练案21 选择性必修第二册 Unit4 humour-【衡中学案】2027年高考英语一轮总复习练案(北师大版)
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练案[21]
选择性必修第二册
UNIT 4 HUMOUR
I.阅读理解
1.Why do stressed plants make noise according to the text?
A.To ease the pain.
(2026·广东四校联考)
B.To stress their hobby.
An Israeli study has revealed plants make noise a bit
C.To communicate with other organisms
when they are stressed from a lack of water or having their
D.To inform other creatures of their emotions.
stems()cut.The sounds are about the same volume as2.What is the closest meaning of the underlined word
normal human conversation.However,the pitch (
“dehydrated”in Paragraph4?
A.Lacked light.
is too high for people to hear.
B.Lacked water.
The researchers believe insects,other mammals and
maybe even other plants can probably hear the sound of
C.Filled with too much light.
D.Filled with too much water.
the stressed plants,"Even in a quiet field,there are
3.What could the study be applied to if scientists succeed
actually sounds we don't hear,and those sounds carry
in it?
information,"said Lilach Hadany,a professor from Tel
A.Planting unstressed trees.
Aviv University."Some animals can hear these sounds,
B.Analyzing different sounds.
so there is a possibility that a lot of interaction is
C.Ensuring the growing conditions of plants.
occurring..”
D.Taking appropriate measures to water plants.
The researchers used microphones to record healthy4.What does Professor Hadany think of the research?
and stressed tomato plants,and trained a machine
A.It'll be of great value.
learning algorithm (to distinguish between
B.It'll appeal to more farmers.
unstressed plants,thirsty plants and cut plants.They
C.It'll need further study.
found that stressed plants give out more sounds than
D.It'll be environmentally-friendly.
unstressed ones.The sounds from stressed plants
及
resembled pops or clicks.
(2026·潍坊市开学调测)
The study,published in the journal Cell,found
The potato:Mash it,bake it,fry it...No matter how
thirsty plants began making noise before they visibly you deal with it,the potato is the very example of all that
dehydrated,and the frequency of sounds peaked after five is ordinary.And yet it has long harbored a mystery.
days with no water,before decreasing again as the plants!
Scientists found that certain genes suggested that potatoes
dried up completely.Hadany said happy plants were
were more closely related to tomatoes,while other genes
found to make far fewer sounds.When tomato plants were
gave the impression that potatoes and Etuberosum(
had the closer relationship.Which one was it?
not stressed at all,they were very quiet.
A new study in Cell offered the answer.Researchers
The study also found sound recordings of plants
led by botanist Sandy Knapp discovered that the potato
could be useful in agriculture to ensure crops get enough
genes originated in the Americas where an ancient
water and distribute water where it was needed most.
hybridizing event between the ancestors of tomatoes and
However,it's unclear why plants produce theseEtuberosum occurred around 9 million years ago.This is
sounds and who might be listening.Professor Hadany when the Andes Mountains were alarming.This rare
said,"We are currently investigating the responses of hybridization created a new plant with a unique ability
other organisms,both animals and plants,to these that neither of its parent plants had:forming underground
sounds,and we're also exploring our ability to identify tubers(the part we eat)."They're a way for a plant to
and interpret the sounds in completely natural store starch(淀粉),”Knapp says,“and,in a way,
environments.
survive seasons which are not good for growing."
509—
Understanding the potato's origins,specifically the 5.What remained uncertain about potatoes at first?
key genes inherited (from each parent group that
A.Their genetic origin.
control tuber formation,opens new possibilities."We can
B.Their plain look.
use the tomato or Etuberosum to perhaps do some genetic
C.Their various relatives.
engineering to improve the potato,"Knapp says.One
D.Their serving methods.
such improvement would enable farmers to grow potatoes6.What can underground tubers function as?
resistant to pests,a changing climate,and other
A.The plant holder.
environmental challenges.Simply put,"The tomato can
B.A new parent plant.
be the future of the potato,"says Zhang Zhiyang,a plant
C.A nutrition provider.
genetics Ph.D.student and a lead researcher on the
D.The season indicator.
study.
