Unit 6 When was it invented?Grammar Focus-Section B 1e 课件(共32张PPT，含内嵌音视频) 人教版英语九年级全册

(共32张PPT)
Unit 6
When was it invented
人教版九年级 Go for it
课件 3
GrammarFocus-sectionB1e
课件使用方法
n. 击弦古钢琴
Watch and Observe
1. 肯定句:
The news was published by the government.
2. 否定句:
3. 一般疑问句:
The news wasn’t published by the government.
Was the news published by the government
When was the news published by the government
一般过去时被动语态的几种句型
4. 特殊疑问句:
观察并写出句型
主语 + was/were + V-ed + (by…)
主语 + was/were + not + V-ed + (by…)
Was/Were + 主语 + V-ed + (by…)
疑问词 + was/were + 主语 + V-ed + (by…)
Our homework was handed in yesterday afternoon.
The house was fixed up by my father.
1. “不及物动词+介词 / 副词”构成的短语动词，变成被动句时，要把它们作为整体看待，介词或副词不可与其动词拆开或漏掉。如：
主动结构：Danny gave me a ticket just now.
被动结构：
A ticket was given to me by Danny just now. (直接宾语作主语)
I was given a ticket by Danny just now. (间接宾语作主语)
2. 含双宾语的主动句变被动句时：可将主动句中的直接宾语或间接宾语变为被动句中的主语。
若把主动句中的直接宾语(指物)变为被动句中的主语，则需在间接宾语(指人)前加适当的介词to或for。如:
This kind of dress sells well.
The fish tastes very delicious.
3. 有些动词常用其主动形式表示被动意义。
如sell, wash, write等和表示感觉、知觉的系动词feel, sound, taste, smell等。如：
4. 在主动句中, 使役动词(如make等)和感官动词 (如see, watch, notice, hear等)后面常接不带to的动词不定式作宾语补足语; 但在被动句中，这些词后面的动词不定式都需要带to。如：
The boss made us work for ten hours today.
→We were made to work for ten hours today by the boss.
Mom heard Ben sing in the next room.
→Ben was heard to sing in the next room by Mom.
感官动词
一感二听三让四看
主动句中to 离开，
被动句中to回来
句型转换
4a
Rewrite the sentences using the passive voice.
1. They sold the fridge at a low price.
_______________________________
The fridge was sold at a low price.
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
were brought
4b
Complete the sentences with correct forms of the verbs in the box.
eat, like, invite, tell, lock, ring, break, bring
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
eat, like, invite, tell, lock, ring, break, bring
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
How do the bread and snack taste
Sweet and delicious.
Can you think of any other flavor
salty, bitter, sour, spicy...
Section B 1a-1e
The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word.
1a
sweet
crispy
salty
sour
Write the name of a different food after each word.
1b
Read the sentences, what are they talking about Listen and circle T for true or F or false.
1c
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 ______.
Listen again. 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
Pair work
Make a conversation about the invention of potato chips. Use the information in 1c and 1d.
1e
Did you know potato chips were invented by mistake
Wow, I didn’t know that. Who invented them
It’s said that they were invented by a cook called George Crum.
When was that
Oh, it was back in 1853.
Why was it an accident
One day, a customer ordered a plate of fried potatoes. George cooked them for him. When the potatoes came, he said they were cut too thick and sent them back to the kitchen.
So what happened
George was angry, so he cut the potatoes really, really thin, and he cooked them for a long time until they were crispy. And he put lots of salt on them so they were really salty. He thought the customer would hate them.
And then
And the customer loved them and asked for more. He told the other customers about them, and soon everyone was ordering thinly cut, crispy, salty potato chips.
Potato chips were invented by mistake.
by mistake 错误地；无意中
e.g. 有人错拿了我的伞。
Somebody took my umbrella by mistake.
我错拿了你的包。
I picked up your bag by mistake.
summary
1. Preview the new words and expressions.
2. Preview the passage Do You Know When Basketball Was Invented on page 46.