5. The best title (题目) for the passage is

　 A. A Strange Continent　　　　　　　　　 B. An Ice Continent

　 C. Snowfall at the South Pole　　　　　　　 D. The World’s Desert

4. The snow turns to ice when

　 A. it gets wet.　　　　　　　　　　　　 B. the next snowfall comes.

　 C. the temperature gets colder.　　　　　　 D. the snow above it is heavy enough.

3. The snow in Antarctica is very deep because it

　 A. never stops falling.　　　　　　　　　 B. piles up year after year.

　 C. never melts.　　　　　　　　　　　　 D. both B and C.

2. Antarctica has

　 A. ten times as much moisture as the Sahara.

　 B. the same amount of moisture as the Sahara.

　 C. about one-tenth of the moisture of the Sahara.

　 D. none of the above.

1. Antarctica is called a desert because it

　 A. is sandy.　　　　　　　　　　　　　　　 B. has the same temperature as a desert.

　 C. has little moisture and no lakes or rivers.　　 D. there are no people there.

48、(1分)

　　 The Antarctica is a actually a desert. It is the only continent on the earth without a river or a lake.

　　 The Antarctica is all ice all year round. The warmest temperature ever recorded (所记录的) there is zero, at the South Pole. Explorers (探险家) used to think that a place so cold would have a heavy snowfall. But less than ten inches of snow falls each year. That is less than half an inch of water. Ten times that much moisture (水份) falls in parts of the Sahara.

　　 The little snow that falls in Antarctica never melts (融化). It continues to pile up deeper and deeper year after year and century after century. When the snow gets to be about eighty feet deep it is turned to ice by the weight of snow above it .

5. We can guess from the passage that

　 　A. Jack was as poor at history as Paul.　　 B. Jack was as good at history as Paul.

　 C. Jack was better at history than Paul.　　 D. Jack was poorer at history than Paul.

4. “How do you feel this morning?” From this question we can see Jack

　 A. knew Paul.　　　　　　　　　　　　 B. knew Paul very well.

　 C. wanted to help Paul with his history.　　 D. would lend Paul his notebook..

3. What made Paul feel fine at once?

　 A. The telephone call.　　　　　　 B. the coming test.

　 C. Jack’s notebook　　　　　　　 D. The fact that the test was not to be given that day.

2. It seemed that Paul

　 A. was good at history.　　　　　　　　 B. liked to study history.

　 C. lost interest in history.　　　　　　　 D. was ready for the history test.