| 释义 |
provide v.预备，准备；供给，提供〖同〗supply
〖题〗Solar cells have been developed primarily to ___ electric power for spacecraft. A.provide B.ensure C.store D.secure
〖解〗答案A。句意：太阳能电池开发出来作为提供宇宙飞船的主要电源。provide提供，与supply近义；ensure保证，担保；store储存；secure使……安全；B,C,D三项皆不合题义。
〖词组〗provide against规定禁止；provide for 养活，为……而预备；provide sth. for sb./provide sb. with sth.为某人提供某物 |