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32页。PPT课件主要包含了false，half true等内容，欢迎下载使用。

Here are sme questins abut “green living” in Activity 1 .Chse the answers yu agree with and why?
Hw much d yu knw abut “green living”?
1. Which shpping bag is mre envirnmentally friendly ? A plastic（塑料的） 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.
Are yur chices really green?
What is the functin f the red parts?
What is the structure f the passage?
subheading 副标题；小标题
What's the main idea f the passage?
It discusses sme cmmn _________ which have been shwn t be nly________ r even cmpletely__________
green truths
What’s really green?
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.
Read the passage and check yur answers.
Read the effects and cmplete the causes
1Mst f us are aware that we must take care f the envirnment, and the majrity f us take steps t save energy and reduce waste and pllutin. But recently, sme “green truths” have been shwn t be nly half true, r even cmpletely false. Here are sme cmmn nes. Which are really green?
Paper shpping bags are better than plastic nes.
2Plastic bags cause litter and are a danger t wild animals, which mistake them fr fd. It takes hundreds f years fr plastic t break dwn, but much less time fr paper. Because f this, peple think paper bags are the better envirnmental chice.
3Hwever, 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. 4In fact, bth kinds f bags are bad fr the envirnment. S, take a reusable bag with yu when yu g shpping.
a number f许多the number f...的数量
Read the effects and cmplete the causes and measures f these accrding t the passage.
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.
Take a reusable bag with yu when yu g shpping.
When yu turn ff a device, it stps using pwer.
5When we turn ff a device, such as televisin, it ges int stand­by mde. Devices in this mde still use pwer, and lder devices in stand­by mde can use even mre. This happens because electricity cntinues t leak frm the device, even when it is turned “ff”. T make sure yur appliance is in fact ff, remve the plug frm its pwer supply.
2. Devices turned ff g int stand-by mde and still use pwer.
Turning ff a device wn't stp it frm using pwer.
Remve theplug frm itspwer supply.
Eating lcal fd is gd fr the envirnment.
6It seems like cmmn sense: eating lcal fd shuld be better fr the envirnment, because it des nt need t be transprted lng distances and kept cld during transprt. Unfrtunately, it is nt that simple. It is the prductin f fd, nt its transprt, that uses mst f the energy and prduces mst f the greenhuse gases.
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.
3. Lcal prduce smetimes might use mre energy and prduce mre greenhuse gases.
Eating lcal fd isn't always better fr the envirnment.
N suggestins.
It's better t take a shwer than a bath.
7It 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. Therefre, the key is t keep yur shwer time as shrt as pssible. 8Envirnmental awareness is nw part f daily life. But it’s wrth checking cmmn ideas and pinins t see what’s really green.
动名词的主动形式表示被动含义
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.
Keep yur shwer time as shrt as pssible.
Turning ff a device wn’t stp it frm using pwer.
Eating lcal fd isn’t better fr envirnment.
What’s green lifestyle? Hw much d yu knw abut green lifestyle?Resurce cnservatin and pllutin reductin 节约资源，减少污染；Green cnsumptin and green purchase 绿色消费，环保选购；Repeated use 重复使用，多次利用；Recycling 分类回收，循环再生；
1.Accrding t cmmn truth, what shuld we take when shpping?A．a plastic bag B．a paper bagC．a reusable bag D．a cheap bag
2. What shuld yu d t save energy when leaving yur hme?A. Turn ff a device.B. Use lder device.C. Unplug a device.D. Nne f these.
3．Why d peple prefer t eat lcal fd?A．Because it can save the energy used t transprt.B．Because it tastes better than the fd transprted lng away.C．Because its prductin uses less energy.D．Because it prduces less greenhuse gas.
4．Accrding t the passage, when shuld yu take a shwer?A．Anytime yu like.B．When yu spend less than 8 minutes in a shwer.C．When yur bath is quite large.D．When yu use abut 50 litres f water.
5. Which f the fllwing is really green accrding t the passage?A. Use paper bags when shpping.B. Turn ff a device when leaving yur hme.C. Eat lcal fd instead f that frm a lng distance.D. Keep yur shwer time as shrt as pssible.
6．Why des the writer write the passage?A．He wants t intrduce sme new ways t save energy.B．He wants t crrect the false green truths and shw really green nes.C．He wants t call n mre peple t prtect the envirnment.D．He wants t explain the imprtance f energy saving.