共用题干 What is the Coolest Gas in the Universe?What is the coldest air temperature ever recorded on Earth?Where was this low temperature recorded ?The coldest recorded temperature on Earth was －91℃, which_____ (51) in Antarctica（南极洲） in 1983.We encounter an

题目
共用题干
What is the Coolest Gas in the Universe?

What is the coldest air temperature ever recorded on Earth?Where was this low temperature recorded ?
The coldest recorded temperature on Earth was －91℃, which_____ (51) in Antarctica（南极洲）
in 1983.
We encounter an interesting situation when we discuss temperatures in_________(52).Temperatures
in Earth orbit（轨道）actually range from about +120℃ to －120℃. The temperature depends upon
______(53)you are in direct sunlight or in shade.Obviously，－120℃ is colder than our body can
________ (54)endure.
The space temperatures just discussed affect only our area of the solar________(55).Obviously,it
is hotter closer to the Sun and colder as we travel__________(56)from the Sun,Scientigtg egtimate tern-
peratures at Pluto are about －210℃．How cold is the lowest estimated temperature in the entire universe?
Again,it depends upon your_________(57).We are taught it is supposedly__________(58)to have a
temperature below absolute zero,which is－273℃，at which atoms do not move.Two scientists,Cornell
and Wieman,have successfully______(59)down a gas to a temperature barely above absolute zero.
They won a Nobel Prize in Physics in 2001 for their work一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_______(60)about special light par-
tidles（微粒）we now call photons（光子）.Bose had trouble __________(61)other scientists to believe his
theory,so he contacted Albert Einstein. Einstein’s calculations helped him theorize that atoms_______(62)
behave as Bose thought一but only at very cold temperatures.
Scientists have also discovered that ultra-cold（超冷）atoms can help them make the world'S atomic
clocks even__________(63)accurate.These clocks are so accurate today they would oniy lose one second
_________ (64)six million years!Such accuracy will help us travel in space because digtanee is velocity
（速度）times time( d=vt).With the long distances involved in space _______(65),we need to know
time as accurately as possibie to get accurate distance.

_________(53)
A:whether
B:where
C:what
D:when
相似考题

1.It can be learned from the passage that about four billion years ago ______.A. the earth was in molten stateB. the earth surface temperature was above 100℃C. the earth surface temperature was below 100℃D. rain water could remain on the earth

2.—_______. —About 25℃.A.The temperature may be higher.B.How is the weather today?C.What’s the temperature today?D.What is the weather forecast say?

3.The cold and dry climate of Antarctica makes it one of the toughest places on Earth to live, and you can see that by contrasting what lives there with what lives in the Arctic.

4.According to the forecast the lowest recorded temperature was______.A. 51 degreesB. 65 degreesC. in the upper 60sD. in the mid to upper 70s

更多“共用题干 What is the Coolest Gas in the Universe?What is the coldest air temperature ever recorded on Earth?Where was this low temperature recorded ?The coldest recorded temperature on Earth was －91℃, which_____ (51) in Antarctica（南极洲） in 1983.We encounter an”相关问题

  • 第1题：

    Antarctica isn't only the coldest place on Earth, it's also one of the world's driest deserts.


    参考答案：南极洲不仅是地球上最冷的地方，它也是世界上最干燥的沙漠。

  • 第2题：

    High firing pressures and low exhaust temperature in a diesel engine may resultfrom( ).

    A.decreased piston to cylinder head clearance

    B.increased exhaust system back pressure

    C.early fuel injection timing

    D.low scavenge air temperature


    正确答案：C
    解析：decrease：减少;clearance：间隙
    译文：喷油定时过早会引起柴油机爆炸压力偏高、排温偏低。

  • 第3题：

    Sweat damage in a hatch full of canned goods in cartons will occur when the ______．

