九年级英语|Unit 4 When was it invented？|单元综合（鲁教版九年级）

课件28张PPT。Unit 4When was it invented ?Section ATalk about the history of inventions.
The passive voice.1bListen and match the inventions
with the dates.abedc1876
1885
1927
1971
1976dabec1cPAIRWORK1cPAIRWORKWhen was the telephone invented ?
I think it was invented in 1876.Julie Thompsonbattery-operated
slippersChelsea Lanmonheated ice
cream scoopJayce Coziar and Jamie Ellsworthshoes with adjustable heels2aListen and number the inventions in
the order that you hear.3122bPAIRWORKWho was it / were they invented by ?
It was/ They were invented by
Chelsea Lanmon.3bPAIRWORKWhat do you think is the most helpful
invention?
I think the most helpful invention is
the light bulb.
Why is that?
Well, it gives people more time to work
and play every day.The passive voice.被动语态 英语中动词有主动语态和被动语态两种语态. 主动语
态表示主语是动作的执行者,被动语态表示主语是动作的
承受者, 在被动语态中动作的执行者有时用by短语表示
出来.被动语态的构成:助动词be+ (及物动词的) 过去分词 一般现在时一般过去时The passive voice.被动语态被动语态的用法: 不知动作执行者时,常用被动语态.
eg. My bike was stolen yesterday.
This car is made in American.
2. 不必要说出动作执行者时,常用.
eg. Rome was not built in a day.
3. 为了突出强调动作的承受者时,常用被动语态.
eg. Thousands of beaches are polluted (污染).The passive voice.被动语态主动语态变为被动语态的步骤:把原主动句中的宾语转换为被动语态的主语.
2.把动词改为被动形式,即 “be + 过去分词” . 注意 be
动词要按新的主语的人称和数进行变化,时态要和原来
的主动语态的时态保持一致.
3. 原来主动语态句中的主语,如果需要,就放在by后面
以它的宾格形式出现. 如果没有必要就可以省略.其他的
成分 (定语,状语) 不变, 句式也不能变.The passive voice.被动语态主动语态变被动语态的结构图:Bell invented the telephone in 1876.
The telephone was invented by Bell in 1876. 主语谓语动词过去时宾语时间状语主语谓语动词的过去分词宾语时间状语The passive voice.被动语态主动语态改被动语态:Bellinvented the telephonein 1876.wasbyHOMEWORKStudents’ book P 70, part 4.GoodBye!When was it invented?salty:
in the end:
by mistake:
by accident:
according to:
咸的,含盐的. 名词,salty 加 y 构成形容词． 最后,终于.
eg. Everything will be all right in the end. 弄错的,错误地.
eg. He took the umbrella by mistake. 偶然,意外, 无意中.
eg. I met her by accident in a crowded bus. 根据…, 按照
eg. We’ll be paid according to the amount
of work we do.soursweet
sweetsweetcrispysaltyListen and circle “T” (for true) or “F” (for false).The potato chips were invented by mistake.
They were invented in 1863.
The customer thought the potatoes weren’t thin enough.
The customer said they weren’t salty enough.
George wanted to make the customer happy.
The customer was happy in the end.T F
T F
T F
T F
T F
T FThe history of chips that potato chips were invented by mistake? Chips by a chef called George Crum. They were invented in .George Crum cooked them for a long time until they . And he sprinkled lots of salt on them so they were
.
Did you knowwere invented1853were crispyreally saltyWho invented tea? Did you know that tea, the most popular drink in
the world (after water), was invented by accident?
Although tea wasn’t brought to the Western world
until 1610, this beverage was discovered over
three thousand years before that. According to an
Ancient Chinese legend, the emperor Shen Nong
Discovered tea when he was boiling drinking water
over an open fire. Some leaves from a nearby bush
fell into the water and remained there for some
time. The emperor noticed that the leaves in the
water produced a pleasant smell. Later he decided
to taste the hot mixture. It was quite delicious. And
in this way, one of the world’s favorite drinks was
invented.Read the article and write answers to the questions.What is the article about ?
It is about the invention of tea.It was invented over three thousand
years ago.
It was invented by the Chinese emperor
Shen Nong.It was invented by accident.3. Who was it invented by?4. How was it invented?
2. When was it invented?Write an article using the notes in the box.From pie plate to flying disk. The flying disk was invented by college students. They used a metal pie plate from a bakery in Bridgeport, Connecticut. Students ate the bakery’s pies and then threw the pie plates. Today, there are flying disk clubs, magazines and a festival.
a pen that listens and writesNew invention:Use:It can listen to the writer and
write by itself.Price :$ 50music candleactivity glassestemperature cupGoodbye!