问题 单项选择题

在山西某煤矿区,有游人被邀请到井下参观。在矿灯照耀下,看见夹在页岩地层中的巨厚煤层乌黑发亮,仔细辨认还能看出苏铁、银杏等植物粗大的树干。

该地质时代地壳运动的特点是()。

A.出现了喜马拉雅造山运动

B.环太平洋地壳运动剧烈

C.火山活动频繁,地壳变质很深

D.地壳运动剧烈,许多地方反复上升、下沉

答案

参考答案:B

解析:

本题考查地理学知识。中生代中、晚期,各板块漂移加速,在具有缓冲带的洋、陆壳的接触带上缓冲、挤压,导致著名的环太平洋运动,我国大陆轮廓已基本形成,出现了爬行动物——恐龙和始祖鸟,同时裸子植物繁盛,形成了金属矿产和煤。题干中有煤和苏铁、银杏,苏铁和银杏属于裸子植物中的苏铁纲、银杏纲,明显可以看出是“环太平洋地壳运动剧烈”所造成的。

阅读理解

TYPING
This course(课程) is for those who want to learn to type, as well as those who want to improve their typing. The course is not common. You are tested in the first class and begin practicing at one of eight different skill levels(水平). This allows you to learn at your own speed. Each program lasts 20 hours. Bring your own paper.
Course fee(费用): $125        Materials: $25
Two hours each evening for two weeks. New classes begin every two weeks.
This course is taught by a number of professional business education teachers who have successfully taught typing courses before.
 
UNDERSTANDING COMPUTERS
This twelve - hour course is for people who do not know very much about computers, but who need to learn about them. You will learn what computers are, what they can and can't do and how to use them.
Course fee: $75  Jan. 4,7,11,14,18  Wed.& Sat. 9:00-11:30a. m. 
Equipment(设备) fee: $10
David is a professor of Computer Science at Beijing University. He has over twenty years of experience in the computer field.
 
STOP SMOKING
Do you want to stop smoking? Have you already tried to stop and failed? Now is the time to stop smoking using the latest methods(方法). You can stop smoking, and this twelve -hour course will help you do it.
Course fee: $30    Jan. 2,9,16,23     Mon. 2:00-5:00p. m.
Dr John is a practical therapist who has helped hundreds of people stop smoking.
小题1:If you choose the UNDERSTANDING COMPUTERS course, you will have classes_____.
A.from Monday to SundayB.from Monday to Friday
C.on Wednesday and SaturdayD.on Saturday and Sunday
小题2:How long will the STOP SMOKING course last?
A.for a dayB.for three hoursC.for a weekD.for four days
小题3:Mr. Black works every morning and evening, but he wants to take part in one course. What is suitable for him?
A.TYPINGB.UNDERSTANDING COMPUTERSC.STOP SMOKINGD.all courses
小题4:If you want to learn about computers and at the same time you want to improve your typing, how much will you pay for it?
A.$ 75B. $ 150C. $ 115D. $ 235
小题5: What’s the special difference between the TYPING course and the other two?
A.People with different skill levels may learn at different speed
B.You’ll pay less money
C.You will take a test after the course
D.You will pay the fee before practicing
判断题