初中英语仁爱科普版九年级上册Topic 2 All these problems are very serious.获奖课件ppt

这是一份初中英语仁爱科普版九年级上册Topic 2 All these problems are very serious.获奖课件ppt，文件包含Unit2Topic2AlltheseproblemsareveryseriousSectionC课件pptx、p39-1amp3、闪电Lightning_mp3等3份课件配套教学资源，其中PPT共29页， 欢迎下载使用。

Learning bjectives
We learn: 1. Sme wrds: hle, frm, rise 2. Sme phrases: take away,refer t 3. Sme sentences: All these prblems are very serius, s wemust d smething nw. 4. Talk abut the harm f pllutin.5. Cmbine the key pints t frm a shrt passage.
What’s it abut?
(1)________ f us knws hw t stp the bad behavir.(2) I kncked n the dr but ___________ answered.(3) Sme f these bks are better than__________.(4) She was driving the car with ne hand and wiping the windw with the _______.(5) They are beautiful but I am lking fr ___________ useful.
Fill in the blanks using smething, anything, thers, nbdy, everyne, anybdy, everywhere, nne, ther.
(6) Is there ___________ yu can d t help her?(7) There’re 5 000 peple living here and almst ______ ___has his/her wn car.(8) He’s cleverer than ____________ I knw.(9) I’ve lked ________ __ but I can’t find it.
In ur daily life, we shuld face mre envirnmental prblems. Can yu say smething abut them?
In big cities,cars and buses have plluted the air.
Factries have als plluted the land and the water.
Peple have cut dwn millins f trees.
Air pllutin is destrying zne.
CO2 carbn dixide increase a lt, frm a “blanket”, the heat frm the sun can’t escape
take away拿走xygen [ˈɒksɪdʒ(ə)n] n.氧气hle [həʊl] n.洞,坑zne layer [ˈəʊzəʊn'[ˈleɪə] ] 臭氧层radiatin [reɪdɪˈeɪʃ(ə)n] n.放射，放射物
directly [dɪ'rektli] adv.直接地carbn dixide [ˈkɑːbən] [daɪˈɒksaɪd] 二氧化碳frm [fɔːm]  v.出现blanket [ˈblæŋkɪt] n.毛毯，毯子
escape[ɪ'skeɪp]n.&v.逃跑；逃脱 rise[raɪz]v.上升，上涨the greenhuse effect温室效应refer[rɪˈfɜː]提到，涉及，有关
the greenhuse effect
Read and understand.Lk at the fllwing pictures and predict the main idea f the passage.
fewer trees
factry pllutin
traffic pllutin
the zne layer
mre carbn dixide
Chse suitable titles fr Paragraphs 2-6. Then write it dwn in frnt f each paragraph.
A. Traffic pllutin B. Factry pllutin C. Fewer trees D. The zne hle E. Mre carbn dixide
The earth is 4.6 billin years ld. We humans have lived n the earth fr nly 35 000 years, but during this perid, we have changed ur planet a lt in many ways. Sme things we’ve dne are very gd fr the earth while sme are bad.________ _ All ver the wrld, peple have cut dwn millins f trees. When it rains r when the wind blws, the earth is taken away. Frests have becme deserts, s many kinds f animals and plants are disappearing.
Fewer Trees
_____ _______ In big cities, cars and buses have plluted the air. Nw many peple in cities have health prblems.____ _________Factries have als plluted the land and the water. As a result, many rivers and lakes are nw dead.
Traffic Pllutin
Factry Pllutin
_____________ Arund the earth, there’s a special kind f xygen called “zne”(O3). It is imprtant t the earth. But nw air pllutin is destrying it and making a very big hle in the zne layer. T much harmful radiatin frm the sun passes thrugh the hle and reaches the earth directly. This is very dangerus because this kind f radiatin can cause cancer.
The Ozne Layer
______________ __ Carbn dixide (CO2) in the air has increased a lt. It mainly cmes frm burning il, cal and wd. This has frmed a blanket arund the earth. The heat frm the sun can’t escape s the temperature is rising. This is called “the greenhuse effect”. It causes the level f the ceans t rise and the climate f the earth t change. All these prblems are very serius, s we must d smething nw.
Mre Carbn Dixide
Read 1a and cmplete the fllwing tasks.
2.What des ur planet mean here? A. The sun. B. Mars. C. The mn. D. The earth3.In the passage, blanket refers t ____. A. carbn dixide arund the earth B. the zne layer in the sky C. the frests arund the wrld D. pllutin all ver the wrld
4.The wrd it in Paragraph5 refers t ____. A. CO2 B. O3 C. O2 D. H2O5. What is the best title fr this passage ? A.Envirnment Prblems B. Pllutin n the Earth C. Hpe fr the Future D. The Greenhuse Effect
Watch and fllw
be gd fr对...有益
Language pints
fr+一段时间 现在完成时
take away 拿走 be taken away 被带走
disappear 消失
The earth is 4.6 billin years ld. We humans have lived n the earth fr nly 35 000 years, but during this perid, we have changed ur planet a lt in many ways. Sme things we’ve dne are very gd fr the earth while sme are bad.________ _ All ver the wrld, peple have cut dwn millins f trees. When it rains r when the wind blws, the earth is taken away. Frests have becme deserts, s many kinds f animals and plants are disappearing.
health 健康 healthy 健康的
be imprtant t 对...很重要
Read and remember
be gd fr 对...有益
take away 拿走
all ver the wrld 全世界
cut dwn 砍倒
millins f 数百万
as a result 作为结果
be dead 死亡
air pllutin 空气污染
zne layer 臭氧层
the greenhuse effect 温室效应
Match phrases
be deadzne layerbe imprtant tthe greenhuse effect all ver the wrld take awaymillins fair pllutin as a result
死亡数百万对...很重要温室效应拿走空气污染臭氧层作为结果全世界
Cmplete the ntes accrding t 1a.
cars and buses pllute air, health prblems
pllute land and water, rivers and lakes dead
harmful radiatin reaches the earth, cause cancer
factry pllutin
Surf the Internet t cllect mre infrmatin abut envirnmental prblems and effects. Then discuss the infrmatin in grups and take ntes.
Cmbine the key pints in 1c and 2 t frm a shrt passage and pay attentin t the prper linking wrds.
As we all knw, water pllutin is becming mre and mre serius. Sme factries pur waste water int the rivers. As a result, it makes the water dirty and smell terrible. Mst f fish in the water have died and we can’t swim in the water. Water is very imprtant t human beings, s we shuld d ur best t prtect and save it. Luckily, ur gvernment is taking measures t prtect the water frm pllutin.