本讲为2006年下半年新的教学课程，请对照大纲和教材听录音！
Unit 3

Text A
Euthanasia: For and Against

重点词语

it is (well) known that
it is said that
it is believed that
weaken v. 削弱，减弱
be done
am is are
was were
be being done
our library is being repaired.
Have (has) been done
Homework has been finished.
Will do / be to do
Homework will be finished

Do be done
Be being done
Have (has) been done
Did was were done
Was were being done
Had been done
Will be done
Will be being done
Be done am is are
people keep all the books in good order in the library.
All the books are kept in good order in the library by people.
I am repairing the chair.
The chair is being repaired by me.
I have written the report.
The report has been written.
I wrote a letter yesterday.
A letter was written yesterday.
SVo
SVoo
I gave him a pen.
He was given a pen by me.
A pen was given to him by me.
Can may must should could might
I can finish the job myself.
The job can be finished by me.

Take care of
Babysitter took care of the baby very carefully.
The baby was taken care of very carefully by the babysitter.
Look for
look after
I am looking for my watch.
The watch is being looked for.

weaken v. 削弱，减弱