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(共42張PPT)
Unit 6
Electricity everywhere
七年級
滬教版（2024）
下
核心知識梳理總結
梳理內容
01
單元單詞梳理
05
單元語法梳理
02
單元詞形變換
03
單元短語梳理
04
單元句型梳理
06
話題寫作講解
01
單元單詞梳理
單元單詞梳理
詞匯 音標 詞性和詞義
battery /'b t ri/ n.電池
electricity / lek tr s ti/ n.電;電能
apartment / 'pa:tm nt/ n.公寓套房
fridge /fr d / n.冰箱
household / ha sh ld/ adj.家庭的
*switch-off / sw t f/ adj.關閉(電燈、機器等
*tablet / t bl t/ n.平板電腦
task /ta:sk/ n.任務;活動
video game 電子游戲
單元單詞梳理
詞匯 音標 詞性和詞義
while /wa l/ n.一段時間；一會兒
yogurt / j ɡ t/ n.酸奶
against / ɡenst/ prep.緊靠；碰；撞
speed /spi d/ n.速度;速率
connect /k nekt/ v.（使）連接
*device /d va s/ n.裝置；設備
instructionn / n str k n/ 用法說明;操作指南
safety /'se fti/ n.安全；平安
rule /ru:l/ n.規則；條例
單元單詞梳理
詞匯 音標 詞性和詞義
power / pa / v.驅動;推動(機器或車輛)
landmark / l ndmɑ:k/ n.地標
climate /'kla m t/ n.氣候
amount / 'maunt/ n.數量；數額
air conditioner 空調機；空調設備
have something in common
light bulb 電燈泡
go bad 變質
run out of 用完；耗盡
單元單詞梳理
詞匯 音標 詞性和詞義
electric car 電動汽車
electrical appliance 電器
television set / tel v n/ 電視機
climate change 氣候變化
care about 關注:擔憂
join in 參加;加入
02
單元詞形變換
單元詞形變換
electricity n.電;電能→electric adj.電的；用電的→electrical adj.與電有關的；
apartment n.公寓套房→apartmental adj.公寓的；房間的；分戶的
household adj.家庭的→householder n.戶主；家長；住戶
task n.任務;活動→taskless adj.沒有任務的；空閑的
→ taskmaster n.工頭；監工
→tasking n.任務分配；任務安排（動詞 task 的現在分詞）
yogurt n.酸奶→yogurted adj.加酸奶的；制成酸奶的
speed n.速度;速率→speedy adj.迅速的；快的；敏捷的
單元詞形變換
connect v.（使）連接 → connection n.連接；聯系；關系；連接點
→connected adj.連接的；有關系的；有聯系的
device n.裝置；設備 →deviceless adj.無設備的；沒有裝置的
instruction n.用法說明;操作指南→ instructive adj.有益的；教育性的
→instructor n.指導者；教師；講師
safety n.安全；平安→safe adj.安全的；平安的
→safely adv.安全地；平安地
rule n.規則；條例 →ruler n.統治者；直尺 →ruleless adj.無規則的；無約束的
單元詞形變換
power v.驅動;推動 → powerful adj.強大的；有影響力的
→powerless adj.無力的；無動力的
→powerfully adv.強大地；有力地
landmark n.地標 →landmarkless adj.無地標性的；無標志性的
→landmarkable adj.可成為地標性的；值得紀念的
climate n.氣候 →climatic adj.氣候的；與氣候有關的
amount n.數量；數額 → amountless adj.無數量的；無限量的
詞匯練習
一、根據句意及提示寫出所缺單詞
1．Cathy checked her paper c_________ so that she could get good grades this time.
2．You can go, but you s_______ say goodbye to Mum.
3．I’m a robot. My energy comes from e__________ .
4．We can put the vegetables in the f _______ to keep them fresh.
5．The workers are c___________the telephone to the computer.
arefully
hould
lectricity
ridge
onnecting
詞匯練習
6．Torches (手電筒) can give us light with the help of b________.
7．T_____ off the rice cooker if the pot is empty.
8．Please be sure to pay a visit to our a_________ when you come to our university next month.
9．In order to protect the environment, the government is encouraging people to recycle their__________ ['ha sh ld] rubbish.
10．Dolphins can communicate with each other by __________ [pr dju s ] a great variety of noises.
atteries
urn
partment
household
producing
詞匯練習
二、用括號中所給單詞的正確形式填空。
1.We must _________ (connection) the cables carefully to set up the new light.
2.I often prepare some extra _________ (battery) for my camera when travelling.
3.The light isn't as bright as usual.I think it's _________ (run) out of power.
4.The ____________ (electricity) fan is very helpful on hot days.
5.The food in the fridge _______ (go) bad because the power was off for too long.
6.Following _________ (safe) rules can protect you from accidents.
went
connect
batteries
running
electric
safety
詞匯練習
7.I am looking forward to _______ (join) in Earth Hour next year.
8.The factory uses large _________ (amount) of electricity to power its machines.
