A certain student passed all his examinations. Then he went to college to  21  his studies. There he wrote down his  22 for a course in English, but after the first 23 , he didn’t go to it any more.
The English lecturer 24_this student was always absent (缺席的) and thought he had  25_to another course, so he was  26  when he saw the boy’s name on the list of students who wanted to take the English  27at the end of this year.
The lecturer had  28 a difficult paper, which followed his  29 closely, and he was eager (热切的) to see  30 this student would answer the questions. He  31__the boy’s answers would be very bad, but when they  32 him and he examined them  33 , he was able to find only one small mistake in them. As this surprised him greatly, he  34 the paper repeatedly but still couldn’t find more than one mistake, so he  35 for the student to question him about it.
When he came and sat down, the lecturer asked him, “I  36 you came to my first lecture and you’ve been absent from all the others. But I’ve examined your  37 carefully and I’ve found only one small mistake in it. I’m curious (好奇的) to know your  38 .”
“I’m very  39  about that mistake,” answered the student. “After the examination, I  40  what I should have done. I would not have made that mistake if I had not been confused by your first lecture.” 

A certain student passed all his examinations. Then he went to college to  21  his studies. There he wrote down his  22 for a course in English, but after the first 23 , he didn’t go to it any more.

The English lecturer 24_this student was always absent (缺席的) and thought he had  25_to another course, so he was  26  when he saw the boy’s name on the list of students who wanted to take the English  27at the end of this year.

The lecturer had  28 a difficult paper, which followed his  29 closely, and he was eager (热切的) to see  30 this student would answer the questions. He  31__the boy’s answers would be very bad, but when they  32 him and he examined them  33 , he was able to find only one small mistake in them. As this surprised him greatly, he  34 the paper repeatedly but still couldn’t find more than one mistake, so he  35 for the student to question him about it.

When he came and sat down, the lecturer asked him, “I  36 you came to my first lecture and you’ve been absent from all the others. But I’ve examined your  37 carefully and I’ve found only one small mistake in it. I’m curious (好奇的) to know your  38 .”

“I’m very  39  about that mistake,” answered the student. “After the examination, I  40  what I should have done. I would not have made that mistake if I had not been confused by your first lecture.” 

D
A mysterious machine found in a 2,000-year-old Greek shipwreck may have been used to calculate the positions of planets, predict when eclipses (日、月蚀) were to occur, and study other parts of astronomy (天文学). When it was found underwater about 100 years ago, the machine was in poor shape. Its metal pieces had become one mass (堆), and then broke into pieces.
When the researchers began to study what was left of the machine, they thought it might have something to do with astronomy. To find out more, they recently used advanced imaging methods, including X-ray computer tomography (断层摄影术), to look inside the metal parts and to check for ancient writing on the machine.
According to their research, the researchers believed that this machine could have been used to compute eclipses of the sun and moon and was also able to show the movements of planets. A user could pick a day in the future and, work out a planet’s position on that date by moving some sort of crank (曲柄) on the machine.
Besides, the researchers discovered that the machine had at least 30 bronze gears (齿轮) with as many as 225 teeth, likely all cut by hand.
With all the collected information, the researchers came up with a new model for how the machine operated. The model has 29 of the 30 known gears and five more that were probably there but never found. Also，the new picture adds a previously undiscovered spiral dial (螺旋刻度盘) to the back of the machine near the bottom. A hand moving around the dial could have pointed to eclipses over a period of 18 years.
71. The passage is most probably taken from _____.
A. a short-story collection
B. a popular science magazine
C. a political report
D. an old personal diary
72. What is the passage mainly about?
A. New research on calculating the positions of planets.
B. A popular way of computing eclipses of the sun and moon.
C. Scientists’ interest in the secrets of a 2,000-year-old Greek shipwreck.
D. A mysterious machine which could be used for astronomical research.
73. What do we learn from the third paragraph of the passage?
A. The machine might have been used to calculate the positions of the planets.
B. Scientists made great progress in predicting eclipses of the sun and moon.
C. The researchers discovered some secrets in the Greek shipwreck.
D. The machine can be of great help for people working out the sizes of planets.
74. The researchers made a new model because they____.
A. wished to repair the broken machine
B. wanted to study the shipwreck more conveniently
C. hoped to know how the machine worked
D. expected it to be used in modern scientific research
75. Which of the following statements is TRUE about the old machine?
A. It has 35 gears on it.
B. It has a spiral dial.
C. It was invented about 100 years ago.
D. Its gears have many teeth.

完形填空

    My Aunt Edith was a widow （寡妇） of 50,working as a secretary,when doctors 1  what was then thought to be a very 2 heart illness.

    Aunt Edit doesn't 3 defeat easily.She began studying 4 reports in the library and found an article in a magazine about a wellknown 5 doctor,Dr.Michael DeBakey,of Houston,Texas.He had 6 the life of someone with the 7 illness.The article said Dr Debakey’s fees（费用）were very 8;Aunt Edith couldn’t possibly 9 them.But could he tell her of someone whose fee she could pay?

    So Aunt Edith wrote to him.She simply 10 her reasons for wanting to 11:her three children,who would be 12 their own in three or four more years,13 them a little girl who always 14 of traveling and 15 the world.There wasn’t a 16 of self-pity only warmth and humor（幽默）and the 17 of living.She mailed the letter,not really 18 an answer.

    A few days later,my doorbell 19.Aunt Edith didn’t 20 to come in;she stood in the hall and read aloud:Your beautiful letter 21 me very deeply.If you can come to Houston,there will be no 22 for either the hospital or the 23.

Signed:Michael DeBakey

　　 That was seven years ago.Since then,Aunt Edith has been 24 the world.Her three children are happily married.For her age,she is 25 of youngest,most alive people I know.