问题 单项选择题

下列岩石都有可能找到化石的一组是()

A.页岩、石灰岩

B.砾岩、大理岩

C.砂岩、玄武岩

D.石英岩、花岗岩

答案

参考答案:A

解析:

岩石按照其成因可分为沉积岩、岩浆岩、变质岩三大类,化石是存留在沉积岩中的古生物遗体或遗迹,它只能存在于沉积岩之中,不可能存在于岩浆岩和变质岩之内。题目中所说的大理岩是石灰岩变质而成的变质岩。玄武岩是岩浆喷出形成的喷出岩,花岗岩属于岩浆侵入形成的侵入岩,都属于岩浆岩。故大理岩、玄武岩、花岗岩中不可能有化石的存在,故排除选项BCD。页岩、石灰岩都属于沉积岩,其中有可能找到化石

考点:三大岩石的形成

点评:本题的关键是要求考生熟悉三大岩石的形成及其特点,了解常见的岩石的所属类别及其形成,试题属于一般性的中档题目

阅读理解

India is a developing country. It has thousands of years of tradition and culture. Different types of people live in India. In the old days the educational institutions (教育机构) were called "ashramam" and teachers were "gurus". A guru was a respected person in society.

     Now we are living in the technological world. Big changes are occurring in people’s living. The influence of television, telephone, radio, computer, Internet and mobile phones is very strong in everyday life. But even today, teachers are role models for students. Teaching is still a respectable job. But there are great changes in the education system.

     One of the most obvious changes is that the influence of Western culture has increased. We are paying too much attention to doing business, just like the Western world. Teachers are likely to be influenced by this too, but it is not good. Teachers are nation builders. The development of any country depends upon its education system. All types of development are possible through education.

     Another change has happened in the curriculum. The curriculum connects the teacher and the student. While education is about learning, curriculum means the situations in which one learns. When we say that education deals with "what", then curriculum deals with "how" and "when". But at the moment, it is hard to say whether the curriculum is playing such a role.

小题1:In India, an ashramam was _________.

A.a teacher who was respected by people

B.a person who worked for the government

C.a place where students were taught

D.a place where tradition and culture developed小题2:Which of the following is NOT a reason to change people’s lives in India?

A.TV.

B.Computer.

C.Mobile phones.

D.Tradition.小题3:In modern society, teaching is considered as a job that __________.

A.is respected

B.brings good luck

C.is hopeless

D.connects with the fashion小题4:What is the author’s attitude towards educational change in India?

A.He likes it.

B.He is annoyed at it.

C.He is indifferent (冷漠的)to it.

D.He is worried about it.

单项选择题