1 developed very slowly and it took nearly two hundred years as an analytical machine by Charles Babbage. 我发展得非常緩慢.差不多过了 200年我才被查尔斯•巴贝奇制造成一台分析机. 题目和参考答案——青夏教育精英家教网—

7.1 developed very slowly and it took nearly two hundred years as an analytical machine by Charles Babbage. (build)

我发展得非常緩慢，差不多过了 200年我才被查尔斯•巴贝奇制造成一台分析机。

7. before I was built考查before引导的状语从句。该句型是固定句型，结构为：it takes / took+时间段+before从句，意为：要过多久才"…-;其否定句为：it doesn't / didn't take+时间段+before 从句，意为：没过多久就……。

题目来源：高考丢分题英语 > Unit 3 Computers

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