Unit 9 When was it invented?Section B（1a-2c)

课件24张PPT。Unit 9
When was it invented?Section B
Period OneObjectivesTo learn to understand and use passive voice (questions and statements)
To listen and speak about how inventions were madeReviewWords and expressionsRead the words and expressions loudly.crispy
salty
sour
by mistake
chef
sprinkle adj. 脆的；易碎的
adj. 咸的；含盐的
adj. 酸的； 酸味的
错误地
n. 厨师
v. 撒（粉末状物）；
洒（液体）Free Talk
1. Do you like food, fruit and drink?
2. What kind of food, fruit and drink do
you like best?----please write them out.
3. Can you describe the tastes of them?crispy and saltyDescribe how food tastes.potato chipssour lemon sweet Ice cream sweetteasoursweetsweetcrispy, salty1asweet crispy salty sourFill in the blanks.1bbanana, apple, soda, cake, honeysalad, lettuce,french friesfrench fries, olives, pepperonipickle, grapefruit Write the name of a different food after each word.2a listen and circle “T” or “F”.1. 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.TFTTFF _____________that potato chips were invented by mistake? 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__________.The history of chipsDid you know were invented1853were crispyreally salty2b listen again. Complete the sentences.Role play the conversation about the invention of the potato chip. Use the information from the activities above.2cPairworkLanguage points The potato chips were invented by mistake.
【经典习题】完成句子：
很抱歉我错拿了你的书包。
I’m sorry that I took your schoolbag
___ ______.
【要点点拨】by mistake意为“错误地”，常置于句末。by mistake【拓展延伸】mistake作名词时，还可构成短语：make a mistake犯错误。
mistake还可用作动词，常用于mistake…for…表示“把……误认为……”。如：
I mistook Kate for her sister when I met her yesterday. Review课时重点回顾be invented by mistake, on the bag,
back in 1853, one day, in the restaurant, send… back, a plate of fried potatoes,
be cut too thick, in a bad mood, cut…really, really thin, asked for…,
cook…a long time, sprinkle…on…,
tell… about…, thinly-sliced, crispy,
salty potato chips, a cool story 根据句意和首字母提示补全单词。
There were four famous inventions in
a______ China.
2. These cars were p_______ by the
same company.
3. Don’t t_____ stones at the birds.
4. Few pears r________ on the trees after
the heavy rain.
5. I don’t like the t_____ of the meat.ncientroducedhrowemainedastePreviewTo preview the article who invented tea
To search more information about the history of teaHomeworkWrite a short passage about
the history of your favorite
food.