单选题______ is generally believed, there is no water on the moon.A AsB WhatC ThatD It

题目
单选题
______ is generally believed, there is no water on the moon.
A

As

B

What

C

That

D

It


相似考题

1.EThe need to feed a growing population is putting much pressure on the world’s supply of water. With 97% of the world’s water too salty to be drunk or used in agriculture, the worldwide supply of water needs careful management, especially in agriculture. Although the idea of a water shortage(短缺)seems strange to someone fortunate enough to live in a high rainfull country, many of the world’s agricultural industries experience constant water shortages.Although dams can be built to store water for agricultural use in dry areas and dry seaons, the costs of water redistribution(重新分配)are very high. Notonly is there the cost of the engineering itself, but there is also an environmental cost to be considered. Where valleys(山谷)are flooded to create dams, houses are lost and wildlife homes destroyed. Besides, water many flow easily through pipes to fields,but it cannot be transported from one side of the world to the other. Each country must therefore rely on the management of its own water to supply its farming requirements.This is particularly troubling ro countries with agricultural industries in areas dependent on irrigation(灌溉). In Texas, farmers’ overuse of irrigation water be resulted in a 25% redcution of the water stores. In the Central Valley area of south eastern USA, a huge water engineering project provided water for farming in dry vallege, but much of the water use has been poorly managed.Saudi Arabia’s attempts to grow wheat in desert areas have been the pumping of huge quantities of irrigation water from underground reserves. Because there is no rainfall in these areas, such reserves can only decrease, and it is believed that fifty years of pumping will see them run dry.72. From the first two paragraphs we learnt that _______.A.much of the world’s water is available for useB.people in high rainfll countries feel luckyC.the costs of water redistribution should be consideredD.water can be easily carried through pipes across the world

更多“______ is generally believed, there is no water on the moon.”相关问题
  • 第1题:

    _____, boys like footballs.

    A: Generally speaking

    B: General speaking

    C: Generally spoken

    D: Speaking generally


    参考答案:A

  • 第2题:

    Sophie went to see her uncle once in a blue moon.()

    A.very often

    B.unexpectedly

    C.very rarely

    D.once a month


    正确答案:C
    解析:本句参考译文:苏菲只是偶尔去看望她叔叔。【知识点来源:Unit 4】本题考查英语颜色词的联想意义。习语“once in a blue moon”寓意“频率极少”。

  • 第3题:

    Generally, the first action in extinguishing an LFG fire caused by escaping gas is to ______.

    A.sweep flames away with water spray

    B.shut off the leak

    C.use a chemical foam fire extinguisher

    D.call the local fire department


    正确答案:B
    一般来说,在灭因气体泄漏而引起的火灾中,首先要关闭泄漏处。

  • 第4题:

    Good anchorage may be obtained anywhere,generally mud and sand,in this water area Vessel may have______.

    A.good dragging ground

    B.good towing ground

    C.good holding ground

    D.good grabbing ground


    正确答案:C
    在这片水域好的锚地可以在任何地方找到,一般是泥沙底,船舶有好的抓力。

  • 第5题:

    单选题
    Supposing there is a water container. The taller the container, ______ at the bottom.
    A

    greater will the water pressure be

    B

    the water pressure will be greater

    C

    the greater the water pressure will be

    D

    greater the water pressure will be


    正确答案: C
    解析:
    假设这里有一个装水的容器,容器越高,容器底部所受的压强就越大。这里考查越…越…的英文表达方式,C项正确,即the more...the more....的形式。

  • 第6题:

    单选题
    We use () to distill fresh water from sea water.
    A

    engine

    B

    sea water pump

    C

    cylinder cooler

    D

    fresh water generator


    正确答案: C
    解析: 暂无解析

  • 第7题:

    单选题
    What generally occurs when the land is cooler than the nearby water? ()
    A

