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核心单词
名词
1. 系统
3. 行星
5. 北；北方
7. 沙漠；荒漠
9. 谷粒
11. 蝴蝶
13. 污染
15. 地下水
17. 天然气
19. 皇帝
21. 沙暴
23. (统称) 一代人
动词
24. 盖；覆盖
26. 足够达到
28. 探索
30. 保护
32. 打猎
形容词
34. 令人大为惊奇的
36. 宽的；宽阔的
38. 自己的；本人的
副词
39. 然而；不过
数词
40. 十亿
单词拓展
一、词性转换
1. amazing adj. 令人大为惊奇的—amaze v. 使惊奇
2. north n. 北；北方—northern adj. 北方的
3. wide adj. 宽的；宽阔的—①widely adv. 广泛地 ②width n. 宽度
4. explore v. 探索—①explorer n. 探险者 ②exploration n. 探索
续表
5. pollution n. 污染—①pollute v. 污染 ②polluted adj. 受污染的
6. protect v. 保护—①protection n. 保护 ②protector n. 保护者
7. chemical n. 化学制品；化学品—①chemistry n. 化学 ②chemist n. 化学家
8. harmful adj. 有害的—①harmless adj. 无害的 ② harm n.&v. 伤害；损害
9. own adj. 自己的；本人的—owner n. 主人；物主
二、一词多性
1. cover v. 盖；覆盖 n. 覆盖物 2. north n. 北方 adj. 北方的 adv. 朝北
3. desert n. 沙漠 v. 抛弃
4. chemical n. 化学制品；化学品 adj. 与化学有关的；化学的
5. own adj. 自己的；本人的 v. 拥有
重要词组
1. 太阳系
3. 被……覆盖
5. 海平面
7. 在许多不同方面
9. 是……的家园
11. 提供；供应；给予
13. 塑料污染
15. 数以百计
典型句子
1. 地球上的植物在许多不同方面都很奇妙。(in many different ways)
2. 最小的植物就像一粒米一样小。(as ... as)
3. 地球是无数动物的家园。(be home to ...)
4. 地球为我们提供了我们需要的一切。(provide ... with ...)
5. 该地发生了森林火灾和战争，人们砍伐了许多树木。(cut down)
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核心单词
名词
1. 系统
system
2. 档案 file
3. 行星
planet
4. 地区；地域 area
5. 北；北方
north
6. (行星的) 极；地极 pole
7. 沙漠；荒漠
desert
8. 米 metre
9. 谷粒
grain
10. 鲸 whale
11. 蝴蝶
butterfly
12. 塑料 plastic
13. 污染
pollution
14. 化学制品；化学品 chemical
15. 地下水
groundwater
16. 石油；原油 oil
17. 天然气
gas
18. 网站 website
19. 皇帝
emperor
20. 战争 war
21. 沙暴
sandstorm
22. 解决办法 solution
23. (统称) 一代人
generation
动词
24. 盖；覆盖
cover
25. 支持；维持 support
26. 足够达到
reach
27. 提供；供应 provide
28. 探索
explore
29. 消失；不见 disappear
30. 保护
protect
31. 燃烧；烧 burn
32. 打猎
hunt
33. 刮；吹 blow
形容词
34. 令人大为惊奇的
amazing
35. 极冷的 freezing
36. 宽的；宽阔的
wide
37. 有害的 harmful
38. 自己的；本人的
own
副词
39. 然而；不过
however
数词
40. 十亿
billion
单词拓展
一、词性转换
1. amazing adj. 令人大为惊奇的—amaze v. 使惊奇
2. north n. 北；北方—northern adj. 北方的
3. wide adj. 宽的；宽阔的—①widely adv. 广泛地 ②width n. 宽度
4. explore v. 探索—①explorer n. 探险者 ②exploration n. 探索
续表
5. pollution n. 污染—①pollute v. 污染 ②polluted adj. 受污染的
6. protect v. 保护—①protection n. 保护 ②protector n. 保护者
7. chemical n. 化学制品；化学品—①chemistry n. 化学 ②chemist n. 化学家
8. harmful adj. 有害的—①harmless adj. 无害的 ② harm n.&v. 伤害；损害
9. own adj. 自己的；本人的—owner n. 主人；物主
二、一词多性
1. cover v. 盖；覆盖 n. 覆盖物 2. north n. 北方 adj. 北方的 adv. 朝北
3. desert n. 沙漠 v. 抛弃
4. chemical n. 化学制品；化学品 adj. 与化学有关的；化学的
5. own adj. 自己的；本人的 v. 拥有
重要词组
1. 太阳系
solar system
2. 事实档案 fact file
3. 被……覆盖
be covered by
4. 据我们所知 as far as we know
5. 海平面
sea level
6. 超过 more than
7. 在许多不同方面
in many different ways
8. 像……一样…… as ... as
9. 是……的家园
be home to ...
