[解析]
1. simplify.考查动词,be used to do sth:被用来做某事,故填动词simplify.
2. before.考查连词,before引导时间状语从句,被建造之前,故填before.
3. operator.考查名词,根据前面的an,可知后面填写名词,故填operator.
4. logically.考查副词,副词修饰动词think,故填logically.
5.was considered.考查被动,主语是it,它被认为是技术革命,故填was considered.
6. as.考查固定搭配,work as:作为,充当,故填as.
7. had grown.考查时态,根据by the 1940s, 可知是过去的过去,故填过去完成时,故填had grown.
8. larger.考查比较级,是否会变得更大,表示比较,故填larger.
9. went.考查动词,随着时间的流逝,因为是过去时,as引导的时间状语从句,故填went.
10. over.考查介词,over time,表示段时间,固定搭配,故填over.