職稱英語《理工A》完形填空專項試題

1、職稱英語理工A完形填空專項試題完形填空題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

2、 temperatures in_ (2).Temperatures in Earth orbit actually range from about +120C to -120C. The temperature depends upon _(3) you are in direct sunlight or shade. Obviously, -1200C is colder than our body can safely endure. Thank NASA science for well-designed space _(4) that protect astronauts from

3、 these temperature extremes.The space temperatures just discussed affect only our area 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 -210C. How cold is the lowest estimated temperature in th

4、e entire universe? Again, it depends upon your _(6). We are taught it is supposedly_ (7) to have a temperature below absolute zero, which is-273C, 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

5、. They won a Nobel Prize in Physics in 2001 for their work - not a discovery, in this case.Why is the two scientists work so important to science?In the 1920s, Satyendra Nath Bose was studying an interesting_(9) about particles we now call photons. Bose had trouble_(10) other scientists to believe_(

6、11)he contacted Albert Einstein. Einsteins 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 worlds atomic clocks even more accurate. These clocks are so accurate today they would on

7、ly lose one second_ (14) six million years! Such accuracy will help us travel in space because distance is velocity times time (d-vxt). With the long distances involved in space _(15) to know time as accurately as possible to get accurate distance.1.A. openedB. occurredC. opposedD. operated2.A. Eart

8、hB. spaceC. planetD. star3.A. whetherB. whereC. whatD. when4.A. foodsB. bedsC. toolsD. suits5.A. windB. energyC. systemD. rays6.A. educationB. statusC. knowledgeD. location7.A. reasonableB. wonderfulC. impossibleD. necessary8.A. aboveB. belowC. withinD. beyond9.A. inventionB. theoryC. paperD. experi

9、ment10. A. convincingB. beggingC. orderingD. forcing11. A. andB. thoughC. butD. so12. A. willB. wouldC. mustD. can13. A. ultra-smallB. ultra-fastC. ultra-hotD. ultra-cold14. A. anyB. eachC. everyD. some15. A. travelB. researchC. walkD. station參考答案1.B。本段敘述地球上記錄到的最低溫度是-91，本段最后一句的后半句顯然是交代這一最低溫度是在南極洲出現(xiàn)的

10、。所以，occurred(發(fā)生，出現(xiàn))是正確的選擇。其他三個選項的詞義與上下文意思相去甚遠(yuǎn)。2.B。通觀本段，內(nèi)容是敘述宇宙空間的溫度。選項B的space是“宇宙空間”的意思，所以是答案。其他三個選項earth意為“地球”，planet意為“行星”，star意為“恒星”，這三個答案選項在詞義上都不合適。3.A。上下文的意思是：地球軌道上的溫度是介乎+120至-120之間。溫度的變化取決于是向陽還是背陽。whether意為“是否”，故為本題答案。4.D。上文說-120是宇航員無法忍受的溫度，下文說美國國家航空航天局生產(chǎn)某種裝置來protect astronauts from these temp

11、erature extremes(保護(hù)宇航員不受極端溫度的侵害)。很明顯，這種裝置就是space suits，意為“太空服”。5.c?，F(xiàn)在討論的內(nèi)容是有關(guān)太陽系宇宙空間的溫度。本段第二句說到太陽對溫度的影響：靠近太陽的溫度高一些，遠(yuǎn)離太陽的溫度就低一些。所以本題要選system。6.D。整個宇宙空間的溫度是多少度呢?溫度的高低取決于哪個因素呢?從四個選項分析：溫度不會取決于你的education(教育)，你的status(地位)或你的knowledge(知識)，因為這不合乎邏輯。只有選location(位置)才符合上下文的意思。7.C?？茖W(xué)常識告訴我們，絕對零度是宇宙中的最低溫度。故impos

12、sible為答案。8.A。本段前面的句子說到最低溫度不會低于.273，所以，below，within，beyond都有悖于上述論述。只有above(高于)才與上文的意思相符。9.B。本段第二句說，Bose沒有辦法使其他的科學(xué)家believe his theory，所以第一句的studying an interestin9之后缺失的詞應(yīng)該是“theory”。10.A。Bose一籌莫展，只好求助于愛因斯坦，后者通過計算證實了Bose的理論。本題選convincing(說服)最恰當(dāng)。0rdering(命令)或forcing(強迫)都不合邏輯。begging(懇求)也太低三下四了，也不符合語境。1 1

13、.D。本段的第二句的前半句與后半句是因果關(guān)系，連詞要選so。12.B。本句的主句中的謂語動詞用的是過去時helped，根據(jù)“主句為過去時態(tài)，賓語從句一般也要用過去時態(tài)”這個時態(tài)一致的原則，故本題要選would。13.D。Comell and Wieman榮獲諾貝爾物理獎，是因為他們成功地將氣體的溫度降到接近絕對零度。本文最后兩段以實際例子說明他們的成就推動了科學(xué)的發(fā)展。因此，ultra。small, ultra-fast和ultra.hot都與Cornell and Wieman的研究無關(guān)聯(lián)，不會是答案。只有ultra-cold才是合乎邏輯的選項。1 4.C。從句子“These clocks are SO accurate today they would only lose one