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★在“It is / was +形容词或过去分词+ that从句”结构的主语从句中，表示命令、愿望、建议等，谓语动词为“should +动词原形”，should也可省略。 如： It is necessary that a college student (should) master a foreign language. It is desired that this rule (should) be brought to the attention of the staff. ★动词wish后的宾语从句中，表示与现在事实相反时，从句中动词用过去式；表示与过去事实相反时，从句中动词用“had +过去分词”；表示将来很难实现的愿望时，从句中动词用“would / could / might +动词原形”。如： How I wish I was there with you. I wish I hadn’t lost the chance. I wish he would / could / might go with us to the theatre. ★在would sooner, would rather等后面的宾语从句中动词要用虚拟语气。尚未发生的动作用动词的过去式，已经发生的动作用“had +过去分词”。如： I would sooner he left on the earlier train. I’d rather you went tomorrow. I’d rather you hadn’t done that. ★表示“建议、命令、要求、坚决做”等动词（如suggest, demand, require, request, order, insist等）后的宾语从句中谓语常用“（should +）动词原形”。如： I suggest you (should) have enough sleep. | 
