二、阅读短文，回答问题
Can you imagine a sea of sand three times bigger than India? This is the Sahara Desert, the largest hot desert in the world. It lies in 11 countries in North Africa and is over 9 million square kilometres.
In the Sahara, temperatures are very different during the day and at night. It is much hotter during the day than at night. During the day, the temperature can easily rise to 40℃ in summer. But at night, it can fall to around 10℃.
Because of the extreme (极端的) temperatures, the desert is not an ideal place for people to settle (定居). However, here are still some tips for travellers.
Take warm clothes and a blanket. You will need a hat, long trousers and a thick sweater to keep you warm at night. During the day, cover your body, head and face. Clothes protect you from the sun and keep water in your body. You will also need a warm blanket at night. It can get cold quickly. When the temperature drops, it makes you feel even colder.
Try to drink some water at least once every hour. You need your water to last as long as possible. Drink only what you need. If you eat, you will get thirsty and your water will run out soon. You can eat a little, but only to stop you from feeling very hungry. Eat a little food slowly.
It's important to stay out of the sun during the day. Make a hole under your car and lie there. This will keep you cool and help you sleep. Find a warm place to sleep at night. A small place near a tree or a rock will be the warmest. But be careful before you decide where to sleep. Dangerous animals like snakes also like to sleep in these places. Look carefully for such animals before you lie down.
1. What is the size of the world's largest desert?
2. What is quite different between the day and the night in the Sahara Desert?
3. How often should you drink water in the Sahara Desert?
4. What kind of place should you choose to sleep at night in the Sahara Desert?
5. Besides the three tips in the article, what other tip(s) can you give?
Can you imagine a sea of sand three times bigger than India? This is the Sahara Desert, the largest hot desert in the world. It lies in 11 countries in North Africa and is over 9 million square kilometres.
In the Sahara, temperatures are very different during the day and at night. It is much hotter during the day than at night. During the day, the temperature can easily rise to 40℃ in summer. But at night, it can fall to around 10℃.
Because of the extreme (极端的) temperatures, the desert is not an ideal place for people to settle (定居). However, here are still some tips for travellers.
Take warm clothes and a blanket. You will need a hat, long trousers and a thick sweater to keep you warm at night. During the day, cover your body, head and face. Clothes protect you from the sun and keep water in your body. You will also need a warm blanket at night. It can get cold quickly. When the temperature drops, it makes you feel even colder.
Try to drink some water at least once every hour. You need your water to last as long as possible. Drink only what you need. If you eat, you will get thirsty and your water will run out soon. You can eat a little, but only to stop you from feeling very hungry. Eat a little food slowly.
It's important to stay out of the sun during the day. Make a hole under your car and lie there. This will keep you cool and help you sleep. Find a warm place to sleep at night. A small place near a tree or a rock will be the warmest. But be careful before you decide where to sleep. Dangerous animals like snakes also like to sleep in these places. Look carefully for such animals before you lie down.
1. What is the size of the world's largest desert?
2. What is quite different between the day and the night in the Sahara Desert?
3. How often should you drink water in the Sahara Desert?
4. What kind of place should you choose to sleep at night in the Sahara Desert?
5. Besides the three tips in the article, what other tip(s) can you give?
答案：1. Over 9 million square kilometres.
2. Temperatures.
3. At least once every hour.
4. A small place near a tree or a rock.
5. Bring a map and a compass (or other reasonable answers).
2. Temperatures.
3. At least once every hour.
4. A small place near a tree or a rock.
5. Bring a map and a compass (or other reasonable answers).