10. 更重要的是 what's more
11. 提供；供应；给予
provide ... with ...
12. 照顾；照料 take care of
13. 塑料污染
plastic pollution
14. 砍倒 cut down
15. 数以百计
hundreds of
16. 吹走 blow away
典型句子
1. 地球上的植物在许多不同方面都很奇妙。(in many different ways)
The plants on Earth are wonderful in many different ways.
2. 最小的植物就像一粒米一样小。(as ... as)
The smallest plant is as small as a grain of rice.
3. 地球是无数动物的家园。(be home to ...)
The Earth is home to millions of animals.
4. 地球为我们提供了我们需要的一切。(provide ... with ...)
The Earth provides us with all the things we need.
5. 该地发生了森林火灾和战争，人们砍伐了许多树木。(cut down)
There were forest fires and wars, and people cut down many trees.
答案
Unit 4 The Earth
知识导航
核心单词: 1. system 2. file 3. planet
4. area 5. north 6. pole 7. desert
8. metre 9. grain 10. whale
11. butterfly 12. plastic 13. pollution
14. chemical 15. groundwater 16. oil
17. gas 18. website 19. emperor
20. war 21. sandstorm 22. solution
23. generation 24. cover 25. support
26. reach 27. provide 28. explore
29. disappear 30. protect 31. burn
32. hunt 33. blow 34. amazing
35. freezing 36. wide 37. harmful
38. own 39. however 40. billion
重要词组: 1. solar system 2. fact file
3. be covered by 4. as far as we know
5. sea level 6. more than
7. in many different ways 8. as ... as
9. be home to ... 10. what's more
11. provide ... with ... 12. take care of
13. plastic pollution 14. cut down
15. hundreds of 16. blow away
典型句子: 1. The plants on Earth are wonderful in many different ways.
2. The smallest plant is as small as a grain of rice.
3. The Earth is home to millions of animals.
4. The Earth provides us with all the things we need.
5. There were forest fires and wars, and people cut down many trees.
知识导航
核心单词: 1. system 2. file 3. planet
4. area 5. north 6. pole 7. desert
8. metre 9. grain 10. whale
11. butterfly 12. plastic 13. pollution
14. chemical 15. groundwater 16. oil
17. gas 18. website 19. emperor
20. war 21. sandstorm 22. solution
23. generation 24. cover 25. support
26. reach 27. provide 28. explore
29. disappear 30. protect 31. burn
32. hunt 33. blow 34. amazing
35. freezing 36. wide 37. harmful
38. own 39. however 40. billion
重要词组: 1. solar system 2. fact file
3. be covered by 4. as far as we know
5. sea level 6. more than
7. in many different ways 8. as ... as
9. be home to ... 10. what's more
11. provide ... with ... 12. take care of
13. plastic pollution 14. cut down
15. hundreds of 16. blow away
典型句子: 1. The plants on Earth are wonderful in many different ways.
2. The smallest plant is as small as a grain of rice.
3. The Earth is home to millions of animals.
4. The Earth provides us with all the things we need.
5. There were forest fires and wars, and people cut down many trees.
解析
【分析】本题为英语单元基础知识梳理题，考查Unit4《The Earth》的核心单词、重要词组及典型句子的英译。解题时需结合中文释义，回忆单元所学的对应英语词汇、固定搭配和句型，确保拼写准确，符合单元知识点要求，完成填空。
【解析】核心单词对应答案依次为：1. system 2. file 3. planet 4. area 5. north 6. pole 7. desert 8. metre 9. grain 10. whale 11. butterfly 12. plastic 13. pollution 14. chemical 15. groundwater 16. oil 17. gas 18. website 19. emperor 20. war 21. sandstorm 22. solution 23. generation；动词对应：24. cover 25. support 26. reach 27. provide 28. explore 29. disappear 30. protect 31. burn 32. hunt 33. blow；形容词对应：34. amazing 35. freezing 36. wide 37. harmful 38. own；副词对应：39. however；数词对应：40. billion。重要词组对应答案依次为：1. solar system 2. fact file 3. be covered by 4. as far as we know 5. sea level 6. more than 7. in many different ways 8. as ... as 9. be home to ... 10. what's more 11. provide ... with ... 12. take care of 13. plastic pollution 14. cut down 15. hundreds of 16. blow away。典型句子对应答案依次为：1. The plants on Earth are wonderful in many different ways. 2. The smallest plant is as small as a grain of rice. 3. The Earth is home to millions of animals. 4. The Earth provides us with all the things we need. 5. There were forest fires and wars, and people cut down many trees.
