第22题: [单项选择]______ some of the tasks done by man before, computers are sometimes called thinking machines. A. Taking over B. To have taken over C. To take over D. To be taken over 参考答案:A 答案解析:taking over是现在分词短语做原因状态,computers是taking的逻辑主语。本句的意思是,“由于计算机接管了一些以前由人类做的任务,所以有时它被称为会思考的机器”。