    A.Air temperature is higher than the temperature of the cargo

    B.Air temperature is lower than the temperature of the cargo

    C.Dew point is higher than the temperature of the cargo

    D.Dew point is lower than the temperature of the cargo


    正确答案：C

  • 第4题：

    共用题干
    The Cold Places

    The Arctic is a polar region.It surrounds the North Pole.
    Like Antarctica,the Arctic is a land of ice and snow. Antarctica holds the record for a low temperature reading一125 degrees Fahrenheit below zero.Reading of 85 degrees below zero is common in both the Arctic and Antarctica. Winter temperatures average 30 degrees below zero in the Arctic. At the South Pole the winter average is about 73 degrees below zero.
    One thing alone makes it almost impossible for men to live in Antarctica and in parts of the Arctic.This one thing is the low temperature一the killing chill of far North and the polar South.
    To survive,men must wear the warmest possible clothing. They must build windproof shelters. They must keep heaters going at all times.Not even for a moment can they be unprotected against the below-zero temperatures.
    Men have a way of providing for themselves.Polar explorers wrap themselves in warm coats and furs.The cold makes life difficult. But the explorers can stay alive.
    What about animals?Can they survive?Do we find plants?Do we find life in the Arctic and in Antarctica?Yes,we do.There is life in the oceans.There is life on land.
    Antarctica,as we have seen,is a cold place indeed.But this has not always been the case. Expedition scientists have discovered that Antarctica has not always been a frozen continent. At one time the weather in Antarctica may have much like our own.
    Explorers have discovered coal in Antarctica. This leads them to believe that Antarctica at one time was a land of swamps and forests.Heat and moisture must have kept the trees in the forests alive.

    The lowest temperature that man has ever known was recorded in Antarctica.
    A:Right
    B:Wrong
    C:Not mentioned

    答案：A
    解析：
    本题给出的信息是正确的。原文是："Antarctica holds the record for a low temperature reading-125 degrees Fahrenheit below zero."
    本题给出的信息是错误的。原文是："At the South Pole the winter average is about 73 degrees below zero."
    本题给出的信息是错误的。原文描述了探险家怎样通过保护自己在南极能够生存。
    本题给出的信息是错误的。原文是："They must build windproof shelters.They must keep heaters going at all times.Not even for a moment can they be unprotected against the below一zero temperatures."
    本题给出的信息是正确的。原文是：" Do we find life in the Arctic and in Antarctica?Yes,we do .There is life in the oceans .There is life on land."
    文章只是提到南极不是一直像今天这么寒冷，没有谈到北极在这方面的信，息。
    本题给出的信息是正确的。原文是：" Explorers have discovered coal in Antarctica.This leads them to believe that Antarctica at one time was a land of swamps and forests.Heat and moisture must have kept the trees in the forests alive."

  • 第5题：

    共用题干
    What is the Coolest Gas in the Universe?

    What is the coldest air temperature ever recorded on Earth?Where was this low temperature recorded ?
    The coldest recorded temperature on Earth was －91℃, which_____ (51) in Antarctica（南极洲）
    in 1983.
    We encounter an interesting situation when we discuss temperatures in_________(52).Temperatures
    in Earth orbit（轨道）actually range from about +120℃ to －120℃. The temperature depends upon
    ______(53)you are in direct sunlight or in shade.Obviously，－120℃ is colder than our body can
    ________ (54)endure.
    The space temperatures just discussed affect only our area of the solar________(55).Obviously,it
    is hotter closer to the Sun and colder as we travel__________(56)from the Sun,Scientigtg egtimate tern-
    peratures at Pluto are about －210℃．How cold is the lowest estimated temperature in the entire universe?
    Again,it depends upon your_________(57).We are taught it is supposedly__________(58)to have a
    temperature below absolute zero,which is－273℃，at which atoms do not move.Two scientists,Cornell
    and Wieman,have successfully______(59)down a gas to a temperature barely above absolute zero.
    They won a Nobel Prize in Physics in 2001 for their work一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_______(60)about special light par-
    tidles（微粒）we now call photons（光子）.Bose had trouble __________(61)other scientists to believe his
    theory,so he contacted Albert Einstein. Einstein’s calculations helped him theorize that atoms_______(62)
    behave as Bose thought一but only at very cold temperatures.
    Scientists have also discovered that ultra-cold（超冷）atoms can help them make the world'S atomic
    clocks even__________(63)accurate.These clocks are so accurate today they would oniy lose one second
    _________ (64)six million years!Such accuracy will help us travel in space because digtanee is velocity
    （速度）times time( d=vt).With the long distances involved in space _______(65),we need to know
    time as accurately as possibie to get accurate distance.

