2. The government has to open the dams to provide more water for the people.

people build dams and levees to control the flooding. These projects, as well as reservoirs and wells, were called ( ).

Electricity generated from hydroelectric dams and wind power is more _______ than fossil fuel generated power.

In ancient times empires and civilizations grew up near ______. A: nature B: dams C: rivers D: buildings

What are the various types of structures on the earth in Civil Engineering A: Bridges B: Buildings C: Offshore structures D: Dams

It can be inferred from the passage that ______. A: if dams were built in river basins, the downstream ecology remained the same B: governments have to be responsible for the changes caused by the constructions of dams C: the results of controlling water flows by engineers can be well forecasted D: a dam can bring economical advantages for almost a century

It can be inferred from the passage that ______ A: if dams were built in river basins, the downstream ecology were remained the same B: governments have to be responsible for the changes caused by the constructions of dams C: the results of controlling water flows by engineers can be well forecasted D: a dam can bring economical advantages for almost a century

We should learn from this lesson and consider the long-term influence of dams ______ the short-term benefits. A: rather than B: owing to C: because of D: or else

What is planned for the continent A: Building dams along the coasts. B: Setting up several summer resorts along the coasts. C: Mapping the coast and the whole territory. D: Setting up permanent bases on the coasts.

American people's idea of mastering Nature can be seen in the following activities （ ）。 A: The construction of dams that hold back the waters of large rivers. B: All of the other three choices are correct. C: They moved the American frontier westward. D: The construction of tunnels that go through mountains.