课件31张PPT。Section B 1a-1espread to other countries
by accident
It is believed that …
over an open fire
fall into the water
take place
without doubt
all of a sudden流传到其它国家
偶然；意外地
据认为…
在户外的篝火上
掉入水中；落入水中
发生；出现
毫无疑问；的确
突然Review of "An accidental invention"What did they eat? Ice-cream.What did the dog think of the ice-cream? Sweet, cool, and delicious!Warming upSalty(咸的)It tastes bitter.It tastes salty.How does it taste? bitter (苦的)It tastes hot.It tastes sour.How does it taste? sour(酸的)hot(辣的)It tastes crispy.It tastes sweet.How does it taste? sweet(甜的)crispy(脆的)Words to describe the food.soursweetbitterhotsaltycrispy1a1a The words in the box describe how food can
taste. Write them under the correct pictures.
Some pictures have more than one word.sweet crispy salty sour_________________________crispysaltysoursweetsaltyFill 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.sweetsaltysourcrispysweetIce creamcakehoney1bcrispypotato chipsbiscuitscookiessaltypotato chipspizza hamburgersourlemonstrawberry tomatoMacdonaldQ: Who has been to Macdonald?
What is the favorite food there?Fried chickenhamburgerCoca-colaPotato chipsWhat are needed?The potatoes are cut very thin.They were cooked for a long time
until they were crispy.A lot of salt are put on them.How to make potato chips?Do you like ? Why or why not? potato chipscrispy and saltyThe history of potato chipsThey were invented by a cook called George Crum one hundred years ago.But he invented them by mistake.Do you know the history of potato chips?= a century=by accident/kr?m/1c. Listen and circle “T” or “F”.T F T F1c 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 FT FT FT F1853were too thicknot mentionedHe was so angry…ask for moreWhat happened then?The history of potato chipsDid you know how potato chips were invented? Potato chips ________________ by a cook called George Crum. They were invented in ______. 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 _____________.were invented1853thincrispy1d Listen again. Complete the sentences.really salty1. Who invented potato chips? 2. When were they invented?3. What did the custom order at the restaurant?Read the tape script and answer the questions. 4. What did the custom think of the potato chips George cooked at first? 5. How did George cook the potatoes then?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 customer loved them so much that he asked for more. he told---. So - ordered----As a resultHe thought the customer would hate them.Why by accident, ----sent back---, because---. But ---in a bad mood, so ---cut----and cooked ---for---until----.And---put ---on ---so-----.How a cook called George CrumWho in 1853WhenSpeaking:
Ladies and gentlemen, let me tell you something about the history of potato chips. They …1e . Pair work A: Did you know
potato chips were invented
by mistake?
B: Wow, I didn’t know that.
Who invented them?
A: It was invented
by a cook called Geroge Crum.
……Explanation 1. Potato chips were invented by mistake.
mistake 作名词 “错误，误会”。也可以作动词 “弄错，犯错”。常见形式有：
make a mistake 出错
e.g. You have made a mistake here.
mistake…for… 错把……当作……
They mistook him for his brother.
by mistake 错误地
e.g. They sent the letter to me by mistake. 2. salty 咸 的
salty (tasting of salt) 形容词，意为“咸的；含盐的”，是由名词salt(盐)加后缀-y构成的。
?The soup is a little salty for me.
汤对我来说有点咸了。
名词+后缀-y构成的形容词：
luck—lucky health—healthy wind—windy rain—rainy taste — tasty ice —icy
snow —snowy sun—sunny3. in?the?end 最后，终于 (相当于finally 或 at last)
I was saved in the end.我最后获救了。by?the?end常和of相连，用于指时间，意为“到……底(末)为止”at?the?end?of可以指时间，也可指处所，意为“在……尽头，在……结束时”。 1.他在花园的尽头的那边。
He is down _______________ the garden.
2.最后，我们找到了这座房屋。
______________ we found the house.
3.到战争结束时, 这个小铺子已经变成有728个工人的大厂了。
_____________________, the small work-shop had become a large factory with 728 workers.at the end ofIn the end By the end of the war1.Go over the history of chips in 1a & 1d 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
