公共英語(yǔ)PETS二級(jí)閱讀復(fù)習(xí)(5)

　　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(shuō)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(xiǎn)來(lái)說(shuō)，50年代，這只不過(guò)是一種科學(xué)狂想，很少人相信有一天會(huì)變成現(xiàn)實(shí)�？墒乾F(xiàn)在它已成為現(xiàn)代生活的一個(gè)組成部分，以至于一次最新的宇航器發(fā)射或者一個(gè)新行星的發(fā)現(xiàn)已不再列為國(guó)內(nèi)新聞。

　　公共英語(yǔ)PETS二級(jí)閱讀復(fù)習(xí)(6)

　　You cannot change the laws of physics ... but could physics actually enable us to travel through time? It might sound crazy, but according to Einstein's theories, there's no logical reason why time travel isn't possible and there are now scientists looking into it as a serious scientific proposal, at least at a theoretical level.

　　你無(wú)法改變物理學(xué)定律……但是物理學(xué)能否使我們?cè)跁r(shí)間中旅行呢?這聽(tīng)上去或許像個(gè)癡想。但是根據(jù)愛(ài)因斯坦的理論，時(shí)間旅行在邏輯上不是不可能的�，F(xiàn)在科學(xué)家正把它視為一個(gè)嚴(yán)肅的科學(xué)命題，至少在理論上如此。