题目内容

5.Would you mind waiting in the hall,sir,     the doctor can see you?(  )
A.afterB.ifC.untilD.while

分析 先生,您介意在大厅里等待,直到医生给你看吗?

解答 答案C.
after"在…之后",引导时间状语从句.if"如果",引导条件状语从句.until"直到",引导时间状语从句.while表示"当…的时候",引导时间状语从句;意为"尽管、虽然",引导让步状语从句;意为"而、但是",引导比较状语从句.分析可知前后两句话之间是逻辑上的"时间"关系,可排除B;再结合句子所表达的意思"在大厅里等待,直到医生给看病"可知答案选C.

点评 本题考查从属连词的用法.连词的用法辨析,要注意分析主从句之间的逻辑关系,再确定相应的连词,同时注意不同的连词的语义及用法区别.

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Robotic technology,in particular,holds much promise,McAteer says,especially when it comes to mapping mines and rescuing trapped miners-the special operations of the mining industry.
One of the first mining robots was developed five years ago at Canegie-Mellon University's Robotics Institute.It was called Groundhog.It used lasers to"see"in dark tunnels and map abandoned mines-some of the most dangerous work in the business.
The latest design is called Cave Crawler.It's a bit smaller than Grondhog,and even more advanced.It can take photos and video and has more sensors that can discover the presence of dangerous gases.The robot has a real sense of logic,which is hard to believe.If it comes across a thing in the way it gets confused.It has to think through the process and where to go next,and sometimes it  throws a fit just like a real person.
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C.the mine robots will have a very bright future
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