    _________(63)
    A:that
    B:such
    C:much
    D:more

    答案：D
    解析：
    最低温度这种现象只能发生（occur)，而不能是其他的行为；而且which在此句中作指 物的主语时，其谓语只能用不及物动词。
    由第三段的第一句话可知，此处填“space”与其对应。
    由后面的or可知选whether , whether...or…是固定搭配，意为“是······还是······“。
    身体只能为是否“安全地”承受，而不是“悲伤地’，、“重复地”、“自由地”承受。
    solar system是专有名词，意为“太阳系”。
    travel away是“远离”的意思，由句子中的比较关系可知，此处是指远离太阳。
    由前面的离太阳近，温度高，反之亦然，可知此处指你所处的位置不同，温度高低也不同。
    按常识来讲，在－273℃原子能动是不可能的。
    cool down是固定短语，意为“冷却”。
    由本段中第二句的“his theory”可知此处应填与之对应的“t1tneory” 。
    Bose只能是“使别人信服”他的理论，而不能“迫使”、“请求”、“命令”。
    would在此表示推测，意为“大概，会”。
    even more修饰accurate，表示更加精确。
    every＋时间段，表示“每······时间”。此外表示“每6百万年”。
    只有旅行（travel）才能与距离相关，所以此处的"space travel”指太空旅行。

  • 第6题：

    单选题
    Bad valves operation of the reciprocating air compressors can be detected by observation of （）.
    A

    the discharge temperature low

    B

    the discharge temperature high

    C

    the discharge pressure rise

    D

    the inter-stage pressure low


    正确答案： A
    解析： 暂无解析

  • 第7题：

    单选题
    Under normal conditions, the quantity of air circulation becomes less and less.What is the reason?（）
    A

    dirty delivery ducts

    B

    too much refrigerant

    C

    the fouling filters

    D

    high temperature outside


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    In terms of pressure and temperature in the refrigerant in the compressor, what happens to the primary?（）
    A

    its pressure and temperature are both lowered

    B

    its pressure and temperature are both raised

    C

    its pressure is lowered and its temperature is raised

    D

    its pressure is raised and its temperature is lowered


    正确答案： B
    解析： 暂无解析

  • 第9题：

    单选题
    On what do you depend having the air cooler of main engine chemically washed?（）
    A

    increased air pressure differenced before and aft air cooler

    B

    reduced exhaust temperature in all cylinders

    C

    reduced temperature difference between water inlet and outlet

    D

    both A and C


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
    A

    the temperature and flow quantity of the exhaust gas from M/E

    B

    the quantity of steam demanded

    C

    the rotary speed and the cooling water temperature of main engine

    D

    efficiency of M/ turbocharger


    正确答案： C
    解析： 暂无解析

  • 第11题：

    填空题
    What temperature is recommended for washing light colored clothes?____

    正确答案： warm temperature
    解析：
    从文章中间部分“warm temperature for light colored clothes”可知，此处应填warm temperature。

  • 第12题：

    单选题
    Which of the following is a TRUE statement?
    A

    Sound travels fastest through the hardest thing.

    B

    Sound travels at different speeds in different temperatures and in different media.

    C

    Sound travels fastest in hottest temperature.

    D

    Sound travels fastest in coldest temperature.


    正确答案： B
    解析：
    推断题。文章第四段第二句提到“It varies in other temperatures and in different media”，B项表述与之一致，为正确答案。选项A、C、D在文中都没有提及，因此排除。

  • 第13题：

    If the exhaust gas temperature of the incinerator is too high, or if sparks are developed, What should you do?

    A.Close the inlet and outletvalves for diesel oil

    B.Open the air nozzles in the secondary combustion chamber until it stops

    C.Open the air nozzles in the primary combustion chamber until it stops

    D.Close inlet valve for pressurized air


    答案：B

  • 第14题：

    Sweat damage will occur in a cargo hold containing machinery parts when ______.

