(共43张PPT)
Period 1
Unit 5 A delicate world
主题语境
人与自然—— 自然环境保护
1．________ n．遗产；传统
2．_______ n．栖息地
3．_________ v．(使)大大增加，(使)倍增
4．________ n．胃口，食欲
5．_____ n．大混乱；紊乱
6．_____ n．病毒
课时练案 单元词汇表(Words and expressions)
heritage
habitat
multiply
appetite
chaos
virus
7．________ v．(使)变小；(使)减少
8．____ n．夹子，陷阱
9．_______ v．突然增加
10．________ v．倒坍；塌下
11．substantial adj．____________
12．incident n．____
decrease
trap
explode
collapse
大量的，多的
事件
13．owe v．____________________________
14．nutrient n．____________
15．visual adj．______
16．session n．________
17．criterion n．__________
18．vast adj．______________
19．elsewhere adv．______
20．coexist v．__________
应该做；对……负有……的义务
养分，营养物
视觉的
一段时间
标准，准则
巨大的；广大的
在别处
共存，共处
1．Several safety accidents and _________(incident) related to campus safety have occurred recently in a number of places．
2．The roof of the house _________(collapse) under the weight of snow after the heavy snowfall yesterday．
3．Kiwi fruit (奇异果) is a very good fruit—it is rich in _________ (nutrient) and low in calories．
incidents
collapsed
nutrients
4．It is significant to create homes for species that are endangered because of losing their own natural ________(habitat)．
5．It is reported that the population of Chicago ____________ (decrease) over the years．
6．He still hasn't paid me the money he _____ (owe) me．
7．After two late night________(session)，the Security Council has failed to reach an agreement．
8．One of the many ________(criterion) that should be considered in the judgement of age is the condition of the teeth．
habitats
has decreased
owes
sessions
criteria
1．drama n．戏剧→_________ adj．戏剧性的；突然的→_____________ adv．显著地
2．subsequent adj．随后的；后来的→____________ adv．后来，随后
3．depart v．离开→_________ n．离开
4．compare v．比较，比喻，对照 n．比较，对照→___________ n．比较
dramatic
dramatically
subsequently
departure
comparison
5．rare adj．稀有的，罕见的→______ adv．稀少地；极少地
6．apparent adj．显而易见的；明白的→__________ adv．据说；看来，似乎
7．vary v．变化；不同→_________ n．差异；变化→_______ adj．不同的，各种各样的→_______ n．多样化，种类
8．danger n．危险→__________ adj．濒临灭绝的→________ v．使……处于险境；危及→_________ adj．危险的
9．secure adj．稳固的；安全的→________ n．安全
10．greet v．迎接；问候→________ n．问候，招呼
rarely
apparently
variation
various
variety
endangered
endanger
dangerous
security
greeting
1．They____________ (subsequent) heard that he had left the country after working there for 5 years．
2．With so many years going by，our hometown has changed _____________ (dramatic)．
3．Days before my _________ (depart) for Shanghai，my cousin made a prediction that I would fall in love with China．
4．I give my warmest _________ (greet) and best wishes to my old and new friends．
subsequently
dramatically
departure
greetings
5．The antelope population has recovered and in June，2015，the Tibetan antelope was removed from the __________ (endanger) species list．
6．In ___________ (compare) with the past，people nowadays need to keep learning in order to adapt to the changes．
7．The country recently issued an action plan for saving food to ensure its supplies and ________ (secure)．
8．It goes back at least to the 1980s，but it was ______ (rare) used until this year．
endangered
comparison
security
rarely
1．_______________ 与……和谐相处
2．____________________ 对……产生兴趣/食欲
3．____________ 失去控制
4．____________________ 从……下降到……
5．_____________ 结果，因此
in harmony with
develop an appetite for
out of control
decrease from ...to...
