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初中英语人教新目标 (Go for it) 版九年级全册Unit 13 We’re trying to save the earth!Section A优秀课件ppt
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这是一份初中英语人教新目标 (Go for it) 版九年级全册Unit 13 We’re trying to save the earth!Section A优秀课件ppt，共60页。PPT课件主要包含了Warming up，WWF，WildAid，when，but，Although ，people，sharks，southern，cruel等内容，欢迎下载使用。
Learning gals
1. Wrds: shark, fin, cruel, harmful, chain, ecsystem, industry, law, scientific, affrd, reusable, transprtatin
3. Reading：a passage abut sharks
2. Useful expressins: be harmful t, at the tp f, the fd chain, take part in, turn ff, pay fr, take actin
4. Functins：Talk abut pllutin and envirnmental prtectin.
5. Grammar：能够正确区分和使用以下语法结构：现在进行时、 used t、被动语态、现在完成时、情态动词等。
D yu knw any endangered animals?
Siberian Tiger
Lynx pardinus
Galapags penguin
green turtle
We shuld try ur best t prtect animals.
Hw can we prtect them? Discuss in yur grup.
What d yu knw abut sharks?D yu think sharks are endangered? Why?What d yu think might have caused a fall in the number f sharks?
Read the passage in 3a quickly and answer the questins.
Sharks are at the tp f the fd chain in the cean’s ecsystem.
Yes, I think sharks are endangered. Because peple catch sharks, they cut ff their fins and thrw the shark back int the cean. Withut a fin, a shark can n lnger swim and slwly dies.
Peple catch sharks and cut ff their fins and thrw them back int the cean. Withut a fin, a shark dies.
What d yu think might have caused a fall in the number f sharks?
D yu think sharks are endangered? Why?
What d yu knw abut sharks?
3a Read the passage abut sharks and cmplete the fact sheet belw.
in suthern China
arund 70 millin
t develp laws t stp the sale f shark fins.
WildAid and the WWF
WWF (世界自然基金会) 英文全称作Wrld Wide Fund Fr Nature,是享有国际盛誉、全球最大的独立性非政府环境保护组织之一。这一国际组织成立于1961年，致力于保护世界生物多样性、确保可再生自然资源的可持续利用，以及推动降低污染和减少浪费性消费的行动。迄今，该组织在六大洲的153个国家发起或完成了约12,000个环保项目。
WildAid (美国野生救援协会) 是一个非营利性的动物及栖息地环境保护机构，1999年在美国注册，总部设在美国旧金山，负责监控和协调世界各国各个项目开展的情况。它在纽约、曼谷、伦敦、华盛顿、北京、海参崴等地设有办事处。这一机构的宗旨是世界范围的野生动物保护及救助，其重要工作之一是野生动物保护行动 (ACAP)。
1. Many peple d nt realize they are killing a whle shark ______ they enjy a bwl f shark fin sup.2. Sharks are at the tp f the fd chain, ________ if their numbers drp, the cean’s ecsystem will be in danger.3. Many think that sharks are t strng t be endangered, _______ they are wrng.
3b Read the passage again and fill in the blanks with the wrds in the bx.
s althugh if but when
4. ________ there are n scientific studies t supprt this, a lt f peple believe that shark fins are gd fr health.5. Sharks may disappear ne day _______ we d nt d smething t stp the sale f shark fins.
What des the wrd “they” refer t accrding t the passage?
1. When peple catch sharks, they cut ff their fins and thrw the sharks back int the cean.
2. Many believe that sharks can never be endangered because they are the strngest in their fd chain.
3. They have even asked gvernments t develp laws t stp the sale f shark fins.
( )
( )
envirnment prtectin grups
Listen and read.
Save the Sharks!Many have heard f shark fin sup. This famus and expensive dish is especially ppular in suthern China. But d yu realize that yu’re killing a whle shark each time yu enjy a bwl f shark fin sup?
When peple catch sharks, they cut ff their fins and thrw the sharks back int the cean. This is nt nly cruel, but als harmful t the envirnment. Withut a fin, a shark can n lnger swim and slwly dies. Sharks are at the tp f the fd chain in the cean’s ecsystem. If their numbers drp t lw, it will bring danger t all cean life. Many believe that sharks can never be endangered because they are the strngest in their fd chain. But in fact, arund 70 millin sharks are caught and traded in this industry every year. The numbers f sme kinds f sharks have fallen by ver 90 percent in the last 20 t 30 years.
