北师大版（2024）八年级下册（2024）Lesson 3 What Is Your Water Footprint?课前预习课件ppt

这是一份北师大版（2024）八年级下册（2024）Lesson 3 What Is Your Water Footprint?课前预习课件ppt，共39页。PPT课件主要包含了Homework，Grammar，Lead in ，Assessment等内容，欢迎下载使用。
Pst-reading
Fcus n Language
Express yurself
掌握核心词汇：water ftprint, recycle, shrtage, reduce, relative clause 等，理解并能运用节水相关短语。
掌握关系从句（Relative clauses）的基本用法：用 which/that 指代事物，用 wh/whm 指代人，理解其修饰名词。
理解 “水足迹” 的定义、重要性，掌握课文中减少水足迹的方法与逻辑。
When d yu use water in daily life?
I use water when I take a shwer.
I use water when I wash vegetables and ck meals.
Pre-reading
Activate and Share
Activity 1 When d yu use water? Hw can yu save water? Talk with a partner. Use the ideas belw t help yu.
We'll talk abut a super imprtant thing in ur life—water!
I use water when I brush my teeth.
Activity 1 When d yu use water? Hw can yu save water? Talk with a partner. Use the ideas belw t help yu.
I use water when I wash my car.
While-reading
Read and Understand
Activity 2 Yu are ging t read a text abut water ftprint. What d yu think a persn’s water ftprint is? Chse frm the ptins (A–C).
A the steps yu take t save water
B yur daily use f water
C the recrd f water yu wasted
What d yu think the passage will talk abut?
Activity 3 Read the text and check yur answer t Activity 2. Why des ur water ftprint matter? What can we d t reduce it?
The passage will talk abut what water ftprint is, why it is imprtant, and hw we can reduce it.
What is water ftprint?
I think water ftprint is the amunt f water we use every day, like the water we drink, take a shwer and wash clthes.
Hw t reduce it?
We can take shrt shwers, turn ff the tap when we brush teeth, and nt waste water.
Why is it imprtant?
Because there is nt enugh clean water in the wrld. If we use t much water, many peple will have n water t drink.
Activity 4 What ideas and examples des the text give abut reducing the size f ur water ftprint? Read again and cmplete the table.
Activity 5 In grups, prepare a list f questins n why and hw we shuld reduce the size f water ftprint. Then, ne asks questins and the thers answer. Use yur ntes in Activity 4 t help yu.
1. Why shuld we reduce ur water ftprint?
Because there is a serius water shrtage in the wrld. There isn't enugh clean water fr everyne, and 2.2 billin peple live withut safe drinking water. Wasting water makes the prblem wrse.
2. Why des ur water ftprint matter?
Because f glbal water shrtages. Many peple lack safe drinking water, and water waste makes the situatin mre serius.
3. What prblems will we face if we dn't reduce ur water ftprint?
The water shrtage prblem will becme wrse, and mre peple will nt have enugh clean water t use.
4. What simple changes can we make t ur lifestyle t reduce ur water ftprint?
We can never buy mre fd than we need and nt waste it, change the way we use water, cllect and reuse water, and chse prducts wisely.
5.Hw can we save water when we take a shwer r brush ur teeth?
We can take shrt shwers instead f baths, and turn the tap ff while we are brushing ur teeth.
6. What can we d with the water after washing rice, fruit and vegetables?
We can cllect it and use it t water plants r d ther things.
Activity 6 Analyse and Appreciate What is the purpse f the text: t infrm, t argue, t instruct r t entertain? Hw des the writer achieve the purpse? There is mre than ne ptin belw.
Read and Explre
A t address the reader directlyB t fcus n a different pint in each paragraphC t supprt the ideas with persnal experiencesD t cnnect each pint by answering what, why, hw questins?
Activity 7 Think and Share What will yu d t reduce the size f yur water ftprint? Discuss in grups and then present yur ideas in class.
Think and Share
I will take shrt shwers instead f baths t save water.I will turn ff the tap when I brush my teeth.I will never buy mre fd than I need and wn't waste fd.I will cllect the water after washing rice t water plants.I will chse prducts that need less water t prduce.
Vcabulary in use
Activity 8 Cmplete the text abut saving water with the crrect frm f the expressins in the bx.
• buy mre than yu need • need a lt f water t grw • water plants• make careful chices • cllect the water • turn the tap ff
turn the tap ff
cllect the water
water plants
needs a lt f water t grw
make careful chices
buy mre than yu need
一、定义（Definitin）关系从句（Relative Clause），也叫定语从句，是在句子中用来修饰名词 / 名词短语（我们称这个被修饰的名词为「先行词」）的从句。它的核心作用是：给先行词补充额外的、更具体的信息，让句子表达更完整、更精准，相当于一个「后置的形容词」。
Grammar Discvery
Relative clauses (1) (关系从句)
结构公式主句（含先行词） + 关系词 + 关系从句（补充信息）二、核心用法（Usage）（1）先行词指「事物」时可用关系词：which / that（初中阶段绝大多数情况可互换）作用：在从句中作主语或宾语，指代先行词（事物）the water that peple need t make yur clthes（that在从句中作need的宾语）
2）先行词指「人」时可用关系词：wh / whm / thatwh：可在从句中作主语或宾语 whm：只能在从句中作宾语that：可作主语 / 宾语，口语常用，可替代wh/whm补充例句（贴合本课主题）：The peple wh/that save water can reduce their water ftprint.（wh/that作主语，指代peple）
现在完成时（Present Perfect Tense）
Activity 9 We can use a clause as the bject f a sentence. Study the sentences carefully.Circle the cnnecting wrds and underline the bject clause in each ne. Then, cmplete the My Discvery bx.
1. Yur water ftprint is nt just the amunt f water which yu drink r wash with.2. Yur water ftprint includes everything related t water, even the water that peple need t make yur clthes.3. Find ut the types f fd, clthes and ther prducts that need a lt f water t prduce.
先行词（被修饰的名词） + 关系代词（which/that） + 定语从句（补充先行词的信息）
a nun / a nun phrase
wh / whm / that
which / that
Activity 10 Speaking What ther kinds f ftprint can yu think f, e.g. energy ftprint and carbn ftprint? What des it mean and hw can yu reduce it?
Writing and Speaking
Activity 10 Speaking & Writing In grups, discuss what yu can d t help slve the prblem f rubbish r anther envirnmental prblem. Create a pster t tell yur ideas t yur class.
I think it's very imprtant. Because water is a limited resurce, and 2.2 billin peple in the wrld lack safe drinking water. If we knw ur water ftprint, we can find ways t save water, reduce waste, and prtect the envirnment fr everyne.
查阅资料，了解 “碳足迹（carbn ftprint）” 的定义，用英文列出 3 个减少碳足迹的方法，下节课小组交流。
以 Hw t Reduce My Water Ftprint 为题，写一篇 80 词左右的短文，结合课文内容与个人生活实际。