River are on of the world's most important natural resources . Many cities are on the large rivers , and .....evry country has a least one river that....an imprtant part in the lives of its people. Besides transportation , river .....water for crops , water to drink , and recreation for people who live along their.....And in......to get water for crops , engineer sometimes build a dam.....a river and let water for crops , water to drink , and recreation for water not .....to irrigate fields but also to make electricity for homes and industries. .....the water often becomes polluted when cities on river bank grow up and the number of industries increases. We are learning that it is necessary to......rivers clean if we want to enjoy the benefit of the natural resources
Rivers are on of the world’s most important natural resources. Many cities are on the large rivers, and ……almost…….. every country has a least one river that …plays…….. an important part in the lives of its people. Besides transportation, river.......provide……………..water for crops, water to drink , and recreation for people who live along their ……banks…….. And in ……order…….to get water for crops, engineers sometimes build a dam…across………a river and let water become a lake behind the dam. Then people can use their water not……only…..to irrigate fields but also to make electricity for homes and industries. ……However…….the water often becomes polluted when cities on river bank grow up and the number of industries increases. We are learning that it is necessary to ……keep……rivers clean if we want to enjoy the benefits of the natural resources.
Rivers are on of the world’s most important natural resources. Many cities are on the large rivers, and……almost…….. every country has a least one river that …plays…….. an important part in the lives of its people. Besides transportation, rivers …provide……………..water for crops, water to drink , and recreation for people who live along their ……banks…….. And in ……order…….to get water for crops, engineers sometimes build a dam …across………a river and let water become a lake behind the dam. Then people can use their water not ……only………..to irrigate fields but also to make electricity for homes and industries. ……However…….the water often becomes polluted when cities on river bank grow……in……….size and the number of industries increases. We are learning that it is necessary to……keep……rivers clean if we want to enjoy the benefits of the natural resources.