人教版九年级全一册 Unit 5 What are the shirts made of？课件 (共15张PPT)

(共15张PPT)
课题：Unit 5 What are the shirts made of 九年级英语-全一册-unit 5难点名称：能正确使用一般现在时的被动语态，学会描述产品由什么材料制成，在哪制造。目录CONTENTS2. What did he do
He is Cai Lun (蔡伦)
He improved(改进了) paper making（造纸术） .
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1. Who is he, do you know him
In the past ,books were made of bamboo.
在过去，书籍是由竹子制成的。
What are they What are they made of
They are books, ancient (古代的)books.
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Today , books are made of paper.
现在，书籍是由纸制成的。
3. What are books made of now
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一般现在时态的被动语态（passive voice）
英语中有主动(active voice)和被动(passive voice)两种语态。（类似于汉语中的 “把”字句和“被” 字句）.
Many people speak Chinese.
Chinese is spoken by many people.
(1)在主动语态中，主语是动作的执行者。
(2)在被动语态中，主语是动作的承受者。
知识讲解
难点突破
动词的过去分词的构成
1.在动词原形后加-ed 如：work →worked
2.以辅音字母加y的动词，变y为i加-ed
如： carry-carried study-studied
3.以e结尾的动词直接加-d。live-lived
4.以重读闭音节结尾且末尾只有一个辅音字母的词，双写该辅音字母再加-ed.
如： stop-stopped plan-planned
5.不规则的变化规则也是有规律可循的.
知识讲解
难点突破
Linda waters the flowers every day.
every day.
Mary buys a book every week.
every week.
A book
is bought
by Mary
The flowers
are watered
by Linda
知识讲解
难点突破
be made of 由 ... 制成
be made in 在…制造/生产 (后产地)
The chair is made of bamboo.
The bread is made in China.
知识讲解
难点突破
Books are made of paper.
Paper is made from wood.
Compare the two sentences, what are the differences between them 比较两个句子的区别
知识讲解
难点突破
知识总结与拓展
1). be made of 表示“由…制成”, 一般指能够看出原材料
This armchair is made of bamboo.
2). be made from也表“由…制成”，一般看不出原材料
Paper is made from wood.
3).be made in 在…制造/生产 后接动作的发生地（即产地）
The box is made in China。
4). be made by sb. 表示由某人制成.后接动作的执行者。
The dumplings are made by my mother.
5). be made into 被制成为…，后接成品
This piece of wood will be made into a small bench.
知识讲解
难点突破
1.The workers make the bikes in the factory.
3.The bikes the workers.
2.The bikes the factory.
4. The bikes are made by the workers in the factory
are made in
are made by
课堂练习
难点巩固
1,许多人被邀请参加这次的活动。(invite)
2,需要更多的钱来支持这项工作。 (support)
3, 在贫困地区，每年很多学校被建起来。
4，电脑被年轻人广泛地使用。
Many people are invited to attend the activity.
More money is needed to support the work.
Many schools are built in poor areas every year.
Computers are widely used by young people.
课堂练习
难点巩固
小结
此处再次按下暂停键，由学生来进行概括总结：
被动语态的基本结构
Be动词 +及物动词的过去分词
即：be+ done
注意：
被动语态中的实意动词必须是及物动词。
Thank you for listening!