【题目】 短文改错
I'll never forget the night when our car broken down. We were heading home after a wonderfully evening with our friends. It was already midnight but we were still miles away from home. There was no traffics on the road, so we had to walk to home. Worse still, it started to rain, but by the time we got home, we were wet through. And it was then what we discovered we had left our front door key in the car. We have no choice but break a window and climb in. Then an policeman came and we had to explain for him the situation. We went to bed at 3:00am.
【答案】
I'll never forget the night when our car 
down. We were heading home after a 
evening with our friends. It was already midnight but we were still miles away from home. There was no 
on the road, so we had to walk to home. Worse still, it started to rain, 
by the time we got home, we were wet through. And it was then 
we discovered we had left our front door key in the car. We 
no choice but 
break a window and climb in. Then 
policeman came and we had to explain 
him the situation. We went to bed at 3:00am.
【解析】
第一处：根据文章内容可知，作者讲述的是过去发生的事情，所以用一般过去时态。故broken改为broke。
第二处：修饰名词evening 应该用形容词，此处指“愉快的一晚”。故wonderfully改为wonderful。
第三处：traffic是不可数名词，指“交通；交通量”。故traffics改为traffic。
第四处：walk home是固定搭配，指“步行回家”，home是副词 。故去掉walk后面的to。
第五处：前后两句是句意的顺成，而非转折。but改为and。
第六处：本句运用了强调句型，强调了时间状语副词then。故what改为that。
第七处：根据文章内容可知，作者讲述的是过去发生的事情，所以用一般过去时态。故have改为had。
第八处：have no choice but to do sth.是固定搭配，指“别无选择，只能做某事”。故but 后加to。
第九处：policeman是辅音音素开头的单词。故an改为a。
第十处：explain sth. to sb.是固定搭配，是“想某人解释某事情”的意思。故for改为to。
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Scientists at Harvard University have recycled a kidney(肾)-in a rat. The researchers removed a kidney from a dead rat. Later, the renewed kidney was put into a living rat. It wasn't perfect. It did, however, show signs of working like a kidney should.
"It's really beautiful work," Edward Ross, a kidney researcher at the University of Florida in Gainesville, told Science News. He didn't work on the new study.
Kidneys are bean-shaped and act like guards in the body. They clean the blood by removing waste and extra water. Every day, an adult's kidneys filter (过滤) enough blood to fill a bathtub half full. Along the way, they produce eight cups of urine (尿) from that waste and water. When a person's kidneys fail, all of that waste stays in the body. Such patients can quickly become very sick and die, unless they are regularly connected to a machine that filters their blood.
At any given time, about 100,000 people in the United States are waiting for a replacement kidney. But healthy donated kidneys are difficult to get. Either a living person must donate one, or a kidney must be removed from someone who just died and earlier had agreed to the donation. In either case, people receiving new kidneys face the r isk that their bodies will reject the donated ones.
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The results are a promising first step toward helping people with serious kidney problems. "This is still very early, but they've come a long way," Ross said.
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