资源简介

(共45张PPT)
Unit 5
Water is life
七年级
沪教版（2024）
下
核心知识梳理总结
梳理内容
01
单元单词梳理
05
单元语法梳理
02
单元词形变换
03
单元短语梳理
04
单元句型梳理
06
话题写作讲解
01
单元单词梳理
单元单词梳理
词汇 音标 词性和词义
everyday / evride / adj.每天的;日常的
form /f :m/ n.类型;种类
journey / d ：ni/ n.(尤指长途)旅行
*pipe /pa p/ n.管子;管道
return /r 't n/ v.回去；返回
rush /r / v.迅速移动
tap /t p/ n.水龙头
drop /dr p/ n.滴；水珠
voice /v s/ n.说话声
单元单词梳理
词汇 音标 词性和词义
eventually / vent u li/ adv.最后;终于
bath /ba:θ/ n.洗澡；洗浴
brain /bre n/ n.脑
salt /s :lt/ adj.含盐的；咸的
fix /f ks/ v.修理
public /'p bl k/ adj.公共的;公开的
agriculture / ɡr k lt (r)/ n.农业
business /'b zn s/ n.买卖;生意
duty /dju:ti/ n.责任;义务
单元单词梳理
词汇 音标 词性和词义
goods /ɡ dz/ n.商品；货品
industry /'ind stri/ n.工业;生产制造
*leisure / le (r)/ n.闲暇;空闲;休闲
overseas / v si z/ adv.在国外;向海外
role /r l/ n.角色
throughout /θru a t/ prep.自始至终:贯穿
trade /tre d/ n.贸易；买卖
business /'b zn s/ n.买卖;生意
global / ɡl bl/ adj.全球的;全世界的
单元单词梳理
词汇 音标 词性和词义
population / p pju le n/ n.人口
duty /dju:ti/ n.责任;义务
a bit 有点儿；稍微
at once 立即；马上
drinking water 饮用水
as a result 作为结果；因此
make sure 确保;设法保证
play a role in （在...中）扮演一个角色
02
单元词形变换
单元词形变换
form n.类型;种类→formation n.形成；构成
journey n.(尤指长途)旅行 → journeyer n.旅行者；旅客
pipe n.管子;管道 → piping n.管道系统（动词 pipe 的现在分词）
rush v.迅速移动 →rushing n. 匆忙；冲进（动词 rush 的现在分词）
tap n.水龙头→tapping n. 轻敲；轻拍（动词 tap 的现在分词）
drop n.滴；水珠→dropping n. 落下；掉下（动词 drop 的现在分词）
voice n.说话声 →voiceless adj.无声的；无发言权的
eventually adv.最后;终于→eventual adj.最终的；最后的
单元词形变换
bath n.洗澡；洗浴→bathroom n.浴室；卫生间 →bathe v.洗澡；沐浴 →bathing n.洗澡；游泳（动词 bathe 的现在分词）
brain n.脑 → brainy adj.聪明的；脑筋好的；有头脑的 →brainstorm n.头脑风暴；集思广益
salt adj.含盐的；咸的 →salty adj. 咸的；含盐的 →saltiness n.咸度；咸味；含盐量
fix v.修理 → fixable adj. 可固定的；可确定的；可修理的
agriculture n.农业 →agricultural adj.农业的；农用的；农艺的
trade n.贸易；买卖 →trader n.商人；交易者；商船→ tradesman n.商人；店主；手艺人
单元词形变换
business n.买卖;生意→businessman n.商人；企业家
global adj.全球的;全世界的→globally adv. 全球地；全世界地；全面地→ globalize v.使全球化；使全世界化→ globalization n.全球化；全球性
duty n.责任;义务 →dutiful adj.尽职的；恭敬顺从的；守本分的
→dutifully adv.尽职地；忠实地；顺从地
词汇练习
一、根据句意及提示写出所缺单词
1．Things in the world are always in three f______— the gas, solid and liquid.
2．I have to get back to the library to r______ these books before it closes.
3．The j_______ is too long. We’d better take the train instead of the bus.
4．“I agree with you” he said in a low v________.
5．The plane took off and r_______ to the clouds.
orms
eturn
ourney
oice
ushed
词汇练习
6．With the rapid development of advanced technology, more and more AI products are commonly used in our e __________life.
7．The prices of electrical g_______ in this country are rising today.
8．The Silk Road is a bridge for t______ and culture exchange between China and other countries.
9．Now I have the courage to speak English in ________ ['p bl k].
10．The wind is a kind of clean energy. It doesn’t________[p 'lu t]the environment.
veryday
oods
rade
public
pollute
词汇练习
二、用括号中所给单词的正确形式填空。
1.The scientist showed us different _______ (form) of water,like steam and ice, in an experiment.
2.The _______ (globe) water cycle is important for all living things.
3.The man ________ (rush) to save his child in the pool.
4.The shop sells many useful ________ (good) for camping.
5.My sister is__________ (return)from her trip to Paris next week.
