Unit 2 Wildlife Protection Discovering useful structures 课件(共23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23张PPT)人教版(2019)必修第二册

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(共23张PPT)
Unit 2 Wildlife Protection
Discovering Useful Structures
Learning objectives
By the end of this section, you will be able to:
Identify the present continuous passive voice and summarise the form and function of the present continuous passive voice;
Apply the present continuous passive voice to describe the ongoing events;
Make a speech to speak up for the endangered wildlife using the present continuous passive voice
What are they doing in the picture
The polar bear .
The panda bamboo.
The elephant sports.
is swimming
is doing
is eating
the present continuous tense
Review
The whales __________(kill) by
human beings.
are killed
The rhino ____________ (hunt) by someone.
is hunted
the passive voice
Review
What kind of tense do the dialogue use
现在进行时的被动语态
The basic structure of 16 different tenses 一般 进行 完成 完成进行
现在 do/does be doing have/has done have/has been doing
过去 did was/were doing had done had been doing
将来 will/shall do will/shall be doing will/shall have done will/shall have been doing
过去将来 would/should do would/should be doing would/should have done would/should have been doing


(3) What measures are being taken to help them
(2) What is being done to help them
(1) African elephants are being hunted.
Underline the present continuous passive voice in the sentences and discuss its function.
定义:表示“某人/事此时此刻正在被…”,主语是动作的承受者, 表示说话时或现阶段某个被动的动作正在进行。
Function: describe actions that are happening at the present moment
非洲象正在被猎杀。
为了帮助他们,什么正在被做
什么措施正在被用来帮助他们?
Find more sentences with the present continuous passive voice in this unit.
I know that they are being hunted and their habitat is getting smaller...
What measures are being taken
They are being hunted, illegally, for their valuable fur.
Much is being done to protect wildlife.
These large animals are being killed.
(时态和语态结合,先体现时态,后体现语态)
现在进行时:am/is/are + V-ing
被动语态: be + done(V过去分词)
现在进行时的被动语态:主语 + am/is/are + being + done + (by…)
表进行
表被动
结构
现在进行时被动语态(the present continuous passive voice)
Observe the pictures and state what the persons are doing. Then change the sentences you said into passive voice.
1. The workers are building the houses.
→The houses are being built by the workers.
2. Someone is hunting an African elephant.
→An African elephant is being hunted (by someone).
3. He is feeding a Tibetan antelope.
→A Tibetan antelope is being fed (by him).
4. People are protecting pandas in Wolong Natural Reserve.
→Pandas are being protected in Wolong Natural Reserve.
1
2
3
4
句型转换
They are building a modern school in his hometown.
①A modern school __________________in his hometown. (改为被动语态)
②A modern school _________________in his hometown. (把句①改为否定句)
③___________________________in his hometown?(把句①改为一般疑问句)
④____________________________________(对句①就in his hometown进行提问)
Where is a modern school being built?
Is a modern school being built
isn’t being built
is being built
肯定句 主语+be(am/is/are) +being done
否定句 主语+be(am/is/are) +not+ being done
一般疑问句 be(am/is/are) +主语+being done
特殊疑问句 特殊疑问词+be(am/is/are) +主语+being done
1. My house is being painted now.
2. Look! The baby is being examined by the doctor now.
3. Some animals are being protected well enough now.
1. 表示说话时正在进行的被动动作,句中常用now, at present,
right now/away, at the moment, look, listen等时间状语连用。
现在进行时被动语态de基本用法
1. The problem of food safety is being studied by scientists these days.
2. These animals are being hunted at such a speed that they will disappear soon.
现在进行时被动语态de基本用法
2. 表示现阶段正在进行的被动动作(说话时不一定在进行),句中常用at present, these days,these weeks等时间状语。
1. I don't understand why my bike is often being stolen.
2. I feel very surprised that the window of our classroom
is often being broken.
现在进行时被动语态de基本用法
3.表示一种习惯的被动行为, 提示词:often, always, frequently, constantly, 带有赞扬、羡慕、抱怨,讨厌等感彩。
1. A birthday party is being held tonight.
2. The event isn’t being taken place as scheduled.
3. Some rock music is being played by them next.
现在进行时被动语态de基本用法
4.有时可表示按计划或安排将要进行的被动动作(此种用法仅限于少数及物动词, 如: hold、take、build、plan等)。
现在进行时被动语态de基本用法
“be+under/in等介词十名词”结构可用来表示现在进行时的被动语态的含义
1. The telephone is in use(=is being used) now.
2. The city is under attack(=is being attacked) at the moment.
Look at the pictures and try to complete the sentences.
Nowadays, environment is get worse. Rivers and ocean _________________ (pollute) by factories. Thousands of trees _________________ (cut down) for making paper or building houses. What’s worse, a great number of wild animals ________________ (kill) for fur or meat.
are being polluted
are being cut down
are being killed
Look at the pictures and try to complete the sentences.
Luckily, we are aware of this. Laws ____________(set up) to for environmental protection. Rubbish in the rivers _______________ (collect) and the factories that pollute the rivers _______________ (punish). Wildlife reserves ______________ (build) for endangered animals.
are being set up
is being collected
are being punished
are being built
现在进行时被动语态de注意事项
(1) 在现在进行时的被动语态中,be (am/is/are)为第一助动词,being为第二助动词,二者缺一不可,且不可互换位置。
The laws being revised to protect the rights of women and children better.
The laws are being revised to protect the rights of women and children better.
法律正在被修订以便更好地保障妇女和儿童的权利。
现在进行时被动语态de注意事项
(2) 部分介词短语介词不可省略
take care of, look after, talk about, think of 等动词与介词构成的短语用于现在进行时的被动语态时,其中的介词不可省略
1. Look!The children are being taken care by their aunt.
瞧!那些孩子正由他们的姨妈照看着。
2. This topic is now being talked about.
这个话题正在被讨论。
of
现在进行时被动语态de注意事项
(3) 不及物动词(短语)非持续性动词表示存在意义/所属关系/静态特征的动词以及系动词不用于现在进行时的被动语态。
这本书是他的。
The book belongs to him.
The book is being belonged to him.
Choose the suitable verb forms to complete the sentences.
1. I’m (working / being worked) at home today because my office is (painted / being painted).
2. The alarming report is (written / being written). It will be finished soon.
3. What part of the city is (attacked / being attacked) now
4. Right now, the deer are (watched / being watched) over by many volunteers.
5. Who is (hunting / being hunted) the kangaroos Where are they (hunted / being hunted)
6. It is reported that living spaces for wildlife are (reduced / being reduced) due to the cutting of trees.
Liu Tao would like to express his concern over the wetland in his hometown. Help him finish the passage with the present continuous passive voice of the verbs in brackets.
In the wetland of my hometown, there are many different kinds of animals, including wild birds, 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 thing 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 restaurant. 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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