高中英语外研版（2019）选择性必修第四册Unit2 Lessons in life- Using Language课件（20张PPT）

(共20张PPT)
Using language P17
新外研选择性必修Book 4
Unit 2 Lessons in life
A: The bird is eating worms.
B: How can you change the sentence into passive voice
A: Worms are being eaten by the bird!
Look at the dialogue and complete the sentences.
Lead-in
1. The car _________________.
汽车正在修理。
2. The early worm ___________by a bird.
早起的虫被鸟吃。
3. He ______________ many times to behave himself.
他多次被告知要守规矩。
is being repaired
was eaten
has been told
Passive Voice
被动语态
Summary
一. 定义：被动语态是动词的一种特殊形式，用以说明主语和谓语动词之间的关系，表示主语是动作的承受者。一般情况下，只有需要动作对象的及物动词才有被动语态。
二. 构成：助动词be+及物动词的过去分词
The active voice in different tenses The passive voice in different tenses
... do
...did
...will do
...be doing
...verb (modal ) do
...have/has done
...had done
...will have done
... be (is/am/are) done
... be (was/ were) done
... will be done
... be being done
... verb (modal) be done
... have/ has been done
... had been done
... will have been done
三. 主动语态到被动语态的转换
四. 主动语态变被动语态的注意事项
1. 时态保持一致
例句:
The teacher has punished him many times for his lateness.
He has been punished many times for his lateness.
2. 谓语为动词短语的被动语态不能丢掉动词短语的介词或副词。
例句：
His best friend often looks after him.
He is often looked after by his best friend.
3. 主动语态中若有双宾语，将其中一个宾语变为被动句的主语，另一个宾语不变。
例句：
Vivian gave me a book.
I was given a book by Vivian.
A book was given to me by Vivian.
4. 主动语态若有复合宾语，将主动句的宾语变为被动句的主语，宾语补足语不变。
例句：
They call him Louis.
He is called Louis.
5. 主动语态句中有make, have, let, notice, see, watch, look at等动词时，变成被动语态时，后面的不定式需要加上to。
例句：
Mr Lee made him wash the dishes.
He was made to wash the dishes by Mr Lee.
6. 有些动词（短语）不能用于被动语态，take place / happen / come true / break down...
例句：
All your dreams will come true if you try your best.
1. John ___________ (elect) president of the class.
2. Smoking _______________ (not allow) in public places in China.
3. Oh, my god! Our house _______________ (break) into last night. Look at the footprints on the floor.
4. They can go home as soon as the homework _____________ (finish).
5. The reason why I haven’t moved into the new flat is that it _________________ (repair).
随堂练
was elected
isn’t allowed
was broken
is finished
is being repaired
Look at the sentences from the reading passage and match them to the reasons why the passive voice is used.
a. On discovering that Morrie is being weakened by a sever illness,...
2. The focus of the sentence is on the recipient of the action, not on the subject of the sentence.
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Practice
b. ... Tuesdays with Morrie is just made up of a collection of over-emotional thoughts and messages, ...
3. The subject goes with lengthy expressions that are better put at the end.
c. A box of tissues will be needed to get through this book!
1. The subject is not known, is unimportant, or is “people in general” and can be omitted.
Rewrite the paragraph using the passive voice where appropriate.
Since ancient times, storytelling has been a way to share and pass on wisdom. One important early work that did so was Aesop’s Fables, 1.a collection of stories that history credits to Aesop, a Greek storyteller. 2. People believe that he lived in Ancient Greece between 620 BC and 564 BC. Most of the characters in his stories are animals, 3. the qualities of which Aesop used to reflect human traits and wisdom. 4. Each fable teaches a life lesson that Aesop summarises in a short phrase at the end of the story, called a moral.5. Today, children and adults all around the world still enjoy Aesop’s Fables.
2
Rewrite:
Since ancient times, storytelling has been a way to share and pass on wisdom. One important early work that did so was Aesop’s Fables, 1. a collection of stories that is credited to Aesop, a Greek storyteller. 2. It is believed that Aesop lived in Ancient Greece between 620 BC and 564 BC. Most of the characters in his stories are animals, 3. the qualities of which were used to reflect human traits and wisdom by Aesop. 4. Each fable teaches a life lesson that is summarised in a short phrase at the end of the story, called a moral. 5. Today, Aesop’s Fables is still enjoyed by children and adults all around the world.
Look at the pictures and write the story from Aesop’s Fables. Use the passive voice where appropriate.
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3
One day a little mouse was caught by a lion. The lion wanted to eat the mouse, but the mouse said that he would help the lion someday, if he was let to go.
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The lion thought, “How can a great animal be helped by a little animal ” But the mouse was allowed to leave.
3
Several days later, the lion was caught by a hunter’s net. The mouse bit the net with his strong teeth and helped the lion out.
4
Thanks to the little mouse, the lion was saved and finally admitted that the strong could sometimes be helped by the weak.
Work in pairs. Tell each other another fable you know and the lesson you have learnt from it. Use the passive voice where appropriate.
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Share the fable you know ...
Thank you!