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1. What it yas to become was uncertain until between 4. 5 and 3. 8 billion years ago when the dust settled into a solid globe. (P25)

[分析]

① 本句是一个主从复合句。

② 主句是 What it was to become was uncertain until between 4. 5 and 3. 8 billion years ago,when 引导 从句。

③ 主句中包含一个由what引导的主语从句,what在从句中作

[句意]随后它会变成什么没人能知道,直到38-45亿年 前,这团尘埃才慢慢地形成一个固体的球状物。

[仿写]杰克打算做什么我不知道,直到第二天早上,他 才告诉了我他的计划。

1. [分析] 定语;宾语

[仿写]What Jack was gping to do was not clear to me until the next morning when he told me his plan.

题目来源:2016年英语周报高一新课标 > 第38期2015-2016年高一新课标

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