
Ask students some questions：
What can we do to help save the earth?
Have you ever recycled books or papers?
★Step 2 Cooperative inquiry 【合作探究】
1．Finish the task in 2a
①Work in groups.Look at the title and the pictures in 2b.What is the passage about？Can you guess？Discuss in groups and prepare the new words for the coming reading.
②Ask individual students to talk about this.The teacher gives suggestions.And lead to the reading.
2．Finish the task in 2b
①Ask：what can you see in the pictures？What is it/are they made of？Do you think it's a good way to protect the environment？While talking with the students，the teacher can present new words and expressions.
upside down，iron，work，metal，creativity
②Read the paragraphs quickly and understand their main ideas.
③Read the passage again.Finish the chart in 2b.And underline the sentences in the passage.
④Check with the class.
3．Finish the task in 2c
①Read the phrases in the box in 2c.Then find them in the passage.Learn their meanings.
②Read the sentences in 2c and understand them.Finish the task of filling.Get the students to read out the complete sentences and check their work.
4．Finish the task in 2d
①Read the strategy in the box in 2b.Teach prefixes and suffixes.
②Get the students to find words based on these given words in the passage.Write down the words and tell their meanings.
rethink，reuse，unusual
actually，building，creative，recently，environmental，importance，protection，inspiration
especially
③Ask how these prefixes and suffixes affect the meaning.Give more roots for the students to form new words.
agree happy polite possible honest friendly
China care help home use hope friend neighbor
5．Finish the task in 2e
①Read the instructions.What need to be done to save the environment？Make a list.
②Students work in groups.Discuss the following：
Which things can be done by individual people？Which things have to be done by government and organizations?
③One student from each group reports the opinions to the class.
★Step 3 Homework
1．Read aloud the passage in 2b until fluently and learn the new words and expressions in it.
2．Write down the list of things we can do or have to do to protect the environment in the exercise books.
3．Translate the following sentences into English.
(1)我们可以变废为宝。
________________________________________________________________________
(2)他善于利用废旧物品。
________________________________________________________________________
(3)这些花是由废弃的塑料瓶制作的。
________________________________________________________________________
Board Design 板书设计
Rethink，Reuse，Recycle!
rethink，reuse，unusual
actually，building，creative，recently，environmental，importance，protection，inspiration
especially
Prefixes：re－ un－ dis－ in－/im－/il－
Suffixes：－ly－ful－less－ness－ship－ese－er/－or－y－al－hood－ing－ed－tion－sion－tive－ment
agree happy polite possible honest friendly
China care help home use hope friend neighbor
Teaching Reflection 【教学反思】
In the reading period，students accept a large amount of information besides they learn new words and expressions and structures.So today they will learn how to help save the earth.What can we do and what do the government and organizations have to do to protect the environment？It is a good time to train the students' ability of reading quickly and efficiently.While reading，students learn the main and the most important ideas as quickly as they can.They can also learn something about prefixes and suffixes.
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