閱讀課堂筆記
A rapid means of long-distance transportation became a necessity for the United States as settlement spread ever farther westward. The early trains were impractical curiosities, and for a long time the railroad companies met with troublesome mechanical problems. The most serious ones were the construction of rails able to bear the load, and the development of a safe, effective stopping system. Once these were solved, the railroad was established as the best means of land transportation. By 1860 there were thousands of miles of railroads crossing the eastern mountain ranges and reaching westward to the Mississippi. There were also regional southern and western lines.
38. The best title for this passage would be ________
A) Settlements Spread Westward
B) The Coast-to-Coast Railroad: A Vital Link
C) American Railroad History
D) The Importance of Railroads in the American Economy
注：本文主題詞：transcontinent railroad，A選項直接摘抄，C選項範圍過大，D選項railroads範圍過大
●文章標題題型：1.文章主題詞必須在選項中出現
2.選項範圍恰如其分，不可過大，亦不可過於細節
範圍過大：選項本身範圍過大;選項缺少文章中的`限定詞
範圍過細：只出現某一段中心事物的選項
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