Millions years ago much of our earth was

题型:阅读理解

问题:

Millions years ago much of our earth was covered with blocks (块) of ice. These ice blocks were as tall as high buildings in modern cities. Most of the ice was in the northern (北方的)part of the world.

Then the ice blocks started to move south. Cold and rain came with the ice. Animals and people had to move.

At last, the ice began to melt (融化). After half a million years, most of it had melted. More than half of the earth became covered with water. The climate became much warmer. Things began to grow. The earth began to look the way it looks today.

小题1:Millions of years ago our earth was very _________________.

A.warm

B.hot

C.cool

D.cold小题2:What did animals and people try to do when the ice blocks moved south?

A.they tried to stop them moving.

B.They tried to melt them.

C.They tried to stay ahead of them.

D.They tried to move behind them.小题3:The melting ice maybe helped to form _____________.

A.mountains and valleys

B.the sun, the moon and the earth

C.cities and countries

D.seas, lakes and rivers小题4: The underlined word “climate” means _______________.

A.the freezing ice

B.the weather of the year

C.the moving of the ice blocks

D.a plant or an animal小题5: Which of these things maybe happened because the Ice Age ended?

a. Forests grew                     b. Food became harder to find

c. Fishing became easier              d. The temperature dropped.

A.a; b

B.b; d

C.c; d

D.a; c

考点:健康环保类阅读科教类阅读
题型:阅读理解

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最可能的诊断为()

A.晚期肝癌

B.肝硬化

C.细菌性肝脓肿

D.胆总管结石

E.肝炎

题型:阅读理解

树是结点的集合,它的根结点的数目是( )。

A.有且只有1个

B.1或多于1

C.0或1

D.至少有2个

题型:阅读理解

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A.我是个笨人,因为所有的聪明人都是近视眼,而我的视力那么好

B.所有的猪都有四条腿,但这种动物有八条腿,所以它不是猪

C.小陈十分高兴,所以小陈一定长得很胖;因为高兴的人都能长胖

D.所有的鸡都是尖嘴,这种总在树上呆着的鸟是尖嘴,因此它是鸡

题型:阅读理解

J.Martin认为结构化设计和分析来提高数据处理生产率的做法收效甚微,因为哪些因素影响其效果
Ⅰ.应用的微小变化,可能导致程序的系列变化
Ⅱ.数据格式的不一致,导致数据共享性差
Ⅲ.没用高级数据库语言,没有良好的数据库设计
Ⅳ.企业的应用程序中存在着许多重复的逻辑结构

A.Ⅰ和Ⅳ

B.全部

C.Ⅱ和Ⅲ

D.Ⅲ

题型:阅读理解

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