Module3 Unit5 Water
More practice& Culture corner 同步练习
词汇。
1.她的书是我的三倍。
She has ____ ____ ____ many books ____ I have.
2. 他喜欢喝果汁而不是牛奶。
He likes drinking juice _______ ____ milk.
3. 他昨晚喝了太多茶，所以没能睡好。
He drank____ ____ tea last night. ______, he couldn’t sleep well.
4. 科学家要发现新的能源不容易。
____ not easy ____ the scientists ____ ____ new energy.
5.这水经过处理?，但不是饮用水。
The water has been treated, but it is not _________ _____ .
二、根据对话内容，从方框内的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
A.You can start by turning off the lights . B.We get a lot of paper at home . C.You'd better clean your room every day . D.Turn off the shower . E.Can I help you ? F.Don't use plastic bags . G.Don't take a bus if you don’ t have to .
A：Hi , Janet . Would you like to help save the environment ? B：Yes . But what can I do ? A：Well .________? B：Yes , that's easy . Sometimes I turn on the lights without thinking . What's next ? A：Second , you can ride a bicycle .________? B：That will save money , too . What else ? A：Third , try to recycle paper . B：Mm . Newspapers , magazines , mails.________??Good idea . A：The fourth idea is turning off the shower when you're not using it . B：You mean when I have shampoo in my hair ? A：Yes . Get wet . ________??Put the shampoo in your hair and then turn on the shower and wash it out . B：Will that help the environment ? A：Yes , we have to save water . And fifth , take a bag when you go shopping . ________? B：OK . My parents do most of the shopping . I'll tell them .
三、完形填空。
How did we help to save our earth this week? Let me tell you. ?? First, my family tried to save electrcity (电). We never left the lights 1 ?when leaving the room. We 2 the TV when nobody was watching it. Mum only used cold water in the washing machine. ?? Second, we started recycling (回收) this week. We tried to write on 3 ?of our paper, no just on one side. We also divided our rubbish into 4 ?bags for bottles, paper and food. Mum kept the plastic shopping bags from the supermarket to use them again as rubbish bags. ?? Third, my family started to save 5 .We stopped 6 long baths and had short showers (淋浴) 7 . We washed toilet with used water. Mum and dad used less water to do the washing. My sister and I didn’t leave the tap (龙头) running when we brushed our teeth. ?? At last, mum and dad began to save gas (汽油). Mum used to 8 ?us to school, but now my sister and I started riding our bikes to school. It's hard work 9 ?good exercise!??????????????????????????????????????????????????????? ?? This week dad and a few of the people in his company also started to go to work in one car and share the 10 .? These are great ways to help protect our environment.
1. A. out?
B. on
C. off
D. behind
2. A.
turn up?
B. turn on
C. turn down
D. turn off
3. A.
any side?
B. all sides
C. neither side
D. both sides
4. A.
large?
B. small
C. different
D. the same
5. A. electricity?
B. food
C. water
D. paper
6. A. to use?
B. making
C. to have
D. taking
7. A. again
B. instead
C. already
D. too
8. A. drive?
B. order
C. show
D. carry
9. A. or
B. but
C. for
D. and
10. A. pay?
B. value
C. cost
D. price
四、阅读。
??? The world is not hungry, but it is thirsty. It seems strange that nearly 3/4 of the Earth is covered with water while we say we are short of（短缺）water. Why? Because about 97% of water on the Earth is sea water which we can't drink or use for watering plants directly(直接地）. Man can only drink and use the 3%-the water that comes from rivers and lakes. And we can't even use all of that, because some of it has been polluted(污染）.
??? Now more water is needed. The problem is Can we avoid（避免）a serious water shortage later on? First, we should all learn how to save water. Secondly, we should find out the ways to reuse it. Scientists have always been researching in the field. Today, in most large cities water is used only once and then runs to the seas or rivers. But it can be used again. Even if(即使）every large city reused its water, there would not be enough. What can people turn to next?
??? The seas seem to have the best answer. There is a lot of water in the seas. All that needs to be done is get the salt out of the sea water. This is expensive, but it's already used in many parts of the world. Scientists are trying to find a cheaper way of doing it. So you see, if we can find a way out, we'll be in no danger of drying up.
（1）The world is thirsty because?????????????? .
A.?3/4 of the Earth is covered with water B.?we have enough sea water to use directly C.?we haven't used all the water in rivers and lakes D.?about 97% of water on the Earth can't be drunk or used for watering plants directly
（2）Which of the following is TRUE?
