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二、教学重难点
1. 教学重点：
1) 学习生词fridge, low, somebody, translate, lock, earthquake, sudden, all of a sudden, biscuit, cookie, instrument
2) 复习巩固Section A 部分所学的生词和词组，达到熟练运用的目标。
2. 教学难点：
1) 一般过去时态的句子变为被动语态。
2) 综合运用所学的知识进行练习运用。
三、教学过程
Ⅰ. Warming- up and revision
1. Have a dictation of the new words learned in the last class.
2. Review some main phrases we learned in the last class. Check the homework.
3. Let some Ss tell something about how tea was invented by accident.
Tell something about how tea was invented by accident.
One day Shen Nong was boiling drinking water over an open fire. Some leaves from a tea plant fell into the water and remained there for some time......
Ⅱ. Grammar Focus.
1. 学生阅读Grammar Focus中的句子，然后做填空练习。
① 拉链是什么时候被发明的？
______ _____ the zipper ________?
② 它于1893年被发明。 It ______ _________ in 1893.
③ 它是由谁发明的？ ______ _____ it invented ______?
④ 它是由惠特科姆?贾得森发明的。 It _____ _______ _____ Whitcomb Judson.
⑤ 茶叶什么时候被带到朝鲜去的？ _____ ______tea ________ to Korea?
⑥ 茶叶在六到七世纪之间被带到朝鲜。
It _____ _______ to Korea ________the 6th and 7th centuries.
⑦ 热冰淇淋勺用来做什么？ What ____ the hot ice-cream _____ _____?
⑧ 它用于挖很冷的冰淇淋。
It’s _____ ______ ______ really cold ice-cream.
⑨ 电话机在1876年被贝尔所发明。
The telephone _____ ________ _____ Alexander Graham Bell in 1876.
⑩ 贝尔于1876年发明了电话机。