    A land breeze

    B

    A sea breeze

    C

    A norther

    D

    A prevailing westerly


    正确答案: A
    解析: 暂无解析

  • 第8题:

    单选题
    Supposing there is a water container. The taller the container, _____at the bottom.
    A

    greater will the water pressure be

    B

    the water pressure will be greater

    C

    the greater will be the water pressure

    D

    greater the water pressure will be


    正确答案: B
    解析:
    句意:假设这里有一个装水的容器,容器越高,容器底部所受的压强就越大。这里考查越…越…的英文表达方式,C项正确,即the more...the more....的形式。

  • 第9题:

    单选题
    Which one of the following is not generally recognized as one constitute of bilge water?()
    A

    Oil leaking from tanks inside engine room

    B

    Engine room cleaning water

    C

    Water leaking from the separator sludge tank

    D

    Sewage


    正确答案: A
    解析: 暂无解析

  • 第10题:

    单选题
    请阅读 Passage 1,完成第 21~25小题。Passage 1These days,many large city buildings are equipped with their own air-conditioning systems.These systems help keep the buildings cool,but they can also damage the environment.Since they use a lot of electricity,for instance,they contribute indirectly to global warming.In addition,the water that flows through the systems is often cooled using chemicals called chlorofluorocarbons,or CFCs,that are believed to damage the Earth's ozone layer.Recently,though,a system has been built in the city of Toronto,Canada,that cools buildings with little damage to the environment. In the traditional air-conditioning systems found in most large buildings,water is pumped through the building in a continuous cycle.The water is first cooled to a temperature of 4℃ in machines called chillers.It is then sent to individual units that cool the air in each room.As the water flows through the building,it gradually becomes warmer.Finally,it reaches the roof ,where it is left to cool down naturally in a water tower.After that it is returned to the chillers,where the cycle begins again.Toronto lies on the shore of Lake Ontario,one of North America's Great Lakes,and the new system makes use of cold water taken from about 80 meters below the surface of the lake.At this depth,the water in the lake remains at 4℃ all year round.This is exactly the temperature to which the water in air-conditioning systems is cooled.However,the water from the lake is not pumped directly into the air-conditioning systems.Instead,it is used to cool the water that is already inside the air-conditioning systems.After that,the lake water is added to the city's ordinary water supply.Enwave,the company that developed this deep-lake cooling system,says that it uses 75 percent less energy than traditional air conditioning.And since no CFCs are used,no damage can be caused to the ozone layer.Not every city is located next to a large lake,but experts believe that systems like the one being used in Toronto could be built elsewhere by using other natural sources of cold water.What happens in the end to the water from Lake Ontario?
    A

    It is used by the residents of Toronto.

    B

    It is returned to a place deep in the lake.

    C

    It is cooled down before being used again.

    D

    It is added to the water inside air-conditioning systems.


    正确答案: B
    解析:

  • 第11题:

    单选题
    _____ is generally believed, there is no water on the moon.
    A

    As

    B

    What

    C

    That

    D

    It


    正确答案: A
    解析:
    句意:正像大家相信的那样,月球上没有水。这里考查的是as引导的非限制性定语从句。As引导非限定性定语从句有以下几种情况:1)as指代的是整个主句内容。2)谓语为被动式时,常用as作主语。3)as引导的非限制性定语从句常有“如,似,正像”的含义。

  • 第12题:

    单选题
    The shoreline on charts generally represents the mean().
    A

    High water line

    B

    Low water line

    C

    Low water spring line

    D

    Tide level


    正确答案: A
    解析: 暂无解析

  • 第13题:

    The ancient Egyptians are supposed ___ rockets to the moon.

    A.to send

    B.to have sent

    C.to have been sending

    D.to be sending


    参考答案:B

  • 第14题:

    Believe it or not,the day when you can go to the moon is coming soon.You can go into space (11) space shuttle.It (12) about three days for the shuttle to go from the earth to the moon. The shuttle flies a long way to a space station. You can stay there for a short rest and then it will (13) you to the moon.