7.What can be inferred from Paragraph 3?
The origin of potatoes offers much food for thought.
A.Potatoes would be in greater need.
You had two things and something completely different
B.The farming approach goes greener.
emerged.Zhang says,"Through hybridization,you can
C.The genetic engineering is improving.
generate many new combinations in a short time.And you
D.Potatoes would become more adaptable.
can generate more species to adapt to changeable
environments.""Hybridization is a real force in evolution
.What doe Knapphfdit
that allows for the release of variation,"Knapp explains.
A.Its success relies on luck.
Of course,not all hybridizing events have produced
B.Its operation is easy to learn.
results as wildly successful as the potato.But we're quite
C.It helps create diverse species.
lucky in this case that this one worked.
D.It is worth applying worldwide.
Ⅱ.完形填空
(2025·皖南八校联考)1.A.short
B.clean
"In my childhood,the village was a different world altogether.
C.narrow
D.rough
The houses were old,and roads were 1.But now,our village2.A.in store
B.at least
boasts modern,well-constructed homes,wide well-lit roads,and
C.on board
D.as regards
practically every household owns 2 one car."said Li Jing,3.A.demand
B.yield
director assistant to the village secretary of Maotianping Village
C.salary
D.education
Committee in Enshi,Hubei Province.
4.A.job
B.urge
Li is a native of this village and was one of the first from her
C.license
D.inspiration
community to pursue higher 3.She studied hotel management
5.A.Therefore
B.However
and tourism at Wuhan University of Science and Technology.After
C.Moreover
D.Likewise
graduation,she gained a(n)4 in the hotel industry.5,she
6.A.bring about
B.concentrate on
made the life-altering decision last year to return to her village.
C.fall behind
"I want to be an integral part of my hometown's development
D.adapt to
7.A.till
and 6 real changes that improve the livelihoods of our villagers
B.so
7 realizing my own personal value,"Li said.
C.yet
D.while
Enshi,renowned for its breathtaking scenery,8 relies on
8.A.boldly
B.attractively
agriculture and most of its farmers grow potatoes.Li projects to
C.heavily
D.excellently
showcase the agricultural riches 9 by its residents.
9.A.applauded
B.distributed
"Here,we are 10 with a humid climate and over 70
C.charged
D.cultivated
percent forest coverage.This makes it an ideal setting for cultivating
10.A.satisfied
B.blessed
potatoes,”Li explained.“You can find selenium-rich(富含a硒的)
C.angry
D.bored
—510
potatoes here,as the soil in our village boasts a(n)1111.A.high
B.little
selenium content,a trace (12 known for its health
C.novel
D.odd
benefits.”
12.A.lifestyle
B.concept
In addition to potato farming,Li's team has created positions
C.factor
D.element
like potato managers,similar to 13 and sales specialists.
13.A.planting
B.marketing
C.baking
There's even a role of a potato assessor,responsible for 14 the
D.gardening
14.A.loading
B.sowing
best-looking potatoes for sale.In the future,Li hopes to continue
C.selecting
D.imagining
helping her fellow villagers raise their potato production and
15.A.celebrity
B.income
increase their_l5_·
C.acknowledgement
D.capacity
Ⅲ.七选五
(2025·临沂一模)
Mark Covington,founder of the Georgia Street Community Collective in Detroit,stands in a corner of his urban
farm,breathing the fresh air in the early morning.I Early in the day,the green crops giving life to tomatoes,
cabbages,eggplants,and more are bathed in gold,as if being watered by the sun.The sounds of dogs,pigs,roosters,
and a group of stirring bees drown out the sounds of the city.
