英语必修 第二册Unit 6 Earth first授课课件ppt

这是一份英语必修 第二册Unit 6 Earth first授课课件ppt，共41页。PPT课件主要包含了III，Group Work，Homework等内容，欢迎下载使用。
Pre-reading
Language pints
Fast reading
Intensive reading
Pst-reading
Lk at the questins abut “green living” and tick yur answers.
Which shpping bag is mre envirnmentally friendly? A plastic bag. A paper bag. Neither f these.
2. What shuld yu d t save energy when leaving yur hme?
Turn ff a device. Unplug a device. Neither f these.
3. What fd is better fr the envirnment?
Fd prduced near t where yu live.Fd prduced far frm where yu live. It depends.
4. Which uses less water?
Taking a bath. Taking a shwer. It depends.
What’s really green?
Read the fur subheadings in the passage and decide if they are true r false.
False. Making a paper bag uses fur times as much energy as making a plastic bag and up t three times the amunt f water. The prcess als prduces mre greenhuse gases.
False. When we turn ff a device, such as televisin, it ges int stand-by mde. Devices in this mde still use pwer, and lder devices in stand-by mde can use even mre.
False. In sme cases, lcal prduce might have used mre energy and prduced mre greenhuse gases than prduce grwn a lng way away — even taking int accunt its transprt.
False. It depends n hw lng yu spend in the shwer and hw large yur bath is. If yu spend mre than eight minutes in a shwer, yu’ll use as much water as in a bath — abut 50 litres f water.
Figure ut the structure f the passage.
Why d mst f peple think paper bags are the better envirnmental chice?Why des a device cntinues using pwer when it is turned ff?Why d peple think eating lcal fd shuld be better fr the envirnment?
Why d mst f peple think paper bags are the better envirnmental chice?
2. Why des a device cntinues using pwer when it is turned ff?
3. Why d peple think eating lcal fd shuld be better fr the envirnment?
Which f the “green truths” surprises yu mst? Give yur reasns. Are yu aware f any ther “green truths” that are nt true? Share them with the class. Hw “green” are yu? Share yur “green actins” with the class. What can yu d t becme “greener”?
Think Share
Which f the “green truths” surprises yu mst? Give yur reasns.
Varius answers are pssible.
2. Are yu aware f any ther “green truths” that are nt true? Share them with the class.
The rganic fd smetimes is nt as green as we suppse; The car using electricity instead f petrl is nt energy-saving …
3. Hw “green” are yu? Share yur “green actins” with the class.
Turn ff the lights and remve the plugs f electric devices when I g ut r dn’t use them;Give the ld clthes t thers t reuse them;Take a clth bag r shpping basket instead f plastic bags when shpping …
4. What can yu d t becme “greener”?
Hw t becme a “greener”
Give a talk abut ne f the “green truths” in the passage.
• Which “green truth” are yu ging t talk abut? • Why d peple believe it is “green”?• Why is it nt cmpletely true? • What can yu d t becme “greener”?
• Start yur talk by stating the tpic. • Describe yur chsen “green truth” in mre detail. • Explain why it is nt cmpletely “green”. • End yur talk by encuraging yur audience t becme “greener”.
Reference Text
Tday I wuld like t talk abut if paper shpping bags are better than plastic bags.As everyne knws, plastic bags cause litter and are a danger t wild animals. It takes hundreds f years fr plastic bags t break dwn. Therefre, plastic bags are bad fr the envirnment. Because f this, sme peple think paper bags are better than plastic nes. But that is nt true.
Making paper bags uses much mre energy and water. It als prduces mre green huse gases. S we cme t the cnclusin that paper bags are nt envirnmentally friendly, either. Since bth f the abve are nt gd fr the envirnment, what's really green? I suggest taking a reusable bag with yu when shpping. It is really green. Starting frm the small things arund us, everyne can becme a real "greener".
1. aware adj 知道；意识到
Imprtant wrds & expressins
be aware f sthbe aware that …
awareness n 意识
Were yu aware that smething was wrng?
He was well aware f the prblem.
raise / increase / prmte ne’s awareness f sth 提升某人对某事的意识
2. break dwn 出故障； 失败；分解；崩溃失控
3. wrth adj 值……的
一位本地珠宝商说这颗珍珠至少值500美元。
他已经决定去看一下那所房子，看看是否值得买。
A lcal jeweller says the pearl is wrth at least $500.
He’s decided t get a lk at the huse and see if it might be wrth buying.
I am spending a lt f mney and time n this bat, but it is wrth it.
Imprtant lexical chunks
the majrity fmistake … frmake surecmmn sense take … int accuntdepend n
1. It is the prductin f fd, nt its transprt, that uses mst f the energy and prduces mst f the greenhuse gases.
Imprtant sentences
强调句型：It is / was + 被强调部分（通常是主语、宾语或状语）+ that / wh（当强调主语且主语指人时可用 wh）+ 其他成分。
消耗大部分能源、产生大部分温室气体的是食物生产过程，而不是运输。
— Were all three peple in the car injured in the accident? — N, ___ nly the tw passengers wh gt hurt. A. it was B. there is C. it were D. there was
3. It was _____ he said _____ disappinted me.
2. It was in the small huse built with stnes by his father ______ he spent his childhd.
2. In sme cases, lcal prduce might have used mre energy and prduced mre greenhuse gases than prduce grwn a lng way away — even taking int accunt its transprt.
在某些情况下，即使考虑到运输因素，本地农产品可能比外地农产品消耗更多的能源、产生更多的温室气体。
2. In sme cases, lcal prduce might have used mre energy and prduced mre greenhuse gases than prduce grwn a lng way away — even taking int accunt its transprt.
prduce v.“制造，制作” n. “农产品”。
Search the Internet t knw mre abut ther “green truths” that are nt true.Write a shrt passage abut them.