[填空题]The icebergs are rarely seen because ______.

[填空题]The icebergs are rarely seen because ______.

[多项选择]Love on campus is no more a rarely seen phenomenon nowadays. Most of the college students are having or once had loving experience in their campus life. Is it appropriate to have a campus love while putting the study aside Or it is an indispensable part of college life What is your opinion Write an essay of about 400 words on the following topic.

In the first pact of your essay you should state clearly your main argument, and in the second part you should support your argument with appropriate details. In the last part you should bring what you have written to a natural conclusion or make a summary.
Marks will be awarded for content, organization, grammar and appropriateness. Failure to

[填空题]The icebergs are dangerous because they are hidden ______ and can turn over unexpectedly.

[单项选择]Rarely we have seen such an effective actor as he has proven himself to be.
A. Rarely
B. we have seen
C. as he
D. to be

[填空题]
1 Icebergs are among nature’s most spectacular(壮观的) creations, and yet most people have never seen one. A vague air of mystery envelops them. They come into being—somewhere—in faraway, frigid waters, amid thunderous noise and splashing turbulence, which in most case no one hears or sees. They exist only a short time and then slowly waste away(消融) just as unnoticed.
2 Objects of sheerest(最纯粹的) beauty they have been called. Appearing in an endless variety of shapes, they may be dazzlingly white, or they may be glassy blue, green or purple, tinted faintly or in darker hues. They are graceful, stately, inspiring—in calm, sunlight seas.
3 But they are also called frightening and dangerous, and that they are—in the night, in the fog, and in storms. Even in clear weather one is wise to stay a safe distance away from them. Most of their bulk is hidden below the water, so their underwater parts may extend out far beyond

[填空题]I was frightened because I had never seen him in such______(angry) before.

[单项选择]I rarely wear a raincoat because I spend most of my time in a car.
A. normally
B. seldom
C. continuously
D. usually

[单项选择]Although this could be seen as a strength because it allows flexibility, it can also be argued that it invalidates the theory; in this case several people’s rights must be relinquished to reach a conclusion.（　）
A. given up
B. put off
C. thought of
D. held on

[填空题]The concept of obtaining fresh water from icebergs that are towed to populated areas and arid regions of the world was once treated as a joke more appropriate to cartoons than real life. But now it is being (47) quite seriously by many nations, especially since scientists have warned that the human race will (48) its fresh water supply faster than it runs out of food.
Glaciers are a possible (49) of fresh water that has been overlooked until recently. Threequarters of the Earth’s fresh water supply is still tied up in glacial ice, a reservoir of (50) fresh water so immense that it could (51) all the rivers of the world for 1,000 years. Floating on the oceans every year are 7,659 trillion metric tons of ice encased in 10,000 icebergs that break away from the polar ice caps, more than ninety percent of them from Antarctica.
Huge glaciers that (52) over the shallow continental shelf give birth to icebergs