7．Why Do People Blink Their Eyes？
People blink（眨眼）their eyes tens of thousands of times every day．Scientists have long believed blinking was an involuntary movement and served mainly to keep the eyeballs wet．But a new study suggests it has a more important purpose．
An international team of scientists from the University of California at Berkeley studied the blinking of human eyelids．The journal Current Biology published their findings．The team said they found that blinking"repositions our eyeballs so we can stay focused"on what we are seeing．They said that when we blink our eyelids，the eyes roll back into their sockets-the bony area that surrounds and protects the eyes．However，the researchers found the eyes don't always return to the same position．They said this causes the brain to tell the eye muscles to reorganize our eyesight．
Gerrit Maus is the lead writer of the report．He serves as an assistant professor of psychology at Nanyang Technological University in Singapore．Maus said，"Our eye muscles are quite sluggish（遲緩的）and imprecise，so the brain needs to constantly adapt its motor signals to make sure our eyes are pointing where they're supposed to．Our findings suggested that the brain measures the difference in what we see before and after a blink，and commands the eye muscles to make the needed corrections．"The researchers said that without such corrections our surroundings would appear unclear and even jumpy．They said the movement acts"like a steadicam（攝影穩(wěn)定器）of the mind．"
The researchers said they asked volunteers to sit in a dark room while staring at a small dot on a flat surface．They used special cameras to follow the volunteer's blinks and eye movements．After each blink，the dot was moved one centimeter to the right．The volunteers did not notice this，but the brain did．It followed the movement and directed the eye muscles to refocus on the dot．After the dot was moved in this way 30times，the volunteers'eyes changed their focus to the place where they predicted it would be．
Professor Maus said，"Even though participants did not consciously register that the dot had moved，their brains did，and adjusted with the corrective eye movements．These findings add to our understanding of how the brain constantly adapts to changes，commanding our eye muscles to correct for errors in our bodies'own hardware．"

63．According to the new study，blinking eyes canB．
A．serve to keep the eyeballs wet
B．reposition eyeballs to stay focused
C．consciously correct eye movements
D．make our eyes adapt to motor signals
64．From the experiment，we can learn thatD．
A．volunteers could see the moving dot with special cameras
B．the eyeballs could stay in the place as they were predicted
C．participants were aware of the dot's movements to the right
D．the brain commanded the eye muscles to refocus on the dot
65．The underlined word"register"in Paragraph 5 probably meansA．
A．realize         B．refocus         C．reserve         D．reason
66．This passage shows thatC．
A．eye muscles are quite inactive and imprecise
B．the research is of great value in the eye movement
C．the brain plays an important role in seeing things clearly
D．volunteers control their blinks to follow the changes of the dots．

分析 本文主要講述了科學(xué)家的研究成果：人們之所以眨眼睛是為了重新聚焦新的事物同時(shí)眨眼睛也可以起到保護(hù)眼睛的作用．

解答 63．B 細(xì)節(jié)題．根據(jù)文章內(nèi)容，The team said they found that blinking"repositions our eyeballs so we can stay focused"on what we are seeing．They said that when we blink our eyelids，the eyes roll back into their sockets-the bony area that surrounds and protects the eyes最新的研究表明，人們眨眼睛是為了讓我們更好的聚焦我們要看的事務(wù)．當(dāng)眨眼睛的時(shí)候，我們的眼球會轉(zhuǎn)動(dòng)會得到重置，那樣可以保護(hù)我們的眼鏡，結(jié)合選項(xiàng)，故選B
64．D 細(xì)節(jié)題．根據(jù)文章內(nèi)容，．However，the researchers found the eyes don't always return to the same position，They said this causes the brain to tell the eye muscles to reorganize our eyesight．研究表明，眼鏡不會回到同一個(gè)點(diǎn)，科學(xué)家說我們的大腦支配著眼睛的肌肉去重新聚焦新的點(diǎn)，結(jié)合選項(xiàng)，故選D
65．A 詞義猜測題．根據(jù)文章內(nèi)容，After the dot was moved in this way 30times，the volunteers'eyes changed their focus to the place where they predicted it would be…Even though participants did not consciously register that the dot had moved，their brains did，and adjusted with the corrective eye movements參加實(shí)驗(yàn)的人在提供的那個(gè)點(diǎn)移動(dòng)了30次以后，改變他們的視野點(diǎn)，盡管參加者們無意識的知道那個(gè)點(diǎn)的移動(dòng)，可是他們的大腦是意識到了的，并相應(yīng)的給眼睛傳遞信號，來讓眼睛重新尋找焦點(diǎn)，結(jié)合選項(xiàng)，故選A
66．C 推理題．根據(jù)文章內(nèi)容，These findings add to our understanding of how the brain constantly adapts to changes，commanding our eye muscles to correct for errors in our bodies'own hardware．"這些研究結(jié)果表明，我們的大腦在支配我們看事物方面起著非常重要的作用．結(jié)合選項(xiàng)，故選C

點(diǎn)評 本文是一個(gè)科教類閱讀理解，題目涉及多道細(xì)節(jié)理解題，做題時(shí)結(jié)合原文和題目有針對性的找出相關(guān)語句進(jìn)行仔細(xì)分析，結(jié)合選項(xiàng)選出正確答案．推理判斷題也是要在抓住關(guān)鍵句子的基礎(chǔ)上合理的分析才能得出正確答案，切忌胡亂猜測，一定要做到有理有據(jù)．

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