Homework - 02/07/08

Exercise 2: Passives.
Rewrite the underlined parts of these sentences. Instead of using ‘people’, ‘somebody’, or ‘they’, write a passive sentence with an appropriate verb form.

We maintain them.
They are maintained.

We define tropical forests.
Tropical forests are defined.

Scientists distinguish methane because it has.
Methane is distinguished because it has.

They reformed the old dilator procedure.
The old dilator was reformed.

The government passed the Disease Regulations.
The Disease Regulations are passed.

Researchers isolated and crystallised lysozyme.
Lysozyme was isolated and crystallised.

The recent local crime surveys replicate these findings.
These findings are replicated by the local crime surveys.

Everybody eventually generally accepted the date.
Eventually the date was accepted generally.

We next consider a range of rival theories.
The range of rival theories are considered next.

The examiners should conduct the examinations.
The examinations should be conducted.

We’ll confine the discussion.
The discussion will be confined.

The researchers transcribed many genes and synthesise many proteins.
Many genes were transcribed and many proteins were synthesised.

They separate the main equation.
The main equation is to be separated.

Homework - 02/07/08

Exercise 1: Passives
Rewrite these sentences. Instead of using 'people', , ‘somebody’, or ‘they’, write a passive sentence with an appropriate verb form.

Someone had reported the theft to the police.
The theft was reported to the police.

Someone has given £1,000 to the charity.
£1,000 is given to the charity.

Someone will demonstrate the program to the students.
The program will be demonstrated to the students.

Someone explained the procedure to me.
The procedure was explained to me.

People are destroying large areas of forest every day.
The large areas of forest are being destroyed every day.

Somebody has bought the land next to the university.
The land next to the university has been bought.

I hope they will have completed all the marking by tomorrow.
I hope all the marking will be completed by tomorrow.

They should have finished the library by the time you arrive.
By the time you arrive the library should have been finished.

People expect better results soon.
The better result is to be expected soon.

Students should send their complaints to the head of department.
The complaints should be sent to the head of department.

They had to postpone the lecture because of illness.
The lecture had to be postponed due to the illness.

An electrical fault could have caused the fire.
The fire could have caused by the electrical fault.

They are going to hold the next year’s conference in Birmingham.
The next year’s conference is being held in Birmingham.

Everyone knows this fact very well.
This fact is very well known.

They opened the new lecture theatre only last month.
The new lecture theatre was opened only last month.

You must write the answers on the examination paper in black ink.
The answers must be written in black ink on the examination paper.

They are now manufacturing this type of computer in Korea.
This type of computer is now being manufactured in Korea.

Someone should investigate the problem.
The problem should be investigated.