computer car

telephone TV

SectionA 1a-1c

I think the TV was invented before the car.

Well, I think the TV was invented after the car.

I think the telephone was invented before the computer.

Well, I agree with you.

Look at the things below. In what order do you think they were invented? Discuss them with your group. Then number them [1-4](1=first, 4=last).

Look at the things below. In what order do you think they were invented? Discuss them with your group. Then number them [1-4](1=first, 4=last).

1a

2

31

4

Listen and match the

inventions with the years. 1b

___ 1876

___ 1885

___ 1927

___ 1971

d

a

c

b

再听一遍录音，选择方框中合适的短语或句子完成下面的对话。 a. need to take a history class b. My family had a car. c. have modern inventions d. were invented e. couldn’t afford one

Alice: Was your life very difficult when you were a kid?Grandma: Oh, not really. Why?Alice: Well, you didn’t ___________ like a telephone, right?Grandma: Of course we did! How old do you think I am? The telephone was invented in 1876. You ___________, Alice!Alice: Haha! How about cars? They weren’t invented yet, were they?Grandma: Yes, they were. Cars were invented in 1885.__________Alice: Well, did you have a TV?Grandma: No, we _________. 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 _________in 1971.Grandma: You’re right. But I have one now!

c

a

b

e

d

Student B, cover the dates. Student A, ask Student B when the things in the picture in 1b were invented. Then change roles

and practice again.

Student B, cover the dates. Student A, ask Student B when the things in the picture in 1b were invented. Then change roles

and practice again.

1c

When was the telephone invented?

I think it was invented in 1876.

When was the car invented?

It was invented in 1885.

When was the TV invented?

It was invented in 1927.

When was the computer invented?

It was invented in 1971.

Summary• The names of inventions.• Passive Voice: 助动词 be(was/were)+ 及物动词的过去分词 e.g (1).A:When was the telephone invented? B:I think it was invented in 1876. (2).Personal computers were invented in 1971.

Exercises

一 . 把下列句子改为被动语态。1.People grow tea in Hangzhou.

Tea _____ _______ by people in Hangzhou.

2.We plant trees to make our city cleaner every year.

Trees _____ _______ to make our city cleaner by us every year.

3.I bought a camera last week.

A camera _____ ________ by me last week.

is grown

are planted

was bought

4.He invented shoes with lights.

Shoes with lights ______ _________ by him.

二 . 用所给动词的适当形式填空。1.These bridges _____________ (repair) by the

workers last month.

2.This sweater _____________ (wash) by Lucy yesterday morning.

3.The flowers _____________ (take) away by a child ten minutes ago.

4.That nice kite ___________ (make) for her by her grandfather in 2011.

were invented

were repaired

was washed

were taken

was made

Practice the conversation in 1c.