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Unit 3 Exploring the Unknown测试-2025-2026学年沪外版高中英语选择性必修第三答案及详细解析
第一部分单词练习（共两节，满分30分）
第一节单句语法填空（共10小题；每小题1.5分，满分15分）
1.have explored 2.that 3.where 4.joining 5.will have uncovered
6.why 7.(should)keep 8.Exploring 9.when 10.invested
第二节单词拼写（共10小题；每小题1.5分，满分15分）
11.curiosity 12.expedition 13.probe 14.breakthrough 15.courage
16.unknown 17.uncover 18.enthusiasm 19.discovery 20.mysterious
第二部分阅读（共两节，满分50分）
第一节阅读理解（共15小题；每小题2.5分，满分37.5分）
21.B 22.C 23.C 24.B 25.A 26.C 27.C 28.B 29.C 30.B
31.C 32.A 33.B 34.D 35.C
第二节七选五（共5小题；每小题2.5分，满分12.5分）
36.C 37.A 38.D 39.F 40.G
第三部分语言运用（共两节，满分30分）
第一节完形填空（共15小题；每小题1分，满分15分）
41.A 42.B 43.A 44.C 45.A 46.B 47.C 48.A 49.B 50.D
51.A 52.A 53.B 54.B 55.C
第二节语篇语法填空（共10小题；每小题1.5分，满分15分）
Exploring 57.keep 58.are used 59.The 60.in
61.damaging 62.with 63.an 64.to learn 65.which
第四部分写作（共两节，满分40分）
第一节应用文写作（满分15分）
参考范文
Dear Sir/Madam,
I’m Li Hua,a student from Class 2,Grade 11.I’m writing to apply for the"Explore the Unknown·Embrace Science"speech contest.I’m eager to take part in it and share my ideas about exploring the unknown.
In my opinion,exploring the unknown is the core pursuit of humans,which drives scientific progress and broadens our horizons.It needs curiosity,courage and perseverance.I have read many books about space and ocean exploration,and I once joined a school science club to do small exploration experiments.I’ve also prepared a speech draft with vivid exploration stories to make it more attractive.
I hope I can get the chance to participate.I will make full preparations and try my best.
Yours sincerely,
Li Hua
第二节读后续写（满分25分）
参考范文
Paragraph 1:
We rushed towards the green spot with the last of our strength.As we got closer,we found it was an unknown oasis hidden in the desert.There was a small lake with clear water,and green grass and small trees grew around it.We were so excited that we ran to the lake immediately.We drank the clean water and rested by the lake.The fresh air and green scenery made us forget all the tiredness and despair.
Paragraph 2:
After resting and replenishing water,we started to explore the unknown oasis.We found some rare desert plants and even footprints of small animals around the lake.What surprised us most was a stone tablet with ancient carvings by the lake,which might be related to the ancient civilization we were looking for.We took photos and recorded the details carefully.This discovery made us realize that exploring the unknown always brings unexpected surprises as long as we don’t give up.
Unit 3 Exploring the Unknown单元检测卷详细解析
