阅读理解. I 阅读理解. It seems to be strange to you there is a bl
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阅读理解. I
阅读理解. |
It seems to be strange to you there is a blind spot on the eyes.Here is an interesting experiment 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 eye. 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. |
1.The writer of the passage thinks that _____ there is a blind spot on the eye. |
A.few people know B.no one knows C.most people know D.all the people know |
2."a blind spot" in the passage means _____ in Chinese. |
A.污点 B.消散 C.盲点 D.遗失 |
3.You fail to see the letter L in the experiment because _____. |
A.your eyes are poor B.its image falls on the blind spot C.you move it close to your eye D.your left eye is not open |
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 card |
A.④⑥①②③⑤ B.①③⑥④⑤② C.⑥①④③②⑤ D.⑥④①③⑤② |
5.The passage mainly (主要) tells us _____. |
A.how to find the blind spot B.an interesting experiment C.where the blind spot is D.there is blind spot on the eye |
1-5 ACBDD
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