In 2007,Covington lost his job and returned to his childhood street.2 "It was dirty,"he said."There were
always vacant lots,but they had always been maintained for children to play on.He knew that if he just cleaned
them up,people would pile on them again.3
Covington started with a small community garden.4 One mother sent three children to help him build a
larger garden where the kids could grow food,stay busy during the summer and add structure to their lives.Little by
little the seeds took root,as the hands on the garden that would evolve into a farm multiplied.
5 On one corner:a movie screen and a public garden with vegetable and flower beds.On another:a farm
and a community center in a building.Nearby are garlic beds and a greenhouse."It's somewhat spiritual for me,"
Covington says..“It's like a sanctuary(圣殿).People come here and don't want to leave.”
A.But if he planted stuff,they might not.
B.It's a typical morning scene at the collective.
C.He saw garbage piled high in vacant,abandoned lots.
D.Covington made the garden a little bigger to plant more.
E.And almost immediately neighbors began asking to participate.
F.He planted a garden to help feed residents and enrich their lives.
G.What began as an effort to remove trash has turned into a site of community.
2
3.
Ⅳ.读后续写
I had no choice but to have my car towed (to a
阅读下面材料,根据其内容和所给段落开头语续:garage nearby..Standing there,the intense heat beating down
写两段,使之构成一篇完整的短文。
on me,I felt a lump forming in my throat.Just then,an
(2026·安徽六校教育研究会入学测试)elderly woman with a warm smile approached me.“Car
On a sweltering(炎热的)August day in Savannah,trouble,too?”she asked,her voice filled with concern..I
Georgia,I was completely unaware that a life-changing nodded,frustration evident in my expression."I have no
moment was about to occur.After I loaded fresh peaches idea what's wrong.It was working fine earlier."
into my car and was about to leave the lively farmers'
What began as a simple exchange soon turned into a
market,my car decided to play a cruel joke on me-it sincere conversation.She listened attentively as I
refused to start.
complained about my car,and then we found ourselves
—511—
chatting comfortably.We shared stories about my travels,
I felt tears of my own welling up in my eyes.:
her cozy hometown,her husband's recent fishing hobby,
and my parents'plans for a beach vacation.
"Your car is all set,ma'am,"the mechanic called
out to the woman.She thanked him with a gracious smile
and turned to me.As she was about to walk away,she
paused,as if in deep thought."I need to tell you
something,"she said,her tone serious."My daughter
passed away a couple of years ago.Even now,small
A few hours later,I pulled into the driveway at my
things can set me off.But every so often,I meet someone
parents'house.
who reminds me of her,and today,you did.I believe that
maybe it's a sign that she's still with me in some way.
Talking to you has been a real pleasure."She smiled,her
eyes glistening."When you get home,give your parents a
big hug.They're lucky to have you."
注意:1.续写词数应为150个左右;
2.请按如下格式作答。
练案[22]
选择性必修第二册
UNIT 5 EDUCATION
I.阅读理解
images)and deep learning (an AI approach for training a
computer to learn and work like the human brain)to help
(2026·浙江1月卷)researchers process images much more quickly..
Carbon removal is crucial for fighting climate
The application of SLEAP to plants has already
change.Scientists at Salk Institute are making use of the
enabled researchers to establish the most extensive catalog
natural capacity of plants to absorb carbon dioxide by()of plant root phenotypes to date.What's more,
enhancing their root systems..This optimization(优化)
tracking these physical root system characteristics helps
aims to increase the amount of carbon stored and extend
scientists find genes(基因)associated with those
the duration of its storage.
characteristics,as well as whether multiple root
To design these climate-saving plants,the scientists
characteristics are determined by the same genes or
are using a research tool called SLEAP-an AI software
independently.This allows the Salk team to determine
that tracks multiple features of root growth.Created by
what genes are most beneficial to their plant designs.
