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沪教版八年级英语上Unit 1 Water语法精练
（Adverbial clauses of time 时间状语从句 & Indefinite pronouns 不定代词）
一、词汇运用（紧扣单元主题）
1. Don't waste even a single ________ (drop) of water when washing hands.
2. The new ________ (factory) near the river has promised to treat wastewater properly.
3. More than seven ________ (billion) people on Earth depend on clean water.
4. The ________ (salty) of sea water makes it unsuitable for drinking.
5. I drank half the bottle, and the ________ (rest) will be saved for later.
6. Clean water is becoming ________ (rare) in some dry regions.
7. Our group will give a ________ (presentation) on water conservation tomorrow.
8. This app is ________ (useful) for tracking daily water usage.
9. The ________ (boring) lecture on water pollution made us realize its seriousness.
10. Harmful ________ (chemical) from factories are polluting the lake.
11. The ________ (wastewater) treatment plant can clean 10,000 litres of water daily.
12. The plan will ________ (include) a visit to a local water factory.
13. Scientists are doing ________ (research) on new ways to save water.
14. Do you ________ (agree) that water is more precious than oil
15. The importance of water goes ________ (beyond) our daily needs.
二、句型转换（聚焦单元语法）
1. We turn off the tap. We finish washing dishes.（用when合并）
We turn off the tap ________ we finish washing dishes.
2. The rain stops. We will start the river clean-up.（用as soon as合并）
We will start the river clean-up ________ the rain stops.
3. You take a shower. Don't stay in too long.（用while合并）
________ you take a shower, don't stay in too long.
4. We learn about water pollution. We understand its dangers.（用after合并）
We understand its dangers ________ we learn about water pollution.
5. People protect water sources. They will have enough clean water.（用if合并）
________ people protect water sources, they will have enough clean water.
6. There is something wrong with the water pump.（改为否定句）
There is ________ wrong with the water pump.
7. He has some useful tips for saving water.（改为一般疑问句）
Does he have ________ useful tips for saving water
8. Everyone knows the importance of water.（改为部分否定句）
________ knows the importance of water.
9. We need to collect 50 litres of rainwater.（对划线部分提问）
________ ________ rainwater do we need to collect
10. Most of the water is used for agriculture.（对划线部分提问）
________ ________ of the water is used for agriculture
11. They will plant trees. They finish the water survey.（用before合并）
They will plant trees ________ they finish the water survey.
12. Someone left the tap running.（改为一般疑问句）
Did ________ leave the tap running
13. We can reuse water. We clean the floor.（用to合并，表目的）
We can reuse water ________ ________ the floor.
14. There is little water left in the bottle.（改为反意疑问句）
There is little water left in the bottle, ________ ________
15. He saved water. He wanted to set a good example.（用so that合并）
He saved water ________ ________ he could set a good example.
三、阅读理解（围绕“水”主题，渗透语法）
A篇：Water-Saving Week at School
Last week, our school held a Water-Saving Week. When we arrived on Monday, posters about water conservation were everywhere. As soon as the bell rang, the head teacher gave a speech on how precious water is.
During the week, we learned that it takes 1,000 litres of water to make one hamburger. Hardly anyone wasted water after hearing that. On Friday, we collected rainwater, which we used to water the school garden. Everyone realized that saving water is everyone's duty.
1. When did the school hold Water-Saving Week
A. Next week B. Last week C. This week D. Tomorrow
2. What were everywhere when students arrived
A. Books B. Posters about water conservation C. Toys D. Food
3. How much water does it take to make one hamburger
A. 100 litres B. 500 litres C. 1,000 litres D. 2,000 litres
4. Who wasted water after hearing the fact
A. Many students B. Most teachers C. Hardly anyone D. Everyone
5. What did they do with the collected rainwater
A. Drank it B. Watered the school garden C. Threw it away D. Used it for cooking
B篇：Water Treatment in Our City
Our city has a big water treatment plant that cleans 500,000 litres of wastewater daily. When wastewater arrives at the plant, it goes through several cleaning steps. First, large objects like plastic bags are removed. Then, chemicals are added to make small dirt particles stick together.
After the treatment, the water becomes clean enough to be used for watering parks. Most people don't know that this reused water helps save millions of litres of fresh water every year. The plant also does research on better cleaning methods to protect our rivers.
6. How much wastewater does the plant clean daily
A. 50,000 litres B. 500,000 litres C. 1,000,000 litres D. 5,000,000 litres
7. What is removed first in the treatment
A. Small dirt particles B. Chemicals
C. Large objects like plastic bags D. Water plants
8. What are added to make small dirt particles stick together
A. Chemicals B. Oil C. Salt D. Sugar
9. What is the reused water used for
A. Drinking B. Cooking C. Watering parks D. Washing cars
10. What does the plant do to protect rivers
A. Stops using water B. Does research on better cleaning methods
C. Closes factories D. Moves to a new place
四、书面表达（围绕“水”主题，综合运用语法）
以“Water Conservation in My Daily Life”为题，写一篇短文，描述日常生活中的节水行为，至少使用5处时间状语从句和3处不定代词。
要求：1. 语言准确，贴合单元主题；2. 词数100-150词。
答案
一、词汇运用
1. drop 2. factory 3. billion 4. saltiness 5. rest 6. rare 7. presentation 8. useful
9. boring 10. chemicals 11. wastewater 12. include 13. research 14. agree 15. beyond
二、句型转换
1. when 2. as soon as 3. While 4. after 5. If 6. nothing 7. any 8. Not everyone
9. How much 10. What part 11. before 12. anyone 13. to clean 14. is there 15. so that
三、阅读理解
A篇：1. B 2. B 3. C 4. C 5. B
B篇：6. B 7. C 8. A 9. C 10. B
四、书面表达（参考范文）
Water Conservation in My Daily Life
Water conservation is part of my daily life. When I wake up, I always remember to turn off the tap while brushing my teeth. After washing my face, I save the water to clean the floor. As soon as my mom finishes washing clothes, we use the wastewater to water the flowers.
Hardly anyone in my family wastes water. Everyone takes short showers to save water. While my dad waters the plants, he uses a bucket instead of a hose. I hope everyone can do something small to protect this precious resource—even a single drop counts.

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