一、对情态动词表示推测的考查1.Tom isn't at school. I think he ____ be ill.(广西) A.can B.shall C.must 2.John ____ come to see us tonight, but he isn't very sure yet. (广州) A.may B.can C.has to D.must 3.This key ____ be Peter's.
一、be going to是一个固定结构,一般用来表示按计划或安排将要发生的事;有时也可以表示经推测将要或肯定要发生的动作,有“准备、打算”等意思,因此它应当与表示将来意义的时间状语连用。其中be是助动词,有(I)am,(He/She/It) is, (You/We/They)are三种形式。助动词be没有实际意义,与主语搭配时与系动词be的变化形式一样。to是不定式符号,后接动词原形。例如: They are going to play football this after-noon after school.他们准备今天下午放学后踢足球。
