题目列表(包括答案和解析)
The vitamins necessary for a healthy body are normally supplied by a good mixed diet, including a variety of fruits and green vegetables. It is only when people try to live on a very restricted diet, say that when trying to lose weight, that it is necessary to make special provisions to supply the missing vitamins.
An example of the dangers of a restricted diet may be seen in the disease known as “beri-beri”, which used to make large numbers of Eastern people who lived mainly on rice suffer. In the early years of last century, a Dutch scientist named Eijkman was trying to discover the cause of beri-beri. At first he thought it was transmitted（传播）by a germ（病菌）. He was working in a Japanese hospital, where the patients were fed on polished rice which had had the outer coverings removed from the grain. It was thought this would be easier for weak and sick people to digest.
Eijkman thought his germ theory was proved when he noticed the chickens in the hospital yard, which were fed on remains from the patients’ plates, were also showing signs of the disease. He then tried to separate the germ, which he thought was causing the disease, but his experiments were interrupted by a hospital official, who ordered that the rice without coverings, even though left over by the patients, was too good for chickens. It should be recooked for the patients, and the chickens should be fed on cheap, rough rice with the outer coverings still on the grain.
Eijkman noticed that the chickens began to recover on the new diet. He began to consider the possibility that eating unmilled rice（糙米）somehow prevented or cured beri-beri — even that a lack of some ingredient（成分）in the coverings may be the cause of the disease. Indeed this was the case. The element needed to prevent beri-beri was shortly afterwards separated from rice coverings and is now known as vitamin B. The milled rice, though more expensive, was in fact causing the disease the hospital was trying to cure. Nowadays, this terrible disease is much less common thanks to our knowledge of vitamins.
【小题1】According to the passage, a good mixed diet ________.
| A．is suitable for losing weight | B．should be only fruits and vegetables |
| C．normally contains enough vitamins | D．is often difficult to arrange |
| A．It killed large numbers of people. | B．It resulted from lack of vitamins. |
| C．It was transmitted by milled rice. | D．It was caused by diseased chickens. |
| A．A Good Mixed Diet | B．New Discovery |
| C．The Dangers of Beri-beri | D．The Importance of Vitamins |
We took the bus from the suburb every early morning that summer 3 years ago. One of the passengers was a small 36 man who took the bus to the centre for senior citizens every morning. He walked with a stoop (佝偻) and a sad look on his face when he, with some difficulty, 37 the bus and sat down alone behind the driver. No one ever paid very much attention to him.
Then one 38 morning he said good morning to the driver and smiled before he sat down. The driver 39 guardedly. The rest of us were silent. The next day, the old man boarded the bus energetically, 40 and said in a loud voice: “And a very good morning to you all!” Some of us looked up, amazed, and murmured “Good morning,” 41 . The following weeks we were more alert (留意的). Our friend was now dressed in a nice old suit and a wide out-of-date 42 . The thin hair had been carefully combed. He said good morning to us every day and we 43 began to nod and talk to each other.
One morning he had a bunch of wild flowers in his hand. The driver 44 smilingly and asked:“Have you got yourself a girlfriend, Charlie?”and he nodded shyly and said yes. The other passengers 45 and clapped at him. Charlie bowed and waved the 46 before he sat down on his seat. Every morning after that Charlie always brought a flower. Some of the 47 passengers began bringing him flowers for his bouquet(花束).
The summer went by, and 48 was closing in, when one morning Charlie wasn't waiting at his usual 49 . When he wasn't there the next day and the day after that, we started wondering if he was sick or — 50 — on holiday somewhere.
One day, we learned from the staff working in the centre for senior citizens that the elderly 51 was fine, but he hadn't been coming to the 52 that week. One of his very close friends had died at the weekend. They 53 him back on Monday. How silent we were the rest of the way to work.
The next 54 Charlie was waiting at the stop, stooping a bit more, a little bit more grey, and without a tie. He seemed to have shrinked（缩小）again. Inside the bus was a 55 . All of us sat with our eyes filled with tears and a bunch of wild flowers in our hands.
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The vitamins necessary for a healthy body are normally supplied by a good mixed diet, including a variety of fruits and green vegetables. It is only when people try to live on a very restricted diet, say that when trying to lose weight, that it is necessary to make special provisions to supply the missing vitamins.
An example of the dangers of a restricted diet may be seen in the disease known as “beri-beri”, which used to make large numbers of Eastern people who lived mainly on rice suffer. In the early years of last century, a Dutch scientist named Eijkman was trying to discover the cause of beri-beri. At first he thought it was transmitted（传播）by a germ（病菌）. He was working in a Japanese hospital, where the patients were fed on polished rice which had had the outer coverings removed from the grain. It was thought this would be easier for weak and sick people to digest.
Eijkman thought his germ theory was proved when he noticed the chickens in the hospital yard, which were fed on remains from the patients’ plates, were also showing signs of the disease. He then tried to separate the germ, which he thought was causing the disease, but his experiments were interrupted by a hospital official, who ordered that the rice without coverings, even though left over by the patients, was too good for chickens. It should be recooked for the patients, and the chickens should be fed on cheap, rough rice with the outer coverings still on the grain.
