阅读短文，根据短文内容及首字母提示，在空白处填入一个适当的单词。
Three men were t____小题1:______ about the world’s greatest wonders.
The first man said, “I think the pyramids are the greatest. Though people b____小题2:___ them thousands of years ago, they are still standing. And just think: people at that time didn’t have our m___小题3:__ machines(机器). How could they build them so long ago?”
“ I a__小题4:__ that the pyramids are wonderful,” the second man said, “ but I think computers are more wonderful. Everyone knows computers have changed the world a lot since people i小题5:___ them.”
Then the t_____小题6:____ man said, “ I d___小题7:_____ with you two. I think the most wonderful thing is the Thermos(真空瓶).”
The other two men were very s_____小题8:_____. “A Thermos!” they said. “Why? It ‘s a simple (简单) thing.”
“Oh, no,” the man said. “In w_____小题9:___ you put in hot water and it stays hot. In summer you put in a cold drink and it stays cold. How does the Thermos know w____小题10:______ it is winter or summer?”
小题1:talking
小题2:built
小题3:modern
小题4:agree
小题5:invented
小题6:third
小题7:disagree
小题8:surprised
小题9:winter
小题10:when
题目分析：这篇文章说的是三个人在谈论世界上最伟大的奇迹。三人各有各的观点，其中第三个人的说法很让我们大吃一惊。
小题1:句意：三个人在谈论世界上最伟大的奇迹。talk about 谈论。
小题2:句意：尽管人们修建金字塔已经几千年了，它依然屹立不倒。此处说的是修建金字塔，是过去的事，应该用过去式。
小题3:句意：那个时候的人们没有我们现代的机器。modern 现代的。
小题4:句意：我同意金字塔是伟大的。这里是第二个人同样觉得金字塔很伟大，但后面有转折。
小题5:句意：每个人都知道自从人们发明了计算机它就极大地改变了这个世界。invent 发明。
小题6:句意：然后第三个人说道。由上文可知现在该第三个人发言了。
小题7:句意：我不同意你们两个。我认为最伟大的发明是真空瓶。由他的下一句话可知第三个人并不同意前两个人的话。
小题8:句意：另外两个人都很吃惊。听到第三个人说的话，前两个人都觉得很吃惊。所以他们接下来问Why?
小题9:句意：在冬天你放进热水它会保温；在夏天放进凉水它会保持凉。因为下句提到了夏天，所以这里是与夏天相对的冬天。
小题10:句意：它怎么知道是冬天还是夏天的？when 在这里引导了一个宾语从句。
