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高中英语外研版 (2019)必修 第三册Unit 3 The world of science教案配套ppt课件
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这是一份高中英语外研版 (2019)必修 第三册Unit 3 The world of science教案配套ppt课件，共49页。PPT课件主要包含了People，被动语态的使用情况，内容要点等内容，欢迎下载使用。
a. I guess yu have been asked abut the title f yur bk befre.b. New inventins like 3D printers have been used t make replacement hearts and bne parts.
What has happened t “yu” in sentence (a)?
Wh has used new inventins t make replacement hearts and bne parts in sentence (b) ?
c I guess smene has asked yu abut the title f yur bk befre.d Peple have used new inventins like 3D printers t make replacement hearts and bne parts.
present perfect active frm
present perfect passive frm
T emphasize the bject: “yu” and “new inventins”.
1. 不知道或者没有必要说明动作的执行者是谁； Such bks have been written fr children. 2. 强调动作的承受者，而不是动作的执行者； All the prducts have been tested.3. 动作的执行者很模糊; The letter has been pened.4. 有时候为了礼貌的需要，避免说出动作的执行者。 They have been tld many times nt t make nises.
Nw let’s read mre examples.
Hw many bks has J.K. Rwling written?
J.K. Rwling has written seven bks.
Seven bks have been written by Rwling.
Wrkers have built the huse since years ag.
The huse has been built by wrkers since years ag.
The buildings have been destryed in the earthquake.
The earthquake has destryed the buildings.
A lt f trees have been planted in ur cuntry.
Present perfect passive现在完成时的被动语态
1. 概 念2. 构 成3. 用 法4. 注 意
have / has + been + v-ed
Hw d we frm the present perfect passive vice?
have /has + v-ed
现在完成时的被动语态意义及结构表示动作发生在过去, 到现在已经完成或对现在产生的影响。动词和被修饰主语构成被动关系。肯定式：have/has + been + v-ed否定式：have/has + nt + been + v-ed一般疑问句：Have/Has +主语+ been +v-ed?特殊疑问句：疑问词+have/has +been+ v-ed?
现在完成时的被动语态有两种情况：1) 表过去开始的被动动作一直持续到现在，常连用的时间状语有：fr+段时间，since +时间状语(从句)，these days, s far, up t nw, in the last/ past few years等。 如： This class have been taught by Mr. Brwn fr tw years. His Chinese has been imprved a lt since he came t China. Rwling’s nvels have been translated int many freign languages s far.
2) 表某被动动作对现在造成的影响或结果，常与already, yet, just, ever, never, recently等连用。如： The bike has nt been repaired yet. I have already been intrduced t Mr. Smith.
并不是所有动词都有被动语态。happen, take place, break ut, belng t, cst, last等不及物动词或词组无被动语态。Great changes have taken place in China since 1978.
1. 现在完成时的被动语态与一般过去时被动语态的区别 一般过去时被动语态表示一个被动的动作发生在过去，其结果对现在没有影响； 现在完成时被动语态的动作或状态尽管发生在过去，但侧重说明该动作或状态对现在造成的影响或结果。
The machine has been repaired．机器已经修好了。(动作发生在过去，对现在有影响，修好了。)The machine was repaired yesterday．机器昨天修了。(只说明动作发生在昨天。)
2. 动词短语是一个不可分割的整体，在被动语态中要保持其完整性，其中的介词或副词不可省略。 e.g. The rphans have been taken gd care f here． 孤儿们在这里受到很好的照顾。
I. 将下面句子中的主动语态变为被动语态。 1. Nbdy has heard f Susan since she mved t America. __________________________________________________2. They wn't finish the experiment befre ten 'clck.___________________________________________________
Susan hasn't been heard f since she mved t America.
The experiment wn't be finished befre ten 'clck.
3. We haven't given them anything t eat. __________________________________________________4. Have yu fed the pigs yet? __________________________________________________5. We have already discussed this questin. __________________________________________________
This questin has already been discussed.
They haven't been given anything t eat.
Have the pigs been fed yet?
