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.    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.    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.    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.

   4.   

Finally. Place a white card on the outside of the bottle and behind the straw. Now you can see the water level easily.

   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.

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 100 degrees.

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.

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(收缩). 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 lever easily. ___【小题5】____.
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.

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。注意：涂卡时，如答题卡上没有E、F、G选项，请按如下方式填涂：选E涂AB；选F涂BC；选G涂CD。

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.    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.     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 (收缩) . That is why on hot days the mercury line is high in the glass tube.     3        

   First, take a clear glass juice bottle that has a cap; fill the bottle with colored 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.

        4    

   Finally, place a white card on the outside of the bottle and behind the straw. Now you can see the water level easily.

        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.       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 100 degrees.

F.       Take wax ( you may use an old candle if you have one ) and melt some of it right where the straw is stuck into the cap to seal them together. 

G.       People use thermometers which are made by themselves when travelling around the world.

D

Parties, iPods, concerts, movies, TV shows, video games, traffic. All of these things of the modern world make life entertaining and enjoyable. But our 21^st-century lifestyle is also loud and, if we don’t take notice, it can have an effect on our hearing.

Most teenagers don’t think about hearing loss. But if you experience any of the following symptoms（症状）, you may already be hearing damaged: you make efforts to hear normal talk, you have to turn up the TV or radio so high that others complain, you watch other people’s expressions to understand what they are saying, you ask people to repeat themselves, you misunderstand what people are saying or you hear ringing in your ears.

iPods and other MP3 players are as common as the clothes you wear, and just as fashionable. But if you turn up an iPod to more than 60 percent of its maximum volume（最大音量）, and listen to music for more than an hour, you are asking for trouble. And, it does not matter if the music you play is classical, rock or heavy metal.

Some researchers find that young people who break the so-called 60-percent/60-minute rule in listening to iPods are at the risk of suffering hearing loss.

Why is an iPod dangerous? With ear buds placed directly in the ear canal and high-volume music played over a long period of time, it’s like working in a loud factory all day, being a maintenance（修理）person under a jet airplane or using a jackhammer（手提钻）on a building site.

Similarly, iPod music can cause a short time or permanent（永久的）hearing damage. A loud iPod can cause a ruptured（破裂的）eardrum and, over time, may cause permanent damage to the tiny hairs in the inner ear. If these tiny hairs are damaged, they cannot effectively send sounds to the auditory nerves（听觉神经）that connect to the brain. If this happens, hearing loss becomes permanent.

1.Which of the following shows that you are suffering hearing loss?

A．You are interested to listen to others’ talking.

B．You have to read others’ expressions to understand them.

C．You can only understand others over the phone.

D．You always think you hear the ringing of the phone.

2. Which of the following is TRUE when you listen to music?

A．Listen at least an hour every time.

B．Turn up the volume to the highest level.

C．keep the sound lower than 60% of its highest volume.

D．Choose classical, rock or heavy metal music.

3.What is the correct order of causing permanent hearing loss?

a. The eardrum is broken.

b. The auditory nerves cannot receive sounds.

c. Tiny hairs are damaged.

d. Ear buds are placed directly in the ear canal.

e. High-volume music is played over a long time.

A．d-a-c-b-e          B．e-c-a-b-d          C．b-c-a-d-e          D．d-e-a-c-b

4.This passage is mainly about      .

A．music that teenagers like                 B．hearing problems caused by the loud world

C．ways that teenagers enjoy music            D．dangerous modern lifestyles of teenagers.