本讲为2006年下半年新的教学内容，请对照教材，练习册，语法书听录音！

doing
doing being done

having done having been done
动名词
Doing homework is students’ duty.
Doing her homework, she found she has run out of ink.
Immediately, he left here.
China is a developing country.
Having done
Not having done
For n. / pron. __ (do)
My __ (do)
Mary’s __ (do)
Want to be watered
Need
The bike needs repairing.
The bike needs to be repaired.
The holidays _being_ (be) over, they began to work again.
Weather __ (permit), the football match will be played on Weds.