摘要:
本讲义聚焦八年级英语上册Unit1“A部分”核心知识点,围绕“地球上的水”主题,系统梳理地球水分布(97%海水、淡水封存等)、每日饮水量(2.7-3.7升)、水资源使用占比(农业69%等)及水滴数据(每秒1滴/日4.32升)等内容,通过信息图表输入、听力填空理解、高频短语汇总,构建从认知到应用的学习支架。
该资料特色在于融合数据化情境与语言训练,借助信息图表直观呈现水分布数据,提升学生语言能力(信息抓取与表达),融入“节约用水”环保主题,培养文化意识(社会责任感),设计分层练习(单项选择、完成句子)及参考答案,助力学习能力(策略运用)。课中辅助教师高效授课,课后帮助学生巩固词汇短语,查漏补缺。
内容正文:
八年级英语上册Unit1知识点-A部分讲义
【课文要点】
Part 1: A1 — 信息图表:Water on Earth
地球上的水分布:
1. About 97% of the Earth‘s water is sea water.
地球上约97%的水是海水。
- sea water 海水
- salt water 咸水
2. Fresh water locked up in ice or deep underground.
淡水被封存在冰中或深埋地下。
- locked up 封存,锁住
- deep underground 地下深处
3. Fresh water for human use.
可供人类使用的淡水。
每日饮水量:
4. How much water do we need to take in every day?
我们每天需要摄入多少水?
- take in 摄入,吸收
- every day 每天
5. 2.7 – 3.7 litres.
2.7 – 3.7升。
水资源使用分布:
6. Farm 69%
农业 69%
7. Factory 19%
工业 19%
8. Home 12%
家庭 12%
水滴数据:
9. 1 drip is a second, 86,400 drips (4.32 litres) a day.
每秒一滴水,一天86,400滴水(4.32升)。
- drip n. 水滴
- litres n. 升
Part 2: A2 & A3 — 听力数字与填空
听力填空答案:
1. More than 70% of the Earth’s surface is covered with water.
地球表面超过70%被水覆盖。
- is covered with 被……覆盖
2. About 97% of the water on Earth is salty. The rest is fresh water.
地球上约97%的水是咸水,其余是淡水。
- salty adj. 咸的
- the rest 其余的
3. We can reach only 1% of the world‘s fresh water and the other 2% is locked up in ice or deep underground.
我们只能获取世界上1%的淡水,另外2%被封存在冰中或地下深处。
4. Most of the fresh water we can reach is polluted, leaving only about 0.3% for people to drink.
我们能够获取的大部分淡水被污染,只剩下大约0.3%可供人们饮用。
- polluted adj. 被污染的
5. About 2 billion people in the world cannot get safely managed drinking water.
世界上约有20亿人无法获得安全管理的饮用水。
- safely managed drinking water 安全管理的饮用水
【高频短语汇总】(中英互译)
1. ________________________ 海水
2. ________________________ 封存,锁住
3. ________________________ 地下深处
4. ________________________ 摄入,吸收
5. ________________________ 被……覆盖
6. ________________________ 咸的
7. ________________________ 其余的
8. ________________________ 被污染的
9. ________________________ 水滴
10. ________________________ 安全管理的饮用水
【综合练习】
一、单项选择
( ) 1. About 97% of the Earth‘s water is ______.
A. fresh water B. sea water C. rain water D. ground water
( ) 2. ______ of the Earth’s surface is covered with water.
A. 50% B. 60% C. 70% D. 80%
( ) 3. We can reach only ______ of the world‘s fresh water.
A. 1% B. 2% C. 3% D. 4%
( ) 4. Most of the fresh water we can reach is ______.
A. clean B. salty C. polluted D. locked up
( ) 5. About ______ people in the world cannot get safely managed drinking water.
A. 2 million B. 2 billion C. 20 million D. 20 billion
( ) 6. Fresh water is locked up ______ ice or deep underground.
A. on B. at C. in D. for
( ) 7. How much water do we need to ______ every day?
A. take in B. take out C. take up D. take off
( ) 8. 1 drip is a second, 86,400 drips ______ a day.
A. is B. are C. was D. were
( ) 9. 86,400 drips is ______ litres.
A. 4.32 B. 3.27 C. 2.34 D. 5.43
( ) 10. Most water on Earth is ______.
A. fresh B. salty C. clean D. safe
二、根据汉语意思完成句子(每空一词)
1. 地球上约97%的水是海水。
About 97% of the Earth‘s water is ____________ water.
2. 地球表面超过70%被水覆盖。
More than 70% of the Earth’s surface is ____________ with water.
3. 地球上约97%的水是咸水,其余是淡水。
About 97% of the water on Earth is salty, and the ____________ is fresh water.
4. 我们只能获取世界上1%的淡水。
We can reach only 1% of the world‘s ____________ water.
5. 另外2%被封存在冰中或地下深处。
The other 2% is locked up in ____________ or deep underground.
6. 我们能够获取的大部分淡水被污染。
Most of the fresh water we can reach is ____________.
7. 世界上约有20亿人无法获得安全管理的饮用水。
About 2 ____________ people cannot get safely managed drinking water.
8. 我们每天需要摄入多少水?
How much water do we need to ____________ in every day?
9. 每秒一滴水。
1 ____________ is a second.
10. 一天86,400滴水。
86,400 drips a ____________.
11. 地球上的淡水很有限。
Fresh water on Earth is very ____________.
12. 农业用水占69%。
____________ uses 69% of the water.
13. 工业用水占19%。
____________ uses 19% of the water.
14. 家庭用水占12%。
____________ uses 12% of the water.
15. 我们需要节约用水。
We need to ____________ water.
16. 水对生命很重要。
Water is ____________ for life.
17. 很多河流被污染了。
Many rivers are ____________.
18. 我们应该保护水资源。
We should ____________ water resources.
19. 每天喝足够的水很重要。
It is important to drink ____________ water every day.
20. 地球上的水循环不断。
The water ____________ goes on and on.
【参考答案】
一、单项选择
1. B 2. C 3. A 4. C 5. B 6. C 7. A 8. A 9. A 10. B
二、完成句子
1. sea
2. covered
3. rest
4. fresh
5. ice
6. polluted
7. billion
8. take
9. drip
10. day
11. limited
12. Farming
13. Industry
14. Home
15. save
16. important
17. polluted
18. protect
19. enough
20. cycle
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