Question

If these kind-hearted soldiers ___ us last week, we would not have such a good harvest.

1. A.
   helped
2. B.
   had helped
3. C.
   had not helped
4. D.
   didn’t help

Answer 1

C
试题分析：考查错综时间条件句。从主句 would not have可以看出与现在相反，再观察从句状语 last week可知，从句与过去相反，使用had done,结合句意,应用否定，故选C。句意，如果这些热心的战士上周没有帮助我们，我们就不可能有这么好得收成。
考点：考查虚拟语气中错综时间条件句。
点评：注意辨认if的错综时间条件句。虚拟语气的考查要注意分清主从句是与过去，现在还是将来相反，并熟记主,从句的虚拟规则