Question

2．We usually believe what our brain tells us，but there is some amazing evidence which shows that the brain tricks us．As a result，we can ignore things that actually are there．Psychologists Daniel Simons and Christopher Chabris have researched this phenomenon，which they call'change blindness'．
The′Invisible Gorilla（看不见的大猩猩）experiment is probably their most famous one，and it is described in many psychology textbooks．In this experiment，the participants were shown a video of two groups of people （one group in white T-shirts and the other group in black T shirts）who passed basketballs around in a hall．Simons and Chabris asked people to count how many times the white team passed the ball．While the two teams were passing their balls around，a person who was dressed up as a gorilla walked through the group and stopped to look at the camera．Simons and Chabris found that about half of the research participants did not notice the gorilla．
Simons and Daniel Levin did another experiment，called the'Door Study'．Participants in this study were walking across a university campus（校园）when they were stopped by someone they didn't know．The stranger asked for directions and the participant started to give the directions．While the participant was talking to the stranger，two men who were carrying a wooden door talked between the participant and the stranger．At this point，the stranger swapped places with one of the men carrying the door．After that，the participant continued to give the directions．Once again，about half of those tested did not notice that，when the door as passing by，the stranger had changed places with a man who as taller，thinner and who sounded different．
It just goes to show how we can't always trust our own rains．Even though we may think we know what is going on，we can be blind to large changes in our environment．
 
28．What were the participants asked to focus on in'the Invisible Gorilla'experiment？D
A．The number of people in the hall．
B．The clothes people were wearing．
C．The number of basketballs in the hall．
D．The basketball the white team was passing．
29．What did Simons and Levin want to study？C
A．Whether people could find the correct directions in a strange place．
B．Whether people were patient to offer help after an interruption．
C．Whether people noticed they were talking to different people．
D．Whether people judged others sound．by their appearance and sound．
30．Why do people sometimes ignore what's before their eyes？A
A．They are concentrating on something else．
B．They don't trust their own brains．
C．They have very bad eyesight．
D．They aren't interested in it．
31．Where does this text probably come from？C
A．An experimental procedure．
B．A biology textbook．
C．A science magazine．
D．A health report．

Answer 1

分析 本文讲述了一种特殊的大脑感知现象：变化盲视现象：人们看到不存在的事物或是忽视存在的事物的大脑"欺骗"人的现象．并讲述了著名的变化盲视实验．

解答 28．D．细节理解题．根据Simons and Chabris asked people to count how many times the white team passed the ball可知，这个实验要求人们关注白队传球的次数．故选D．
29．C．推理判断题．根据The stranger asked for directions and the participant started to give the directions．While the participant was talking to the stranger，two men who were carrying a wooden door talked between the participant and the stranger．At this point，the stranger swapped places with one of the men carrying the door．After that，the participant continued to give the directions．Once again，about half of those tested did not notice that，when the door as passing by，the stranger had changed places with a man who as taller，thinner and who sounded different．可以推测出，他们想要研究人们是否会注意观察在和不同的人交流时．故选C．
30．A．推理判断题．根据While the two teams were passing their balls around，a person who was dressed up as a gorilla walked through the group and stopped to look at the camera．Simons and Chabris found that about half of the research participants did not notice the gorilla．以及文章内容可以推断出，人们忽视眼前的事是因为专注于一些事．故选A．
31．C．推理判断题．根据文章内容可知，本文主要讲述了一种特殊的大脑感知现象，属于科普文，应该来自于科学杂志．故选C．

点评 考查学生的细节理解和推理判断能力．做细节理解题时一定要找到文章中的原句，和题干进行比较，再做出正确选择．在做推理判断题时不要以个人的主观想象代替文章的事实，要根据文章事实进行合乎逻辑的推理判断．