    Now you can jump out of the shuttle. But you mustn't take (14) your spacesuit,because it is very hot in the daytime and very cold at night on the moon. The moon is much smaller than the earth. Things are (15) 0n the moon than they are on the earth. You can jump high every time you take a step. You will find that it is never tiring to walk on the moon. You don't need to take an umbrella or a raincoat with you,(16) there is no rain on the moon You can hear (17) because there is no air on the moon. And there are no animals or(18) living things there.

    The moon moves more slowly than the earth,so one day on the moon is as long as two weeks on the earth and one night is just as long as two weeks on the earth. What could you do in (19 )long days and nights and in a silent world?' Now scientists are trying to make the (20) 0f the moon. But our earth is really a far better place to live,as long as we take good care of it,

    ( )11.

    A.on

    B.in

    C.by

    D.with


    正确答案:C
    11.C【解析】构成"by+交通工具”结构,by space shuttle意为“乘航天飞机”。

  • 第15题:

    Good anchorage may be obtained anywhere in this water area, the bottom being generally mud and sand, vessel may have ______.

    A.good getting ground

    B.good holding ground

    C.good grabbing ground

    D.good handling ground


    正确答案:B
    好锚地可以在这水域的任何地方获得,底质通常是泥和沙,船舶可以拥有好的锚地底质。

  • 第16题:

    Some marvelous artists ( ) the beneficial effect for people by beautiful objects.

    A. believed in
    B. who believed in
    C. believed that
    D. in who believed

    答案:A
    解析:
    考查词汇辨析。分析句子的组成结构可知题干中缺少谓语,所以排除BD选项。A选项短语可以直接接宾语,C选项后接的是从句,根据题干可知填写的空格后并非完整句子,排除掉C选项。所以选项A正确。

  • 第17题:

    单选题
    The vacuum maintained in the salt water feed heater shell of a flash-type evaporator is generally accomplished by ().
    A

    a separate air ejector unit

    B

    a direct unimpeded connection between second stage and salt water feed heater

    C

    either by vacuum drag or an external line from the first stage via a fixed orifice

    D

    the fixed orifice provided in the steam supply line


    正确答案: D
    解析: 暂无解析

  • 第18题:

    单选题
    Why the cooling water of the diesel engine should be treated? Because the()
    A

    Cooling water is alkalescence

    B

    cooling water is acidity

    C

    cooling water has salinity

    D

    cooling water has impurity


    正确答案: B
    解析: 暂无解析

  • 第19题:

    单选题
    请阅读 Passage 1,完成第 21~25小题。Passage 1These days,many large city buildings are equipped with their own air-conditioning systems.These systems help keep the buildings cool,but they can also damage the environment.Since they use a lot of electricity,for instance,they contribute indirectly to global warming.In addition,the water that flows through the systems is often cooled using chemicals called chlorofluorocarbons,or CFCs,that are believed to damage the Earth's ozone layer.Recently,though,a system has been built in the city of Toronto,Canada,that cools buildings with little damage to the environment. In the traditional air-conditioning systems found in most large buildings,water is pumped through the building in a continuous cycle.The water is first cooled to a temperature of 4℃ in machines called chillers.It is then sent to individual units that cool the air in each room.As the water flows through the building,it gradually becomes warmer.Finally,it reaches the roof ,where it is left to cool down naturally in a water tower.After that it is returned to the chillers,where the cycle begins again.Toronto lies on the shore of Lake Ontario,one of North America's Great Lakes,and the new system makes use of cold water taken from about 80 meters below the surface of the lake.At this depth,the water in the lake remains at 4℃ all year round.This is exactly the temperature to which the water in air-conditioning systems is cooled.However,the water from the lake is not pumped directly into the air-conditioning systems.Instead,it is used to cool the water that is already inside the air-conditioning systems.After that,the lake water is added to the city's ordinary water supply.Enwave,the company that developed this deep-lake cooling system,says that it uses 75 percent less energy than traditional air conditioning.And since no CFCs are used,no damage can be caused to the ozone layer.Not every city is located next to a large lake,but experts believe that systems like the one being used in Toronto could be built elsewhere by using other natural sources of cold water.What is the function of the chillers in a traditional air-conditioning system?
    A

    They pump the air continuously to the units in each room.