Salk Fellow Talmo Pereira,SLEAP was initially designed
"Our cooperation is truly proof of what makes Salk
to track animal movement in the lab.Now,Pereira has
science so special and impactful,"says Pereira."We're
teamed up with plant scientist Professor Wolfgang Busch
to apply SLEAP to plants.
not just borrowing'from different disciplines-we're
In a study published in Plant Phenomics,Busch and
really putting them on equal footing in order to create
Pereira establish a new procedure for using SLEAP to
something greater than the sum of its parts."
analyze plant root phenotypes-how deep and wide they
1.What do the scientists at Salk Institute hope to
grow,how massive their root systems become,and other
achieve?
physical qualities.Prior to SLEAP,tracking the physical
A.Keeping more carbon in plants.
characteristics of both plants and animals required a lot of
B.Optimizing the use of energy.
labor that slowed the scientific process.SLEAP uses
C.Enhancing biological diversity.
computer vision (the ability for computers to understand
D.Reducing carbon absorption.
512comparison to others that we meet.”可知,社会边界可以帮助我们:3.D推理判断题。根据第五段“The study also found sound
分辨他人与自己的异同,进而将他人归类。B项(社交界限让人:
recordings of plants could be useful in agriculture to ensure crops get
们快速评估其他人)符合语境。故选B。
enough water and distribute water where it was needed most.
3.A根据上文“n some countries,it is rude to look people directly
究还发现,植物的录音对农业是有帮助的,可以确保农作物获
in the eyes while speaking with them.”及下文“fwe're able to
得足够的水并将水分配到最需要的地方。)”可知,该项研究可
understand that others'social boundaries may be different in some
运用于浇灌植物。故选D。
ways..”可知,设空处应谈论在社交场合直视他人眼睛的文化4.C
推理判断题。根据最后一段中的“We are currently
差异,上文已提到直视他人是不礼貌的,所以此处应点明相反
investigating the responses of other organisms...to identify and
的情况。A项(然而,在其他国家,不这样做是粗鲁的)承上启!
interpret the sounds in completely natural environments.”可知,这
下,符合语境。故选A。
个团队目前正在研究其他生物(包括动物和植物)对这些声音
4.F根据上文“In some societies,however,it is quite common to
的反应,也在探索在完全自然的环境中识别和解释这些声音的
stand very close to another individual while having a conversation.
能力。由此可推知该项研究还需要进一步的研究。故选C。
可知,社交距离是一种主观判断。F项(事实上,当人们在互动
B
时,有一个不言而喻的预期距离)符合语境。故选F。
语篇导读:本文是一篇说明文。科学家们经过研究,解开了
5.C根据上文“Social boundaries can influence various aspects of a!马铃薯的进化谜团,为通过基因工程进行品种改良(如增强抗虫
person's behavior...”及下文“Openly sharing emotions is either性、气候适应性)提供了新路径。
strongly discouraged or welcomed in different cultures.”可知,设空;5.A细节理解题。根据第一段中的“Scientists found that certain
处谈论社交边界影响人们是否分享自己的感受。C项(它们甚
genes suggested that..Which one was it?”可知,某些基因表明
至可以指导人们在多大程度上分享自己的感受)承接下文,符
马铃薯与番茄的亲缘关系更近,而另一些基因却显示马铃薯与
合语境。故选C。
类马铃薯的关系更为密切,科学家们无法确定马铃薯与哪类植
I.
语篇导读:本文是一篇说明文。主要介绍了在不同的文
物的亲缘关系更近。故选A。
化背景下目光交流的意义不同。
6.C细节理解题。根据第二段中的“a way for a plant to store
I.extended考查形容词。分析句子成分可知,设空处作名词词组
starch(淀粉)”以及“survive seasons which are not good for
eye contact的定语,应用形容词。extended意为“较长时间的,延
growing”可知,马铃薯的地下块茎是植物储存淀粉的方式,某种
长了的”。故填extended。
程度上也是植物挺过不宜生长季节的方式,因此地下块茎的功
2.as考查介词。此处考查词组“think of..as..”,意思是“认
能是“营养提供者”。故选C。
为…是…”。故填as。
;7.D推理判断题。根据第三段中的“One such improvement would
3.is considered考查动词的时态和语态及主谓一致。分析句子
enable farmers..and other environmental challenges.”可知,通过
成分可知,it为形式主语,真正的主语是to have brief eye
基因工程可使马铃薯抵抗虫害、气候变化等问题,即通过改良
contact,此处形式主语it和consider之间构成被动关系,文章整
品种,马铃薯能更加适应环境。故选D。
体时间基点为现在,因此应用一般现在时的被动语态。故填is8.C细节理解题。根据第四段中的“bridization is a real force.
