黑龙江学位英语考试强化训练题
46. Gravity holds us dose the Earth's surface, and as a result, __________.
A. we can lift ourselves no more than a few feet above the Earth
B. nobody can jump a few feet into the air
C. no one will be pulled down
D. any one of us can Jump as high as expected
47. What would happen to a ball thrown upwards if there were no gravity?
A. It would spin round in space.
B. It would fly off into space
C. It would fall into a curved path.
D. It would move towards the Earth.
48. The ball thrown into the air would never come back to the ground __________.
A. without such a powerful horizontal push
B. if it were thrown upwards as hard as you can
C. should it travel in a curved path
D. were it not for gravity
49. The height the ball will reach depends on __________.
A. the escape velocity B. the limiting velocity
C. its starting velocity D. its traveling speed
50. What is it that makes it possible to put a spaceship into orbit?
A. the Earth's gravity B. a strong pull
C. a powerful engine D. the powerful rocket engine
Passage Three
Questions 51 to 55 are based on the following passage.
Does a bee know what is going on its mind when it navigates its way to distant food sources and back to the hive, using polarized sunlight and the tiny magnet it carries as an aid? Or is the bee just a machine? (Unable to do its mathematics and dance its language in any other way to use Donald Griffin's term) Does a bee have "awareness", or to use a phrase I like better, can a bee think and imagine?
There is an experiment for this, or at least an observation, made long ago by Karl Von Frisch and more recently confirmed by James Gould at Princeton, biologists who wish to study such things as bees to fly from the hive to one or another special place. To do this, they begin by placing a source of sugar very close to the hive so that the bees can learn what the game is about. Then, at regular intervals, the dish or whatever is moved progressively farther and farther from the hive.
Eventually, the target is being moved 100 feet or more at a jump, very far from the hive. Sooner or later, while this process is going on, the geologists shifting the dish of sugar will find the bees are out there waiting for them precisely where the next position had been planned. This is an uncomfortable observation to make.
51. Which of the following is the best title for the passage?
A. The Bee Hive: Nature's Candy Shop
B. Testing the Awareness of Bees
C. Navigational Techniques of Birds and Insects
D. Behaviorists Versus Biologists: A Zoological Debate
52. In the second paragraph why is Karl Von Frisch mentioned?
A. To introduce his observation on bee behavior.
B. To contrast his theories with those of James Gould.
C. To give credit to his description of the bee hive.
D. To support the argument that bees use sunlight to navigate.
53. According to the author, why was sugar used in the study?
A. To keep the bees nourished and healthy during the experiment.
B. To train the bees to travel to a particular place.
C. To reward the bees for performing the experiment correctly.
D. To ensure that the bees did not sting the scientists.
54. The result of the experiment explained in the passage seems to indicate which of the following?
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