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答案解析
一、根据中文提示写出单词的正确形式
1. depth；解析：the depth of… 固定搭配，表示“……的深度”
2. height；解析：the height of… 固定搭配，表示“……的高度”
3. wonders；解析：one of+形容词最高级+可数名词复数，表示“最……之一”
4. bottom；解析：to the bottom 固定搭配，表示“到底部”
5. unusual；解析：it’s unusual to do sth. 表示“做某事是不寻常的”
6. below；解析：below freezing 固定搭配，表示“低于冰点”
7. surface；解析：the surface of… 表示“……的表面”
8. drew；解析：draw one’s attention 吸引注意力，last night 用过去式drew
9. risks；解析：many 后接可数名词复数 risks
10. coast；解析：southern coast 表示“南部海岸”
11. sand；解析：sand 表示“沙子”为不可数名词
12. underwater；解析：underwater world 固定搭配，表示“水下世界”
13. condition；解析：in good condition 固定搭配，表示“状况良好”
14. survive；解析：it’s difficult for sb./sth. to do sth. 用动词原形survive
15. dive；解析：begin to do sth. 用动词原形dive，表示“潜水”
16. ship；解析：large ship 表示“大轮船”，谓语动词用carries，主语为单数
17. development；解析：with the development of… 固定搭配，表示“随着……的发展”
18. Desert；解析：Sahara Desert 专有名词，表示“撒哈拉沙漠”
19. shoulder；解析：put one’s hand on one’s shoulder 表示“把手放在肩膀上”
20. teammate；解析：one 后接可数名词单数teammate，表示“队友”
21. alive；解析：alive or dead 固定搭配，表示“活着还是死了”
22. reef；解析：swim close to the reef 表示“游近礁石”
23. pool；解析：a small pool 表示“小池塘”
24. death；解析：the death of… 表示“……的死亡”，die的名词形式
25. degrees；解析：thirty-five degrees 表示“35度”，degree用复数
26. climber；解析：the climber 表示“攀登者”，谓语动词用trains，主语为单数
27. simply；解析：副词simply修饰形容词too difficult，表示“仅仅、只”
28. curiosity；解析：out of curiosity 固定搭配，表示“出于好奇心”
29. explorers；解析：many 后接可数名词复数explorers，表示“探险者”
30. includes；解析：主语the price为单数，一般现在时用includes
31. southern；解析：southern part 固定搭配，表示“南部的”
32. at any cost；解析：固定短语，表示“不惜任何代价”
33. cubic meters；解析：250 cubic meters 表示“250立方米”，meter用复数
34. Bit by bit；解析：固定短语，表示“一点一点地”
35. sea level；解析：固定短语，表示“海平面”
二、用括号内单词的正确形式填空
1. deserts；解析：many 后接可数名词复数deserts
2. wonders；解析：one of+可数名词复数，用wonders
3. changeable；解析：形容词changeable修饰weather，表示“多变的”
4. death；解析：the death of… 表示“……的死亡”，die的名词形式
5. risky；解析：it is risky to do sth. 表示“做某事有风险”
6. deepest；解析：the+形容词最高级，表示“最深的”
7. natural；解析：natural beauty 固定搭配，表示“自然美景”
8. traveler；解析：a famous Chinese traveler 表示“一位著名的中国旅行者”
9. southern；解析：southern part 表示“南部地区”
10. to survive；解析：it is hard to do sth. 固定句型
11. climbers；解析：many 后接可数名词复数climbers
12. development；解析：the development of… 表示“……的发展”
13. bottom；解析：at the bottom of… 表示“在……底部”
14. in condition；解析：in condition 表示“身体状况良好”
15. thick；解析：形容词thick修饰snow，表示“厚的”
16. tourists；解析：many 后接可数名词复数tourists，表示“游客”
17. height；解析：the height of… 表示“……的高度”
18. exploring；解析：enjoy doing sth. 固定搭配
19. measurement；解析：the measurement of… 表示“……的测量”
20. lifetime；解析：a lifetime 表示“一生”
21. curious；解析：形容词curious修饰kitten，表示“好奇的”
22. beaches；解析：islands 为复数，beach保持一致用复数beaches
23. simply；解析：副词simply修饰动词ask
24. unusual；解析：it is unusual to do sth. 表示“做某事不寻常”
25. distance；解析：a short distance 表示“短距离”
26. farthest；解析：the+副词最高级，表示“最远地”
27. height；解析：the height of… 表示“……的高度”
28. lowest；解析：the lowest floor 表示“最低楼层”
29. dangerous；解析：it is dangerous to do sth. 表示“做某事危险”
30. tallest；解析：one of+the+形容词最高级+名词复数
31. shoulders；解析：our shoulders 表示“我们的肩膀”，用复数
32. islands；解析：many 后接可数名词复数islands
33. research；解析：do research 固定搭配，research为不可数名词
34. mysterious；解析：形容词mysterious修饰place，表示“神秘的”
35. width；解析：the width of… 表示“……的宽度”
三、根据首字母提示完成句子
1. square；解析：square kilometers 表示“平方千米”
2. Danger；解析：Danger Road 表示“危险之路”
3. includes；解析：主语group为单数，用includes，表示“包含”
4. below；解析：see…below 表示“在下面看见……”
5. deep；解析：…meters deep 表示“……米深”
6. ocean；解析：ocean 表示“海洋”，覆盖地球大部分