第一部分单词练习
第一节单句语法填空
1.have explored：By 2026+for decades表到2026年已完成的持续动作，用现在完成时，主语scientists为复数。
2.that：考查强调句It is+被强调部分+that+其余部分，强调主语the curiosity for the unknown，用that。
3.where：定语从句关系副词，先行词the space station表地点，从句中作地点状语，用where。
4.joining：固定搭配dream of doing sth.，意为“梦想做某事”，of为介词，后接动名词。
5.will have uncovered：By+具体将来时间（March 16,2026），主句用将来完成时，表将来某时已完成的动作。
6.why：定语从句关系副词，先行词the reason，从句中作原因状语，用why。
7.(should)keep：It is suggested that...从句用虚拟语气，谓语用(should)+动词原形，should可省略。
8.Exploring：动名词作主语，表抽象动作，句首首字母大写。
9.when：定语从句关系副词，先行词the day in 2025表时间，从句中作时间状语，用when。
10.invested：if引导的虚拟条件句，表与现在事实相反，从句谓语用过去式。
第二节单词拼写
11.curiosity：名词，意为“好奇心”，inborn curiosity表示“天生的好奇心”。
12.expedition：名词，意为“探险；考察”，scientific expedition表示“科学探险”。
13.probe：动词，意为“探索；探究”，make it possible to do sth.后接动词原形。
14.breakthrough：名词，意为“突破”，a major breakthrough表示“重大突破”。
15.courage：名词，意为“勇气”，have the courage to do sth.表示“有勇气做某事”。
16.unknown：形容词，意为“未知的”，修饰名词region。
17.uncover：动词，意为“揭示；发现”，work hard to do sth.后接动词原形。
18.enthusiasm：名词，意为“热情”，enthusiasm for表示“对……的热情”。
19.discovery：名词，意为“发现”，the discovery of表示“……的发现”。
20.mysterious：形容词，意为“神秘的”，修饰名词forces。
第二部分阅读
第一节阅读理解
语篇解读A（应用文·招募启事）
本文是2026年国家北极研究中心发布的青少年北极探索营招募信息，介绍了营期活动、报名要求，旨在为16-18岁青少年提供接触北极未知区域、积累科学探索经验的机会，贴合“探索未知”的单元主题。
21.B：细节理解题
定位原文：This camp is a precious chance to get close to the unknown Arctic world,gain practical scientific experience（这个营地是接触北极未知世界、积累实用科学经验的宝贵机会）
解析：探索营的核心目的是帮助青少年探索北极未知区域并获得科学经验；A（培养专业北极科学家）、C（为科研收集冰样本）是活动内容而非目的，D（推广北极旅游）未提及。
22.C：细节理解题
定位原文：third,submit a 300-word essay titled"My Understanding of Exploring the Unknown"before June 10（第三，6月10日前提交一篇题为《我对探索未知的理解》的300词短文）
解析：C是报名要求之一；A（有丰富北极探索经验）、B（16岁以下）、D（会说三门外语）均与原文不符。
23.C：推理判断题
定位原文：Participants will work with professional scientists to collect ice samples...They will also attend lectures given by experts（参与者将和专业科学家一起收集冰样本……也将参加专家开设的讲座）
解析：可推断探索营结合了实践活动和学术讲座；A（冬季举办）、B（参与者在北极独立生活）、D（仅尖子生可报名）均无原文依据。
语篇解读B（记叙文）
本文讲述作者2026年作为初级研究员加入深海探索队，探索太平洋1万米未知海床并发现新海洋生物的经历，作者从中感悟到探索未知需要勇气和耐心，未知的海洋中藏着无数惊喜。
24.B：细节理解题
定位原文：Before the trip,I was both excited and nervous—no one knew what we would encounter in that dark and mysterious world（出发前，我既兴奋又紧张——没人知道我们会在那个黑暗神秘的世界遇到什么）
解析：作者紧张的原因是未知海床的不确定性；A（潜水器不够先进）、C（深海压力太低）与原文相反，D（无科研经验）原文未提及。
25.A：词义猜测题
定位原文：As we descended,the seawater gradually turned from blue to black,and the pressure increased dramatically（当我们______时，海水从蓝色逐渐变成黑色，压力急剧增加）
解析：结合深海探索背景，海水变深、压力增大说明是“下潜”，descended对应went down；B（上升）、C（快速移动）、D（突然停止）均不符。
26.C：推理判断题
定位原文：It also taught me that exploring the unknown requires courage to face the unknown and patience to observe carefully（这也让我明白，探索未知需要面对未知的勇气和仔细观察的耐心）
