Unit5 Lesson2 Do our part（课件）英语新教材北师大版八年级下册

这是一份初中英语北师大版（2024）八年级下册（2024）Lesson 2 Do Our Part教学演示课件ppt，共33页。PPT课件主要包含了Homework，Grammar，Lead in ，LED lights，Assessment等内容，欢迎下载使用。
Pst-listening
Fcus n Language
Express yurself
掌握与节约用电相关的词汇和短语（如 turn ff, , LED lights 等），能听懂并谈论节约用电的方法。
树立节约用电、保护环境的意识，理解 “d ur part” 的含义并愿意付诸行动。
能通过听力捕捉对话主旨和关键信息，能运用感叹句表达情感，能完成节约用电主题的短文写作。
We use s much electricity every day at hme and at schl. Is it imprtant t save electricity? Why？?
Yes! Because we can prtect the envirnment.
Pre-listening
Activate and Share
Activity 1 What can yu d t save electricity at hme and at schl? Talk with a partner. Use the ideas belw t help yu.
turn the lights ff → 关灯
clse windws → 关窗
turn yur cmputer ff → 关电脑
replace ld light bulbs with LED lights → 用 LED 灯替换旧灯泡
What can we d t save electricity at schl? 
We need t turn ur cmputer ff when we’re nt using it.
That’s a gd idea! And we can als replace ld light bulbs with LED lights. 
While-listening
Listen and Explre
Activity 2 Listen t a dialgue between Kate and Je.
What prblem are they talking abut?
They are talking abut the high electricity bill / t much electricity use.
Activity 3 Listen again and cmplete Kate and Je’s green slutins.
What slutins d they mentin?
Turn ff the lights
turn cmputers ff
washing machine up
higher when we use air cnditining in the summer t
Activity 4 What can yu d t save electricity at hme? Act ut the dialgue using yur ntes in Activity 3.
Our electricity bill is very high. We’ve used s much electricity!
Oh, dear! We need t d smething. First, let’s turn ff the lights when we’re nt using them.
Gd idea! Then we can replace the ld light bulbs with LED lights.
And we shuld remember t turn cmputers ff when we finished ur wrk.
Als, let’s fill the washing machine up befre we use it.
Finally, let’s set the rm temperature higher when we use air cnditining in the summer t.
Perfect! These changes will help us save electricity.
Activity 5 What else can yu d t save electricity at hme? Have yu dne yur part? Talk with a partner.
Turn ff the TV when n ne is watching it.Use a fan instead f air cnditining when it’s nt t ht.Dn’t leave the fridge dr pen fr t lng.Use natural light instead f turning n the lights during the day.
Vcabulary in use
Activity 6 Write a list f tips fr saving electricity at hme and at schl with the expressins given.
1. We shuld turn ff cmputers when we leave the classrm.
2. We can replace ld light bulbs with LED lights t save energy
3. Remember t turn ff the lights when yu’re nt in the rm.
4. Let’s d ur part frm nw n t prtect the envirnment.
5. We can set the rm temperature high when we use air cnditining in the summer.
Grammar Discvery
Activity 7 Exclamatins （感叹句）
一、定义（What is an Exclamatin?）感叹句是用来表达强烈情感（如惊讶、喜悦、赞叹、愤怒、惋惜等）的句子，句末通常用感叹号 !，语气比陈述句更强烈。二、核心结构与用法1. What 型感叹句结构公式：What + (a/an) + 形容词 + 可数名词单数 + (主语 + 谓语)!
What + 形容词 + 可数名词复数 / 不可数名词 + (主语 + 谓语)!特点：强调名词，突出对事物的赞叹或惊讶。例句：What a high electricity bill (it is)!（多么高的电费啊！）What useful LED lights (they are)!（多么实用的 LED 灯啊！）
2. Hw 型感叹句结构公式：Hw + 形容词 / 副词 + (主语 + 谓语)!特点：强调形容词或副词，突出对程度、状态的感叹。例句：Hw high ur electricity bill is!（我们的电费真高啊！）Hw imprtant it is t save electricity!
三、用法要点（Key Rules）主语和谓语可省略：在口语中，主语和谓语常被省略，句子更简洁。What a gd idea! = What a gd idea it is!Hw cl! = Hw cl it is!a/an 的使用：后面接可数名词单数时，要加 a/an：What a useful tip!后面接可数名词复数 / 不可数名词时，不加 a/an：What useful tips! / What imprtant wrk!
Activity 8 Write a shrt pst fr an nline English frum t tell readers what yur family/schl/class can d t save electricity. Use exclamatins t shw yur feelings.
There are a lt f ways t save electricity. Our family can d ur part in the fllwing ways. First, we turn ff cmputers when we are nt using them. What a simple but useful tip! Secnd, we replace ld light bulbs with LED lights. Hw bright and energy-saving they are! Third, we set the rm temperature higher when we use air cnditining in the summer. It’s s cl t prtect the envirnment! Let’s d ur part frm nw n!
I think “d ur part” means taking small actins t help prtect the envirnment. It is imprtant because every small effrt can make a big difference t ur earth.
制作一张 “节约用电” 主题海报，图文结合，张贴在教室 / 家中。