Unit 4 The Wonders of Nature Section A 1a-2d 课后练习（含答案） 英语新教材人教版八年级下册

Unit 4 The Wonders of Nature
Section A 1a-2d 课后练习
一、根据音标或词义提示完成单词拼写。
1. The Sahara is one of the largest __________ (沙漠) in the world.
2. We were shocked by the beauty of the __________ / w t f l/ in Guizhou.
3. The __________ / n/ covers about 71% of the Earth's surface.
4. Look at that g__________ (巨大的) rock! It looks like a sleeping elephant.
5. Every year, thousands of __________ (游客) come to visit the natural wonders here.
二、用所给单词的适当形式填空。
6. The Grand Canyon is one of the most famous natural __________ (wonder) in the US.
7. This river is much __________ (large) than the one in our hometown.
8. My father encouraged me __________ (visit) the Yellow Mountain during the summer holiday.
9. Remember __________ (not miss) the sunrise when you are on the mountain top.
10. These __________ (guide) know everything about the local natural sights.
三、根据句意及汉语提示补全句子。
11. 我对自然奇观很感兴趣。
I am ____________________ natural wonders.
12. 他过去常常害怕在野外露营，但现在他很喜欢。
He ____________________ afraid of camping in the wild, but now he loves it.
13. 我希望有一天能亲眼看到维多利亚瀑布。
I hope to see Victoria Falls ____________________ one day.
14. 数百万的人每年都来这里欣赏这片美丽的湖泊。
____________________ people come here to enjoy the beautiful lake every year.
15. 当我看到那座巨大的山脉时，我被它的美丽震撼了。
When I saw the huge mountain, I ____________________ its beauty.
四、从选项中选择适当的选项补全对话。（选项中有两项是多余的）
Tom: Hi, Jack. Do you have any plans for this weekend
Jack: 16 __________
Tom: Sounds great! What natural sights can we see there
Jack: 17 __________ There's a big lake and several small waterfalls in it.
Tom: Wow, that's amazing. 18 __________
Jack: Yes, I will go with my cousin. 19 __________
Tom: I'd love to, but I have to help my mom with housework this weekend.
Jack: That's a pity. 20 __________
Tom: Sure! I'll join you next time.
A. Would you like to go with us
B. We can see many wonderful natural sights there.
C. I have a great plan.
D. Did you go there before
E. Maybe we can go together next time.
F. I don't like natural sights at all.
G. Are you going there alone
能力拔高题
The Grand Canyon (大峡谷) is one of the greatest natural wonders on Earth. It is located in the state of Arizona, USA. The canyon was formed by the Colorado River over millions of years. It is about 446 kilometers long, up to 29 kilometers wide, and over 1.6 kilometers deep.
Every year, more than 5 million people visit the Grand Canyon. They come to see its colorful rocks and amazing views. Some people hike along the trails, while others take helicopter tours to get a bird's-eye view of the canyon. The best time to visit is in spring or autumn, because the weather is not too hot or too cold.
Scientists say that the Grand Canyon is not just a beautiful place. It also tells us a lot about the Earth's history. The rocks in the canyon are layers of different ages. By studying these rocks, we can learn about how the Earth changed over millions of years.
根据材料内容选择最佳答案。
21. How was the Grand Canyon formed
A. By strong winds over thousands of years.
B. By the Colorado River over millions of years.
C. By earthquakes many years ago.
D. By people's hard work.
22. How deep is the Grand Canyon
A. Over 1.6 kilometers.
B. About 446 kilometers.
C. Up to 29 kilometers.
D. About 5 million meters.
23. What do some people do to get a bird's-eye view of the canyon
A. Hike along the trails.
B. Take boat tours.
C. Take helicopter tours.
D. Climb to the top on foot.
24. Why is spring or autumn the best time to visit
A. Because there are fewer people.
B. Because the weather is pleasant.
C. Because the rocks are more colorful.
D. Because we can learn more about Earth's history.
25. What can we learn from the rocks in the Grand Canyon
A. How people lived there millions of years ago.
B. How the Colorado River was formed.
C. How the Earth changed over millions of years.
D. How many visitors come every year.
答案以及解析
一、根据音标或词义提示完成单词拼写
1. deserts
2. waterfall
3. ocean
4. giant
5. tourists/visitors
【解析】
1. “沙漠”对应英文`desert`，与`one of`搭配时需用复数形式`deserts`。
2. 音标/ w t f l/对应单词`waterfall`（瀑布）。
3. 音标/ n/对应单词`ocean`（海洋）。
4. “巨大的”对应英文`giant`，符合首字母`g`提示。
5. “游客”可译为`tourists`或`visitors`，与`thousands of`搭配需用复数形式。
二、用所给单词的适当形式填空
6. wonders
7. larger
8. to visit
9. not to miss
10. guides
【解析】
6. 固定结构`one of + 形容词最高级 + 名词复数`，`wonder`的复数形式为`wonders`。
7. 由`than`可知需用比较级，`large`的比较级为`larger`。
8. 固定搭配`encourage sb. to do sth.`（鼓励某人做某事），故填`to visit`。
9. 固定搭配`remember not to do sth.`（记得不要做某事），故填`not to miss`。
10. `These`后接可数名词复数，`guide`的复数形式为`guides`。
三、根据句意及汉语提示补全句子
11. interested in
12. used to be
13. with my own eyes
14. Millions of
15. was shocked by
【解析】
11. “对……感兴趣”对应固定短语`be interested in`。
12. “过去常常”对应固定搭配`used to be`，后接形容词作表语。
13. “亲眼看见”对应固定短语`with my own eyes`。
14. “数百万的”对应固定短语`Millions of`，注意首字母大写。
15. “被……震撼”对应短语`be shocked by`，结合过去时态，故填`was shocked by`。
四、从选项中选择适当的选项补全对话
16. C
17. B
18. G
19. A
20. E
【解析】
16. 上文询问周末计划，`I have a great plan.`（我有一个很棒的计划）符合语境。
17. 上文询问能看到的自然景观，`We can see many wonderful natural sights there.`（我们在那里能看到很多绝妙的自然景观）直接回应问题。
18. 下文回答“和堂弟一起去”，`Are you going there alone `（你要独自去那里吗？）是合理的提问。
19. 下文回应`I'd love to`，`Would you like to go with us `（你愿意和我们一起去吗？）符合语境。
20. 上文提到无法同行的遗憾，`Maybe we can go together next time.`（或许我们下次可以一起去）给出后续邀约，符合逻辑。
能力拔高题
21. B
22. A
23. C
24. B
25. C
【解析】
21. 细节理解题。根据第一段第三句`The canyon was formed by the Colorado River over millions of years.`可知，大峡谷是由科罗拉多河历经数百万年形成的。
22. 细节理解题。根据第一段最后一句`...and over 1.6 kilometers deep.`可知，大峡谷深度超过1.6千米。
23. 细节理解题。根据第二段第三句`while others take helicopter tours to get a bird's-eye view of the canyon.`可知，乘直升机可以获得大峡谷的鸟瞰视角。
24. 细节理解题。根据第二段最后一句`because the weather is not too hot or too cold.`可知，春秋季天气适宜，是最佳游览时间。
25. 细节理解题。根据最后一段最后一句`By studying these rocks, we can learn about how the Earth changed over millions of years.`可知，研究大峡谷的岩石可以了解地球数百万年的演变历程。