in consequence
6．_______ 结果是，证明是，原来是
7．_____________ 最终地，最后地；彻底地，一次了结地
8．_____________________ (认为)应该为某人做某事
9．__________ 代表
10．________ 导致
11．____________ 与……共存
12．________ 作为回报
turn out
once and for all
owe it to sb．to do sth．
on behalf of
result in
coexist with
in return
1．His departure was totally unexpected and，_____________，no plans had been made for his replacement．
2．Humans should preserve biodiversity to protect nature and live _______________ it．
3．We need to settle this problem today _____________ because we have to do new tasks tomorrow．
in consequence
in harmony with
once and for all
4．He devotes himself to protecting wildlife without expecting anything ________．
5．He will participate in the national dancing competition __________ our school．
6．Continued greenhouse gas emissions will ________ further warming and long-lasting changes to the global climate．
in return
on behalf of
result in
1．apparently adv．据说；看来，似乎
[联想] ①obviously adv．明显地，显然地
②clearly adv．清晰地，明显地
③evidently adv．明显地，清楚地
词汇联想 由新知联想已知
2．vast adj．巨大的；广大的
[联想] ①huge adj．巨大的
②enormous adj．巨大的，极大的
③large adj．大的
3．result in导致
[联想] ①cause v．导致
②lead to导致，通向
③contribute to有助于，促成
④bring about引起，导致
①chaos n．大混乱；紊乱
②halfway adj．中间的，半途的
adv．在……的中间；在中途；到一半
the halfway point/stage中间点/阶段
课下预习 第一篇课文(Understanding ideas)
③strong winds强风
high winds大风
light winds微风
④stormy seas波涛汹涌的大海
⑤sculpt v．[熟词生义] 使具有某种形状
⑥contrast dramatically对比鲜明
contrast v．[熟词生义](靠近或作比较时)显出明显的差异，形成对比
contrast sharply相差甚远
dramatically adv．显著地；戏剧性地
⑦heritage n．遗产；传统
⑧fail to do sth．未能做某事
⑨native inhabitants本土动物；本地居民
inhabitant n．[C]栖居的动物；居民
⑩in harmony with...与……和谐相处
tell a different story说的情况迥然不同
story n．[熟词生义](真实情况的)叙述，描述
unknowingly adv．不知情地
rats and mice大大小小的老鼠
rat n．[C]大老鼠
mouse n．(pl．mice)老鼠，耗子
take over接管，接手
subsequently adv．后来，随后
develop an appetite for...对……产生兴趣/食欲
appetite n．胃口，食欲
loose adj．不受约束，未束缚，自由
multiply v．(使)大大增加，(使)倍增
explode v．突然增加
plentiful adj．大量的；众多的；充足的；丰富的
the number of...……的数量
in turn相应地，转而
take turns轮流
parakeet n．长尾(小)鹦鹉
in the 1970s在20世纪70年代
out of control失去控制，无法管理
remove...from...使……从……消失
remove v．使消失，去除，排除
virus n．[C]病毒
the flu virus流感病毒
a virus infection病毒感染
release v．释放
decrease from...to...从……减少到……
decrease v．(使)变小，(使)减少
[反义词]increase v．(使)增长，增加
in consequence结果
up to达到(某数量、程度等)
trap n．[C]夹子，陷阱
be used to do sth．被用来做某事
the departure from...从……离开
departure n．离开
turn out原来是；证明是；结果是
develop an immunity to...形成对……的免疫力
immunity n．免疫力
collapse v．倒坍；塌下
a substantial number of相当多的
substantial adj．大量的，多的
incident n．[C]事件
sth．needs doing某事需要被做
once and for all最终地，最后地；彻底地，一次了结地
tackle v．应付，处理，解决(难题或局面)
very adj．[熟词生义](特指人或事物)正是的，恰好的，同一的
invading species入侵物种
invade v．(尤指造成损害或混乱地)涌入，侵袭
invasion n．涌入
intervention n．干预，介入
owe it to...to do sth．(认为)应该为……做某事
owe v．应该做；对……负有……的义务
postscript n．附言
pest-free adj．没有害兽/鸟/虫的
pest n．有害小动物；害虫
ecology n．生态
on the road to recovery走上复苏之路
recovery n．改善；回升；复苏
recover v．复原，恢复常态
MACQUARIE ISLAND：from Chaos①to Conservation
