题目内容
Travelling is a very good activity. When you are fed up with your work and when you can get a holiday, you can go to the beautiful places to enjoy the beauty of nature and the special character of other cities. You can breathe fresh air, visit some places of interest, meet different people and make friends with them. If you do so, you will forget your tiredness and troubles and build up your health. As a result, you will feel fully relaxed and you will have the energy to do the new tasks waiting for you.
But sometimes, travelling is not an enjoyable thing. For example, when the bus or car you take has a bad accident, you just sit in and waste your time. What’s more, the weather can be changeable. If you are climbing a mountain, it may rain suddenly. You may be caught in the rain and may catch a cold. The worst thing is that you may have your money stolen and you may have an injury. All these are terrible things that can happen to a tourist.
Therefore, when you are going on a trip, you must prepare yourself carefully. Firstly, you must have clear information about the weather. Second, you should choose a good partner so that you can help each other. Thirdly, you must be careful everywhere and try to avoid accidents. If you do this, you’ll surely enjoy your travels and avoid any unnecessary trouble.
56. In the first paragraph, the underlined words “are fed up with” means ________.
A. finish doing B. can’t do C. are tired of D. are interested in
57. What is NOT mentioned in the passage? _______
A. You may meet with a good friend.
B. You may ill on a trip.
C. You will have to spend a lot of money on a bus or in a car.
D. It’s necessary for you to know about the weather before you travel.
58. In order to have a good holiday, you should _________.
A. never be careful enough
B. have a holiday with a good friend
C. take an umbrella with you
D. be well prepared for your trip
CCD
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.
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A．We use and depend on thermometers to measure the temperature of many other things in our daily lives. |
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B．Thermometers measure temperature, by using materials that change in the same way when they are heated or cooled. |
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C．Now that you know this rule you can make a thermometer of your own that will work. |
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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.