高教版（2021）拓展模块Unit 3 Doing Our Part for the Environment精品ppt课件

这是一份高教版（2021）拓展模块Unit 3 Doing Our Part for the Environment精品ppt课件，共42页。
knwledge bjectives
ability bjectives
emtinal bjectives
Part 1Warming up
1. What is the pllutin?
Pllutin is the prcess f making air, water, sil, etc. dirty
2. D yu knw which types f pllutin?
air pllutin
water pllutin
nise pllutin
rubbisheverywhere
Part 2Reading
What is the passage abut?
It is abut pllutin.Pllutin affects ur life in many ways.
Life tday is much easier than it was hundreds f years ag, but it has brught new prblems. One f the biggest prblems is pllutin. It affects ur life in many ways. We see it, smell it and even hear it. The mre peple there are, the mre pllutin they cause. Many years ag, the prblem was nt s serius because there were nt s many peple. When the land r the river gt plluted in ne place, peple simply mved t anther place. But tday many peple have nwhere else t g. Air pllutin is bad fr mst f the living things in the wrld. Water pllutin kills the fish and make the water unsafe t drink. Nise pllutin makes us get angry mre easily. Many cuntries have created laws t fight pllutin. Sme frbid peple frm burning cal at hme r factries frm releasing harmful smke int the air. There are als many cuntries encuraging peple t use clean energy.
main idea f each paragraphPara1Pllutin affects ur life in many ways.Para 2 The mre peple there are, the mre pllutin they cause.Para 3Different types f pllutin.Para 4Many cuntries are active t fight pllutin.
Read the passage and answer the fllwing questins.
2) One f the mst imprtant prblems peple are facing nw is ___________ . A. the whle wrld is being plluted B. the land is used up C. the ppulatin is getting smaller D. the natural resurces are used up
3) What kind f pllutin can we “hear”? A. Land pllutin. B. Nise pllutin. C. Air pllutin. D. Water pllutin.
5) What laws are created by sme cuntries t fight pllutin?A. Laws t stp peple frm driving cars.B. Laws t stp peple frm burning cal at hme. C. Laws t stp peple frm mving t ther places.D. Laws t frce peple t use clean energy.
What can we d t prtect ur earth?
1. Plant mre t schl n ft, by bike r water, electricity and clth bags instead f plastic bags.
Part 3Language Pints
affect v. 影响；感染effect n.作用，影响
eg:The drug may affect yur pwers f cncentratin. 这种药可能会影响你的注意力集中。Her wrds had a magical effect n us. 她的话对我们有一种魔力般的作用。
The +比较级，the +比较级 越……越……
eg:The mre yu knw,the better yu understand.你知道的越多，你就越明白。
3.nwhere else t g 无别处可去
eg:Suth t wrk, schl trackless recruitment seems t be the nly way peple can g nwhere else. 南下打工，似乎是求学无路招工无门的人的惟一出路。
4.be bad /gd fr 对…有害/有益
eg:That wuld be bad fr bankers and gd fr everyne else. 这对银行家是坏事，对其他所有人都是好事
clean energy 清洁能源
eg:As is knwn t all, using clean energy plays an imprtant rle in pllutin reductin. 众所周知，使用清洁能源在减少污染方面发挥着重要作用。
release sth. int sw. 将…排放到…中
eg:It is extremely irrespnsible fr Japan t release nuclear wastewater int the sea. 日本将核废水排放到大海中是极不负责任的。
frbid sb frm ding sth.禁止某人做某事
eg: Ministry f Railways rules effectively frbid freign cmpanies frm bidding. 铁道部的相关规定实际上禁止外国公司竞标信号合同。
Part 5Language practice
人称代词和物主代词的特殊用法
原级即形容词和副词的原形，比较级和最高级有规则变化和不规则变化两种。形容词比较等级的规则变化表口诀:一般词尾加-er。最高级要牢记，词尾要加-est。多音节词前加mre，mst。一般情况直接加，下列几条是特例。词尾有e省去e，nice-nicer-nicest 就是例。如遇“辅音字母+y”词，变y为i再加-er，-est，easy-easier-casiest是一例。一辅重读闭音节,末尾字母先双写，再把-er，-est 后边接。举个例子就明了,big-bigger-biggest。
Adj. and Adv.(形容词和副词)
形容词和副词比较级的不规则变化
口诀: ①合而为一有三对,“病坏”“两多”与“两好”,②一分为二有两个,一个“远”来一个“老”。③还有一个双含义,只记“少”来别记“小”。注意: 形容词、副词的比较级前可加“much 多;a little一点;a lt 多;a bit 一点;even 甚至,更加;far多ratber相当,颇”等起修饰作用。
注意：比较级之前可用much、far、even、a little、rather等程度副词修饰，其中用倍数、分数等词表示比在比较级之前
Read and cmplete
选择恰当的单词补全句子。
1) Trees are planted every year, which makes 　　　　(we / ur) city mre beautiful.2) The strict law is likely t imprve the air quality in this city and 　　　　(it / its) neighbring cities.3) I’m mving t the cuntryside because the air there is much fresher than 　　　　(ne / that) in the city.4) There are many tall trees n 　　　　(every / each) side f the rad.5) Several years ag, there were 　　　　(fewer / few) cars than there are nw in this city.