I am standing on Macquarie Island，in the South-west Pacific Ocean，halfway② between Australia and Antarctica．Strong winds③ and stormy seas④ have helped sculpt⑤ its long，thin shape．The green grass and bare rock of its landscape contrast dramatically⑥，[1]giving it a wild and natural beauty．No visitor would think it surprising that the
island is a UNESCO World Heritage⑦ Site．[2]Nor would they fail to⑧ imagine how its native inhabitants⑨， including royal penguins，king penguins，and elephant seals，existed in perfect harmony with⑩ their natural habitat for thousands of years．
[1]此处为动词-ing形式短语作结果状语。
[2]本句为主从复合句。主句中，否定词nor位于句首，句子采用了部分倒装语序；how引导宾语从句，作imagine的宾语。
But the island's more recent history tells a different story ．[3]It's a tragic story that began in 1810 when humans arrived on the island． In their ships they unknowingly brought rats and mice ．These small animals quickly took over the island，[4]eating the birds' eggs and attacking baby birds．Cats were brought to the island to control the rats and mice．Unfortunately，the cats subsequently developed an appetite for the birds，too．
[3]本句中的it指的是前面的a different story。that在此引导定语从句，修饰先行词a tragic story；该定语从句中又包含一个when引导的定语从句，修饰in 1810，when在此定语从句中作时间状语。
[4]此处的“eating the birds' eggs”和“attacking baby birds”是and连接的两个并列的动词-ing形式短语，在句中作伴随状语。
Meanwhile，rabbits were introduced to the island as a source of food for humans．Loose on the island，they did what rabbits do best—they multiplied rapidly and began eating the native vegetation and digging holes，which caused soil erosion．The exploding rabbit population provided plentiful food for the cats，meaning that the number of cats also increased．This in turn led to more cats hunting the birds．The end result was that parakeets ，once large in number and native to the island，died out in 1891．
Even after Macquarie Island became an official nature reserve in the 1970s ，the rabbits remained out of control ．Experts felt it necessary to come up with a plan to remove all the rabbits from the island．[5]With this goal in mind，a virus was released onto the island．But although the virus caused the rabbit population to decrease from 130，000 to around 10，000，it also meant less food for the cats．The cats in consequence turned their attention—and their stomachs—back to the native birds，killing up to 60，000 each year．In the 1980s，traps and dogs were used to catch the cats．The last Macquarie Island cat was caught in 2000．
[5]此处属于with复合结构，介词短语in mind作宾补，该结构在句中作状语。
[6]But as the saying goes，“While the cat's away，the mice will play．”With the departure of the cats from the island，the mouse and rat population started to increase．And remember those 10，000 or so rabbits It turned out that they developed an immunity to the virus，and their numbers exploded once again．Then，in 2006，the rabbits' digging caused some land to collapse ，and killed a substantial number of penguins．This incident made it clear that the rat，mouse and rabbit problem needed solving once and for all ．
[6]此处是as引导的非限制性定语从句，as代替后面的句子。
So，I am here on Macquarie Island to participate in the programme to tackle this very problem．The first step involved poison being dropped from helicopters．The next step is to remove the last remaining invading species ，and that's where I come in—with my dogs．They have been trained to find every last one，without harming the native animals．This intervention is a long，much-delayed ending to a sad story，but we humans owe it to the island to give it a happy ending．
