(共31张PPT)
Unit 6 When was it invented
Section B ( 1a—1e )
Teaching goals
Words and phrases: crispy, salty,
sour, by mistake, customer
2.Learn to describe the food.
sweet甜的
crispy脆的
salty咸的
How do they taste
hot辣的
bitter苦的
red bayberries
杨梅
peppers
sour酸的
Presentation
cookies
lemons
candy
ice cream
tea
prune梅干
1. 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—sunny
Language Points
Translate the phrases.
spread to other countries
by accident
It is said …
over an open fire
fall into the water
take place
without doubt
流传到其它国家
偶然；意外地
据说…
在户外的火上
掉入水中；落入水中
发生
毫无疑问；的确
tea
It was first drunk about
years ago.
When Shen Nong was the drinking water, some from a tea plant the boiling water.
It there for some time, then it a nice smell and delicious. This is how tea was invented.
5,ooo
boiling
leaves
fell into
remained
produced
tasted
Review
Tea was invented
It smells nice and tastes a little bitter(苦).
How does the tea taste
by accident.
Lead-in
Different food has different taste.
hot
bitter
不可数名词
味道
The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word.
1a
sweet crispy salty sour
crispy, salty
sour
sweet
salty
sweet ____________________________
crispy ____________________________
salty ____________________________
sour ____________________________
Write the name of a different food after each word.
banana
apple
Beijing Duck
potato chips
1b
grape
candy
cookie
cheese
salted fish
lemon
Fill in each blank with the correct word given.
crispy sweet salty sour
1. 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.
sweet
salty
sour
crispy
What is the favorite food there
Fried chicken
hamburger
Coca-cola
Potato chips
What 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
1. How was it invented
By mistake.
2. Who were potato chips invented by
By a cook called George Crum.
3. When were potato chips invented
In 1853.
Listen and answer the questions :
1. When was potato chips invented
In 1853.
2. Who was potato chips invented by
By chef George Crum.
3. How was it invented
By mistake.
Listen and answer the questions :
1c
Listen and circle T for true or F for false.
The potato chips were invented by mistake.
2. They were invented in 1863.
3. The customer thought the potatoes weren’t thin enough.
4. The customer said they weren’t salty enough.
5. George wanted to make the customer happy.
6. The customer was happy in the end.
T
F
T
F
F
T
1853
thin
George wanted to make the customer hate them.
1c
Do you know that potato chips were invented by mistake 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 _______And he put lots of salt on them so they were__________.
The history of potato chips
invented
1853
crispy
really salty
Listen again. Complete the sentence.
were
thin
1d
Check the answers!
一般过去时的被动语态
基本结构：_______________
was/were+V-ed
The history of chips
Did you know that potato chips were invented (偶然的) Chips were invented a chef called George Crum. They were invented 1853.He cooked them for a long time until they (很脆）. And he sprinkled lots of salt on them so they were （真的很咸）.But these chips the customers (让某人很
高兴) .So the potato chips (发明了）.
Pair work
Make a conversation about the invention of potato chips. Use the information in 1c and 1d.
A : Do you like potato chips
A : Who invented them
A: When were them invented
A :How were they invented
A: How did that happen
1e
1) I brought other baggage by mistake.
我拿错了别人的行李。
2) I’m sorry that I took your schoolbag by mistake .
很抱歉我错拿了你的书包。
Language points
1.Potato chips were invented by mistake.
by mistake 错误地;无意中,常置于句末。
Practice
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—sunny
by mistake 意为 “错误地,无意地”
I took his backpack by mistake.
我错拿了他的书包。
mistake…for把……误认为,
make a mistake 犯错
in the end/at last/ finally最后
at the end of 在……尽头,末端
by the end of 到……末为止
thin- thick/ fat .
2. 薯片是一个名叫乔治·克拉姆的厨师发明的。
Potato chips _______ _______ _______ a cook _______ George Crum.
3. 而且他在它们上面放了很多盐。
And he _______ lots of salt _______ them.
完成句子。
1. 薯片是由于失误而被发明的。
Potato chips _______ _______ _______ _______ .
Exercise
were
invented
by
mistake
were
invented
by
called
put
on
4. 根据句意填入合适的形容词。
Candy is ______, salt is ______, vinegar (醋) is _____, and potato chips are _____.
5. 翻译下面的句子。
那个厨师错把糖放进了汤里。
The cook put sugar into the soup by mistake.
sweet
salty
sour
crispy
用所给词的正确形式填空。
1. The TV ____________ (invent) around 1927.
2. They are used for _______ (see) in the park.
3. This kite _________ (make) by Uncle Wang.
4. Tea ______________ (discover) a long time
ago.
5. Our classroom _________________
(should clean) every day.
was invented
seeing
was made
was discovered
should be cleaned
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. This 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
Write a short article about your invention.
Share your invention with others.
