Unit 9 When was it invented?Section B

课件51张PPT。
When was it invented ?Unit 9 Period 3　　　　　　　　　　　汉译英。
（1）计算机是何时发明的？
（2）谁发明了计算机？
（3）计算器是用来做什么？
（4）你认为什么是最有用帮助的发明？
（5）每天它能够给人们更多时间工作和玩。 1. When was the computer invented?2. Who was the computer invented by?3. What’s the calculator used for?4. What do you think is the most helpful invention?5. It gives people more time to work and play
　every day.Revision:Writing1.We need an__________(调整) desk lamp
2.An electric torch is used for ______(see) in
the dark .
3.My bike was _______(mend) yesterday.
4.Why are English words ________(write) on
these things? adjustable seeing mended written1.Is this doll used ______your friend’s
birthday gift?
A .to B. by C. in D. as
2.--Your new dress looks beautiful. Is it ____silk?
--Yes, and it’ s_______ Suzhou.
A .made by , made for B. made of , made by
C .made of , made in D. made by, made fromD C 3.He is often heard _________playing the piano.
A. practicing B. practice C. practices D. to practice
4.By ____was the door left open?
A .who B. whom C. what D. why
5.They asked the room ______.
A .to be cleaned B. to clean
C. being changed D. cleanD B A interest, have ,visit, build, tell,
think, before, use, know, killLast weekend Jim went to History Museum. Jim___ a happy time there. The museum ________in1980.There were many _________things there. Jim ______the most interesting thing was sword. Jim said he had never seen it______. Jim _______ that the sword was made of iron and it was _____for ______enemies. Jim said he __________a lot about Chinese history and his memory of the ______would last forever. had was built interesting thought beforeused killing had known visit was toldPAIRWORKSample dialogue 1:
A：What do you think is the most
helpful invention?
B：I think the most helpful
invention is the light bulb.
A：Why is that? (Why do you think so?)
B：Well, it gives people more time
to work and play every day.3b.PAIRWORKSample dialogue 2:
A: What do you think is the most helpful invention?
B: I think the most helpful invention is the car.
A: Why is that?
B: Well, it makes it possible for people to move to distant places faster. 3b.PAIRWORKWhat do you think is the most
helpful invention?What do you think is the most
helpful invention?Sample dialogue 3:
A: What do you think is the most annoying invention?
B: I think the most annoying invention is the atomic bomb.
A: Why is that?
B: Well, it gives people more power to kill others.3b.PAIRWORKSample dialogue 4:
A: What do you think is the most
annoying invention?
B：I think the most annoying invention is the alarm clock.
A：Why is that? (Why do you think so?)
B ：Because it wakes me up when I’m sleeping.3b.PAIRWORKa pen that listens and writesNew invention:Use:It can listen to the writer and
write by itself.Price :$ 50music candleactivity glassestemperature cupGroupwork (4: P70) What would you do if you are alone on a tiny island? Imagine that you are alone on a tiny island. Choose one invention you would like to have on the island with you. Tell the group what you chose and why. Sample dialogue 1:
A: I’d like to have a radio because I
could listen to music all day.
B：Yes, but that’s not going to help you leave the island. I think it would be better to have a boat. Then you can leave the island by boat.
A：Possibly you are right.Sample dialogue 1:
A: I’d like to have a monkey because it can pick some fruits for me.
B：Yes, but what if there isn’t enough fruit trees on the island? I think it would be better to have lots of food. Then you can have something to eat before people come to save you.
A：Maybe you are right.I’d like to have a …because I could…
It’s used for…
I think the most helpful invention is …
But that’s not going help you leave the island.
I think it would be better to have a/an…you can use the following sentences:.sour -How do they taste?
-They taste…lemonsDescribe how food tastessour -How do they taste?
-They taste…plumscrispy and salty-How do they taste?
-They taste…potato chips脆的　　　咸的 sweet -How does it taste?
-It tastes…ice cream sweet -How does it taste?
-It tastes…English tea苦瓜bitter-How does it taste?
-It tastes…peppers-How do they taste?
-They taste…hot sweet crispy -How do they taste?
