人教版九年级全册 Unit 6 When was it invented?Section A GrammarFocus-4c 课件 (共15张PPT)

(共15张PPT)
Unit 6
When was it ivnvented
sectionA
Grammar Focus-4c
Free-talk
A: When was the tea invented
B: ......
A: Who was it invented by
B: ...
A: How was the tea invented
B: ......
Review
Grammar
一、被动语态
当主语为动作的承受者时, 谓语要用被动语态。
Many people speak English.
（主动语态, 句子的主语many people是动作speak的执行者）
English is spoken by many people.
（被动语态, 句子的主语English是动作speak的承受者）
Review
Grammar
二、被动语态的结构
“be+V-过去分词”
三、被动语态的句型
肯定句 主+be+V-ed+其他. My bedroom is cleaned.
否定句 主+be+not+V-ed+其他. My bedroom is not cleaned.
一般疑问句 Be+主+V-ed+其他？ Is your bedroom cleaned
肯定回答 Yes, 主+ be. Yes, it is.
否定回答 No, 主+ be. not. No, it isn’t.
When was the zipper invented It was invented in 1893.
Who was it invented by It was invented by Whitcomb Judson.
When was tea brought to Korea It was brought to Korea during the 6th and 7th centuries.
What is the hot ice-cream scoop used for It’s used for serving really cold
ice-cream.
Passive voice in the simple past tense Active: Alexander Graham Bell invented the telephone in 1876. Passive: The telephone was invented (by Alexander Graham Bell) in 1876.
一般过去时的被动语态
Grammar Focus
Presentation
Trees were planted last spring.
去年春天种了树。
一般过去时被动语态
结构
“was/were+V-过去分词”
一般过去时的被动语态
____________________________ + 过去分词
was/were
肯定句 主语+was/were+及物动词的过去分词
（ + by…）
否定句 主语+was/were + not+及物动词的过去分词（+ by…)
疑问句 Was/Were+主语+及物动词的过去分词
（+by …)
特殊疑问词+was/were+主语+及物动词的过去分词（ + by...)
语法小知识——一般过去时的被动语态
Presentation
主动语态
被动语态
Somebody cleaned the office yesterday.
主语 谓语 宾语
The office was cleaned yesterday.
主语+be+过去分词
构成：一般过去时的被动语态由“主语+was/were+及物动词的过去分词”构成。助动词 be 有人称、数和时态的变化，其变化规则与 be 作为连系动词时完全一样。
Presentation
现以动词ask为例，将一般现在时和一般过去时被动语态的肯定式、否定式及疑问式列表如下：
肯定式 否定式 疑问式
一般现在时 I am asked… He/She/ is asked… We/You/They are asked… I am not asked… He/She is not asked… We/You/They are not asked… Am I asked…
Is he/she asked…
Are we/you/they asked…
一般过去时 I was asked… He/She/ was asked… We/You/They were asked… I was not asked… He/She was not asked… We/You/They were not asked… Was I asked…
Was he/she asked…
Were we/you/they asked…
被动语态的构成
被动语态由"助动词be+及物动词的过去分词"构成。人称、数和时态的变化是通过be的变化表现出来的。
时态 被动语态结构
一般现在时 am/is/are done
一般过去时 was/were done
一般将来时 shall/will/be going to be done
现在进行时 am/is/are being done
现在完成时 have/has been done
4a
Rewrite the sentences using the passive voice.
They sold the fridge at a low price.
2. Somebody stole my camera from my hotel room.
3. Where did you take these photos
The fridge was sold at a low price.
My camera was stolen (by somebody) from my hotel room.
Where were these photos taken (by you)
adj. 低的；矮的
n. 冰箱
pron. 某人
n.重要人物
Grammar
Rewrite the sentences using the passive voice.
4. Our parents advised us not to go out alone.
5. Different writers translated the book into different
languages.
We were advised not to go out alone by our parents.
The book was translated into different languages by different writers.
v. 翻译
Grammar
4a
4b
Complete the sentences with the correct forms of the verbs in the box.
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.
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.
were invited
were brought
was locked
rang
broke
were told
were eaten
liked
4c
Decide whether active or passive forms should be used
in these sentences. Write the correct forms in the blanks.
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.
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 born
worked
learned
was invented
was said
is used
THANK YOU
延迟符