Ｅｙｅ－ｉｎ－ｔｈｅ－Ｓｅａ

A team ofresearchersmadean 11-day expedition to the Bahamas, 2007. On the expedition, the researchers used a deep-diving submersible to drop off and pick up aspecialcamerasystemcalledthe Eye-in-the-Sea (EITS). Thesystemhas a video camera inside a water-proofcase. The camerasits ona metaltripodthatis about 6 feet tall. It films with red light, which most deep-sea animals can't see, so they don't get scared away.

One of the biggest advantages of EITS is that it allows researchers to see how deep-sea creatures communicate with one another — using a type of light called biolumi-nescence.

Bioluminescent creatures use chemicals to make their ownlight. Thoughonlyavery fewanimals, suchas fireflies, doit abovewater, mostanimalsin the ocean bioluminesce.

Scientists believe that sea creatures use this light for everything from scaring away predators to finding food in dark waters. EITS alsohasa gadgeton thefront that lights up to look just like bioluminescence.

Ontheexpedition, scientistsprogrammedthelight system to flash in different patterns. They were ecstatic to find that when the lure flashed in certain ways, some animals flashed back.

Thoseflashesshowedthatforthefirsttime, thescientists were actually "talking" to deep-sea creatures using light.

探海之眼

2007年，有一组研究人员到巴哈马群岛进行了11天的远征考察。在这次考察过程中，研究人员使用了一种能够潜得很深的深潜艇，把一套叫做“探海之眼”（EITS）的特制摄像设备投放到海里摄像后收回。这套设备拥有一个放在防水箱里的摄像机。这台摄像机安放在一个6英尺（1英尺=0.3048米）左右高的金属三脚架上。它利用多数深海动物看不见的红光进行摄像，这样就不至于把它们吓跑。

EITS最大的优点之一是它能使研究人员利用一种叫做生物发光的现象看到深海中的生物相互之间是怎样交流的。

具有发光能力的生物是利用化学物质发光的。尽管能够在水面以上发光的动物（如萤火虫）为数极少，然而在海洋中的大多数动物都会进行生物发光。

科学家认为，这种发光能力对海洋生物可以起到许多作用，从吓退捕食动物到在黑暗的水域里寻找食物。EITS的前部也有一个会发光的小器件，发出的光看上去就像生物发光一模一样。

在这次考察过程中，科学家们给这个发光设备编制的程序能使它发出各种不同形式的光。他们欣喜若狂地发现：当他们发出的引诱光以某些方式闪烁时，有些动物会回闪。

这些闪光表明，科学家们利用发光第一次真正与深海生物实现了“对话”。

（注意斜体词的译法）

BuriedMetal AffectsLondonCityAirport

Aircraftstakingoff fromLondon City Airport havehadtheircompasses affectedbyironandsteelburiedbelowtherunway, leadingto(1) s ___ navigation problems. The main culprit is recycled oil pipelines used as steel casing on concrete piles that underpin the holding area where (2) a_____ prepare for take-off, as well as buried railway lines and bollards, the Air Accidents Investigation Branch (AAIB) said.

The AAIB issued six safety recommendations, (A) i ______ that the steel casing be removed and pilots flying to/from London City Airport be routinely reminded inflight plansthere isa magneticanomaly which can affecttheir aircraft's instruments.

The movesfollowan AAIBinquiry intoan incidenton October 31, 2006 when a Raytheon Hawker 800XP experienced difficulties navigating after (B) t____ off from the airport and had to return. The incident was one in a series of navigation (3) p____ dating from January 2000 for aircraft leaving London City Airport. Some were attributed to pilot error at the time.

"A walk aroundtheRunway 28holdingareawithahand-held (4) m____ ompass by an AAIB inspector showed that there were some large and strong magneticanomaliesthatmadethecompass needle （5） d____ by upto±60 degrees." the AAIB said.

Scientists called in to the airport, which is on the site of old docks in east London, found major magnetic anomalies from the steel (C) c_____, and a lesser effect from old railway (6) l andcast iron bollardsthat wereusedtotie upships. These were covered over during (D) c____ of the airport.

(A, B, C, D FOR CROSS, 1, 2, 3，4,5,6 FOR DOWN. Thefirst lettersoftheabsents were given)

The Lamp Bulb Without Electricity

Xiao Wang was the preservation memberof chemical engineering factory, turning on duty in the evening for a day. Suddenly it had a power fail. All sides were utterdarkness, so Xiao Wang was very frightened. At this time the technician in the factory, Xiao Lee, went to take something infactory, seeing Xiao Wang, who didn'tknow howtodo. So he told him a method. Put into just the right amount of magnesium in a discard lamp bulb, then tilt to one side to put into the oil of vitriol. Keep the oil of vitriol and magnesium not to get in touch with each other while starting. Straightenthelamp bulb after covering tightly. Then Xiao Wang saw that it taken place vigorous of chemical reaction in the lampbulb atthis time. The lamp bulb sends out very dazzling ray of light, make the room get up bright again.

As all we know, the oil of vitriol has strong oxidizability, especially with some metals. The magnesium is aactivemetal. So iftheymeet together, they will take place violent chemical reaction.

Question:

1. Please write down the chemical reaction equation.

2. Why can the reaction send out dazzling ray of light?

上期Reading

Comprehension答案

1. D2. B 3. A