Ⅰ. Choose the proper words from the box and complete the sentences.
从方框中选择恰当的单词，完成下列句子。每空一词，每词只用一次。

1. This supermarket is crowded. It is full of .
2. A cook George Crum invented potato chips.
3. The soup is very because my mother put a lot of salt in it.
4. Jim is so careless that he often makes in his homework.
5. These oranges are still green and they taste .
6. I like potato chips very much, because they are and salty.

Ⅰ . 1. customers 2. called 3. salty 4. mistakes 5. sour 6. crispy

Ⅱ. Look at the picture of 1c and answer the questions. 看 1c 图片，回答下列问题。
1. What are the two boys talking about?

2. Do you like potato chips? Can you describe how potato chips taste?

Ⅲ. Read the tapescript of 1c, 1d and complete the passage.
阅读 1c 和 1d 的听力录音材料，完成下面短文。每空词数不限。
Do you know how potato chips were invented? Potato chips were invented . They were invented by a cook called George Crum.
It in 1853. One day, a customer came into the restaurant. He ordered a plate of fried potatoes, but he said they were too thick and to the kitchen. George was angry, so he cut the potatoes really thin, and he cooked them until they were really crispy. He also them so they were really salty. The customer loved them and , and soon everyone was ordering thinly cut, crispy, salty potato chips. We're still eating them today.

Ⅲ. by mistake, was back, sent them back, for a long time, put lots of salt on, asked for more