A
Meet some famous US bridge engineers. They played key roles during the late 1800s and early 1900s.
John A. Roebling(1806-1869)
John Roehling moved to the United States from Germany in 1830. He invented a way to make wire rope(钢丝索)to hold suspension(悬浮) bridges. He built his first railroad suspension bridges from Niagara, New York to Canada. His most famous bridge is New York's Brooklyn Bridge. He died after an accident during the construction. His son Washington completed the bridge by following his careful plans.
Ralph Modjeski(1861-1940)
Ralph Modjeski was born in Poland. He moved to the United States in 1876. By the early 1890s, he had opened his own bridge-building firm in Chicago. He built suspension and railroad bridges all over the country. His most famous bridge is the San Francisco-Oakland Bay Bridge. He also employed Joseph B. Strauss. Strauss later opened his own firm and changed the idea of Bascule bridges(竖旋桥). Strauss is most famous for building the Golden Gate Bridge in San Francisco.
Conde McCullough(1887-1946)
Conde McCullough grew up in Lowa. His fame took off when he moved to Oregon in 1926. He oversaw the state's Department of Transportation for 25 years. During that time, he helped build many bridges along Oregon's newly constructed coastal Highway 101. He combined(结合)artistic styles with practical function. He became known for his use of simple but attractive arches(拱门).
Othmar Ammann( 1861-1965)
Othmar Ammann was born in Switzerland. He settled in New York City in 1904. He worked on some of the most famous bridges that keep that city connected. They include the George Washington Bridge, the Triborough Bridge, the Goethals Bridge, and the Verrazzano-Narrows Bridge. Ammann was known for his ability to create bridges that combined beauty with strength.
21. Who completed New York's Brooklyn Bridge at last?
A. John A. Roebling. B. Washington. C. Conde McCullough. D. Othmar Ammann.
22. Which bridge is Strauss famous for?
A. The George Washington Bridge. B. The Golden Gate Bridge.
C. The San Francisco-Oakland Bay Bridge. D. The Verrazzano-Narrows Bridge.
23. What do the persons mentioned in the text have in common?
A. They were horn in the same place. B. They were all famous in the early 1800s.
C. They all set up their firms. D. They were all famous bridge engineers in the United States.
