英语语法题关于should、what

问题描述:

英语语法题关于should、what
2.The business is risky.But ___A__ we succeed we would be rich.
A.should B.would C.might D.must
3.Reading is to the mind __A___ food is to the body.
A.what B.that C.whose D.which

2.A.should,虚拟语气省略 if 的倒装用法,正装应当是:
If we should succeed,we would be rich.
虚拟语气表示与将来事实可能相反的假设,If 从句可以用 should do 或 were to do 或 过去时 did 三种形式,所以只能选 A.
3.A.what
固定句型:A is to B what C is to D.中文意思:A 对 B 来说就相当于 C 对 D 的关系.