沪教牛津版（2024）七年级下册Unit 4 Save the trees.优秀课件ppt

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Lean smething abut the Amazn rainfrest.
Learn abut tea planting histry and tea culture f Chinese tea.
Write a plan fr a green prject.
Learning bjects
Where is the largest rainfrest in the wrld?
1. Where is the Amazn rainfrest?____________________________________________2. Why d many living things lse their hme?____________________________________________3. What shuld we d accrding t the article?____________________________________________
It is in Suth America.
Listen t the tape twice, and answer the questins.
Because f defrestatin.
We shuld prtect the Amazn rainfrest.
Befre yu read
Pre-reading
Read the article belw abut the Amazn rainfrest.
( )1. The wrd “It” in Line 2 refers t ________.A. the Amazn rainfrest B. Suth AmericaC. the wrld D. Amazn Basin( )2. Hw many cuntries des the Amazn rainfrest spread acrss?A. Five. B. Six. C. Eight. D. Nine.
Reading task
Read the article and chse the best answers.
( )3. Which f the fllwing is true abut the Amazn rainfrest?A. The Amazn rainfrest is the secnd largest rainfrest in the wrld.B. The Amazn rainfrest cvers fur and a half millin square kilmetres f the Amazn Basin.C. The Amazn rainfrest is very imprtant.D. The number f animals is increasing.
( )4. What is the purpse f the passage?A. T tell us abut where the Amazn rainfrest is.B. T tell us abut many living things lse their hme.C. T tell us smething abut animals, birds and insects.D. T tell us we shuld d ur best t prtect the Amazn rainfrest.
Hw large is the Amazn rainfrest?It cvers five and a half millin square kilmetres f the Amazn Basin and spreads acrss nine cuntries.Why is the Amazn rainfrest very imprtant?Because it is hme t thusands f animals, birds and insects.
Answer the fllwing questins.
What des “defrestatin” mean?It means destrying frests by cutting dwn the trees.What is the result f defrestatin?Many living things lse their hmes and the number f kinds f animals, birds, insects and trees in the wrld is decreasing.What shuld we d?We shuld d ur best t prtect the Amazn rainfrest.
The Amazn rainfrest is the (1)_______ rainfrest in the wrld.It cvers 5.5 milln square kilmetres f the (2)_________.It spreads acrss (3)______ cuntries.The rainfrest is imprtant because it is (4)________ t many living things.The rainfrest is in danger because f (5)_____________ (the cutting dwn f trees).
Amazn Basin
defrestatin
Clse yur bks and review the article.
1. It cvers 5.5 millin square kilmetres f the Amazn Basin …它覆盖了亚马逊流域550万平方千米的面积……【用法】hundred/thusand/millin/billin前面有数字时后面不加s 和f，前面没有数字，s和f一起用。
Language pints
【即时训练】选择最佳选项填空。There are abut _____ peple n the square.A. tw thusand B. tw thusandsC. thusands f D. tw thusand f
2. The Amazn rainfrest is very imprtant because it is hme t thusands f animals, birds and insects.亚马逊热带雨林非常重要，因为它是无数动物、鸟类和昆虫的栖息地。Many living things lse their hmes because f defrestatin. 因为滥伐森林，很多生物失去了家园。
【辨析】because 和because f 都意为“因为”。注意其不同的用法：because 是连词，后面接句子，构成表示原因的状语从句；because f 是介词短语，后面接名词或动词-ing 形式，在句中常用作状语。因为下大雨，我今天早上迟到了。 I was late this mrning because it rained heavily.= I was late this mrning because f the heavy rain.
【即时训练】选用because或because f填空。1. He did better and better in English __________ his hard wrk.2. She can’t g with us _________ she is ill.3. Many peple feel sick ___________ the bad weather.4. Li Ta ’s mther was angry _________ he brke the windw.
