我要提问:  

问题
向高手请教几题

1.---He has failed the exam again .
-- But ___ that? He __hard.
A have you expected; has never worked
B have you expected; has never worked
C do you expect ; has never worked
D did you expect ; had never worked
2.If metal is heated and then cooled very
quickly ,____, by dipping it water, it will
very hard but will break easily.
A what's more B for example C in general
D on the other hand
3.As there were no more empty seats in the
room many persons had to be___.
A. moved away B sent away C turned away
D kept away .
the answer is DBA
请解释
答案
1.从句子当中的has,我们可以看到这一个是完成句式,所以是因为“在考试以前他没有还好学习”才导致“前几天的考试不及格”。也就是过去的过去,只能用过去完成式,排除法,就选D了。
2.A what's more更重要的是,作补充, B for example例如 C in general总而言之D on the other hand 在另一方面,但是。本句话是说“如果铁骤冷骤热,可以变的坚硬易碎”。那怎么样才能骤冷骤热呢?当然是“放在水中”了。所以说选B,举例说明。
3.首先我们必须明白as的意思,在本句话中它是“因为”,不是以前的“当……的时候”。所以“因为房间没有足够的座位,所以很多人不得不??”只有A是“离开”。词组have to do 不得不作某事。其余的分别是:派遣,转向,防范

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