    A.the outside air is colder than the cargo．

    B.the air temperature of the hold is higher than the outside air temperature．

    C.the dew point of the hold is higher than the temperature of the cargo．

    D.the dew point of the outside air is lower than the temperature of the cargo


    正确答案：C

  • 第15题：

    The（auto）ignition temperature is that temperature at which ______．

    A.No spark or flame is required to ignite gas or vapor

    B.A fuel begins to give off explosive vapors

    C.A fuel if ignited will continue to burn

    D.A 1% mixture of the fuel with air will explode


    正确答案：A

  • 第16题：

    共用题干
    The Cold Places
    The Arctic is a polar region.It surrounds the North Pole.
    Like Antarctica,the Arctic is a land of ice and snow.Antarctica holds the record for a low temperature reading-125 degrees
    Fahrenheit below zero. Reading of 85 degrees below zero is common in both the Arctic and Antarctica.Winter temperatures average 30 degrees below zero in the Arctic .At the South Pole the winter average is about 73 degrees below zero.
    One thing alone makes it almost impossible for men to live in Antarctica and in parts of the Arctic .This one thing is the low temperature-the killing chill of far North and the polar South.
    To survive,men must wear the warmest possible clothing. They must build windproof shelters .They must keep heaters going at all times.Not ever for a moment can they be unprotected against the below-zero temperatures.
    Men have a way of providing for themselves.Polar explorers wrap themselves in warm coats and furs .The cold makes life difficult. But the explorers can stay alive.
    What about animals?Can they survive?Do we find plants?Do we find life in the Arctic and in Antarctica?Yes,we do. There is life in the oceans.There is life on land.
    Antarctica,as we have seen,is a cold place indeed.But this has not always been the case.
    Expedition scientists have discovered that Antarctica has not always been a frozen continent. At one time the weather in Antarctica may have much like our own.
    Explorers have discovered coal in Antarctica. This leads them to believe that Antarctica at one time was a land of swamps and forests.Heat and moisture must have kept the trees in the forests alive.

    The lowest temperature that man has ever known was recorded in Antarctica.
    A:.Right
    B: Wrong
    C: Not mentioned

    答案：A
    解析：
    本题给出的信息是正确的。原文是：" Antarctica holds the record for a low temperature reading-1 25 degrees Fahrenheit below zero."


    本题给出的信息是错误的。原文是：" At the South Pole the winter average is about 73degrees below zero."


    本题给出的信息是错误的。原文描述了科学家怎样通过保护自己在南极能够生存。


    本题给出的信息是错误的。原文是：" They must build windproof shelters. They must keep heaters going at all times.Not even for a moment can they be unprotected against the below-zero temperatures."


    本题给出的信息是正确的。原文是：" Do we find life in the Arctic and in Antarctica? Yes,we do.There is life in the oceans.There is life on land."


    文章没有提及这方面的信息。


    本题给出的信息是正确的。原文是：" Explorers have discovered coal in Antarctica. This leads them to believe that Antarctica at one time was a land of swamps and forests.Heat and moisture must have kept the trees in the forests alive."

  • 第17题：

    共用题干
    What is the Coolest Gas in the Universe?

    What is the coldest air temperature ever recorded on Earth?Where was this low temperature recorded ?
    The coldest recorded temperature on Earth was －91℃, which_____ (51) in Antarctica（南极洲）
    in 1983.
    We encounter an interesting situation when we discuss temperatures in_________(52).Temperatures
    in Earth orbit（轨道）actually range from about +120℃ to －120℃. The temperature depends upon
    ______(53)you are in direct sunlight or in shade.Obviously，－120℃ is colder than our body can
    ________ (54)endure.
    The space temperatures just discussed affect only our area of the solar________(55).Obviously,it
    is hotter closer to the Sun and colder as we travel__________(56)from the Sun,Scientigtg egtimate tern-
    peratures at Pluto are about －210℃．How cold is the lowest estimated temperature in the entire universe?
    Again,it depends upon your_________(57).We are taught it is supposedly__________(58)to have a
    temperature below absolute zero,which is－273℃，at which atoms do not move.Two scientists,Cornell
    and Wieman,have successfully______(59)down a gas to a temperature barely above absolute zero.
    They won a Nobel Prize in Physics in 2001 for their work一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_______(60)about special light par-
    tidles（微粒）we now call photons（光子）.Bose had trouble __________(61)other scientists to believe his
    theory,so he contacted Albert Einstein. Einstein’s calculations helped him theorize that atoms_______(62)
    behave as Bose thought一but only at very cold temperatures.
    Scientists have also discovered that ultra-cold（超冷）atoms can help them make the world'S atomic
    clocks even__________(63)accurate.These clocks are so accurate today they would oniy lose one second
    _________ (64)six million years!Such accuracy will help us travel in space because digtanee is velocity
    （速度）times time( d=vt).With the long distances involved in space _______(65),we need to know
    time as accurately as possibie to get accurate distance.

