资源简介

(共14张PPT)
unit 2 wildlife protection
discovering useful structures
1. She went for a walk with her mom.
2. The book was written by Lu Xun.
3. We change our way of life and learn to live in harmony with nature.
4. The classrooms are cleaned by the students every day.
5. Can I borrow the book from you
6. This maths problem can be worked out by little Tom.
一般过去、主动
一般过去、被动
一般现在、主动
一般现在、被动
一般现在、主动
一般现在、被动
判断下面句子的时态和语态
1. The book was written by Lu Xun.
2. The classrooms are cleaned by the students every day.
3. This maths problem can be worked out by little Tom.
被动语态的构成
被动语态的构成：主语+ be(am/is/was/are/were) +done
现在进行时的被动语态
1.What measures are being taken to help them
2.African elephants are being hunted.
3.Much is being done to protect wildlife.
4.What is being done to help them
am/is/are＋being＋done
1.It is reported that many a new house is being built at present in the disaster area.
2.The plan is not being discussed at the meeting now.
3.Is the house you bought last month being decorated now
4.What is being done to the machine
1．现在进行时的被动语态肯定形式为:主语+ _______________
2．现在进行时的被动语态否定形式为:主语+ __________________
3．现在进行时的被动语态的一般疑问句式为：________________
4．现在进行时的被动语态的特殊疑问句式为：________________
is/am/are being done
is/am/are not being done
is/am/are＋主语＋being done
疑问词＋is/am/are+主语＋being done
观察例句 归纳用法
形式 结构
肯定式 主语＋am/is/are＋being done.
否定式 主语＋am/is/are not＋being done.
一般疑问式 Am/Is/Are＋主语＋being done？
特殊疑问式 疑问词＋am/is/are＋主语+being done？
现在进行时的被动语态构成
原句：They are building a modern school in his hometown.
1.A modern school ___________in his hometown.(改为被动语态)
2.A modern school _____________in his hometown.(改为否定句)
3.__________________________ in his hometown？(改为一般疑问句)
4.________________________________？(对句中的in his hometown进行提问)
Where is a modern school being built
is being built
isn't being built
Is a modern school being built
即时训练1
8
is being discussed
being praised
is being made
即时训练2　
9
is under discussion/is being discussed
are wanted
即时训练3　
am being treated
is being typed
are being done
达标检测　
are being done
is being repaired
is being rebuilt
are being cooked
二.单项选择
(　　)1.The church tower which ________ will be open to tourists soon.The work is almost finished.
A．restored　 B．to be restored
C．is being restored　 D．being restored
(　　) 2.The giant machine ________ apart at the moment and it will be fixed up in the new workshop in the near future.
A．taken　 B．has been taken
C．being taken　 D．is being taken
(　　) 3.But now that information ________ and monitored in different ways.
A．to be spread　 B．is being spread
C．spread　 D．spreading
C
D
B
(　　)4.Daisy has found that a lot of antelopes ________ and killed for the wool beneath their stomachs now.
A．to be hunted　 B．are being hunted
C．hunting　 D．are hunting
(　　)5.Since your bike is ________ repair, you can use mine.
A．under　 B．on　　 C．with　 D．After
(　　)6.Many interesting experiments ________ out these days.
A．carried　 B．is carrying
C．to be carried　 D．are being carried
(　　)7.Look! The children ________ a snowman in the yard now.
A．making　 B．are to be made
C．are making　 D．are being made
B
A
D
C
三、Exercises 3 on P 18 in the text book.
In the wetland of my hometown，there are many different kinds of animals, including wildbirds, fish, snakes, insects and so on. When I was in primary school, I often went there with my friends to watch the birds and study them. That was an interesting place for all of us. But things have begun to change in recent years. Small birds_________________(catch) with nets. Wild ducks _______________ (sell) at food markets. Fish and snakes _______________ (kill) for food in restaurants. And even worse, the wetland___________________ (destroy). Some parts _______________ (cover) with new houses. You can see rubbish everywhere.The wetland _______________ (pollute) seriously every day. I am very worried about it. What can we do
are being caught
are being sold
are being killed
is being destroyed
are being covered
is being polluted

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