解析：这是作者的核心感悟；A（深海不适合海洋生物）与原文矛盾，B（探索未知总是有危险）过于绝对，D（深海容易发现新物种）原文未提及。
27.C：情感态度题
定位原文：The discovery made me realize that the ocean is full of unknown wonders,and every exploration brings unexpected surprises（这次发现让我意识到，海洋充满了未知的奇迹，每一次探索都能带来意想不到的惊喜）
解析：作者对探索未知充满肯定，态度是积极的；A（怀疑的）、B（冷漠的）、D（批评的）均不符。
语篇解读C（说明文）
本文介绍2026年人工智能成为人类探索未知的强大工具，在太空、海洋、考古三大领域发挥重要作用，同时指出人工智能只是工具，探索未知仍需要人类的好奇心、勇气和科学精神，人机结合才是未来探索的趋势。
28.B：主旨大意题
解析：文章核心围绕“人工智能如何在不同领域帮助人类探索未知”展开，分别介绍了AI在太空、海洋、考古的应用；A（2026年AI技术的发展）、C（AI技术的优缺点）、D（人类探索未知的原因）均为局部内容，非主旨。
29.C：细节理解题
定位原文：AI has become a powerful tool for exploring the unknown,revolutionizing the way humans discover new things in fields like space,ocean,and archaeology（人工智能成为探索未知的强大工具，彻底改变了人类在太空、海洋和考古等领域的探索方式）
解析：原文提及太空、海洋、考古，未提及医学（Medicine）。
30.B：细节理解题
定位原文：In space exploration,AI is used to process data from telescopes and satellites to identify unknown celestial bodies（在太空探索中，人工智能被用于处理望远镜和卫星的数据，识别未知天体）
解析：B与原文一致；A（在未知行星建空间站）、C（将宇航员送往未知太空区域）、D（与外星文明交流）均未提及。
31.C：推理判断题
定位原文：The combination of human wisdom and AI technology will open up more possibilities for exploring the unknown in the future（人类智慧与人工智能技术的结合，将为未来的未知探索开辟更多可能性）
解析：可推断人机结合将推动未知探索；A（AI完全取代人类）、B（AI探索无局限性）过于绝对，D（有AI人类无需承担风险）与原文不符。
语篇解读D（新闻报道）
本文是关于2026年中国“天问四号”火星探测任务发射的新闻，介绍了任务目标（探索火星未知南半球、研究火星起源与演化）、探测器配置、任务时长，以及国际航天机构的合作支持，体现了中国在太空探索领域的进步和人类探索未知的共同追求。
32.A：最佳标题题
解析：文章核心是“2026年中国天问四号任务发射，探索火星未知南半球”，A能完整概括主旨；B（中国火星探测任务史）、C（如何探索火星未知区域）、D（太空探索的国际合作）均为局部内容。
33.B：细节理解题
定位原文：This mission aims to explore the unknown southern hemisphere of Mars...It is expected to provide valuable data for studying Mars’origin and evolution（该任务旨在探索火星未知的南半球……有望为研究火星的起源和演化提供宝贵数据）
解析：B与原文一致；A（在火星建空间站）、C（将宇航员送往火星）、D（寻找火星外星文明）均未提及。
34.D：细节理解题
定位原文：the Tianwen-4 probe is equipped with advanced scientific instruments,including a high-resolution camera,a soil analyzer,and a radar detector（天问四号探测器搭载了先进的科学仪器，包括高分辨率相机、土壤分析仪和雷达探测器）
解析：原文未提及太阳能板（Solar panel）。
35.C：推理判断题
定位原文：This international cooperation is expected to accelerate the pace of exploring the unknown mysteries of Mars（这种国际合作有望加快探索火星未知奥秘的步伐）
解析：可推断国际合作有助于探索火星未知奥秘；A（探测器永久留在火星）、B（火星南半球已被探索）与原文相反，D（中国不分享探索成果）与原文“China is willing to work with other countries to share exploration results”矛盾。
第二节七选五
语篇解读（说明文）
本文介绍探索未知的四个实用方法，行文结构为“总起—分点提建议”，考点涵盖总起句、主旨句、逻辑衔接句，贴合单元“探索未知”的核心主题。
36.C：前文提出“掌握正确方法可安全高效探索未知”，后文分点介绍具体方法，此空为总起句，C“这里有一些实用的小技巧”承上启下，衔接自然。
37.A：后文核心讲“探索前收集信息、研究地形气候，做好准备避免麻烦”，此空为段落主旨句，A“先做好充分的准备”贴合段落核心。
38.D：后文举例“太空探索需要专业训练，徒步未知路线只需基础急救技能和指南针”，此空为段落主旨句，D“不同的探索需要不同的工具和技能”概括举例内容。
