Unit 1 When was it invented? Section A (3a—4c) 课件(共21张PPT)

(共21张PPT)
Unit 1 When was it invented
Section A (3a—4c)
话题 谈论发明
重点 能在过去时态情境下正确运用及物动词的被动语态表示某一动作被完成。
难点 掌握被动语态仅适用于及物动词的规则。
单词 remain (v.) 保持不变；剩余 smell (n.) 气味 (v.) 发出……气味；闻到 doubt (n.) 疑问；疑惑 (v.) 怀疑
短语 by accident 偶然；意外地 take place 发生;出现 without doubt 毫无疑问；的确
句式 It is said that a Chinese ruler called Shen Nong was the first to discover tea as a drink.
重点语法 一般过去时的被动语态
What will you do if you are really thirsty
You’d like to drink these drinks.
drink v. 喝；饮 n. 饮料
What’s the most traditional drink in China
Tea has a long history.
Tea was first drunk nearly
5, 000 years ago.
boiling drinking water
leaves
It smells pleasant.
It tastes delicious and …
Who was tea invented by
It was invented by the Chinese ruler called Shen Nong．
Shen Nong
How was it invented
boiling water over an open fire
fell into …and remained…
produced a nice smell
tasted the brown water —tea
It was invented by accident.
have a point
by accident
it is said/believed that
be brought to sp.
take place
even though
without doubt
Language points
有道理
偶然；意外地
人们说/相信
被带到某地
发生；出现
即使
毫无疑问；的确
3a Read the passage quickly and match each paragraph with its main idea.
Paragraph 1
Paragraph 2
Paragraph 3
Lu Yu and his book Cha Jing
How tea spread to other countries
How tea was invented by accident
3b Read the passage again and answer the questions.
When was tea first drunk
2. How was tea invented
3. Who is called “the saint of tea”
4. What is Cha Jing about
5. When was tea brought to other countries
About 5,000 years ago.
It was invented by accident.
Lu Yu.
How tea plants were grown and used to make tea.
Korea and Japan: the 6th and 7th centuries England:
around 1660
3c Complete the sentences with the correct forms of the verbs in the box.
1.One of the world’s favorite drinks was________
by accident.
2.Tea was first ________ by Shen Nong about 5,000
years ago.
3.A nice smell was _________ when the tea leaves
dropped into the hot water.
4. Tea was__________ to Korea and Japan during the
6th and 7th centuries.
5.Tea is now ________ between many different
countries.
invent, drink, bring, produce, trade
invented
drunk
produced
brought
traded
Grammar Focus
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
Active Voice: Alexander Graham Bell invented the telephone in 1876.
Passive Voice: The telephone was invented (by Alexander Graham Bell) in 1876.
The simple past passive voice
一般过去时的被动语态
一般过去时的被动语态表示过去经常性、习惯性被动动作或过去某一时刻发生的被动性动作，与主动语态相比,被动语态中主语是谓语动作的执行者。
被动语态的构成:
was/were+ (及物动词的) 过去分词
语法探究
Bell invented the telephone in 1876.
The telephone was invented by Bell in 1876.
主动语态变被动语态的结构图:
主语
谓语动词
过去式
宾语
时间状语
主语
谓语动词的
过去分词
宾语
时间状语
1. 掌握下面的单词、短语和句式
单词 ruler, boil, remain, smell, national, trade, doubt
短语 by accident, take place, without doubt
句式 It is said that a Chinese ruler called Shen Nong was the first to discover tea as a drink.
2. 掌握重点语法
一般过去时的被动语态
用所给动词的正确形式填空
1. The bike __________(fix) up by Tom yesterday.
2. Shields ________ (use) for protecting people’s bodies
in the past.
3.Last year, a picture _________(put) up on the
blackboard.
4. She said French______________ (speak) in France.
5. Teenagers _______________(allow) to choose their
own clothes two years ago.
was fixed
were used
was put
was spoken
were allowed
They sold the fridge at a low price.
_____________________________________________
2. Somebody stole my camera from my hotel room.
_____________________________________________
3. Where did you take these photos
_____________________________________________
4. Our parents advised us not to go out alone.
__________________________________________________
5. Different writers translated the book into different languages.
_____________________________________________________
___________
The fridge was sold at a low price.
My camera was stolen from my hotel room.
Where were these photos taken
We were advised by our parents not to go out alone.
The book was translated into different languages by different writers.
4a Rewrite the sentences using the passive voice.
4b Complete the sentences with the correct forms of the verbs in the box.
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.
eat, lock, like, ring, invite, break, tell, bring
were invited
were brought
was locked
rang
were told
broke
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 said
is used
was invented
Suppose you are alone on a tiny island. What inventions would you like to have on the island with you Write a short passage.
Homework
Imagination is more important than knowledge.
想象力比知识更为重要。