IV. 阅读理解 （共20小题；每小题1.5分，满分30分）
When I was at university, I studied very hard. But a lot of my friends did very little work. Some did just enough to pass exams. Others didn't do quite enough. Fred Baines was one of them. He spent more time drinking in the Students' Union than working in the library.
Once, at the end of the term, we had to take an important test in chemistry. The test had a hundred questions. Beside each question, we had to write "True" or "False". While I was studying in my room the night before the test, Fred was watching television. Fred usually worried a lot the night before a test. But on that night he looked perfectly calm. Then he told me of his plan.
"It's very simple. There are a hundred questions and I have to get fifty correct to pass the test. I'll take a coin into the examination room. I haven't studied a chemistry book for months, so I'll just toss the coin. That way, I'm sure I'll get half the questions right."
The next day Fred came cheerfully into the examination room. He sat tossing a coin for half an hour as he marked down his answers. Then he left, half an hour before the rest of us.
The next day, he saw the chemistry professor in the corridor .
"Oh, good," he said. "Have you got the result of the test? What mark did I get?"
The professor looked at him and smiled.
"Ah, it's you, Baines. Just a minute."
Then he reached into his pocket and took out a coin. He threw it into the air, caught it in his hand and looked at it.
"I'm terribly sorry, Baines," he said, "you failed."
1. Fred Baines _______.
A. spent quite some time working in the Students' Union
B. worked hard at his lessons but he failed again and again
C. often failed his tests
D. wouldn't work hard so long as he could pass a test
2. Fred looked perfectly calm before the chemistry test because _______.
A. he was already well prepared for it
B. he didn't think the test was so important for him
C. someone had promised to help him out
D. he believed he had found out a way to pass the test without any difficulty
3. The professor told Baines the result of the test by tossing a coin because _______.
A. he hadn't marked all the papers yet
B. he couldn't remember the mark Baines got
C. he wouldn't hurt Baines' feeling by telling him the truth
D. he wanted to teach Baines a lesson