"When was it invented?" PPT courseware 21

Description

"When was it invented?" PPT courseware 21

Words and expressions

n. Refrigerator /fridʒ/fridge

adj. low; short /ləu/low

pron. someone n. important person/'sʌmbədi/somebody

v. Translate /træns'leit/translate

v.Lock; lock n.Lock /lɔk/, /la:k/lock

v. To make a ringing sound; to make a phone call /riŋ/ring

n. Earthquake /'ə:(r) θkweik/earthquake

Revision

When were the following things invented? Choose the right time.

What are these and what are they used for?

shoes with special heels changing the style of the shoes

shoes with lights serving really cold ice-cream

hot ice-cream scoop seeing in the dark

past tense passive voice

1. Sentence structure of passive voice in simple past tense

Affirmative sentence subject + was/were + past participle of transitive verb (+ by...)

Negative sentence subject + was/were + not + past participle of transitive verb (+ by...)

Interrogative Sentence Was/Were+subject+past participle of transitive verb (+by…)?

Special question word + was/were + subject + past participle of transitive verb (+ by...)?

2. Basic usage of passive voice in simple past tense

usage

Indicates an action that occurred at a specific time in the past, and the subject of the sentence is the recipient of the action of the predicate verb

Example

The house was built in 1990.

The house was built in 1990.

Telling about an action that happened in the past, without knowing the person who performed the action

He was honored with the name "Father of Hybrid Rice".

He was awarded the title "Father of Hybrid Rice"

3. How to change active sentences containing double objects and compound objects into passive voice

① When an active sentence containing double objects is changed into passive voice, the indirect object referring to “person” is usually changed to the subject, while the direct object referring to “thing” remains unchanged.

He gave me a book yesterday.

I was given a book (by him) yesterday

② If you want to change the direct object referring to "thing" into the subject, add to or for before the indirect object

I brought him some food.

Some food was brought to him (by me).

③When an active sentence containing a compound object is changed to passive voice, the object should be changed into the subject, and the complement of the object should remain unchanged.

Jim asked Tom to go for a walk.

Tom was asked (by Jim) to go for a walk.

4a Rewrite the sentences using the passive voice.

1.They sold the fridge at a low price.

The fridge was sold at a low price.

2. Somebody stole my camera from my hotel room.

My camera was stolen from my hotel room.

3. Where did you take these photos?

Where were these photos taken?

4. Our parents advised us not to go out alone.

We were advised not to go out alone by our parents.

5. Different writers translated the book into different languages.

The book was translated into different languages ​​by different writers.

Explanation

1.They sold the fridge at a low price.

They sell this refrigerator at a low price.

low adjective, meaning "low; short",

The common phrase at a low price means "at a low price."

► She jumped over the low wall.

She jumped over the low wall.

►This sweater is on sale at a low price.

This sweater is on sale at a low price.

2. Somebody stole my camera from my hotel room.

The indefinite pronoun "someone" means "someone; important person" and is used in affirmative sentences. When used as the subject, the predicate verb is in singular form, and its synonym is someone.

► There is somebody waiting to see you.

Someone is waiting to see you.

The indefinite pronoun anybody means "someone" and is often used in negative sentences and interrogative sentences; it means "anyone" when used in affirmative sentences.

► Is there anybody who can help me?

Can anyone help me?

► Anybody can do the work well.

Anyone can do this job well.

Exercises

I. Single choice.

1.(2013.Shaanxi)The mobile phone has influenced people’s life a lot since it ____.

A. invents B. invented

C. is invented D. was invented

2. (2013.Shanghai) _____ is waiting for you at the gate. He wants to say thanks to you.

A. Somebody B. Anybody

C. Everybody D. Nobody

3. At the end of the meeting Miss Green ___two minutes to decide whether she should join the project or not.

A. gave B. give

C. was given D. was giving

4. The mixture smells terrible but Tom ____ taste it.

A. was made to B. was made

C. made to D. made

II. Change the following sentences into passive voice.

1.The young man saved the lives of the children.

The lives of the children were saved by the young man.

2. The villagers didn’t find the lost boy at last.

The lost boy wasn’t found by the villagers at last.

3. Did you clean up your room last night?

Was your room cleaned up last night?

4. My mother bought me a new CD player.

I was bought a new CD player by my mother. /

A new CD player was bought for me by my mother.

5. We saw Jim come in.

Jim was seen to come in.

Homework

Master what you have learned in this lesson. Learn to talk about the history of inventions with the passive voice in the simple past tense.

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Update Time: 2024-10-05

This template belongs to English courseware New target English ninth grade complete book industry PPT template

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