《When was it invented?》PPT课件23

Words and expressions

adj. 脆的；酥脆的   /'krispi/ crispy

adj.咸的    /'sɔ:lti/salty

adj. 酸的；有酸味的   /'sauə(r)/sour

    错误的；无意的  by mistake

n. 顾客；客户   /'kʌstəmə(r)/customer

   奥林匹克运动会  /ə'limpiks/the Olympics

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1a The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word.

1b Write the name of a different food after each word.

sweet  ________

crispy ________

salty   ____________

sour   ________

1c 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

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Listen and answer the questions. 

1. Who invented potato chips? 

They were invented by a cook called George Crum. 

2. When were they invented?

In 1853.

3. What did the customer order at the restaurant?

He ordered a plate of fried potatoes. 

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Language Points

 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

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”。

►Maybe somebody took it by mistake.

可能有人错拿了它。

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I. 单项选择。

1.(2013•南宁) Don’t drink the soup. It smells _____.

A. nice    B. delicious    C. salty     D. terrible

2. (2013 •黔东南州）About over 80 years ago, Mickey Mouse first ed in the cartoon. ____

A. more than     B. less than 

C. at most       D. at least

3. (2013 •齐齐哈尔）The Great Green Wall can stop the wind and sand _____ to the rich land in the south of China. 

A. move    B. to move    C. from moving

4. Miss Wang divided her students _____ two groups.

A. for   B. into    C. at    D. from

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II.用所给词的适当形式填空。

1. Now computers are widely used in our ______ (day) lives.

2. He mentioned _________ (hear) from her often.

3.The soup is very _______ (salt) because my mother put lots of _____ (salt) on it.

4. Since then, the ___________ ( popular ) of basketball has risen quickly.

5. I have worked here for _______(near) two years.

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Homework

1. Read the text again. Try to conclude the passage with your own words. 

2. Memorize the new words and expressions in this lesson.

《When was it invented?》SectionD MP3音频课件 文件内包含本课教学使用的MP3音频文件，非常适用于本课教学。

《When was it invented?》SectionC MP3音频课件 文件内包含本课教学使用的MP3音频文件，非常适用于本课教学。

《When was it invented?》SectionB MP3音频课件 文件内包含本课教学使用的MP3音频文件，非常适用于本课教学。