【正文】
h for us. B. Our need for water is being larger and larger. C. There will be no water shortage in the future. D. We should take steps to deal with the water shortage problem. 3. To reuse water, we should __________. A. treat it with chemicals B. use it only once C. send it out into a sewer system D. make it flow into underground tanks 4. In order to have enough water, we should also make use of _________. A. icebergs and glaciers B. sea water C. rivers and lake D. underground water 5. In the passage, the writer tells us ________. A. to make enough water B. to pay more attention to the water shortage problem C. to pipe used water to a purifying plant D. to reuse the water B The United States has many different kinds of climates(氣候) . On the northwest coast(海岸) , the temperature changes very little between summer and winter, but the north central(中部的) states have a very different kind of climate. In those states, people wear light clothes in summer, and they need heavy woolen clothes in winter. In the southwest coast, the climate is rainy and warm during the winter, but the summer is dry and hot. In the northeast of the United States, summer temperatures are very different from winter temperatu res. Summer is usually hot, and winter is usually cold. Spring temperatures are warm, and fall temperatures are cool. Years ago, people in the cold parts of the United States didn’t often get fresh (新鮮的)vegetables and fresh fruits during the summer. Today, however(然而), trucks and trains carry fruits and vegetables very quickly to all parts of the United States. In this way, Americans “send their climates” to people in other states. 1. The summer and winter temperatures are almost the same _________ A. in the northeastern states B. on the north central states C. in the western states D. on the northwest coast 2. The word“fall”in this passage means ________. A. drop B. down C. autumn D. spring 3. Today people ___________ can get fresh vegetables and fruits. A. in the north central states B. in every part of the . C. in the cold parts of the . D. in the southwest part of the . 4. From this passage we know that the climate of the United States _______