885-s3-4

我怎么记得在句中不能用倒装啊，有个OG的题目就是这样的。所以我上来噌噌噌就把ABC给排除了。

146. A patient accusing a doctor of malpractice will find it difficult to prove damage if there is a lack of some other
doctor to testify about proper medical procedures.
(A) if there is a lack of some other doctor to testify
(B) unless there will be another doctor to testify
(C) without another doctor's testimony
(D) should there be no testimony from some other doctor
(E) lacking another doctor to testify

       排除法：  B中are错，C中are错，they无指代对象，C中如果是虚拟语气，要用were而不是is，E中，时态will错。
还原后的句子：should a significant number of these debts be repudiated, the solvency of some of the world’s largest multinational banks is at stake(处于危险中)

should...be/do =if... is/does??

请教，可以这样认为吗？

关于这道题的语法解释：

用颠倒主、谓语词序手段表示假设条件从句：假设条件从句中谓语有were,had,should,could等时，则可以去掉if，把这些词提前到从句最前面，即可构成假设条件从句的另一种句型。例如：

1、Were there no gravity,there would be no air around the earth.

2.Had Dr.Ouyang time,he would help us (to)solve these problems.

3.Should they come to us, I should ask them some questions.

4.He might live quite comfortably were it not for such troubles.

5.Should they come(=If they should come),I shall speak to them about it.如果她们真的来，我就给他们讲讲这件事。

蓝字部分均摘抄自《新编英语阅读手册》（叶永昌 主编）P454（假设情况的其它表示法）

这道题的划线部分可不可以像例句5中那样，还原成 if a significant number of these debts should be repudiated. （如果大量债务真的被拒绝偿还）

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