内容正文:
Unit 2 Wildlife Protection
教材全解(三)
urgency emergency carpet respond remote fur
。单元核心词汇
whale stir emotion skin initial step ban network
campaign staff worth
。单元同步语法
现在进行时和过去进行时的被动语态
⑦单元文章对话
重点句型讲练
教材同步词汇全解全练
重点1
单元词汇
l.emergency /i'm3:d3nsi/n.紧急情况;突发事件adj.紧急的;应急的
词形变化:emergent(adj.)紧急出现的;新兴的
辨析:emergency强调“突发事件”,如自然灾害、事故;urgency强调“紧迫
性”,如事情的紧急程度。
搭配:in an emergency在紧急情况下;emergency exit紧急出口;emergency room
急诊室
例句:The government declared a state of emergency.
We must prepare for any emergency.
2.respond/r'sppnd/vi.回应;作出反应
词形变化:response(m.)回应;反应;responsible(adj.)负责的;responsive
(adj.)反应迅速的
搭配:respond to对…作出反应;respond with以…回应
例句:The firefighters responded quickly to the call.
How did he respond to your question?
3.remote/r'mat/adj.遥远的;偏僻的;疏远的
词形变化:remotely(adv.)遥远地;remotely possible可能性极小
辨析:remote强调空间或时间上的“遥远”;distant更常用,语气稍弱。
搭配:remote control遥控器;remote area偏远地区;remote chance极小的机会
例句:They live in a remote village far from the city.
The chance of success is remote.
4.stir/st3:(r)/vt.&vi.(stirred,stirred)搅拌;搅动;激发;打动
词形变化:stirring(adj.)激动人心的;活跃的
搭配:stir up激起;引起;stir the pot搬弄是非;stir with用…搅拌
例句:she stirred the coffee with a spoon.
His speech stirred up strong emotions
5.emotion /I'men/n.情感;情绪;激情
词形变化:emotional(adj.)情绪化的;感人的;emotionally(adv.)情感上地
辨析:emotion指强烈的情感(如爱、恨、恐惧);feeling更广泛,包括身体感
觉。
搭配:mixed emotions百感交集;with emotion激动地;control one's emotions控
制情绪
例句:She spoke with deep emotion.
Music can express a wide range of emotions.
6.initial'u1/adj.最初的;开始的n.首字母
词形变化:initially(adv.)最初;开始
辨析:initial强调“起始阶段”;original强调“原始的、独创的”;first最常用。
搭配:initial stage初始阶段;initial plan初步计划;initial reaction最初反应
例句:The initial results of the experiment were encouraging,
Her initials are J.K.
7.ban/ben/vt.(banned,banned禁止;取缔n.禁令
词形变化:banned(adj.)被禁止的;banner(n.)横幅(注意不要混淆)
搭配:put a ban on禁止;lift a ban解除禁令;ban sb.from doing禁止某人做某事
例句:The government has banned smoking in public places.
There is a ban on hunting endangered animals.
8.campaign/kem'peIn/n.运动;战役vi.参加运动;领导运动
词形变化:campaigner(n.)运动参与者;竞选活动家
辨析:campaign指有组织的社会/政治运动;movement更强调群体行为。
搭配:launch a campaign发起运动;campaign for/against为/反对…而运动;
election campaign选举活动
例句:They organized a campaign to protect the environment.
She campaigned for animal rights.
9.inspire/m'spaIa(r)/vt.鼓舞;激励;启发思考
词形变化:inspiration(.)灵感;鼓舞人心的人/事物;inspired(adj.)受启发的;
inspiring(adj.)鼓舞人心的
搭配:inspire sb.to do sth.鼓舞某人做某事;be inspired by受到…启发;inspire
confidence激发信心
例句:His story inspired many young people to follow their dreams.
The teacher inspired a love of learning in her students.
10.survival/ss'vaIv/n.生存;存活;幸存事物
词形变化:survive(v.)幸存;survivor(n.)幸存者
搭配:survival skills生存技能;fight for survival为生存而战;survival of the fittest
适者生存
例句:Water is essential for human survival.
The accident was a miracle of survival.
ll.secure/sI'kjua(r))/adj.安全的;可靠的vt.获得;使安全
词形变化:security(n.)安全;保障;securely(adv.)安全地;
securely fastened
固定牢靠
辨析:secure强调“安全无忧”;safe更常用,指没有危险。
搭配:be secure from免受…威胁;secure a loan获得贷款;secure the door锁好
门
例句:We need to make our city more secure.
