Rivers are on of the world's most important natural resources. Many cities are on the large rivers, and (1).................................. every country has a least one river that (2)................................... an important part in the lives of its people. Besides transportation, rivers (3)....................................... water for crops, water to drink, and recreation for people who live along their (4)......................................... And in (5)................................ to get water for crops, engineers sometimes build a dam (6).................................... a river and let water become a lake behind the dam. Then people can use their water not (7).................................... to irrigate fields but also to make electricity for homes and industries. (8)....................................... the water often becomes polluted when cities on river bank grow (9)....................................... and the number of industries increases. We are learning that it is necessary to (10)........................................ rivers clean if we want to enjoy the benefits of the natural resources.
giải thích vì sao chọn vậy
1 almost
2 plays
3 provide
4 banks
5 order
6 across
7 only
8 However
9 faster
10 keep
Giải thích
1 almost every: hầu hết
2 đi với important role sẽ là động từ play
3 provide: cung cấp
4 bank: bờ
5 in order to là một cấu trúc để chỉ mục đích
6 xây đập ngang qua sông: across
7 not only....but also: không những, mà còn
8 Sau khi nói về lợi ích của sông thì người ta đề cập đến việc ô nhiễm của sông, do đó hai vế trái ngược nhau: dùng however
9 faster: nhanh hơn, grow faster: phát triển nhanh hơn
10 keep st clean: giữ cái gì sạch