9.Read the ___________ (instruct)on how to use the television set correctly.
10.One turn of the wind turbine__________ (power) a house for around 29 hours.
joining
amounts
instructions
powers
03
單元短語梳理
單元短語梳理
1.嘗試做某事 try doing sth.
2.聽起來有趣 sound interesting
3.決定做某事 decide to do sth.
4.結果是 turn out (that)
5.手洗衣服 wash clothes by hand
6.電動汽車 electric car
7.以……的速度 at the speed of …
8.盡力做某事 try one's best to do sth.
單元短語梳理
9.利用 make use of
10.根據 according to
11.省電 save electricity
12. 電器 electrical appliance
13.關燈 switch off the lights
14.打開空調 turn on the air conditioner
15.讓冰箱門開著 leave the fridge door open
單元短語梳理
17. 保護我們的星球 protect our planet
18.關注；擔憂 care about
19.氣候變化 climate change
20.參加；加入 join in
21.有作用；有影響 make a difference
22.數以千計；成千上萬 thousands of
23.有相同的特征 have something in common
24.電燈泡 light builb
單元短語梳理
25.空調機 air conditioner
26.電子游戲 video game
27.用完，耗盡 run out of
28.變質 go bad
29.太陽能 solar power
30.水能 water power
31.關掉 turn off/ switch off
32. 想象做某事 imagine doing sth
04
單元句型梳理
單元句型梳理
1.用完電腦要關機。
Turn off your computer when you're not using it.
2.—為什么你覺得電對我們這么重要
Why do you think electricity is important to us
—因為電使我們的生活更舒適。
Because electricity makes our lives easier.
3. 然而，事實證明沒有電生活會很難。
However it turned out that it was very hard to live without electricity.
4.你能告訴我你所知道的關于電的事實嗎
Can you tell me what you know about electricity
單元句型梳理
5.并且我們千萬不要用濕手去觸碰任何電器。
And we mustn't touch any electrical appliances with wet hands.
6.他們在試圖證明小小的改變可以給我們的星球帶來很大的影響。
They are trying to show that small changes can make a great difference to our planet.
7.我們玩了一會兒游戲。
We played games for a while.
8.我們的平板電腦沒電了。
Our tablet ran out of battery.
單元句型梳理
9.因為沒有電，所以在冰箱里的一些東西很快變質了。
Since there was no electricity, some things in the fridge quickly went bad
10.在暴風雨期間我們禁止出外。
We mustn't go outdoors during a storm.
11.我可以試一試嗎？
May I try
12.我們需要在打開設備前確保電纜正確連接。
We need to make sure that cables are connected correctly before we turn on the device.
單元句型梳理
13.你必須要把它還給我因為它是我最喜歡的尺子。
You must give it back to me because it's my favourite ruler.
14.當你離開家時，關燈。
Turn off the lights when you leave home.
15.在窗戶開著的時候，不要打開空調。
Don't turn on the air conditioner when the window is open.
短語句子練習
一、根據漢語意思完成句子，每空一詞。
1．當我們在黑暗的房間里打開燈時，房間里的一切都會立即亮起來。
When we _____ ____ a lamp in a dark room, everything is lit up in the room at once.
2．人們在街上應該遵守交通規則。
People should _____ _______ ______on the streets.
3．一旦被建成，這座發電站將向所有鄰近的城鎮和村莊供電。
Once completed, this _______ _______ ________ will supply all the neighbouring towns and villages with .
turn on
obey traffic rules
power station electricity
短語句子練習
4．我和我最好的朋友有著某些相同之處。
My best friend and I _____ ____ __________ something .
5．我手機里的電池沒電了。
The battery in my phone has ______ _____.
6．在未來，汽車很可能會使用水或太陽能為其提供動力。
In the future, cars will probably use water or solar ________ to _______them.
7．他已經來拜訪過兩次了，我們每次都閑談一會兒。
He has come round twice already and we chatted ____ ___ _______ each time.
have in common
run out
energy power
for a while
05
單元語法梳理
單元語法梳理
情態動詞can、may、must的相關用法
1. 情態動詞概念：
情態動詞具有一定的詞義，但不能獨立存在，須與動詞原形一起構詞謂語，表示說話人對某一 動作或狀態的看法或主觀設想，如意愿、需要、可能或懷疑等。
情態動詞有時態的變化，但沒有人稱和數的變化（have to 除外）。
2. 一些常見情態動詞的用法：
（1）情態動詞 can 的用法
單元語法梳理
表示一種能力： I can speak English.我會說英語。
表示“可以”,相當于 may.May/can I ...... You can ask me for help.I can speak English.
can't 表不可以，不能夠。 He can’t speak French.他不會說法語。
can’t be 表示不可能(對事情的否定推測） It can’t be true.這不可能是真的。
could:比 can 更加委婉，也可用于 can 的過去 式。could 引導一般疑問句，用 can 回答。 Jack asked his mom whether he could go out tonight. 杰克問他媽媽今晚是否可以出去。
---Could I go out tonight 我今晚可以出去嗎？
---Yes,you can./---No,you can't.
