人教版 (2019)必修 第二册Unit 3 The internet集体备课ppt课件

这是一份人教版 (2019)必修 第二册Unit 3 The internet集体备课ppt课件，共16页。PPT课件主要包含了Lead in，Verb form，Practice，Brainstorm，Writing，Your poem等内容，欢迎下载使用。
Teaching bjectives:
By the end f this perid, yu will be able t…
analyze the frms and features f the present perfect passive vice. find ut the differences in meaning and functin between the active and passive frms.master the functins f the present perfect passive vice in the cntext and use it in real situatins.
What aspects in yur life have been changed since the appearance f the Internet?
Try t tell the changes accrding t the table using the present perfect passive vice.
ft; bike; bus; train plane; high-speed rail
paper bks E-bks
in cash; by credit E-payment
watch mvies in the theater…
Stream mvies and music ; chat nline…
1. Jan’s life has been greatly imprved by the Internet.The Internet has greatly imprved Jan’s life.2. Much has been written abut the wnders f the Wrld Wide Web.Peple have written much abut the wnders f the Wrld Wide Web.
Observe and analyze
Underline and cmpare the different verb frms.
Active __________________
Passive _________________
The frm f the present perfect passive vice
have/has +v-ed
have/has been +v-ed
Change the sentences int the present perfect passive vice.ExampleThey have 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?
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?
What are the differences in meaning and functin between the active and passive frms?
The bject in an active sentence becmes the subject in a passive sentence. Bth sentence types cnvey a similar meaning, but they are slightly different. Active sentences are used ften, as they are mre direct. Passive sentences are ften used when the der f an actin is unknwn, nt imprtant, r preferred nt named.
We use it when smething has been dne by smene at smetime up t nw.We are nt interested in the actr(行动者).Subject and its verb shuld be in a agreement.
the present perfect passive vice
Cmplete the ntice with the crrect frms f the verbs in brackets. (Wrkbk P75 Activity 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 Center. Every teacher _________________(prvide) with a laptp since the beginning f this term.Mre imprtantly, 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.N. 8 Senir High Schl
has been made
has been given
has been supprted
has been prvided
have been taught
have been helped
has been set up
Enjy the pem
1. What are the subjects f yur pems?2. Can yu list sme verbs cnnected t the subjects?3.Can yu make a sentence accrding t the example?
Films, pictures, flwers, trees…
Make, paint, plant…
Lk at the way the pictures have been painted.Lk at the way the films have been made.
Think f yur wn situatin and write a similar pem.
√ Have yu used the present perfect passive vice in yur writing?√ Is yur writing clear and lgical?√ Are all the wrd spelt crrectly?√ Is yur handwriting easy t read?
Self-assessment
Lk at the way the picture has been paintedLk at the way the film has been madeLk at the way the pem has been writtenNw think abut what yu culd create Lk at the way the needy have been helpedLk at the way the river has been cleanedLk at the way the tree has been plantedNw think hw t make the wrld a better place