7. length；解析：the length of… 表示“……的长度”
8. wonder；解析：I wonder if… 固定句型，表示“我想知道是否……”
9. condition；解析：in good condition 表示“状况良好”
10. freeze；解析：will 后接动词原形freeze，表示“结冰”
11. thick；解析：thick snow 表示“厚雪”
12. dangerous；解析：it’s dangerous to do sth. 表示“做某事危险”
13. curiosity；解析：out of curiosity 表示“出于好奇心”
14. survive；解析：can 后接动词原形survive，表示“幸存”
15. desert；解析：Sahara desert 表示“撒哈拉沙漠”
16. kilometers；解析：square kilometers 表示“平方千米”
17. natural；解析：natural wonders 表示“自然奇观”
18. culture；解析：ancient culture 表示“古代文化”
19. Trench；解析：Mariana Trench 专有名词，表示“马里亚纳海沟”
20. wide；解析：very wide 表示“非常宽”
21. temperature；解析：the temperature 表示“温度”
22. tourists；解析：many tourists 表示“许多游客”
23. pool；解析：in the pool 表示“在池塘里”
24. cubic；解析：cubic meters 表示“立方米”
25. distance；解析：the distance between… 表示“……之间的距离”
26. ladder；解析：with the help of a ladder 表示“在梯子的帮助下”
27. degrees；解析：ten degrees 表示“十度”
28. sand；解析：play with sand 表示“玩沙子”
29. level；解析：on the same level 表示“在同一水平”
30. underwater；解析：stay underwater 表示“待在水下”人教版（2024）八年级下册Unit 4 The Wonders of Nature单元重点词汇变形100题
一、根据中文提示写出单词的正确形式。
1．Scientists use special tools to measure the ________ (深) of the Mariana Trench.
2．The Nile River’s water ________ (高度) changes greatly during the rainy season.
3．The Grand Canyon is one of the greatest natural ________ (奇观) in the world.
4．The lake’s water is so clear that you can see to the ________ (底部) through it.
5．It’s ________ (不寻常) to find a rainforest growing in such a cold climate.
6．Tonight temperatures will fall well ________ (低于) freezing (冰点).
7．The ________ (表面) of the lake is covered with a thin layer (层) of ice.
8．Last night, his funny story ________ (吸引) everyone’s attention at the party.
9．There are many ________ (风险) when you travel alone in a foreign country.
10．Many small villages lie along the southern ________ (海岸), where the sea is calm and blue.
11．The children played in the soft white ________ (沙子) and collected seashells all afternoon.
12．Many people are interested in the ________ (水下的) world.
13．We are in good ________ (状况) every day.
14．It is very difficult for plants to ________ (幸存) in the desert without enough water.
15．The swimmer took a deep breath and began to ________ (潜水).
16．The large ________ (轮船) carries goods and travels across the blue sea every day.
17．With the ________ (发展) of China, more and more children can go to school for free.
18．The Sahara ________ is the largest in the world, with extremely high temperatures during the day. (沙漠)
19．He puts his hand on my __________ (肩膀) and gives me a smile.
20．I know you play soccer very well, but we only need one __________ (队友).
21．We don’t know whether he’s __________ (活着，在世) or dead.
22．With great difficulty, the fisherman swam close to the __________ (礁).
23．After visiting the Taklimakan Desert, we found a small ________ (池塘) to rest by.
24．The ________ (死亡) of his grandfather made him very sad last month.
25．The temperature rose to thirty-five ________ (度数) at noon.
26．Every morning, the _______ (攀登者) trains (训练) at the indoor rock wall to improve strength.
27．The math problem is ________ (仅仅；只) too difficult for the little boy to work out.
28．Out of ________ (好奇心), she opened the old letter even though it wasn’t addressed to her.
29．Many brave ________ (探险者) lost their lives in the journey to the South Pole.
30．The price of the tour ________ (包含；包括) breakfast and dinner in the hotel.