-They taste…cookiessweetcrispysaltysweetsourbitterWrite down the words to describe how the food tastes. : Write the name of different foods after each word.sweet __________banana apple orange cake sugar…crispy__________salty __________sour __________French fries cookies salad popcorn …popcorn pizza salt…plum grape orange vinegar（醋）… Self Check Fill in each blank with the correct word given.crispy sweet salty sour1. I don’t like eating chocolate. The taste is too
.
2. Mom added salt but it still wasn’t
enough.
3. I prefer lemons to oranges. I like the
taste.
4. She likes cookies. They are hard,
dry and easily broken.sweetsaltysourcrispy-What kind of food do you like?-I like food that tastes…
crispy
salty
sour
sweet
bitter
hota chef = a cookI think a good chef can cook a lot of delicious food.
And they often invent some new food.Who can make delicious food?Maybe he is cooking something delicious.Now he is sprinkling some salt on the pancake.sprinkle sth on sth把…撒在…上The history of the potato chipsThey were invented by a chef called George Crum one hundred years ago.But he invented them by mistake.错误地 Listen and circle “T” or “F”.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 F listen and complete the sentences
The history of potato 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 saltyA: Did you know potato chips were invented by mistake?
B: Wow, I didn’t know that. Who invented them?
A: …Read 2b,finish the chart and make dialogues.George CrumIn 1853By mistake. Cooked, sprinkled… on, salty
Boy 1: Hey,did you know that potato chips
were invented by mistake?
Boy 2: Really? What do you mean?
Boy 1: Well, here on the bag it says that
they were invented by a chef called
George Crum.
Boy 2: When was that?
Boy 1: Oh, it was back in 1853.
Boy 2: So, why was it an accident?
Boy1:Well, one day a customer in the restaurant
where George worked sent back his plate of fried
potatoes because he said they were cut too thick.
Boy 2: So what happened?Section B2a,2b厨师错误地Section B2a,2bBoy 1: Well, George was in a bad mood, so he cut the potatoes really, really thin, and he cooked them for a long time untill they were crispy. And he sprinkled lots of salt on them so they were really salty. He thought the customer would hate them.
Boy 2: And?
Boy 1: And the customer loved them and asked for more. He told the other customers about them, and soon everyone was ordering thinly-sliced, crispy, salty potato chips.
Boy 2 :And we are still eating them today. What a cool story!
Boy 1: Yeah.Tape Scripts:Language point1.The custom said they weren’t salty enough.
这个顾客说菜不够咸.
(1)said 后是宾语从句,省略了that.当宾语从句主句用一般过去时,从句也要用过去的某种时态.(2)enough修饰形容词或副词时应后置.如:
The little child was not old enough to go to school.这个小孩太小了,不能去上学.
但enough 修饰名词时,可以放在名词之前.如:
I have enough money to buy it.2. Potato chips were invented by mistake.由于错误,薯片被发明了.
Mistake 做名词,意为 “弄错,误解”如:
You have made a foolish mistake.你犯了一个愚蠢的错误.Mistake 作动词,意为 “弄错,误解”如:
She didn’t speak very clearly so I mistook what she said.她讲的不清楚,所以我误解了她的话.
by mistake 意为 “错误地,弄错地”.
I took his backpack by mistake. 我错拿了他的书包．
He put salt in her cup of tea by mistake.他错把盐放进她的茶里．Let’s eat healthy foodKFC food is junk food, because it’s unhealthy. Try to eat less this kind of food, or you will get fatter.I want to invent a kind of food. It is as ______ as sugar. It is as _______ as potato chips. It is a little _______ like lemons. But I won’t _______ too much salt on it. I don’t want it to be too _____. I think one day I will invent it by ________.sweetcrispysoursprinklesaltymistakeHave a try: if I were a chefInvent a kind of food that is not only delicious but also healthy.Your good advice is always appreciated!Thank you!-What kind of food do you like?-I like food that tastes…
salty咸的,含盐的
sweet甜的
crispy易碎的,脆的
sour酸的,酸味的bitter 苦的
hot 辣的
awful 可怕的
nice 好的
delicious 美味的
Pairworksweet  crispy salty sour potato chipssourlemonice creamsweetteasweetcrispy, salty
Listen and circle “T” (for true) or “F” (for false). 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 F _____________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__________.The history of potato chipsDid you know were invented1853were crispyreally salty2bListen again. Complete the sentences.B: When were they invented?
A:
B: How were they invented?