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高中英语人教版 (2019)必修 第二册Unit 3 The internet精品课件ppt
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这是一份高中英语人教版 (2019)必修 第二册Unit 3 The internet精品课件ppt，共21页。PPT课件主要包含了Homework等内容，欢迎下载使用。
Learning bjectives:
After learning this class, yu’re able learn the frm f Present perfect passive vice.2. knw hw t use Present perfect passive vice in a specific situatin.3. Write a blg t discuss the advantages and disadvantages f Internet.
Jan’s life has been greatly imprved by the Internet.Much has been written abut the wnders f the Wrld Wide Web.
The Internet has greatly imprved Jan’s life.Peple have written much abut the wnders f the Wrld Wide Web.
The students have cleaned the classrm.The classrm has been cleaned. Yu needn’t clean it nw.
表示说话时已经完成的被动性的动作或结果，主语是动作的承受者。
Hw d we frm the present perfect passive vice? Fill in the blank.
have/has been + v -ed
主动语态变被动语态的原则
原句意思不变 原句时态不变 原句主谓宾以外成分不变
肯定形式：His hmewrk has been finished.否定形式：His hmewrk has nt been finished.一般疑问句:Has his hmewrk been finished yet?特殊疑问句：Hw lng has his hmewrk been finished?
The letter (pst) already.
Many huses (build) fr the pr s far.
has been psted
have been built
用法1:强调过去的动作对现在造成的影响或结果，主语和谓语之间为被动关系，通常与already, yet, just, never, recently等副词连用
用法2:表示一个被动的动作或状态开始于过去，持续到现在，并可能持续下去，常与fr或since引导的时间状语连用，或用于“Hw ”句型中。
has been repaired
has been used
has been admitted
has been finished
用法3:用在时间或条件状语从句中，表示将来某时已完成的动作，即用现在完成时的被动语态代替将来完成时的被动语态。
1. 现在完成时的被动语态、现在进行时的被动语态及一般过去时的被动语态的区别The machine has been repaired.（说明动作发生在过去，对现在有影响，“现在修好了”）The machine is being repaired nw.（说明动作正在进行）The machine was repaired yesterday.（只说明动作发生在过去）2. 非延续性动词，如brrw, finish, begin, start, buy, marry, pen, jin等构成的现在完成时的被动语态不能与表示一段时间的状语连用。若要表达相应的意思，则要改换动词或时态。例：工程已开始三个月了。 The prject has been started fr three mnths.（F） The prject has been n fr three mnths.（T）
常与现在完成时连用的时间状语有：already 已经 yet 已经recently/lately 最近 since then 从那时起ever since 自那以来 ever 曾经s far 迄今为止 by nw 到现在为止fr a lng time 很长一段时间in recent years 在最近几年里in/during/ver the past/last years 在过去的几年里
Change the sentences int the present perfect passive vice.
EXAMPLE They’ve built a kind f new PC with mre functins. →A kind f new PC has been built with mre functins.
1 I have dwnladed the sftware t help my phne battery last lnger. →2 Smene has lst an identity card. →3 Have yu cnfirmed the Wi-Fi passwrd? →4 Have yu pressed the buttn yet t cpy the file? →5 Has anyne made a cmment abut the nline database? →
The sftware has been dwnladed t help my phne battery last lnger.
An identity card has been lst.
Has the Wi-Fi passwrd been cnfirmed?
Has the buttn been pressed yet t cpy the file?
Has a/any cmment been made abut the nline database?
Cmplete the ntice with the crrect frms f the verbs in brackets.
(WORKBOOK P75 EX. 4)
Ntice t parentsDear Parents,We hpe yu will welcme this news. Almst 100 cmputers_______________（give) t us by a lcal cmputer cmpany since the end f last year. A decisin______________（make) t begin a cmputer teaching experiment at ur schl. Our plan __________________ （supprt) with technical equipment and advice which____________________（prvide) by the City Infrmatin Technlgy Centre. Every teacher__________________（prvide) with a laptp since the beginning f this term. Mre recently, mst f ur curses ________________ （teach) using cmputers. We _________（help) in ur teaching by a lt f infrmatin frm the Internet. Als, a new cmputer rm ________________ (set up) in ur schl. We hpe yu will be happy with this exciting new develpment in ur schl.
have been given
has been made
has been supprted
has been prvided
have been taught
have been helped
has been set up
(Assessing yur prgress P34. 2.)
has been upside dwn
have been cnsidered
has been cmpletely changed
has been taken ver
have been heavily influenced
Advantages & Disadvantage
help feel less lnely and bred, jin an nline grup where she culd talk abut her prblems and get supprt and advice frm thers
Entertainment
Scial cmmunicatin
stream mvies and music
chat with my friends anytime, anywhere
use a search engine t d my hmewrklk up infrmatin
Listening and Speaking
apply fr wrk and find a great jb, start a small nline cmpany, start a charity website, bikes can be rented by using nline apps
Reading and Thinking
make a fitness plan, get discunts, add mney t her bank accunt, get in shape, keep track f the steps
stream yur favrite TV prgrammeskeep yu updated n all yur favurite tpics
Listening and Talking
sme curses are free and pen t anyne, have been taught English by freign teachers in ther cuntries, interact with a rbt, students wrk tgether n prjects
Late nights spent maintaining a 24/7 scial media prfile culd be detrimental t peple’s health.
