Unit 2 Wildlife Protection Discovering Useful Structures 课件(共35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35张PPT)-人教版(2019)必修第二册

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(共35张PPT)
Unit2
Wildlife Protection
The Present Continuous Passive Voice
现在进行时的被动语态
人教版2019必修第二册
Learning objectives:
At the end of this lesson, students are able to:
1. Learn the structure, different forms and usage of the present continuous passive voice.
2. Accumulate some words and expressions while translating.
3. Describe a real scene that happened in our daily life by 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
Review
What is present continuous tense?
(现在进行时)
现在进行时的构成: _______________________________________________
be (am/is /are) doing
Review
What is the passive voice?
语态
主动语态
被动语态
“不好了,老师批评人了”
“谁要被老师批评了?”
强调动作执行者
强调动作承受者
The whales __________(kill) by
human beings.
were killed
The rhino ____________ (hunt) by someone.
was hunted
Review: the passive voice
被动语态的基本构成:
_________________
be + done(过去分词) (by)
Review
Why we should learn passive voice
用法 例句
不知道或者不需要知道 动作的执行者 The book was published in 2005.
强调动作的承受者 School will be opened in our town.
当动作的执行者是泛指时 He is suspected(怀疑) of robbing the bank.
表示委婉或礼貌,避免 提及动作执行者时 I have been told many times not to make noises.
句法修饰需要 The book will be written by Joe, who is a young famous writer from France.
某些动词习惯需要使用被动 He was born in this city.
present continuous 现在进行时
What is the dog doing
--It is biting a person.
--此刻/现阶段正在进行的动作
structure:
主语 + am/is/are (not) doing +其他
passive voice 被动语态
What happened to the person
--He is bitten by a dog.
--主语是动作的承受者而非发出者
structure:
主语 + be (not) done +(by) 其他
Present continuous passive voice
现在进行时的被动语态
What can you see from this picture
--一个人正被狗咬。
现在进行
+ 被动语态
A person is being bitten by a dog.
Definition
The present continuous passive voice
Human beings are hunting African elephants.
African elephants _______________ by human beings.
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中。
are being hunted
(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
观察总结:现在进行时的被动语态
结构
Complement
16 different kinds of tense
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


Presentation
Our planet’s wildlife is dying out at an alarming rate.
Between 150 and 200 species are becoming extinct every day.
African elephants are being hunted.
Much is being done to protect wildlife.
What is being done to help them
What measures are being taken to help them
What are the words in red used for
The words in red are used for describe ________________.
sth is happening
(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.(P18)
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?
现在进行时被动语态
(the present continuous passive voice)
形式 结构
肯定形式 主语+be+being+done
否定形式 主语+be+not+being+done
一般疑问句 be+主语十being+done
特殊疑问句 特殊疑问词+be十主语+being+done
现在进行时的被动语态的构成形式:
Basic usage 基本用法
1. 表示说话时正在进行的被动动作,句中常用now, right now/away, at present, at the moment(时刻), look,listen等时间状语连用。
She (examine) by the doctor now.
Look! The children (care) for by their aunt.
看! 孩子们正由他们姑妈照顾。
她现在正在接受医生的检查。
is being examined
are being cared
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。
The problem of food safety _______________(study) by scientists these days.
is being studied
表示现阶段正在进行的被动动作(说话时不一定在进行)。
这些动物被猎杀的速度如此之快,它们很快就会消失。
These animals are being hunted at such a high speed that they will disappear soon.
这些天许多有趣的实验正在进行。
Many interesting experiments are being done these days.
3.表示一种习惯的被动行为(often, always, frequently, constantly ),提示词:always;often;constantly(adv.
总是,经常地),带有赞扬、羡慕、抱怨,讨厌等感彩。
Children of our neighbors ___ always ____________ (praise) by our parents.
are being praised
3.表示一种经常性的被动行为,常与always, constantly, often等词连用,含有赞赏,羡慕,讨厌等感彩。
我感到非常吃惊的是我们教室的窗户经常被打破。
I feel very surprised that the window of our classroom is often being broken.
I don't understand why my bike is always being stolen.
我不明白为什么我的自行车总是被偷。
1. My washing machine___ this week, so I have to wash my clothes by hand.
A. was repaired B. is repaired
C. is being repaired D. has been repaired
2. They are living with their parents for the moment because their own house_____________(rebuild).
is being rebuilt
Practice
3. A new building _______________(build) outside our school now.
4. Look. A boy ____________________(attack) by a dog.
5. At present, a survey about students’ after-school activities _______________ (carry out) by our school.
6. To the teacher's anger, the useless questions ____always ____________ (ask) by this student.
7. Since your bike__________________(repair), you can use mine.
is being built
is being attacked
is being carried out
is being repaired
being asked
are
Choose the suitable verb forms to complete the sentences.(P18)
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.
如果把being漏掉,就成为了一般现在时的被动语态或系表结构
Attention
1.不可遗漏being
The children are being taken care of by their aunt.
瞧!孩子们现在正由姑母照看着。
Children are taken good care of at school.
孩子们在校被照看得很好。(一般现在时被动语态)
The report is being written by one of the best students.
报告正在由一个最好的学生写着呢。
The report is well written.报告写得很好。(系表结构)
2.部分介词短语介词不可省略
Look! The baby is being taken care by her aunt.
of
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
This topic is now being talked about.
这个话题正在被讨论。
3.部分动词无进行时的被动语态
阅读句子,指出其错误。
Mary, come here. You're being wanted on the phone.
Mary, come here. You're wanted on the phone.
一些表示状态、心理活动、拥有、存在等的动词,
如have,want, need, like,realize等,一般没有进行时的被动语态,而常用一般现在时的被动语态表示此时此刻或目前主语正在承受谓语动词表示的动作。

4.其他形式表示被动语态
The telephone is in use( =is being used) now.
电话正在使用中。
“be+under/in 等介词十名词”结构可代替现在进行时的被动语态。
The city is under attack( =is being attacked) at the moment.
目前这个城市正受到进攻。
Summary
现在进行时被动语态
[过基础 知识巩固]
维度一 单句语法填空
1.At the moment, a lot of activities __________________(hold) online to celebrate the New Year.
2.You can’t use the machine today because some parts __________________(replace) this week.
3.I have to go to work by taxi because my car ______________(repair) at the garage.
are being held
are being replaced
is being repaired
4.At present, lots of food, water, tents and medicine __________________(transport) from all over the country to the flooded area.
5.A lecture on how to learn English __________________(give) by Professor Wang from Shandong University now. 
6.Look! The problem about air pollution __________________(discuss) by the experts at the meeting right now.
7.The Amazon Rainforest __________________(destroy) at an alarming rate and we humans really need to work together to protect it right now.
are being transported
is being given
is being discussed
is being destroyed
8.Right now, the details of the school sports meeting __________________ (work out) by the PE teachers.
9.It is reported that many a new house __________________(build) at present in the flood stricken area.
10.With more and more forests being destroyed, quantities of good earth __________________(wash) away each year.
are being worked out
is being built
are being washed
Practice
2. 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 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 part__________________(cover) with new houses. You can see rubbish everywhere. The wetland ________________ (pollute) seriously every day. I am very woried about it. What can we do
are being caught
are being sold
are being killed
is being destroyed
is being polluted
are being covered
practice
3. 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
practice
3. 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
Thank you!

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