外研版 (2019)必修 第二册Unit 6 Earth first教案

这是一份外研版 (2019)必修 第二册Unit 6 Earth first教案，共9页。教案主要包含了词形变化，短语搭配，即学即练，一词多义等内容，欢迎下载使用。

Teaching bjectives:
Enable students t master the wrds and expressins abut the tpic.
Lead students t be familiar with the tpic and stimulate their knwn backgrund knwledge and interests in the tpic.
Guide students t take advantage f divergent thinking and be able t describe what cartns shw and express their ideas in English.
Raise students’ awareness f prtecting the earth.
Evaluatin bjectives:
Ask students t talk abut the cartns t find ut whether students can get t knw the envirnmental prblems the earth is facing.
Ask students t describe the causes f envirnmental prblems and hw t deal with them t find ut whether students can think divergently.
Ask students t d sme exercises related t key wrds t find ut whether they have mastered them.
Teaching key pints:
Enable students t understand the envirnmental prblems the earth is facing.
Lead students t express their wn pinins abut the causes f envirnmental prblems and hw t deal with them.
Lead students t knw the meanings f key wrds in the language cntext.
Teaching difficult pints:
Students can express their wn pinins abut the causes f envirnmental prblems and hw t deal with them.
Students can use the wrds in the cntext prperly.
Teaching methds:
Cperative Teaching Methd, Task-based Apprach, Cmmunicative Apprach
Teaching prcedures:
Step1: Lead-in
T:Hell! Bys and girls.As we all knw, nwadays, the envirnment is facing many challenges. Can yu make a list f sme envirnmental prblems?
S:Smg, white pllutin...
T:Yu did a gd jb.Nw, I’d like yu t lk at sme cartns abut envirnmental prblem.
Lk at the cartns n Page 61 and answer the fllwing questins.
1.What envirnmental prblem des each cartn refer t?
2.What are the causes f these prblems?
3.What d yu think is the mst serius envirnmental prblem we face tday?What shuld be dne t help slve it?
Suggested answers:
1.water pllutin;defrestatin;air pllutin;glbal warming
2.Students’ wn answers
T:Nw, let’s cnclude the causes yu just nw mentined.Just take ntes f the key expressins:（1）cut dwn trees （2）ignre the envirnment （3）nly seek t make mre and mre mney（4）thrw away rubbish at will...
3.Students’ wn answers
T:Maybe, the fllwing expressins can help yu express yur ideas:（1）raise peple’s awareness f envirnmental prtectin（2）recycle rubbish （3）classificatin f the waste （4）lw-carbn life
Step 2:Exchange ideas with each ther in grups
Step 3:Brainstrm
Please make a list f the wrds related t envirnmental prblems and slutins t them.
T:Just nw, we have been talking abut envirnmental prblems and we have learnt sme expressins abut them.Nw, please think ver and mentin mre abut envirnmental prblems and slutins t them.
T:Nw, let’s summarize what yu have mentined.
Suggested answers:
glbal warming（2）climate change（3）verppulatin（4）waste dispsal（5）lss f bidiversity（6）take effective measures t d（7）pass laws（8）put a ban n（9）attach imprtance t
Step4:Remember the fllwing wrds
A.Match the wrds with meanings
(1)shark (1)v.使(某人)惊恐,吓唬
(2)scare (2)n.鲨(鱼)
(3)dive (3)n.灭绝,绝种
(4)target(4)v.致力
(5)extinctin(5)n.残酷;残暴
(6)highlight(6)v.(通常指使用呼吸设备的)潜水
(7)cruelty(7)v.把……作为目标
(8)hunting(8)v.建立
(9)damage(9)n.干旱,旱灾
(10)affect(10)v.使恢复
(11)adpt(11)v.(使)漏,(使)渗漏
(12)reusable(12)v.使……突出,使注意力集中于
(13)release(13)v.搬走,移走,去掉
(14)campaign(14)v.竭力主张,强烈要求,敦促
(15)fg (15)adj.可再度使用的,可多次使用的
(16)infectin(16)adj.焦急的;担忧的
(17)sustainable(17)v.促成,造成(某事发生)
(18)cntribute(18)v.破损;损害
(19)reserve (19)n.雾
(20)fin (20)v.切去(鱼的)鳍 n.鱼鳍
(21)drught(21)v.影响
(22)restre(22)n.(宣传)活动
(23)leak(23)v.释放,排放
(24)remve(24)n.感染,传染病
(25)devte(25)adj.可持续的,不破坏环境的
(26)cncerned(26)n.(野生生物)保护区
(27)urge(27)v.采取(某种方法)
