Unit6 When was it invented SectionA Grammar Focus4c课件(共21张PPT)

(共21张PPT)
4a
Rewrite the sentences using the passive voice.
点拨：原句为一般过去时态，原句的谓语动词为sold，宾语为the fridge；改为被动语态时，应将the fridge作主语，谓语动词用was sold的形式。
1. They sold the fridge at a low price.
_______________________________
The fridge was sold at a low price.
点拨：分析原句的句子结构可知，stole是谓语动 词，my camera是句子的宾语；改为被动语态句时，应将my camera作句子主语，谓语动词用was stolen的形式。
2. Somebody stole my camera
from my hotel room.
_________________________________
_________________________________
My camera was stolen 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.
__________________________________
__________________________________
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.
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
eat, like, invite, tell, lock, ring, break, bring
were brought
4b
Complete the sentences with correct forms of the verbs in the box.
句子主语you与invite之间存在被动关系。
villagers与bring之间存在被动关系
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
broke
were told
were eaten
liked
The telephone ______________ (invent) by Alexander Graham Bell. He __________ (born) in 1847. Mr. Bell ________ (work) on the invention of the telephone with Thomas Watson.
was born
was invented
worked
Decide whether active or passive forms should be used in these sentence. Write the correct forms in the blanks.
4c
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.
learned
was invented
was said
is used
Mr. Bell与learn之间为主动关系。
补全下列主动句变被动句。
1. Jenny put her clothes in the suitcase last night.
Her clothes____ ____ in the suitcase last night.
2. The twins sang an English song that day. An English song ____ _____ by the twins that day.
3. Did they build a bridge here a year ago ____ a bridge ____ here by them a year ago
4. They sold out the light green dresses yesterday. The light green dresses ____ _____ out.
What did they eat
Ice-cream.
What did the big dog think of the ice-cream
Sweet, cool, and delicious!
How will the bread and snack taste
Sweet and delicious.
Can you think of any other flavor
Salty, hot, bitter, sour, fresh …
The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word.
1a
______ ______ ______ ______
______ ______ ______ ______
crispy
sour
salty
sweet
sweet crispy salty sour
salty
adj. 脆的；酥脆的
adj. 酸的
adj. 咸的
sweet ____________________________
crispy ____________________________
salty ____________________________
sour ____________________________
Write the name of a different food after each word.
banana
apple
Beijing Duck
potato chips
1b
grape
candy
cookie
cheese
salted fish
lemon
1. Potato chips were invented by mistake.
2. They were invented in 1863.
3. The customer thought the potatoes were not thin enough.
circle T for true or F or false.
1c
T F
T F
T F
4. The customer said they were not salty enough.
5. George wanted to make the customer happy.
6. The custom was happy in the end.
T F
T F
T F
n. 顾客
1. Who invented potato chips
They were invented by a cook called George Crum.
2. When were they invented
In 1853.
answer the questions.
3. What did the custom order at the restaurant
He ordered a plate of fried potatoes.
5. How did George cook the potatoes then
He cut the potatoes really, really thin and cooked them for a long time until they were crispy. And he put lots of salt on them so they were really salty.
4. What did the custom think of the potato chips George cooked at first
He thought they were cut too thick.
The History of Potato Chips
Do you know how potato chips were invented Potato chips ____________ by a cook called George Crum. They were invented in ____.
Complete the sentences.
were invented
1853
1d
George Crum cut the potatoes really, really ____ and then cooked them for a long time until they were _____. Finally he put lots of salt on them so they were __________.
thin
really salty
crispy