31．We visited a small town in the ________ (南部的) part of France.
32．The company must protect its customers’ data ________ ________ ________ (不惜任何代价) to maintain trust and security.
33．The swimming pool has a volume of 250 _________ ________ (立方米), making it suitable for competitive training.
34．________ ________ ________ (一点一点地), the climbers moved up the cliff.
35．Due to climate change, the melting ice caps are causing the _________ ________ (海平面) to rise gradually.
二、用括号内单词的正确形式填空。
1．Scientists have studied many big ________ (desert) around the world, like the Sahara and the Gobi.
2．Qomolangma is one of the most amazing natural ________ (wonder) in the world.
3．The weather in the mountains is ________ (change) and can turn from sunny to rainy very quickly.
4．The ________ (die) of the old man made everyone in the village very sad.
5．It is ________ (risk) to drive a car in such heavy fog without headlights.
6．The ________ (deep) lake in the world is Lake Baikal in Russia.
7．Guilin is famous for its amazing ________ (nature) beauty all over the world.
8．Xu Xiake was a famous Chinese ________ (travel) who walked across many parts of China.
9．The ________ (south) part of China is famous for its delicious rice and fresh seafood.
10．It is very hard ________ (survive) in such terrible conditions.
11．Many ________ (climb) from around the world come to challenge Qomolangma every year.
12．The fast ________ (develop) of the city has changed people’s life a lot.
13．We stood at the ________ (bottom) of the canyon and felt very small.
14．We are ________ (condition) to work hard every day.
15．The ________ (thick) snow made the road hard to walk on.
16．Many ________ (tour) come to visit the natural wonders every year.
17．The ________ (high) of Qomolangma is about 8,848 meters.
18．My sister enjoys ________(explore) the wonders of nature with her friends on weekends.
19．We used simple tools for the ________ (measure) of the tree’s diameter.
20．Visiting the Great Barrier Reef is the dream of a ________ (lifetime).
21．The ________ (curiosity) kitten always likes to stare at (打量) new guests.
22．It includes over 900 islands and white sand ________ (beach).
23．You can ________ (simple) ask the teacher if you don’t understand the question.
24．It is ________ (usual) to see snow in this city in May.
25．It’s a short ________ (distant) from my home to the supermarket.So I always walk there.
26．The Yangtze River travels the ________ (far) and is about 6,300 kilometres long.
27．We measure the ________ (high) of the hill with special tools.
28．My apartment (公寓) is on the ________ (low) floor of the building, so I never need to wait for the lift.
29．It’s ________ (danger) to swim alone in the river.
30．He is one of the ________ (tall) boys in our class.
31．We should learn to look after our ________ (shoulder) when we carry heavy things.
32．There are many ________ (island) in the lake.
33．They are doing ________ (research) on birds.
34．People still don’t know much about the deep sea. It is a ________ (mystery) place.
35．The ________ (wide) of the street is about 20 meters.
三、根据首字母提示完成句子。
1．An adult Siberian tiger (东北虎) needs up to 10 s________ kilometers of forest to live in．
2．Mountain climbers called that road the “D_________ Road”.
3．The medical group i________two doctors and five nurses.
4．You can see the small village b________ from the top of the hill.
5．The Mariana Trench is about 11,000 metres d________.
6．The o________ is very big and covers most of the earth.
7．The l________ of the river is about 1,000 kilometers.
8．I w________ if you can help me with my English.
9．We are in good c________ and can work hard.
10．The water will f________ when the temperature is below zero.
11．The snow is very t________ and you can walk on it.
12．It’s very d________ to swim in the deep river alone.
13．Children often ask many questions out of c________ about the natural world.
14．Many rare animals can only s________ in the protected natural reserves.
15．The Sahara is the largest d________ in the world, covering a vast area of over 9 million square kilometers.
16．It takes up an area of 345,000 square k________.
17．The Giant’s Causeway is one of the most famous n________ wonders in the world.
18．The Great Wall is a symbol of China’s ancient c________.
19．The Mariana T________ is the deepest place in the ocean.
20．The river is very w________ and you can’t swim across it.
21．The t________ is very low today and it’s very cold.
22．Many t________ come to China to visit the Great Wall.
23．My uncle raises lots of fish in the p________ in his garden.
24．This tub (桶) is big enough to hold 1. 5 c________ metres of water.
25．The d________ between the two buildings is about 50 metres.
26．The boy climbed the tall wall with the help of a l________.
27．The temperature dropped by ten d________ overnight.
28．Children like to play with s________ on the beach in summer.
29．They are on the same l________ in their careers.
30．Sea turtles can stay u________ for a long time without breathing.

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