课件29张PPT。Section B: 1a-2cUnit 9 When was it invented? Period 4What inventions can you think of?inventionsold inventionselectric stuffsfoodtransportationBrain Storm sweet 甜的-How does it taste ( [teist] 品尝) ?
-It tastes…ice cream What is it called in English? -How does it taste?
-It tastes…English teaWhat is it called in English? sweet 甜的 sweet 甜的-How do they taste?
-They taste…What are they called in English?cookiessour-How do they taste?
-They taste…lemons
What are they called in English ?-How do they taste?
-They taste…plumssourWhat are they called in English ?red bayberries salty-How do they taste?
-They taste…crispy and salty-How they taste?
-They taste…potato chipsWhat are they called in English ?脆的,易碎的咸的,含盐的-How they taste?
-They taste…What are they called in English ?peppers hot 辣的-How does it taste?
-It tastes…bitter a bottle of beer 一瓶啤酒What is this?sweetcrispysaltysweetsourbitter(苦的)Tell what they are and how they taste.potato chipslemonice creamteaWrite the name of a different food after each word.sweet __________banana apple orange cake sugar…crispy__________salty __________sour __________French fries salad lettuce popcorn pizza salt…lemon plum grape…1bSelf Check Fill in each blank with the correct word given.crispy sweet salty sour1. I don’t like eating chocolate. It tastes 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…
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
Do you like ? Why or why not? potato chipscrispy and saltyThe history of potato chipsListen 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 F2aThe history of chips that potato chips were invented by mistake? Potato 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 knowwere1853were crispyreally saltyListen again. Complete the sentencesinvented撒（粉末状物）洒（液体）厨师2bAnswer the following questionsWho were the potato chips invented by?
2. When were they invented?
3. How were they invented?They were invented by George Crum.They were invented in 1853.They were invented by mistake.Role play the conversation about the invention of the potato chips. Use the information from the activities above.A: Did you know potato chips were
invented by mistake?
B: Wow, I didn’t know that.
Who invented them?
A: 2cPairworkA: what do you want to order?
B: I want a hamburger, potato chips and coke.
A: why?
B: because it is/ they are …GroupworkReport like this:
My friend … wants to order… because it is / they are…
GroupworkI 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 ________.saltyIf I were a chefKFC food is junk food, because it’s unhealthy. Try to eat less this kind of food, or you will get fatter.sweetcrispysoursprinklesaltymistake达标练习：一、用所给动词的适当形式填空(50分）。
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 madeis knownare washedto cutkeepingArewrittento buycleaningExercises1. Wood can be used for _________ (make) tables.
2. The jacket is _________(make) of cotton.
3. Where are Oranges _______ (grow)?
4. English is _________ (speak) all over the world.
5. Knives are used for _______ (cut) things.
6. Trees are _________ (plant) in spring. makingmadegrownspokencuttingplanted
1. Wood can be used for______ paper.
A. making B. to make
C. made D. make
2．-Do you think the light bulbs were invented _____?
–No, I don’t thing so.
A. by mistakes B. by mistake
C. for mistake D. with mistakesA B
1. 电拖鞋是什么时候发明的？
When _____ the electric ________ invented?
2. 它们是由谁发明的？
______ were they invented ______?
3. 妈妈加了盐，但它仍然不够咸。
Mom added salt but it still wasn’t _____ _______.wereslippersWhoby salty enough 1.Go over the history of chips in 2a & 2b and write a short essay about it.
2.Look for the invention of tea by the Internet or reading the books. Then copy the information on paper. Homework
