初三英语人教版Unit-5-What-are-the-shirts-made-of-3课件.pptx

1、Unit 5 What are the shirts made of?Period 3年年 级：九年级级：九年级 学学 科：英语（人教版）科：英语（人教版）Learning goalsAt the end of this period,you will be able to:1.know what passive voice is,how to form it,and how to change active voice into passive voice;2.use passive voice with present tense correctly in the context.Warm

2、-upListen to a piece of music and find out the active voice and passive voice used in the lyrics.Listen and identify.I sing the song.The song is sung by me.You play the song.The song is played by you.He plays the drums.The drums are played by him.She sings the song.The song is sung by her.It sings t

3、he song.The song is sung by it.We sing the song.The song is sung by us.You play the song.The song is played by you.They play the drums.The drums are played by them.Think and explore.What is voice?Voice refers to the“who”or“what”that is doing the verbs action in a sentence.There are two types of voic

4、e:Active Voice and Passive Voice.Think and explore.Active Voice means the subject is doing the action.Passive Voice means the subject is receiving the action.What is Active Voice?What is Passive Voice?Think and explore.By looking at the subject.Is the subject performing the action or receiving the a

5、ction?How can we find out whether a sentence is in Active Voice or Passive Voice?Think and explore.Example:People grow tea in Hangzhou.subject verbThe subject(people)does the action(grow tea).Active Voice:Think and explore.Example:Tea is grown(by people)in Hangzhou.subject verbThe subject(tea)does n

6、ot do the action.Instead,it“receives”this action performed by people.Passive Voice:Read and identify.Read the lyrics in your worksheets and find out the Active Voice and Passive Voice.Active Voice Passive Voice I sing the song.The song is sung by me.He plays the drums.The drums are played by him.We

7、sing the song.The song is sung by us.Observe and summarize.How can we change the Active Voice into Passive Voice?1.I sing the song.The song is sung by me.2.He plays the drums.The drums are played by him.(Active Voice)(Passive Voice)(Active Voice)(Passive Voice)Observe and summarize.Step 1：Identify t

8、he subject,the verb,and the object.I sing the song.(Active Voice)subjectobjectverbObserve and summarize.Step 2：Move the object to become the new subject of the sentence.The songI sing the song.subjectobjectverb(Active Voice)Observe and summarize.sStep 3：Check what the verb tense is in the active sen

9、tence.The songI sing the song.(Active Voice)subjectobjectverbObserve and summarize.sStep 4：Conjugate the verb“be”.The song is 使动词使动词bebe根据根据人称、数人称、数和和时态时态变化变化 I sing the song.(Active Voice)subjectobjectverbObserve and summarize.sStep 5：Add the past participle of the main verb after“be”.is sung The s

10、ongI sing the song.(Active Voice)subjectobjectverbObserve and summarize.sStep 6：Decide what to do with subject of the active sentence.is sung by me.(Passive Voice)The songI sing the song.(Active Voice)subjectobjectverbPractice time Mechanics fix cars.subjectverbobject(Active Voice)Cars are fixedby m

11、echanics.(Passive Voice)1.Practice time2.The gardener waters the flower.(Active Voice)subjectverbobjectThe flower is watered by the gardener.(Passive Voice)Practice time3.Police officers catch thieves.(Active Voice)subjectverbobjectThieves are caught by police officers.(Passive Voice)Practice time4.

12、The boy gives flowers to the girl.(Active Voice)subjectverbdirect objectThe girl is given flowers(Passive Voice)indirect objectby the boy.Flowers are given to the girl by the boy.Practice time5.Jane does not clean the house.(Active Voice)subjectverbobjectThe houseis not cleanedby Jane.(Passive Voice

13、)Practice time6.Does John pick you up?(Active Voice)phrasal verb objectsubjectAreyoupicked upby John?(Passive Voice)Observe and summarize.Read the following sentences,can you summarize the structure of Passive Voice with Present Tense?1.Cars are fixed by mechanics.2.The flower is watered by the gard

14、ener.3.Thieves are caught by police officers.4.The house is not cleaned by Jane.5.Are you picked up by John?Summary被动语态的构成被动语态的构成被动语态由“助动词助动词be+及物动词的过去分词及物动词的过去分词”构成。助动助动词词be有人称、数和时态的变化有人称、数和时态的变化，其变化规则与be作为连系动词时完全一样。现以动词ask为例，将一般现在时被动语态的肯定式、否定式和一般疑问式列表如下：Summary 肯定式肯定式 否定式否定式 一般疑问式一般疑问式I am asked H

