2016年12月英語四級考試閲讀練習題

英語四級考試中閲讀所佔比重為百分之三十五，閲讀的重要性不言而喻。下面是yjbys網小編提供給大家關於英語四級考試閲讀練習題，希望對同學們的備考有所幫助。

The life story of the human species goes back a million years, and there is no doubt that man came only recently to the western hemisphere. None of the thousands of sites of aboriginal (土著的) habitation uncovered in North and South America has antiquity comparable to that of old World sites. Man’s occupation of the New World may date several tens of thousands of years, but no one rationally argues that he has been here even 100,000 years.

Speculation as to how man found his way to America was lively at the outset, and the proposed routes boxed the compass. With one or two notable exceptions, however, students of American anthropology soon settled for the plausible idea that the first immigrants came b way of a land bridge that had connected the northeast comer of Asia to the northwest corner of North America across the Bering Strait. Mariners were able to supply the reassuring information that the strait is not only narrow – it is 56 miles wide – but also shallow, a lowering of the sea level there by 100 feet or so would transform the strait into an isthmus (地峽). With little eels in the way of evidence to sustain the Bering Strait land bridge, anthropologists (人類學家) embraced the idea that man walked dryshod (不濕鞋的) from Asia to America.

Toward the end of the last century, however, it became apparent that the Western Hemisphere was the New World not only for man but also for a host of animals and plants. Zoologists and botanists showed that numerous subjects of their respective kingdoms must have originated in Asia and spread to America. These findings were neither astonishing nor wholly unexpected. Such spread of populations is not to be envisioned as an exodus or mass migration, even in the case of animals. It is, rather, a spilling into new territory that accompanies increase in numbers, with movement in the direction of least population pressure and most favorable ecological conditions. But the immense traffic in plant and animal’s forms placed a heavy burden on the Bering Strait land bridge as the anthropologists ahead envisioned it. Whereas purposeful men could make their way across a narrow bridge, the slow diffusion of plant and animals would require an avenue as a continent and available for ages at a stretch.

movement of plants and animals form Asia to America indicates ______.

they could not have traveled across the Bering Strait

Asia and the Western hemisphere were connected by a large land mass

the Bering Sea was an isthmus at one time

migration was in the one direction only

author is refuting the notion that _____.

arose in America independently of life in Europe

first settlers in America came during the sixteenth century

C.a large continent once existed which has disappeared

was a host to animals and plants

using the words “boxed the compass “(in Line 7) the author implies that _____.

migration of mankind was from West to East

migration of mankind was from East to West

ind traveled in all directions

ind walked from Asia to America

reason for the migration not mentioned by the author is _____.

crowding

rable environmental conditions

ne

existence of a land bridge

may assume that in the paragraph that follows this passage the author argues about______.

contributions of anthropologist

contributions of zoologists and botanists

contributions made by the American Indians

existence of a large land mass between Asia and North America

答案：BCCCD