6.The train will __________ (eventual) arrive at the station, so we need to wait patiently.
returning
forms
global
rushed
goods
eventually
词汇练习
7.We heard many _______ (voice) singing together in the hall.
8.Germany has a big car __________ (industrial).
9.The bottle is _________(near) empty. There is only a little water in it.
10.The heavy rain left many ________ (drop) of water on the car windows.
voices
industry
nearly
drops
03
单元短语梳理
单元短语梳理
1. 环视；环顾；四下察看 look around
2. 变凉；冷却下来 cool down
3. 最终成为；最后处于 end up
4. 把……加入 …… add... to ...
5. 海水；咸水；盐水 salt water
6. 淡水 fresh water
7. 洗淋浴 take a shower
8. 泡澡 take a bath
单元短语梳理
9. 一场突然的暴风雨 a sudden storm
10. 在度假 be on holiday
11. 去超市 go to the supermarket
12.节约用水 save water
13.修理滴水的水龙头 fix dripping taps
14.在……起作用 play a role in…
15.幸亏；由于；因为 thanks to
16.作为结果；因此 as a result
单元短语梳理
17.靠近：接近…… (be) close to ...
18.确保；设法保证 make sure
19.贯穿历史 throughout history
20. 做实验 do experiments
21. 灌溉农作物 water crops
22.保持健康 stay/keep healthy
23. 有点儿，稍微 a bit
24.立即，马上 at once
单元短语梳理
25.饮用水 drinking water
26.流入 run into
27.考虑做某事 think about doing
28.关闭（电器） turn off
29.一滴 a drop of
30.落入…… fall into
31. ……的结尾 the end of
32.记得不要去做 remember not to do sth
04
单元句型梳理
单元句型梳理
1．在刷完牙时，她考虑和朋友们去游泳。
As she brushed her teeth, she thought about going swimming with her friends.
2.Du Yun 关掉水龙头。
Du Yun turned off the tap
3.人们净化我和添加一些化学物质给我。
People cleaned me and added some chemicals to me.
4.我有一点儿脏。
I am a bit dirty.
单元句型梳理
5.这是你的旅程终点吗？
Is this the end of your journey
6.记住不要浪费或污染我。
Remember not to waste or pollute me.
7.我们有多少瓶牛奶？
How many bottles of milk do we have
8.我们有几盒酸奶。
We have a few cartons of yogurt.
单元句型梳理
9.我们车里有很多果汁。
We've got a lot of fruit juice in the car.
10.当雨停了，我会去拿它。
I'll go and get it when it stops raining
11．水是我们生活的重要组成部分。
Water is an important part of our lives.
12.我们每天需要喝足够的水。
We need to drink enough water every day.
单元句型梳理
13.我们需要水去烹饪食物和洗碗。
We need water to cook food and to do the dishes.
14.很多地方都没有足够的干净饮用水。
There is not enough clean drinking water in many places.
短语句子练习
一、根据汉语意思完成句子，每空一词。
1．这一结论标志着这个事件的结束。
This conclusion marked_____ ____ _____ this event.
2．何不到处看看，欣赏美景呢
Why not _____ ________ and enjoy the beautiful view
3．记得说话大点声！她现在有点耳背了。
Remember to speak up! She’s ____ ___________deaf now.
4．我太累了。我一回到家就立马睡着了。
I was so tired. I fell asleep ____ ______when I came home.
at once
the end of
look around
a bit/little
短语句子练习
5．请再给我一天时间。
Please give me _____ _______day.
6．他有时在晚上八点洗淋浴。
He sometimes________ ____ _________at eight in the evening.
