作业帮请帮助分析下面单词的用法有何区别,assure insure ensure
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请帮助分析下面单词的用法有何区别,assure insure ensure
请帮助分析下面单词的用法有何区别,
assure insure ensure
请帮助分析下面单词的用法有何区别,assure insure ensure
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.