Postscript ： In 2014，Macquarie Island was declared pest-free and the island's ecology is finally on the road to recovery ．
麦夸里岛：从混乱不堪到精心保护
我正站在麦夸里岛上，这里位于太平洋的西南部，澳大利亚和南极洲的中间。强风和惊涛骇浪将海岛塑造成现在狭长的形状。绿草和光秃秃的岩石形成的景观反差巨大，使海岛呈现出一种狂野和天然的美。这座岛是联合国教科文组织确立的世界遗产，游客们都认为名副其实。他们也不难想象出，数千年来，包括帝企鹅、王企鹅和象海豹在内的当地动物是如何与其自然栖息地完美地和谐共存的。
但是，这座岛近些年的遭遇则是截然不同的故事。悲剧从人类1810年来到这座岛屿开始。他们不经意间随船带来了大鼠和小鼠。这些小动物很快就占领了岛屿，它们吃鸟蛋并攻击幼鸟。为控制鼠患，人们带来了猫，但不幸的是，猫随后也开始以鸟为食。
与此同时，人们把兔子引进岛上作为一种食物来源。由于在岛上放任其生存，兔子做了自己最擅长的事——飞快地繁殖，它们开始吃当地植被并挖洞，造成了土壤侵蚀。爆炸式增长的兔子数量给猫提供了充足的食物，这意味着猫的数量也增加了，相应地就有更多的猫捕食鸟类。最终结果是，曾经数量众多的当地物种长尾小鹦鹉在1891年灭绝。
即使在20世纪70年代麦夸里岛成为官方自然保护区后，兔子仍然不受控制。专家认为，必须想办法清除岛上所有的兔子。怀着这个目标，人们投放了一种病毒到岛上。然而，虽然病毒使得兔子的数量从130 000只降到约10 000只，但这也意味着猫的食物变少了。因此，猫把注意力和胃口重新转向了当地鸟类，每年捕食多达
60 000只。20世纪80年代，人们利用捕猎夹和狗来抓猫。2000年，麦夸里岛上的最后一只猫被抓。
但正如俗语所说，“山中无老虎，猴子称大王”。猫从岛上消失了，小鼠和大鼠的数量便开始增加。还记得那10 000只左右的兔子吗？它们最终对病毒产生了免疫，于是它们的数量又一次激增。随后，在2006年，兔子挖的洞造成一些土地坍塌，导致大量企鹅死亡。这一事件清楚地表明，大鼠、小鼠和兔子泛滥的问题需要一次彻底地解决。
所以，正是为了解决这个问题，我来到麦夸里岛上参与一项行动。行动的第一步利用了直升机向岛上投放毒药。下一步是清除最后残存的入侵物种，这就是我的工作了——和我的狗一起。这些狗受训去寻找剩下的每一只老鼠和兔子，同时又不伤害当地动物。这次干预行动是这场悲剧漫长而屡被贻误的大结局，但这是我们人类应该做的，我们亏欠这座岛屿一个美好的结局。
附言：2014年麦夸里岛正式宣布已无有害生物，岛上的生态环境终于走上了恢复之路。
THANKSPeriod 1 单元词汇表(Words and expressions)
1．___________ n．遗产；传统 2．___________ n．栖息地 3．___________ v．(使)大大增加，(使)倍增 4．___________ n．胃口，食欲 5．___________ n．大混乱；紊乱 6．___________ n．病毒 7．___________ v．(使)变小；(使)减少 8．___________ n．夹子，陷阱 9．___________ v．突然增加 10．___________ v．倒坍；塌下 11．substantial adj．___________ 12．incident n．___________ 13．owe v．___________ 14．nutrient n．___________ 15．visual adj．___________ 16．session n．___________ 17．criterion n．___________ 18．vast adj．___________ 19．elsewhere adv．___________ 20．coexist v．___________ 1．Several safety accidents and________(incident) related to campus safety have occurred recently in a number of places． 2．The roof of the house________(collapse) under the weight of snow after the heavy snowfall yesterday． 3．Kiwi fruit (奇异果) is a very good fruit—it is rich in_________(nutrient) and low in calories． 4．It is significant to create homes for species that are endangered because of losing their own natural____________ (habitat)． 5．It is reported that the population of Chicago_____________(decrease) over the years． 6．He still hasn't paid me the money he_________(owe) me． 7．After two late night____________ (session)，the Security Council has failed to reach an agreement． 8．One of the many________(criterion) that should be considered in the judgement of age is the condition of the teeth．