He managed to secure a job after graduation.
12.underline/nde'lan/vt.强调;使突出;在…下面划线
词形变化:underlining(n.)下划线:underline(v.)注意此处是及物动词。
辨析:underline本义是“划线”,引申为“强调”;emphasize是正式同义词;
stress语气更强。
搭配:underline the importance强调重要性;underline a word在单词下划线
例句:The report underlines the need for action.
Please underline the key sentences.
考点通关
单元词汇
(一)单句填空(用所给词的适当形式填空)
1.In case of
(emergency),please call 120 immediately.
2.The government should
(respond)quickly to the needs of the people.
3.The village is so
(remote)that it takes hours to get there.
4.The news
(stir)up a heated discussion among the students.
5.She tried hard to hide her
(emotion)when hearing the bad news.
6.The company's
(initially)plan turned out to be impractical.
7.Many countries have
(ban)single-use plastics to protect the environment.
8.The charity
(campaign)raised a lot of money for the homeless.
9.The teachers words
(inspire)confidence in her students
10.The
(survive)of the rare species depends on our efforts.
11.We must take measures to make the website more
(secure).
12.The accident
(underline)the importance of traffic safety.
13.He
(respond)to the challenge with courage.
14.After the earthquake,rescue teams rushed to the
(remotely)areas.
15.Her speech
(stir)a sense of responsibility in the audience.
(二)短文填空
In today's world,we face many 1.
(emergent)situations.For example,natural
disasters can create a state of 2.
(emergency).Governments must 3.
quickly to protect people's lives.In 4.
(remote)areas,communication may be
cut off,making rescue harder.Many environmental 5.
(campaign)have been
launched to protect wildlife.Some countries have 6.
(ban)the illegal trade of
animal products.This 7.
(underline)the importance of 8.
(survival)
for endangered species.To achieve long-term 9.
(secure),we need to
10.
(inspire)more people to join the efforts.The 11.
(initial)step is to
raise public awareness.Every small action can 12
(stir)up great changes.Let's
act now and 13.
(secure)a better future for all.
参考答案
1.emergency;2.respond;3.remote;4.stirred;5.emotions;6.initial;7.banned;
(一)单句填空
8.campaign;9.inspired;10.survival;11.secure;12.underlines;13.responded;
14.remote;15.stirred
1.emergent;2.emergency;3.respond;4.remote;5.campaigns;6.banned;
(二)短文填空
7.underlines;8.survival;9.security;10.inspire;11.initial;12.stir;13.secure
教材同步语法全解全练
重点1
现在进行时的被动语态
现在进行时的被动语态
项目
内容
表示此时此刻(或现阶段)正在被进行的动作,强调“此刻正在
定义
被…”。
1 The bridge is being repaired now.
肯定句:主语+am/is/are+being+过去分词+其他
结构
否定句:主语+am/is/are+not+being+过去分词+其他
疑问句:Am/Is/Are+主语+being+过去分词+其他?
1.常与now,at the moment,at present,,these days等时间状语连用。
2.注意与一般现在时被动语态的区别:
The room is cleaned every day.(习惯)
用法点拨
>The1 room is being cleaned now.(正在进行)
3.只有及物动词才有被动语态;不及物动词(如happen,appear,ise等)
无被动形式。
4.某些表示“状态、拥有、情感”的动词(如have,owm,love,like)一般
不用于进行时被动。
例句
Look!The food is being prepared for the party.
Are the tickets being sold online?
The project is not being discussed at the moment.
考点通关
现在进行时的被动语态
语法专练一:现在进行时的被动语态(8题)
1.Listen!The song
by the students in the classroom.
A.is sung
B.is being sung
C.has been sung
D.was sung
2.The new road
at present,so we have to take a detour.
A.is built
B.was built
C.is being built
D.has been built
3.-Why can't I enter the lab?-Because it
right now.
A.is cleaned
B.is being cleaned
C.was cleaned
D.has been cleaned
4.The patient
by the doctor carefully at the moment.
A.is examined
B.is being examined C.was examined
D.has been examined
5.Don't disturb him.He
for the speech.
A.prepares
B.is preparing
C.is being prepared
D.has prepared
6.The questions
by the students now,so please wait.
A.answer
B.are answering
C.are being
D.have been
answered
answered
7.This kind of medicine
in the factory these days.
