Question

It seems to be strange to you there is a blind spot(點(diǎn)) 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 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．a(chǎn)ll the people know

2.In which order 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

3.The passage mainly tells us _______.

A．how to find the blind spot                 B．a(chǎn)n interesting experiment

C．where the blind spot is                   D．there is blind spot on the eye

 

Answer 1

【答案】

 

1.A

2.D

3.D

【解析】

試題分析：這篇文章通過(guò)一個(gè)實(shí)驗(yàn)告訴我們，在我們的眼睛里有存在一個(gè)盲點(diǎn)，對(duì)于這個(gè)知識(shí)很少有人知道。

1.細(xì)節(jié)題。根據(jù)文章It seems to be strange to you there is a blind spot(點(diǎn)) on the eyes.可知，很少有人知道我們的眼睛有一個(gè)盲點(diǎn)。故選A

2.細(xì)節(jié)題。根據(jù)文章可知，我們做實(shí)驗(yàn)的順序應(yīng)該是：制作一個(gè)卡片，寫(xiě)上兩個(gè)英語(yǔ)字母，舉起卡片，閉上右眼，看字母R,移動(dòng)卡片離眼睛更近。故選D

3.主旨題。這篇文章通過(guò)一個(gè)實(shí)驗(yàn)告訴我們，在我們的眼睛里有一個(gè)盲點(diǎn)。故選D

考點(diǎn)：科普類(lèi)說(shuō)明文

點(diǎn)評(píng)：對(duì)于此類(lèi)科普類(lèi)說(shuō)明文，學(xué)生在答題時(shí)需要把握好答題的方法，首先對(duì)文章進(jìn)行整體的閱讀，初中的閱讀來(lái)說(shuō)不難，重在對(duì)單詞詞義的考察及其整個(gè)文章語(yǔ)言邏輯關(guān)系的判斷。所以在平時(shí)的學(xué)習(xí)中除了多去積累記憶單詞外，還需要適當(dāng)做題，保持良好的語(yǔ)感與閱讀的習(xí)慣。