Imagine this：a television screen has the size and thickness of a piece of paper．You carry it around in your pocket and take it out when you want to watch a show．Imagine a guitar so tiny that you can’t see it with the human eye，but you can hear sound when its strings are pulled．

Nanotechnology(纳米技术) is the science that deals with doing things in a very small way, and it is being studied and developed all over the world ．Many scientists say nanotechnology will produce the next industrial revolution(工业革命) ．

Perhaps nanotechnology will have the biggest influence on medical science．Imagine nanobots(纳米机器人)in medicine．Thousands or even millions of tiny machines can be sent into the human body with specific tasks．For example, they can be designed to find and destroy cancer cells or viruses(病毒) ．Other machines may stay in the human body for ever to help organs(器官) that are not working properly．

When could all of these happen? Scientists predict that most of these are possible in the next 30 years．Thousands of scientists around the world are working on these micro-machines ．Nanotechnology is just around the corner．

1．The two examples in Paragraph 1 are used to _______．

    A．introduce the smallest television

    B．introduce a new kind of guitar

    C．introduce the topic of the passage

    D．show how small the world is

2．Nanotechnology_________．

    A．will cause an industrial revolution

    B．deals with things in old ways

    C．has studied the whole world

    D．was developed many years ago

3．The underlined world“they”in the third paragraph refers to(指代)“________”．

    A．scientists      B．human bodies         C．specific tasks       D．tiny machines

4．The tiny machines __________．

    A．are too small to be repaired

    B．call be put in a human body to kill viruses

    C．may not work well in a human body

    D．can take the place of human organs

5．The underlined phrase“around the corner”in the last sentence mans“________”．

    A．far away       B．at present      C．in the near future          D．impossible

One of the most remarkable things about the human mind is our ability to imagine the future. In our minds we can see what has not yet happened. For example, while we are looking forward to 1._____a new place or country, we 2._____what it will be like. We predict( 预料) the habit people will eat, dress and act. Of course, we do not always predict things 3._____. Things are often very different from the way we 4._____them to be.
One of the 5._____ dreams in history is the dream of the German scientist, Kekule, who had been 6._____ to work out a very difficult problem in physics. He had studied and analyzed(分析) the problem from every angle(角度) for days, but there 7._____ to be no way of 8._____ out the answer. Then one night he went to bed and dreamed. When he 9._____ up, he realized that he knew the answer. He had solved the problem in his 10._____.
The hypnotist(催眠者) sat in the chair opposite him and spoke 11._____: I want you to concentrate on my voice. Think about 12._____. You know nothing but my voice. And as you pay attention to my voice, your 13._____ will get heavier. Soon you’ll be asleep.
You will hear my voice and understand my words, but your body will be asleep, your eyes are too heavy. You are almost asleep, and when you wake up you will 14._____ nothing.
You will forget everything. Now I am going to 15._____ slowly from one to five. One, two, three, four, five.

One of the most remarkable things about the human mind is our ability to imagine the future. In our minds we can see what has not yet happened. For example, while we are looking forward to 1._____a new place or country, we 2._____what it will be like. We predict( 预料) the habit people will eat, dress and act. Of course, we do not always predict things 3._____. Things are often very different from the way we 4._____them to be.

One of the 5._____ dreams in history is the dream of the German scientist, Kekule, who had been 6._____ to work out a very difficult problem in physics. He had studied and analyzed(分析) the problem from every angle(角度) for days, but there 7._____ to be no way of 8._____ out the answer. Then one night he went to bed and dreamed. When he 9._____ up, he realized that he knew the answer. He had solved the problem in his 10._____.

The hypnotist(催眠者) sat in the chair opposite him and spoke 11._____: I want you to concentrate on my voice. Think about 12._____. You know nothing but my voice. And as you pay attention to my voice, your 13._____ will get heavier. Soon you’ll be asleep.

You will hear my voice and understand my words, but your body will be asleep, your eyes are too heavy. You are almost asleep, and when you wake up you will 14._____ nothing.

You will forget everything. Now I am going to 15._____ slowly from one to five. One, two, three, four, five.

1.                A．visiting         B．seeking         C．reaching  D．discovering

2.                A．imagine        B．know           C．feel  D．guess

3.                A．quickly         B．simply          C．correctly  D．neatly

4.                A．required        B．wished         C．left  D．expected

5.                A．funny          B．dull            C．famous   D．silly

6.                A．managing       B．trying          C．thinking  D．hoping

7.                A．used           B．ought          C．seemed  D．had

8.                A．making         B．finding         C．turning   D．letting

9.                A．gave           B．sat             C．woke D．got

10.               A．dream         B．lesson          C．research  D．exercise

11.               A．softly          B．loudly          C．slowly D．firmly

12.               A．everything      B．something      C．nothing   D．anything

13.               A．eyes           B．feet           C．head D．body

14.               A．accept         B．remember      C．hear  D．receive

15.               A．count          B．say            C．add  D．speak