题目内容
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When water freezes, it becomes larger instead of (small) ______ in amount of space.
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更多“When water freezes, it becomes…”相关的问题
_____, water turns into ice.
A、When freezing
B、When frozen
C、When it has been frozen
D、When freezes to it
A.below, above
B.under, over
C.above, below
D.below, over
A、One Stab thinks Susannah is a girl who is under a spell.
B、One Stab thinks Susannah is as cold as ice.
C、One Stab thinks Susannah’s heart is dead as frozen water when Samuel dies.
D、One Stab thinks although she is not to be blamed, Susannah is the reason to separate the brothers.
Water freeze at zero centigrade; the usual kind of antifreeze will not freeze until the temperature is 40℃ below zero. A mixture of five parts of water and four parts of antifreezes will prevent freezing at 18℃ below zero; four parts of water and five parts of antifreeze reduce this to 22℃ below zero.
Alcohol is a good antifreeze, but when the car is running it turns hot and the alcohol bums away, so it must be replaced very often. Most persons use antifreezes that do not boil away when the engine is running. There are many chemicals that do this. One of the most popular is called ethylene glycol, which is sold under various trade names such as Preston and Xerox.
The text is written_________.
A．to help to sell antifreezes
B．to explain what antifreezes are
C．to compare ethylene glycol with alcohol
D．to tell what kind of antifreeze to choose
You should turn off all the water tonight ______ water freezes and the pipes burst.
A．in some cases
B．in case
C．in that case
D．in any case
Fahrenheit scale
*____________
*____________
Modern Celsius scale
*____________
*____________
Kelvin Scale
*____________
Answer Choices
A. Water freezes at 0°and boils at 100°.
B. Water freezes at 273°and boils at 373°.
C. Water freezes at 100°and boils at 0°.
D. Water freezes at 32° and boils at 212°.
E. 0° is the temperature at which saltwater boils.
F. 0° is equal to the freezing temperature of water.
G. 0°was what was believed to be the lowest possible temperature of a solution of saltwater and ice.
A．Why fog freezes at low temperatures.
B．How very small droplets can form.
C．Why the density of fog varies.
D．How water droplets stay suspended in air.
Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.
听力原文： [26] Snakes may be found just about everywhere except the North Pole region and some islands in the South Pacific Ocean. Some snakes live in warm, dry deserts. Others live in green forests, fields and woodlands. Some never go far from water and are fine swimmers. Some live all their lives in the sea. Most snakes can swim. [27] Because snakes are cold-blooded and depend on warm air for comfort and existence, the largest number of snakes is found in the hottest parts of the earth. Even so, many snakes stay away from the direct rays of the sun when possible. If extra hot weather comes along, snakes find a coolest place possible and stay there. In places where it freezes, snakes often hide themselves far under the ground or in caves and stay until spring. Snakes are smart enough to stay alive. They are smart enough to find food and kill their enemies. But compared with other animals, [28] they are believed to be below average in intelligence.
(27)
A．In green forests.
B．In dry deserts.
C．In the Pacific Ocean.
D．In the North Pole region.
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