与would rather 有关的

题目

与would rather 有关的
If she'd had the chance,she'd rather have lived 100 years ago
如果可能,她宁愿生活在一百年前
疑问：she'd had=she had had 为什么要用两个had 呢 直接用 If she had the chance..可以么 请说明详细原因 最好再举类似个例子 谢谢（+2分） 其次 后面 为什么要用 have lived 呢 是不是本来是had lived 但是因为接在would rather 后面 所以才用have 这个原形呢

答案

she had had 是过去完成时,would rather 宁愿后跟虚拟语气即would rather have done
If she had the chance也可以的,这里用过去完成时可以说是更好,没有一点漏洞