II. 用括号内动词的正确形式填空。1. The same mistake _______________ (make) many times. 2. Mre than 100 famus films ________________ (shw) in the city since July. 3. Fr his tenth birthday, Carl wanted a bicycle but ________ (give) a guitar by his parents.4. Althugh it _______________ (play) many times, he still lves it. 5. Three new schls _______________ (pen) in ur city in the past 5 years.
has been made
have been shwn
has been played
have been pened
Rewrite the underlined parts using the present perfect passive.
Within the next 80 years, ur lives may be changed beynd recgnitin by 3D printing. It has already affected many things in ur lives, right dwn t the fd we eat. Fr instance, sme restaurants in Lndn have served 3D-printed hamburgers t custmers.
Many things in ur lives have
3D-printed hamburgers have been served t custmers in sme restaurants in Lndn.
already been affected
But perhaps the mst significant success that peple have achieved t date is in medicine. They have made human bdy parts, including a beating heart, with 3D printing technlgy. And it is nt just humans wh are benefiting- in Brazil, peple have given a new 3D-printed shell t a turtle injured in a frest fire!
But perhaps the mst significant success that has been achieved t date is in medicine.
Human bdy parts, including a beating heart, have been made with 3D printing technlgy.
A new 3D-printed shell has been given t a turtle injured in a frest fire!
3 Imagine yu are Dr Mre. Lk at the pictures and tell the plice abut the damage and lss t yur lab. Use the present perfect passive where apprpriate.
The windw has been brken.The lck n the dr has been brken.
My tw laptps have been stlen.Beakers and test tubes have been destryed.The bk case has been pened, and sme files have been taken away while thers have been thrwn everywhere.The rbt has been damaged.
Careers in science
Activity 4 (P30)
Lk at the pictures and answer the questins.
What d yu knw abut these careers?What famus scientists can yu name in these fields?
A mathematician is a persn wh is trained in the study f numbers and calculatins.
A physicist is a persn wh des research cnnected with physics r wh studies physics.
An astrnmer is a scientist wh studies the stars, planets, and ther natural bjects in space.
A chemist is a persn wh des research cnnected with chemistry r wh studies chemistry.
A bilgist is a persn wh studies r wrks in the field f bilgy.
A gegrapher is a scientist wh studies the gegraphy r is an expert in it .
Activity 5 (P30)
Cmplete the intrductins abut different scientists with the wrds in Activity 4. Pay attentin t the language that describes their careers.
Gu Shujing(1231-1316) was a famus Chinese 1________________ f the Yuan dynasty. He invented twelve new instruments t study stars and planets. He als develped a calendar which is as accurate as the Gregrian calendar. A muntain n the Mn and a minr planet are named after him.
British 2___________Charles Darwin (1809–1882) is best knwn fr his wrk On the Origin f Species, in which he explains changes in species due t natural selectin. His ideas deeply influenced ur understanding f the relatinship between humans and nature.
Li Dayuan was a famus writer and 3_____________ f the Nrthern Wei Dynasty. He did field research acrss China and studied mre than a thusand rivers and streams, alng with the landscape, histry and culture f the surrunding areas.
Marie Curie (1867–1934) was a wrld-famus 4_____________, and was first awarded the Nbel Prize in 1903 fr her extrardinary wrk n radiactivity. She was als regarded as a brilliant 5__________ and was again awarded the Nbel Prize in 1911 fr the islatin f pure radium.
Chen Jingrun (1933–1996) was ne f the wrld’s leading 6__________________.His wrk n Chen’s Therem made an imprtant advance twards prving Gldbach’s Cnjecture, the greatest unslved prblem in number thery.
mathematicians
Inventin stries
What is Alzheimer’s/ˈæltsaɪmə/ disease?Wh are the cmmn Alzheimer patients?Is it curable?What are scientists trying t deal with it?D yu knw any inventins related t it?
Alzheimer’s disease is a brain disrder that causes prblems with memry, thinking and behaviur.The majrity f peple with Alzheimer’s are 65 and abve. It is recgnised as the mst cmmn mental disease amng lder peple, and the number f sufferers is grwing. Currently, there's n cure fr Alzheimer's, but scientists are researching ways t imprve the quality f life fr peple living with the disease.
