The Sahara Desert is the largest desert in the world. It stretches across Africa from Senegal to Egypt. The Sahara Desert is an unfriendly environment. During the day it's very hot, and at night it's sometimes very cold. It is also difficult to find water in the Sahara.

In 2006, Kevin Lin, Ray Zahab, and Charlie Engle decided to do something very difficult. They made the decision to run across the Sahara Desert 4,300 miles （6,920km）. It seemed impossible to do, but they wanted to try. The three men liked to test themselves, and this would be a very big test.

On the morning of November 2, Kevin, Ray, and Charlie started their trip across the Sahara. Every morning they began running at 5:00. At 11 a.m. they stopped and rested until 5 p.m. Then they ran again until 9:30 in the evening. Each day they ran about 40 miles （64 km）. Every day it was the same thing. They got up and ran. They listened to music on their iPods, and they ran and ran.

Kevin, Ray, and Charlie needed to eat a lot of food during their trip. Most people need about 2,000 calories of food each day. Kevin, Ray, and Charlie needed between 6,000 and 9,000 calories every day. That's a lot of food! They also needed to drink a lot of water.

The three men had some problems on their trip, and many times they wanted to quit and go home. It was often very hot （140°F/60°C）during the day, and the heat made them sick. Their legs and feet hurt. Sometimes it was very windy, and they couldn't see. One time they got lost. But they didn't quit. After 111 days, Kevin, Ray; and Charlie successfully finished their trip across the Sahara Desert. They hugged each other and put their hands in the water of the Red Sea. Then they ran to a hotel to take a long shower.

【練習】

1. It's not always hot in the Sahara Desert.

A. Right B. Wrong C. Not mentioned

Each day the men ran for approximately eight hours.

A. Right B. Wrong C. Not mentioned

In the middle of the day, the men usually stopped running.

A. Right B. Wrong C. Not mentioned

They sometimes felt sick because it was so hot.

A. Right B. Wrong C. Not mentioned

Sometimes they couldn't see the road because it was windy.

A. Right B. Wrong C. Not mentioned

Luckily，they never got lost.

A. Right B. Wrong C. Not mentioned

On their irip across the desert, the three men ran through five countries.

A. Right B. Wrong C. Not mentioned

【答案與題解】

1. A 文中提到撒哈拉沙漠白天很熱晚上有時很冷，所以不是總是很熱。題干表述正確。

2. B 文中提到三人每天從早上5點開始跑一直到上午11點，又從下午5點開始跑到晚上9點半，所以總共跑10.5個小時。題干表述不正確。

3. A 文中講到三人上午11點停下來休息一直到下午5點再繼續(xù)跑，所以在一天的中午，他們停止跑步。題干表述正確。

4. A 原文中講到高溫使他們生病。所以題干表述正確。

5. A 文中提到有時刮起大風導致他們什么也看不到，所以他們會因為起風而看不到路。題干表述正確。

6. B 文中最后一段講到他們有一次迷路了，所以不是從來沒有迷路。題干表述不正確。

7. C 文中只提到他們跨越沙漠的長度，并沒有提到穿過幾個國家。所以，題干表述文中沒有提到。

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