文档内容
Unit 6 When was it invented?
Section B 1a-1e 教学设计
Class Type
Listening and speaking
Key words and expressions:crispy, salty, sour, by mistake, customer
Key sentences:
1.—Did you know potato chips were invented by mistake?
—Wow, I didn’t know that.
Objectives 2. Who invented them?
Difficulties and points:
To talk about what products are made of and where they are made.
To learn to understand and use the Passive Voice(past tense): be + v
(ed).
Key
1.—Did you know potato chips were invented by mistake?
structure
—Wow, I didn’t know that.
2. Who invented them?
Difficulties To talk about what products are made of and where they are made.
To learn to understand and use the Passive Voice(past tense): be + v
(ed).
Vocabulary
crispy, salty, sour, by mistake, customer
Period 3
Procedure
Present four pictures about different kinds of food, and lead students to
Lead-in
talk about what kind of food they would like, lead into the topic of this
period.
Presentation:
Teach students to learn the new words and sentence structure by presenting some
pictures of different flavors of food.
1. sweet food
A: How do they taste?
B: They taste sweet.
2. salty food
A:How do they taste?
Step 1
B:They taste salty.
3.sour food
A: How do they taste?
B: They taste sour.
4. crispy foodA: How do they taste?
B: They taste crispy.
Review the key words:
What flavor do you like?
sweet salty sour crispy
Activity 1a Listen. 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
Activity 1d Listen again. Fill in the blanks with what you hear.
1.Wei Fang is a city in Shandong. It is famous for_______ .
2.The international kite festival is held in _________ every year.
3.The competitors at the festival are from_________________.
4.There are_____________ for the best kites.
5. Some of the kites Zheng Yun saw were made of ___________ . Some
were painted with colorful ____________ .
Activity 1b Write the name of a different food after each word..
sweet ________
crispy ________
salty _________
sour ________
Step 2 Summary 1:
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
The international kite festival is held in April and it is held in Wei
Fang, Shandong. ....
2. Potato chips were invented by mistake.
薯条是无意中被发明的。
by mistake意为“错误地;无意中”。
►May you took my coat by mistake yesterday.
梅，昨天你错拿了我的外衣。
Pre-listening:
Present pictures to teach the key words: cook and customer.
Activity 1c 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.
Activity 1d Listen again Complete the sentences
Step 3 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 ___________.
Listen and choose
1. What did the customer order?
A. A plate of potatoes.
B. A plate of potatoes chips.
C.A plate of fried potatoes.
2. How did George feel after the customer sent
the potatoes back ?
A. Happy. B. Sad. C. Angry.
Fill in the mind map, then retell the story.
The When 1853
History
Who George Crum
of
Potato Why The customer said the fried potatoes were cut too thick
Chips and sent them back to the kitchen. George was angry.
How 1. Cut the potatoes really, really thin.
2. Cooked them for a long time until they were crispy.
3. Put lots of salt on them.
Result The customer loved them and asked for more.
Activity 1e 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: ... .
Summary 2:
1.The customer thought the potatoes were not thin enough. 顾客认为土豆不
够薄。
单词enough修饰名词时，不需要倒装。
如: 我有足够的钱。
其修饰形容词、副词要倒装。
这家餐厅的食物不太够好吃。
Step 4
►The food in this restaurant is not delicious enough.
他写得足够认真，以便得到满分。
►He wrote carefully enough to get full marks.
enough常可以和词组so...that，too...to转换。
如：他跑得不够快，赶不上其他人了。
用enough
►He didn’t run fast enough to catch up with the school bus.用so...that
►He ran so slowly that he couldn’t catch up with the school bus.
用too...to
►He ran too slowly to catch up with the school bus.
2.The customer was happy in the end.
顾客最终高兴了。
(1) in the end 后来，最后，终于
at the end of ... 在……末
by the end of ... 到……末为止
如：①这个月月末我们将会开个会。
►At the end of this month we’ll have a meeting.
②到去年末为止我们已经做了十架飞机了。
►By the end of last year we had made ten planes.
(2) in the end 用一个单词表达可以是 finally，用一个短语表达可以用 at
last 。
如：最后他赢了比赛。
He won the match in the end.
He won the match finally.
He won the match at last.
3.George wanted to make the customer happy.
乔治想让这位顾客高兴。
make+adj. 表示“使......处于某种状态
如：听音乐能够让我放松。
►Listening to music makes me relaxed.
makesb. do sth. 表示“让某人做某事”
如：这位父亲最后让小婴儿睡着了。
►The father made his baby sleep in the end.
Self Check:
2 Rewrite these sentences using the passive voice.
1. Someone stole my watch.
_____________________________________
2. They used five eggs to make this big cake.
______________________________________
3. When did they invent the personal computer?
______________________________________
4. They asked us not to run in the hallway.
______________________________________
5. Someone took the video back to the store.
Step 5
______________________________________
选词填空
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.
翻译句子。
1.顾客最后终于高兴了。
The customer was happy ________________.
2.这个顾客说这个薯条不够脆。
The customer said that the potato chips weren’t ____________.3.乔治想让顾客高兴。
George wanted _______________the customer ____________.
4.薯条是一个名Crum的厨师发明的。
The potato chips_____ _______ by a cook _______Crum.
5. 昨天这个厨师往鱼上面撒了许多盐。
The_____ ______lots of salt _______ the fish yesterday.
Homework:
Step 6
1. 完成课后跟踪练习;
2. 预习2a-2e，完成课前预习部分。
