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Readthepassageandfillintheblankswithproperwords.AgiantdamwasbuiltmanyyearsagotocontroltheColoradoRiverintheU.S.Thisdamwasbtoprotectthelandandhousesaroundtheriver.Thishugedami

题目详情

Read the passage and fill in the blanks with proper words.

  A giant dam was built many years ago to control the Colorado River in the U.S. This dam was b________ to protect the land and houses around the river.

  This huge dam is in the Black Canyon. It is p________ to drive a car from one side of the river to the other on a road, which is on the t________ of the dam. This dam is so big that there is an elevator inside. The elevator goes down forty-four stories from the road to the b________. There is enough concrete in this dam to build a highway from New York to San Francisco. Thousands of people worked on this dam for five years.

  This huge dam was c________ Boulder Dam when it was finished in 1936. Later it was renamed Hoover Dam in honor of a president of the United States. Hoover Dam, one of the h________ dams in the world, is situated between the states of Arizona and Nevada.

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built;possible;top;bottom;called;highest