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(共16张PPT)
fry, add, turn, connect, cut
A mini-camera _______ to the front of the glasses.
Words can also __________ into sound.
All the food _______ and _______.
The oil and salt _____ also______ by the machine itself.
is connected
be turned
is cut
fried
are added
send, design, make, creat
Almost everything under the sun can _______by the 3D printer.
The object _____________on a computer.
Then, a file________ and_____ to the 3D printer.
be made
is designed
is created
sent
develop, make, spread
The world __________ much smaller by the radio.
News could ________ around the world in seconds.
Because of the radio, some other important inventions _____________ as well.
was made
be spread
were developed
Read and find.
A mini-camera is connected to the front of the glasses.
Words can also be turned into sound.
All the food is cut and fried.
The oil and salt are also added by the machine itself.
Almost everything under the sun can be made by the 3D printer.
The object is designed on a computer.
Then, a file is created and sent to the 3D printer.
The world was made much smaller by the radio.
News could be spread around the world in seconds.
Because of the radio, some other important inventions were developed as well.
Passive Voice
被动语态
be
done
am/is/are done
was/were done
Why do we use the passive voice
A mini-camera is connected to the front of the glasses.
Then, a file is created and sent to the 3D printer.
We don’t know who did it.
We are focusing on the action.
Where can we often see the passive voice
A. In formal writing.
B. In spoken English.
√
Complete the sentences with the correct forms of the verbs in brackets. (4b)
was invented
are connected
was introduced
was pressed
was found
be supposed to 应该
学生们应该按时完成作业。
Students are supposed to finish their homework on time.
我们不应该在图书馆里大声讲话。
We are not supposed to talk loudly in the library.
It is said that ...
It is reported that ...
It's believed that the word “robot” was introduced for the first time in a play __________.
in 1920
a creative idea
Robots can be seen in a lot of areas .
take actions
meet challenges
overcome the problems
What a great creation!
The building of the Qinghai- Xiang Railway was a great challenge.
the _________ground
frozen
the _______ animals
wild
improve
transport
tourism
economic
Read quickly. Summarize each paragraph with 1–2 keywords.
Introduction
Challenges&
Solutions
Influence 影响
Complete the passage with the correct forms of the verbs in brackets.
connects
were needed
were used
be created
were built
allow
increased
improve
2006
The Qinghai-Xizang Railway was completed in 2006.
Xining
Lhasa
It connects Xining to Lhasa,
a huge distance of 1,956 kilometres.
长达……的巨大距离
a distance of + 数字
一段……的距离
It is the ______ railway in the world, _______5,072 metres above ________ at Tanggula Pass.
highest
reaching
sea level
When
How long
What features
connects
were needed
were used
be created
were built
allow
What challenges do people have to meet
Frozen ground becomes soft but it is too hard in some places.
What do engineers use to solve such problems
A. Bridges B. Pipes C. Greendhouses D. Tunnels
Talk about the challenges and solutions.
The building of the railway was ______________. ____________ were needed to solve _________________.
a great challenge
Creative ideas
different problems
In summer, the _______ of the ______ ground would ____ and become too soft to _______.
top layer
frozen
melt
build on
So ______ were used to keep the ground ______.
pipes
hard
However, in some places, it was _________ to build the _______ over the frozen ________.
impossible
railway
ground
Talk about the challenges and solutions.
So _______ had to be ________ instead.
tunnels
created
In some other places, _______ were _____ to keep the railway _______ the ground.
bridges
built
up above
在地面之上
These bridges are _____________ and ______ animals to pass under the ______.
animal-friendly
allow
tracks
As an __________ and __________ project, the railway has _________ _______ and _________ ___________ in the area.
important
successful
increased
tourism
economic
development
The lessons ______ and experience ______ from ________________ will help improve __________ in other _________ places in the world.
learnt
gained
building this railway
transport
similar
increased
improve
Introduce what we’ve learnt.
2006
Xining
Lhasa

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