A.?3% of water on the Earth is in rivers and lakes. B.?75% of water on the Earth is from the sea. C.?97% of the Earth is covered with water. D.?3% of water on the Earth is sea water.
（3）From the passage we know that
A.?if every large city reuses its water, we'll be in no danger of drying up B.?man can only drink and use about25% of water on the Earth C.?today in most large cities water is used only once D.?water can be used only once
（4）According to the passage, which of the following is the most important to avoid water shortage?
A.?Save water and try to make good use of the water in rivers and lakes. B.?Don't pollute water and keep all rivers and lakes clean. C.?Make dirty water clean and then reuse it. D.?Try to find a cheaper way to get the salt out of the sea water.
（5）What is the best title for the passage?
A.?The sea water????????B.?How to save water????????
C.?The thirsty world????????D.?The polluted water
MModule3 Unit5 Water
More practice& Culture corner 同步练习答案
一、1.three times as as
2.instead of
3.too much Therefore
4.It’s for to find
5.drinkable water
二、A；G；B；D；F
三、（1）B；（2）D；（3）D；（4）C；（5）C；（6）D；（7）B；（8）A；（9）B；（10）C；
四、（1）D
（2）A
（3）C
（4）D
（5）C
课件33张PPT。牛津深圳版 七年级下Module 3 Natural elements
Unit 5 WaterMore practice
&Culture corner Guessing gameRiddles You can’t catch his body.
You can’t see his shadow.
He can make flowers to dance.
He can make windmill to move.
Who is he?
wind I have no color, smell or shape. I am around you.
I am produced by green plants.
You breathe in me any time.
Who am I?
oxygen I have no color or smell.
I am very hard.
I can change into gas or water.
You can see me in fridge.
Who am I?
ice It has no taste.
It has no smell.
It has no colour.
It is everywhere around us.
Fire is afraid of it.
What is it? waterLet's talk about water.BrainstormWhat does water look like?
What can water be used for?
Who/What needs water?
How does water come to our home?
Can water change your form? Possible answers:
1.I have no colour /taste/smell/shape.
2. People need to drink me every day.
3. People drink me when they are thirsty.
4.I come from the oceans/seas/lakes/rivers.
5.I fall down as rain.
6.I enter your home through a pipe.
7.Flowers and trees need me.
8.I can be made into other drinks.
9.Water freezes at 0℃.
10.I become a gas when the temperature is over 100℃.
……Water covers almost 3/4 of the Earth.地球上71%为海洋，29%为陆地，大部分的都是海水。地球虽然有70．8%的面积为水所覆盖，但淡水资源却极其有限。在全部水资源中，97．5%是咸水，无法直接饮用。在余下的2．5%的淡水中，有87%是人类难以利用的两极冰盖、高山冰川和永冻地带的冰雪。人类真正能够利用的是江河湖泊以及地下水中的一部分，仅占地球总水量的0．25%左右，而且分布不均。Lead-inLet's know more about water.对于人来说，水是仅次于氧气的重要物质。在成人体内，60%的重量是水。儿童体内水的比重更大，可达近80%。如果一个人不吃饭，依靠自己体内贮存的营养物质或消耗自体组织，可以活上十天。但是如果不喝水，连几天时间也很难度过。体内失水10%就威胁健康，如失水20%,就有生命危险，足可见水对生命的重要意义。
水不仅是构成身体的主要成分，而且还有许多生理功能。水的溶解力很强，许多物质都能溶于水，并解离为离子状态，发挥重要的作用。 Water is very important in people’s life.我国是世界上用水最多的国家，同时也是水资源浪费最严重的国家之一。工业上，我国万元产值的耗水量是225立方米，生活用水中人们对水资源的毫不吝惜和肆无忌惮的浪费量却与工业用水相差不大。据统计，北京市仅一年的洗车耗水量，就相当于一个多昆明湖或6个北海的蓄水量。We should save water!Listen to the tape without opening your book.
Answer the following questions.Listening taskWhat's the topic of the passage?
2. How many facts are mentioned in the passage?
More Facts about water.Five.More Facts about WATER 1. About ________ of the human body is water.