A.produces
B.is produced
C.is being produced D.was produced
8.I can't use my phone because it
A.repairs
B.is repairing
C.is being repaired
D.has been repaired
过去进行时的被动语态
项目
内容
表示过去某个时刻或某段时间内正在被进行的动作,强调“过去某时正在
定义
被…”
例如:The letter was being written when I came in.
肯定句:主语+was/were+being+过去分词+其他
结构
否定句:主语+was/were+not+being+过去分词+其他
疑问句:Was/Were+主语+being+过去分词+其他?
用法点拨
l.常与过去具体时间点(如at that moment,.at8o'clock yesterday,.then)
或过去某时段(from8to10 last night)连用。
2.也可与when/while引导的时间状语从句连用,表示一个动作正在进行
时另一个动作发生。
The house was being painted when we arrived.
3.注意与一般过去时被动语态的区别:一般过去时被动表示“过去完成的
被动动作”;过去进行时被动强调“过去某时正在被做”。
The bridge was built in 2000
The bridge was being built at that time.
4.同样,只有及物动词能用于此结构。
At 9:00 last night,the show was being recorded.
例句
The children were being taken care of by their grandparents while their
parents were abroad.
Was the meeting being held when you left?
语法专练二:过去进行时的被动语态(8题)
用所给动词的适当形式填空
1.The car
(repair)at that time yesterday.
2.When I entered,the classroom
(clean)by the students.
3.The dinner
(prepare)while we were chatting
4.The painting
(copy)by the artist last week,but I'm not sure if it was
finished.
5.The game
(play)when it started to rain.
6.The windows
(wash)from 3 to 4 yesterday afternoon.
7.I could't use my computer because it
(fix)then.
8.The speech
(give)by a famous professor at that moment.
语法综合练习
(一)单项选择(10题)
1.Look!The house
A.is built
B.is being built
C.was built
D.has been built
2.The new library
at the moment,so we can't use it.
A.is being decorated B.was being
C.is decorated
D.has been
decorated
decorated
3.When I called,the problem
A.is being discussed B.was being
C.has been discussed D.was discussed
discussed
4.The exam papers
by the teachers now.
A.are marked
B.are being marked C.were being marked D.have been marked
5.-Why didn't you answer the phone?-Because I
a bath.
A.had
B.was having
C.was being had
D.am having
6.The bridge
across the river when I went there last summer.
A.is built
B.was built
C.was being built
D.has been built
7.Don't make noise.The patient
A.treats
B.is treating
C.is being treated
D.was treated
8.At 8 p.m.last night,the film
on TV.
A.was shown
B.was being shown
C.is shown
D.has been shown
9.The letter that I wrote yesterday
now.
A.is typing
B.is being typed
C.was being typed
D.typed
10.This kind of shoes
well these days.
A.sell
B.are sold
C.are being sold
D.sold
(二)语法填空(10题)
阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。
1.The street
(repair)at the moment,so we have to take another way.
2.Yesterday,when I passed by,the workers
(work)hard.
3.The road
(build)last year,but it
(damage)by the heavy rain
recently.
4.Nowit
(repair)again.
5.I hope it
(finish)soon.
6.While I
(wait)for the bus this morning,a new bus stop
(set)up
by some workers.
7.It
(paint)white and blue
8.I think the city
(improve)every day.
参考答案
语法专练一:现在进行时的
1.B;2.C;3.B;4.B;5.C;6.C;7.C;8.C
被动语态
语法专练二:过去进行时的
1.was being repaired;2.was being cleaned;3.was being
prepared;4.was being copied;5.was being played;6.were
被动语态
being washed;7.was being fixed;8.was being given
综合练习(一)单项选择
1.B;2.A;3.B;4.B;5.B;6.C;7.C;8.B;9.B;10.C
1.is being repaired;2.were working;3.was built;4.was
综合练习(二)语法填空
damaged;5.is being repaired;6.will be finished/is
finished;7.was waiting;8.was being set;9.was being
painted;10.is being improved
教材同步文章句型精讲
重点句型
The Strange Tale of the Milu Deer
The milu deer used to be common in China long ago
结构:sb./sth.+used to+动词原形
中文:麋鹿过去在中国很常见。
用法:表示过去常常做某事,强调过去的状态或习惯,现在己不如此。
注意:否定形式:didn't use to do;易混:used to do与be used to doing区分。
2.The milu deer,one of China's most beloved animals,is also one of its strangest
结构:one of+the+形容词最高级+复数名词
中文:麋鹿,中国最受喜爱的动物之一,也是最奇特的动物之一。
用法:意为“最…之一”,作主语时谓语动词用单数。
3.How else could you describe a creature that has the face of a horse,the hoofs of a cow,the
antlers of a red deer,and the tail of a donkey?
