问题 单项选择题

下图为岩石圈物质循环示意图,图中①~④四个箭头表示地质作用。下列岩石属于沉积岩的是()

A、石灰岩

B、大理岩

C、安山岩

D、花岗岩

答案

参考答案:A

解析:

石灰岩属于沉积岩,大理岩属于变质岩,安山岩和花岗岩属于岩浆岩,故选A。

【点评】岩石圈的范围  三大岩石分类  地壳物质循环。岩石圈的物质循环过程岩石与地壳物质循环:三大岩石与岩浆之间的相互转换,构成了地壳物质的循环过程。(1)岩浆岩:岩浆在上升过程中冷却、凝固而成,在地表以下形成侵入岩(如花岗岩);喷出地表后冷却凝固,叫喷出岩,又称火山岩(如玄武岩)。(2)沉积岩:岩石在外力作用下,经过风化、侵蚀、搬运、沉积和固结成岩作用形成,具有层理结构,一般含有化石。如石灰岩、页岩、砂岩、砾岩等,以及煤、石油、天然气等化石燃料。正常情况下,沉积岩层呈上新下老的关系。亦可根据所含化石确定时间先后顺序。物质构成和化石还可以反映当时的沉积环境,如煤层说明以前是湿润的森林,石灰岩层说明以前是温暖的浅海环境,等等。(3)变质岩:由其它岩石在高温、高压条件下发生变质作用形成。如石灰岩受热后成为大理岩,页岩受挤压形成板岩等。

选择题
阅读理解

When I was quite young, I discovered that somewhere inside the telephone lived an amazing

person - "Information Please" and there was nothing she did not know. 

One day while my mother was out, I hit my finger with a hammer. The pain was terrible, but

there was no one home to give me any sympathy. I walked around the house, finally arriving at the telephone! Quickly, I called “Information Please" and told her what happened.  She told me to open the icebox and hold a little piece of ice to my finger.

After that, I called "Information Please" for everything. When my pet bird died, I told

"Information Please" the sad story. She tried to comfort me, she said quietly, "Paul, always remember that there are other worlds to sing in." Somehow I felt better. Another day I was on the telephone, “How do you spell ‘grateful’? ". All this took place in a small town in the Pacific Northwest. When I was 9, we moved to Boston.

A few years later, on my way to college, my plane put down in Seattle. I had about half an

hour or so between planes. Without thinking, I dialed my hometown operator and said, "Information, please."      

Surprisingly, I heard the small, clear voice I knew so well, "Information." I hadn't planned on

this but I heard myself saying, "Could you please tell me how to spell ‘grateful’?"  

There was a long pause. Then came the soft-spoken answer, "I guess your finger must have

healed by now."   I laughed. "So it's really still you," I said, "I wonder if you have any idea how much you meant to me during that time."  I told her how often I had thought of her over the years and asked if I could call her again. "Please do," she said, "Just ask for Sally."  

Three months later I was back in Seattle. A different voice answered me. I was told that Sally

passed away five weeks before.     

Before I could hang up she told me that Sally left a message for me—“Tell him I still say

there are other worlds to sing in. He'll know what I mean.”  I thanked her and hung up. I knew what Sally meant.

Never underestimate the impression you may make on others. Whose life have you touched

today? 

59. What does “Information, Please” refer to in the passage?

A. An amazing girl.

B. A special kind of telephone.

C. A communication system.

D. A service that helps telephone users.

60. What happened to the little boy one day when he was at home alone? 

A. He was amused by the telephone.

B. He hurt his finger with a hammer.

C. He found an amazing telephone.

D. He got a piece of ice from an icebox.

61. What did “Information, Please” give the little boy whenever he was in trouble? 

A. Information and conversation.

B. Good memories and happiness.

C. Sympathy and information.

D. Friendship and cheers.

62. When did the author get in touch with “Information, Please” again after he moved to

Boston?  

A. When he was in trouble on his way to college.

B. When his plane stopped in Seattle for half an hour.

C. When he went back to Seattle to visit his sister.

D. Three months later after he moved to Boston.