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根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Before going outside in the morning, many of us check a window thermometer(温度计)for the temperature. This helps us decide what to wear. _______71______ . We want our food to be a certain coldness in the refrigerator. We want it a certain hotness in the oven. If we don’t feel well, we use a thermometer to see if we have a fever. We keep our rooms a certain warmth in the winter and a certain coolness in the summer.
Not all the thermometers use the same system to measure temperature. We use a system called the Fahrenheit scale. But most other countries use the Centigrade scale.
Both systems use the freezing and boiling points of water as their guide._____72_______ .
The most common kind of thermometer is made with mercury(水银)inside a clear glass tube. As mercury (or any other liquid ) becomes hot, it expands. As it gets colder, it contracts(收缩). That is why on hot days the mercury line is high in the glass tube.______73______.
First. Take a clear glass juice bottle that has a cap; fill the bottle with coloured water. Tap a hole in the center of the cap using a hammer and thick nail. Put the cap on the jar. Then stick a plastic straw(吸管) through the nail hole.
_______74____________.
Finally. Place a white card on the outside of the bottle and behind the straw. Now you can see the water lever easily.
_______75___________.
As the temperature goes down, the water will contract, and the lever in the straw will come down. Perhaps you will want to keep a record of the water lever in the straw each morning for a week.
A. We use and depend on thermometers to measure the temperature of many other things in our daily lives.
B. Thermometers measure temperature, by using materials that change in the same way when they are heated or cooled.
C. Now that you know this rule you can make a thermometer of your own that will work.
D. The water will rise in the straw. As the temperature of the air goes up, the water will expand and rise even higher.
E. They label these in different ways. On the Fahrenheit scale water freezes at 32 degrees and boils at 212 degrees. On the Celsius scale water freezes at 0 degrees and boils at 100degrees.
F. Take wax (you may use an old candle if you have one) and melt some of it right where the straw is struck into the cap to seal(把..粘住) them together.
G. People use thermometers which are made by themselves when travelling around the world.
查看习题详情和答案>>根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,选项中有两项为多余选项。 (请把本题答案涂在答题卡上,若所用的答题卡没有E、F、G选项,则选E涂为AB,选F涂为AC,选G涂为AD。)
Any car accident is frightening, but an accident in which your vehicle is thrown into the water, with you trapped inside, is absolutely terrifying. 1 However, most deaths result from panic, without a plan or understanding what is happening to the car in the water. By adopting a brace (支撑) position, acting decisively and getting out fast, you can save yourself from a sinking vehicle.
Brace yourself for impact (撞击力). As soon as you're aware that you're going off the road and into a body of water, adopt a brace position. The impact could set off the airbag system in your vehicle, so you should place both hands on the steering wheel in the "ten and two" position.
Undo your seatbelt. 2 Untie the children, starting with the oldest first. Forget the cell phone call. Your car isn't going to wait for you to make the call.
3 Leave the door alone at this stage and concentrate on the window. A car's electrical system should work for up to three minutes in water, so try the method of opening it electronically first. Many people don't think about the window as an escape option either because of panic or misinformation about doors and sinking.
Break the window. If you aren't able to open the window, or it only opens halfway, you'll need to break it with an object or your foot. It may feel counter-intuitive (有悖常理的) to let water into the car. 4
Escape when the car has equalized. If it has reached the dramatic stage where the car cabin has been filled with water and it has become balanced, you must move quickly and effectively to ensure your survival. 5 While there is still air in the car, take slow, deep breaths and focus on what you're doing.
A. Open the window as soon as you hit the water.
B. Surviving a sinking car is not as difficult as you think.
C. It takes 60 to 120 seconds for a car to fill up with water usually.
D. Such accidents are particularly dangerous to the risk of drowning.
E. In conclusion, if you know what to do in the water, you will be safe.
F. This is the first thing to attend to, yet it often gets forgotten in the panic.
G. But the sooner the window is open, the sooner you can escape directly through it.
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Before going outside in the morning, many of us check a window thermometer(温度计)for the temperature. This helps us decide what to wear. _____76____. We want our food to be a certain coldness in the refrigerator. We want it a certain hotness in the oven. If we don’t feel well, we use a thermometer to see if we have a fever. We keep our rooms a certain warmth in the winter and a certain coolness in the summer.
Not all the thermometers use the same system to measure temperature. We use a system called the Fahrenheit scale. But most other countries use the Centigrade scale.
Both systems use the freezing and boiling points of water as their guide._____77_____ .
