完形填空

　　Robert performs his 24-foot boat past young willow(柳树)trees that stick out of the waters of the Mississippi River．　　1　　 dances off maples(枫树), their branches heavy with 　　2　　 spring leaves．But a 　　3　　 inspection discloses trouble behind the beautiful sight．Rubbish is 　　4　　 in a logjam(浮木阻塞)and hangs from the tree’s branches．

　　For the next three hours Robert and his team pull plastic bags, tanks, bottles and 　　5　　 bowling pins out of the water．Then they 　　6　　 for a picnic table caught in the trees．Welcome to the Mississippi River Beautification Project begun in 1997 with Robert’s one man 　　7　　 to pick up rubbish 　　8　　 a 400 mile stretch(伸展)of the 2340 mile river．That year, often working 　　9　　, the 22-year-old fellow cleaned 150 miles of shoreline．

　　At first the project appeared 　　10　　 and useless．But Robert tried his best to find 　　11　　, and with their backing, he soon had a new boat and five-man 　　12　　－the Boom Crane Crew．Last year the crew 　　13　　 from the water 44 055 gallon drums, 1104 tires and enough plastic bags to 　　14　　 a football field．Much of the waste will be 　　15　　．

　　“Robert’s operation is the only one actually in 　　16　　 on the river,” says Mark of the Mississippi River Basin Alliance, a union of environmental groups．“It’s the 　　17　　 I have ever seen in 20 years, and he is inspiring others to do the 　　18　　．”

　　“The river has given me a livelihood and brought me so much 　　19　　,” Robert says, “I want to do something in 　　20　　．”

完形填空

　　Robert performs his 24-foot boat past young willow(柳树)trees that stick out of the waters of the Mississippi River．　　1　　 dances off maples(枫树), their branches heavy with 　　2　　 spring leaves．But a 　　3　　 inspection discloses trouble behind the beautiful sight．Rubbish is 　　4　　 in a logjam(浮木阻塞)and hangs from the tree’s branches．

　　For the next three hours Robert and his team pull plastic bags, tanks, bottles and 　　5　　 bowling pins out of the water．Then they 　　6　　 for a picnic table caught in the trees．Welcome to the Mississippi River Beautification Project begun in 1997 with Robert’s one man 　　7　　 to pick up rubbish 　　8　　 a 400 mile stretch(伸展)of the 2340 mile river．That year, often working 　　9　　, the 22-year-old fellow cleaned 150 miles of shoreline．

　　At first the project appeared 　　10　　 and useless．But Robert tried his best to find 　　11　　, and with their backing, he soon had a new boat and five-man 　　12　　－the Boom Crane Crew．Last year the crew 　　13　　 from the water 44 055 gallon durms, 1104 tires and enough plastic bags to 　　14　　 a football field．Much of the waste will be 　　15　　．

　　“Robert’s operation is the only one actually in 　　16　　 on the river,” says Mark of the Mississippi River Basin Alliance, a union of environmental groups．“It’s the 　　17　　 I have ever seen in 20 years, and he is inspiring others to do the 　　18　　．”

　　“The river has given me a livelihood and brought me so much 　　19　　,” Robert says, “I want to do something in 　　20　　．”