Envirnmental prtectin grups arund the wrld, such as WildAid and the WWF, are teaching the public abut “finning”. They have even asked gvernments t develp laws t stp the sale f shark fins. S far, n scientific studies have shwn that shark fins are gd fr health, s why eat them? Help save the sharks!
Fill in the blanks accrding t the passage.
Sme peple like t eat shark fin sup, especially in China. But getting the shark fin is very . When peple catch sharks, they their fins and thrw the sharks back int the cean. The sharks slwly die because they can’t withut fins. And it is als t the envirnment. Sharks are at the f the fd chain. If the number f sharks drps t lw, it will break the balance f the nature. Please say n t eating shark fin sup, and take actin t save the sharks!
提出问题：吃鱼翅就是杀害一整头鲨鱼(Para.1)
shark fin sup is ppular in suthern Chinaa bwl f shark fin sup=killing a whle shark
解决问题：国际环保组织号召反对“猎翅”(Para.3)
cut ff their fins and thrw the sharks back int the cean
cruel and harmful t the envirnment
arund 70 millin sharks are caught and traded every year
bring danger t all cean life
the numbers f sme kinds f sharks have fallen by ver 90 percent in the last 20 t 30 years
分析问题：为什么要阻止“猎翅” (Para.2)
envirnmental prtectin grups
n scientific studies have shwn that shark fins are gd fr health
teaching the public abut “finning”asked gvernments t develp laws t stp the sale f shark fins
The structure f the passage
Read the fllwing sentences and grammar items.
Grammar Fcus
动词-ing形式的构成
一般情况下，在动词词尾后加-ing。g → ging。以不发音的e结尾的动词，去掉e加 -ing。 have → having。以重读闭音节结尾的动词，末尾只有一个辅音字母，双写这个辅音字母，再加 -ing。 stp → stpping。
一般情况下，在动词后加-ed。wrk → wrked。在以e结尾的动词后只加 -d。clse → clsed。在以辅音字母加y结尾的动词，应将y改为i再加ed。study → studied。以重读闭音节结尾的动词，要双写末尾的辅音字母再加-ed。stp → stpped。不规则动词的过去分词: AAA型 put put put AAB型 beat beat beaten ABA型 becme became becme ABB型 get gt gt/gtten ABC型 begin began begun
主动语态和被动语态的区别
主动语态表示主语是动作的执行者。被动语态表示主语是动作的承受者，即行为动作的对象。I cleaned my rm. → My rm was cleaned by me.I saw him crss the rad and enter the shp. → He was seen t crss the rad and enter the shp.
在含有使役动词 (make, let等) 或感官动词 (see, watch, ntice, hear等) 的主动语态的句子中，这些词后常跟省略t的动词不定式，但是改为被动语态时则要把省去的t还原。
被动语态的构成：be + 过去分词一般现在时被动语态：am/is/are + 过去分词一般过去时被动语态：was/ were + 过去分词一般将来时被动语态：will be/ is ging t be + 过去分词情态动词的被动语态：can/culd/may/might/shuld/must + be + 过去分词
1. 情态动词通常无人称和数的变化。2. 情态动词后接动词原形。3. 情态动词有：can/culd能够；may/might可能、可以；need需要； have t不得不；wuld愿意、将要；shall将(第一人称)； shuld应该；must必须
used t意为“过去常常做某事” ，后接动词原形。used t句型的否定句形式：didn’t use tused t句型的一般疑问句的形式：Did + 主语 + use t t d表示过去常常做某事，而现在往往不做了；be used t ding表示习惯于做某事。
4a Fill in the blanks with the crrect frms f the verbs in brackets.
Je: ______ yu ever ________ (take) part in an envirnmental prject? Ken: Yes, I have. I _______ (help) with a Clean-Up Day last year. It was __________ (cnsider) the biggest clean-up prject this city______ ever ________ (have). Je: Hw many peple ________ (take) part?
