Question

【題目】It seems to be strange to you that there is a blind spot (盲點(diǎn)) on the eyes. Here is an interesting experiment (實(shí)驗(yàn)) that can make something disappear (消失), 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, you can see the letter 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, you can’t see it. That is why either of the letters disappears.

【1】The writer of the passage thinks that ______________there is a blind spot on the eyes.

A. few people know B. no one knows

C. most people know D. all the people know

【2】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. your left eye is not open

D. you move it close to your eye

【3】In which order (順序) should you do the experiment?

①Hold /span>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

【4】The passage mainly (主要) tells us ______________.

A. the blind spot can move

B. an interesting experiment

C. where the blind spot is

D. there is a blind spot on the eyes

Answer 1

【答案】

【1】A

【2】B

【3】D

【4】D

【解析】

這篇短文主要介紹了人的眼睛上有個(gè)盲點(diǎn)。這件事很少有人知道。作者通過一個(gè)試驗(yàn)，證明了這一現(xiàn)象。

【1】A推理判斷題。根據(jù)短文第一段 It seems to be strange to you there is a blind spot on the eyes你眼睛上有一個(gè)盲點(diǎn)對(duì)于你來說這似乎是奇怪的，可知，很多人是不知道眼睛有盲點(diǎn)這件事。故選A。

【2】B細(xì)節(jié)理解題。根據(jù)第三段When the image(影像)of the letter falls on the blind spot，it won’t be seen描述，可知當(dāng)字母的影像落在盲點(diǎn)，就不能被看到。故選B。

【3】D歸納理解題。根據(jù)第二段描述的實(shí)驗(yàn)步驟，故選D。

【4】D歸納理解題。根據(jù)短文的主要內(nèi)容可知作者用過試驗(yàn)證明了盲點(diǎn)的存在，故選D。