问题 选择题

下列有关物质的性质的叙述中,正确的是(  )

A.纯铁是黑色、坚硬的固体

B.氧气可溶于水

C.常温下碳很难跟其他物质反应

D.水是没有味道的无色液体

答案

A、纯铁是银白色、质地较软的固体,故选项错误;

B、氧气在通常状况下不易溶于水,故选项错误;

C、碳的化学性质稳定,在常温下很难跟其他物质反应,故选项正确;

D、水在通常状况下是一种无颜色、无气味的液体,温度改变状态也会发生变化,故选项错误;

故选C.

阅读理解

阅读理解

       Indianapolis is the capital and largest city of Indiana, USA. With a population of 774, 000, it is one

of the largest cities in the world that can’t be reached by water. However Indianapolis is a city through

which many railways, roads, buses, and planes pass. There are many factories that make cars, farm tools, and electrical things. These factories cause little pollution for the city. Bulter University, well known for

engineering, and the law and medical schools and Indiana University are in the city center. Nearby is the

Indianapolis race course, where the nation's most famous car race is held every year on May 30th.

       If you visit Indianapolis, you will be able to find your way around easily because most of the streets

cross each other like a chessboard. In the center of the city, called the circle, stands the Soldier's and

Sailor's Monument, 100 meters high. Also in the center there are many buildings made of famous

Indianapolis stone, which makes them white in color.

1. You can't travel to Indianapolis by _____.

A. boat          

B. bike          

C. car          

D. train

2. What is Indianapolis best known for?

A. Its school and libraries.  

B. Its yearly motor race.

C. Its universities and medical schools.

D. Its Soldier's and Sailor's Monument.

3. It is easy for a stranger to go about in the city because ______.

A. most of the buildings are in the center of the city

B. there are many different ways of traveling there

C. the buildings are very close to each other

D. the city is planned in squares

4. Many buildings in Indianapolis are white because ______.

A. they are painted every year    

B. the Indiana people keep them clean

C. they are made of special stones

D. there is little pollution from factories

单项选择题