人教版九年级全册Unit 6 When was it invented？课件(共20张PPT)

(共20张PPT)
课题：When was it invented？难点名称：the passive voice of the past tense人教版英语九年级Unit 6目录CONTENTS导入Lead-in1876Please number them from 1-4.1971188519271324活动与探究（温馨提示：规范操作、注意安全）
知识讲解 Presentation
难点突破
Use pictures and examples to show the structure of the passive voice of the past tense.
—When was the zipper invented
—It was invented in 1893.
—Who was the zipper invented by
—It was invented by Whitcomb Judson.
活动与探究（温馨提示：规范操作、注意安全）
知识讲解 Presentation
—When was tea first drunk
—Many people believe that tea was first drunk about 5000 years ago.
—How was tea invented
—It was invented by Shen Nong by chance.
—When was tea brought to Korea
—It is believed that tea was brought to Korea during the 6th and 7th centuries.
活动与探究（温馨提示：规范操作、注意安全）
知识讲解 Presentation
—Lily and Marry were invited.
—You were invited, too, weren’t you
活动与探究（温馨提示：规范操作、注意安全）
知识讲解 Presentation
—Do you know how potato chips were invented
—Patato chips were invented by a cook called George Crum. They were invented in1853.
活动与探究（温馨提示：规范操作、注意安全）
知识讲解 Grammar Focus
Find out the sentence patterns

—When was the zipper invented
—It was invented in 1893.

—Who was the zipper invented by —It was invented by Whitcomb Judson.

—Many people believe that tea was first drunk about 5000 years ago.

—How was tea invented
—It was invented by Shen Nong by chance.

—Lily and Marry were invited.
—You were invited, too, weren’t you

—Do you know how potato chips were invented
—Patato chips were invented by a cook called George Crum. They were invented in1853.
—When was tea brought to Korea
—It is believed that tea was brought to Korea during the 6th and 7th centuries.
subject+was/were
+done+by+object
课堂练习Practice课堂练习PracticeTask 1: do some practice to review the structure of the passive voice of the past tense.invent drink bring produce One of the world’s favorite drinks was________by accident.Tea was first _______byShenNongabout 5000 years ago.A nice smell was ________when the tea leaves drooped into the hot water.Tea was_________to Korea and Japan during the 6th and 7th centuries.The earthquake happened all of a sudden, but luckily thevillagers _____________ toa safe place.inventeddrunkproducedbroughtwere brought课堂练习Task 2 rewrite to practice the passive voice of the past tense.Pleaserewrite the sentences using the passive voice.They sold the fridge at a low price.Thefridge was sold at a low price.课堂练习Pleaserewrite the sentences using the passive voice.2. Somebodystole my camera from my hotel room.Mycamera was stolen by somebody from my hotel room.3. Wheredid you take these photos Wherewere these photos taken 课堂练习Pleaserewrite the sentences using the passive voice.4. Ourparents advised us not to go out alone.Wewere advised not to go out alone by our parents.5. Differentwriters translated the book into different languages.Thebook was translated into different languages by different writers.课堂练习Makea report课堂练习Basketball is a much-loved and active sport that __________(enjoy) by many for fun and exercise. It ______(believe) that the first basketball game in history _______(play) on December 21,1891. Basketball________(invent) by a Canadian doctor named James Naismith.【课堂小结】
小结 Summary
the passive voice of
the past tense
【课堂小结】
小结 Summary
the structure of the passive voice of the past tense
subject+was/were+done+by+object
【课堂小结】
—How was tea invented
—It was invented by Shen Nong by chance.
—When was tea brought to Korea
—It is believed that tea was brought to Korea during the 6th and 7th centuries.
【课堂小结】
—Do you know how potato chips were invented
—Patato chips were invented by a cook called George Crum. They were invented in1853.
—Lily and Marry were invited.
—You were invited, too, weren’t you
【课堂小结】
作业 Homework
After class, please remember to find more inventions and introduce them to us by using the passive voice of the past tense in the next class.