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三、The teaching steps.
Step1. Have a classroom small test.And then check the answers.
Step2. Check the homework.
Step3. 词形变化
1. protect (动词)—______________ (名词)
2. organize (动词)—______________ (名词)
3. recycle (动词)—_______________ (名词)
4. agree (动词)—_______________ (名词)
5. electric (形容词)—_______________ (名词)
6. battery —_______________ (复数)
7. act (动词)—________ (名词)—_________ (形容词)
8. weight (名词)—______________ (动词)
9. historical (形容词)—_____________ (名词)
10. difference (名词)—_______________ (形容词)
11. plant (动词)—_______________ (名词)
12. German (名词)—_______________ (形容词；名词)
13. nod —_______________ (过去式)
14. shake —________ (过去式)—_________ (过去分词)
Step4.读、背 重点词组
1. 为……工作________________________________________________
2. 宣传有关…… ______________________________________________
3. ……的两面_________________________________________________
4. 塑料袋_____________________________________________________
5. 鼓励某人去做某事___________________________________________
6. 软饮料罐___________________________________________________
7. 赶快_______________________________________________________
8. 放弃做某事_________________________________________________
9. 关掉_______________________________________________________
10.（是） ……而不是……_____________________________________
11. 带一个布袋_______________________________________________