Ken: I ___________ (think) mre than 1,000 peple ______(cme) t help ut. Je: That’s fantastic! I guess everyne in this city is ______ (try) t imprve the envirnment. Ken: Yes, we can’t affrd t________ (wait) any lnger t take actin!
Peple _________ think that big things__________________ be dne t save the earth. Many frget that saving the earth begins with small things. Fr example, yu ______________ save electricity by turning ff the lights when yu leave a rm. Yu _______________ als use reusable bags instead f plastic bags.
4b Fill in the blanks with the apprpriate mdal verbs frm the bx.
can wuld culd have t shuld must may/ might
shuld/have t/must
can/culd/shuld
I think it’s a great idea that yu nw _______ pay fr plastic bags in sme stres. And instead f driving t schl r wrk, yu _______________ ride yur bike r walk. If it’s far, yu __________ take the bus. All these small things __________ add up and becme big things that ______________ imprve the envirnment. Let’s take actin nw!
wuld/can/culd
4c Make a list f things that peple can d t help the envirnment and discuss yur list with yur partner.
I think that everyne shuld use public transprtatin.
I disagree. It’s difficult fr parents with yung children t use public transprtatin ...
Language pints
harmfulharmful为形容词。意为“有害的”。常用作be harmful t，意为“对……是有害的”，与be bad fr为同义词。Smking is bad fr yur health.【拓展】①harm n.危害。常用作d harm t，意为“对……有害”。②harm v.有危害。常用作harm sb./sth.，意为“对……有害”。Reading in the sun des harm t yur eyes.=Reading in the sun harms yur eyes.
affrdaffrd为动词，意为“承担得起；负担；提供”。用法如下：(1)与 can, be able t等连用，表示“担负得起”某事或某物的费用、损失、后果等，或表示“抽得出”时间等，后面通常可接名词、代词、不定式等（多用于否定句或疑问句）。I can’t affrd (t buy)a new cat.He can’t affrd the time fr it.He says he really can’t affrd t wait anther day.
（2）表示“提供”“给予”，其后可以接双宾语（直接宾语通常为抽象概念），若双宾语交换位置，要用介词 t（此时无需连用 can, be able t等）。His visit affrds us great pleasure.=His visit affrds great pleasure t us.
affrd v.承担得起（后果）；买得起We can’t affrd t wait any lnger t take actin!I dn’t have enugh mney, s I can’t affrd the new huse.affrd sth.表示“买得起/承受得起某物”，affrd t d sth.表示“有能力做某事/负担得起做某事”。
【活学活用】1.单项选择—Angela, yu are ging t buy a flat here, aren’t yu?—Yes, but I can’t __________an expensive ne.A. spend B. cst C. pay D. affrd2.根据汉语意思完成句子我买得起这辆轿车。I can _________________ the car.
affrd t buy
turn ff 关掉Yu can save electricity by turning ff the lights when yu leave a rm.【拓展】turn的相关短语：turn n打开；turn up调大；turn dwn调小
【活学活用】—D yu knw the latest infrmatin abut Tianjin prt fire f truth?—I’ve n idea. Let’s__________the TV t watch the news prgramme.A. turn n B. turn dwnC. turn up D. turn ff
be wrried abutbe wrried abut意为“担心”。相当于wrry abut意为“为…担心”，wrried是形容词，意为“担忧的，焦虑的”。The wman seems wrried abut smething.
This methd is nt nly cruel, but als harmful t the envirnment.这种方法不仅残酷，而且对环境有害。nt nly…but als…意为“不仅……而且……”,用于连接两个表示并列关系的成分，着重强调后者，其中的als有时可以省略。She nt nly plays well, but als writes music.Nt nly men but als wmen were chsen.He wrks nt nly n weekdays but n Sundays as well.
【注意】①若连接两个成分作主语，其谓语通常与靠近的主语保持一致。Nt nly yu but als he has t leave.②若连接两个句子，nt nly后面的句子要用倒装。Nt nly did he speak mre crrectly, but he spke mre easily.
If their numbers drp t lw, it will bring danger t all cean life.如果它们的数量降至太低，会给所有海洋生物带来危险。if引导的是条件状语从句，谓语动词使用一般现在时代替一般将来时，主句使用一般将来时。If it desn’t rain tmrrw, we will g fishing.
