页岩气是从页岩层中开采出来的天然气，是一种重要的非常规天然气资源，它往往以吸附或游离状态分布在古盆地内厚度较大、分布广的页岩烃源岩地层中，储量初步估计是天然气储量的4倍。读“各钻井某页岩层顶部高程分布图”，图中所示构造地貌最有可能是（）
A、向斜山
B、向斜谷
C、背斜山
D、断块山
参考答案：A
解析：
从图中等高线分布来看（从四周向中间数值越来越大，外围为500，向中间550），可以判断此地形为山地。由页岩层顶部高程来看（从四周向中间越来越小，说明岩层中间向下弯曲）可知此地地质构造为向斜。故此地地貌为向斜山。故选A。
【点评】地质构造地质作用
请阅读下列应用文及相关信息，并按照要求匹配信息。 首先，请阅读以下有关招聘教师的信息：
小题1:Born in a rich family, Guo Jia is a spoiled beautiful girl, who never thinks about money. She speaks English very well and she likes nothing but traveling. She has to find a job as a teacher because her mother asked her to. So she wants to find a job that doesn’t take her too much time. 小题2:Wang Hao, a boy from a big family of four children, is a teacher of science. He has been teaching in his hometown for four years. But he is not satisfied with the salary, so he wants to find a better job. He wants to earn as much money as possible no matter how hard the work is. 小题3:Zhou Ming is a man of great responsibility. He is a trainer of much experience as he has taught in many training centers these years. But they do not offer him any housing. So he decided to find a new place where he can get a room for him to live in. 小题4:Liu Ke is a science teacher, who works in a town in Guangdong. He has been reading all kinds of books for these three years to enlarge his knowledge. In his opinion, Beijing is the best choice for working because it is the political and cultural center of China. 小题5:He Yong is an oral teacher who teaches in his hometown. Having been teaching in Shenzhen for many years, his best friend and classmate told him the salary in Shenzhen is high. So he wants to have a try. As he has to go back home very often, he wants as many holidays as possible. And it will be better if the school can pay the airfare. |