1．drama n．戏剧→________adj．戏剧性的；突然的→________adv．显著地 2．subsequent adj．随后的；后来的→________adv．后来，随后 3．depart v．离开→________n．离开 4．compare v．比较，比喻，对照 n．比较，对照→_______n．比较 5．rare adj．稀有的，罕见的→________adv．稀少地；极少地 6．apparent adj．显而易见的；明白的→________adv．据说；看来，似乎 7．vary v．变化；不同→________n．差异；变化→________adj．不同的，各种各样的→________n．多样化，种类 8．danger n．危险→________adj．濒临灭绝的→________v．使……处于险境；危及→________adj．危险的 9．secure adj．稳固的；安全的→________n．安全 10．greet v．迎接；问候→________n．问候，招呼 1．They_________(subsequent) heard that he had left the country after working there for 5 years． 2．With so many years going by，our hometown has changed_________(dramatic)． 3．Days before my_________(depart) for Shanghai，my cousin made a prediction that I would fall in love with China． 4．I give my warmest_________(greet) and best wishes to my old and new friends． 5．The antelope population has recovered and in June，2015，the Tibetan antelope was removed from the_________(endanger) species list． 6．In_________(compare) with the past，people nowadays need to keep learning in order to adapt to the changes． 7．The country recently issued an action plan for saving food to ensure its supplies and_________(secure)． 8．It goes back at least to the 1980s，but it was________(rare) used until this year．
1．________________与……和谐相处 2．________________对……产生兴趣/食欲 3．________________失去控制 4．________________从……下降到…… 5．________________结果，因此 6．________________结果是，证明是，原来是 7．________________最终地，最后地；彻底地，一次了结地 8．________________(认为)应该为某人做某事 9．________________代表 10．________________导致 11．________________与……共存 12．________________作为回报 1．His departure was totally unexpected and，_______________，no plans had been made for his replacement． 2．Humans should preserve biodiversity to protect nature and live_________________it． 3．We need to settle this problem today_________________because we have to do new tasks tomorrow． 4．He devotes himself to protecting wildlife without expecting anything________________． 5．He will participate in the national dancing competition_________________our school． 6．Continued greenhouse gas emissions will___________________further warming and long lasting changes to the global climate．
由新知联想已知
1．apparently adv．据说；看来，似乎 [联想] ①obviously adv．明显地，显然地 ②clearly adv．清晰地，明显地 ③evidently adv．明显地，清楚地 2．vast adj．巨大的；广大的 [联想] ①huge adj．巨大的 ②enormous adj．巨大的，极大的 ③large adj．大的 3．result in导致 [联想] ①cause v．导致 ②lead to导致，通向 ③contribute to有助于，促成 ④bring about引起，导致
第一篇课文(Understanding ideas)
①chaos n．大混乱；紊乱
②halfway adj．中间的，半途的
adv．在……的中间；在中途；到一半
the halfway point/stage中间点/阶段
③strong winds强风
high winds大风
light winds微风
④stormy seas波涛汹涌的大海
⑤sculpt v．[熟词生义] 使具有某种形状
⑥contrast dramatically对比鲜明
contrast v．[熟词生义](靠近或作比较时)显出明显的差异，形成对比
contrast sharply相差甚远
dramatically adv．显著地；戏剧性地
⑦heritage n．遗产；传统
⑧fail to do sth．未能做某事
⑨native inhabitants本土动物；本地居民
inhabitant n．[C]栖居的动物；居民
⑩in harmony with．．．与……和谐相处
tell a different story说的情况迥然不同
story n．[熟词生义](真实情况的)叙述，描述
unknowingly adv．不知情地
rats and mice大大小小的老鼠
rat n．[C]大老鼠
mouse n．(pl．mice)老鼠，耗子
take over接管，接手
subsequently adv．后来，随后
develop an appetite for．．．对……产生兴趣/食欲
appetite n．胃口，食欲
loose adj．不受约束，未束缚，自由
multiply v．(使)大大增加，(使)倍增
explode v．突然增加
plentiful adj．大量的；众多的；充足的；丰富的
the number of．．．……的数量
in turn相应地，转而
take turns轮流
parakeet n．长尾(小)鹦鹉
in the 1970s在20世纪70年代
out of control失去控制，无法管理
remove．．．from．．．使……从……消失
remove v．使消失，去除，排除
virus n．[C]病毒
the flu virus流感病毒
a virus infection病毒感染
release v．释放
decrease from．．．to．．．从……减少到……
decrease v．(使)变小，(使)减少
[反义词]increase v．(使)增长，增加
in consequence结果
up to达到(某数量、程度等)
trap n．[C]夹子，陷阱
be used to do sth．被用来做某事