【活学活用】（1）If farmers trees and frests, giant pandas _______nwhere t live.A. cut dwn; haveB. will cut dwn; will haveC. will cut dwn; haveD. cut dwn; will have（2）It will be hard fr us t get up in the mrning if we _______t bed t late.A. g B. went C. will g D. have gne
S far, n scientific studies have shwn that shark fins are gd fr health, s why eat them?到目前为止，没有科学研究显示鲨鱼鳍对健康有好处，所以为什么吃它们呢？（1）s far意为“到目前为止”，主句时态使用现在完成时；句中that引导的是宾语从句，作动词shwn的宾语。（2）be gd fr…意为“对……有好处”。
【活学活用】（1）—What d yu think f the new freign teacher Thmsn?—Pretty gd. I think he__________a great jb s far.A. des B. didC. has dne D. was dne（2）I think drinking milk is gd_________ur health.A. fr B. t C. with D. at
It’s difficult fr parents with yung children t use public transprtatin…对于有小孩子的父母来说，使用公共交通工具很难……本句为“It is+adj.+fr/f sb.t d sth.”结构，其中it作形式主语，动词不定式作句子的真正主语。【拓展】在句型“It’s+adj.+fr/f sb. t d sth.”中，如果形容词描述的是事物，则用fr;如果形容词指人的品质或特征，则用f。It’s hard fr us t finish the wrk n time.It’s kind f yu t help me.
【活学活用】1.单项选择（1）It’s really________yu t drive s fast n such a rainy day. Slw dwn!A. crazy fr B. crazy fC. wise fr D. wise f（2）It’s difficult________him_________wrk ut the prblem.A. fr; t B. f; tC. t; fr D. t; f
【活学活用】2.根据汉语完成句子（1）玩电脑游戏很有趣。_____________________________________________.（2）回答这个问题很容易。_____________________________________________.
It’s interesting t play cmputer games
It’s easy t answer the questin
transprtatin
Useful expressins
shark, fin, cruel, harmful, chain, ecsystem, industry, law, scientific, affrd, reusable, transprtatin
a passage abut sharks
be harmful t, at the tp f, the fd chain, take part in, turn ff, pay fr, take actin
Talk abut pllutin and envirnmental prtectin.
能够正确区分和使用以下语法结构：现在进行时、 used t、被动语态、现在完成时、情态动词等。
根据句意及首字母提示完成句子1. The by is sleeping. Please t ff the radi.2. The fd is free. Yu dn’t have t p fr it.3. It’s t expensive! We can’t a it.4. Last week they t part in the vluntary activity in the nursing hme.5. The plice tk a quickly and prevented the bad guy frm cmmitting crimes.
用所给词的适当形式完成句子1. All the wild animals shuld ______________ (prtect) very well.2. — Are Jim and Mike in the classrm? —N. They ____________ (play)tennis ver there.3. The rubbish in the park __________ (clean)up every day.4. — Hw lng ________ yu _________ (wrk) in the Ocean Park? —Since 10 years ag.5. Many students used t _____(be) tired because f thse after-schl classes.
be prtected
are playing
have wrked
阅读短文，用适当的词或括号里所给词的适当形式填空。In rder t prtect ur envirnment, we shuld _________ (turn) ff the lights when we leave a rm. We shuld reuse bks at schl, stp riding in cars, turn ff the shwer while we ____________ (wash)ur hair and s n. We had better nt use paper napkins. When we g shpping, we _____________ (nt, use) plastic bags, and we can take ur wn clth bags.Did yu use t ________(thrw)away ld r waste things? __________ yu ever __________ (think) abut hw they can be reused well? Sme peple wh have creative mind use glass bttles and rcks _________ (make) useful things fr everyday life. Sme artists use irn and ther metals r materials frm ld cars t make beautiful art pieces.
are washing
shuldn’t use
Their ppular wrks ________ (see) in art shps arund the city nw. If yu have a little creativity, many waste things can ____________ (bring)back t life. The president f the Help Save Our Planet Sciety ever ________ (say), “Peple wh pay mre attentin t prtecting ur envirnment ________ (be) an inspiratin t us.”
