unit 4 Global Warming 高三一轮复习

文档属性

名称 unit 4 Global Warming 高三一轮复习
格式 rar
文件大小 8.2MB
资源类型 教案
版本资源 人教版(新课程标准)
科目 英语
更新时间 2010-12-02 00:00:00

文档简介

课件16张PPT。global warminggreenhouse effectcarbon dioxidefossil fuels catastropheWe do something wrong with the earthTopic: global warming
Lecturer: Janice Foster
Time: this afternoon
Place: micro classroom
Key words:
fossil fuels
greenhouse effects
flood
phenomenon
consequence Dear students,
I’m doing a project _______ (代表) my institute about _________________(温室效应). In the atmosphere surrounding the earth there are certain amounts of gases, which help to ____ (困住)heat from the sun. Thus, all creatures on earth won’t feel too cold. However, the burning of _______ (化石燃料) add huge ________ (大量) extra Co2 into the atmosphere. Therefore, more heat tends be trapped, causing the global temperature to _____(上升). According to some measurements, the last two decades saw _____________ (快速增长)of Co2 in the atmosphere. ____________________ (毫无疑问) it is the burning of fossil fuels that _________(导致) the _____(现象). It is human beings that have caused and will cause environmental ___________ (结果) such as ____ (洪水), droughts, famines and so on.on behalf ofquantities offossil fuelstrapgreenhouse effectsThere is no doubt thata rapid increasego upphenomenon results inconsequencesfloodsDear students,
I’m doing a project on behalf of my institute about greenhouse effects. In the atmosphere surrounding the earth there are certain amounts of gases, which help to trap heat from the sun. Thus, all creatures on earth won’t feel too cold. However, the burning of fossil fuels add huge quantities of extra Co2 into the atmosphere. Therefore, more heat tends be trapped, causing the global temperature to go up. According to some measurements, the last two decades saw a rapid increase of Co2 in the atmosphere. There is no doubt that it is the burning of fossil fuels that results in the phenomenon. It is human beings that have caused and will cause environmental consequences such as floods, droughts, famines and so on.THE EARTH IS BECOMING WARMER BUT DOES IT MATTER? Readinga rise of sea levels
storms, floods, droughts, famines
the spread of diseases
the disappearance of speciesplants grow quicker
crops produce more
a greater ranger of animals
make life for human beings betterJanice FosterGeorge HambleyAgree?Disagree?I subscribe to the view that …
I agree with…
I couldn’t agree more with …
I think so.
…I am opposed to the view that…
I’m afraid I disagree with…
I doubt …
I don’t think …
I have the opposite opinion.
…AgreementDisagreement No one knows the effects of global warming. Does that mean we should do nothing?No! Dear students,
Nice to see you again. Now that we have learned how the global warming _________ (发生), I ________(提倡) improvements in the way we use energy. Please note that we ________(个人), with a correct _____ (态度), have the _____ (能力) to do something. Don’t be _________(随意) electrical appliances. Turn them off ________ (只要)you don’t need them. Walk instead of taking _________ (机动车). Recycle if _____________(情况) allow. Buy things __________ (节约)with energy. Plant as many trees as possible. ________________________(最后,也是最重要的), be an ______(教育者) and tell those around you about global warming. Remember, ___________________________________(众人拾柴火焰高) and your contribution _______(有价值).comes about power individualsattitudeadvocate casual aboutTogether, individuals can make a difference educatorFinally and most importantlyeconomical circumstancesvehiclesso long as counts Dear students,
Nice to see you again. Now that we have learned how the global warming comes about, I advocate improvements in the way we use energy. Please note that we individuals, with a correct attitude, have the power to do something. Don’t be casual about electrical appliances. Turn them off so long as you don’t need them. Walk instead of taking vehicles. Recycle if circumstances allow. Buy things economical with energy. Plants as many trees as possible. Finally and most importantly, be an educator and tell those around you about global warming. Remember, together, individuals can make a difference and your contribution counts.
Your contribution counts.
It is your contribution that counts.
We have to protect trees.
It is trees that we have to protect.
We should avoid taking motor vehicles.
It is motor vehicles that we should avoid taking.
We must turn off electrical appliances.
It is electrical appliances that we must turn off.
To be an advocate is important.
It is to be an advocate that is important.请根据海报内容写一份倡议书
环保是我们中学生义不容辞的责任
我们可以养成这些环保习惯
我们人人都为地球尽一份绵薄之力吧。One possible version Dear friends,
Do you want to live in a beautiful world? So it is our duty to keep the balance of nature. To achieve this goal, we should bear the following ecological codes in mind. First, while sticking to the habit of walking to school, we should plant as many trees as possible. It’s also important to recycle everything recyclable and cherish our school’s environment by picking up any litter and turning off the taps and the lights. Let’s all take action now and contribute to the prosperity of our mother—the earth.
Thank you!
The Students’ UnionHomework 1. Revise the words and expressions again.
2. Make a poster and tell others how to stop global warming.