牛津译林版 (2019)必修 第三册Unit 1 Nature in the balanceReading图文ppt课件

这是一份牛津译林版 (2019)必修 第三册Unit 1 Nature in the balanceReading图文ppt课件，共40页。PPT课件主要包含了Reading，P4 A1， million，about 6400，about 17，over 400，over 20，P4 A2，brazil nut，water lily等内容，欢迎下载使用。
Accrding t the text’s title, can yu predict what aspects the text may talk abut?
Fast Reading
Intrductin t the Amazn rainfrest
Read and write the main idea f each paragraph.
Basic infrmatin abut the rainfrest
Plant bidiversity:levels f the rainfrest(plants)
Animal bidiversity:fd chain(birds and animals)
The rainfrest’s value t the human race; threats t the rainfrest
________________________________________________________________________________________________________________________________________
mre than 1300
mre than 40000
8 cuntries
What is the purpse f using s many figures?
T prvide specific and accurate infrmatin
T supprt the statement and make the statement mre persuasive and cnvincing;
T make peple realize the imprtance f the rainfrest in a direct way
CarefulReading
Read para 1 carefully and find the tpic sentence
As the largest rainfrest in the wrld, it plays a significant rle in maintaining the fine balance f the Earth’s ecsystem.
Read Para 2 and find the basic infrmatin f the Amazn rainfrest.
lcatin__________________size______________________rigin f its name____________________
8 cuntries and ne verseas regin f France
arund 6 millin square kilmeters f frest
The Amazn riverarund 6400 km in length
What plants des para 3 intrduce?
the tps f the tallest trees
shrter plants with large leaves
the mass f leaf litter
twering ancient hardwds
a system f rts beneath the grund
Read Para 3 and pint ut the different levels f the rainfrest.
Read para 4 and cmplete the fllwing chart abut the fd chain
At least 87 species, including frgs
Micrrganisms
Leaves and fruit
What is the functin f the rainfrest t us in para 5?
prduce xygen
using metaphrs
1.lungs f the planet 2.a treasure huse f species
agriculture
cattle farming
What is the majr threat t the rainfrest?
human activities
The authrities shuld enfrce revelant laws n prhibiting the illegal cutting f trees;The authrities shuld set up nature reserves and increase the number f frest rangers(护林者) t guard the rainfrest;
What can we d t prtect the Amazn rainfrest?
The ways t prtect the Amazn rainfrest
The surrunding cuntries shuld plant man-made frests t slw dwn the disappearance f the Amazn rainfrest;
The lcal gvernment shuld adjust ecnmic structure by develping spin-ffs(副产品) and turism t earn prfits;
Alternative Hmewrk
1.T raise the awareness f prtecting the Amazn rainfrest,yu are invited t make a speech in the United Natins.Please wrk with yur grup members and write the speech tgether.
1. It is my great hnr t have a chance t make a speech has a crucial influence n3. be f significance t3.be hme t4. It is time fr sb t d sth.5. make jint effrts t d sth
2.Mangshan is the largest natinal frest park in Hunan Prvince. Please write a brief intrductin t Mangshan accrding t the aspects f the Amazn rainfrest.
tips:please uses mre wrds frm the bk
Language Pints
1. The wrld we live in is full f natural wnders. The dcumentary script belw describes the Amazn rainfrest, which is hme t a wide range f wildlife.
be hme t ...
a wide range f...
我们居住的世界充满了自然奇观。下面的纪录片脚本描述了亚马孙雨林，这里是各种野生动植物的家园。
2. Welcme t the jungle, a huge sea f green alive with the sunds f animals. (L1)欢迎来到丛林，这是一片绿色的海洋，处处都可以听到各种动物的声音。(1) a huge sea f (2) be alive with
eg. I lked dwn and saw a sea f smiling faces.As summer appraches, the pnd is alive with frgs.