    _________(51)
    A:operated
    B:occurred
    C:opened
    D:offered

    答案：B
    解析：
    最低温度这种现象只能发生（occur)，而不能是其他的行为；而且which在此句中作指 物的主语时，其谓语只能用不及物动词。
    由第三段的第一句话可知，此处填“space”与其对应。
    由后面的or可知选whether , whether...or…是固定搭配，意为“是······还是······“。
    身体只能为是否“安全地”承受，而不是“悲伤地’，、“重复地”、“自由地”承受。
    solar system是专有名词，意为“太阳系”。
    travel away是“远离”的意思，由句子中的比较关系可知，此处是指远离太阳。
    由前面的离太阳近，温度高，反之亦然，可知此处指你所处的位置不同，温度高低也不同。
    按常识来讲，在－273℃原子能动是不可能的。
    cool down是固定短语，意为“冷却”。
    由本段中第二句的“his theory”可知此处应填与之对应的“t1tneory” 。
    Bose只能是“使别人信服”他的理论，而不能“迫使”、“请求”、“命令”。
    would在此表示推测，意为“大概，会”。
    even more修饰accurate，表示更加精确。
    every＋时间段，表示“每······时间”。此外表示“每6百万年”。
    只有旅行（travel）才能与距离相关，所以此处的"space travel”指太空旅行。

  • 第18题：

    单选题
    Whether using a centrifuge or a simple filter, oil cleaning and filtration will be the most effective when the oil is at a （）.
    A

    high temperature and a high viscosity

    B

    high temperature and a low viscosity

    C

    low temperature and a high viscosity

    D

    low temperature and a low viscosity


    正确答案： B
    解析： 暂无解析

  • 第19题：

    单选题
    Low cylinder compression pressure and a high exhaust temperature may indicate （）
    A

    early fuel injection timing

    B

    leaking valves

    C

    a continuously open scavenge air port

    D

    low cooling water temperature


    正确答案： B
    解析： 暂无解析

  • 第20题：

    单选题
    The greater the pressure difference between a high and a low pressure center，the（）.
    A

    dryer the air mass will be

    B

    cooler the temperature will be

    C

    greater the force of the wind will be

    D

    warmer the temperature will be


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    Ambient temperature is the （）.
    A

    amount of temperature rise with no load

    B

    temperature of the compartment where the motor is located

    C

    normal operating temperature, less the room temperature

    D

    amount of temperature developed by an operating motor


    正确答案： D
    解析： 暂无解析

  • 第22题：

    单选题
    For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
    A

    the temperature and flow quantity of the exhaust gas from M.E

    B

    the quantity of steam demanded

    C

    the rotary speed and the cooling water temperature of main engine

    D

    efficiency of M.E turbocharger


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    Exhaust temperature increases in all cylinders, the possible cause may be（） (1) increased scavenging air temperature (2) air in fuel pumps and fuel valves (3) fouling of air and gas passages
    A

    (1)+(2)

    B

    (1)+(3)

    C

    (2)+(3)

    D

    (1)+(2)+(3)


    正确答案： B
    解析： 暂无解析

  • 第24题：

    单选题
    High firing pressures and a low exhaust temperature in a diesel engine may result from （）.
    A

    decreased piston to cylinder head clearance

    B

    increased exhaust system back pressure

    C

    early fuel injection timing

    D

    low scavenge air temperature


    正确答案： A
    解析： 暂无解析

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