39.F：前文讲“团队合作对探索很重要”，后文讲“团队能互相支持，让探索更安全高效”，此空为逻辑衔接句，F“团队合作让探索更安全、更高效”衔接上下文。
40.G：后文讲“探索中可能遇到超出认知的事物，应理性观察分析而非否定”，此空为段落主旨句，G“探索中遇到意想不到的事情是正常的”贴合段落核心。
第三部分语言运用
第一节完形填空
语篇解读（记叙文）
本文讲述作者2026年因纪录片迷上古遗址探索，加入团队探寻云南未知古村落，途中克服重重困难并发现古村落文明的经历，作者从中感悟到探索未知的意义，坚定了追寻探索精神的信念，情节简单，情感真挚，贴合单元主题。
41.A
其他选项翻译：B.building（建造）；C.protecting（保护）；D.forgetting（忘记）
解析：作者因纪录片对未知古村落产生兴趣，梦想“找到”它并揭开秘密，符合语境。
42.B
其他选项翻译：A.excited（兴奋的）；C.relaxed（放松的）；D.proud（骄傲的）
解析：旅途艰难，作者多次感到“气馁的”，与后文“对未知的渴望支撑前行”形成对比。
43.A
其他选项翻译：B.proved（证明）；C.doubted（怀疑）；D.explained（解释）
解析：团队看到未知雕刻，无法确定其含义，只能“猜测”是关于村落生活的，符合语境。
44.C
其他选项翻译：A.far from（远离）；B.away from（离开）；D.out of（在……之外）
解析：石刻的发现是信号，说明团队“靠近”古村落了，符合情节发展。
45.A
其他选项翻译：B.bored（无聊的）；C.calm（平静的）；D.sad（难过的）
解析：看到保存完好的古村落建筑和陶器，作者一行人感到“震惊的”，符合情感反应。
46.B
其他选项翻译：A.moving（移动的）；C.passing（流逝的）；D.flying（飞逝的）
解析：古村落保存完好，仿佛时间被“定格”了，time was frozen为固定表达，符合语境。
47.C
其他选项翻译：A.missing（错过）；B.changing（改变）；D.creating（创造）
解析：作者一行人进行探索，收集样本并“记录”古文明的每一个细节，符合探索的行为。
48.A
其他选项翻译：B.avoided（避免）；C.caused（造成）；D.accepted（接受）
解析：探索途中，作者一行人“面临”诸多挑战，如迷路、遭遇暴雨，符合情节。
49.B
其他选项翻译：A.created（创造）；C.noticed（注意到）；D.left（离开）
解析：凭借团队合作，作者一行人“克服”了所有困难，符合积极的情节走向。
50.D
其他选项翻译：A.buying（购买）；B.showing（展示）；C.losing（失去）
解析：作者感悟到，探索不仅是为了“发现”新事物，更是为了挑战自我，贴合单元主题。
51.A
其他选项翻译：B.enjoying（享受）；C.helping（帮助）；D.teaching（教导）
解析：探索未知的过程也是“挑战”自我、克服恐惧的过程，符合作者的感悟。
52.A
其他选项翻译：B.rules（规则）；C.results（结果）；D.problems（问题）
解析：作者认为，好奇心和毅力是探索未知的“关键”，the keys to为固定搭配，符合语境。
53.B
其他选项翻译：A.hide（隐藏）；C.reduce（减少）；D.question（质疑）
解析：作者分享经历，希望激励朋友“追寻”好奇心，探索未知，符合文意。
54.B
其他选项翻译：A.trouble（麻烦）；C.pressure（压力）；D.sadness（悲伤）
解析：探索未知能给人带来意想不到的“快乐”和成长，符合积极的情感基调。
55.C
其他选项翻译：A.give up（放弃）；B.look for（寻找）；D.talk about（谈论）
解析：这次探索经历让作者坚定了信念，会一直“坚守”探索精神，贴合文章主旨。
第二节语篇语法填空
语篇解读（说明文，180词）
本文围绕“探索未知”展开，介绍探索未知的意义、所需品质、技术的作用，以及负责任探索的原则，最后呼吁人们勇敢探索未知，考点涵盖非谓语动词、时态语态、冠词、连词、固定搭配等，无重复考点，符合高考命题要求。
56.Exploring：动名词作主语，表抽象动作，句首首字母大写。
57.keep：情态动词must后接动词原形，keep calm表示“保持冷静”。
58.are used：主语AI and smart robots与use为被动关系，且为一般现在时，用一般现在时的被动语态。
59.The：定冠词the表特指，特指“探索未知的真正力量”，句首首字母大写。
60.in：固定搭配in a...way，意为“以……的方式”，in a responsible way表示“以负责任的方式”。
61.damaging：固定搭配avoid doing sth.，意为“避免做某事”，后接动名词。
62.with：固定搭配share sth.with sb./sth.，意为“与……分享某物”。
63.an：固定搭配keep an open mind，意为“保持开放的心态”，open以元音音素开头，用an。
64.to learn：固定搭配teach sb.to do sth.，意为“教某人做某事”，后接动词不定式。
65.which：非限制性定语从句关系代词，指代前文“勇敢探索未知”这件事，从句中作主语，用which。
第四部分写作
第一节应用文写作
解题思路步骤
步骤1：审题立意
体裁：英文申请信；身份：李华（高二2班学生）
核心内容：①参赛意愿②对“探索未知”的理解③相关准备（知识储备、实践经历）
词数：80-120；格式：书信格式（开头结尾已给出），行文连贯、逻辑清晰。
步骤2：搭建框架
开头：承接已给内容，表明参赛意愿，简洁明了。
中间：分两点写核心内容——先阐述对探索未知的理解（人类的核心追求，推动科技进步，需要好奇心、勇气和毅力）；再介绍自身准备（阅读探索相关书籍、参加学校科学俱乐部、准备演讲草稿）。