15、e/She is asked We/You/They areasked I am not asked He/She is not asked We/You/They arenot asked Am I asked?Is he/she asked?Are we/you/they asked?一般现在时被动语态的肯定式、否定式和一般疑问式：一般现在时被动语态的肯定式、否定式和一般疑问式：Watch and take notes.Why do we use Passive Voice?Take notes.Why do we use Passive Voice?There are three mai

16、n reasons to use Passive Voice.e.g.His wallet was stolen.1)The subject is unknown.Take notes.Why do we use Passive Voice?There are three main reasons to use Passive Voice.e.g.Peter was not chosen for the football team.This soap is used for dry skin.2)To emphasize the object.Take notes.Why do we use

17、Passive Voice?There are three main reasons to use Passive Voice.e.g.The baby was born yesterday.The thief was arrested last night.3)The subject is obvious from the context.Language in use4aComplete the sentences with the correct forms of the verbs in brackets.(Page 36)1.Children under 18 (not allow)

18、to watch this show without their parents.2.We (pay)by the boss on the last Friday of each month.are not allowedare paidLanguage in use4aComplete the sentences with the correct forms of the verbs in brackets.(Page 36)3.A:What language (speak)in Germany?B:Most people speak German,but many can speak En

19、glish,too.4.Most of the earths surface (cover)by water.5.The classroom (clean)by the students every day.is spokenis covered is cleanedLanguage in use4b1.Farmers plant the tea on the sides of mountains.2.This shop uses the best materials to make dresses.The tea is planted on the sides of mountains by

20、 farmers.The best materials are used by this shop to make dresses.Rewrite the sentences using the passive voice.(Page 36)Language in use4bRewrite the sentences using the passive voice.(Page 36)3.Careless driving causes many traffic accidents.5.Our family does not use this silver plate very often.Man

21、y traffic accidents are caused by careless driving.Letters and postcards are brought to peoples homes by the postman.4.The postman brings letters and postcards to peoples homes.This silver plate is not used very often by our family.Language in useSelf Check1.List some things you use every day.Write

22、down what they are made of/from and where they were made.ThingsMade of/fromMade in pencilwoodShanghaiT-shirtcottonBeijingkitessilk or paperShandong(Page 40)Language in useSelf Check2.Use the information above to write full sentences.The pencil is made of wood,and it was made in Shanghai.ThingsMade o

23、f/fromMade in pencilwoodShanghaiLanguage in useSelf Check2.Use the information above to write full sentences.My T-shirt is made of cotton,and it was made in Beijing.ThingsMade of/fromMade in T-shirtcottonBeijingLanguage in useSelf Check2.Use the information above to write full sentences.The kites ar

24、e made of silk or paper,and they were made in Shandong.ThingsMade of/fromMade in kitessilk or paperShandongLanguage in useSelf Check2.Use the information above to write full sentences.ThingsMade of/fromMade in Language in useWhat is the product?1.What is it made of?2.Who is it made by?3.Where is it

25、made?4.What can it do?5.Why is it special?Write a passage about one of the special things that your town/city is famous for.Language in useWhat is the product?1.What is it made of?2.Who is it made by?3.Where is it made?4.What can it do?5.Why is it special?Write a passage about one of the special thi

26、ngs that your town/city is famous for.pure silkthe silk quiltskillful workers in factoriesSuzhoukeep you warm and comfortablelight and soft to touch;decorated with beautiful patterns Language in useComplete your writing.My city,Suzhou,is famous for its silk quilts.Many people from all over the world

27、 come to Suzhou to visit the silk factories and buy not only the silk quits but many other silk products,too.Language in useRead the sample writing.My city,Suzhou,is famous for its silk quilts.These quilts are made of pure silk.They are made by skillful workers in many silk factories.The silk quilts

28、 are used to keep people warm and comfortable in bed.They are known to be very comfortable because they are light and soft to touch.Besides,they look beautiful as they are decorated with beautiful patterns.Many people from all over the world come to Suzhou to visit the silk factories and buy not onl

29、y the silk quilts but many other silk products,too.Self check1.Do you know what passive voice is,how to form it,and how to change the active voice into passive voice?2.Can you use passive voice with present tense correctly in the context?Homework1.Complete the exercises on your worksheets.2.Use passive voice to introduce a special thing that your town/city is famous for.Rome was not built in a day.Practice makes perfect!