结构:先行词(事物)+关系代词(that/which)+从句
中文:你还能怎样描述一种动物,它有着马的脸、牛的蹄、赤鹿的角和驴的尾巴?
用法:that和which都可以指代物,在从句中作主语或宾语。
4.The history of the species is nearly as strange as its body
结构:as+形容词/副词原级+as+比较对象
中文:这个物种的历史几乎和它的身体一样奇怪。
用法:表示“和…一样…”,中间用形容词/副词原级。
5.The milu deer were often hunted for food or sport in the past.
结构:主语+was/were+过去分词+(by)
中文:麋鹿过去常常被猎杀作为食物或运动。
用法:表示过去发生的被动动作,动作承受者作主语。
6.The milu deer certainly seemed happy to be back in China because their numbers started to
grow steadily.
结构:主句+because+从句(陈述原因)
中文:麋鹿似乎很高兴回到中国,因为它们的数量开始稳步增长。
用法:because引导的原因状语从句直接说明原因,语气最强。
注意:because不能与so同时使用。
考点通关
文章句型
练习一:完成句子(用所给词的适当形式填空)
1.The milu deer
(use)to live in China,but now they
are back.
2.This is one of the
(interesting)stories I have ever
read.
3.I saw a deer
(have)antlers like a red deer.
4.The weather in Beijing is not as
(cool)as that in
England.
5.Many deer
(hunt)for sport in the past
6.He
(use)to play computer games,but now he
doesn't.
7.She is used to
(live)in the countryside
8.The park
(build)in 1985 for the milu deer.
9.The deer liked the park because they
(can)eat wild
plants freely
10.This is the reserve
(which)the deer live safely
练习二:翻译句子(在横线上写出完整句子)
1.麋鹿过去在中国很常见。
2.这是一种有马脸、牛蹄、鹿角和驴尾巴的动物。
3.这个物种的历史几乎和它的身体一样奇怪。
4.麋鹿过去常常被猎杀作为食物或运动。
5.1900年,麋鹿从中国消失了。
6.一些鹿被带到了欧洲。
7.鹿喜欢英国凉爽潮湿的天气。
8.麋鹿的数量开始稳步增长。
9.今天,麋鹿生活在几个保护区内。
10.确保麋鹿永远幸福地生活下去是我们的责任。
参考答案
1.used 2.most interesting ;3.having ;4.cool 5.were hunted
练习一:完成句子
6.used 7.living ;8.was built 9.could 10.where
练习二:翻译句子
1.The milu deer used to be common in China.2.This is a creature
that has the face of a horse,the hoofs of a cow,the antlers of a red
deer,and the tail of a donkey.3.The history of the species is
almost as strange as its body.;4.The milu deer were often hunted
for food or sport in the past.5.In 1900,the milu deer
disappeared from China.6.Some deer were taken to Europe.
7.The deer liked the cool,wet weather in England.;8.The number
of milu deer started to grow steadily.9.Today,the milu deer are
living in several reserves.10.It is up to us to make sure that the
deer live happily ever after.
教材同步单元练习
一、阅读理解
Passage 1
In recent years,the plight of the Afican elephant has captured global attention.These magnificent
creatures,once roaming freely across the vast Afican continent,now face unprecedented threats from
poaching and habitat loss.The situation has become so severe that conservationists wamn we may
witness their extinction within our lifetime if immediate action is not taken.
Poaching remains the most immediate danger to elephant populations.Driven by the illegal ivory trade,
poachers kill approximately 20,000 elephants annually.This staggering figure means that every year,
roughly 8%of Africa's elephant population is lost to this brutal practice.Despite intemational bans
on ivory trade,criminal networks continue to operate,exploiting weak enforcement in certain regions.
The demand for ivory,particularly in some Asian countries where it is carved into omaments and
traditional medicine ingredients,fuels this devastating cycle.
However,the threats facing elephants extend beyond poaching.Habitat loss due to agricultural
expansion and infrastructure development has fragmented elephant populations,limiting their access to
food and water sources.As human populations grow,conflicts between elephants and local
communities become more frequent.Elephants may raid crops,leading to retaliatory killings by farmers
trying to protect their livelihoods.This human-elephant conflict has emerged as a significant challenge
for conservation efforts.
