Unit 13 We're trying to save the earth!Period 4(Section B 2a－2e)课件(共12张PPT)

(共12张PPT)
Unit 13　We're trying to save the earth!
Period 4(Section B 2a－2e)
教学目标 1. 能利用废旧物品制作成有用的物品，并用英语向大家作简单的介绍2. 能利用标题和图片猜测文章大意3. 能利用词的前缀或后缀来理解词义4. 了解民众保护环境的意识，能够用适当的语言表达自己内心的感受
重点词汇 throw away, put sth. to good use, pull... down, upside down, gate, bottle, president, work, metal, bring back
重点句型 ①Have you ever thought about how these things can actually be put to good use ②He is known for using iron and other materials from old cars to make beautiful art pieces.
难点 Not only can the art bring happiness to others, but it also shows that even cold, hard iron can be brought back to life with a little creativity.
1. throw away 扔掉；抛弃
【点拨】(1)throw away意为“扔掉；丢弃；抛弃”。如：
①Do you often throw away things you don't need anymore
你经常扔掉你不再使用的东西吗？
②I never throw anything away on the ground.
我从来不在地上扔任何东西。
(2)throw away也可表示“错过(机会等)；放过；未能很好利用(机会等)”。如：
Don't throw away this opportunity.
不要错过这个机会。
(3)throw away还可表示“浪费(时间、金钱等)；乱花(钱等)”。如：
It will be time and money thrown away.
这将浪费时间和金钱。
2. put sth. to good use好好利用
【点拨】put sth. to good use意为“充分利用某事/物”。如：
①Have you ever thought about how these things can actually be put to good use
你曾想过这些东西能怎样被充分利用吗？
②He puts his love to good use by teaching kids to draw.他通过教孩子们画画来奉献自己的爱心。
【延伸】put的相关短语：put off推迟；put up举起，张贴；put on穿上，上演；put away整理好。
3. bring back 恢复；使想起；归还
【点拨】bring back意为“恢复；使想起；归还”。如：
①We must bring him back to health.
我们必须使他恢复健康。
②These old photos brought back many pleasant memories.
这些老照片给人带来很多美好的回忆。
③Please bring back the books to the library in two weeks.请在两周以后把书归还给图书馆。
4. creativity创造力；独创性
【点拨】creativity是名词，它的动词形式是 create，意为“创造；创建”，creative 是形容词，意为“有创造力的；创造性的”， creation 可作不可数名词，意为“创造”，也可作可数名词，意为“创造物”。如：
①Paper was first created about 2,000 years ago.
纸最早是在大约两千年前创造出来的。
②He's a creative boy with many new ideas.
他是个有创造力的男孩，有很多新想法。
③I was full and glad with joy of creation.
由于创作的乐趣，我感到满足和欢欣。
④I regard creativity both as a gift and as a skill.
我认为创造力既是一种天赋也是一种技巧。
She has also set up a website to sell them online.
她也建立了一个网站用来在网上销售它们。
【点拨】(1)set up意为“成立；建立；创立；开办；设立；设置”，相当于start, establish, put up, found等。如：
①We set up a company.
我们成立了一个公司。
②The government will set up a new school here.政府将在这里开办一所新学校。
(2)to sell them online是不定式短语表目的。如：
He went to the library to look up some information about robots.
他去图书馆查阅了一些关于机器人的信息。
(3)sell是动词，意为“卖；销售”；sale是其名词形式，意为“卖”。相关短语：sell well畅销； sell out卖完； on sale廉价出售； have a yard sale庭院旧货出售。
如：
①We sell pants for only ￥30.
我们的裤子只售30元。
②These kinds of TV sets sell well.
这些种类的电视机很畅销。
③Sorry, our coffee is sold out.
对不起，我们的咖啡卖完了。
④The green shorts are on sale for $25.
那些绿色短裤以25美元的价格廉价出售。
【注意】sell well没有被动语态；sell out可用于被动语态，也可用于主动语态。
【辨析】too, as well, also与either
四者均可表示“也”，它们的区别如下：
(1)too和as well通常用于肯定句或疑问句，一般不用于否定句，且通常放在句末。
(2)also一般也不用于否定句，常放在行为动词之前。
(3)either通常只用于否定句，且放在句末。
如：
①Mike likes Peking Opera. His father likes it, too.
迈克喜欢京剧，他的爸爸也喜欢。
②Are they coming as well
他们也来吗？
③It has the best quality. It also has the lowest price.
它有最好的质量，也有最低的价格。
④I don't know, either.
我也不知道。