Question

assure，ensure，insure有什么区别

Answer 1

一 assure
 ▲assure用来表示向某人保证某事将要发生,既可以用来确证某事,也可以表示使某人确信（If you ASSURE a person of something,you promise them or tell them that）.assure的宾语通常是人或人称代词,所以不能直接搭用that － clause.其常用结构为：assuresb．ofsth．／as-.
①He assured us of his ability to solve the problem．他向我们保证他有能力解决这个问题.
 ②We booked early to assure ourselves of（getting）good seats．我们及早订座以保证我们能得到好座位.
 ▲assure后还可跟抽象名词作宾语,此时与ensure同义,表示确保.
 ①Weeks of practice assured ／ensured success in the match．几个星期的训练确保了在比赛中获得成功.
 ②Nothing can assure permanent peace．没有什么能确保永久和平.
 ▲assure在英国英语中作为专业术语,可表示投人寿保险. to insure ／assure against death投保寿险（life assurance ／insurance人寿保险） 二 ensure
 ▲ensure的意思是使某行为或某件事的结果得以保证,即确保某事发生（to make sure that sth．happens）.ensure后可以直接跟 that-clause,并可以用复合宾语.常用结构为：ensure sth．／ensure ＋that －clause ／en-sure ＋obj．（i）＋obj．（d）
 ①To ensure the child's quick recovery,the doctor gave him an antibiotic．为使这个孩子尽快恢复,医生给他打了一剂抗生素.
 ②Registration ensures delivery of mail．挂号寄邮件保证会送到.
 ▲ensure也可以表示确保安全,免遭伤害. To ensure freedom against tyranny反对暴政,维护自由
▲在美语中ensure常拼写为insure. 三 insure 意思是为防不测向保险公司付钱投保（to pay money to an insurance company against future disaster）.
①My house is insured against fire．我的房子保了火险.
②Are you insured for all risks?你是不是给自己保了综合险? 四reassure 表示安慰忧虑不安的人,使其安心,放心,恢复信心（to comfort someone who is anxious and make him ／her free from fear or wor- ry；to bring back confidence to．．．）.常用结构为： reassure sb．（about sth．）／reassure sb．＋ that-clause
①I was worried that my work wasn't good enough,but the teacher reassured me（about it）．我担心我的作业不够好,可是老师却让我放心.
 ② The captain reassured the passengers about the strength of the ship．那位船长向乘客保证船很坚固,要他们安心.