considered。
the release of variation”可知,Knapp认为杂交是进化中的一股真正
4.social考查形容词。分析句子结构可知,设空处在句中作定
推动力量,它使变异成为可能,也就是有助于产生新物种。“the
语,修饰名词status,应用形容词。故填social。
release of variation'与“diverse species'”是同义替换。故选Ce
5.looking考查非谓语动词。avoid doing sth.为固定搭配,意为:Ⅱ.
语篇导读:本文是一篇记叙文。主要讲述了湖北省恩施
“避免做某事”。故填looking
州茅田坪村的李静工作后决定回到村里,利用当地得天独厚的地
6.superiors考查名词复数。分析句意和空前的are可知,此处应:理和气候条件,带领全村人民一起发展土豆种植来提高收入的
用名词复数形式。故填superiors.。
;故事。
7.to know考查非谓语动词。“tis+ad.+for sb.+to do sth.”1.C根据下文“But now...wide well--lit roads”可知,此处是指村
为固定句型,意为“做某事对某人来说是…的”,t是形式主
里原来的道路很窄。narrow意为“狭窄的”,与wide相对应,符
语,不定式作真正的主语。故填to know。
合语境。short短的:clean干净的;ough粗糙的。故选C。
8.or考查连词。either..or..为固定短语,意为“要么…要2.B根据上文“But now,our village boasts modern,well
么…”。故填or。
constructed homes,wide well-lit roads'”可知,村里已经今非昔比,
9.flexibly考查副词。设空处修饰动词短语make use of,应用副!
环境和人们的生活条件都变好了,由此可推知,此处是指村里
词。故填flexibly
每家都至少有一辆小轿车。at least意为“至少”,符合语境。in
10.who/hat考查定语从句。分析句子结构可知,设空处引导定语
store即将发生;on board在船上;as regards关于。故选B。
从句,先行词为people,指人,关系词在从句中作主语。故填who/3.D根据下文“She studied hotel management and tourism at Wuhan
that
University of Science and Technology..”可知,此处是指李静离开
练案[21]
村子去上大学,即接受高等教育。education意为“教育”,符合语
I.
境。demand需求;yield产量;salary工资。故选D。
语篇导读:本文是一篇说明文。以色列的一项研究发现,植4.A根据上文“After graduation”和下文“in the hotel industry”及
物在压力下会发出声音,这项研究将会对农业产生积极作用。
常识可知,此处是指李静在大学毕业后在酒店行业获得一份工
L.C细节理解题。根据第二段第二句和第三句“‘Even in a quiet
作。job意为“工作”,符合语境。urge冲动;license许可证;
field,there are actually sounds we don't hear,and those sounds
inspiration启发灵感的人(或事物)。故选A。
carry information,’said Lilach Hadany,a professor from Tel Aviv:5.B根据上文“After graduation,she gained a(n)_4_in the
University.'Some animals can hear these sounds,so there is a:
hotel industry.”及下文“she made the life-altering decision last
possibility that a lot of interaction is occurring,'”可知,(植物在紧
year to return to her village”可知,上下文之间为转折关系。
张时发出的)声音包含着某种信息,而某些动物可以听到这种
however意为“然而”,符合语境。therefore因此;moreover而且;
声音,这意味着它们想与其他生物进行交流。故选C。
likewise同样地。故选B。
2.B词义猜测题。由画线词前的“thirsty plants”以及其后的6.A根据上文“I want to be an integral part of my hometown's
“with no water'”可知,此处指的是植物缺水的状况。故选B。:development'”及语境可推知,此处是指李静想要参与家乡的建
633-
设,带来实际的变化以改善乡亲们的生活。bring about意为“引:
build a larger garden..”可知,科温顿的项目迅速引起了周围人
起;导致”,符合语境。concentrate on集中注意力于;fall behind
的兴趣和参与意愿。E项(几乎立刻就有邻居开始请求参与。)
落在…后面;adapt to适应。故选A。
衔接上下文,符合语境。故选E。
7.D根据上文“I want to be an integral part of my hometown's5.G根据下文“On one corner..On another..”可知,本段应该
development'”和空后的“realizing my own personal value”及常识!