the departure from．．．从……离开
departure n．离开
turn out原来是；证明是；结果是
develop an immunity to．．．形成对……的免疫力
immunity n．免疫力
collapse v．倒坍；塌下
a substantial number of相当多的
substantial adj．大量的，多的
incident n．[C]事件
sth．needs doing某事需要被做
once and for all最终地，最后地；彻底地，一次了结地
tackle v．应付，处理，解决(难题或局面)
very adj．[熟词生义](特指人或事物)正是的，恰好的，同一的
invading species入侵物种
invade v．(尤指造成损害或混乱地)涌入，侵袭
invasion n．涌入
intervention n．干预，介入
owe it to．．．to do sth．(认为)应该为……做某事
owe v．应该做；对……负有……的义务
postscript n．附言
pest free adj．没有害兽/鸟/虫的
pest n．有害小动物；害虫
ecology n．生态
on the road to recovery走上复苏之路
recovery n．改善；回升；复苏
recover v．复原，恢复常态
MACQUARIE ISLAND：from Chaos①to Conservation
I am standing on Macquarie Island，in the South west Pacific Ocean，halfway② between Australia and Antarctica． Strong winds③ and stormy seas④ have helped sculpt⑤ its long，thin shape． The green grass and bare rock of its landscape contrast dramatically⑥，[1]giving it a wild and natural beauty． No visitor would think it surprising that the island is a UNESCO World Heritage⑦ Site． [2]Nor would they fail to⑧ imagine how its native inhabitants⑨， including royal penguins，king penguins，and elephant seals，existed in perfect harmony with⑩ their natural habitat for thousands of years．
[1]此处为动词 ing形式短语作结果状语。
[2]本句为主从复合句。主句中，否定词nor位于句首，句子采用了部分倒装语序；how引导宾语从句，作imagine的宾语。
But the island's more recent history tells a different story ． [3]It's a tragic story that began in 1810 when humans arrived on the island． In their ships they unknowingly brought rats and mice ． These small animals quickly took over the island，[4]eating the birds' eggs and attacking baby birds．Cats were brought to the island to control the rats and mice．Unfortunately，the cats subsequently developed an appetite for the birds，too．
[3]本句中的it指的是前面的a different story。that在此引导定语从句，修饰先行词a tragic story；该定语从句中又包含一个when引导的定语从句，修饰in 1810，when在此定语从句中作时间状语。
[4]此处的“eating the birds' eggs”和“attacking baby birds”是and连接的两个并列的动词 ing形式短语，在句中作伴随状语。
Meanwhile，rabbits were introduced to the island as a source of food for humans．Loose on the island，they did what rabbits do best—they multiplied rapidly and began eating the native vegetation and digging holes，which caused soil erosion． The exploding rabbit population provided plentiful food for the cats，meaning that the number of cats also increased． This in turn led to more cats hunting the birds． The end result was that parakeets ，once large in number and native to the island，died out in 1891．
Even after Macquarie Island became an official nature reserve in the 1970s ，the rabbits remained out of control ． Experts felt it necessary to come up with a plan to remove all the rabbits from the island．[5]With this goal in mind，a virus was released onto the island． But although the virus caused the rabbit population to decrease from 130，000 to around 10，000，it also meant less food for the cats． The cats in consequence turned their attention—and their stomachs—back to the native birds，killing up to 60，000 each year． In the 1980s，traps and dogs were used to catch the cats． The last Macquarie Island cat was caught in 2000．
[5]此处属于with复合结构，介词短语in mind作宾补，该结构在句中作状语。