7．昨天你们什么时候开始做实验的？
When did you start to_____ ____________yesterday
one more
takes/has a shower
do experiments
05
单元语法梳理
单元语法梳理
提问和表达数量
一、表达数量。
对于可数名词，可以在名词前加具体数字来表示准确数量。
e.g. two cats 两只猫 five tickets五张票
有一些词能修饰可数名词，表示不确切的数量。
few几乎没有（表否定）；a few 少量，有几个（表肯定）；several几个；many许多
e.g. Few people came. 来的人很少。
A few people came. 有几个人来了。
I need several pencils.我需要几支铅笔。
Many students failed.许多学生都失败了。
单元语法梳理
对于不可数名词可以用“单位词 + of”来表示数量
a glass of water一杯水 two liters of milk两升牛奶 three cups of tea 三杯茶
有些词可以修饰不可数名词，表示不确切的数量。
little几乎没有（表否定）；a little少量；一点而（表肯定）；much很多
e.g. Little time remains.剩下的时间不多了。
Add a little salt.加一点盐。
Much effort is needed.需要付出很多努力。
单元语法梳理
有些词可以修饰可数名词，也可以修饰不可数名词
some一些; any一些 a lot of很多；大量；enough足够的；no没有任何的
e.g. I need some apples.我需要一些苹果。
Please give me some advice.请给我一些建议。
A lot of information is missing.大量信息缺失。
A lot of people like pizza.很多人喜欢披萨。
【拓展】①“enough”修饰名词时，可以放在名词前面，也可以放后面。
e.g. I don’t have enough money.我没有足够的钱。
We have enough time to finish the work.我们有足够的时间完成工作。
单元语法梳理
②当“no”修饰可数名词单数时，相当于“not a/an”。
e.g. I have no pen. = I don't have a pen.我没有钢笔。
当“no”修饰可数名词复数时，相当于“not any”。
e.g. There are no books on the desk. = There aren't any books on the desk.桌子上没有书
当“no”修饰不可数名词时，表示“没有”，相当于“not any”。
e.g. There is no water in the glass.杯子里没有水。
③some一般用在肯定句中，或者用在希望得到肯定回答（表邀请，请求等）的特殊疑问句中any一般用在否定句/疑问句中
单元语法梳理
e.g. I don’t have any money.我没有钱。
Do you have any questions 你有什么问题吗？
Can I have some fruit 我能吃点水果吗？
2. 提问数量。
（1）对于可数名词，提问数量用“How many + 复数名词”。
e.g. —How many apples do you want 你想要多少个苹果？
—I want three apples.我想要三个苹果。
—How many students are in the class 这个班有多少学生？
—There are forty students in the class.班里有四十个学生。
单元语法梳理
（2）对于不可数名词，提问数量用“How much + 不可数名词”。
e.g. —How much water is left 还剩多少水？
—Only a little water is left.只剩下一点水了。
—How much time do we have 我们还有多少时间？
—We have about two hours.我们还有大约两个小时。
语法练习
一 、单项选择。
1.—Would you like _______ juice —Yes, please .
A. any B. some C. a D. an
2. Her TV is broken. There is ______ picture.
A.no B. not C. some D. any
3.There is not _____ meat in my bowl. There is _____ chicken in it.
A. some, any B. any, some C. any, any D. some, some
B
A
B
语法练习
4.There is_____water here;but there are quite _____empty glasses.
A.little;a few B.few;little C.few;a few D.little;a little
5.There were ____ people and ____noise in the park last Sunday.
A.many;much B.much;much C.much;many D.many;many
6.—Howmany_____do you want to buy —Three.
A.meat B．potato C.cairot D.tomatoes
A
A
D
语法练习
二、根据句子需要用情态动词结构，补全句子，每空一词。
1 . Sam ate two bowls of rice yesterday. (对划线部分提问)
_____ ______ ______ did Sam eat yesterday
2 . I'd like two kilos of meat.(对划线部分提问)
_____ _____ ______would you like
3 .He eats two eggs every day.(对划线部分提问)
______ ______eggs does he eat every day
How much rice
How much meat
How many
06
话题写作讲解
话题写作讲解
假如你是Jack, 你留意到学校旁边的那条河 流污染很严重，因此你打算写一封信给市长，反 映该河流的污染问题，并呼吁大家保护该河流。
内容要点：
1.很多人把垃圾扔进河里；
2.一些工厂把废水排进河里；
3.河水很脏，河里几乎没什么鱼；
4.对我们来说，保护这条河流是很重要的；
5.请大家停止污染这条河流；
6.你的观点。
话题写作讲解
要求：
1.短文要包括所给的提示信息，可适当发挥；
2.词数80左右(短文开头及结尾部分已给 出，不计入总词数)。
Dear mayor,
I want to talk to you about the river close to our school.
________________________________________________________________________________________________________________________________________________
Best wishes.
Yours,
Jack
话题写作讲解
1. 体裁： 信件；
2. 人称： 第一人称和第三人称结合；
3. 时态： 一般现在时。
4. 写作内容：文章一开始开门见山，直接表明写信的目的，即谈论学校附近的河流污染问题。然后中间部分详细描述了河流污染的现状及原因，阐述了河流污染带来的严重后果，结尾提出解决问题的呼吁和建议，呼吁大家采取措施保护环境。
写作思路点拨
话题写作讲解
开始：表明写信的目的，即谈论学校附近的河流污染问题
中间：描述了河流污染的现状及原因，以及河流污染带来的严重后果
主题：介绍你喜欢的人
最后：提出解决问题的呼吁和建议，呼吁大家采取措施保护环境
I want to talk to you about the river close to our school.
Many people throw rubbish into the river. Also, some factories pour wastewater into it.The dirty water killed most of the fish and... ...
Let's stop polluting the river. I hope that everyone will take some measures to protect our home.
文章结构
话题写作讲解
Dear mayor,
I want to talk to you about the river close to our school.
The river is very dirty now. Many people throw rubbish into the river. Also, some factories pour wastewater into it. As a result, it becomes very dirty. I know there were lots of fish in the river before. The dirty water killed most of the fish and there are few in it now. If there is no clean river, the fish will all die one day.
I think it is very important for us to protect our environment. We can't live without fresh air and water. Let's stop polluting the river. I hope that everyone will take some measures to protect our home.
Best wishes.
Yours,
Jack
【范文赏读】
Thanks!
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