题目内容：

    Back when the Mississippi River flowed wild, its ever-changing waters moved soil across the North American continent. It picked up sand and dirt in the north and brought it to the southern areas of what we now call the state of Louisiana. Thousands of years later, man-made barriers called levees (防洪堤) and flood-control systems control the powerful river. But Louisiana officials are making plans to use the Mississippi River’s ancient power to build new land as a way to ease the threat of rising seas.

Engineers hope to remake the destroyed low-lying lands by copying nature—digging into the levees and redirecting the water. The water holds a lot of small dirt sediments (沉淀物). The sediments can flow into coastal basins.

Some critics question whether the idea presents its own environmental risks. But if it does work, the project would rebuild an important protection against storm waves. It would also help the land provide new living areas for birds and fish that depend on wetlands.

Saltwater is destroying the coast. Pathways cut for oil and gas development, boat travel and logging have worsened the problem. The state estimates that it has lost about 518,000 hectares of land since 1932. If nothing is done, more than twice that much land could disappear over the next 50 years.

Experts and officials have discussed the idea of using the river to rebuild the coast for many years. But it was not until money became available from the 2010 BP oil spill that the plan began to really take shape. In 2010, an explosion killed 11 people on an oil rig (石油钻塔) off the Gulf Coast that energy company BP operated. Millions of gallons of oil then flowed into the water over the next three months.

One year later, the United States government ruled that BP was responsible for the accident,

The company was ordered to pay billions of dollars for the damage. Louisiana is putting much of its share of the money toward coastal restoration.

1.What advantage will the new land bring?

A.Preventing severe drought.

B.Creating habitats for animals.

C.Controlling the powerful river.

D.Increasing the northern farm land.

2.What can cause the coast to disappear faster?

A.Energy changes.

B.Destroyed levees.

C.Man-made disasters.

D.Man-made water protection systems.

3.What made the plan of rebuilding the coast land come into effect?

A.The restoration of an oil rig.

B.The payment of compensation by BP.

C.The strong demand from oil companies.

D.The special support from some local critics.

4.What can be a suitable title for the text?

A.Use Nature Power to Stop Soil Losing

B.Let the River Go Back to Its Original State

C.Fight Coastal Destruction by Copying Nature

D.Remove the Man-Made Barriers from the River