结尾：表达参赛期待，表明会做好充分准备，礼貌收尾。
步骤3：语言表达
用简单句+复合句结合，使用连接词（In my opinion,and,also）提升连贯性；
结合单元词汇（explore the unknown,curiosity,perseverance,scientific progress），贴合单元主题；
控制词数，避免超词或漏点，语气诚恳、正式。
第二节读后续写
解题思路步骤
步骤1：审题立意
体裁：读后续写；故事主线：作者带领沙漠探索队寻找古文明，水尽粮绝时发现未知绿洲。
续写要求：①两段，分别以指定句开头②词数150左右③情节合理、逻辑连贯④贴合“探索未知不放弃就有惊喜”的主题。
步骤2：情节构思
第一段：围绕“冲向绿洲、发现绿洲美景、休整补水”展开，加入动作描写（ran to the lake,drank the clean water）和情感描写（excited,forget tiredness），承接前文的绝望，形成情节转折。
第二段：围绕“探索绿洲、发现古文明线索”展开，写探索中发现稀有植物、古石刻（与寻找的古文明相关），升华主题——探索未知只要不放弃，总会有意外惊喜，贴合单元主旨。
步骤3：语言表达
运用细节描写，让故事更生动；使用连接词（As we got closer,What surprised us most）保证情节连贯；
贴合原文的探险语境，使用explore,replenish,ancient carvings等相关词汇；
控制每段词数，续写内容与原文衔接自然，逻辑通顺，主题鲜明。Unit 3 Exploring the Unknown测试-2025-2026学年沪外版高中英语选择性必修第三册（满分150分，考试时间120分钟）
第一部分单词练习（共两节，满分30分）
第一节单句语法填空（共10小题；每小题1.5分，满分15分）
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.By 2026,scientists________(explore)the deep sea with advanced submersibles to discover unknown marine species for decades.
2.It is the curiosity for the unknown________drives humans to make constant scientific breakthroughs.
3.The space station,________astronauts conduct experiments on unknown cosmic phenomena,has become a research hub.
4.She dreams of________(join)the Arctic expedition team to explore the unknown regions of the North Pole.
5.By March 16,2026,the research team________(uncover)three new plant species in the Amazon rainforest.
6.The reason________many young people are interested in space exploration is the desire to know the unknown.
7.It is suggested that we________(keep)an open mind when facing unknown challenges in scientific research.
8.________(Explore)the unknown requires courage,patience and scientific spirit.
9.I still remember the day in 2025________I first read about the discovery of an unknown planet and felt fascinated.
10.If we________(invest)more funds in ocean exploration,we would uncover more unknown secrets of the sea.
第二节单词拼写（共10小题；每小题1.5分，满分15分）
根据句意及所给首字母或汉语提示，写出所缺单词的正确形式
11.Humans have an inborn c________to explore the unknown world around them.（好奇心）
12.The scientific e________to the Antarctic has discovered many unknown natural phenomena.（探险）
13.Advanced technology has made it possible to p________the unknown mysteries of the universe.（探索）
14.The discovery of the new energy source is a major b________in scientific research.（突破）
15.We need to have the c________to face the risks in exploring the unknown.（勇气）
16.The________(未知的)region of the desert has attracted many brave explorers.
17.Scientists are working hard to________(揭示)the secrets of the unknown virus.
