TAILIEUCHUNG - Reading and close tests

Read the text carefully and then choose the correct answers A .Drought is a condition that results when the average rainfall for a fertile area drops far below the normal amount for a long period of time. In areas that are not irrigated | Tài liệu chi xem đươc một số trang đầu. Vui lòng download file góc để xem toàn bộ các trang Read the text carefully and then choose the correct answers A .Drought is a condition that results when the average rainfall for a fertile area drops far below the normal amount for a long period of time. In areas that are not irrigated the lack of rain causes farm crops to wither and die. Higher than normal temperatures usually accompany periods of drought. They add to the crop damage. Forest fires start easily during droughts. The soil of a drought area becomes dry and crumbles. The rich topsoil is often blown away by the hot dry winds. Streams ponds and wells often dry up during a drought and animals suffer a drought may even die because of the lack of water 1. When will drought happen a. in the rainy season b. When there is not enough rainfall for a fertile area for a long period of time c. When it rains heavily d. When rivers are dry 2. The lack of rain causes. a. farm crops to wither and die b. soil to be fertile c. a good harvest d. irrigation 3. The temperatures during a drought are. a. normal b. low c. high d. comfortable 4. The soil of a drought area. a. becomes dry and crumbles c. blows away and will never be lack 5. A drought causes . a. the lack of water c. forest fires b. becomes more fertile d. easy to plough b. the crop damage d. all are correct B. In America erosion of farmland by wind and and water has been a problem since settlers first come there and ploughed the pastures and grasslands in the 19th century. By the 1930s more than 282 million acres of farmland were damaged by erosion. After 40 years of conservation efforts it seems to be still in bad condition because of a lot of new demands which are placed on land by heavy crop production. The increasing of population leads to many others problems. The environment has been gradually destroyed. In the years ahead soil erosion and the population problems obviously cause the Americans many troubles 1. This

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