15．
阅读理解
This was my first real task to receive in my new school：go on the Internet and find information about a man named George Washington．As I searched the name，I found that there were two famous people having the same name who looked completely different!One invented hundreds of uses for peanuts（花生），while the other led some sort of army across America．I stared at the screen，wondering which one my teacher meant．I called my grandfather for a golden piece of advice； let the coin decide．I flipped（掷） a coin and Ah!Tails （背面）!My report would be about the great man who invented peanut butter，George Washington Carver．
Weeks later，I stood in front of the classroom and proudly read my homework．But things started to get strange．I looked around the room，only to find my classmates with big smiles on their faces and tears in their eyes and my stone-faced teacher．I was completely lost．"What could be causing everyone to act this way？"
Oh well，I dropped the paper and sat down at my desk，burning to find out what I had done wrong．As a classmate began his report，it all became clear，"My report is on George Washington，the man who started the American War of Independence．"The whole world became quiet!How could I know that my teacher meant that George Washington？
Of course，my subject result was awful．Sad but fearless，I decided to turn this around．I talked to the headmaster Miss Lancelot，but she said firmly：No re-dos； no new score．I felt that it was not fair，and I believed I deserved a second chance．So I threw myself heartily into my work for the rest of the school year．Ten months later，I sat in the headmaster's office again，but this time a completely different conversation．I smiled and flashed back to the terrible moment at the beginning of the year as the headmaster told me I was good enough to skip（跳过） the 6th grade and started the 7th grade next term．
根据材料内容选择最佳答案，并将其标号填涂在答题卡的相应位置．
46．The task I received was to find information aboutC．
A．my headmaster Miss Lancelot B．American War of Independence
C．George WashingtonD．uses for peanuts
47．B helped me decide what my report would be about．
A．The InternetB．A coinC．My grandpaD．My classmates
48．People in the class acted strangely becauseD．
A．I was too proud of my homework
B．the teacher's face turned to a stone
C．the whole world suddenly became quiet
D．I mistook what the homework was about
49．IA after I failed the subject．
A．worked harder to prove my ability
B．started to study from the 7th grade
C．was so frightened at the awful result
D．was given a second chance to redo the work
50．We can infer（推断） from the passage thatC．
A．the headmaster didn't like the writer at all
B．the writer's classmates felt sad at his mistake
C．the writer knew little about American history
D．the writer's grandpa was a very wise man．
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The world has lost one of the most respected（受尊敬的）leaders．Nelson Mandela，the former （前任的）South Afican president，passed away on Dec.5，2013．The whole world felt sorry about the death of Mandela，a great man of history．Mandela is mostly remembered for his efforts to end apartheid（种族隔离） in South Africa．Mandela was born in 1918．In South Africa，there are both black and white people．But at that time，Black people couldn't live or travel where they wanted．They didn't have the right to vote（选举权），either．Mandela didn't think that was right．He organized many activities against it，but he was sent to prison for 27 years．Under international pressure，the government set Mandela free in 1990．Great changes in the law began to end apartheid．At that time，Mandela chose to forgive （宽恕）his enemies．He shook hands with the people who wanted him dead．He also encouraged black
