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Câu hỏi: Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer for each of the questions from 30 to 34.
A WALK IN THE MIDDAY SUN
Hot weather makes your heart pump harder, and if you're not very fit, you start to understand why the majority of mountain rescue statistics are made up from summer walkers suffering heart attacks. Heat exhaustion is quite easy to get when you're making a great physical effort. It happens where your body can't produce enough sweat to keep you cool. The answer is to keep up your water intake. It's a good idea to drink a pint of water for every 10 degrees Fahrenheit every hours. So, if the temperature is in the 70s, and you are 10 doing a five-hour walk, you'll need a minimum of around one and a half pints of water. It's vital that you don't wait until you develop a raging thirst before you stop for a drink - keep taking regular swigs from your water bottle.
Many walkers flavour their water with fruit juice, which makes it a lot more palatable. You could even use one of the isotonic drinks made for athletes, which replace the body's salts lost through sweating. Powders such as Dioralyte, which you may have in the house as a treatment for diarrhea, will do the job just as well, as its main aim is also effective rehydration.
Walking in the heat increases the rate at which your feet swell, which can lead to them feeling tight in your boots. Cool water from a stream reduces any swelling and helps general 30 foot comfort. At the same time, you can check out your feet for signs of blisters. Extra sweating makes the skin softer and increases the chance of blisters forming, in the same way as when water teaks into your boots and gets to your feet.
As for what clothing you wear, this should be lightweight and 35 reasonably loose-fitting. Tight clothing wilt feel uncomfortable and may even lead to the formation of an irritating rashknown as 'prickly heat' on your skin. The answer, if this does develop, is to try and stay cool as much as possible. Do this by either keeping in the shade, or washing the affected area 40 with cold water, but without soap. But prevention is by far the best approach, so keep your clothing light.
It's understandable to want to remove any extraneous clothing when it's extremely hot, but it doesn't really make much sense to take off T-shirts. The sun's rays can be quite strong, 45 and shoulders are always very sensitive to sunburn. This is the worst place to be red and sore when you are wearing a heavy rucksack on your back. Wearing shorts can also create problems for walkers, as the backs of the legs can catch the sun very easily.
In fact, those days when an apparently harmless breeze is blowing can be the most deceptive. It might not feel so hot, so you probably won't notice the damage being done so soon. As on every other day then, a good strong sun cream should therefore be applied to any skin which is exposed. Make the most of the 55 summer, but treat the sun with the respect it deserves.
According to the writer, when are walkers particularly at risk from the effects of the sun?
A. When they are unaware of the heat
B. If their sun cream is not strong enough
C. When there is a strong wind
D. If they have suffered an injury
A WALK IN THE MIDDAY SUN
Hot weather makes your heart pump harder, and if you're not very fit, you start to understand why the majority of mountain rescue statistics are made up from summer walkers suffering heart attacks. Heat exhaustion is quite easy to get when you're making a great physical effort. It happens where your body can't produce enough sweat to keep you cool. The answer is to keep up your water intake. It's a good idea to drink a pint of water for every 10 degrees Fahrenheit every hours. So, if the temperature is in the 70s, and you are 10 doing a five-hour walk, you'll need a minimum of around one and a half pints of water. It's vital that you don't wait until you develop a raging thirst before you stop for a drink - keep taking regular swigs from your water bottle.
Many walkers flavour their water with fruit juice, which makes it a lot more palatable. You could even use one of the isotonic drinks made for athletes, which replace the body's salts lost through sweating. Powders such as Dioralyte, which you may have in the house as a treatment for diarrhea, will do the job just as well, as its main aim is also effective rehydration.
Walking in the heat increases the rate at which your feet swell, which can lead to them feeling tight in your boots. Cool water from a stream reduces any swelling and helps general 30 foot comfort. At the same time, you can check out your feet for signs of blisters. Extra sweating makes the skin softer and increases the chance of blisters forming, in the same way as when water teaks into your boots and gets to your feet.
As for what clothing you wear, this should be lightweight and 35 reasonably loose-fitting. Tight clothing wilt feel uncomfortable and may even lead to the formation of an irritating rashknown as 'prickly heat' on your skin. The answer, if this does develop, is to try and stay cool as much as possible. Do this by either keeping in the shade, or washing the affected area 40 with cold water, but without soap. But prevention is by far the best approach, so keep your clothing light.
It's understandable to want to remove any extraneous clothing when it's extremely hot, but it doesn't really make much sense to take off T-shirts. The sun's rays can be quite strong, 45 and shoulders are always very sensitive to sunburn. This is the worst place to be red and sore when you are wearing a heavy rucksack on your back. Wearing shorts can also create problems for walkers, as the backs of the legs can catch the sun very easily.
In fact, those days when an apparently harmless breeze is blowing can be the most deceptive. It might not feel so hot, so you probably won't notice the damage being done so soon. As on every other day then, a good strong sun cream should therefore be applied to any skin which is exposed. Make the most of the 55 summer, but treat the sun with the respect it deserves.
According to the writer, when are walkers particularly at risk from the effects of the sun?
A. When they are unaware of the heat
B. If their sun cream is not strong enough
C. When there is a strong wind
D. If they have suffered an injury
Câu trả lời dựa vào thông tin "It might not feel so hot, so you probably won't notice the damage being done so soon."
Đáp án A.