About one million years ago, the Ice
Age began. The Ice Age was a long period of time in which four great glaciers
pushed southward to cover almost all the upper half of North America, and then
melted away. Each glacier was a thick sheet of ice and snow that spread out from
a centre near what is now Hudson Bay in Canada. The winters were long, and the
cool summers were too short to melt much of the ice and snow. The ever-growing
sheet built up to a thickness of two miles at its centre. As all
glaciers do, these great glaciers slid. They pushed down giant trees in their
paths and scraped the earth bare of soil. Many animals moved farther south to
escape. Others stayed and were destroyed. When winters of little
snow came, the summer sun cut into the edges of the ice sheets. As the glaciers
melted, rocks, soil and other things A. 1,000 years B. 100 years C. 1,000,000 years D. 11,000 years
更多"Passage Four
About one mi"的相关试题:
[单项选择] Passage Four
About one million years ago, the Ice
Age began. The Ice Age was a long period of time in which four great glaciers
pushed southward to cover almost all the upper half of North America, and then
melted away. Each glacier was a thick sheet of ice and snow that spread out from
a centre near what is now Hudson Bay in Canada. The winters were long, and the
cool summers were too short to melt much of the ice and snow. The ever-growing
sheet built up to a thickness of two miles at its centre. As all
glaciers do, these great glaciers slid. They pushed down giant trees in their
paths and scraped the earth bare of soil. Many animals moved farther south to
escape. Others stayed and were destroyed. When winters of little
snow came, the summer sun cut into the edges of the ice sheets. As the glaciers
melted, rocks, soil and other things A. the Ice Age was a long period of time B. great glaciers covered North America many years ago C. changes in climate helped to melt the glaciers D. how glaciers changed North America
[单项选择] Passage One
About four years ago, Kerry Sturgill
found herself at a career crossroads: Should she stay in an industry populated
by extroverts(外向型的人) or jump ship to a more reflective place where introverts
like her were in the majority Career counselors had told her to
get out of the highly extroverted public relations fields " so you can be happy
and do what you are. " Among the less fast-paced areas they pointed to: art,
scientific research, data analysis. Such a move is definitely
the right road for many introverts struggling to fit into an extroverted
workplace. So, just what is an introvert anyway It’s someone
who is energized by thought and reflection, while extroverts are energized by
socializing. Introverts naturally need to think before they speak.
Extroverts use the speaking process to figure out what it is they want t A. introverts should try to avoid working in a highly extroverted environment B. introverts should try to change themselves to fit into an extroverted working environment C. extroverts should work in less fast-paced areas such as art and scientific research D. introverts can be happier if they can find jobs in the field of public relations
[单项选择]Passage One Just 30 years ago some 700 million people lived in cities. Today the number stands at 1,800 million, and by the end of the century it will be up to 3,000 million-more than half the world’s estimated population. By the year 2000 an estimated 650 million people will crowd into 60 cities of five million or more-three quarters of them in the developing world. Only a single First World city-metropolitan Tokyo, which will have 24 million people-is expected to be among the global top five; London, ranked second in 1950 with ten million people, will not even make 2000’s top 25. In places where rates of natural population increase exceed three percent annually-meaning much of the Third World-that alone is enough to double a city’s population within 20 years. But equally powerful are the streams of hopeful migrants from the countryside. What faces and confuses urban planners is the huge scale of these trends. There have never been cities of 30 million p A. the biggest cities will still be in First World countries B. its development speed will be greater than that of London C. most of the biggest cities will be in the Third World countries D. Japanese will keep control of the growth of big cities such as Tokyo
[单项选择]A. Five years ago. B. Four years ago. C. Six years ago. D. Not long ago.
[单项选择]About one million years ago, the Ice Age began. The Ice Age was a long period of time in which four great glaciers pushed southward to cover almost all the upper half of North America, and then melted away. Each glacier was a thick sheet of ice and snow that spread out from a centre near what is now Hudson Bay in Canada. The winters were long, and the cool summers were too short to melt much of the ice and snow. The ever-growing sheet built up to a thickness of two miles at its centre. As all glaciers do, these great glaciers slid. They pushed down giant trees in their paths and scraped the earth bare of soil. Many animals moved farther south to escape. Others stayed and were destroyed. When winters of little snow came, the summer sun cut into the edges of the ice sheets. As the glaciers melted, rocks, soil and other things that had mixed with the ice and snow were left. New hills, lakes and rivers were formed. The last of the great glaciers began its melting about 11,00 A. the Ice Age was a long period of time B. great glaciers covered North America many years ago C. changes in climate helped to melt the glaciers D. how glaciers changed North America
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