2026年启东中学作业本七年级英语下册译林版第119页解析答案

五、阅读理解。
The Sahara is the largest hot desert in the world. It covers over nine million square kilometres across North Africa. The weather there can be very different in a day's time. During the day, temperatures rise above 40℃, while nights can be very cold. It is one of the toughest(最艰难的) environments on earth.
The Sahara is as big as Canada but has very few people. Less than two and a half million people live there, and most of them are nomads. Nomads are people who have no permanent(固定的) homes. They move from place to place, carrying everything they need to live. The nomads in the Sahara are called Bedouin, which means "desert people". They depend on goats, sheep, and camels for food and transport. Water is the most important for them, and they need water to live, so they must carry enough water or know where to find it. Without water, life is impossible.
A desert is not defined(定义) by sand but by the lack of rain. To be a desert, a place must get less than 250 mm of rain each year. Surprisingly, only 25% of the Sahara is covered in sand. The rest is rock and gravel(沙砾).
Long ago, the Sahara was covered in ice and later turned into grasslands. Over time, it became the desert we see today. Truly, the Sahara is a place of history and change.
(

)1. Where is the Sahara?
A. In North Asia.
B. In North Africa.
C. In North Canada.
D. In North America.
(

)2. What does the underlined word "nomads" probably mean in Chinese?
A. 农耕民族
B. 渔猎民族
C. 定居民族
D. 游牧民族
(

)3. 创新考法—事物推断题 Which of the following is TRUE about Bedouin?
A. The word means people who love deserts.
B. The Bedouin use cars and trucks to get around.
C. The most important thing for Bedouin is water.
D. Life is impossible without goats, sheep and camels.
(

)4. According to the text, what is a desert?
A. A place that has nomads living in it.
B. A place that is very hot and dry all year round.
C. A place that has more than 25% sand on its surface.
D. A place that gets less than 250 mm of rain every year.
(

)5. What is the passage about?
A. Facts about the Sahara.
B. The people of the Sahara.
C. The weather of the Sahara.
D. The history of the Sahara.

答案：五、1. B 【点拨】根据“The Sahara is the largest hot desert in the world. It covers over nine million square kilometres across North Africa.”可知，撒哈拉沙漠位于北非。故选 B。
2. D 【点拨】根据“Nomads are people who have no permanent(固定的) homes. They move from place to place, carrying everything they need to live.”可知这些人没有固定的住所。所以，nomads 应是“游牧民族”。故选 D。
3. C 【点拨】根据“Water is the most important for them, and they need water to live, so they must carry enough water or know where to find it.”可知，对贝都因人来说，最重要的是水。故选 C。
4. D 【点拨】根据“A desert is not defined(定义) by sand but by the lack of rain. To be a desert, a place must get less than 250 mm of rain each year.”可知，沙漠的定义是年降雨量不足 250 毫米，而不是由沙子决定的。故选 D。
5. A 【点拨】文章详细描述了撒哈拉沙漠的地理位置、气候特征、居住的游牧民族以及历史变化等内容，全面介绍了撒哈拉沙漠的相关事实。A 选项“关于撒哈拉的事实”概括了文章主旨，适合作文章标题。故选 A。

解析：

翻译:
### 五、阅读理解
撒哈拉沙漠是世界上最大的热带沙漠。它横跨北非，面积超过900万平方千米。那里一天之内的天气会有很大变化。白天，气温会升到40℃以上，而夜晚则会非常寒冷。它是地球上最恶劣的环境之一。
撒哈拉沙漠和加拿大一样大，但人口非常少。居住在那里的人不到250万，而且他们中的大多数是游牧民。游牧民是没有固定住所的人。他们带着生活所需的一切四处迁徙。撒哈拉沙漠的游牧民被称为贝都因人，意思是“沙漠居民”。他们依靠山羊、绵羊和骆驼获取食物和交通工具。水对他们来说是最重要的，他们需要水来生存，所以他们必须携带足够的水或者知道在哪里能找到水。没有水，生命就无法存在。
沙漠的定义不是由沙子决定的，而是由降雨量少决定的。一个地方要成为沙漠，每年的降雨量必须少于250毫米。令人惊讶的是，撒哈拉沙漠只有25%的面积被沙子覆盖。其余的是岩石和沙砾。
很久以前，撒哈拉沙漠被冰雪覆盖，后来变成了草原。随着时间的推移，它变成了我们今天看到的沙漠。确实，撒哈拉沙漠是一个充满历史和变化的地方。
1. 撒哈拉沙漠在哪里？
A. 在北亚。
B. 在北非。
C. 在加拿大北部。
D. 在北美洲。
2. 划线单词“nomads”在中文里可能是什么意思？
A. 农耕民族
B. 渔猎民族
C. 定居民族
D. 游牧民族
3. 创新考法—事物推断题关于贝都因人，下列哪项是正确的？
A. 这个词的意思是热爱沙漠的人。
B. 贝都因人使用汽车和卡车出行。
C. 对贝都因人来说最重要的东西是水。
D. 没有山羊、绵羊和骆驼，生命就无法存在。
4. 根据文章，什么是沙漠？
A. 一个有游牧民居住的地方。
B. 一个全年都非常炎热干燥的地方。
C. 一个表面有超过25%沙子的地方。
D. 一个每年降雨量少于250毫米的地方。
5. 这篇文章是关于什么的？
A. 关于撒哈拉沙漠的事实。
B. 撒哈拉沙漠的居民。
C. 撒哈拉沙漠的天气。
D. 撒哈拉沙漠的历史。