6) When spring cmes, the days get lnger and the nights get 　　　　(shrter / shrt).7) There’s t much waste in yur rm, and my rm is much 　　　　(cleaner / clean) than yurs.8) Making recycled paper uses 58 percent 　　　　 (little / less) water.9) Our gvernment has taken actins t build a cuntry where there are mre blue skies, greener land, and 　　　　(clear / clearer) water.10) Cmpared with water r air pllutin, land pllutin wuld cst much 　　 (many / mre) t deal with.
选择恰当的单词补全有关植树抗沙的故事。
1)　　　　 (Many / Much) peple believe it is almst impssible t turn a desert int a green land. But Tubbat, a 65-year-ld man, has achieved it.“When I was a child, it was much 2)　　　　 (mre / many) beautiful here and it rained3)　　　 (frequently / mre frequently) than it des tday. The envirnment was 4) 　 (wrse / better) then.” said Tubbat, “Then we gt sandstrms. The green land became 5)　 　　 (small / smaller) and smaller, s peple had t mve away.”Tubbat always wanted t d 6)　　 　　(anything / smething) t make a change. S when he retired in 2002, he started t plant trees in the desert. The trees he planted were saxaul (梭梭). It is an almst leafless tree 7) 　 (which / what) grws in sandy sil. Nw Tubbat has spent 8)　　 　 (mre / much) than 17 years fighting against the desert. He has planted mre than 50 000 trees in an area which is 9)　　 　 (as big as / bigger) 133 sccer fields put tgether.
mre frequently
选择正确答案补全有关环境保护的倡议。
We all knw that the envirnment arund the wrld is getting 1)　　　　 and wrse. In sme places rivers are plluted and trees are cut dwn. 2)　　　　 peple even have n clean water t drink.Recently, a new lifestyle called lw carbn (低碳) life is spreading t 3)　　　　 crner f the cuntry. Lw carbn means lw energy and little waste. It is s imprtant that I can’t wait t express my ideas n 4)　　　　 t prmte it.First, we shuld set up a n-driving day every week. Because cars nt nly cause air pllutin but als waste energy. On the n-driving day, neither students nr teachers are allwed t drive t schl. Instead, they shuld cme t schl and g hme 5)　　　　, by bike r by public transprtatin.
Secnd, we had better nt use plastic bags anymre. 6)　　　　 likes the “white pllutin”, s it is wise t use clth bags 7)　　　　 are reusable and envirnment-friendly.Finally, d nt verlk the small things we can d every day. Fr example, as a student, we shuld turn ff the lights when nbdy is in the classrm, use 8)　　　　 sides f the paper, and reuse ur textbks.All in all, 9)　　　　 is very imprtant fr all f us t put the lw carbn lifestyle int practice. Just set ur mind t 10)　　　　 things: n-driving days, n plastic bags, and n waste.
Read and chse
选择恰当的词语补全对话。
用所给单词或短语的正确形式补全对话。
Amy: Hi, Ben. Where are yu ging? Ben: I’m ging t the cmmunity center t give peple a lecture n waste 1)　 　 　　.Amy: Gd! I’m sure mre peple will be willing t d waste srting if they knw it is imprtant fr envirnmental 2)　　 　　. Ben: I agree! There are many things we can d t prtect the 3)　 　　　.　Amy: Really?
Ben: Yes, fr example yu can g shpping with 4)　 　　　 bags instead f plastic nes. They are reusable and envirnment- friendly.Amy: I gt it. Yu knw I ften rder takeut fd and it creates a lt f plastic 5)　 　　　. I think I shuld stp ding that. Ben: Yu’re right. The takeaway waste has becme a big prblem fr the gvernment t 6)　　 　.
Part 6Summary
affect, effect the +比较级，the +比较级， nwhere else t gbe bad /gd fr frbid sb frm ding sth. release sth. int sw.clean energy take actins a precius resurceturn ff save energy prtect the envirnmentbe respnsible fr srt the garbage clth /plastic bags
Useful wrds and expressins:
比较级和最高级有规则变化和不规则变化
1. 规则变化表 口诀:一般词尾加-er。最高级要牢记，词尾要加-est。多音节词前加mre，mst。一般情况直接加，下列几条是特例。词尾有e省去e，nice-nicer-nicest 就是例。如遇“辅音字母+y”词，变y为i再加-er，-est，easy-easier-casiest是一例。一辅重读闭音节,末尾字母先双写，再把-er，-est 后边接。2. 不规则变化 口诀: ①合而为一有三对,“病坏”“两多”与“两好”,②一分为二有两个,一个“远”来一个“老”。③还有一个双含义,只记“少”来别记“小”。
Part 6Hmewrk
1. Recite the useful wrds and expressins f this unit.2. Understand and recite the classificatin and usage f prnuns, and the cmparative degree sentence patterns f adjectives and adverb.