[单项选择]

Passage 3
Man has become master of the earth’ s surface. He is constantly probing into the earth’ s depths and into the atmosphere’ s upper reaches. Yet it is doubtful whether man, with ’all of his intelligence and vigor, holds his planetary seat with greater assurance than a vast tribe of small, many-legged animals that pass their lives at his feet--the spiders.
Spiders are among the miracles of science. They dwell at higher altitudes than any other creature their size or lager. On the slopes of Mount Everest, at an altitude of twenty-two thousand feet-- five thousand feet above the vegetation line--lives a species of black spider only a quarter of an inch long. This is an incredible environment for creatures so delicately constructed. To protect themselves from the chill of night, they take shelter in crevices where the twenty-four-hour variation in temperature is only twelve degrees, as against forty-four on the outside.
S
A. delicate construction
B. ability to live in such varied environments
C. unusual intelligence
D. ability to withstand extreme cold

[单项选择]

Passage 3
Man has become master of the earth’ s surface. He is constantly probing into the earth’ s depths and into the atmosphere’ s upper reaches. Yet it is doubtful whether man, with ’all of his intelligence and vigor, holds his planetary seat with greater assurance than a vast tribe of small, many-legged animals that pass their lives at his feet--the spiders.
Spiders are among the miracles of science. They dwell at higher altitudes than any other creature their size or lager. On the slopes of Mount Everest, at an altitude of twenty-two thousand feet-- five thousand feet above the vegetation line--lives a species of black spider only a quarter of an inch long. This is an incredible environment for creatures so delicately constructed. To protect themselves from the chill of night, they take shelter in crevices where the twenty-four-hour variation in temperature is only twelve degrees, as against forty-four on the outside.
S
A. the smallest species of spiders
B. the highest altitude dweller among creatures of that size or larger
C. the only creature that lives at that altitude
D. capable of surviving in any environment

[单项选择]

Passage Five
After Man has dreamed about flying for a long time. Michael Moshier is a dreamer. He invented the Solo Trek.
The Solo Trek had a 120 horsepower engine with twin fans. Only one person flies. As you fly above the roofs, you lean a little forward. You can see everything under you. You are flying like Superman.
Michael Moshier looked at the jet belt and the rocket belt that was developed 20, 30 years ago. Nothing ever came from them. People still can’t fly.
Inventors have tried to make it easy for people to fly. Paul Moiler has been working on his flying car for 30 years. He now says it is ready for tests. It would take off and land vertically, go 600 miles an hour, and deliver 20 miles to the gallon. A computer would do the actual flying. He says it could be sold next year for about a million dollars.
NASA is working with Moshier to help develop his flying machine. The first users are likely to be military.
It
A. how a helicopter flies
B. how the Jetsons fly
C. how the airphibian flies
D. how Superman flies

[单项选择]According to the passage, man has built the modern world because ________.

[单项选择]

Passage One
A man once said how useless it was to put advertisements in the newspapers. "Last week," said he, "my umbrella was stolen from a London Church. As it was a present, I spent twice its worth in advertising, but didn’t get it back."
"How did you write your advertisement" asked one of the listeners, a merchant.
"Here it is," said the man, taking out of his pocket a slip cut from a newspaper. The other man took it and read, "Lost from the City Church last Sunday evening, a black silk umbrella. The gentleman who finds it will receive ten shillings on leaving it at No. 10 Broad Street."
"Now," said the merchant, "I often advertise, and find that it pays me well. But the way in which an advertisement is expressed is of great importance. Let us try for your umbrella again, and if it fails, I’ll buy you a new one." The merchant then took a slip of paper out o
A. the man got his umbrella back
B. the man wasted some motley on advertising
C. nobody found the missing umbrella
D. the umbrella was found somewhere near the church

[单项选择]According to the passage, a man wants a wife because ______.


A. he needs someone to help with his studies
B. he feels lonely without her
C. he cannot have clean clothes to wear without a wife
D. material comforts can not be attained without a wife