The most common kind of thermometer is made with mercury(水银)inside a clear glass tube. As mercury (or any other liquid ) becomes hot, it expands. As it gets colder, it contracts(收缩). That is why on hot days the mercury line is high in the glass tube._____78______.
First. Take a clear glass juice bottle that has a cap ; fill the bottle with coloured water. Tap a hole in the center of the cap using a hammer and thick nail. Put the cap on the jar. Then stick a plastic straw(吸管) through the nail hole.
______79______.
Finally. Place a white card on the outside of the bottle and behind the straw. Now you can see the water lever easily.
______80____.
As the temperature goes down, the water will contract, and the lever in the straw will come down. Perhaps you will want to keep a record of the water lever in the straw each morning for a week.
A.We use and depend on thermometers to measure the temperature of many other things in our daily lives. |
B.Thermometers measure temperature, by using materials that change in the same way when they are heated or cooled. |
C.Now that you know this rule you can make a thermometer of your own that will work. |
D.The water will rise in the straw. As the temperature of the air goes up, the water will |
expand and rise even higher.
E.They label these in different ways. On the Fahrenheit scale water freezes at 32 degrees and boils at 212 degrees. On the Celsius scale water freezes at 0 degrees and boils at 100degrees.
F.Take wax (you may use an old candle if you have one) and melt some of it right where the straw is struck into the cap to seal把..粘住) them together.
G.People use thermometers which are made by themselves when travelling around the
world.
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Before going outside in the morning, many of us check a window thermometer(温度计)for the temperature. This helps us decide what to wear. 【小题1】 We want our food to be a certain coldness in the refrigerator. We want it a certain hotness in the oven. If we don’t feel well, we use a thermometer to see if we have a fever. We keep our rooms a certain warmth in the winter and a certain coolness in the summer.
Not all the thermometers use the same system to measure temperature. We use a system called the Fahrenheit scale. But most other countries use the Centigrade scale.
Both systems use the freezing and boiling points of water as their guide. 【小题2】
The most common kind of thermometer is made with mercury(水银)inside a clear glass tube. As mercury (or any other liquid) becomes hot, it expands. As it gets colder, it contracts. That is why on hot days the mercury line is high in the glass tube. 【小题3】
First. Take a clear glass juice bottle that has a cap; fill the bottle with coloured water. Tap a hole in the center of the cap using a hammer and thick nail. Put the cap on the jar. Then stick a plastic straw(吸管) through the nail hole.
【小题4】
Finally. Place a white card on the outside of the bottle and behind the straw. Now you can see the water level easily.
【小题5】
As the temperature goes down, the water will contract, and the level in the straw will come down. Perhaps you will want to keep a record of the water level in the straw each morning for a week.
A.Thermometers measure temperature, by using materials that change in the same way when they are heated or cooled. |
B.We use and depend on thermometers to measure the temperature of many other things in our daily lives. |
C.Take wax (you may use an old candle if you have one) and melt some of it right where the straw is struck into the cap to seal (把……粘住) them together. |
D.The water will rise in the straw. As the temperature of the air goes up, the water will expand and rise even higher. |
F.Now that you know this rule you can make a thermometer of your own that will work.
G.People use thermometers which are made by themselves when travelling around the world. 查看习题详情和答案>>
阅读下面短文,回答文后的5个问题,并把答案写在答题卡指定区域内。
[1] If you read a newspaper or listen to a newscast(news report) recently, you may hear or read a strange word, “staycation.” Staycation is a new word the American press(newspapers, radio, and television) is using to describe a vacation very close to your own home, or simply staying at home during your vacation. It is a combination of the words “stay” and “vacation”.
[2] According to many news reports, these staycations are very popular among American families this year. Why? The high price of gasoline for cars and airplanes has made it very expensive for Americans to travel compared to past years. When you combine this with the weak American dollar, it all adds up to people deciding to stay close to home during their traditional summer vacations. Of course, some places are more interesting to “stay home at” than others. And if you live in a very small town, well, you may just want to skip your vacation and save your time up to next year!
[3] Everything is expensive nowadays, and let’s face it—a vacation just may not be in your plan this year. You don’t have to give up family fun just because you can’t ; instead, follow my tips for an economical staycation filled with old favorites and new adventures! Staycations have achieved high popularity in current hard economic times in which unemployment levels and gas prices are high.
1.What is this passage mainly about? (within one word)
2.Which two words make the new word “staycation”? (within 3 words)
3.What’s the meaning of “staycation”? (within 20 words)
4.Why are staycation popular this year? Please list two reasons. (each within 5 words)
5.Please fill in the blank with a phrase in the last paragraph. (with 3 words)
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