If ne f yur clse relative has the Alzheimer’s disease, what can yu d t help him r her?
Pre-listening
Take a lk at the picture and predict what the listening material will tell.
Activity 7 P31 Listen t the cnversatin and number the pictures in the crrect rder.
Listen again and cmplete the ntes.
What is it?
Wh was it invented by?
It’s___________________________________________________________.
It was invented by_________________________called Kenneth.
a pair f scks designed fr peple with Alzheimer’s disease
a student frm New Yrk
Wh inspired the inventin?
__________________, wh has Alzheimer's.
Hw des it wrk?
__________________ is sent t a mbile phne like an alarm when the persn with it ____________________.
His grandfather
gets ut f bed
Nw talk abut hw the speakers describe the stry behind an inventin. Listen again if necessary.
Learning t learn
Exclamatry sentences express strng emtins, such as surprise, shck, jy, emphasis and excitement. These are usually frmed with what r hw, and in written frm usually end with an exclamatin mark.
Act ut the cnversatin abut the inventin f the telephne.
Yu are ging t give a presentatin abut the inventin f the telephne. As part f yur research, yu speak t Student B wh has just read a bk abut it. Ask him/her questins t find ut mre infrmatin.
Infrmatin yu’d like t knw:the inventr year f inventinthe inventing prcessthe first phne callther interesting things abut the inventin
Wh was… invented?Hw was … invented?What was the first phne call abut?What ther interesting things…?
Useful expressins
Yu've just read a bk abut the inventin f the telephne.Student A, wh is ging t give a presentatin n the same tpic, asks yu fr infrmatin.
Inventr: Alexander Graham BellInventin created in: 1876
Backgrund: Bell was a teacher at a schl fr the deaf. He tried t invent a machine t send messages ver an electrnic wire. This eventually led t the idea f a telephne. Later, with his assistant, he created a device t prduce and receive sund waves using electrical signals.
First phne call: On 10 March 1876, Bell made the first clear and cmplete phne call t his assistant, saying, “Mr Watsn- cme here-I want t see yu.”
a. I guess yu have been asked abut the title f yur bk befre.b. New inventins like 3D printers have been used t make replacement hearts and bne parts.
What has happened t “yu” in sentence (a)?
Wh has used new inventins t make replacement hearts and bne parts in sentence (b) ?
c I guess smene has asked yu abut the title f yur bk befre.d Peple have used new inventins like 3D printers t make replacement hearts and bne parts.
present perfect active frm
present perfect passive frm
T emphasize the bject: “yu” and “new inventins”.
1. 不知道或者没有必要说明动作的执行者是谁； Such bks have been written fr children. 2. 强调动作的承受者，而不是动作的执行者； All the prducts have been tested.3. 动作的执行者很模糊; The letter has been pened.4. 有时候为了礼貌的需要，避免说出动作的执行者。 They have been tld many times nt t make nises.
Nw let’s read mre examples.
Hw many bks has J.K. Rwling written?
J.K. Rwling has written seven bks.
Seven bks have been written by Rwling.
Wrkers have built the huse since years ag.
The huse has been built by wrkers since years ag.
The buildings have been destryed in the earthquake.
The earthquake has destryed the buildings.
A lt f trees have been planted in ur cuntry.
Present perfect passive现在完成时的被动语态
1. 概 念2. 构 成3. 用 法4. 注 意
have / has + been + v-ed
Hw d we frm the present perfect passive vice?
have /has + v-ed
现在完成时的被动语态意义及结构表示动作发生在过去, 到现在已经完成或对现在产生的影响。动词和被修饰主语构成被动关系。肯定式：have/has + been + v-ed否定式：have/has + nt + been + v-ed一般疑问句：Have/Has +主语+ been +v-ed?特殊疑问句：疑问词+have/has +been+ v-ed?
