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2011職稱英語考前每日一練[理工類C級-第53期]

2011-02-14 09:19 來源:正保會計網(wǎng)校 打印 | 收藏 |
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  第6部分:完形填空(第51~55題,每題1分,共15分)

  下面的短文有15處空白,請根據(jù)短文內(nèi)容為每處空白確定一個最佳選項。

What Is the Coolest Gas in the Universe?

  What is the coldest air temperature ever recorded on the Earth? Where was this low temperature recorded? The coldest recorded temperature on Earth was -91℃ which   1   in Antarctica in 1983.

  We encounter an interesting situation when we discuss temperatures in   2  . Temperatures in Earth orbit actually range from about +120℃ to -120℃.The temperature depends upon   3   you are in direct sunlight or shade.Obviously, -l20℃ is colder than our body can safely endure.Thank NASA science for well-designed space   4   that protect astronauts from these temperature extremes.

  The space temperatures just discussed affect only Our areal of the solar   5  .Obviously,it is hotter closer to the Sun and colder as we travel away from the Sun.Astronomers estimate temperatures at Pluto are about -210℃.How cold is the lowest estimated temperature in the entire universe? Again,it depends upon your   6  .We are taught it is supposedly   7   to have a temperature below absolute zero,which is-273℃,at which atoms do not move.Two scientists,whose names are Cornell and Wieman,have successfully cooled down a gas temperature barely   8   absolute zero.They won a Nobel Prize in Physics in 2001 for their work-not a discovery,in this case2.

  Why is the two scientists' work so important to science?

  In the l920s,Satyendra Nath Bose was studying an interesting   9   about particles we now call photons.Bose had trouble   10   other scientists to believe   11   he contacted Albert Einstein.Einstein's calculations helped him theorize   12   behave as Bose thought——but only at very cold temperatures.Scientists have also discovered that   13   atoms can help them make the world's atomic clocks even more accurate.These clocks are so accurate today they would only lose3 0ne second   14   six million years! Such accuracy will help us travel in space because distance is velocity times time4 (d=v×t).With5 the long distances involved in space   15   to know time as accurately as possible to get accurate distance.

  1.A opened B occurred C opposed D operated

  2.A Earth B space C planet D star

  3.A whether B where C what D when

  4.A foods B beds C tools D suits

  5.A wind B energy C system D rays

  6.A education B status C knowledge D location

  7. A reasonable B wonderful C impossible D necessary

  8.A above B below C within D beyond

  9.A invention B theory C paper D experiment

  10.A convincing B begging C ordering D forcing

  11.A and B though C but D so

  12.A will B would C must D can

  13.A ultra-small B ultra-fast C ultra-hot D ultra-cold

  14.A any B each C every D some

  15.A travel B research C walk D station

  同時按下Crtl鍵和A鍵查看答案

  1.B   2.B   3.A   4.D   5.C
  6.D   7.C   8.A   9.B   10.A
  11.D   12.B   13.D   14.C   15.A

我要糾錯】 責(zé)任編輯:夢小晨
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學(xué)員:chuhero 感謝周涵老師,職稱英語過了。我覺得應(yīng)該在這里跟老師說聲謝謝,老師的講課很實用,針對性強,是很有學(xué)習(xí)價值的課程,如果你想通過職稱英語考試,就聽周老師的課程吧。

學(xué)員:王仁芝 我去年7月開始差不多從零學(xué)起,堅持到考試,考了72分,十分感謝老師及網(wǎng)校的輔導(dǎo)!

學(xué)員:lilizhangx 職稱英語通過了!畢業(yè)10年了,沒怎么接觸英語,跟著周涵老師學(xué)習(xí),一次通過!

學(xué)員:張洪杰 首先感謝周涵老師,好多年沒有學(xué)習(xí)了,經(jīng)過老師的講解順利過關(guān),這已經(jīng)出乎我的預(yù)料,真的很激動,終于沒讓老師們失望,通過了,很高興。

學(xué)員:xsqxxlxzj 十多年沒有學(xué)習(xí)過英語了,通過職業(yè)培訓(xùn)教育網(wǎng)3個多月的學(xué)習(xí),83分通過職稱英語綜合C級考試,非常感謝周涵老師,謝謝您!

學(xué)員:best888zhou 畢業(yè)以后就沒有翻過英語了,丟了有七年了,雖然以前基礎(chǔ)還不錯,但這次真的是沒有信心,過年后開始復(fù)習(xí),用了差不多一個月的時間,B級綜合考了80分,很開心,謝謝周涵老師的細(xì)致講解!

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