4．The children were always good during August，especially when it got near the twenty-third．It was on this day that the great silver spaceship carrying Professor Hugo's Interplanetary Zoo settled down for its annual six-hour visit to the Chicago area．
Before daybreak the crowds would form，long lines of children and adults，each one grasping their dollar，and waiting with excitement to see what strange creatures the Professor would bring this year．In the past they had sometimes been treated to three-legged creatures from Venus，or tall，thin men from Mars，or even snakelike horrors from somewhere more distant．This year，as the great ship settled slowly in the huge parking area，they watched with awe as the sides slowly slid up to reveal the familiar barred cages．
In them were some wild race of nightmare-small，horse-like animals that moved with quick motions and constantly made high-pitched sounds．The citizens of Earth pushed around as Professor Hugo's crew quickly collected the waiting dollars．The good Professor called into his microphone，"People of Earth，this year you see a real treat for your single dollar-the little-known horse-spider people of Kaan-across a million miles of space brought at great expense．"
The crowds slowly filed by，at once horrified and fascinated by these strange creatures that looked like horse but ran up the walls of their cages like spiders．"This is certainly worth a dollar!"one man remarked，hurrying away．
As the ship rose from the ground the Earth people agreed that this had been the very best zoo yet…
Some two months and three planets later，the silver ship of Professor Hugo settled at last onto the familiar planet of Kaan，and the horse-spider creatures filed quickly out of their cages．In one home，the she-creature was happy to see the return of her mate and offspring．"It was a long time you were gone．Was it good？"
The he-creature nodded．"The little one enjoyed it especially．We visited eight worlds and saw many things．"
"On the place called Earth it was the best．The creatures there wear garments over their skins，and they walk on two legs．"the little one smiled．
"But isn't it dangerous？"asked the she-creature．
"No，"her mate answered．"There are bars to protect us from them．We remain right in the ship．Next time you must come with us．It is well worth the nineteen commocs it costs．"
And the little one nodded．"It was the very best Zoo ever…"
21．Which of the following about Professor Hugo's zoo is true？B
A．The animals in the zoo were dangerous．
B．The horse-spider people thought the Earth people were the animals in the zoo．
C．Professor Hugo forced the horse-spider people to travel to Earth．
D．The zoo is open to protect animals with special features．
22．What can be inferred about the people on Earth from the passage？C
A．They were able to talk to the horse-spider people．
B．They knew the horse-spider people were dangerous and cruel．
C．They were afraid of the horse-spider people．
D．They were cheated by those horse-spider people．
23．What does"file by"in Paragraph 4 mean？A
A．Walk by．B．Run away．C．Hurry in．D．Stand by．
24．Where does this text probably come from？A
A．Science fiction．
B．Children's literature．
C．A science report．
D．An advertisement．
分析 本文主要讲述了人们在一个由Professor Hugo开办的动物园里看到了各种奇怪的生物，近距离的和它们接触互动．而生物们也将人们视为被他们观赏的动物，
解答 21．B 细节题．根据文章内容，．"There are bars to protect us from them．We remain right in the ship．Next time you must come with us．It is well worth the nineteen commocs it costs．"…And the little one nodded．"It was the very best Zoo ever…"地球上的人们会参观 horse-spider people，而 horse-spider people同时认为地球上的人也是关闭在动物园里的动物，结合选项，故选B
22．C 细节题．根据文章内容The crowds slowly filed by，at once horrified and fascinated by these strange creatures that looked like horse but ran up the walls of their cages like spiders由此可知 the Earth people 对于看到奇怪的horse-spider people时，是表现的惊恐万分，十分害怕的．结合选项，故选C
23．A 词义猜测题．根据文章内容The crowds slowly filed by，at once horrified and fascinated by these strange creatures that looked like horse but ran up the walls of their cages like spiders人群慢慢的走过，看到奇怪的生物时引起一阵害怕的骚动..结合选项．故选A
24．A 推理题．根据文章内容，主要讲述了人们在一个由Professor Hugo开办的动物园里看到了各种奇怪的生物，近距离的和它们接触互动．而生物们也将人们视为被他们观赏的动物，结合选项．这类奇幻的文章会出现在科幻小说里，故选A
点评 本文是一个科教类阅读理解，题目涉及多道细节理解题，做题时结合原文和题目有针对性的找出相关语句进行仔细分析，结合选项选出正确答案．推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案，切忌胡乱猜测，一定要做到有理有据．
