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    An inventor is a person who creates new inventions, typically technical devices such as mechanical, electrical or software devices or methods. Although some inventors may also be scientists, most of them are engineers in fact as they base their work on the discoveries of other scientists, experimenting with practical applications and combinations of those discoveries, and with improvements and combinations of existing devices, to create new useful devices. The system of patents was established to encourage inventors by granting limited-term monopoly on inventions that are judged sufficiently novel. This system is nowadays frequently considered as being abused, especially in the United States, and some have called for reform or even abolition of the patent system. In the U.S., however, the patent right originates from the Constitution, so inventors will likely continue to protect their inventions that way for many years to come. The capacity to invent can be developed. See TRIZ, the theory of inventive problem-solving. ican 【查看更多】

     

    题目列表(包括答案和解析)

    阅读下面短文，从各小题所给的四个选项中选出能回答所提问题或完成所给句子的最佳答案。

        When you are learning English, you must know a great man, William Shakespeare, the great English
    writer of drama(戏剧).He was' born in 1564 in Stratford-on-Avon. We do not know everytliing about
     Shakespeare's early life.  But we know that he was useful at the Grammar School in Stratford, and
    that he became interested in the theatre when he was still a boy.  In 1586, Shakespeare went to London,
    where he worked in a theatre for some years before he began to write his own plays. Shakespeare soon
    became well known in London. Every play he wrote was very glad and new to the people of the capital.
    Queen F:lizabeth liked Shakespeare's plays.  By the end of the 16th century, Shakespeare and his friends
    had enough money to build their own theatre. But we must think that Shakespeare couldn't have no
    difficulties in his life. Some writers were against him because their plays were worse than his.

    1. Shakespeare is_____in England.
    A. a scientist    
    B. an inventor    
    C. a play writer    
    D. a story writer
    2. The writer thinks______.  
    A. we don't know Shakespeare's boyhood at all
    B. we know Shakespeare's childhood a little
    C. we know Shakespeare's boyhood a lot
    D. we should know Shakespeare about his early life well
    3. Shakespeare worked in the theatre______.
    A. when he started to write his plays    
    B. after he left the Grammar School
    C. when he was twenty-two years old    
    D. after he liked the theatre very much
    4. Some writers were against Shakespeare because______. 
    A. they hated him    
    B.their plays were less farnous than his
    C. they wrote fewer plays than him    
    D.  their money was less than his
    5. Which of the following sentences is RIGHT? 
    A. Each play Shakespeare wrote was liked by Queen Elizabeth.
    B. Shakespeare and his friends built a theatre with their money at the age of thirty.
    C. Shakespeare had a happy time and no difficulties in his life.
    D. Shakespeare was very popular with the people in London.

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    阅读理解。
         William Shakespeare,the great English writer of drama (戏剧),was born in 1564 in
     Stratford-on-Avon.We do not know e verything about Shakespeare's early life.But we know
    that he is useful at the Grammar School in Stratford,and that he became interested in the theatre when
    he was still a boy. In l586, Shakespeare went to London,where he worked in a theatre for some years
    before he beganto write his own plays.Shakespeare soon became well known in London.Every play he
    wrote was very glad and new to the people of the capital.Queen Elizabeth liked Shakespeare's plays.
    By the end of the l6th century, Shakespeare and his friends had enough money to build their own theatre.
    But we must think that Shakespeare had no difficulties in his life.Some writers were against him because
    their plays were worse than his.
    1. Shakespeare is _______ in England.
    A. a scientist        
    B. an inventor      
    C. a play writer      
    D. a story writer
    2. The writer thinks ____________.
    A. we don't know Shakespeare's boyhood at all
    B. we know Shakespeare's childhood a little
    C. we know Shakespeare's boyhood a lot
    D. we should know Shakespeare about his early life well
    3. Shakespeare worked in the theatre ________.
    A. when he started to write his plays    
    B. after he left the Grammar School
    C. when he was twenty-two years old    
    D. after he liked the theatre very much
    4. Some writers were against Shakespeare because _____.
    A. they hated him                  
    B. their plays were less famous than his
    C. they wrote fewer plays than he    
    D. their money was less than his
    5. Which of the following sentences is right?
    A. Each play Shakespeare wrote was liked by Queen Elizabeth.
    B. Shakespeare and his friends built a theatre with their money at the age of thirty.
    C. Shakespeare had a happy time and no difficulties in his life.
    D. Shakespeare was very popular with the people in London.

