When was it invented?mp3课文听力下载

　　听力要想有突破,必须在平时多练习，初三英语When was it invented?课文听力材料小编已经为同学们准备好了。

　　When was it invented?听力材料：

　　Unit9 when was it invented?

　　Section A,1b

　　Activity 1b.Listen and match the inventions with the dates.

　　Alice:Life must hace been difficuit when you were akid.

　　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 totake 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,TVswere really expensive,and we couldn't afford one.

　　Alice:AndI bet you didn't have calculators and computersand stuff.That'a something I do know.We learned in school that handheld calculators were invented in 1971 and personal computers were invented in 1971 and personal computers were invented in1976.

　　Woman:You're right. I didn't have those things when I was young.But I do now!

　　2a Listen and number the inventions in the order that you hear them.

　　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 are 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.

　　2b. Listen again. Match the inventions with their inventors and uses.

　　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 are 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

　　2a.Listen and circle "T"(for ture) 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 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,George was in abad mood,so he cut the potatoes 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 still eating them today.What a cool story!

　　Boy 1:Yeah.

　　2b. Listen again. Complete the sentences.

　　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,George was in abad mood,so he cut the potatoes 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 still eating them today.What a cool story!

　　Boy 1:Yeah.

　　3a. Read the article and write answers to the questions.