Becme t invested in having t keep updating and liking pictures and respnding t peple nline.
Seeing psts f peple and their exciting r successful lives might put yurself dwn.
Smene might use the infrmatin t steal yur identity.Identity theft is a cmmn and serius prblem.
A trll psts cmments r questin in rder t stir up truble nline.
A cyberbully uses the Internet t be mean t thers. He r she may als pst embarrassing phts and infrmatin abut particular peple.
Reading fr Writing
你校将举办英语演讲比赛，以Be smart nline users 为题写一篇发言稿参赛，内容包括：1. 分析优势与不足；2. 提出使用互联网的建议。
Think and Share
Think abut mre psitive r negative influences f the Internet n learning. Wrk in grups t present yur pinin with supprting details.
Think abut the fllwing questins:
mre cnvenient, strnger cnnectin, start an nline cmmunity
stream music and vide, g shpping, take nline classes, chat with friends, check nline frums, read the updated psts, lk up infrmatin. play nline games
Yuda Dictinary, BaiCiZhan, China Daily, TED, Daily English Listening
advertising message, identity theft, charge withut permissin,
develp sme self-regulatin skills, turn ff the mbile phne, make a plan t use respnsibly,
use strng passwrd, dn’t pst persnal infrmatin, dwnlad the app frm an fficial website, dn’t pen email attachments that cmes frm unknwn surces
Q1: Hw has peple’s life been imprved by the internet?
Q2: What has been dne nline in yur free time?
Q3: What English learning apps have been used nline?
Q4: What prblems have yu met nline, such as dwnlading netwrk apps t learn?
Q5: What have been dne when yu are t invested n scial media?
Q6: What can be dne t help use the Internet prperly and effectively?
gd time management will lead t high efficiency. Turn ff ur cell phnes and clse irrelevant web brwser windws t avid distractins.
Be smart nline learners Online learning has becme an imprtant way t study recently. _____________________________________________________________________________________________________________________________________
Learning bjectives:
After learning this class, yu’re able learn the frm f Present perfect passive vice.2. knw hw t use Present perfect passive vice in a specific situatin.3. Write a blg t discuss the advantages and disadvantages f Internet.
Jan’s life has been greatly imprved by the Internet.Much has been written abut the wnders f the Wrld Wide Web.
The Internet has greatly imprved Jan’s life.Peple have written much abut the wnders f the Wrld Wide Web.
The students have cleaned the classrm.The classrm has been cleaned. Yu needn’t clean it nw.
表示说话时已经完成的被动性的动作或结果，主语是动作的承受者。
Hw d we frm the present perfect passive vice? Fill in the blank.
have/has been + v -ed
主动语态变被动语态的原则
原句意思不变 原句时态不变 原句主谓宾以外成分不变
肯定形式：His hmewrk has been finished.否定形式：His hmewrk has nt been finished.一般疑问句:Has his hmewrk been finished yet?特殊疑问句：Hw lng has his hmewrk been finished?
The letter (pst) already.
Many huses (build) fr the pr s far.
has been psted
have been built
用法1:强调过去的动作对现在造成的影响或结果，主语和谓语之间为被动关系，通常与already, yet, just, never, recently等副词连用
用法2:表示一个被动的动作或状态开始于过去，持续到现在，并可能持续下去，常与fr或since引导的时间状语连用，或用于“Hw ”句型中。
has been repaired
has been used
has been admitted
has been finished
用法3:用在时间或条件状语从句中，表示将来某时已完成的动作，即用现在完成时的被动语态代替将来完成时的被动语态。
1. 现在完成时的被动语态、现在进行时的被动语态及一般过去时的被动语态的区别The machine has been repaired.（说明动作发生在过去，对现在有影响，“现在修好了”）The machine is being repaired nw.（说明动作正在进行）The machine was repaired yesterday.（只说明动作发生在过去）2. 非延续性动词，如brrw, finish, begin, start, buy, marry, pen, jin等构成的现在完成时的被动语态不能与表示一段时间的状语连用。若要表达相应的意思，则要改换动词或时态。例：工程已开始三个月了。 The prject has been started fr three mnths.（F） The prject has been n fr three mnths.（T）
常与现在完成时连用的时间状语有：already 已经 yet 已经recently/lately 最近 since then 从那时起ever since 自那以来 ever 曾经s far 迄今为止 by nw 到现在为止fr a lng time 很长一段时间in recent years 在最近几年里in/during/ver the past/last years 在过去的几年里
Change the sentences int the present perfect passive vice.
