题目内容
George and Carol were medical students at the same college and like many other college students, they enjoyed playing jokes on people. Both of them smoked, but they knew that their professor was strongly against it, because smoking was dangerous to one's health. One day they decided to play a joke on their professor.
At one of their medical lectures（讲座）there was always a skeleton（骨架模型）in the room so that the professor could show the students the different bones in the human body.
That afternoon. Carol and George put a cigarette（香烟）in the mouth of the skeleton that was to be used for their next lecture.
When the professor came in. he began talking and then noticed the cigarette. He went up to the skeleton, took the cigarette out of its mouth and said. “You really should give them up, old boy. Look what they're doing to you!”
56. What do the professor's words mean__________.
A. It's only a joke to put a cigarette into a skeleton's mouth.
B. He would persuade the skeleton to give up smoking.
C. Smoking is really dangerous. It may even cause death.
D. Students should not learn from the skeleton to smoke.
57. To whom did the professor really say these words？
A. To George and Carol only.
B. To the skeleton which he called “old boy”.
C. Only to himself.
D. To all the students who attended his lecture.
58. The underlined word “they” in the passage means_________.
A. George and Carol B. the students
C. the bones D. cigarettes
59. What do you think of the professor?
A. Serious but humorous. B. Honest and foolish.
C. Kind and polite. D. Hard to get along with.
天天向上一本好卷系列答案
小学生10分钟应用题系列答案London—coffee protects mice from radiation and could get the same way in humans, according to Indian scientists.
Scientist at India’s Bhabha Atomic Research Center discovered that mice injected with caffeine (咖啡因)remained alive after high doses(剂量)of normally lethal radiation.
Although the study was limited to animals, Kachadillilli George, head of the research team, believes the findings could have implications (something suggested ) for humans .
“It does suggest that coffee might have some beneficial effects in protecting against radiation,” he told New Scientist magazine late last month.
George and his team injected 471 mice with caffeine and left them uncovered to 7.5 grays of gamma radiation(伽玛射线),enough to kill most mice. But 25 days later 70 percent of the mice that had received 80 milligrams(毫克)of caffeine per kilogram of body weight were still alive.
On the contrary all 196 mice that had been left uncovered to the same radiation but had not been given any caffeine died.
【小题1】George and his team drew the conclusion from .
| A．the magazine | B．their invention | C．the experiment | D．their experience |
| A．both mice and humans | B．only mice |
| C．only humans | D．neither humans nor mice |
| A．these mice had been given only 80 milligrams of caffeine |
| B．these mice hadn’t been injected with caffeine |
| C．these mice were very big and strong |
| D．these mice hadn’t been given enough caffeine |
| A．Human and Mice | B．New Radiation Defense—Coffee |
| C．Deadly Radiation—Gamma Radiation | D．Mice Died of Caffeine |
| A．causing death | B．lively | C．exciting | D．rich |