suggest和insist
A. suggest, suggestion做 建议解，insist, insistence做坚决主张、坚决要求解时，that引起的宾语从句、主语从句和同位词从句的谓语动词皆用虚拟语气，即：谓语动词用should+动词原形，should也可以省略。如：
(1)The manager suggested that we (should) make an immediate decision.=The manager suggested our (us) making an immediate decision.=The managers suggestion is that we (should) make an immediate decision. = That we (should) make an immediate decision is the managers suggestion. =That we (should) make an immediate decision is suggested by the manager.经理建议我们马上做出决定。
(2)The doctor insisted that he (should) stay in bed for another five days.=The doctor insisted on his staying in bed for five more days.= The doctors insistence is that he (should) stay in bed for five more days.=That he (should) stay in bed for another five days is the doctors insistence.= That he (should) stay in bed for five more days is insisted by the doctor .大夫坚决主张他在床上再待5天。
B. suggest，suggestion做表明、说明解，insist，insistance做坚持说、坚决认为解时，that所引起的宾语从句、主语从句、表语从句的谓语动词用陈述语气。如：
(1)The officers silence at the meeting suggested that he didnt agree to the plan.=That he didnt agree to the plan was suggested by the officers silence at the meeting.会上那位当官的沉默不语表明他不同意这个计划。
[中考英语易混词语suggest和insist用法讲解]