Unit 6Section A1b Listen and match the inventions with the years.Alice: Was your life very difficult when you were a kid?Grandma: Oh, not really. Why?Alice: Well, you didn’t have modern inventions like a telephone, right?Grandma: Of course we did! How old do you think I am? The telephone was invented in 1876. You need to take a history class, Alice!Alice: Haha! How about cars? They weren’t invented yet, were they?Grandma: Yes, they were. Cars were invented in 1885. My family had a car.Alice: Well, did you have a TV?Grandma: No, we couldn’t afford one. They were expensive in those days. The TV was invented around 1927, I think.Alice: Well, I know that you didn’t have a computer because we learned in school that personal computers were invented in 1976.Grandma: You’re right. But I have one now!1b 听录音，把发明和年份搭配起来。
艾丽斯：你小时候生活很难吗？奶奶：哦，不是很难。
怎么了？艾丽斯：噢，你们没有像电话这样的现代发明，对吗？奶奶：我们当然有！你认为我有多老？电话是在1876年发明的。
你要上历史课了，艾丽斯！艾丽斯：哈哈！那么汽车呢？它们还没有发明，对吗？奶奶：不，发明了。
汽车是在1885年发明的。
我家里有一辆汽车。
艾丽斯：好吧，你们有电视机吗？奶奶：没有。
我们买不起。
它们在那个时代很贵。
我想电视机是在大约1927年发明的。
艾丽斯：嗯，我知道你们没有电脑，因为我们在学校里学过个人电脑是在1976年发明的。
奶奶：对。
但现在我有一台！2a Listen and number the inventions ［1-3］in the order you hear them.Alex: Hi, Carol. Wow, what are those?Carol: Hello, Alex. Oh, these are some of the interesting inven tions that I’m writing about for my English homework.Alex: I see…What’s that, then?Carol: They’re shoes with lights. People use them for seeing in the dark when you get up at night. Alex: Oh, that’s a cool idea! I always hit my toe on something on the wa y to the bathroom at night.Carol: Next is a special ice-cream scoop. This is my favorite invention. It runs on electricity and becomes hot.Alex: I know what it’s for! It’s use d for serving really cold ice-cream.Carol: Yes, that’s right! The last invention I’m going to write about is shoes with special heels. You can move the heels up and down.Alex: What are they used for?Carol: Well, you can change the style of your shoes. You can raise the heels if you are going to a party or lower them if you are just going out for shopping.2a 听录音，按你听到它们的顺序给这些发明编号［1~3］。
亚历克斯：你好，卡罗尔。
哇，那些是什么？卡罗尔：你好，亚历克斯。
哦，这些是我要在英语作业中写到的一些有趣的发明。
亚历克斯：我知道了……那么，那是什么？卡罗尔：它们是带灯的鞋。
当晚上起床时，人们用它们在黑暗中看东西。
亚历克斯：哦，那是一个很酷的主意！我总是在晚上去卫生间的路上碰到脚趾。
卡罗尔：接下来是一个特别的冰激凌勺。
这是我最喜爱的发明。
它靠电运行，接着变热。
亚历克斯：我知道它的用途！它是用来加热非常凉的冰激凌的。
卡罗尔：是的，正确！我要写的最后一项发明是有特殊后跟的鞋。
你可以上下移动后跟。
亚历克斯：它们的用途是什么？卡罗尔：噢，你可以改变你的鞋子的风格。
如果你打算参加聚会，你可以增高你的鞋跟；或者如果只是出去购物，你可以降低鞋跟。
2b Listen again and complete the chart below.Alex: Hi, Carol. Wow, what are those?Carol: Hello, Alex. Oh, these are some of the interesting inventions that I’m writing about for my English homework.Alex: I see…What’s that, then?Carol: They’re shoes with lights. People use them for seeing in the dark when you get up at night. Alex: Oh, that’s a cool idea! I always hit my toe on something on the way to t he bathroom at night.Carol: Next is a special ice-cream scoop. This is my favorite invention. It runs on electricity and becomes hot.Alex: I know what it’s for! It’s used for serving really cold ice-cream.Carol: Yes, that’s right! The last invention I’m going to write about is shoes with special heels. You can move the heels up and down.Alex: What are they used for?Carol: Well, you can change the style of your shoes. You can raise the heels if you are going to a party or lower them if you are just going out for shopping.2b 再听一遍录音，完成下面的表格。
亚历克斯：你好，卡罗尔。
哇，那些是什么？卡罗尔：你好，亚历克斯。
哦，这些是我要在英语作业中写到的一些有趣的发明。
亚历克斯：我知道了……那么，那是什么？卡罗尔：它们是带灯的鞋。
当晚上起床时，人们用它们在黑暗中看东西。
亚历克斯：哦，那是一个很酷的主意！我总是在晚上去卫生间的路上碰到脚趾。
卡罗尔：接下来是一个特别的冰激凌勺。
这是我最喜爱的发明。
它靠电运行，接着变热。
亚历克斯：我知道它的用途！它是用来加热非常凉的冰激凌的。
卡罗尔：是的，正确！我要写的最后一项发明是有特殊后跟的鞋。
你可以上下移动后跟。
亚历克斯：它们的用途是什么？卡罗尔：噢，你可以改变你的鞋子的风格。
如果你打算参加聚会，你可以增高你的鞋跟；或者如果只是出去购物，你可以降低鞋跟。
Section B1c Listen and CIRCLE T for true or F for false.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 cook 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 came into the restaurant where George worked. He ordered a plate of fried potatoes. When the potatoes came, he said they were cut too thick and sent them back to the kitchen.Boy 2: So what happened?Boy 1: Well, George was angry, so he cut the potatoes really, really thin, and he cooked them for a long time until they were crispy. And he put 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 cut, crispy, salty potato chips.Boy 2: And we’re still eating them today. What a cool story!1c 听录音，正确的圈T,错误的圈F。