句子成分排序口诀主语在前，谓中间，宾语状语排后面。短语定语主宾后，形，代定语主宾前。间接宾语若在后，直间要用to,for连。宾补位于宾语后，地状常在时状前。We will have an exam next week.Our grandpa often tells us stories about chairman Mao on Sundays.Tom asked me to help him at school yesterday.(一). 指出下列句中主语的中心词 (4分，4分钟) the teacher with two of his students is walking into the classroom. there is an old man coming here. the useful dictionary was given by my mother last year. to do todays homework without the teachers help is very difficult.(二)
