Unit 6 When was it invented?Section B 1a-1e课件(共19张PPT)

(共19张PPT)
Unit 6
When was it invented
Section B (1a-1e)
The telephone was invented by Alexander Graham Bell. He was born in 1847. Mr. Bell worked on the invention of the telephone with Thomas Watson. In 1875, Mr. Bell learned how to send musical notes through an instrument similar to a telephone. Finally, the telephone was invented in 1876. The first sentence that was said on the telephone by Mr. Bell was "Mr. Watson, come here; I want to see you."Today the telephone is used around the world.
Tea was invented___________.
Lead in
How does tea taste
It smells nice and tastes a little bitter.
by accident
How will the bread and snack taste
Sweet and delicious.
Can you think of any other flavor
Salty, hot, bitter, sour, fresh …
sweet甜的
crispy脆的
salty咸的
How do they taste
hot辣的
bitter苦的
red bayberries
peppers
sour酸的
Presentation
cookies
crispy
lemons
sour
sweet
candy
salty
ice cream
tea
delicious
nice
awful
prune
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
cold
delicious
sweet crispy salty sour
salty
adj. 脆的；酥脆的
adj. 酸的
adj. 咸的
fresh
sweet ____________________________
crispy ____________________________
salty ____________________________
sour ____________________________
Write the name of a different food after each word.
banana
apple
Beijing Duck
potato chips
grape
candy
cracker
cookie
salt
salted fish
lemon
1b
Can you tell me what they are
Do you like them
Do you want to know more about them
1c Listen and circle “T” (for true) or “F” (for false).
1.Potato chips were invented by mistake.
2.They were invented in 1863.
3.The customer thought the potatoes were not
thin enough.
4.The customer said they were not salty enough.
5.George wanted to make the customer happy.
6.The customer was happy in the end.
T F
T F
T F
T F
T F
T F
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
1. Who invented potato chips
2. When were they invented
3. What did the customer order at the restaurant
a cook called ...
in 1853
a plate of…
4. What did the customer think of the potato
chips George cooked at first
were cut too thick
5. How did George cook the potatoes then
..cut…really, really thin and…for a long time until ..
. … put … on …, so ...
1e
Pair work
1. salty adj. 咸的
【语境领悟】
*The customer said they were not salty enough.
顾客说它们不够咸。
*You put too much salt in the soup and it’s too salty.
你在汤里放的盐太多, 它太咸了。
【自主归纳】 salty的用法
salty为形容词, 意为“咸的, 含盐的”, 是由“名词salt+-y”构成的形容词
【归纳拓展】 “名词+-y”构成的形容词
在英语中, 很多名词后加-y可以构成形容词。例如: cloud—cloudy, wind—windy, rain—rainy, sleep—sleepy等。
【学以致用】
①—Is the dish__________ (salt)enough
—Yes, it is.
②—What’s the weather like in Shanghai today
—It’s__________ (wind).
salt
windy
链接新知
2. by mistake错误地; 无意中
【语境领悟】
*Potato chips were invented by mistake.
薯片是无意中被发明的。
*Sally deleted an important file by mistake just now.
萨莉刚才误删了一份重要的文件。
【自主归纳】by mistake的用法
by mistake意为“错误地;无意中”,是介词短语,常在句中作状语。
【归纳拓展】 由mistake构成的其他短语
(1)make a mistake/make mistakes意为“犯错; 出错”,是动词短语,表示“在某方面犯错”用介词in。
I often make mistakes in grammar. 我常在语法方面出错。
(2)mistake. . . for. . . 把……错认成……
I mistook Lily for Lucy yesterday.
昨天我错把莉莉当成了露西。
【学以致用】
①我错拿了你的钢笔。
I took your pen__________ __________ .
②别再出错了。
Don't__________ __________ any more.
by mistake
make mistakes
3. in the end最后
【语境领悟】
*The customer was happy in the end.顾客最后很高兴。
*He tried many times, and finally succeeded.
他实验多次,最后成功了。
*At last I obtained my wish.我的愿望终于实现了。
*In the end,Wang Ping got to the village.
最后王萍到达了那个村庄。
【自主归纳】 in the end的用法
(1)in the end意为“最后; 终于”,相当于finally或at last,在句中作状语。
(2)in the end是一个独立的短语,不与of连用,可放在句末,也可置于句首,此时常用逗号与句子分开。
【归纳拓展】 由end构成的其他短语
(1)at the end of意为“在……终点;在……结束时”,后接表示地点或时间的名词。
Walk along the street and you’ll find the hospital atthe end of the street.沿这条街往前走, 在街的尽头你就会找到那家医院。
We'll have an English test at the end of this week.
这个周末我们要举行一次英语测试。
(2)by the end of意为“到……末为止”。
This building will be finished by the end of this year.
这座楼将于今年年底竣工。
【学以致用】
他最后终于回到了家。
He got back home__________ __________ __________ .
in the end
用所给动词的适当形式填空。
1. This kind of TV set (make ) in that factory .
2. The Great wall 　(know) to the people all over
the word
3.They use knives (cut )things.
4.My clothes (wash ) once a week .
5.What`s it used for For (keep) off the rain.
6. the books (write) in English
Yes, they are.
7. I can`t decide which book (buy ).
8. They are busy (clean)the classroom.
is made
is known
are washed
to cut
keeping
Are
written
to buy
cleaning
随堂检测
Summary
重点词组：1.by mistake 2.thin enough
3.salty enough 4.in the end
重点句型：
1.Potato chips were invented by mistake.
2.The customer thought the potato were not thin enough.
3.The customer said they were not salty enough.
4.George wanted to make the customer happy.
5.The customer was happy in the end.
重点语法：passive voice：
Potato chips were invented by mistake.