【答案】Unit 4 The Earth
知识导航
核心单词: 1. system 2. file 3. planet
4. area 5. north 6. pole 7. desert
8. metre 9. grain 10. whale
11. butterfly 12. plastic 13. pollution
14. chemical 15. groundwater 16. oil
17. gas 18. website 19. emperor
20. war 21. sandstorm 22. solution
23. generation 24. cover 25. support
26. reach 27. provide 28. explore
29. disappear 30. protect 31. burn
32. hunt 33. blow 34. amazing
35. freezing 36. wide 37. harmful
38. own 39. however 40. billion
重要词组: 1. solar system 2. fact file
3. be covered by 4. as far as we know
5. sea level 6. more than
7. in many different ways 8. as ... as
9. be home to ... 10. what's more
11. provide ... with ... 12. take care of
13. plastic pollution 14. cut down
15. hundreds of 16. blow away
典型句子: 1. The plants on Earth are wonderful in many different ways.
2. The smallest plant is as small as a grain of rice.
3. The Earth is home to millions of animals.
4. The Earth provides us with all the things we need.
5. There were forest fires and wars, and people cut down many trees.
【知识点】英语核心词汇、英语固定词组、英语句型
【点评】本题是单元基础巩固类练习题，覆盖单元核心词汇、固定搭配及重点句型，旨在帮助学生梳理单元基础知识，夯实英语学习根基，题型常规且针对性强，适合学生课后巩固使用。
【难度系数】0.8
【解析】核心单词对应答案依次为：1. system 2. file 3. planet 4. area 5. north 6. pole 7. desert 8. metre 9. grain 10. whale 11. butterfly 12. plastic 13. pollution 14. chemical 15. groundwater 16. oil 17. gas 18. website 19. emperor 20. war 21. sandstorm 22. solution 23. generation；动词对应：24. cover 25. support 26. reach 27. provide 28. explore 29. disappear 30. protect 31. burn 32. hunt 33. blow；形容词对应：34. amazing 35. freezing 36. wide 37. harmful 38. own；副词对应：39. however；数词对应：40. billion。重要词组对应答案依次为：1. solar system 2. fact file 3. be covered by 4. as far as we know 5. sea level 6. more than 7. in many different ways 8. as ... as 9. be home to ... 10. what's more 11. provide ... with ... 12. take care of 13. plastic pollution 14. cut down 15. hundreds of 16. blow away。典型句子对应答案依次为：1. The plants on Earth are wonderful in many different ways. 2. The smallest plant is as small as a grain of rice. 3. The Earth is home to millions of animals. 4. The Earth provides us with all the things we need. 5. There were forest fires and wars, and people cut down many trees.
【答案】Unit 4 The Earth
知识导航
核心单词: 1. system 2. file 3. planet
4. area 5. north 6. pole 7. desert
8. metre 9. grain 10. whale
11. butterfly 12. plastic 13. pollution
14. chemical 15. groundwater 16. oil
17. gas 18. website 19. emperor
20. war 21. sandstorm 22. solution
23. generation 24. cover 25. support
26. reach 27. provide 28. explore
29. disappear 30. protect 31. burn
32. hunt 33. blow 34. amazing
35. freezing 36. wide 37. harmful
38. own 39. however 40. billion
重要词组: 1. solar system 2. fact file
3. be covered by 4. as far as we know
5. sea level 6. more than
7. in many different ways 8. as ... as
9. be home to ... 10. what's more
11. provide ... with ... 12. take care of
13. plastic pollution 14. cut down
15. hundreds of 16. blow away
典型句子: 1. The plants on Earth are wonderful in many different ways.
2. The smallest plant is as small as a grain of rice.
3. The Earth is home to millions of animals.
4. The Earth provides us with all the things we need.
5. There were forest fires and wars, and people cut down many trees.
【知识点】英语核心词汇、英语固定词组、英语句型
【点评】本题是单元基础巩固类练习题，覆盖单元核心词汇、固定搭配及重点句型，旨在帮助学生梳理单元基础知识，夯实英语学习根基，题型常规且针对性强，适合学生课后巩固使用。
【难度系数】0.8
