高中英语外研版 (2019)必修 第二册Unit 6 Earth first教课课件ppt

这是一份高中英语外研版 (2019)必修 第二册Unit 6 Earth first教课课件ppt，共39页。PPT课件主要包含了contents，Homework，Conclusion，III，CAUSES，EFFECTS，出故障，失控痛哭，的大多数，把错认为等内容，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.
1. 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.
Learning t learn
As subheadings expand n the main heading r title, they can be slightly lnger than the main heading. Althugh nt every paragraph needs a subheading, they can be skimmed t give the reader an verall understanding f the cntent f a text.
Read the fur subheadings in the passage and decide if they are true r false. Then read the passage and check yur answers.
? Paper shpping bags are better than plastic nes.
? When yu turn ff a device, it stps using pwer.
? Eating lcal fd is gd fr the envirnment.
? It’s better t take a shwer than a bath.
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.
In fact, bth kinds f bags are bad fr the envirnment. S, take a reusable bag with yu when yu g shpping.
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.
T make sure yur appliance is in fact ff, remve the plug frm its pwer supply.
Apart frm the transprt, we shuld take the prductin f fd int accunt.
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.
The key is t keep yur shwer time as shrt as pssible.
Read the passage fast and try t figure ut the structure f it.
Read the passage carefully and cmplete the causes f these effects.
1. Making a paper bag uses mre energy and water than making a plastic bag. It als prduces mre greenhuse gases.
Paper bags are nt gd fr the envirnment.
2. Devices turned ff g int stand-by mde and still use pwer.
Turning ff a device wn’t stp it frm using pwer.
3. Lcal prduce smetimes might use mre energy and prduce mre greenhuse gases than prduce grwn a lng way away – even taking int accunt its transprt.
Eating lcal fd isn’t always better fr the envirnment.
4. 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.
It’s nt always better t take a shwer than a bath.
Intensive reading: Think and share
Read the passage and answer the questins.
1. Which f the “green truths” surprises yu mst? Give yur reasns. 2. Are yu aware f any ther “green truths” that are nt true? Share them with the class. 3. Hw “green” are yu? Share yur “green actins” with the class. 4. What can yu d t becme “greener”?
Intensive reading: Think and share
1. 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”?
Wrk in grups. 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”?
1. Use these questins t help plan yur talk.
• 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”.
2. Organize yur talk fllwing the steps belw.
3. Give yur talk t the class.
1. aware adj 知道；意识到
Language pints: Imprtant wrds & expressins
be aware f sthbe aware that …
He was well aware f the prblem. 他很清楚这个问题。 Were yu aware that smething was wrng? 你有没有意识到已经出了问题?
awareness n 意识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
The car brke dwn.Talks with business leaders brke dwn last night.The analysis shws that plastics, particularly thse that break dwn fast, are cntributing t the climate change.If Tim carries n wrking like this, he’ll break dwn sner r later.Because he was being s kind and cncerned, I brke dwn and cried.
3. wrth adj 值……的
一位本地珠宝商说这颗珍珠至少值500美元。A lcal jeweller says the pearl is wrth at least $500.
他已经决定去看一下那所房子，看看是否值得买。He’s decided t get a lk at the huse and see if it might be wrth buying.
我花了很多钱和时间在这艘船上，但这样做值得。I am spending a lt f mney and time n this bat, but it is wrth it.
1. the majrity f ___________________ 2. mistake … fr ___________________ 3. make sure ___________________4. cmmn sense ___________________ 5. take … int accunt ___________________6. depend n ___________________
Language pints: Imprtant lexical chunks
1. It is the prductin f fd, nt its transprt, that uses mst f the energy and prduces mst f the greenhuse gases.
Language pints: 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。
构成强调句的 it 本身没有实际意义；强调句中的连接词一般只用 that 或 wh，即使在强调时间状语和地点状语时也是如此，that 或 wh 不可省略；可用于强调句中的时态通常只有两种，即一般现在时和一般过去时。
— 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.
长难句分析：1）mre … than … 比……更……
2）prduce 除了可以用作动词，意为“制造，制作”外，还可以用作名词，意为“农产品”。 The drug is knwn t prduce side-effects in wmen. (v)
cause sth t happen
 make r create sth
We manage t get mst f ur prduce in farmers’ markets. (n)我们设法在农贸市场弄到我们需要的大部分农产品。
The OPEC cuntries prduce abut 40 percent f glbal il. (v)
3) grwn a lng way away 作后置定语
… prduce grwn a lng way away …
… prduce that is grwn a lng way away …