描述的是含有不同区域的一个地点,由本段最后一句可知,这
可知,此处是指李静想在参与家乡建设的过程中实现自己的人
个地点已经升华成一个被社区人们共享的场所。G项(从清理
生价值。while意为“在…的过程中”,符合语境。故选D。
垃圾开始的项目已经变成了一个社区场所。)符合语境,且能概
8.C根据下文“relies on agriculture and most of its farmers grow
1
括本段主旨。故选G。
potatoes”可知,此处是指恩施的经济收人主要是依靠农业和农V.【写作提示】
产品。heavily意为“在很大程度上”,符合语境。boldly大胆自Step1故事梗概
信地;attractively吸引人地;excellent山y优秀地。故选C
情节线开端:八月的一天,天气炎热,作者在农贸市场购物,准
9.D根据下文“This makes it an ideal setting for cultivating备离开时发现汽车无法启动,无奈之下只能将车拖到附近修理厂
potatoes”可知,此处指李静打算展示乡亲们种植的农产品。→发展:倍感沮丧时,一位面带温暖微笑的老妇人主动上前搭话,
cultivate意为“种植;耕作”,符合语境。applaud鼓掌;称赞;原本简单的抱怨逐渐演变为真诚的交流一→高潮:老妇人离开时告
distribute分发;charge指控。故选D。
:诉作者,这次对话让她感受到几年前已经去世的女儿仍在以某种
l0.B根据下文“with a humid climate and over70 percent forest方式陪在身边,并叮嘱作者回家后给父母一个拥抱一→结局:?
coverage'”和“This makes it an ideal setting for cultivating情感线沮丧→抱怨-→温暖→感动→?
potatoes'”可知,此处是指李静的家乡有得天独厚的地理和气候;Step2续写思路
优势。be blessed with意为“赋有…;享有…”,符合语境。!(I)Para.I:I felt tears of my own welling up in my eyes.我感到我的
be satisfied with对.…满意;be angry with对.…生气;be bored眼眶有眼泪在打转。
with对…厌烦。故选B。
Q1:作者为什么想要流泪?Q2:看到老妇人离开,作者有什么感受?
1l.A根据上文“You can find selenium--ich(富含硒的)potatoes:续写第一段应着重描写老妇人的话对作者的触动以及作者的感
hre”可知,此处是指李静家乡的土壤含有很高的硒元素。high激之情;根据续写第二段开头语可知,本段还要写到作者和老妇
意为“(含量)高的”,符合语境。little小的:novel新奇的;odd!人分手后决定去看望父母,并给他们一个拥抱。
反常的。故选A。
(2)Para.2:A few hours later,I pulled into the driveway at my
l2.D根据空前的“ace(微量)”和常识可知,硒是一种微量元parents'house..几小时后,我把车停在了父母家的车道上。
素。clement意为“元素”,符合语境。lifestyle生活方式;Q1:见到父母,作者做了什么?Q2:父母有什么反应?