50% B. 30% C. 70%
2. About ________ of the Earth is water.
80% B. 75% C. 60%
3. Most of the water in the world is ________.
A. fresh water B. drinkable C. undrinkable
4. If water drips from the tap every 10 seconds, we will waste about ______ litres of water a year.
A. 215 B. 315 C. 415
5. Having a shower instead of a bath can save up to ______ litres of water a week.
A. 400 B. 300 C. 200Reading taskTask1:Choose the correct answers.Some facts about water:
Water makes up 70% of the(1) _____ body.
Most of the water in the world is not (2)
__________.
It's not easy to find (3) ___________ that is clean and safe to drink.
How can we save water?
Fix a dripping (4)_______.
Take a (5) ________ instead of a(6)_______ .
Task2:Comple the sentences.humandrinkablegroundwatertapshowerbath1. Why is most of the water in the world not drinkable?
Because this water is salty.
2. Is groundwater safe to drink?
No, it isn’t.
3. Does it matter if water is always dripping from your tap?
Yes, it does.
4. Can people save water by taking a shower, or by
taking a bath?
By taking a shower.Task3:Answer the questions.Facts about water Here are some interesting facts about water:
About 70% of the human body is water.
Oceans cover about 75% of the Earth, but
ocean water is salty. Therefore most of the
water in the world is not drinkable.
Groundwater may be drinkable, but it is
not easy to find groundwater that is clean
and safe to drink.Reading task1Listen again and repeat.Facts about water If water drips from your tap every 10
seconds, you will waste about 315 litres of
water a year—enough to fill two baths!
Having a bath uses about twice as much
water as taking a shower. Having a shower
instead of a bath can save up to 400 litres a
week.1. Therefore most of the water in the world is not drinkable. 因此，世界上大部分的水是不能喝的。 【解析】therefore 意为“因此；所以”，与so 同义。
注意其区别：therefore 是副词，不能直接用来连接两个简单句，常放在句首，后面可以加逗号；放在句中作为插入语时，其前后都要加逗号。so 是连词，可以连接两个简单句，后面不加逗号，常用于口语中。Language points她很友善，因此我们都喜欢她。
She is kind. Therefore, we all like her.
= She is kind, so we all like her.2.Having a bath uses about twice as much water as taking a shower.
泡澡所用的水大约是淋浴的两倍。 【解析】twice 在本句中意为“两倍”，另外，它也有“两次”之意。英语中，“倍数”和“次数”的表达是一样的。once 意为“一次； 一倍”，twice 意为“两次；两倍”，“三次”或“三倍”以上则用“数词+ times”来表达，如：four times意为“四次；四倍”。
句型：A + be +倍数+ as +形容词原形+ as +B
意为“A 是B 的……倍”；他们的教室是我们的两倍大。
她的书是我的三倍。 Their classroom is twice as big as ours. She has three times as many books as I have.interesting facts
therefore
drinkable
have a bath
take a shower
twice as much…as
instead of
up to
It is not easy to find…有趣的事实
因此
可饮用的
泡澡
淋浴
是……的两倍
代替，而不是……
(数量，程度等)达到
找到……并不容易Living things can’t live without water.
If there is no water…If there is no water , the plants will die. Fish will die if there is no water. We have no water to drink, and we may die of thirst.What can we do to save water?Fix a dripping tap.Take a shower instead of a bath.B. In groups, discuss what else we can do to save water.Use washing machine only when it is . full the tap after using the water.Leave the tap on after using the water.Turn off the tap after filling the water bottle.Turn offUse water to wash the lunch box.lesssave waterin other placesat homeat schoolVenice City of WaterVideo time威尼斯（Venice），是意大利北部威尼托大区首府，威尼斯省省会，世界著名的历史文化名城。
威尼斯水上城市是文艺复兴的精华，世界上唯一没有汽车的城市，上帝将眼泪流在了这里，却让它更加晶莹和柔情，就好像一个漂浮在碧波上浪漫的梦。威尼斯有“因水而生，因水而美，因水而兴”的美誉，享有“水城、”“水上都市”“百岛城”“亚得里亚海的女王”“桥城”等美称。威尼斯外形像海豚。城市面积不到7.8平方公里，却由118个小岛组成，177条运河蛛网一样密布其间。Culture cornerVenice is famous throughout the world. People also call it the “Floating City” and the “City of Water” because the whole city is on the water—there are over 117 small islands and over 400 bridges in this city. One of the best ways to see the city is on a gondola—a traditional boat. Venice 谢谢21世纪教育网（www.21cnjy.com) 中小学教育资源网站 有大把高质量资料？一线教师？一线教研员？
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