Question

【题目】Before going outside in the morning, many of us check a window thermometer 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 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 lever easily. 【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.

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 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.

Answer 1

【答案】

【1】A

【2】E

【3】C

【4】F

【5】D

【解析】

试题分析:本文介绍了制作温度计的方法。并非所有的温度计运用同样的体系，有两种不同的类型：华氏温度计和摄氏温度计，但是都用凝固点和沸点作为指导原理，接着解释了温度计的制作方法。

【1】A考查对上下文的理解和推理判断能力。由前文This helps us decide what to wear温度计帮助我们决定穿衣，后文We want our food to be a certain coldness in the refrigerator. We want it a certain hotness in the oven.知我们在日常生活中都会用到温度计，A句正好总结了温度计在生活中的广泛运用，故选A。

【2】E考查对上下文的理解和推理判断能力。第二段引出了两种不同的温度计，但是它们的工作原理相同，E正好解释了他们的不同之处，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. 关键信息有凝固点、沸点不同，故选E。

【3】C考查对上下文的理解和推理判断能力。分析该空下面的段落提取信息firstly、finally，可知作者在告诉我们如何制作温度计，C正好符合，是一个总结句，故选C。

【4】F考查对上下文的理解和推理判断能力。联系上下文有如下动词：fill、tap、put、stick、place，这都是在教我们如何做温度计，本空位于制作环节的中间部分，故也是有关键动作的，F中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 them together.告诉我们要用蜡把吸管和杯盖封紧，故选F。

【5】D考查对上下文的理解和推理判断能力。本题给出了清晰的提示信息，该空后面As the temperature goes down, the water will contract, and the lever in the straw will come down.知当温度下降，水变少此时温度计的刻度杠杆下降。那么该空对应的就是温度上升这一情况，D描述了此情况，故选D。