现在完成时的被动语态有两种情况：1) 表过去开始的被动动作一直持续到现在，常连用的时间状语有：fr+段时间，since +时间状语(从句)，these days, s far, up t nw, in the last/ past few years等。 如： This class have been taught by Mr. Brwn fr tw years. His Chinese has been imprved a lt since he came t China. Rwling’s nvels have been translated int many freign languages s far.
2) 表某被动动作对现在造成的影响或结果，常与already, yet, just, ever, never, recently等连用。如： The bike has nt been repaired yet. I have already been intrduced t Mr. Smith.
并不是所有动词都有被动语态。happen, take place, break ut, belng t, cst, last等不及物动词或词组无被动语态。Great changes have taken place in China since 1978.
1. 现在完成时的被动语态与一般过去时被动语态的区别 一般过去时被动语态表示一个被动的动作发生在过去，其结果对现在没有影响； 现在完成时被动语态的动作或状态尽管发生在过去，但侧重说明该动作或状态对现在造成的影响或结果。
The machine has been repaired．机器已经修好了。(动作发生在过去，对现在有影响，修好了。)The machine was repaired yesterday．机器昨天修了。(只说明动作发生在昨天。)
2. 动词短语是一个不可分割的整体，在被动语态中要保持其完整性，其中的介词或副词不可省略。 e.g. The rphans have been taken gd care f here． 孤儿们在这里受到很好的照顾。
I. 将下面句子中的主动语态变为被动语态。 1. Nbdy has heard f Susan since she mved t America. __________________________________________________2. They wn't finish the experiment befre ten 'clck.___________________________________________________
Susan hasn't been heard f since she mved t America.
The experiment wn't be finished befre ten 'clck.
3. We haven't given them anything t eat. __________________________________________________4. Have yu fed the pigs yet? __________________________________________________5. We have already discussed this questin. __________________________________________________
This questin has already been discussed.
They haven't been given anything t eat.
Have the pigs been fed yet?
II. 用括号内动词的正确形式填空。1. The same mistake _______________ (make) many times. 2. Mre than 100 famus films ________________ (shw) in the city since July. 3. Fr his tenth birthday, Carl wanted a bicycle but ________ (give) a guitar by his parents.4. Althugh it _______________ (play) many times, he still lves it. 5. Three new schls _______________ (pen) in ur city in the past 5 years.
has been made
have been shwn
has been played
have been pened
Rewrite the underlined parts using the present perfect passive.
Within the next 80 years, ur lives may be changed beynd recgnitin by 3D printing. It has already affected many things in ur lives, right dwn t the fd we eat. Fr instance, sme restaurants in Lndn have served 3D-printed hamburgers t custmers.
Many things in ur lives have
3D-printed hamburgers have been served t custmers in sme restaurants in Lndn.
already been affected
But perhaps the mst significant success that peple have achieved t date is in medicine. They have made human bdy parts, including a beating heart, with 3D printing technlgy. And it is nt just humans wh are benefiting- in Brazil, peple have given a new 3D-printed shell t a turtle injured in a frest fire!
But perhaps the mst significant success that has been achieved t date is in medicine.
Human bdy parts, including a beating heart, have been made with 3D printing technlgy.
A new 3D-printed shell has been given t a turtle injured in a frest fire!
3 Imagine yu are Dr Mre. Lk at the pictures and tell the plice abut the damage and lss t yur lab. Use the present perfect passive where apprpriate.
The windw has been brken.The lck n the dr has been brken.
My tw laptps have been stlen.Beakers and test tubes have been destryed.The bk case has been pened, and sme files have been taken away while thers have been thrwn everywhere.The rbt has been damaged.
Careers in science
Activity 4 (P30)
Lk at the pictures and answer the questins.
What d yu knw abut these careers?What famus scientists can yu name in these fields?
A mathematician is a persn wh is trained in the study f numbers and calculatins.
A physicist is a persn wh des research cnnected with physics r wh studies physics.
An astrnmer is a scientist wh studies the stars, planets, and ther natural bjects in space.
A chemist is a persn wh des research cnnected with chemistry r wh studies chemistry.
A bilgist is a persn wh studies r wrks in the field f bilgy.
