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PETS2考試閱讀文章精選段落賞析
導(dǎo)語：多賞析閱讀試題的段落，對提高閱讀能力也有一定的作用哦。下面是YJBYS小編精選的三個段落，歡迎大家賞析。
一
If it were possible, however, it would present some pretty knotty paradoxes…… For example, what if someone or something traveled back in time and changed the ensuing future? And have you heard the one about the time traveler who dots back and forward in time and by means of various medical technologies is able to be his own father AND mother?! And besides, if time travel is possible, where are all the people from the future——surely they'd want to come and meet us poor stranded 21st century beings?
然而，如果這一切成為可能的話，那么將會出現(xiàn)一些非常令人困惑的邏輯混亂……比如，如果某人或某物逆時間旅行并改變隨之發(fā)生的.情況，那會發(fā)生什么情況呢?又比如說，你是否曾聽說過這樣的事情——一位時間旅行者在時間隧道中穿梭往返，利用各種醫(yī)學(xué)技術(shù)使自己成為自己的父親和母親?還有，如果時間旅行成為可能，未來的所有人都會在哪里呢?他們肯定想來見見我們這些滯留在21世紀(jì)的可憐人。
二
In 1971, after Einstein's death, two scientists were able to carry out a crucial experiment. They used two atomic clocks, synchronized them, and placed one on a plane, while the other stayed in the same location on Earth. The plane then flew around the world for 80 hours. According to Einstein's theory, the clock on the plane would be expected to have lost time, due to being in motion over 80 hours compared to the clock on the ground. When they brought the clocks together and made a comparison, the clock on the plane was indeed a few nanoseconds slower than the other clock.
愛因斯坦去世后，1971年，兩名科學(xué)家完成了一項(xiàng)重要實(shí)驗(yàn)。他們使用兩個原子鐘，將時間調(diào)成一致。其中一個被放在飛機(jī)上，而另一個則置于地球上的.原來地方。隨后飛機(jī)環(huán)繞全球飛行了80個小時。按照愛因斯坦理論，相對于地面上的時鐘，飛機(jī)上的時鐘會因?yàn)?0個小時的運(yùn)動而減少時間。當(dāng)他們將兩個時鐘拿到一起比較時，飛機(jī)上的時鐘確實(shí)較另一只慢了幾毫微秒。
三
Many science-fictional ideas from the past have subsequently became scientific realities. Take space exploration, for example. In the 1950s this was just a fantastical idea that few people would have dreamt could actually happen. Now it's such a part of modern life that the latest blastoff of a spacecraft, or the discovery of a new planet often doesn't even make the national news.
以前科學(xué)小說中提出的很多想法已經(jīng)變成了科學(xué)的現(xiàn)實(shí)。拿太空探險來說，50年代，這只不過是一種科學(xué)狂想，很少人相信有一天會變成現(xiàn)實(shí)。可是現(xiàn)在它已成為現(xiàn)代生活的一個組成部分，以至于一次最新的`宇航器發(fā)射或者一個新行星的發(fā)現(xiàn)已不再列為國內(nèi)新聞。
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