我往下看,看到一张张笑脸。
夏天临近，池塘里都是青蛙。
大量的，许多的；成片的
alive adj. 活着的 一般作表语或作前置定语修饰名词，也可作补足语；living adj. 活着的 一般作前置定语，也可置于名词后或作表语（the living表“活着的人”）； living n. 生计，生活方式；live /laiv/ adj. 活着的，现场直播的;lively adj. 活泼的，生动的。
I fund the snake _________.The ________ are mre imprtant t sciety than the dead.Last night there were millins f peple watching the Spring Festival Gala _________ n TV.Yung students are usually ___________.
3. As the largest rainfrest in the wrld, it plays a significant rle in maintaining the fine balance f the Earth’s ecsystem. (L2)
eg. The fd yu eat every day plays a significant rle in yur health.
play a significant rle in
作为世界上最大的雨林，它在维系地球生态系统的良好平衡上扮演着重要的角色。
你每天吃的食物在你的健康方面起着重要的作用。
在...(做)方面起着重要的作用
the lungs f the planet, rainfrest plays imprtant rle in (prduce) the xygen.He is watching a (live)bradcast f the ftball game. (see) frm the tp f the twer, I see a huge sea trees.The pl was alive gldfish. We shuld have healthy eating habits and (live) habits.
(1) frm which在句中引导 从句。
4. The Amazn River, frm which the rainfrest gets its name, is clse t 6,400 kilmetres in length—rughly 100 kilmetres lnger than the Yangtze River. (L7)
The Amazn River, which the rainfrest gets its name frm, is clse t 6,400 kilmetres in length...
介+which/whm
The wman____ _______ yu spke is a teacher.The city_____ _______he lives is far away.It was a crisis(危机) _____ _______ she didn’t prepare.It's a kind f tree ______ ______ we can get a lt delicius fruit.The man is my English teacher I chatted just nw.
in which
fr which
frm which
with whm
4. The Amazn River, frm which the rainfrest gets its name, is clse t 6,400 kilmetres in length—rughly 100 kilmetres lnger than the Yangtze River. (L7)亚马孙雨林得名于亚马孙河，亚马孙河长约6,400千米，比长江还长大约100千米。
With an area f arund 6 millin square kilmetres, the Amazn rainfrest is mre than half the size f China.The Amazn River, frm which the rainfrest gets its name, is clse t 6,400 kilmetres in length—rughly 100 kilmetres lnger than the Yangtze River.
倍数+ n. (the length/height/size/weight) f 倍数+as +adj./adv.(lng/high/large)原级+ as倍数-1 + adj./adv.的比较级 than …
地球是月球的49倍大。
The earth is 49 times the size f the mn.The earth is 49 times as large as the mn.The earth is 48 times larger than the mn.
The new library is twice ________ (large) than the ld ne.The rpe is three times the (lng) f my ft. My yunger brther is half heavy as me.
(1) Abve that is the 为 句。表地点、方向的 、 置于句首时，要发生完全倒装(将 放到主语之前)。
5. Abve that is the mass f leaf litter n the dark frest flr. (L16)
在昏暗的雨林地面上，一层厚厚的枯枝落叶堆在上面。
eg .Amng these peple my friend Jim.
(2) mass n. 大量 adj. 大批的，广泛的
【搭配】the mass f … a mass f / masses f...
Our class (make) up f 50 students. The Amazn rainfrest is hme a (vary) f wildlife. Behind the (twer) trees (be) a small and lw huse. It is (believe) that he did such flish behavir.
unbelievable
(1) while在句中引导 从句。
6. While a significant number f jaguars survive here, they are nly ne element f this frest’s fd chain. (L23)
eg .尽管他才四岁，他懂的很多。
While he is nly 4 years ld, he knws a lt.
While I was angry with her, I didn't lse my temper. I was reading bks while my mm was cking. Sme studnets like math while thers like Chinese.They walked n in silence fr a while.
(2) a number f
尽管许多的美洲豹生活在这里，但它们只是雨林食物链的一个要素。
(3) survive v. 生存;幸存 → n. 幸存→ n. 幸存者→ adj. 幸存的