1.Robots can be reprogrammed by a computer to do another one after completing one specific task, and this is ______ automatic machines differ.
A. because B. what
C. where D. how
【答案】C
【解析】
【详解】考查表语从句。句意：机器人可以通过计算机重新编程，在完成一项特定任务后，再执行另一项任务，这就是自动机器的不同之处。引导词在该表语从句中作地点状语，用where，故选C。
2.Mr. Smith is supposed to attend the meeting in place of the manager, who has ______ a bad cold.
A. come down with B. come up with
C. come down to D. come up against
【答案】A
【解析】
【详解】考查动词短语辨析。句意：Smith先生被期望代替患重感冒的经理参加会议。A. come down with染上病；B. come up with提出；C. come down to归根结底；D. come up against碰到，根据题意，故选A。
