科技英语短文

来源：考试大【考试大：最给力的教育考试网站】 2007年12月15日[16] "I learned from my experience with romance on the Net that people aren't always what they seem. The guy I met, for example, was very nice but also quite mixed up. The trouble is you get lonely housewives talking to someone and they think, 'This guy sounds nice compared to what I've got.'"[17] But I don't think anyone who is married or in a sound relationship should really be spending hours talking to someone else and ignoring their nearest and dearest. While Parker provided her own therapy by putting her experiences down on paper, she recommends others take up the online counselling offer, or log off from the Worldwide Web gradually.[18] "It's like smoking. It's not a good idea to suddenly go cold turkey. People often e-mail me about the problem and I tell them to gradually wean themselves off and not to switch to a scheme where you pay per hour for online time. If they break their resolution, all they end up with then is the same old problem plus money difficulties for the long hours they have spent logged in to the Internet."[19] Computer whizz Steve Phillips grins at the mention of Internet Addiction Disorder(IAD)--he's been there, done that. Now 28, and a seven-year veteran on the Internet, he spends a mere 10 to 15 hours ' for entertainment" on the Web each week, A few years ago, when he was in the grip of his addiction, that was the amount of time--10 to 15 hours--he spent online each day.[20] "I'd go to polytechnic and log on at 9 a.m. and sometimes I'd stay online until 9 at night. Then I'd go home and plug in the laptop and stay online until 4 or 5 a.m.," says the Internet systems maintenance ex-pert.[16]“我的网上罗曼史让我明白了，人们并不总像他们表现出来的那样。

例如，我曾认识一个网友，他很不错，但也很迷糊。

让人伤脑筋的是，当你介绍那些寂寞的家庭主妇与某人聊天时，她们会想：‘与我的那位比起来，这家伙听起来不错。

’”[17]可我认为，对于已婚的人或者拥有一份良好关系的人来说，实在不应该把大量的时间耗在与别人聊天上，而把自己至爱至亲的人冷落在一旁。

帕克通过把自己的经历写成文章提供了她自己的治疗方法，她劝告别人要接受网上咨询服务，或者逐渐地远离万维网。

[18]“就像抽烟上瘾一样，一下子戒掉烟瘾是难以让人接受的。

人们常常给我发电子邮件谈及此事，我就告诉他们要慢慢地戒掉网瘾，不要进入付费网站。

如果他们不听告诫，到头来不但旧病难除，而且还要面临长时间上网带来的经济困难。

”[19]计算机能手史迪夫·菲利普笑着提及沉迷网络症（IAD）——他一直在网上呆着，干的就是那个。

他今年28岁，是一个有7年网龄的老手，现在他每周只上网“玩”10-15小时。

几年前，他上网成瘾，难以自拔，每天在网上耗费的时间就达10－－15小时。

[20]“我上午9点去理工专科学校上网，有时在网上呆到晚上9点。

回家以后又在便携式电脑上继续玩，直到凌晨四五点钟。

”这位因特网系统维护专家说。

来源:考试大-经典译文考试责编:zhaopeng 评论纠错Discovery of PenicillinOn Alexander Fleming's desk were some small plates with germs (细菌). One evening, he forgot to cover one of the plates.When he arrived the next morning, he found a spot of green mold (霉菌) in one plate. This is not strange because the room was very damp(潮湿). But Fleming didn't throw out the spoiled,because something unusual caught his attention. On the uncovered plate, near the green mold, he found no g erms. That meant the mold had killed the germs there.Fleming began to study the mold. It grew and gr ew. Then he noticedvery small drops of liquid on the surface of the mold. Maybe this was the chemical that was killing the germs.Fleming drew off the liquid with a absorbent tube (吸管), drop by drop.He put this liquid in a clean test tube (试管). When he put the liquid in another test tube with germs, it killed the germs in that tube. He called the liquid penicillin (青霉素).Arctic MeltEarth's North and South Poles are famous for being cold and icy. Last year, however, the amount of ice in the Arctic Ocean fell to a record low1. Normally, ice builds in Arctic waters around the North Pole each winter and shrinks during thesummer. But for many years, the amount of ice left by the end of summer has been declining.Since 1979, each decade has seen an 11.4 percent drop in end-of-summer ice cover2. Between 1981 and 2000, ice in the Arctic lost 22 percent of its thickness -- becoming 1.13 meters thinner. Last summer, Arctic sea ice reached its skimpiest levels yet. By the end of summer 2007, the ice had shrunk to cover just 4.2 million square kilometers. That's 38 percent less area than the average cover at that time of year. Andit's a very large 23 percent below the previous record low, which was set just 2 years ago. This continuing trend has scientists concerned There may be several reasons for the ice melt, says Jinlun Zhang, an oceanographer at the University of Washington3 in Seattle. Unusually strong winds blew through the Arctic last summer. The winds pushed much of the ice out of the central Arctic, leaving a large area of thin ice and open water4. Scientists also suspect that fewer clouds cover the Arctic now than in the past. Clearer skiesallow more sunlight to reach the ocean. The extra heat warms both the water and the atmosphere. In parts of the Arctic Ocean last year, surface temperatures were 3.5℃Celsius warmer than average and 1.5℃ warmer than the previous record high5.With both air and water getting warmer, the ice is melting from both above and below. In some parts of the Beaufort Sea6, north of Alaska and western Canada, ice that measured3.3m thick at the beginning of the summer measured just 50 centimeters by season's end. The new measurements suggest that melting is far more severe than scientists have seen by just looking at ice cover from above, says Donald K. Perovich, a geophysicist at the U. S. Army Cold Regions Research and Engineering Laboratory in Hanover, N.H.7Some scientists fear that the Arctic is stuck in a warming trend from which it may never recover. 练习：1. Which of the following is closest in meaning to the word "build" in the first sentence of the second paragraph?Caught in the Web of the Internet沉湎因特网IN THIS ARTICLE: Getting hooked on the Internet isn't confined to a few computer nerd s. It's on the rise everywhere--and women are the most likely addicts. Ingrid Parker, once a slave to Internet chatrooms, found her experiences so devastating that she wrote a boo k to help other addicts break the habit. --Editor本文简介：沉醉于因特网而难以自拔的人已不再局限于少数计算机迷了。