1.Write a shrt passage abut prtecting the earth accrding t yur discussin in 4c. e.g. I think that everyne shuld use public transprtatin. It’s nt nly cnvenient but als …
2. Preview the new wrds in Sectin B (1a-1e).
Learning gals
1. Wrds: shark, fin, cruel, harmful, chain, ecsystem, industry, law, scientific, affrd, reusable, transprtatin
3. Reading：a passage abut sharks
2. Useful expressins: be harmful t, at the tp f, the fd chain, take part in, turn ff, pay fr, take actin
4. Functins：Talk abut pllutin and envirnmental prtectin.
5. Grammar：能够正确区分和使用以下语法结构：现在进行时、 used t、被动语态、现在完成时、情态动词等。
D yu knw any endangered animals?
Siberian Tiger
Lynx pardinus
Galapags penguin
green turtle
We shuld try ur best t prtect animals.
Hw can we prtect them? Discuss in yur grup.
What d yu knw abut sharks?D yu think sharks are endangered? Why?What d yu think might have caused a fall in the number f sharks?
Read the passage in 3a quickly and answer the questins.
Sharks are at the tp f the fd chain in the cean’s ecsystem.
Yes, I think sharks are endangered. Because peple catch sharks, they cut ff their fins and thrw the shark back int the cean. Withut a fin, a shark can n lnger swim and slwly dies.
Peple catch sharks and cut ff their fins and thrw them back int the cean. Withut a fin, a shark dies.
What d yu think might have caused a fall in the number f sharks?
D yu think sharks are endangered? Why?
What d yu knw abut sharks?
3a Read the passage abut sharks and cmplete the fact sheet belw.
in suthern China
arund 70 millin
t develp laws t stp the sale f shark fins.
WildAid and the WWF
WWF (世界自然基金会) 英文全称作Wrld Wide Fund Fr Nature,是享有国际盛誉、全球最大的独立性非政府环境保护组织之一。这一国际组织成立于1961年，致力于保护世界生物多样性、确保可再生自然资源的可持续利用，以及推动降低污染和减少浪费性消费的行动。迄今，该组织在六大洲的153个国家发起或完成了约12,000个环保项目。
WildAid (美国野生救援协会) 是一个非营利性的动物及栖息地环境保护机构，1999年在美国注册，总部设在美国旧金山，负责监控和协调世界各国各个项目开展的情况。它在纽约、曼谷、伦敦、华盛顿、北京、海参崴等地设有办事处。这一机构的宗旨是世界范围的野生动物保护及救助，其重要工作之一是野生动物保护行动 (ACAP)。
1. Many peple d nt realize they are killing a whle shark ______ they enjy a bwl f shark fin sup.2. Sharks are at the tp f the fd chain, ________ if their numbers drp, the cean’s ecsystem will be in danger.3. Many think that sharks are t strng t be endangered, _______ they are wrng.
3b Read the passage again and fill in the blanks with the wrds in the bx.
s althugh if but when
4. ________ there are n scientific studies t supprt this, a lt f peple believe that shark fins are gd fr health.5. Sharks may disappear ne day _______ we d nt d smething t stp the sale f shark fins.
What des the wrd “they” refer t accrding t the passage?
1. When peple catch sharks, they cut ff their fins and thrw the sharks back int the cean.
2. Many believe that sharks can never be endangered because they are the strngest in their fd chain.
3. They have even asked gvernments t develp laws t stp the sale f shark fins.
( )
( )
envirnment prtectin grups
Listen and read.
Save the Sharks!Many have heard f shark fin sup. This famus and expensive dish is especially ppular in suthern China. But d yu realize that yu’re killing a whle shark each time yu enjy a bwl f shark fin sup?
When peple catch sharks, they cut ff their fins and thrw the sharks back int the cean. This is nt nly cruel, but als harmful t the envirnment. Withut a fin, a shark can n lnger swim and slwly dies. Sharks are at the tp f the fd chain in the cean’s ecsystem. If their numbers drp t lw, it will bring danger t all cean life. Many believe that sharks can never be endangered because they are the strngest in their fd chain. But in fact, arund 70 millin sharks are caught and traded in this industry every year. The numbers f sme kinds f sharks have fallen by ver 90 percent in the last 20 t 30 years.