Various conservation strategies have shown promising results.Anti-poaching patrols,equipped with
modem technology such as drones and GPS tracking devices,have successfully reduced poaching rates
in several national parks.Community-based conservation programs have also proved effective by
involving local people in wildlife protection while providing economic benefits through eco-tourism.
For instance,in Kenya's Amboseli National Park,local Maasai communities now serve as wildlife
guardians rather than viewing elephants as threats.
International cooperation plays a vital role in elephant conservation.The Convention on International
Trade in Endangered Species(CITES)has implemented the most comprehensive ban on ivory trade.
Yet,the ban's effectiveness depends heavily on enforcement capabilities and political will.Some
countries have successfully destroyed their ivory stockpiles to send a clear message that ivory has no
value.China,once the largest ivory market,closed its legal domestic ivory trade in 2017,marking a
significant victory for conservation efforts.
The future of African elephants remains uncertain.While there have been notable successes in some
areas,the overall trend remains concemning.Climate change adds another layer of complexity,altering
rainfall patterns and affecting the availability of water and vegetation that elephants depend on.
Conservationists emphasize that saving elephants is not just about protecting a single species.As a
keystone species,elephants play a crucial role in maintaining ecosystem balance.They create pathways
through dense forests,disperse seeds across wide areas,and dig water holes that benefit other animals
during dry seasons.
Ultimately,the survival of African elephants requires sustained commitment from governments,
conservation organizations,and individuals worldwide.Every action counts,whether it is supporting
conservation organizations,refusing to buy ivory products,or raising awareness about this crisis.The
choice is ours:we can either act now to secure their future or become the generation that allowed these
gentle giants to vanish forever.
()1.What is the primary pupose of Paragraph 1?
A.To describe the beauty of African elephants.
B.To emphasize the urgency of protecting Afican elephants.
C.To introduce the history of elephant conservation.
D.To compare Afiican elephants with Asian elephants.
()2.According to the passage,which factor contributes to the illegal ivory trade?
A.The growth of eco-tourism in Afica.
B.The demand for ivory in some Asian countries.
C.The expansion of agricultural land.
D.The use of modemn tracking technology.
()3.The word "retaliatory"in Paragraph 3 is closest in meaning to.
A.defensive
B.revengeful
C.accidental
D.aggressive
()4.What can be inferred about community-based conservation programs?
A.They focus mainly on using advanced technology.
B.They benefit both wildlife and local communities.
C.They have failed to reduce human-elephant conflict.
D.They are only effective in Kenya's national parks.
()5.Why does the author describe elephants as a "keystone species"?
A.Because they are the largest land animals.
B.Because they are the most endangered species.
C.Because they have a significant impact on the ecosystem.
D.Because they are the main attraction for tourists.
Passage 2
The vaquita,a small porpoise native to the Gulf of Califomia,holds the unfortunate distinction of being
the world's most endangered marine mammal.With fewer than ten individuals believed to remain in
the wild,this species stands on the precipice of extinction.Unlike many other endangered species that
face multiple threats,the vaquita's decline can be attributed almost entirely to one human activity:
fishing
Specifically,the vaquita falls victim to gillnets used to catch another endangered species,the totoaba
fish.Totoaba swim bladders are highly valued in traditional Chinese medicine,where they are believed
to have healing properties.Despite international trade restrictions,a lucrative black market has emerged,
with totoaba bladders selling for tens of thousands of dollars each.Fishermen set illegal gillnets to catch
totoaba,and vaquitas,being similar in size and swimming in the same waters,become entangled and
drown.
The Mexican government has implemented various measures to protect the vaquita.In 2015,it banned
gillnet fishing in the vaquita's habitat and compensated fishermen for their lost income.However,
enforcement has proven extremely challenging.The area is remote and difficult to patrol,and illegal
fishing continues largely unchecked.Some conservationists argue that the compensation program failed
because it did not provide altemative livelihoods that were economically viable for fishing communities
International efforts to save the vaquita have intensified in recent years.In 2017,an ambitious rescue
plan called "Vaquita CPR"was launched,aiming to capture remaining vaquitas and place them in a
protected sanctuary.Unfortunately,the operation encountered numerous difficulties.Capturing the
elusive porpoises proved far more difficult than anticipated,and one captured vaquita died shortly after
being caught due to stress.The plan was eventually abandoned,leading many experts to conclude that
protecting vaquitas in their natural habitat is the only viable option.
