4、.④有些形单却意为复数的名词,如:Peoplearecominghere这样的词还有Police,如果要讲一个警察时,应讲apoliceman。两个警察为twopolicemen。又如apolicewoman,twopolicewomen⑤ 所有不定代词each,either,neither,one,theother,nobody,nothing,anyone,anything,someone,something…要作为单数如:Someoneiswaitingforyou在并列句中表示联合关系的连词有:andnotonly…butalso, ne
7、am②if,whether它们在宾语从句中只起连接作用,不起语法作用,当作是否讲。从句中有ornot结构时,要用whether,如:Iaskhimif(whether)hehashadhislunchIaskshimwhetherhehashadhislunchornot ③ what它在宾语从句中除了作连接词外,还要作主语或宾语成份,如:Idon'tunderstandwhatyousaid(what作said的宾语)。又如:Iaskedhimwhatmadehimsick(what在宾语从句中作主语)。④ who,它也和what一样,在句中除