Envirnmental prtectin grups arund the wrld, such as WildAid and the WWF, are teaching the public abut “finning”. They have even asked gvernments t develp laws t stp the sale f shark fins. S far, n scientific studies have shwn that shark fins are gd fr health, s why eat them? Help save the sharks!
Fill in the blanks accrding t the passage.
Sme peple like t eat shark fin sup, especially in China. But getting the shark fin is very . When peple catch sharks, they their fins and thrw the sharks back int the cean. The sharks slwly die because they can’t withut fins. And it is als t the envirnment. Sharks are at the f the fd chain. If the number f sharks drps t lw, it will break the balance f the nature. Please say n t eating shark fin sup, and take actin t save the sharks!
提出问题：吃鱼翅就是杀害一整头鲨鱼(Para.1)
shark fin sup is ppular in suthern Chinaa bwl f shark fin sup=killing a whle shark
解决问题：国际环保组织号召反对“猎翅”(Para.3)
cut ff their fins and thrw the sharks back int the cean
cruel and harmful t the envirnment
arund 70 millin sharks are caught and traded every year
bring danger t all cean life
the numbers f sme kinds f sharks have fallen by ver 90 percent in the last 20 t 30 years
分析问题：为什么要阻止“猎翅” (Para.2)
envirnmental prtectin grups
n scientific studies have shwn that shark fins are gd fr health
teaching the public abut “finning”asked gvernments t develp laws t stp the sale f shark fins
The structure f the passage
Read the fllwing sentences and grammar items.
Grammar Fcus
动词-ing形式的构成
一般情况下，在动词词尾后加-ing。g → ging。以不发音的e结尾的动词，去掉e加 -ing。 have → having。以重读闭音节结尾的动词，末尾只有一个辅音字母，双写这个辅音字母，再加 -ing。 stp → stpping。
一般情况下，在动词后加-ed。wrk → wrked。在以e结尾的动词后只加 -d。clse → clsed。在以辅音字母加y结尾的动词，应将y改为i再加ed。study → studied。以重读闭音节结尾的动词，要双写末尾的辅音字母再加-ed。stp → stpped。不规则动词的过去分词: AAA型 put put put AAB型 beat beat beaten ABA型 becme became becme ABB型 get gt gt/gtten ABC型 begin began begun
主动语态和被动语态的区别
主动语态表示主语是动作的执行者。被动语态表示主语是动作的承受者，即行为动作的对象。I cleaned my rm. → My rm was cleaned by me.I saw him crss the rad and enter the shp. → He was seen t crss the rad and enter the shp.
在含有使役动词 (make, let等) 或感官动词 (see, watch, ntice, hear等) 的主动语态的句子中，这些词后常跟省略t的动词不定式，但是改为被动语态时则要把省去的t还原。
被动语态的构成：be + 过去分词一般现在时被动语态：am/is/are + 过去分词一般过去时被动语态：was/ were + 过去分词一般将来时被动语态：will be/ is ging t be + 过去分词情态动词的被动语态：can/culd/may/might/shuld/must + be + 过去分词
1. 情态动词通常无人称和数的变化。2. 情态动词后接动词原形。3. 情态动词有：can/culd能够；may/might可能、可以；need需要； have t不得不；wuld愿意、将要；shall将(第一人称)； shuld应该；must必须
used t意为“过去常常做某事” ，后接动词原形。used t句型的否定句形式：didn’t use tused t句型的一般疑问句的形式：Did + 主语 + use t t d表示过去常常做某事，而现在往往不做了；be used t ding表示习惯于做某事。
4a Fill in the blanks with the crrect frms f the verbs in brackets.
Je: ______ yu ever ________ (take) part in an envirnmental prject? Ken: Yes, I have. I _______ (help) with a Clean-Up Day last year. It was __________ (cnsider) the biggest clean-up prject this city______ ever ________ (have). Je: Hw many peple ________ (take) part?
Ken: I ___________ (think) mre than 1,000 peple ______(cme) t help ut. Je: That’s fantastic! I guess everyne in this city is ______ (try) t imprve the envirnment. Ken: Yes, we can’t affrd t________ (wait) any lnger t take actin!
