完形填空

阅读下面的短文，掌握其大意，然后从每题所给的A、B、C、D四个选项中选出最佳选项．

　　I used to live in my own room alone．But one day it all changed when my brother Mike asked to share my 　　1　　．At first, my parents said “no” to him, but at last my mother agreed．I cried and asked my parents not to do this, 　　2　　 it didn't work．

　　As soon as Mike entered my room, it began to become 　　3　　．To my anger, he often left his unwashed clothes and toys everywhere!

　　One evening, I was doing some 　　4　　 on my computer while Mike was listening to music．　　5　　 I left my seat to get some water．A big surprise was waiting for me when I 　　6　　．He was using my computer to play game．I had forgotten to save the homework．Sadly, he had closed my program 　　7　　 saving it－all I had done had disappeared! I 　　8　　 him．He cried a lot as my mother came and beat him．My mother also asked him to leave my room at once．

　　Then I did my homework 　　9　　．At 10∶00 pm．I finished it．When I was going to turn off the 　　10　　 I saw the photo of my 　　11　　 that he had put on my table．I looked at his lovely face and remembered how 　　12　　 he was when my mom beat him．I really felt 　　13　　．I went to see what he was doing．I found he was 　　14　　 in my parents'bed．I kissed his face．He woke up, got up and said．“I'm sorry．I won't bring you any more trouble．”

　　I was as moved and said．“From now on, my room is not only mine．It is 　　15　　!” That very night, Mike and I shared not only the room, but the bed．

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　　I stood there listening to my father shout at top of his voice．The look on his face said that one of us had done something 　　1　　．

　　“Which one of you did this?”

　　We all looked down at the 　　2　　．There was child’s handwriting in chalk there．I was filled with a lot of 　　3　　．I hoped no one could see it．Would he guess it was me?I was so worried．When he asked me, I lied,“Not me, Dad．”

　　The others denied(否认)it as well．Of course, we all knew that one of us 　　4　　 have done it．But as the youngest and smallest of the three, I just couldn’t find the courage to tell the truth．

　　To 　　5　　 who had written on the step, Father gave us each a piece of paper and a pencil．“I want each of you to 　　6　　 exactly what you see on the step．”I tried my best to write the words 　　7　　．I didn’t want Dad to be able to tell it was me．

　　He 　　8　　 our pieces of paper and looked at them．“　　9　　 none of you will admit(承认)to have done it, then I will punish you all．”I stood there and said nothing．The last thing I wanted was for Dad to 　　10　　 me!

　　“I did it．”My sister stepped forward and said 　　11　　 had done something she hadn’t．She was grounded for a month．

　　We didn’t talk about that day for man years．Not until we were all older and I knew it was 　　12　　 to finally tell my dad it was really me．I always felt sorry because of it．That was the last time I let anyone take the blame for me．

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　　Mr．Whitson taught sixth-grade science．On the first day of class，he gave us a lecture about a creature called the cattywampus，an animal that was wiped out(灭绝)during the Ice Age．He passed around a skull(头骨)as he talked．We all took notes and later had a test．

　　When he returned my paper，I was shocked．There was a big red“X”through each of my answers．I had failed．There had to be some mistake！I had written down exactly what Mr．Whitson said．Then I realized that everyone in the class had failed．What had happened？

　　“Very simple．”Mr．Whitson explained．He had made up all those things about cattywampus．There had never been any such animal．The information in our notes was wrong．Did we expect praise(表扬)for wrong answers？

　　We were very angry．What kind of test was that？And what kind of teacher？

　　We should have figured it out(弄……明白)，Mr．Whitson said．At the very moment he was passing around that cattywampus skull，hadn’t he been telling us that no trace(迹象)of the animal remained(存在)？He had described its color and other facts he couldn’t have known．He had given the animal a strange name，and we still hadn’t been suspicious(有疑心的)．The zeroes on our papers would be recorded in his grade book，he said．And they were．

　　Mr．Whitson said he hoped we would learn something from this experience．Teachers and notebooks are not never wrong．In fact，no one is．He told us not to let our minds go to sleep and to speak up if we ever thought he or textbook was wrong．

　　I haven’t made any great scientific discoveries(科学发现)，but Mr．Whitson’s class gave me and my classmates something just as important：the courage(勇气)to look people in the eye and tell them they are wrong．He also showed us that you can have fun doing it．

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