18.His________(热情)for space exploration inspired many young people to pursue scientific careers.
19.The________(发现)of a new galaxy has rewritten some astronomical theories.
20.We should respect the________(神秘的)forces of nature while exploring the unknown.
第二部分阅读（共两节，满分50分）
第一节阅读理解（共15小题；每小题2.5分，满分37.5分）
阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项。
A
Are you curious about the unknown regions of the Arctic Do you dream of exploring the frozen land and discovering hidden natural wonders In 2026,the National Arctic Research Center is launching the"Youth Arctic Exploration Camp"to invite 50 teenagers aged 16-18 to join the scientific exploration team.
The camp will last for two weeks from July 15 to 29.Participants will work with professional scientists to collect ice samples,observe Arctic animals,and record climate data in the unknown coastal areas.They will also attend lectures given by experts to learn about Arctic ecology and the latest exploration technologies.
To apply,you need to meet the following requirements:first,have a strong interest in scientific exploration and the unknown;second,be in good physical condition to adapt to the cold environment;third,submit a 300-word essay titled"My Understanding of Exploring the Unknown"before June 10.
This camp is a precious chance to get close to the unknown Arctic world,gain practical scientific experience,and make friends with like-minded peers.Don’t miss this opportunity to satisfy your curiosity and challenge yourself!For more information,please visit our official website or send an email to arcticexplore2026@.
21.What is the main purpose of the Youth Arctic Exploration Camp
A.To train professional Arctic scientists
B.To help teenagers explore the Arctic unknown and gain scientific experience
C.To collect ice samples for scientific research
D.To promote tourism in the Arctic region
22.Which of the following is a requirement for applicants
A.Having rich experience in Arctic exploration
B.Being under 16 years old
C.Submitting an essay before June 10
D.Being able to speak three foreign languages
23.What can we infer from the passage
A.The camp will be held in winter to experience extreme cold
B.Participants will live independently in the Arctic
C.The camp combines practical activities and academic lectures
D.Only top students are allowed to apply for the camp
B
In 2026,I joined a deep-sea exploration team as a junior researcher.Our goal was to explore the unknown seabed 10,000 meters below the Pacific Ocean,a region rarely visited by humans.Before the trip,I was both excited and nervous—no one knew what we would encounter in that dark and mysterious world.
On the day of the dive,I boarded the advanced submersible"Deep Discovery".As we descended,the seawater gradually turned from blue to black,and the pressure increased dramatically.At 8,000 meters,our sonar detected an unknown object moving slowly.We held our breath,wondering if it was a new marine species.
When we approached,we were shocked to see a huge,glowing creature with a body like a jellyfish but with unique tentacles.It swam gently around our submersible,leaving a trail of bright light.We quickly took photos and collected data,afraid of scaring it away.This was the first time humans had ever seen such a creature.
After returning to the surface,we analyzed the data and confirmed it was a new species.The discovery made me realize that the ocean is full of unknown wonders,and every exploration brings unexpected surprises.It also taught me that exploring the unknown requires courage to face the unknown and patience to observe carefully.
24.Why was the author nervous before the deep-sea trip
A.The submersible was not advanced enough
B.No one knew what they would encounter in the unknown seabed
C.The pressure in the deep sea was too low
D.He had no experience in scientific research
25.The underlined word"descended"in Paragraph 2 probably means________.
A.went down B.went up C.moved fast D.stopped suddenly
26.What can we learn from the author’s exploration experience
A.The deep sea is not suitable for marine creatures
B.Exploring the unknown always brings danger
C.Patience and courage are necessary for exploring the unknown
D.New marine species are easy to discover in the deep sea
27.What is the author’s attitude towards exploring the unknown
A.Doubtful B.Indifferent C.Positive D.Critical
C
In 2026,artificial intelligence(AI)has become a powerful tool for exploring the unknown,revolutionizing the way humans discover new things in fields like space,ocean,and archaeology.With its ability to analyze massive data and predict patterns,AI is helping scientists overcome challenges that were once impossible to solve.
In space exploration,AI is used to process data from telescopes and satellites to identify unknown celestial bodies.For example,the AI system developed by NASA has discovered three unknown planets by analyzing billions of star images—a task that would take humans hundreds of years to complete manually.AI can also predict cosmic storms,helping astronauts avoid risks in unknown space regions.
