Unit 4 When was it invented?
Section A
Language Goal
Talk about inventions
1a GROUPWORK
Look at the things below.
In what order do you think they were invented?
Number them[1-5] (1 = first,5 = last).
I think the calculator was invented
before the computer.
Well,I think the calculator was invented
after the computer.
1b Listen and match the inventions
with the dates.
Life must have been difficult when you were
a kid.Oh,not really.Why do you say that?
Well,you didn't have many modern inventions.
Like,you probably didn't have a telephone,right?
Of course we did!
How old do you think I am?
The telephone was invented in 1876.
How about cars?
I bet cars weren't invented yet.
Sure they were.
Cars were invented in 1885.
My family had a car.
I think you need to take a history class,Alice.
Ha,ha!Well,did you have a TV?
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.
And I bet you didn't have calculators
and computers and stuff.
That's something I do know.
We learned in school that hand-help calculators
were invented in 1971 and personal computers
were invented in 1976.
You're right.I didn't have those things
when I was young.But I do now.
1c PAIRWORK
Student A,cover the dates.
Student B,ask student A when the things
in the picture above were invented.
Then change roles and practice again.
When was the telephone invented?
I think it was invented in 1876.
2a Listen and number the inventions
in the order that you hear them.
What are those?
They're battery-operated slippers.
What are they used for?
They're used for seeing in the dark.
Oh,that's cool!
Who were they invented by?
Julie Thompson.
And look at this heated ice cream scoop.
I know what it's for!
It's used for scooping out really cold ice cream
Right.It was invented by Chelsea Lanmon.
My favorite are those shoes with adjustable heels.
You know-you can move the heels up and down.
They were invented by Jayce Cozier and Jami Ellsworth.
And what are they used for?
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.
What are those?
They're battery-operated slippers.
What are they used for?
They're used for seeing in the dark.
Oh,that's cool!
Who were they invented by?
Julie Thompson.
And look at this heated ice cream scoop.
I know what it's for!
It's used for scooping out really cold ice cream
Right.It was invented by Chelsea Lanmon.
My favorite are those shoes
with adjustable heels.
You know-you can move the heels up and down.
They were invented by Jayce Cozier
and Jami Ellsworth.
And what are they used for?
Well,you can change the style of your shoes.
You can make the shoes go from casual to dressy.
2c PAIRWORK
Role play conversations using the information in the chart above.
What are they used for?
They're used for seeing in the dark.
Grammar Focus
When was the car invented?
It was invented in 1885.
When were electric slippers invented?
They were invented last year.
Who were they invented by?
They were invented by Julie Thompson.
What are they used for?
They're used for seeing in the dark.
3a PAIRWORK
Make a list of five helpful inventions
and five annoying inventions.
alarm clock
light bulb
microwave oven
3b PAIRWORK
Discuss your opinions in 3a with your partner.
What do you think is the most helpful invention?
I think the most helpful invention is the light bulb.
Why is that?
Well,it gives people more time to work
and play every day.
4 GROUPWORK
Imagine that you are alone on a tiny island.
Choose five inventions you would like to have on the island with you.
Tell the group what you chose and why.
I'd like to have a radio because I could listen to music all day.
Yes,but that's not going to help you leave the island.
I think it would be better to have...