2. 职称英语
  3. ______, we shall go on a picnic.A、If the weather were fineB、Were the weather to

______, we shall go on a picnic.A、If the weather were fineB、Were the weather to

游客2024-10-19  29
问题 ______, we shall go on a picnic.
选项 A、If the weather were fine
B、Were the weather to be fine
C、Should the weather be fine
D、Had the weather been fine
答案 C
解析 该题是语法结构题，考查虚拟语气的用法。虚拟语气用在非真实条件状语从句中表示与将来事实相反时，该从句中的谓语动词可以用三种方式表达：动词过去式、were to do、should+动词原形。那么，选项D首先可以排除掉。如果用选项A或选项B，主句谓语动词也要发生相应的变化。但是该题主句的谓语动词是陈述语气，没有用虚拟语气，此时，只有使用should+动词原形的条件句才能与陈述语气或祈使语气的句子共同使用，如：If there should be another flood．what shall we do?如果再发一场大水，我们怎么办?因此，根据题意和语法规则，选项C为最佳答案。
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