In ocean exploration,AI-powered underwater robots can dive to extreme depths and collect data in unknown seabed areas.These robots are equipped with advanced sensors that can detect unknown marine species and map uncharted seabeds.Unlike humans,they can withstand high pressure and dark environments,making them ideal for exploring the most mysterious parts of the ocean.
In archaeology,AI is helping researchers discover unknown ancient civilizations.By analyzing satellite images and geological data,AI can identify potential excavation sites that humans might miss.For instance,an AI system recently found an unknown city ruins in the Sahara Desert,which dates back to 3000 BC.
However,AI is just a tool.Exploring the unknown still requires human curiosity,courage,and scientific spirit.AI can process data and provide insights,but it is humans who make decisions and take action.The combination of human wisdom and AI technology will open up more possibilities for exploring the unknown in the future.
28.What is the main idea of this passage
A.The development of AI technology in 2026
B.How AI helps humans explore the unknown in different fields
C.The advantages and disadvantages of AI technology
D.Why humans are interested in exploring the unknown
29.Which field is NOT mentioned where AI helps explore the unknown
A.Space B.Ocean C.Medicine D.Archaeology
30.What can AI do in space exploration according to the passage
A.Build space stations on unknown planets
B.Discover unknown celestial bodies by analyzing data
C.Transport astronauts to unknown space regions
D.Communicate with alien civilizations
31.What can we infer from the passage
A.AI can replace humans in exploring the unknown completely
B.AI technology has no limitations in exploring the unknown
C.The combination of AI and human wisdom will promote unknown exploration
D.Humans no longer need to take risks in exploring the unknown with AI
D
China National Space Administration(CNSA)officially launched the Tianwen-4 Mars exploration mission on Monday.This mission aims to explore the unknown southern hemisphere of Mars,a region that has never been visited by any space probe before.It is expected to provide valuable data for studying Mars’ origin and evolution,and the launch timing is specially arranged to align with the optimal Mars transfer window in 2026.
According to CNSA,the Tianwen-4 probe is equipped with advanced scientific instruments,including a high-resolution camera,a soil analyzer,and a radar detector.These instruments will help scientists map the unknown terrain of Mars’ southern hemisphere,detect possible water resources,and search for signs of ancient microbial life.The probe also carries a new type of communication device to ensure stable data transmission between Mars and Earth,even in the complex electromagnetic environment of the unknown Martian region.
The mission will last for 18 months.The probe will take about seven months to reach Mars and then spend 11 months conducting scientific exploration.During this period,it will send back real-time data and images to Earth.Experts say that exploring the unknown southern hemisphere of Mars is of great significance,as it may hold clues to Mars’ past climate and whether the planet was once suitable for life.Unlike the previously explored northern hemisphere,the southern hemisphere has more complex terrain and unknown geological structures,which are key to unlocking Mars’ evolutionary history.
"This mission is a major step forward in China’s space exploration cause,"said a CNSA spokesperson."We hope to uncover more unknown secrets of Mars and contribute to the global scientific community’s understanding of the red planet.Exploring the unknown is an eternal pursuit of humanity,and China is willing to work with other countries to share exploration results and promote the progress of global space science."
Many international space agencies have expressed their support for the Tianwen-4 mission.NASA and the European Space Agency have announced that they will cooperate with CNSA in data analysis and research.This international cooperation is expected to accelerate the pace of exploring the unknown mysteries of Mars and help humans gain a more comprehensive understanding of the red planet.
32.What is the best title for this passage
A.China’s Tianwen-4 Mission Launches to Explore Mars’ Unknown Southern Hemisphere
B.The History of China’s Mars Exploration Missions
C.How to Explore the Unknown Regions of Mars
D.International Cooperation in Space Exploration
33.What is the aim of the Tianwen-4 mission
A.To build a space station on Mars
B.To explore Mars’ unknown southern hemisphere and study its origin and evolution
C.To transport astronauts to Mars
D.To search for alien civilizations on Mars
34.What equipment is NOT mentioned on the Tianwen-4 probe
A.High-resolution camera B.Soil analyzer C.Radar detector D.Solar panel
35.What can we infer from the passage
A.The Tianwen-4 probe will stay on Mars permanently
B.The unknown southern hemisphere of Mars has been explored before
C.International cooperation will help explore Mars’ unknown mysteries
D.China will not share the exploration results with other countries
第二节七选五(共5小题；每小题2.5分，满分12.5分)
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
How to Explore the Unknown Wisely
Exploring the unknown is human’s natural desire,but it also has risks.With proper methods,we can explore safely and effectively.36.______
37.______Blind curiosity brings danger.Before exploration,collect information and study the terrain,climate and possible risks.Good preparation helps avoid unnecessary trouble.
