北师大(三起)三年级英语下册课件 unit 12 Review(3)

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名称 北师大(三起)三年级英语下册课件 unit 12 Review(3)
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资源类型 教案
版本资源 北师大版
科目 英语
更新时间 2013-01-30 16:57:30

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课件25张PPT。soursweetsweetsoftbitter sweetsoftsalty1a. Fill in the blanks with the words given.soursweet, crispy, salty, soursalty sweet
sweet1b. Write the name of a different food after each word.sweet:
crispy:
salty:
sour:banana, apple, cake
potato chips, salad
pizza, french fries, olives
grape, lemon, pickle, grapefruit2a. Listen and circle “T” or “F”.1. 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. TFTFFT The history of potato chips
_____________ that potato chips were invented by mistake? Potato 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 _____________. Did you know were invented1853were crispyreally salty2b. Listen again and complete the
sentences. 2c. Pairwork 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
chef called Geroge Crum.3a.Read the article and answer the questions.Who invented tea?1. What is the article about?
2. When was it invented?
3. Who was it invented by?

4. How was it invented? It is about the invention of tea. It was invented over three thousand years.It was in invented by the Chinese emperor, Shen Nong. It was invented by accident.Match them into sentences. The teawasn’t brought to the western world until 1610. Shen Nongwas boiling drinking water over an open fireSome leavesfell to the waterThe emperordecidedto taste the hot mixture3b. Write an article using the notes in the box.A sample version From pie plate to flying disk
The flying disk was invented by college students.
Flying disk is a metal pie plate. In the 1950s, several
college students ate pies made by a bakery in
Bridgeport, Connecticut. They found it interesting to
throw the pie plates with each other. Then it became
a game. Today, there are flying disk clubs, magazines
and even a festival. 4a. Think of something that you don’t like doing. Then think of an invention that could help you.Write the details in the chart. Problem: we often get hurt by the hot
water in the cup.
New invention: a cup that can tell you the
temperature of the water.
Use: It can show the temperature of the water.
Price: $ 50Explanation 1. Potato chips were invented by mistakes.
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. 3. Did you know that tea…was invented by
accident?
by accident “偶然地,碰巧”。同义词组
是by chance,同义词是accidentally, 反义
词组是on purpose. 4. Although tea wasn’t brought to the western world until 1610, …
(1) although 作连词, 意为 “虽然,尽管”,引导让步状语从句, 我们不能根据汉语习惯, 在后面使用连词but, 不过它可以与yet, still连用; e.g. Although he is very busy, he always talks with us.(2) not…until 意为 “直到……才”until 引导一个时间状语从句。
I did not go to bed until I finished my homework.
5. According to an ancient Chinese legend, the emperor Shen Nong discovered tea…
(1) according to 是个短语介词,意为 “根据……;依照……”后接代词,名词或由疑问词以及whether引出的名词性从句。e.g. According to the radio, it will rain
tomorrow.
(2)discover意为“发现”,指发现的对象是
本来存在的。
find意为“找到”,强调结果。
invent意为“发明”,发明的对象是以前没
有的东西。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 seeingwas made was discoveredshould be cleaned