It seems to be strange to you that there is a blind spot (盲点)on the eyes. Here is an interesting experiment (实验) that can make something disappear, when one eye is open.
Make a card about the size of a postcard and write two English letters L and R on it, L on the left and R on the right. First, hold the card about 80 cm away and you see both the letters. Then close your right eye and look at the letter R only with your left eye. And now, as you move the card slowly towards you, you’ll find the letter L disappearing. But if you move the card nearer to your face, the letter will be seen again. Now do the same experiment with your left eye closed, you’ll find the letter R disappearing.
Why does the letter disappear? It is because there is a blind spot on the eyes. When the image (影像) of the letter falls on the blind spot, it won’t be seen. That is why either of the letters disappears.
【小题1】The writer of the passage thinks that there is a blind spot on the eyes.A．few people knowB．no one knowsC．most people knowD．all the people know【小题2】The word “disappear” in the passage means in Chinese.A．出现B．远离C．消失D．靠近【小题3】You fail to see the letter L in the experiment because .A．your eyes are poorB．its image falls on the blind spotC．your left eye is not openD．you move it close to your eye【小题4】In which order (顺序) should you do the experiment?
①Hold the card
②Move the card nearer
③Close your right eye
④Write two English letters
⑤Look at the letter R
⑥Make a cardA．④⑥①②③⑤B．①③⑥④⑤②C．⑥①④③②⑤D．⑥④①③⑤②【小题5】The passage mainly (主要) tells us .A．the blind spot can moveB．an interesting experimentC．where the blind spot isD．there is a blind spot on the eyesA
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(答案→)A
解析：
【小题1】根据第一段It seems to be strange to you that there is a blind spot (盲点)on the eyes.描述，可知很少有人知道眼睛上劝盲点。故选A。
【小题2】联系下文描述，可知此处指的是让某物消失，故选C。
【小题3】根据最后一段When the image (影像) of the letter falls on the blind spot, it won’t be seen.描述，可知选B。
【小题4】根据短文第二段描述，可知选D。
【小题5】这篇短文主要告诉了我们在我们的眼睛上有一个盲点，故选D。