Eijkman noticed that the chickens began to recover on the new diet. He began to consider the possibility that eating unmilled rice（糙米）somehow prevented or cured beri-beri — even that a lack of some ingredient（成分）in the coverings may be the cause of the disease. Indeed this was the case. The element needed to prevent beri-beri was shortly afterwards separated from rice coverings and is now known as vitamin B. The milled rice, though more expensive, was in fact causing the disease the hospital was trying to cure. Nowadays, this terrible disease is much less common thanks to our knowledge of vitamins.
1.According to the passage, a good mixed diet ________.
|
A．is suitable for losing weight |
B．should be only fruits and vegetables |
|
C．normally contains enough vitamins |
D．is often difficult to arrange |
2.What do we know about the disease beri-beri?
|
A．It killed large numbers of people. |
B．It resulted from lack of vitamins. |
|
C．It was transmitted by milled rice. |
D．It was caused by diseased chickens. |
3.What can be the best title of the passage?
|
A．A Good Mixed Diet |
B．New Discovery |
|
C．The Dangers of Beri-beri |
D．The Importance of Vitamins |
完型填空（共20小题：每小题1.5分，满分30分）
The last day of the final examination arrived. In a large eastern university, on the steps of one building, a group of students were talking about the exam that was going to begin in a few 26. On their faces was confidence. This was their 27 exam—then on to graduation and jobs.
Some talked of jobs they already had, others talked of jobs they 28 get. With the certainty of four years of college, they felt 29 and able to take control of the world.
The coming exam, they knew, would be a(n) 30 task, as the professor had said they could bring 31books or notes they wanted, requesting only that they did not 32 each other during the test.
33 they entered the classroom. The professor handed out the papers. And smiles 34 on the students’ faces as they found there were only five questions.
Three hours had passed 35 the professor began to collect papers. The students no longer looked confident. On their faces was a frightened expression. Papers in hand, no one spoke as the professor faced the class.
He looked at the 36 faces before him, and then asked, “How many completed all five questions?” 37 a hand was raised.
“How many answered four?” Still no hand.
“Three? Two?” The students moved restlessly in their seats.
“One, then? Certainly somebody finished 38 .”But the class remained silent.
The professor put down the papers. “That is exactly what I 39 ,” he said. “I just want you to know that, although you have completed four years of study, there are 40 many things about the 41 you don’t know. These questions you could not answer are relatively common in 42 practice.” Then, smiling, he added, “You will all 43 this course, but remember—even though you are now college graduates, your education had just 44 .”
The years have weakened the name of the professor, but not the 45 he taught.
1. A．seconds B．minutes C．hours D．days
2. A．only B．first C．very D．last
3. A．would B．must C．had to D．used to
4. A．glad B．ready C．sorry D．nice
5. A．interesting B．necessary C．easy D．unusual
6. A．no B．either C．any D．some
7. A．listen to B．look at C．care for D．talk to
8. A．Hardly B．Happily C．Quickly D．Carefully
9. A．appeared B．changed C．failed D．stopped
10. A．then B．as C．before D．after
11. A．pleased B．worried C．surprised D．moved
12. A．Not B．Once C．Only D．Even
13. A．all B．none C．one D．it
14. A．wondered B．enjoyed C．hated D．expected
15. A．even B．already C．so D．still
16. A．exam B．subject C．question D．college
17. A．every day B．yearly C．everyday D．monthly
18. A．pass B．fail C．take D．start
19. A．begun B．completed C．failed D．succeeded
20. A．subject B．things C．words D．lessons
The vitamins necessary for a healthy body are normally supplied by a good mixed diet, including a variety of fruits and green vegetables. It is only when people try to live on a very restricted diet, say that when trying to lose weight, that it is necessary to make special provisions to supply the missing vitamins.
An example of the dangers of a restricted diet may be seen in the disease known as “beri-beri”, which used to make large numbers of Eastern people who lived mainly on rice suffer. In the early years of last century, a Dutch scientist named Eijkman was trying to discover the cause of beri-beri. At first he thought it was transmitted（传播）by a germ（病菌）. He was working in a Japanese hospital, where the patients were fed on polished rice which had had the outer coverings removed from the grain. It was thought this would be easier for weak and sick people to digest.
Eijkman thought his germ theory was proved when he noticed the chickens in the hospital yard, which were fed on remains from the patients’ plates, were also showing signs of the disease. He then tried to separate the germ, which he thought was causing the disease, but his experiments were interrupted by a hospital official, who ordered that the rice without coverings, even though left over by the patients, was too good for chickens. It should be recooked for the patients, and the chickens should be fed on cheap, rough rice with the outer coverings still on the grain.
Eijkman noticed that the chickens began to recover on the new diet. He began to consider the possibility that eating unmilled rice（糙米）somehow prevented or cured beri-beri — even that a lack of some ingredient（成分）in the coverings may be the cause of the disease. Indeed this was the case. The element needed to prevent beri-beri was shortly afterwards separated from rice coverings and is now known as vitamin B. The milled rice, though more expensive, was in fact causing the disease the hospital was trying to cure. Nowadays, this terrible disease is much less common thanks to our knowledge of vitamins.
According to the passage, a good mixed diet ________.
A. is suitable for losing weight B. should be only fruits and vegetables
C. normally contains enough vitamins D. is often difficult to arrange
What do we know about the disease beri-beri?
A. It killed large numbers of people. B. It resulted from lack of vitamins.
C. It was transmitted by milled rice. D. It was caused by diseased chickens.
What can be the best title of the passage?
A. A Good Mixed Diet B. New Discovery
C. The Dangers of Beri-beri D. The Importance of Vitamins
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