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Unit 9: When was it invented?
Section A, 1b
Alice: Life must have been difficult when you were a kid.
Woman: Oh, not really. Why do you say that?
Alice: Well, you didn't have many modern inventions. Like, you probably didn't have a
telephone, right?
Woman: Of course we did! How old do you think I am? The telephone was invented in 1876. Alice: How about cars? I bet cars weren't invented yet.
Woman: Sure they were. Cars were invented in 1885. My family had a car. I think you need to
take a history class, Alice.
Alice: Ha, ha! Well, did you have a TV?
Woman: No, we didn't. The TV was invented around 1927, I think. Some friends of mine had one.
But in those days, TVs were really expensive, and we couldn't afford one.
Alice: And I bet you didn't have calculators and computers and stuff. That's something I do
know. We learned in school that handheld calculators were invented in 1971 and personal computers were invented in 1976.
Woman: You're right. I didn't have those things when I was young. But I do now!
2a, 2b
Boy: What are those?
Girl: They're battery-operated slippers.
Boy: What are they used for?
Girl: They're used for seeing in the dark.
Boy: Oh, that's cool! Who were they invented by?
Girl: Julie Thompson. And look at this heated ice cream scoop.
Boy: I know what it's for! It's used for scooping out really cold ice cream.
Girl: Right. It was invented by Chelsea Lanmon.
Boy: My favorite are those shoes with adjustable heels. You know - you can move the heels up
and down. They were invented by Jayce Coziar and Jamie Ellsworth.
Girl: And what are they used for?
Boy: Well, you can change the style of your shoes. You can make the shoes go from casual to
dressy.
Section B, 2a, 2b
Boy 1: Hey, did you know that potato chips were invented by mistake?
Boy 2: Really? What do you mean?
Boy 1: Well, here on the bag it says that they were invented by a chef called George Crum. Boy 2: When was that?
Boy 1: Oh, it was back in 1853.
Boy 2: So, why was it an accident?
Boy 1: Well, one day a customer in the restaurant where George worked sent back his plate of
fried potatoes because he said they were cut too thick.
Boy 2: So what happened?
Boy 1: Well, George was in a bad mood, so he cut the potatoes really, really thin, and he cooked
them for a long time until they were crispy. And he sprinkled lots of salt on them so they were really salty. He thought the customer would hate them.
Boy 2: And?
Boy 1: And the customer loved them and asked for more. He told the other customers about them, and soon everyone was ordering thinly-sliced, crispy, salty potato chips.
Boy 2: And we're stil1 eating them today. What a cool story!
Boy 1: Yeah.
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