问题 选择题

读某山区等高线示意图,完成下列各题。

小题1:图中甲、乙两河的流量相当,向小镇引水线路最合理的是

A.①

B.②

C.③

D.④小题2:如果小镇通过上述线路引水,过度引用河水将导致

A.甲河流域水土流失加剧

B.甲河下游河段水量锐减

C.乙河下游河段的自净能力下降

D.乙河上游河段的流量季节变化增大

答案

小题1:D

小题1:C

本题考查区域等高线地形图的综合分析。

小题1:引水线需从高处引水,可自流,结合图示等高线的分布,河流流经则等高线应“凸高为低”故判断③④为高处引水,比较两条线路,④线更短。

小题2:若过度引水导致河流下游水量减少,则使乙河下游水量减少,自净能力下降。

阅读理解

阅读理解。

     Tom is the son of a farm owner. One New Year's Day, when he was 15, his father asked him to

work on the farm for one year when he was free. Tom was unhappy with his father's idea. "That isn't my

job,  I have too much schoolwork to do." Hearing this, his father said,"I promise (许诺) to give you the

best present if you can finish one year's work." Tom thought for a while and agreed.

     Starting one Saturday, the boy got up early and worked hard until evening, just like any other farmer.  

Time passed quickly. Tom's crops (庄稼) grew well. On the last day of the year, the father called his son

to him, "I'm happy to see that you have worked very hard in the whole year," said the father, "Now, tell

me what you want. "

     The boy smiled and showed his father a big piece of bread made from his wheat. "I've already got the

best present. No pains, no gains. I think this is what you wanted me to know." His father was quite

pleased to hear that.

1. Where did Tom's father work?

                                                                              

2. What did Tom's father want him to do when he was 15?

                                                                              

3. How did Tom work on the farm in the whole year?

                                                                              

4. Did Tom get the best present at last?

                                                                              

5. What do you think of Tom's father?

                                                                              

问答题 简答题