Peple _________ think that big things__________________ be dne t save the earth. Many frget that saving the earth begins with small things. Fr example, yu ______________ save electricity by turning ff the lights when yu leave a rm. Yu _______________ als use reusable bags instead f plastic bags.
4b Fill in the blanks with the apprpriate mdal verbs frm the bx.
can wuld culd have t shuld must may/ might
shuld/have t/must
can/culd/shuld
I think it’s a great idea that yu nw _______ pay fr plastic bags in sme stres. And instead f driving t schl r wrk, yu _______________ ride yur bike r walk. If it’s far, yu __________ take the bus. All these small things __________ add up and becme big things that ______________ imprve the envirnment. Let’s take actin nw!
wuld/can/culd
4c Make a list f things that peple can d t help the envirnment and discuss yur list with yur partner.
I think that everyne shuld use public transprtatin.
I disagree. It’s difficult fr parents with yung children t use public transprtatin ...
Language pints
harmfulharmful为形容词。意为“有害的”。常用作be harmful t，意为“对……是有害的”，与be bad fr为同义词。Smking is bad fr yur health.【拓展】①harm n.危害。常用作d harm t，意为“对……有害”。②harm v.有危害。常用作harm sb./sth.，意为“对……有害”。Reading in the sun des harm t yur eyes.=Reading in the sun harms yur eyes.
affrdaffrd为动词，意为“承担得起；负担；提供”。用法如下：(1)与 can, be able t等连用，表示“担负得起”某事或某物的费用、损失、后果等，或表示“抽得出”时间等，后面通常可接名词、代词、不定式等（多用于否定句或疑问句）。I can’t affrd (t buy)a new cat.He can’t affrd the time fr it.He says he really can’t affrd t wait anther day.
（2）表示“提供”“给予”，其后可以接双宾语（直接宾语通常为抽象概念），若双宾语交换位置，要用介词 t（此时无需连用 can, be able t等）。His visit affrds us great pleasure.=His visit affrds great pleasure t us.
affrd v.承担得起（后果）；买得起We can’t affrd t wait any lnger t take actin!I dn’t have enugh mney, s I can’t affrd the new huse.affrd sth.表示“买得起/承受得起某物”，affrd t d sth.表示“有能力做某事/负担得起做某事”。
【活学活用】1.单项选择—Angela, yu are ging t buy a flat here, aren’t yu?—Yes, but I can’t __________an expensive ne.A. spend B. cst C. pay D. affrd2.根据汉语意思完成句子我买得起这辆轿车。I can _________________ the car.
affrd t buy
turn ff 关掉Yu can save electricity by turning ff the lights when yu leave a rm.【拓展】turn的相关短语：turn n打开；turn up调大；turn dwn调小
【活学活用】—D yu knw the latest infrmatin abut Tianjin prt fire f truth?—I’ve n idea. Let’s__________the TV t watch the news prgramme.A. turn n B. turn dwnC. turn up D. turn ff
be wrried abutbe wrried abut意为“担心”。相当于wrry abut意为“为…担心”，wrried是形容词，意为“担忧的，焦虑的”。The wman seems wrried abut smething.
This methd is nt nly cruel, but als harmful t the envirnment.这种方法不仅残酷，而且对环境有害。nt nly…but als…意为“不仅……而且……”,用于连接两个表示并列关系的成分，着重强调后者，其中的als有时可以省略。She nt nly plays well, but als writes music.Nt nly men but als wmen were chsen.He wrks nt nly n weekdays but n Sundays as well.
【注意】①若连接两个成分作主语，其谓语通常与靠近的主语保持一致。Nt nly yu but als he has t leave.②若连接两个句子，nt nly后面的句子要用倒装。Nt nly did he speak mre crrectly, but he spke mre easily.
If their numbers drp t lw, it will bring danger t all cean life.如果它们的数量降至太低，会给所有海洋生物带来危险。if引导的是条件状语从句，谓语动词使用一般现在时代替一般将来时，主句使用一般将来时。If it desn’t rain tmrrw, we will g fishing.
