Unit 6 When was it invented Section B1a-1e 课件(共31张PPT)

(共31张PPT)
Section B
1a-1e
What kind of food do you like
Sweet food
salty food
Sour food
Crispy food
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
__________
_____
_____
_____
crispy
salty
sour
sweet
salty
1a
Write the name of a different food after
each word.
sweet ________
crispy ________
salty ____________
sour ________
banana
biscuit
potato chips
orange
1b
Listen and circle T for true or F for false.
1. Potato chips were invented by mistake. T F
2. They were invented in 1863. T F
3. The customer thought the potatoes were not
thin enough. T F
4. The customer said they were not salty enough.
T F
5. George wanted to make the customer happy.
T F
6. The customer was happy in the end. T F
1c
Listen again. Complete the sentences.
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 _____ . 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 invented
1853
thin
crispy
really salty
1d
Make a conversation about the invention
of potato chips. Use the information in 1c and 1d.
A: Did you know potato chips were invented
by mistake
B: Wow, I didn’t know that. Who invented
them
A:...
1e
Talk about other food you know. How were they invented
Free Talk
Do you know how sandwich was invented
It is said the sandwich was invented in England in the 18th century by John Montagu, 4th Earl of Sandwich.
He asked his servants to prepare a chunk of meat between two slices of bread, so that he could carry on gambling without stopping to eat.
Do you know how post-it notes were
invented
Inventor: Spencer Silver, a researcher in 3M Laboratories
What he was trying to make: A strong adhesive (粘着剂)
How it was created: While working away, Silver created an adhesive that was actually weaker than what already existed. It stuck to objects but could be pulled off easily without leaving a mark. Years later a colleague spread the substance on little pieces of paper to mark his place in his choir (唱诗班) hymn book (赞美诗集), and the idea was born.
Do you know how corn flakes were invented
1. by mistake 错误地
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。
Language points
mistake
1. n. 错误
I used to make mistakes in spelling．
我过去常常犯拼写错误。
2. v. 弄错; 误解
You mistook my meaning entirely.
你完全误解了我的意思。
mistake ... for ... 错把……当成……
Don't mistake me for an American.
不要把我误会成美国人。
by mistake与by accident
1) by mistake意为“错误地”
I took her umbrella by mistake last night
because they are the same style．
昨晚我错拿了她的雨伞，因为它们的样式一样。
2) by accident意为“偶然地；意外地”
The idea came to him by accident．
很偶然地他想到了这个主意。
知识链接
I’m sorry to take your umbrella _______
yesterday; here’s the umbrella． A. by accident B. by the way
C. by guess D. by mistake
解析：by accident意为“偶然地”，by
mistake意为“错误地”，by the way“顺便提
一下”。本句意为“很抱歉我昨天错拿了你的雨伞，这是那把雨伞”。
D
【江苏无锡】完成句子
别再犯如此愚蠢的错误了，否则你只能另谋高就了。
Don’t _____________________________, or you will have to find another job.
make such silly mistakes any more
/ make such a silly mistake any more
【湖北黄石】Ⅵ. 完成句子
抱歉，我错拿了你的包。 Sorry, I took your bag ______ ______ .
【甘肃兰州】根据所给汉语提示完成下列句子。
那个小孩在登山中意外地摔伤了腿。
That child broke his leg ______ _______ when he was climbing the mountain.
by mistake
by accident
2. in the end 最后，终于 (相当于finally 或 at last)
In the end, they found their teacher.
最后，他们找到了他们的老师。
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”
They can finish the work by the end of this month.
到这个月底的时候，人们能完成这项工作。
知识链接
at the end of可以指时间，也可指处所，意为“在……尽头，在……结束时”。
At the end of the road, you can see the shop.
在这条路的尽头，你能看到那家商店。
At the end of last term, we had an English
exam.
上在学期结束时，我们举行了一次英语测试。
他在花园的尽头的那边。
He is down _______________ the garden.
最后，我们找到了这座房屋。
______________ we found the house.
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 of
In the end
By the end of the war
单项选择
1. -Sorry, I took your umbrella ______ mistake.
-It doesn’t matter.
A. with B. by C. at D. in
2. I know that potato chips ______ by George Crum.
A. invented B. was invented
C. are invented D. were invented
B
D
3. Mom added salt to the soup, but it still wasn’t _______ .
A. enough sweet B. sweet enough
C. salty enough D. enough salty
4. The kind of soup should be boiled _______ a long time.
A. for B. in C. with D. at
C
A
5. Hold on to your dreams, and they may come true _______ .
A. at the end B. by the end
C. in the end D. on the end
C