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    —Simon is really creative, and he likes making new things.

    —Yes. To be __________ is his dream.

    A. a writer　　　　　　　　　　 B. an inventor　　　　　　　 C. a singer　　　　　　　　　 D. an actor

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    You may know the English letters A, B and C. But do you know there are people called ABC? You may like eating bananas. But do you know there is such a thing a “banana person”? How strange! Are these people from “another earth”? No, they are just Chinese people like you and me.
    ABC means American-born Chinese. An ABC is a Chinese, but was born in the United States. Sometimes, people call an ABC a “banana person”. A banana is yellow outside and white inside. So, when a person is a banana, he or she is white inside-thinking like a Westerner and yellow outside-looking like a Chinese.
    Do you know why? Usually, ABCs know little about China or the Chinese language. Some of them don’t speak Chinese. Also, they are not interested in Chinese politics.
    But if ABCs can not speak Chinese, can we still call them Chinese people? Yes, of course. They are Chinese. They are overseas Chinese. These people may be citizens (公民) of another country like the US, Canada or Singapore. But they have Chinese blood. Their parents, grandparents or even great-grandparents were from China. They all have black eyes and black hair. But they are not Chinese citizens. They are not people of the People’s Republic of China. For example, we all know the famous scientist, C.N.Yang(杨振宁). He got the Nobel Prize for Physics in 1957. Chinese people love him. But he is an American citizen.
    【小题1】“ABC” in this passage means “     ”.

    A．three English lettersB．a kind of banana
    C．Chinese born in AmericaD．Americans born in China
    【小题2】Chinese in Western countries are called “banana persons” because       .
    A．their bodies are white inside but yellow outside
    B．they think like Westerners but look like Chinese
    C．they were born in China but got to study in America
    D．they like to eat bananas
    【小题3】The underlined word “blood” may probably mean       .
    A．国籍B．血统C．爱心D．皮肤
    【小题4】This passage mainly talks about ______.
    A. different kind of bananas                B. the life story of C.N.Yang
    C. the Noble Prize                      D. overseas Chinese

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    Have you ever heard an echo of your voice?

    An echo is a reflected(反射)sound. Stand in a very large, empty hall with nothing on the walls. Then shout. The sounds you make will hit the walls and come back to you. The walls reflect the sounds. These reflected sounds are called “echoes”.

    We can use reflected sound to make sound travel farther. Hold a watch about fifty centimeters from your ear. You cannot hear it. The sound of the watch travels a short way in all directions. It does not travel as far as your ear. You can make it travel to your ear by using a roll of cardboard(纸板筒).

    Make the roll of cardboard about fifty centimeters long. Put one end over your ear and hold the watch at the other. Now you can hear the watch because the sound has not gone in all directions. It is reflected down the roll to your ear.

    A megaphone(喇叭筒)works in the same way. It makes sound travel farther. It reflects the sound into a beam which can travel a long way. In the ship, the sailor uses the megaphone to make his voice travel. Without the megaphone, his voice cannot travel far.

    We use reflected sound in many ways. We use it to measure the depth of the sea, for example. Among the animals, bats and whales use reflected sound to tell them where they are and what things are near them.

    1.What is called “echo”?

    A．Very loud voices.

    B．Very loud voices that are made by man.

    C．Very loud voices that are made by animals.

    D．The sound that is made by man or animals comes back from some place.

    2.We can hear our echoes if we     .

    A．shout in a small room

    B．shout in a large house full of things

    C．shout in narrow valleys(山谷)

    D．shout in the open air

    3.Which is the right order of hearing our echo in a very large, empty hall?

    a. We hear the reflected sound

    b. The sound returns to us

    c. The sound hits the walls

    d. We make a sound

    A．c, b, a, d          B．c, a, b, d           C．d, c, b, a           D．d, b, c, a

    4.From the text we learn that __________ .

    A．reflected sound is useful only to blind people

    B．people haven’t made use of reflected sound yet

    C．bats use reflected sound to fly and get food

    D．whales don’t use reflected sound as they live in the sea

    5.If you haven’t got a megaphone, ____ will help you to make your voice travel farther.

    A．a long piece of wood                     B．a roll of cardboard

    C．a thin thread                           D．a long piece of silk

     

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