(28)establish(28)n.打猎;狩猎
B.根据释义写出单词
1. A feeling r an pinin abut smething r smene
2. A situatin in which a particular type f animals r plants dies ut
3. A sudden feeling f fear r wrry
4. Because f;as a result f
5. Jump int water r swim underwater
6. A large fish that has sharp teeth and a fin n its back
7. By gd luck
8. An aim r a gal that yu are trying t achieve
9. Set up;fund
10. Wrried;anxius
11. Mve;get rid f
12. Try t persuade sb.t d sth.
13. Allw (a persn r an animal) t g;set free
14. Have an effect n
Suggested answers:
A.略
2.extinctin 3.scare 4.due t 5.dive 6.shark 7.frtunately 8.target 9.establish 10.cncerned 11.remve 12.urge 13.release 14.affect
Step 5:Learn the key wrds
1.scare v.使(某人)惊恐,吓唬
【词形变化】
adj.scary可怕的;骇人的 scared恐惧的
【短语搭配】
scare sb.away/ff 把……吓跑 scare sb.int ding sth.恐吓、威胁某人做某事
【即学即练】
(1)Yu can’t scare me telling yu anything.
(2)Jeff had hunted in Iwa befre Thanksgiving with his dg,Rsie,but the gun shts had scared the dg .
2.target v.把……作为目标
【一词多义】n.目标;对象
【短语搭配】
target sth.n/at sb./sth.把某物瞄准某人/某物
be targeted at目标是;面向 a target fr...……的目标
【即学即练】
(1)Wh were the newspapers f the new trend targeted ?
(2)我所说的话并非针对你。
___________________________________________________________
3.devte v.致力,献身
【词形变化】 n.devtin 献身;热爱
【短语搭配】
devte ne’s time/energy/attentin t sth.把某人的时间、精力、注意力用于某事
devte neself t sth.致力于某事
be devted t (ding) sth.致力于(做)某事
【即学即练】
(1)Neighburs devted their spare time t (help) thers rebuild.
(2)Hwever,instead f (致力于) their wrk,they find themselves wrking t supprt the lifestyle t which they have s quickly becme accustmed.
4.reduce v.减少
【词形变化】 n.reductin减少
【短语搭配】
reduce sth.by把某物减少了(幅度) reduce 把某物从……减少到……
【即学即练】
(1)The number f cities prducing CO beynd the standard (从40减少到9).
(2)Cnsumptin (减少了25%),cmpared t that last year.
5.accunt n.账户;账单
【一词多义】v.认为是;视为
【短语搭配】
accunt把……考虑在内
accunt fr是……的原因;解释;说明;占(一定数量或比例)
n accunt f 由于;因为
n n accunt绝不;绝对不
【即学即练】
(1) When yu are making a plan,yu shuld (把天气考虑在内).
(2)The prfessr warned the students that (绝不) shuld they use mbile phnes in his class.
(3)It is said that bdy language (占) 55% f a first impressin while what yu say just 7%.
6.urge v.强烈要求;敦促
【一词多义】n.冲动
【短语搭配】
urge sb.t d sth.力劝/敦促某人做某事
urge sb.int/twards...驱赶某人,把某人赶进……
【即学即练】
(1)I never felt (冲动) t learn any sign language befre.
(2)很多学生被敦促努力学习。
____________________________________________________________
7.cncerned adj.焦急的;担忧的
【词形变化】 v./n.cncern担忧;关心
【短语搭配】
be cncerned abut...对……担心 be cncerned with...与……有关;涉及 as far as sb.be cncerned就……而言;在……看来
【即学即练】
(1)Others (担心) using gardening methds that require less water and fewer fertilizers(肥料).
(2)你的文章需与环境保护有关。
____________________________________________________________
8.cntribute v.促成;造成
【词形变化】 n.cntributin贡献;捐款
【短语搭配】
向……捐献
cntribute t...导致/造成某事发生
make a cntributin t...对……做出贡献
【即学即练】
(1)We are nt saying that everyne needs t cntribute their lives the pr.
(2)人们的行为导致了环境污染。
Suggested answers:
1.(1)int (2)away/ff
2.(1)n/at (2)What I said didn’t target yu.
3.(1)helping (2)devting themselves t
4.(1)is reduced frm 40 t 9 (2)is reduced by 25%
5.(1)take weather int accunt (2)n n accunt (3)accunts fr
6.(1)the urge (2)Many students are urged t study hard.
7.(1)are cncerned abut (2)Yur essay shuld be cncerned with envirnmental prtectin.
8.(1)t/twards (2)Peple’s behavirs cntribute t envirnmental pllutin.
Step 6:Reflectin n what students have learned in this class
Please write a shrt paragraph abut “Hw t deal with air pllutin” accrding t what yu have learnt in this class.(Abut 50-80 wrds)
Hmewrk:
Plish the paragraph.Teammates wrk tgether t crrect the mistakes in the use f wrds and grammar.