3. As a result, the number f kinds f animals, birds, insects and trees in the wrld is decreasing. 结果，各类动物、鸟类、昆虫和树木的数量正在减少。【用法】the number f 意为“……的数量”，后面接可数名词的复数形式，它作主语时，谓语动词要用单数形式。The number f the students in Class Tw is frty-five.二班的学生人数是45。
【即时训练】选用the number f或a number f填空。1. ______________ visitrs t the Cantn Twer is increasing (增长).2. ____________ visitrs visit the Cantn Twer every day.
The number f
4. We must d ur best t prtect the Amazn rainfrest.我们必须尽最大的努力保护亚马逊雨林。【用法】d ne’s best t d sth 意为“尽力做某事”。We shuld try ur best t finish the hmewrk.我们要尽力完成作业。【即时训练】根据中文意思完成句子。他尽力做得更好。 He __________ _____ ______ _____ d it better.
tries/des his best t
1. Can yu swim a________ the river by yurself?2. My huse is big. It c________ 300 square metres.3. There are many beautiful b________ flying in the sky.4. The little by can cunt the n________ frm ne t ne hundred.5. It’s i__________ fr us t prtect trees.
一、根据句意及首字母提示写出所缺单词。
1. 我每天都有很多电子邮件要看。I have ____ _________ ____ emails t read everyday.2. 这些书的数量是多少？What is _____ __________ ____ the bks?3.我们应该尽力保护我们的地球。 We shuld ____ ____ _____ ____ ________ ur Earth.4. 他每天跑步三十分钟，结果他体育考试得了满分。He runs fr thirty minutes every day. ____ ____ ______ , he gt full marks in the P.E. exam.
二、根据中文意思完成句子。
a number f
the number f
try ur best t prtect
As a result
2. 很多动物因为环境污染失去了家园。Many animals ______ ________ _______ because f envirnmental pllutin.3. 每天成千上万的旅游者来到中国参观长城。 __________ _____ visitrs cme t China t visit the Great Wall every day.4. 因为大雨，他没能及时赶到火车站。He culdn’t arrive at the train statin n tme _________ _____ the heavy rain.
lst their hmes
Thusands f
because f
Pst- reading
What else d yu knw abut the Amazn rainfrest?
Pst reading
Further Thinking
What can peple d t prtect the envirnment in rder t save the rainfrest?
Key phrases: thusands f, because f, as a result, the number f, d ur best t d, cut dwnbe hme t
Planning green activities
D yu want t imprve yur schl envirnment?
In this prject, yu will write a plan fr a green prject.
The grup leader will take ntes f the discussin and each grup will present a reprt n yur ideas fr the green prject.
In grups, talk abut hw t make ur schl “greener”.
Green ideas frm my grup
Here are sme sample ntes.
Design an indr garden r a rf garden
Plant mre trees and flwers
Reduce, reuse, recycle
Stp cutting dwn trees
Make a plan f what yu will d fr the green prject.Decide each grup member’s jb.Find in frmatin.
Make a plan
Read the passage and answer the fllwing questins.
Culture crner
D yu like drinking tea? Where des tea cme frm? Accrding t an ld stry, wh discvered tea? What did Lu Yu d during the Tang Dynasty?
Wrld Fd DayWrld Fd Day is an internatinal day celebrated n Octber 16th. It is very imprtant fr us t save fd because we can’t live withut it. But these days, many peple waste fd. This is really bad. We shuld always remember that fd is a gift frm nature, and there are still a lt f peple in the wrld wh dn't have enugh t eat. S, t make sure we dn't waste fd, first, we shuldn't ck mre than we can finish.
Extensive reading
Secnd, we shuld make sure we finish everything n ur plates at dinner. Third, when dining ut, we shuld take away ur leftvers. Remember frm nw n, never waste fd. Let' s take actin!
1. Recite new wrds and expressins .2. Finish the MP exercise paper.
We shuld plant mre and mre trees in rder t live better and mre healthy in the future.