certify v. 证实，证明；保证

【真题再现】Sometimes the bank manager himself is asked to certify cheques if his clerks are not sure about them.

有时候，在员工不确定的情况下，银行经理要亲自查证支票。

【CET-6,2004.01，选择】

【联想记单词】联想：certain（确信的；无疑的；有把握的）→certify（v.证实，证明；保证）

【活学活用】-I certify my love will last forever!

-How can I discourage him?!

-我会证明我的爱会永远持久的！

-我要怎么样给他泼冷水呐？！

convince v. 说服；（使）确信，（使）信服

【真题再现】They weren't convinced of the results.

他们不相信这种结果。

【CET-6,2009.12，阅读】

【联想记单词】词根词缀：con+vince（征服）+e→征服→说服，使信服

【活学活用】-It is delicious,just try it...

-这个很美味，试试。。。

narrator: This man is trying to convince the dog that the food is delicious.

旁白：这家伙在劝狗说这食物很美味。