2020—2021学年人教新课标必修二 Unit3The internet-- The Present Perfect Passive Voice课件(19张PPT)

The Present Perfect Passive Voice
Grammar
To learn and use the present perfect passive voice
1. we plant trees every year. Trees are planted every year.
2. They built the library in 1996. The library was built in 1996
.
3.We will hold a meeting soon. A meeting will be held soon.
Revision
Read the pairs of sentences and compare the verb form.
active voice
passive voice
Look at the sentences and think about
the underlined parts
Trees are planted every year.

The library was built in1996.
A meeting will be held soon.
Form?
Meanings?
summary
一般现在时的被动语态构成：
am /is / are+done
一般过去时的被动语态构成： was/were + done
一般将来时的被动语态构成.
will be +done
被做
被做了
将被做
Read the pairs of the sentences
and compair the underlined verb forms.
He has watered the flowers.
.
.
The flowers have been
watered
Their classroom has
been cleaned
The students have
cleaned their classroom.
Active voice
Passive voice
How do we form the present perfect passive voice？
Verb form
Active
passive
has/have+ been + done
has/have +done
fill in the blank below.
Read the sentences and underline the grammar structure.
1.His mistake has been corrected.
2.The buildings have been completed.
3.The lost boy has been found.
1.His mistake has been corrected.
2.The buildings have been completed.
3.The lost boy has been found.
现在完成时的被动语态
构成
have/has +been +done
understand the underlined parts and fill in the form .
意义
已经被做了
understand the underlined parts and fill in the blank.
1.Has your homework been handed in?
2.These problems have not been solved.
3.How much money has been raised?
现在完成时的被动语态
肯定式： have /has +been +done
否定式：
一般疑问式：
特殊疑问式：
have /has + not +been +done
have /has +主语 +been +done
特殊疑问词 +have /has +主语 +been +done
一.表示某一动作从过去一直持续到现在，并有可能继续
持续下去，常连用的时间状语有，for+时间段,
Since+时间状语(从句 )。 so far, up to now等
1).My English has been improved since Mr. Wang came to
my class.
2).Have both his new books been published so far?
The usage of the present perfect passive voice
　二.现在完成时的被动语态表示动作发生在过去, 到现在已经完成并对现在仍有影响,常与 already, yet, ever, never, just， before等连用。例如：
1). The dirty clothes have already been washed.
脏衣服都已经洗了。
2). The plan has ever been studied by the
experts for three times .
这项计划已经由专家研究过三次了。
The usage of the present perfect passive voice
Change the sentences into the passive voice;
3.Uncle wang hasn't repaired his bike.
2.Have you finished your paper?
hasn't been repaired .
your paper been finished?
have been taken good care of .
1. The nurses have taken good care of the old people
The old people
Has
His bike
Exercises
1.?Both my brothers work at the power station that ___ in my hometown.
A. has set up B. has been set up
C. was set up D. is set up
2.?---_____ the sports meet will be put off.
A. I’ve been told B. I’ve told
C. I’m told D. I told
改错
1. A personal computer has bought by us.
A personal computer______________ by us.

2. A lot of e-mails had written on the computer in the past 5 years.
A lot of e-mails__________________________
in the past 5 years
has been bought
have been written on the computer
practice:
read the sentences and fill in the blanks.
1.It’s said that this book __________________into English
and French so far. (translate)

2.Has your e-mile ______________(send)?
3.When and where to go for a picnic has_______________
(not decide)
.
has been translated
been sent
not been decided
Think and answer
When do we use the present perfect passive voice?
What are the similarities and differences between the present
perfect tense and the present perfect passive voice?
两者都表示动作已经完成。
现在完成时表示:某人已经做了某事 sb.has/have done sth.
现在完成时的被动语态表示：某事已经被做了
sth. has/have been done
当我们不知道动作的执行者是谁，或者没必要提动作的执行者
是谁时，常用被动语态
Homework
Do some exercises about the present perfect passive
voice

Thank you!