For the question "who discovered America?" some would _1_
reply, "earliest inhabitants, the American Indians", others _2_
would answer, "Christopher Columbus", and yet others, "Bjarni Herjolfsson", depending on the point of view of the person answering. Each of these answer is in fact correct, but none of them is a correct answer. _3_
Strictly speaking, Herjolfsson in the year 986 and Columbus in 1492 discovered only infinitesimal part of America, and neither _4_
of them realized they had sailed along the coast of a new state. As _5_
for the Indians living in America in the early 17th century, each group knew only a part of the land mass—the expanse which _6_
varied depending on the group — and none had an overall view of the continent. The truth is that America, and North America in particularly, was discovered — if we can use that word — one _7_
step at a time, by a number of people too great to count. In tern _8_
of geographical discoveries, it took more than four centuries of exploration, from the time of the arrival of the first Europeans, to discover and traverse a navigable passage across Northwest _9_
Passage. The discovery of North America went far beyond the bounds of geography, moreover. Ample evidences of this can _10_
be found by looking through the centuries-old acco9unts written by explores and travelers, which make up a important part of the Rare Book Collection of the National Library of China.
答案：
1. For-To
2. earliest前加the
3. a-the
4. only+an
5. state-continent
6. which前加of
7. particularly-particular
8. term-terms
9. ocean-oceans
10. evodemces-evidence