Technological innovations have been introduced to address the problem.Researchers have developed
acoustic monitoring systems that detect vaquita clicks underwater,allowing scientists to track their
movements and identify areas where they are most likely to be found.Additionally,experimental
"vaquita-safe"fishing gear has been designed,including nets with escape panels that allow vaquitas
to free themselves if trapped.However,the adoption of these technologies has been slow,hampered by
cost concemns and resistance from some fishing communities.
The vaquita's situation highlights broader issues in marine conservation.It demonstrates how the
illegal wildlife trade can drive species to extinction,even when the targeted species is different from the
one being hunted.It also reveals the limitations of conservation efforts that fail to address the root
causes of the problem.As one marine biologist noted,"You cannot save the vaquita without solving
the totoaba problem,and you cannot solve the totoaba problem without addressing the demand from
consumers."
Time is running out for the vaquita.Scientists estimate that if current trends continue,the species will
be functionally extinct within the next few years.Yet,there remains a glimmer of hope.Recent acoustic
monitoring has detected the presence of vaquitas in areas where they were previously thought to have
disappeared,suggesting that the population might be more resilient than feared.Conservationists
emphasize that the vaquita can still be saved,but only if there is immediate and effective action to
eliminate gillnet fishing from its entire habitat.
()1.What is the main cause of the vaquita's decline?
A.Climate change affecting the Gulf of Califomia.
B.Competition for food with other marine species.
C.Accidental capture in fishing nets meant for totoaba.
D.Pollution from agricultural activities along the coast.
()2.The phrase "on the precipice of extinction"in Paragraph 1 suggests that the vaquita is.
A.already extinct
B.about to become extinct
C.recovering from near extinction
D.relatively safe from extinction
()3.Why did the "Vaquita CPR"plan fail?
A.There were not enough vaquitas left to capture.
B.Capturing the porpoises proved more challenging than expected.
C.The Mexican government withdrew its support.
D.International funding was not sufficient.
()4.What can be inferred about the relationship between vaquita conservation and the totoaba trade?
A.Protecting totoaba will automatically save the vaquita.
B.The vaquita cannot be saved unless the totoaba trade is addressed.
C.The totoaba trade has no impact on vaquita populations.
D.The vaquita and totoaba are competitors for the same food sources.
()5.What is the author's attitude toward the future of the vaquita?
A.Completely hopeless and pessimistic.
B.Cautiously hopeful but realistic.
C.Overwhelmingly optimistic and confident.
D.Indifferent and unconcerned.
二、完形填空
The story of the ivory-billed woodpecker is one of the most compelling in modern ornithology.Once
considered extinct for decades,this majestic bird has made(1)appearances that have sparked
hope and controversy among scientists.
The ivory-billed woodpecker was (2)the largest woodpecker in the United States,with a
wingspan of up to 30 inches.It inhabited the old-growth forests of the southeastemn United States,(3)
on beetle larvae found in dead trees.As these forests were logged extensively in the 19th and
early 20th centuries,the bird's habitat(4)rapidly.The last universally accepted sighting
occurred in 1944 in Louisiana,after which the species was declared extinct.
However,reports of sightings have continued (5)
over the years.The most famous incident
occurred in 2004,when a kayaker named Gene Sparling reported seeing an ivory-billed woodpecker in
the Big Woods of Arkansas.This led to an extensive search by omithologists from Comell University,
who (6)
audio recordings that they claimed captured the bird's distinctive calls.The
announcement in 2005 that the ivory-billed woodpecker had been "rediscovered"made international
headlines.
The scientific community was (7)
divided over the evidence.Some experts argued that the
video footage and audio recordings were (8)
pointing to similar species like the pileated
woodpecker as possible explanations.Others insisted that the evidence,while not perfect,was strong
enough to justify continued conservation efforts.The debate (9)
for years,with no clear
resolution.
In 2021,the U.S.Fish and Wildlife Service proposed removing the ivory-billed woodpecker from the
endangered species list,effectively declaring it extinct.This decision was met with(10)
from
both sides.Conservationists who believed the bird still existed criticized the move as premature.Others
argued that continuing to list an extinct species diverted (11)from species that could still be
saved
The controversy (12)
fundamental questions about conservation science.How much evidence
is needed to confirm a species'survival?Should we continue to invest resources in searching for a
species that may no longer exist?These questions have practical (13)
for conservation policy
and funding allocation.
