本讲为2006年下半年新的教学内容，请对照语法、教材、练习册听录音！   Unit 4       Text A   Slavery on our Doorstep   重点词语   I heard him singing.   I heard him sing.   I like dancing, but today I do not like to dance.       I you he she it we you they   Me you him her it us you them   My your his her its our your their   There is a little water in the bottle.   The holiday _being_ (be) over,  we get down to work.   The __ (adj.)