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    Scientists (科学家) think that many animals cannot see colours. The world is black and white to them. Scientists want to find out if (是否) dogs can see colours. When the scientists give the dogs food, they show them a certain colour every time. The dogs get ready to eat when they see this colour. The scientists then show the dogs another colour. Again the dogs get ready to eat. The colours are all the same to them.
    Colours are not all the same to monkeys. For example, if we put food in a red box, and do this every day, a monkey will always go to the red box to get food. If we put food in a blue box, the monkey won’t go to it.
    小题1:Scientists show the dogs colours ____________.
    A．to tell them to eat
    B．to find out if they can see black and white things
    C．for fun
    D．to find out if they can see colours
    小题2:The dogs get ready to eat when they ____________.
    A．hear different pieces of musicB．see the monkeys
    C．see black thingsD．see all the colours
    小题3:Colours are _____________.
    A．all the same to monkeysB．not all the same to dogs
    C．different to dogsD．not all the same to monkeys
    小题4:If we put food in a blue box and do this every day, a monkey will always go to ____________.
    A．the red box to get foodB．the blue box and put food in it
    C．the blue box to get foodD．the red box and put food in it
    小题5:Which of the following is TRUE?
    A．Scientists find that dogs don’t like colours.
    B．Dogs like to hear different pieces of music.
    C．Monkeys like the food in the box.
    D．Monkeys will not go to the blue box if we don’t show them before.

    小题1:D
    小题2:D
    小题3:D
    小题4:C
    小题5:D  

    小题1:细节理解题，根据文中语句“Scientists want to find out if (是否) dogs can see colours. When the scientists give the dogs food, they show them a certain colour every time.”理解可知。
    小题2:细节理解题，根据文中语句“The dogs get ready to eat when they see this colour. The scientists then show the dogs another colour. Again the dogs get ready to eat. The colours are all the same to them.”理解可知。
    小题3:细节理解题，根据文中语句“Colours are not all the same to monkeys.”理解可知。
    小题4:细节理解题，根据文中语句“if we put food in a red box, and do this every day, a monkey will always go to the red box to get food.”理解可知。
    小题5:细节理解题，根据文中语句“For example, if we put food in a red box, and do this every day, a monkey will always go to the red box to get food. If we put food in a blue box, the monkey won’t go to it.
    ”理解可知。
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