Remarkably,the story may not be over.In recent years,there have been several (14)
of
sightings,including reports from experienced birdwatchers.Technological advances,such as
autonomous recording units and camera traps,offer new hope for detection.Some researchers argue
that the bird's habitat,while greatly reduced,may still contain enough food and shelter to support a
small,(15)
population.
Whether the ivory-billed woodpecker still exists remains one of omnithology's greatest mysteries.Its
story serves as a powerful reminder of what we have lost-and what we might yet save.
1.A.occasional
B.frequent
C.regular
D.constant
2.A.among
B.between
C.within
D.beyond
3.A.feeding
B.surviving
C.depending
D.living
4.A.expanded
B.increased
C.shrunk
D.remained
5.A.to emerge
B.emerging
C.emerged
D.emerge
6.A.obtained
B.produced
C.made
D.recorded
7.A.slightly
B.sharply
C.hardly
D.slowly
8.A.reliable
B.convincing
C.inconclusive
D.accurate
9.A.lasted
B.raged
C.continued
D.remained
10.A.approval
B.criticism
C.praise
D.agreement
11.A.attention
B.resources
C.money
D.efforts
12.A.solves
B.addresses
C.raises
D.answers
13.A.benefits
B.implications
C.outcomes
D.effects
14.A.confirmations
B.denials
C.reports
D.rejections
15.A.decreasing
B.thriving
C.increasing
D.stable
三、阅读短文回答问题
Read the passage and answer the questions in complete sentences.
The reintroduction of wolves to Yellowstone National Park in 1995 stands as one of the most
significant conservation success stories in American history.After being hunted to extinction in the
park in the 1920s,wolves were absent from Yellowstone for nearly 70 years.Their absence had
cascading effects throughout the ecosystem,demonstrating the critical role that apex predators play in
maintaining ecological balance.
Prior to wolf reintroduction,the park's elk population had exploded due to the absence of their
primary predator.This overpopulation led to severe overgrazing,particularly in river valleys where elk
heavily browsed on young willow and aspen trees.The loss of these trees had far-reaching
consequences.Beavers,which depend on willow for food and dam-building material,nearly
disappeared from the park.Songbird populations declined as their nesting habitats diminished.
Riverbanks eroded without the stabilizing root systems of trees,causing streams to widen and degrade
The return of wolves triggered what ecologists call a "trophic cascade"-a process where changes
at the top of the food chain affect multiple levels of the ecosystem.Wolves primarily preyed on elk,
reducing their numbers and,equally importantly,changing their behavior.Elk began avoiding areas
where they were vulnerable to attack,such as open river valleys.This allowed willow and aspen trees
to regenerate in those areas for the first time in decades.
As vegetation recovered,beavers retumed to build dams,creating wetland habitats that supported a
diverse array of species.Songbirds flourished in the newly established forests.The recovering
vegetation along riverbanks helped stabilize stream channels,improving water quality and fish habitat.
Even scavengers like ravens,eagles,and bears benefited from the remains of wolf kills.
The effects of wolf reintroduction were not limited to the natural environment.The presence of wolves
also influenced park management and tourism.Wolf-watching became a popular activity,generating
significant economic benefits for nearby communities.A study estimated that wolf-related tourism
brings in approximately $35 million annually to the Yellowstone region.
However,wolf reintroduction has not been without controversy.Ranchers living near the park
expressed concerns about wolves attacking livestock.While compensation programs have been
established to cover losses,conflicts continue.Some local communities remain opposed to wolf
presence,arguing that wolves pose a threat to their livelihoods and way of life.Wildlife managers have
had to implement careful strategies to balance conservation goals with the needs of local communities.
Despite these challenges,the Yellowstone wolf reintroduction has been widely regarded as a model for
other conservation efforts.It has inspired similar reintroduction programs for other species and in other
regions.The success of this program lies not just in the recovery of a single species,but in the
restoration of an entire ecosystem's health and function.Twenty-five years after their retumn,wolves
have proven themselves to be not just survivors,but ecological engineers capable of reshaping entire
landscapes.
1.What was the main pupose of reintroducing wolves to Yellowstone National Park?
2.How did the absence of wolves affect the elk population and vegetation in the park?
3.What is a "trophic cascade"as described in the passage?
4.Besides ecological benefits,what economic impact did wolf reintroduction have?
5.What challenges has wolf reintroduction presented for local communities?