A gegrapher is a scientist wh studies the gegraphy r is an expert in it .
Activity 5 (P30)
Cmplete the intrductins abut different scientists with the wrds in Activity 4. Pay attentin t the language that describes their careers.
Gu Shujing(1231-1316) was a famus Chinese 1________________ f the Yuan dynasty. He invented twelve new instruments t study stars and planets. He als develped a calendar which is as accurate as the Gregrian calendar. A muntain n the Mn and a minr planet are named after him.
British 2___________Charles Darwin (1809–1882) is best knwn fr his wrk On the Origin f Species, in which he explains changes in species due t natural selectin. His ideas deeply influenced ur understanding f the relatinship between humans and nature.
Li Dayuan was a famus writer and 3_____________ f the Nrthern Wei Dynasty. He did field research acrss China and studied mre than a thusand rivers and streams, alng with the landscape, histry and culture f the surrunding areas.
Marie Curie (1867–1934) was a wrld-famus 4_____________, and was first awarded the Nbel Prize in 1903 fr her extrardinary wrk n radiactivity. She was als regarded as a brilliant 5__________ and was again awarded the Nbel Prize in 1911 fr the islatin f pure radium.
Chen Jingrun (1933–1996) was ne f the wrld’s leading 6__________________.His wrk n Chen’s Therem made an imprtant advance twards prving Gldbach’s Cnjecture, the greatest unslved prblem in number thery.
mathematicians
Inventin stries
What is Alzheimer’s/ˈæltsaɪmə/ disease?Wh are the cmmn Alzheimer patients?Is it curable?What are scientists trying t deal with it?D yu knw any inventins related t it?
Alzheimer’s disease is a brain disrder that causes prblems with memry, thinking and behaviur.The majrity f peple with Alzheimer’s are 65 and abve. It is recgnised as the mst cmmn mental disease amng lder peple, and the number f sufferers is grwing. Currently, there's n cure fr Alzheimer's, but scientists are researching ways t imprve the quality f life fr peple living with the disease.
If ne f yur clse relative has the Alzheimer’s disease, what can yu d t help him r her?
Pre-listening
Take a lk at the picture and predict what the listening material will tell.
Activity 7 P31 Listen t the cnversatin and number the pictures in the crrect rder.
Listen again and cmplete the ntes.
What is it?
Wh was it invented by?
It’s___________________________________________________________.
It was invented by_________________________called Kenneth.
a pair f scks designed fr peple with Alzheimer’s disease
a student frm New Yrk
Wh inspired the inventin?
__________________, wh has Alzheimer's.
Hw des it wrk?
__________________ is sent t a mbile phne like an alarm when the persn with it ____________________.
His grandfather
gets ut f bed
Nw talk abut hw the speakers describe the stry behind an inventin. Listen again if necessary.
Learning t learn
Exclamatry sentences express strng emtins, such as surprise, shck, jy, emphasis and excitement. These are usually frmed with what r hw, and in written frm usually end with an exclamatin mark.
Act ut the cnversatin abut the inventin f the telephne.
Yu are ging t give a presentatin abut the inventin f the telephne. As part f yur research, yu speak t Student B wh has just read a bk abut it. Ask him/her questins t find ut mre infrmatin.
Infrmatin yu’d like t knw:the inventr year f inventinthe inventing prcessthe first phne callther interesting things abut the inventin
Wh was… invented?Hw was … invented?What was the first phne call abut?What ther interesting things…?
Useful expressins
Yu've just read a bk abut the inventin f the telephne.Student A, wh is ging t give a presentatin n the same tpic, asks yu fr infrmatin.
Inventr: Alexander Graham BellInventin created in: 1876
Backgrund: Bell was a teacher at a schl fr the deaf. He tried t invent a machine t send messages ver an electrnic wire. This eventually led t the idea f a telephne. Later, with his assistant, he created a device t prduce and receive sund waves using electrical signals.
First phne call: On 10 March 1876, Bell made the first clear and cmplete phne call t his assistant, saying, “Mr Watsn- cme here-I want t see yu.”
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