    B

    They lower the temperature of the water in the system.

    C

    They help the water cool down naturally on the roof .

    D

    They gradually clean the water as it flows through the building.


    正确答案: A
    解析:

  • 第20题:

    单选题
    Generally, the first action in extinguishing an LFG fire caused by escaping gas is to().
    A

    sweep flames away with water spray

    B

    shut off the leak

    C

    use a chemical foam fire extinguisher

    D

    call t e local fire department


    正确答案: B
    解析: 暂无解析

  • 第21题:

    单选题
    In a diesel engine jacket water cooler, with seawater cooling the fresh water, the()
    A

    sea water temperature must never be warmer than 40℃

    B

    jacket water pressure should always be greater than the sea water pressure

    C

    jacket water temperature must always be less than 60℃

    D

    jacket water pressure must always be less than the sea water pressure


    正确答案: C
    解析: 暂无解析

  • 第22题:

    单选题
    Those generally used additives for cooling water are either anti-corrosion oils or inorganic().
    A

    gases

    B

    paints

    C

    inhibitors

    D

    detergent


    正确答案: B
    解析: 暂无解析

  • 第23题:

    单选题
    请阅读 Passage 1,完成第 21~25小题。Passage 1These days,many large city buildings are equipped with their own air-conditioning systems.These systems help keep the buildings cool,but they can also damage the environment.Since they use a lot of electricity,for instance,they contribute indirectly to global warming.In addition,the water that flows through the systems is often cooled using chemicals called chlorofluorocarbons,or CFCs,that are believed to damage the Earth's ozone layer.Recently,though,a system has been built in the city of Toronto,Canada,that cools buildings with little damage to the environment. In the traditional air-conditioning systems found in most large buildings,water is pumped through the building in a continuous cycle.The water is first cooled to a temperature of 4℃ in machines called chillers.It is then sent to individual units that cool the air in each room.As the water flows through the building,it gradually becomes warmer.Finally,it reaches the roof ,where it is left to cool down naturally in a water tower.After that it is returned to the chillers,where the cycle begins again.Toronto lies on the shore of Lake Ontario,one of North America's Great Lakes,and the new system makes use of cold water taken from about 80 meters below the surface of the lake.At this depth,the water in the lake remains at 4℃ all year round.This is exactly the temperature to which the water in air-conditioning systems is cooled.However,the water from the lake is not pumped directly into the air-conditioning systems.Instead,it is used to cool the water that is already inside the air-conditioning systems.After that,the lake water is added to the city's ordinary water supply.Enwave,the company that developed this deep-lake cooling system,says that it uses 75 percent less energy than traditional air conditioning.And since no CFCs are used,no damage can be caused to the ozone layer.Not every city is located next to a large lake,but experts believe that systems like the one being used in Toronto could be built elsewhere by using other natural sources of cold water.Which of the following is true?
    A

    Enwave's system is said to work only in cities located near the Great Lakes.

    B

    The water deep in Lake Ontario always remains at the same temperature.

    C

    Experts warn that the use of CFCs in Enwave' s system will add to global warming.

    D

    Toronto is now searching for new natural sources of water to use in its water supply.


    正确答案: C
    解析:

  • 第24题:

    单选题
    Generally,the first action in extinguishing an LFG fire caused by escaping gas is to().
    A

    sweep flames away with water spray

    B

    shut off the leak

    C

    use a chemical foam fire extinguisher

    D

    call the local fire department


    正确答案: D
    解析: 暂无解析