是的，你可以/---不，你不能。
單元語法梳理
（2）情態動詞 may 的用法
1.表示“可以” May I come in 我可以進來嗎？
2.表推測：可能 That boy may be Jack.But I'm not sure.那個男孩可能是杰克。但我不確定。
3. might:比 may 更加委婉，也可用于 may 的過去式，也可表推測。 Tom might know the answer.湯姆可能知道答案。
【拓展】 may,maybe,may be 的用法區別
maybe 為副詞，不能做句子謂語，常放在句首或者主謂之間。
如：Maybe she will come tomorrow.也許她明天會來。
may be 構成謂語結構“可能是”
如：She may be a teacher.她可能是一名教師。
單元語法梳理
（3）情態動詞 must 的用法
1.must 表示“必須”主觀意愿， have to 表“不得不”客觀因素 I must go home now.我現在必須回家了。
It's raining hard outside,so we have to stay at home.
外面雨下得很大，所以我們不得不呆在家里。
2.表推測：‘一定’,表肯定推測。(重點考點) That book must be Mary's.Her name is on it.那本書一定是瑪麗的。她的名字在上面。
3.must 引導的一般疑問句。 否定回答：No,you needn't/don't have to. 肯定回答：Yes,you must./have to. Must I arrive at the airport before 5 p.m
Yes, you must./No, you needn’t.
我必須在下午5點之前到達機場嗎？
是的，你必須/不，你不用。
4.注意：mustn't 表示“禁止” You mustn't smoke here.你不能在這里抽煙。
語法練習
一 、單項選擇。
1.All passengers _____ go through safety check before they take a plane.
A.can B.may C.must D.could
2.—You look very pretty if I _____ say so.
—Thanks a lot for saying that.
A.must B.may C.will D.have to
3.You _____ walk to close to the edge of the hill because you might fall and hurt
yourselves.
A.mustn't B.must C.can D.needn't
C
B
A
語法練習
4.—Do you think that Kobe will be elected as the MVP this year —It _____ him.He has retired(退役)since April 13.
A.can't be B.mustn't be C.must be D.can be
5.—Mum, _____I play football this afternoon —Sure,but you ______finish your homework first.
A. may;could B.can;must C.can;mustn't D.may;can't
6.Please don't make so much noise.I _____ hear the speaker very well.
A.needn't B.mustn't C.can't D.shouldn't
A
B
C
語法練習
二、根據句子需要用情態動詞結構，補全句子，每空一詞。
1.邁克，你千萬不要玩火。
Mike, you ________________ fire.
2.我可以問你一個問題嗎
_________ I _____ you a question
3.你上課不要接電話。
You ______________ the telephone in class.
4.她必須為她的自行車找個適當的地方.
She __________ a right place for her bike.
mustn’t play with
May/Can ask
mustn’t answer
must find
06
話題寫作講解
話題寫作講解
假設你是李明，你們家很注意節約用電，并 且很關注用電安全常識。經過和家人討論，你們 制定了一套有關用電安全的家規。請根據下面 表格中的要點提示，寫一篇不少于70詞的短文 介紹 一 下該家規。
必須 禁止
不用電器的時候關掉它們 在爐具旁放紙張
保持電線干燥 隨處扔電池
取完東西后記得關上冰箱門 用濕手去碰電器
___________________________________________________________________________________________________________________________________________________________________________________________________
話題寫作講解
1. 體裁： 說明文；
2. 人稱： 第一人稱復數；
3. 時態： 一般現在時。
4. 寫作內容：文章一開始首先強調了電在日常生活中的重要性，接著引出作者家庭制定的用電安全規則，并告知讀者將有六條規則介紹給大家。然后中間部分詳細具體闡述了這六條用電安全規則。結尾總結全文，強調遵循這些規則的好處，呼吁節約用電。
寫作思路點撥
話題寫作講解
開始：強調電的重要性，引出作者家庭制定的用電安全規則
中間：詳細具體闡述了這六條用電安全規則
主題：介紹你喜歡的人
最后：結尾總結全文，強調遵循這些規則的好處，呼吁節約用電。
Electricity is very important in our daily lives. In my family, we make some rules... ...
First, ... Second,... Third, ... Fourth, ...
Fifth,...And the last, don't touch electrical appliances with wet hands.
Let's stop polluting the river. I hope that everyone will take some measures to protect our home.
文章結構
話題寫作講解
Electricity is very important in our daily lives. In my family, we make some rules about how to use electricity safely. Here are six of them.
First, switch off the electrical appliances when we don't use them. Second, we mustn't put paper beside a cooker. Third, we must keep the wire dry. Fourth, we mustn't throw batteries everywhere. Fifth, remember to close the door of the fridge after we take things out of it. And the last, don't touch electrical appliances with wet hands.
If we follow these rules, we will be safe and we can save a lot of electricity.
Thanks!
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