问题 选择题

假定钢铁厂选址时只考虑运费,且运费仅与所运货物的重 量和运距成正比,图乙中c点与煤、铁产地和市场的距离相等。 据此完成1~2题。

1、1800年钢铁厂选址应接近以下四点中的[ ]

A、a

B、b

C、c

D、d

2、如果工厂选址在c点最合适,那么[ ]

A、所需煤的重量大于铁矿石的重量

B、所需铁矿石的重量大于煤的重量

C、所需煤铁的重量大于产品的重量

D、生产1吨的钢铁需1吨煤与1吨的铁矿石

答案

1、A

2、D

问答题
阅读理解

阅读理解。

     Modern inventions have speeded up people's lives amazingly. Motor-cars cover a hundred

miles in little more than an hour, aircraft cross the world a day, while computers operate at

lightning speed. Indeed, this love of speed seems never-ending. Every year motor-cars are

produced which go even faster and each new computer boasts (吹嘘) of saving precious

seconds in handling tasks.

     All this saves time, but at a price. When we lose or gain half a day in speeding across the

world in an airplane, our bodies tell us so. We get the uncomfortable feeling known as jet-lag;

our bodies feel that they have been left behind in another time zone. Again, spending too long at

computers results in painful wrists and fingers. Mobile phones also have their danger, according

to some scientists; too much use may transmit harmful radiation into our brains, a consequence

we do not like to think about.

     However, what do we do with the time we have saved? Certainly not relax, or so it seems.

We are so accustomed to constant activity that we find it difficult to sit and do nothing, or even

just one thing at a time. Perhaps the days are long gone when we might listen quietly to a story

on the radio, letting imaginations take us into another world.

     There was a time when some people's lives were devoted simply to the cultivation of the land

or the care of cattle. No multi-tasking there; their lives went on at a much gentler pace, and in a

familiar pattern. There is much that we might envy about a way of life like this. Yet before we

do so, we must think of the hard tasks our ancestors faced; they farmed with bare hands, often

lived close to hunger, and had to fashion tools from wood and stone. Modem machinery has

freed people from that primitive existence.

1. The new products become more and more time-saving because ______.

A. time is limited

B. the manufacturers boast a lot

C. the prices are increasingly high

D. our love on speed seems never-ending

2. What does "the days" in Paragraph 3 refer to?

A. Imaginary life.

B. Times of inventions.

C. Simple life in the past.

D. Time for constant activity.

3. What is the author's attitude towards the modern technology?

A. Critical.

B. Objective.

C. Optimistic.

D. Negative.

4. What does the passage mainly discuss?

A. The present and past times.

B. Machinery and human beings.

C. Imaginations and inventions.

D. Modern technology and its influence.