问题 多项选择题

再生水是城市的第二水源,对再生水的合理利用既能减少水环境污染,又可以缓解水资源紧缺的矛盾,是贯彻可持续发展的重要措施。下列选项中,可以使用再生水的是( )。

A.灌溉

B.冷却设备补充用水

C.牲畜饮用

D.城市喷泉

答案

参考答案:A,B,C,D

解析: 再生水是指污水经适当处理后,达到一定的水质指标,满足某种使用要求,可以进行有益使用的水。再生水的用途很多,可以用于农田灌溉、园林绿化、工业(冷却水、锅炉水、工艺用水)、大型建筑冲洗以及游乐与环境(改善湖泊、池塘、沼泽地,鱼类养殖等),还有消防、空调和水冲厕等市政杂用。再生水用于农、林、牧业除了作为粮食作物、经济作物的灌溉、种植与育苗等外,还可用于家畜和家禽用水。

完形填空

 Barack Obama is the 44th president (总统) of the United States. His date of birth is August 4th, 1961. He was elected (被选举为) president on November 4th, 2008.Obama has a very healthy lifestyle. As a president, he is always very busy and works about 10 hours a day. But he still spends some time doing exercise. At about 7:30 every morning he goes to a gym. He does exercise there for about 90 minutes every day. He says that doing exercise makes him young and healthy. Doing exercise can make him relaxed. His eating habits are also very healthy. He usually stays away from junk food. He eats a lot of vegetables and fruit every day. He doesn’t like coffee or ice cream. His favorite food is the pizza (比萨饼) from a restaurant in Chicago. The restaurant’s name is Italian Fiesta Pizzeria.

Do exercise every day from now on. You’ll be as healthy as Obama!   

小题1:Obama does exercise ______.

A.every day

B.once a week

C.twice a week

D.three times a week小题2:Obama was _________ years old when he was elected president.

A.27

B.37

C.47

D.57小题3:Obama likes ______ best according to the passage.

A.coffee

B.ice cream

C.pizzas

D.hamburgers小题4:We can learn that ______ from the passage.

A.Obama doesn’t eat breakfast with his family

B.Obama goes to bed before 10 o’clock every night

C.Obama does exercise in a park every morning

D.Obama thinks doing exercise is good for him小题5:The passage is mainly about _________.

A.Obama’s work

B.Obama’s hobbies

C.Obama’s family

D.Obama’s lifestyle

单项选择题