concept概,念;factor因素。故选D。
本段可通过场景描写(父母的日常活动)、动作描写(作者主动拥
l3.B根据下文“sales specialists”可知,此处是指土豆经理职位抱)、神态与语言描写(父母的反应),与短文最后老妇人的叮嘱呼
类似于市场营销和销售专家。marketing意为“市场营销”,符:应,同时结尾可加人作者的感悟,呼应短文开头的改变人生的时
合语境。planting种植;baking烘焙;gardening园艺。故选B。刻,升华主题
l4.C根据上文“There's even a role of a potato assessor'”和下文参考范文:
“best-looking potatoes for sale”可知,此处是指土豆鉴定师挑选
I felt tears of my own welling up in my eyes.Her words struck a
卖相好的土豆进行出售。select意为“挑选”,符合语境。load chord(引起共鸣)deep within me,making the sweltering heat fade
装人;sow播种;imagine想象。故选C。
into insignificance(显得微不足道).I reached out and gently
l5.B根据上文“In the future,Li hopes to continue helping her squeezed her hand,unable to find the right words.“Thank you,”I
fellow villagers raise their potato production and increase their"managed to say,my voice trembling."Meeting you today is a gift
常识可知,提升土豆产量可以增加乡亲们的经济收入。income i too.”She patted my hand softly before turning to leave,her steps
意为“收人”,符合语境。celebrity名誉;acknowledgement承认;lighter than before.Watching her go,.I felt warmth spreading through
capacity容量。故选B。
my chest,as if her daughter's spirit had wrapped around us both.
Ⅲ.语篇导读:本文是一篇记叙文。主要讲述了马克·科温
A few hours later,I pulled into the driveway at my parents'
顿变废为宝、建农场助邻的故事,他所在的社区由此焕发新生。
house.They were sitting on the porch,sipping iced tea,and looked up
l.B根据上文“.,breathing the fresh air in the early morning.”及in surprise as I jumped out of the car.Without a word,I approached
"Early in the day,the green crops...bathed in gold,as if them and pulled them into a tight hug.My mom laughed,patting my
being watered by the sun..”可知,本段主要描述的是马克·科温顿back,while my dad's eyes widened.“What's this for?”he asked..I
在他的城市农场的一个角落,呼吸着清晨的新鲜空气。接下来的描pulled back,smiling through tears.“Just because I realized how lucky
述共同构成了清晨在这个集体农场中的典型景象。B项(这是集体I am to have you,”I said,thinking of the kind lady.At that moment,
农场的一个典型清晨场景。)衔接上下文,符合语境。且B项中的!I knew that some encounters,however brief,are meant to remind us of
“moming scene'”与空前的“in the early moming”相呼应。故选B。!life's most precious gifts..
2.C根据空后的“‘It was dirty,’he said..‘There were always
练案[22]
vacant lots,but they had always been maintained for children to:I
A
play on..’”可知,在2007年,科温顿失去了工作并回到了他童年
语篇导读:本文是一篇说明文。文章主要介绍了Salk Institute
的街道,可是街道很脏,空地上堆满了垃圾。C项(他看到了空;的科学家利用人工智能工具SLEAP分析植物根系特征,通过优化
置、被遗弃的地上堆积如山的垃圾。)衔接上下文,符合语境。!植物根系设计来增强其固碳能力以应对气候变化,并强调了跨学
故选C。
:科合作对科学创新的推动作用。
3.A根据下段首句可知,科温顿开始种植社区花园,说明此空应;1.A细节理解题。根据第一段中的“Scientists at Salk Institute are
是提出了一个不同的解决方案,且与种植东西有关。A项[但
making use of the natural capacity of plants...extend the duration
是如果他种植了东西,人们可能就不会(再往上面扔垃圾)了。]
of its storage.”可知,Salk Institute的科学家通过优化植物根系来
既与前一句形成对比,又引起了下文内容,符合语境。故选A。
提升其吸收二氧化碳的能力,目的是增加植物的碳储存量并延
4.E根据设空处前后两句“Covington started with a small:
长储存时间。由此可知,这些科学家希望实现的是让植物储存
community garden.”和“One mother sent three children to help him;
更多的碳。故选A。
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