1、had better(best)+动词原形，would rather+ 动词原形+than +动词原形,would rather+虚拟式丛句had better(best)+动词原形意为“最好”，否定形式 had better not,疑问句把 had 放在主句前。这个结构用于现在时或一般将来时，通常用于所有人称。Wed better not invite him.我们最好不要邀请他。Youd better stay at hospital for another few days.你最好在医院再住几天。Better have the operation right now.你最好还是现在就动
2、手术。Had he better set off at once? 他马上动身好吗？would rather 意为“ 宁愿，宁可 ”，后接动词原形，否定式为 would rather not, 疑问句把would 放在主语前。Would ratherthan 意为“宁愿而不”，than 后面接动词原形（不带to） ，would rather 后面接从句时要用虚拟式。Which would you rather do, go to cinema or stay at home? 你是去看电影还是待在家里？He would rather die than surrender. 他宁死不投降。I would rather you hadnt lent her the bike the other day.我宁愿你前些日子不借给他自行车。I would rather he stayed at home.我宁愿他呆在家中。
