核心问题
（1）“She has gone,” he said, giving her the note.
(2) "Father!" cried Fenella. But he was gone.
句(1)中的 has gone 是 go 的现在完成时。句(2)中的 was gone 是否应改为 has gone?
词典解答
在 He has gone. 中的 has gone 是现在完成时(gone 为过去分词)，而在 He is gone. 中 is 为系词，gone 虽然形式上是过去分词，但起着形容词的作用，在句中作表语(主语补足语)。后一结构着重强调的是状态。
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How long do you think you'll be gone? 你估计你要离开多久？
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Their cousin was already gone out when they came down to breakfast. 当他们下来吃早饭时，他们的堂兄弟已经离开了。
be gone 的主语是“物”时,常常表示“消逝了”“不见了”“用完了”。
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When I came back my car was gone. 当我回来时,我的汽车就不见了。
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Just a pain in my chest. It's gone now. 刚才我的胸疼。现在好了。
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One window was open—and the books were gone!（全国高考）一扇窗户开着——书不见了！
have come 与 be come 的情形也是如此:
The summer was come now. 夏天到来了。