题目内容（请给出正确答案）

[单选题]

The water gives up energy and becomes cooler （） the ice receives energy and melts.

A.when

B.while

C.for

D.because

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更多“The water gives up energy and …”相关的问题

第1题

A withered plant might be rescued because ______.A．it doesn't get enough waterB．it is repe

A withered plant might be rescued because ______.

A．it doesn't get enough water

B．it is repeatedly overwatered

C．it gives visible signal of dying

D．it dies slowly

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第2题

The engine () smoke and steam.

A.gives up

B.gives in

C.gives off

D.gives away

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第3题

Water is ______ hydrogen and oxygen．A．made upB．made up ofC．made byD．making by

Water is ______ hydrogen and oxygen．

A．made up

B．made up of

C．made by

D．making by

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第4题

Chinese and Russian scientists have reposed that in places ______stress is building up, th

e radon levels of the water build up too.

A. what

B. that

C. which

D. where

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第5题

--- Shall we sit up here on the grass or down there near the water？ --- __________ .A.I’d

--- Shall we sit up here on the grass or down there near the water？ --- __________ .

A.I’d rather stay here if you don’t mind

B.Sorry, I don’t like neither

C.Certainly, why not？

D.Yes, we like these two places

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第6题

In the last paragraph, the writer gives the examples of logistical operations in order to

show that______.

A．a large retailer purchases products for resale

B．a consumer has to pick up or deliver products himself

C．logistics is important to an enterprise and needs continuous management

D．a large manufacturer has to deliver products to its customer

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第7题

The sentence“the water will be lost in it”can be considered as________．A.the water would

The sentence“the water will be lost in it”can be considered as________．

A.the water would be mixed up with the wine

B.the water couldnt：be found in the wine

C.the water would flow through the barrel into the ground

D.the water would be gone in the barrel

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第8题

This morning' our water supply was______because of the cold weather.A．let downB．cut offC．t

This morning' our water supply was______because of the cold weather.

A．let down

B．cut off

C．taken up

D．brought away

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第9题

It's good for local people to be well aware that tourism will ______.A．use up a large amou

It's good for local people to be well aware that tourism will ______.

A．use up a large amount of water

B．weaken their economy

C．help keep their customs

D．help improve their life

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第10题

The energy which the sun radiates goes in every direction, and only a minute part of it fa

lls on the earth. Even so, it represents power of about 5,000,000 horsepower (马力)per square mile per day; the sun gives us as much energy every minute as mankind utilizes in a year. At present, we use this energy in directly, and it is our final source of power. Coal represents the chemical action of the sun on green plants thousands of years ago. Water power results from the rain formed by vapor which comes from the evaporation of power. Coal represents the rain formed by vapor which comes from the evaporation of water under the sunshine. Even windmills operate because of air currents set in motion by the different heating affects of the sun in different places. Some day, through chemistry or some type of solar engine, we shall harness this great source of energy more directly. Already a scientist has worked out an engine, surprisingly efficient, in with the sun' s rays are concentrated through mirrors on a tube of water to create steam.

How much energy given off by the sun reaches the earth？

A．100 % but indirectly

B．5 %

C．0.5

D．only a very tiny amount

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第11题

Considered as a continuous body of fluid, the atmosphere is another kind of ocean. Yet, in

view of the total amount of rain and snow on land areas in the course of a year, one of the most amazing water facts is the very small amount of water in the atmosphere at any given time. The volume of the lower seven miles of the atmosphere--the realm of weather events- is roughly four times the volume of the world's oceans. But the atmosphere contains very little water. It is chiefly in the form. of invisible vapor, some of which is carried over land by air currents. If all vapor suddenly fell from the air onto the earth's surface, it would form. a layer only about one inch thick. A heavy rainstorm on a given area may use up only a small percentage of the water from the air mass that passes over. How, then, can some land areas receive more than 400 inches of rain per year？ How can several inches of rain fall during a single storm in a few minutes or hours？ The answer is that rain yielding air masses are in motion, and as the driving air mass moves on, new moist air takes its place.

The basic source of most water vapor is the ocean, evaporation, vapor transport, and precipitation (陈雨) make up the continuous movement of water from ocean to atmosphere to land and back to the sea. Rivers return water the sea. In an underground arc (弧) of the cycle, flowing bodies of water discharge some water directly into rivers and some directly to the sea.

What might have been discussed before this passage？

A．The ocean.

B．The earth.

C．The rainfall.

D．The atmosphere.

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