Unit 2 Wildlife Protection Discovering useful structures 课件(共42张PPT)人教版(2019)必修第二册

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Unit 2 Wildlife Protection Discovering useful structures 课件(共42张PPT)人教版(2019)必修第二册

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(共42张PPT)
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Unit 2 Wildlife Protection
Grammar
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Step one: Revision of the Passive Voice
Every year over 29,000 antelopes ________ (kill) in Tibet.
--- 一般现在时的被动语态
2. In the past, the elephants __________ (hunt) by farmers.
--- 一般过去时的被动语态
are killed
were hunted
3. In the past twenty years, a large number of bamboo areas ____________ (set) up to help pandas grow.
--- 现在完成时的被动语态
have been set
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4. WWF hopes that more and more wild animals _______________ (protect) in the future.
will be protected
--- 一般将来时的被动语态
5. By the end of last year, some forests
_________________(destroy) by local farmers.
had been destroyed
--- 过去完成时的被动语态
6. The plant must __________(water) every two
days.
be watered
--- 情态动词的被动语态
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表格:被动态基本结构
时态 被动语态结构
一般现在时
一般过去时
一般将来时
过去将来时
现在完成时
过去完成时
am/is/are done
was/were done
shall/will be done
would be done
have/has been done
had been done
被动语态be字变,过去分词跟后面。
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二. 现在进行时的被动语态。
1. 从课文中找出以下句子并补充完整。(Page26)
1) We ______________ for the wool beneath
our stomachs. (Line9)
2) Our fur ___________ to make sweaters for
people like you. (L10)
3) I wonder what ___________ to help you. (L12)
4) Daisy turned around and found that she
_________________ by an elephant. (L15)
5) So good things _____________ here to save
local wildlife. (L25)
are being killed
is being used
is being done
was being watched
are being used
现在进行时的被动语态:am/ is/ are being done
过去进行时的被动语态:was/ were being done
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1) 表示说话时正在进行的被动动作, 强调主语是动作
的承受者。
Look! The baby ____________(take) care
of by her aunt.
2) 表示现阶段正在进行的被动动作。但此时此刻不一
定在进行的被动动作。
A new building ____________ ( build) outside
our school.
2. 现在进行时被动语态的用法
is being taken
is being built
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She’s made rapid progress recently and
__always ____________( praise) by the teachers.
She said that the silly questions _____ always
___________( ask) by the man.
3) 现在进行时、过去进行时被动语态与always , all the
time等词连用时,表示经常性的被动动作,此时往
往带有赞赏或厌恶等感彩。
is
being praised
were
being asked
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The telephone is in use now.
= The telephone __ _____ ____ now.
4) 有些“介词+名词”结构可以表示现在进行时的被动意
义。请记住下列短语:on show; in use; under protection; under repair; under discussion; underresearch; under consideration; under development等。
is being used
The problem is being discussed at the meeting now.
= The problem __ _____ _________ at the meeting
now.
is under discussion
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3. 现在进行时被动语态的否定和疑问。
肯定:The bridge ________________ (repair) now.
否定:The bridge ________________________
(not repair) now.
一般疑问:__ the bridge _____________(repair)
now
is being repaired
isn’t/ is not being repaired
Is
being repaired
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三. 进行时的被动语态专练。
1. 用动词的正确形式填空。
1) As you can see, many trees ____________(cut)
down by humans now.
2) Look, The river _______________(pollute) by the
waste from the factory, which is producing
some chemicals(化学品).
5) Look, many trees ________________(plant) by
students over there.
are being cut
is being polluted
are being planted
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2. 请把下列句子由主动语态改为被动语态:
1) Human beings are killing us for the wool
beneath our stomachs.
2) Now, the government is taking good measures
to save the endangered wild animals.
We are being killed for the wool beneath our
stomachs by human beings.
Now, good measures are being taken to save
the endangered animals by the government.
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2. 请把下列句子由主动语态改为被动语态:
3) Some factories are using our fur to make
sweaters.
4) What are they doing to help the wild animals in
danger of disappearing
Our fur is being used to make sweaters by
some factories.
What is being done to help the wild animals in
danger of disappearing
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四. 综合练习。
1. 用动词的正确形式填空。
1) Look! The panda ________________(watch) by
the naughty tourists, which keeps him frightened.
2) The hunter turned around and found that he
______________(bite) by a snake.
3) Paper money _____________(use) for over a
thousand years.
4) Hundreds of jobs __________(lose) if the factory
closes.
5) The number of wild animals may decrease if
their habitat ____________(threaten).
is being watched
was bitten
has been used
will be lost
is threatened
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四. 综合练习。
1. 用动词的正确形式填空。
6) Great changes have taken place in Dongguan,
and a lot of factories ____________(set) up
recently.
7) I wonder what ____________(do) to help the
wild animals now.
8) The price of a color TV set _______________
(bring) down since last month.
9) The reason for all the changes
____________________(not explain) to us yet.
10) In my opinion, more attention should
_______(pay) to the wildlife protection.
have been set
is being done
has been brought
has not been explained
be paid
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四. 综合练习。
1. 用动词的正确形式填空。
11) These books _____________(not take) out of
the library again in the future by you.
12) The water will be further polluted unless
some measures _________(take).
13) Up to now, 35 Chinese culture relics
___________(put) on World Heritage List.
14) Your experiment report ____________(type)
now and it ______________(finish) soon.
won’t be taken
are taken
have been put
is being typed
will be finished
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2. 请把下列句子由主动语态改为被动语态:
1) She is telling us an interesting story.
2) The nurse is taking good care of the patient.
We are being told an interesting story by her.
The patient is being taken good care of by the
nurse.
An interesting story is being told to us by her.
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2. 请把下列句子由主动语态改为被动语态:
3) They are not protecting some animals well
enough.
4) Now he is making the girl laugh.
Some animals are not being protected well
enough by them.
Now the girl is being made to laugh by him.
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2. 请把下列句子由主动语态改为被动语态:
5) He has bought the children many good books.
6) He has made the girl laugh.
The children have been bought many good
books by him.
The girl has been made to laugh by him.
Many good books have been bought for the
children by him.
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2. 请把下列句子由主动语态改为被动语态:
7) She will send me a book written by Shakespeare.
8) Government must take some measures to
protect the environment.
I will be sent a book written by Shakespeare by
her.
Some measures must be taken to protect the
environment by government.
A book written by Shakespeare will be sent to me
by her.
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A whale is being killed by people.
Look! What is being done
The whale isn’t being protected by people
a whale, kill,
people
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The panda is being kept in the cage.
Look! What is being done
the panda, keep,
in the cage.
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Rainforests _______________ at such a speed that they will disappear from the earth in the near future. (cut)
are being cut
As a result….
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Tigers have no places to hide and ____________ for their fur and bones. (kill)
are being killed
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1. They are decorating a Christmas tree now. 被动
A Christmas tree is being decorated now.
Some animals were not being protected well enough.
Is the bridge being repaired now
2. Some animals were being protected well enough. 否定句
3. The bridge is being repaired now. 疑问句
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are being protected,
are being discovered,
are now being studied,
are being encouraged
exercise 2 on page 64
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Answer keys to exercise 1 on page 64
I’m afraid that the road to Wolong Nature Reserve is being repaired.
How much money we should spend on endangered tigers is being discussed.
The side effects of the new drug are being researched.
The request to buy a video for each classroom is being considered.
The project to make a new home for pandas is being developed.
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Hi, I’m Alice.
This is my album. Would you like to have a look
album
Alice
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I want to show you some photos about my Christmas.
Can you describe what happens in the picture using passive voice
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It’s Dec. 24th.
On the morning , I went shopping with my
family . We arrived at a shopping mall.
My Christmas
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Outside the shopping mall at 10:00 am
A huge Christmas tree _________________
(decorate) with mini cars.
was being decorated
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Christmas presents _______________(send) to
children by a Santa.
were being sent
Outside the shopping mall at 10:00 am
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Many Christmas presents _______________ (buy)
by my parents.
From 10:00-12:00 am
were being bought
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Christmas presents _____________________
(wrap up包装) by my parents
were being wrapped
At 3 p.m
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At 5 p.m.
A Christmas card
__________________ (write)
by me.
was being written
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A wonderful Christmas dinner
_________________ (enjoy) by my family.
was being enjoyed
At 8 p. m.
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A Christmas sock _________________ (hang)
by my brother.
was being hung
At 11 p.m.
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Christmas presents _________________ (put)
under the Christmas tree by Father Christmas.
were being put
At 12:00 pm
Who is the Father Christmas
Of course it’s my father.
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We got up early and said “Merry Christmas” to
one another.
were being found
It’s Dec 25th. At 8 :00 am
A lot of Christmas presents ____________ (find)
under the Christmas tree.
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At breakfast. A photo of my family
__________________ (take).
was being taken
At 9:00 am
That’s all my story. I wish all of you a merry Christmas.
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Guilin _______________(visit) by so many tourists in the past years that some of its cultural sites ______________________ (not protect )well nowadays. Some ancient sites ________________________ (already damage) by tourists and villagers are worried that part of their history ___________(lose) in the future.
Now, a group of villagers in Guilin ____________( plan) to protect their cultural relics. They have taken the following measures in order to protect the cultural relics.). A website _______________ (start) to tell people about the problem and how to solve it. Also, a museum _____________(build) so that visitors can look at the cultural relics without ___________(cause) any damage.
has been visited
are not being protected
have already been damaged
has been started
has been built
will be lost
are planning
causing
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写作练习: 要求在适当的地方使用被动句。
注意时态的正确运用。
在过去,中国有很多的麋鹿。 然而,在过去的
四十年间,大量的麋鹿被杀了。
随着时间的过去,人们开始意识到了保护动物的
重要性。在北京,一个麋鹿公园已经被建了起来。
如今,麋鹿得到了人类的保护。因此,它的数量
在增加。
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There used to be many Milu deer in China.
However, a lot of milu deer have been killed
in the past forty years. As time goes by,
people begin to realize the importance of
protecting animals. In Beijing, a Milu deer
Park has been set up. Now, the Milu deer are
being protected by human beings.
As a result, their numbers are increasing.
在过去,中国有很多的麋鹿。 然而,在过去的
四十年间,大量的麋鹿被杀了。随着时间的过去,人们开始意识到了保护动物的重要性。在北京,一个麋鹿公园已经被建了起来。如今,麋鹿得到了人类的保护。因此,它的数量
在增加。

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