(共12张PPT)
Unit6
When was it invented
A Grammar Focus
When was the camera invented
Louis Daguerre invented the camera in 1839.
Who invented the camera
Passive voice (past tense)
一般过去时的被动语态
Louis Dagurre invented the camera in 1839.
Active Voice
(主动语态)
主语
谓语
宾语
动作承受者
动作发出者
动作
was invented
Louis Daguerre
The camera
in 1839.
主语
谓语
宾语
动作承受者
动作发出者
动作
was +过去分词
by
Passive Voice
(被动语态)
Passive voice (past tense)
一般过去时的被动语态
Alexander Graham Bell invented the telephone in 1876.
Active Voice
(主动语态)
主语
谓语
宾语
动作承受者
动作发出者
动作
主语
谓语
宾语
动作承受者
动作发出者
动作
was +过去分词
Passive Voice
(被动语态)
The telephone was invented by Alexander Graham Bell in 1876.
Passive voice (past tense)
一般过去时的被动语态
概念
当主语是动作的承受者时,主语和谓语之间是被动关系,此时就要用被动语态。
was/were+及物动词的过去分词(+by+动作或行为的执行者)
?
结构
句式
Grammar Focus
句式
肯定句:
否定句:
一般疑问句:
特殊疑问句:
主语 + was/were+过去分词+其它.
主语 + was/were+过去分词+其它.
Was/Were+ 主语+过去分词+其它
特殊疑问词+ was/were+主语+过去分词+其他
They sold the fridge at a low price.
_______________________________
2. Somebody stole my camera from my hotel room.
___________________________________________
3. Where did you take the photos of these wolves
________________________________________
4a
Rewrite the sentences using the passive voice.
The fridge was sold at a low price.
My camera was stolen from my hotel room (by somebody).
Where were the photos of these wolves taken
at a low/high price 以低价 / 高价
steal…from… 从……偷……
wolf - wolves
狼
4. The guide warned them not to climb the mountain in bad weather.
____________________________________________
5. Different writers translated the book into different languages.
_________________________________________________
They were warned not to climb the mountain in bad weather by the guide.
The book was translated into different languages by different writers.
warn sb. (not) to do sth. 告诫某人(别)做某事
translate… into… 把……翻译成……
4a
Rewrite the sentences using the passive voice.
eat lock like ring
invite break tell bring
1. You ____________ to the party last night, weren’t you
Why didn’t you go
2. The earthquake happened all of a sudden, but luckily the
villagers _____________to a safe place.
were invited
突然;猛地
were brought
4b
Complete the sentences with the correct forms of the verbs in the box.
3. The door ____________ when we arrived, so we _____ the bell.
4. The students _________ not to eat or drink in class, but Ruby _________
the rule when she started eating a biscuit in science class.
5. The cookies ___________by the hungry kids in less than 20 minutes, and
they really ______them.
was locked
rang
were told
broke
were eaten
liked
4b
Complete the sentences with the correct forms of the verbs in the box.
eat lock like ring
invite break tell bring
The telephone ___________ (invent) by Alexander Graham
Bell. He __________(born) in 1847. Mr. Bell _________
(work) on the invention of the telephone with Thomas Watson. In 1875, Mr. Bell ________ (learn) how to send musical notes through an instrument similar to a telephone.
adj.音乐的;
有音乐天赋的
n. 器械;仪器;工具
was invented
was born
worked
learned
4c
Decide whether active or passive forms should be used in these sentences. Write the correct forms in the blanks.
Finally, the telephone _______________ (invent) in 1876. The first sentence that _________ (say) on the telephone by Mr. Bell was “Mr. Watson, come here; I want to see you.” Today the telephone _______ (use) around the world.
was invented
was said
is used
4c
Decide whether active or passive forms should be used in these sentences. Write the correct forms in the blanks.