EXAMPLE They’ve built a kind f new PC with mre functins. →A kind f new PC has been built with mre functins.
1 I have dwnladed the sftware t help my phne battery last lnger. →2 Smene has lst an identity card. →3 Have yu cnfirmed the Wi-Fi passwrd? →4 Have yu pressed the buttn yet t cpy the file? →5 Has anyne made a cmment abut the nline database? →
The sftware has been dwnladed t help my phne battery last lnger.
An identity card has been lst.
Has the Wi-Fi passwrd been cnfirmed?
Has the buttn been pressed yet t cpy the file?
Has a/any cmment been made abut the nline database?
Cmplete the ntice with the crrect frms f the verbs in brackets.
(WORKBOOK P75 EX. 4)
Ntice t parentsDear Parents,We hpe yu will welcme this news. Almst 100 cmputers_______________（give) t us by a lcal cmputer cmpany since the end f last year. A decisin______________（make) t begin a cmputer teaching experiment at ur schl. Our plan __________________ （supprt) with technical equipment and advice which____________________（prvide) by the City Infrmatin Technlgy Centre. Every teacher__________________（prvide) with a laptp since the beginning f this term. Mre recently, mst f ur curses ________________ （teach) using cmputers. We _________（help) in ur teaching by a lt f infrmatin frm the Internet. Als, a new cmputer rm ________________ (set up) in ur schl. We hpe yu will be happy with this exciting new develpment in ur schl.
have been given
has been made
has been supprted
has been prvided
have been taught
have been helped
has been set up
(Assessing yur prgress P34. 2.)
has been upside dwn
have been cnsidered
has been cmpletely changed
has been taken ver
have been heavily influenced
Advantages & Disadvantage
help feel less lnely and bred, jin an nline grup where she culd talk abut her prblems and get supprt and advice frm thers
Entertainment
Scial cmmunicatin
stream mvies and music
chat with my friends anytime, anywhere
use a search engine t d my hmewrklk up infrmatin
Listening and Speaking
apply fr wrk and find a great jb, start a small nline cmpany, start a charity website, bikes can be rented by using nline apps
Reading and Thinking
make a fitness plan, get discunts, add mney t her bank accunt, get in shape, keep track f the steps
stream yur favrite TV prgrammeskeep yu updated n all yur favurite tpics
Listening and Talking
sme curses are free and pen t anyne, have been taught English by freign teachers in ther cuntries, interact with a rbt, students wrk tgether n prjects
Late nights spent maintaining a 24/7 scial media prfile culd be detrimental t peple’s health.
Becme t invested in having t keep updating and liking pictures and respnding t peple nline.
Seeing psts f peple and their exciting r successful lives might put yurself dwn.
Smene might use the infrmatin t steal yur identity.Identity theft is a cmmn and serius prblem.
A trll psts cmments r questin in rder t stir up truble nline.
A cyberbully uses the Internet t be mean t thers. He r she may als pst embarrassing phts and infrmatin abut particular peple.
Reading fr Writing
你校将举办英语演讲比赛，以Be smart nline users 为题写一篇发言稿参赛，内容包括：1. 分析优势与不足；2. 提出使用互联网的建议。
Think and Share
Think abut mre psitive r negative influences f the Internet n learning. Wrk in grups t present yur pinin with supprting details.
Think abut the fllwing questins:
mre cnvenient, strnger cnnectin, start an nline cmmunity
stream music and vide, g shpping, take nline classes, chat with friends, check nline frums, read the updated psts, lk up infrmatin. play nline games
Yuda Dictinary, BaiCiZhan, China Daily, TED, Daily English Listening
advertising message, identity theft, charge withut permissin,
develp sme self-regulatin skills, turn ff the mbile phne, make a plan t use respnsibly,
use strng passwrd, dn’t pst persnal infrmatin, dwnlad the app frm an fficial website, dn’t pen email attachments that cmes frm unknwn surces
Q1: Hw has peple’s life been imprved by the internet?
Q2: What has been dne nline in yur free time?
Q3: What English learning apps have been used nline?
Q4: What prblems have yu met nline, such as dwnlading netwrk apps t learn?
Q5: What have been dne when yu are t invested n scial media?
Q6: What can be dne t help use the Internet prperly and effectively?
gd time management will lead t high efficiency. Turn ff ur cell phnes and clse irrelevant web brwser windws t avid distractins.
Be smart nline learners Online learning has becme an imprtant way t study recently. _____________________________________________________________________________________________________________________________________
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