四、短文填空
阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。
Rhino poaching remains one of the most(1)
conservation issues of our time.Despite decades
of(2)
efforts,these ancient creatures continue to be (3)
for their homs,which are
falsely believed to have medicinal properties in some cultures.
The situation in South Afica,home to the largest population of white rhinos,is particularly (4)
In 2023,the country reported 448 rhinos killed by poachers,a(5)
increase from
previous years.This represents a (6)
reversal of a downward trend that had(7)
conservationists hope just a few years earlier.
Conservation strategies have (8)
in response to this ongoing crisis.Anti-poaching units now
employ sophisticated technology,(9)
thermal imaging drones and GPS tracking devices.
Some thinos have been (10)
with transmitters in their homs that alert rangers when the
animals are in danger.In extreme cases,conservationists have (11)
removed rhino horns
through dehomning operations,making the animals less attractive to poachers.
However,these measures come at a (12)
cost.The annual expenditure for protecting a single
rhino can exceed $100,000.Many wildlife reserves struggle to (13)these operations,
particularly in developing countries where conservation budgets are limited.
International cooperation has (14)
a crucial role in combating the illegal wildlife trade.The
CITES agreement has imposed a global ban on international rhino horn trade since 1977.Yet,black
markets (15)
to flourish,driven by demand from certain Asian countries.Consumer education
campaigns have been launched to (16)
the root cause of the problem-the false belief in rhino
horn's supposed(17)benefits.
The future of rhinos (18)
on our collective ability to solve these interconnected challenges.
Scientists are exploring innovative solutions,(19)
3D-printed synthetic horns that could flood
the market and reduce demand for real homs.While such approaches remain(20),they
reflect the desperation of a conservation community fighting to save species from extinction.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
五、写作
题目要求:
假设你是李华,你所在的学校环保社团(Environmental Protection Club)计划开展一项“保护濒
危野生动物”的宣传活动。请你代表社团写一封倡议信,内容包括:
1.简述当前野生动物面临的威胁(如栖息地破坏、非法捕猎等);
2.说明保护野生动物的重要性:
3.提出具体可行的保护措施(至少两项);
4.呼吁同学们积极参与。
注意:
1.词数100左右:
2.可适当增加细节,以使行文连贯:
3.开头和结尾已为你写好,不计入总词数。
Dear fellow students,
Our school's Environmental Protection Club is launching a campaign to protect endangered wildlife.
Let's take action now and make a difference!
Yours sincerely,
Li Hua
参考答案
Passage A:1.B 2.B3.B 4.B 5.C
阅读理解
Passage B:1.C 2.B 3.B 4.B 5.B
1.A;2.A;3.A;4.C;5.B;6.D;7.B;8.C;9.B;10.B;11.B:12.C;13.B;14.
二、完形填空
C;15.D
三、阅读短文l.The main purpose was to restore ecological balance by bringing back an apex
回答问题
predator that had been hunted to extinction in the park.
2.The absence of wolves led to an explosion in the elk population,which caused
severe overgrazing and prevented the regeneration of willow and aspen trees.
3.A trophic cascade is a process where changes at the top of the food chain affect
multiple levels of the ecosystem,such as wolves reducing elk numbers and changing
their behavior,which allows vegetation to recover.
4.Wolf reintroduction had a significant economic impact,as wolf-related tourism
brings in approximately $35 million annually to the Yellowstone region.
5.Ranchers living near the park expressed concerns about wolves attacking livestock,
leading to conflicts between conservation goals and the needs of local communities.
1.pressing 2.protection 3.hunted 4.alarming 5.significant 6.disturbing 7.given 8.
四、短文填空evolved9.including10.equipped1l.deliberately12.high13.fnd14.played15.
continue 16.address 17.medicinal 18.depends 19.including 20.controversial
五、写作
范文:
Dear fellow students,
Our school's Environmental Protection Club is launching a campaign to protect endangered wildlife.
Currently,many animal species face serious threats such as habitat destruction and illegal hunting.
These problems are pushing countless species toward extinction at an alarming rate.
Protecting wildlife is crucial because every species plays a unique role in maintaining ecological
balance.The loss of any species can disrupt the entire ecosystem,ultimately affecting human life as
well.
To address this crisis,we propose two practical actions.First,we can reduce our consumption of
products that harm wildlife,such as ivory and exotic leather goods.Second,we can volunteer for local
conservation organizations or participate in wildlife protection education programs.
Let's take action now and make a difference!
Yours sincerely,
Li Hua