【活学活用】（1）If farmers trees and frests, giant pandas _______nwhere t live.A. cut dwn; haveB. will cut dwn; will haveC. will cut dwn; haveD. cut dwn; will have（2）It will be hard fr us t get up in the mrning if we _______t bed t late.A. g B. went C. will g D. have gne
S far, n scientific studies have shwn that shark fins are gd fr health, s why eat them?到目前为止，没有科学研究显示鲨鱼鳍对健康有好处，所以为什么吃它们呢？（1）s far意为“到目前为止”，主句时态使用现在完成时；句中that引导的是宾语从句，作动词shwn的宾语。（2）be gd fr…意为“对……有好处”。
【活学活用】（1）—What d yu think f the new freign teacher Thmsn?—Pretty gd. I think he__________a great jb s far.A. des B. didC. has dne D. was dne（2）I think drinking milk is gd_________ur health.A. fr B. t C. with D. at
It’s difficult fr parents with yung children t use public transprtatin…对于有小孩子的父母来说，使用公共交通工具很难……本句为“It is+adj.+fr/f sb.t d sth.”结构，其中it作形式主语，动词不定式作句子的真正主语。【拓展】在句型“It’s+adj.+fr/f sb. t d sth.”中，如果形容词描述的是事物，则用fr;如果形容词指人的品质或特征，则用f。It’s hard fr us t finish the wrk n time.It’s kind f yu t help me.
【活学活用】1.单项选择（1）It’s really________yu t drive s fast n such a rainy day. Slw dwn!A. crazy fr B. crazy fC. wise fr D. wise f（2）It’s difficult________him_________wrk ut the prblem.A. fr; t B. f; tC. t; fr D. t; f
【活学活用】2.根据汉语完成句子（1）玩电脑游戏很有趣。_____________________________________________.（2）回答这个问题很容易。_____________________________________________.
It’s interesting t play cmputer games
It’s easy t answer the questin
transprtatin
Useful expressins
shark, fin, cruel, harmful, chain, ecsystem, industry, law, scientific, affrd, reusable, transprtatin
a passage abut sharks
be harmful t, at the tp f, the fd chain, take part in, turn ff, pay fr, take actin
Talk abut pllutin and envirnmental prtectin.
能够正确区分和使用以下语法结构：现在进行时、 used t、被动语态、现在完成时、情态动词等。
根据句意及首字母提示完成句子1. The by is sleeping. Please t ff the radi.2. The fd is free. Yu dn’t have t p fr it.3. It’s t expensive! We can’t a it.4. Last week they t part in the vluntary activity in the nursing hme.5. The plice tk a quickly and prevented the bad guy frm cmmitting crimes.
用所给词的适当形式完成句子1. All the wild animals shuld ______________ (prtect) very well.2. — Are Jim and Mike in the classrm? —N. They ____________ (play)tennis ver there.3. The rubbish in the park __________ (clean)up every day.4. — Hw lng ________ yu _________ (wrk) in the Ocean Park? —Since 10 years ag.5. Many students used t _____(be) tired because f thse after-schl classes.
be prtected
are playing
have wrked
阅读短文，用适当的词或括号里所给词的适当形式填空。In rder t prtect ur envirnment, we shuld _________ (turn) ff the lights when we leave a rm. We shuld reuse bks at schl, stp riding in cars, turn ff the shwer while we ____________ (wash)ur hair and s n. We had better nt use paper napkins. When we g shpping, we _____________ (nt, use) plastic bags, and we can take ur wn clth bags.Did yu use t ________(thrw)away ld r waste things? __________ yu ever __________ (think) abut hw they can be reused well? Sme peple wh have creative mind use glass bttles and rcks _________ (make) useful things fr everyday life. Sme artists use irn and ther metals r materials frm ld cars t make beautiful art pieces.
are washing
shuldn’t use
Their ppular wrks ________ (see) in art shps arund the city nw. If yu have a little creativity, many waste things can ____________ (bring)back t life. The president f the Help Save Our Planet Sciety ever ________ (say), “Peple wh pay mre attentin t prtecting ur envirnment ________ (be) an inspiratin t us.”
1.Write a shrt passage abut prtecting the earth accrding t yur discussin in 4c. e.g. I think that everyne shuld use public transprtatin. It’s nt nly cnvenient but als …
2. Preview the new wrds in Sectin B (1a-1e).
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