问题 综合

读材料,回答下列问题。(10分)

我国西北干旱地区的地下水,主要来自呈扇形分布于山前平原地带或山间盆地的冲积物中,冲积扇上部是良好供水源地。但是,在某些地区,冲积扇上部是大片的砾石戈壁,而下部能利用的地段,土壤往往产生严重的盐渍化现象。我国劳动人民为了解决这一矛盾,早在2000多年前的西汉时期就创建了一种特殊的引水工程——坎儿井。如下图所示,坎儿井由地下的暗渠和地面上的竖井、明渠、蓄水池组成。竖井是开挖地下暗渠的通道,暗渠与地下水流向斜交,上游挖至地下含水层中,渗溢出来的地下水顺着暗渠沿坡流出地面,明渠将暗渠流出的地下水引入蓄水池,蓄水池起了调蓄灌溉水量的作用。

(1)坎儿井所在地区的水循环的主要环节有哪些?

(2)坎儿井的最大水量出现在什么季节,理由是什么?

(3)坎儿井开挖暗渠的原因是什么?蓄水池有什么作用?

(4)坎儿井在经济和环境等方面发挥的重要作用是什么?

答案

(1)蒸发、植物蒸腾、降水  2分

(2) 夏 新疆地处内陆,远离海洋,降水少,水源主要依靠冰雪融水,最大水量出现在气温最高、冰雪融水量最大的夏季.4分

(3)减少水的蒸发 调蓄灌溉水量  2

(4)充分利用水资源,发展农业生产     防止土壤盐渍化  2分

完形填空
We are living a fast life. It seems that everything has to be fast, for example,         food, fast Internet, fast roads, fast money. Every day we try to get things done         , but there are some moments that we have to slow down and enjoy our lives.
We are always          every day. I have to work eight hours or more a day at my full-time job. When I get home, it’s always over seven o’clock. I make an effort(努力) to         something. I try to find a bit of time for my hobby—writing. I hardly ever write and work        weekends. Those are my days to try to recharge (休整)and reduce the stress from my work. I sleep on the sofa during the day,          some beer in the open air or go out for a picnic if the weather is nice.
What I’m trying to say is this: if you don’t take some time to slow down once in a while(偶尔) and        your life, it will pass you by. You can be unhealthy both in body and mind if you don’t take the time to relax. So this weekend, don’t make any         . Just get up on Saturday morning           your body says it’s time to get up. Make some coffee, step outside and get         fresh morning air, turn on the radio and prepare yourself for nothing.
小题1:
A.goodB.fastC.slowD.cold
小题2:
A.speciallyB.seriouslyC.directlyD.quickly
小题3:
A.busyB.happyC.freeD.sad
小题4:
A.drinkB.buyC.writeD.say
小题5:
A.withB.exceptC.inD.on
小题6:
A.eatB.drinkC.takeD.get
小题7:
A.spendB.shareC.enjoyD.relax
小题8:
A.plansB.mistakesC.noises D.sentences
小题9:
A.butB.whenC.orD.so
小题10:
A.anyB.manyC.noD.some
单项选择题 案例分析题