聽力是六級考試中的重要題型，考生對這部分的復(fù)習(xí)一定不能松懈，考生可以充分利用暑期時(shí)間堅(jiān)持練習(xí)聽力，下面是一篇英語六級聽力練習(xí)，快來練練吧。

When NASA launched the Kepler Space Telescope in 2009, scientists learned something new - and quite significant, says the director of the Space Telescope Science Institute, Matt Mountain.

“Our galaxy has at least 100 billion planets in it.

And we didn't know that five years ago," said Mountain.

Of course, Kepler and today's other powerful telescopes cannot actually see those planets; they are too faint against the light of their stars.

But scientists can measure the change of light when they pass in front of the star and analyze the light passing through their atmosphere to determine what is in it.

“Well, if we were looking at Earth, we would see signs of our sky, our blue sky, we would see signs of oxygen, of carbon-dioxide, of sulfur dioxide from volcanoes and we might even see signatures that there was plant life," said NASA's astrophysicist and former astronaut John Grunsfeld. "And we see that by dissecting the light into its component colors."

Most of the planets discovered so far are unlike Earth. They are too big, too small, too close to their sun, or too far away to support life. But astrophysicist Sara Seager says small planets the size of Earth are extremely common.

“We're looking for biological signatures, gasses that are produced by life, gasses that don't belong in the atmosphere," said Seager.

In cooperation with the European Space Agency and scientists from other nations, NASA is building the next generation of space telescopes that may be able to find evidence of life.

The James Webb Space Telescope, scheduled to be deployed in 2018, will have unprecedented sensitivity and resolution that will greatly improve the spectroscopic analysis of distant stars and planets.

NASA’s chief scientist Ellen Stofan says the agency also plans to look for life on Jupiter’s moon Europa, which may have an ocean under its ice cover.

“In our own solar system we know where to go, we know what to measure it and we're in the process of doing just that. Looking out, beyond our solar system, we're on the right track, we're making the right measurements and we're just on the cusp of learning so much," said Stofan.

Scientists say there's a very high probability that they will find a planet very much like Earth. That could help answer the question: how hard is it for life to get a foothold in the universe?

全面掌握四六級考試信息，為備考復(fù)習(xí)做準(zhǔn)備！

什么人能考四六級：全日制?？?、本科、研究生在校生可報(bào)考四六級，其中英語四級考試成績達(dá)到425分以上（含425分）的在校大學(xué)生才可報(bào)考六級，同一考試批次，四級和六級不能兼報(bào)。點(diǎn)擊查看更多>>

四六級什么時(shí)候考：大學(xué)英語四六級考試每年舉辦兩次，分別是6月中下旬的周六和12月中下旬的周六，具體時(shí)間每年略有不同，需查看本校教務(wù)處報(bào)名通知了解。點(diǎn)擊查看最新考試時(shí)間>>

四六級在哪兒報(bào)名：英語四六級考試現(xiàn)在都由各學(xué)校組織報(bào)名，一般會通過學(xué)校的教務(wù)網(wǎng)站或者各學(xué)院集體報(bào)名，報(bào)名后還有信息確認(rèn)的過程，部分學(xué)校需要電子攝像。點(diǎn)擊查看更多>>

四六級報(bào)名費(fèi)要多少：四六級報(bào)名費(fèi)用由各院校在報(bào)名時(shí)收取，不同地區(qū)及院校收費(fèi)標(biāo)準(zhǔn)不同，一般在15-70元不等，部分院校不設(shè)立現(xiàn)場交費(fèi)，采取從校園卡或銀行卡統(tǒng)一劃扣方式收取。點(diǎn)擊查看更多>>

四六級考試流程是怎樣的：英語四六級是同一天考試，上午考四級，下午考六級。考場上先試音，然后進(jìn)行作文部分答題，之后是聽力部分考試，最后是剩余題型考試。點(diǎn)擊查看更多>>

四六級分?jǐn)?shù)怎么計(jì)算：大學(xué)英語四、六級考試的分?jǐn)?shù)報(bào)道采用常模參照方式，不設(shè)及格線。四六級考試單項(xiàng)成績有四個(gè)部分，這四個(gè)部分以及所占的分值比例為：聽力占35%，閱讀占35%，翻譯占15%，作文占15%。點(diǎn)擊查看更多>>

四六級考試改革了哪些：CET考委會宣布從2013年12月考次起對英語四六級考試題型改革。本次四六級考試改革取消了完形填空、快速閱讀，增加閱讀理解匹配題，復(fù)合式聽寫改為單詞和詞組聽寫，句子翻譯改為短文漢譯英。點(diǎn)擊了解更多>>

四六級成績什么時(shí)候出：四六級考試成績一般是考后兩個(gè)月左右公布，一般在成績查詢開始前10天左右，四六級考委會網(wǎng)站會公布成績查詢通知，告知大家確切的成績查詢開始時(shí)間及成績查詢方式。點(diǎn)擊了解更多>>

四六級多少分過：四六級報(bào)道成績滿分為710分，凡成績在220分以上的考生，發(fā)給成績單，不設(shè)官方及格線。但考委會規(guī)定“四級成績達(dá)到425分以上（含425分）者方可報(bào)考六級”，故一般認(rèn)為四級及格線是425分。點(diǎn)擊了解更多>>