than was是什么用法（than从句省略主语）

The Amazon rainforest is smaller now than was 50 years ago.

请问这里的 than was 是什么用法？难道不应该是 than it was 吗？

The Amazon rainforest is smaller now than it was 50 years ago.

附相关截图：

以上截图来自译林版高中英语新教材必修第三册第1单元(p7)。

The Amazon rain-forest is smaller now than was 50 years ago.

这个句子是个语法错误。than比较分句要么保留主语和谓语动词，要么主语和谓语动词同时省略，不能省略主语而保留谓语动词（除非主语为比较短语的对应项）：

The Amazon rain-forest is smaller now than it was 50 years ago. （正）

The Amazon rain-forest is smaller now than 50 years ago. （正）

The Amazon rain-forest is smaller now than was 50 years ago. （误）

曹荣禄 -

擅长：动词用法,句法问题 | 采纳率 82% | 回答于 2022-02-26 16:07

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其它 1 个回答

小马哥 2022-02-26 15:23

在比较级的某些句子中，than后面可以直接接谓语动词，这类从句用来表示“程度和范围”。例如：

He has drunk considerably more wine than is good for his health. 他喝酒喝得很多，已经到了有损健康的程度。

They have given us more money than is necessary. 他们给我们的钱超过了我们所需要的额度。