[6]But as the saying goes，“While the cat's away，the mice will play．”With the departure of the cats from the island，the mouse and rat population started to increase． And remember those 10，000 or so rabbits It turned out that they developed an immunity to the virus，and their numbers exploded once again． Then，in 2006，the rabbits' digging caused some land to collapse ，and killed a substantial number of penguins． This incident made it clear that the rat，mouse and rabbit problem needed solving once and for all ．
[6]此处是as引导的非限制性定语从句，as代替后面的句子。
So，I am here on Macquarie Island to participate in the programme to tackle this very problem． The first step involved poison being dropped from helicopters． The next step is to remove the last remaining invading species ，and that's where I come in—with my dogs． They have been trained to find every last one，without harming the native animals． This intervention is a long，much delayed ending to a sad story，but we humans owe it to the island to give it a happy ending．
Postscript ： In 2014，Macquarie Island was declared pest free and the island's ecology is finally on the road to recovery ．
麦夸里岛：从混乱不堪到精心保护
我正站在麦夸里岛上，这里位于太平洋的西南部，澳大利亚和南极洲的中间。强风和惊涛骇浪将海岛塑造成现在狭长的形状。绿草和光秃秃的岩石形成的景观反差巨大，使海岛呈现出一种狂野和天然的美。这座岛是联合国教科文组织确立的世界遗产，游客们都认为名副其实。他们也不难想象出，数千年来，包括帝企鹅、王企鹅和象海豹在内的当地动物是如何与其自然栖息地完美地和谐共存的。
但是，这座岛近些年的遭遇则是截然不同的故事。悲剧从人类1810年来到这座岛屿开始。他们不经意间随船带来了大鼠和小鼠。这些小动物很快就占领了岛屿，它们吃鸟蛋并攻击幼鸟。为控制鼠患，人们带来了猫，但不幸的是，猫随后也开始以鸟为食。
与此同时，人们把兔子引进岛上作为一种食物来源。由于在岛上放任其生存，兔子做了自己最擅长的事——飞快地繁殖，它们开始吃当地植被并挖洞，造成了土壤侵蚀。爆炸式增长的兔子数量给猫提供了充足的食物，这意味着猫的数量也增加了，相应地就有更多的猫捕食鸟类。最终结果是，曾经数量众多的当地物种长尾小鹦鹉在1891年灭绝。
即使在20世纪70年代麦夸里岛成为官方自然保护区后，兔子仍然不受控制。专家认为，必须想办法清除岛上所有的兔子。怀着这个目标，人们投放了一种病毒到岛上。然而，虽然病毒使得兔子的数量从130 000只降到约10 000只，但这也意味着猫的食物变少了。因此，猫把注意力和胃口重新转向了当地鸟类，每年捕食多达60 000只。20世纪80年代，人们利用捕猎夹和狗来抓猫。2000年，麦夸里岛上的最后一只猫被抓。
但正如俗语所说，“山中无老虎，猴子称大王”。猫从岛上消失了，小鼠和大鼠的数量便开始增加。还记得那10 000只左右的兔子吗？它们最终对病毒产生了免疫，于是它们的数量又一次激增。随后，在2006年，兔子挖的洞造成一些土地坍塌，导致大量企鹅死亡。这一事件清楚地表明，大鼠、小鼠和兔子泛滥的问题需要一次彻底地解决。
所以，正是为了解决这个问题，我来到麦夸里岛上参与一项行动。行动的第一步利用了直升机向岛上投放毒药。下一步是清除最后残存的入侵物种，这就是我的工作了——和我的狗一起。这些狗受训去寻找剩下的每一只老鼠和兔子，同时又不伤害当地动物。这次干预行动是这场悲剧漫长而屡被贻误的大结局，但这是我们人类应该做的，我们亏欠这座岛屿一个美好的结局。
附言：2014年麦夸里岛正式宣布已无有害生物，岛上的生态环境终于走上了恢复之路。
Period 1
速记·重点词汇——牢记词形和词义
1．heritage 2．habitat 3．multiply 4．appetite 5．chaos 6．virus 7．decrease 8．trap 9．explode 10．collapse 11．大量的，多的 12．事件 13．应该做；对……负有……的义务 14．养分，营养物 15．视觉的 16．一段时间 17．标准，准则 18．巨大的；广大的 19．在别处 20．共存，共处
运用·语境填空——测试一下基本功
1．incidents 2．collapsed 3．nutrients 4．habitats 5．has decreased 6．owes 7．sessions 8．criteria
速记·派生词汇——牢记词形和词义
1．dramatic；dramatically 2．subsequently 3．departure 4．comparison 5．rarely 6．apparently 7．variation；various；variety 8．endangered；endanger；dangerous 9．security 10．greeting
运用·语境填空——测试一下基本功
1．subsequently 2．dramatically 3．departure 4．greetings 5．endangered 6．comparison 7．security 8．rarely
速记·重点短语——记牢搭配和意义
1．in harmony with 2．develop an appetite for 3．out of control 4．decrease from ．．．to．．． 5．in consequence 6．turn out 7．once and for all 8．owe it to sb．to do sth． 9．on behalf of 10．result in 11．coexist with 12．in return
运用·语境填空——测试一下基本功
1．in consequence 2．in harmony with 3．once and for all 4．in return 5．on behalf of 6．result in
1/1
