justas与justafter的区别——thiswasdone,theycookedamealoveranopenfire.A.AssoonB.JustasC.UntilD.Justafter个人觉得B、D两个答案都可以,答案给的是D,请教高人这两个有何区别.

Question

just as 与just after 的区别
——this was done,they cooked a meal over an open fire.A.As soon B.Just as C.Until D.Just after 个人觉得B、D两个答案都可以,答案给的是D,请教高人这两个有何区别.

Answer 1

just用于“just as…”、“so…just as…”和“just as…so…”句中.just as引出方式状语从句.1.The electric current cannot go through an insulator,just as water cannot go through iron.电流不能通过绝缘体,如同水不能通过铁块一样.2.So air supports a balloon just as water does a ship.正如水能支撑船只那样,空气也能支撑气球.（句中does为代动词,代替supports.） 3.Just as water has its pressure,so the electric current has its voltage.正如水有压强一样,电流也有电压.4.Just as concrete is a mixture of several ingredients,so are the vast majority of alloys used industrially.工业上用的大多数合金是由几种成分组成,就像水泥是由几种成分构成的混合物一样.Just as(正当)可以引导从句,但不太合乎题义,因为它强调两件事情同时发生,而这个句子是表示两件事情一前一后发生 Just after(刚刚……之后)