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　　One of the most important events in the modern Olympic games is the Marathon race. The reface 1 one of the great events in Greek history.

　　In 490 ＢＣabout 10,000 Greeks fought 2 the Persian away at a place 3 Marathon. It is said that the Persians were ten times as 4　　as the Greeks. But, 5 the brave attack of the Greeks, the Persians were badly beaten and 6 away from the plain of Marathon. When the Persians had run away, a soldier, 7 as the most famous 8 in Athens, 9 to carry the good news to the city 10 full speed．

　　Although he had fought through the battle and received many wounds, the soldier at once started off towards the 11 city. It was twenty-six and a quarter miles 12 the plain of Marathon to the Marketplace of Athens, 13　　the elders of Athens had gathered 14 for news. He ran and ran 15　　hills and across plains. As he went on , his lips became dry and his breathing hard. But he thought of the 16 of the people of Athens 17 hearing the news, and he ran harder than ever.

　　The elders of Athens heard a great shout and saw a soldier staggering(蹒跚)toward them. “Rejoice! Rejoice! We won!” gasped the soldier, and fell down 18 .

　　In 19 of this noble soldier and athlete we have in the modern Olympic Games the Marathon race, 20 the athletes run this same distance.

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This was no ordinary class. The students who came together were all science or engineering professors at Cornell University. They had interrupted their research to accept an invitation to take part in an unusual experiment: “an interesting week of poetry.” This class was part of a study to answer the questions: Why is science difficult for many nonscience students? What can teachers learn about teaching if they take a class that is not in their field?

The students in the poetry class listened to lectures and took notes. They had reading tasks and had to write three short papers. All students noticed one thing – the importance of spoken words. In science and engineering classes, the instructors put tables and drawings on the blackboard. But in this poetry class, the instructors just talked. They didn’t write anything on the board.

The scientists and engineers noticed one similarity between science and poetry. In both subjects, students need to find layers (层次)　of meaning . Some layers are simple, clean, and on the surface; other layers are deeper and more difficult. This search for different levels of meaning doesn’t happen much in undergraduate(本科)　science classes, but it is important later, in graduate school. And it is always important in humanities(人文科学).

Both the poetry instructors and their students learned something about teaching from this experience. One poetry instructor, for example, now sees the importance of using informative as he teaches. Most of the scientists agreed on several points. First, humanities classes might help science students to see patterns and decide which information is important. Second, the poetry class was fun. One engineer decided, “We need to change the way we teach engineering to make to make it an enjoyable experience for students.”

But perhaps the most important result of the experience was this; All of the professors began to think about how they teach and how they cam teach better.

What do we know about this unusual class?

A. The teachers did lots of writing on the board

B. The teacher were invited to attend several lectures.

C. The student were professors from a university

D. The students were studying science and humanities.

The experiment was designed to find out              

   A. how to teach the students in the science class

B. whether poetry is difficult for science students

C. what to be taught in the humanities class

D. why many humanities students find science hard.

Finding levels of meaning is            .

   A. important for graduate students in humanities

B. difficult for graduate students in humanities

C. common for undergraduate students in science

D. easy for undergraduate students in science.

What did the science professors learn after the experiment?

   A. They should change the way they teach

B. A poem could be explained in clear definitions.

C. A poetry class could be more informative.

D. Their teaching was an enjoyable experience.