某些主语从句中的谓语动词要用虚拟语气 3 u z/ @8 Y) [. I
某些表示命令,要求,决定,建议,主张以及“重要性”和“紧迫性”等概念的主语从句中谓语动词要用虚拟语气。这时,谓语动词用动词原形或should +动词原形。这类主语从句一般由 “It is (was) + 形容词/过去分词 + that引导的从句”构成。该结构中,常用的形容词主要有:advisable, appropriate, desirable, essential, imperative, important, necessary, obligatory, proper, urgent, vital等;常用的过去分词主要有:arranged, decided, demanded, desired, ordered, proposed, recommended, requested, suggested等。 www.examw.com
$ d7 o( d- W% {, s% S5 P/ U6 Q It is necessary that you (should) stop smoking so heavily. , y! q6 T6 P0 {
It is arranged that you (should) enter for this competition. |