Equip yourself with right skills and tools.38.______Space exploration needs professional training,while hiking unknown trails only requires basic first-aid skills and a compass.
Teamwork is important for exploration.39.______A team can support each other when facing difficulties,making exploration safer and more efficient.
Keep an open mind to the unknown.40.______We may meet things beyond our knowledge,but we should observe and analyze them rationally instead of denying them.
选项
A.Do thorough preparation first
B.Curiosity makes exploration possible
C.Here are some useful practical tips
D.Different exploration needs different tools and skills
E.Exploring alone is the best way to discover new things
F.Teamwork makes exploration safer and more efficient
G.It’s normal to meet unexpected things in exploration
第三部分：语言运用(共两节，满分 30分)
第一节：完型填空(共15小题;每小题 1分，满分15分)
阅读下面短文，从短文后各题所给的 A、B、C 和 D 四个选项中，选出可以填入空白处的最佳选项。
In 2026,I fell in love with exploring ancient ruins.A documentary about an unknown Yunnan village made me dream of 41.______it and uncovering its secrets.
After months of preparation,I joined an exploration team.The first day,we walked through dense forests.The tough journey made me feel 42.______many times,but the desire for the unknown kept me going.
On the third day,we found a stone gate with unknown carvings.We 43.______the carvings were about the village’s life.This sign told us we were 44.______the village.
When we entered it,we were 45..The well-preserved houses and pottery made it feel like time was 46..We collected samples and 47.______every detail of this ancient civilization.
During the trip,we 48.______many challenges.We got lost in a cave and met a heavy rainstorm,but with teamwork,we 49.______all difficulties.
This experience let me know exploration is not just about 50.______new things,but also about 51.______ourselves and overcoming fears.Curiosity and perseverance are the 52.______to exploring the unknown.
Now I often share my story with friends,hoping to inspire them to 53.______their curiosity.Exploring the unknown brings us unexpected 54.______and growth.I will always 55.______the spirit of exploration.
41.A.finding B.building C.protecting D.forgetting
42.A.excited B.discouraged C.relaxed D.proud
43.A.guessed B.proved C.doubted D.explained
44.A.far from B.away from C.close to D.out of
45.A.shocked B.bored C.calm D.sad
46.A.moving B.frozen C.passing D.flying
47.A.missing B.changing C.recording D.creating
48.A.faced B.avoided C.caused D.accepted
49.A.created B.overcame C.noticed D.left
50.A.buying B.showing C.losing D.discovering
51.A.challenging B.enjoying C.helping D.teaching
52.A.keys B.rules C.results D.problems
53.A.hide B.follow C.reduce D.question
54.A.trouble B.joy C.pressure D.sadness
55.A.give up B.look for C.stick to D.talk about
第二节：语篇语法填空(10个小题；每小题1.5分，满分15分)
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。
Exploring the unknown is a lifelong pursuit of humans.56.______(explore)the unknown helps us expand our knowledge and make scientific progress.
It needs great courage and patience.Explorers must 57.______(keep)calm when facing dangers.Advanced technology also plays a big role—AI and smart robots 58.______(use)widely in space and ocean exploration now.They help us collect data and reduce risks,but they are just tools.59.______real power comes from human curiosity.
We should explore the unknown 60.______a responsible way.We must protect the natural environment and cultural relics we find,and avoid 61.______(damage)them.We should also share our findings 62.______the world to promote common progress.
Keep 63.______open mind when exploring.Mistakes and failures are normal,and they teach us 64.______(learn)from setbacks.Every step we take is a step forward.Let’s explore the unknown bravely,65.______will make our world better.
第四部分写作(共两节，满分40分)
第一节应用文写作(满分15分)
假定你是李华，你校将举办"探索未知·拥抱科学"主题演讲比赛，现向全校同学征集参赛选手。请你用英语给校学生会写一封申请信，内容包括：
1.你的参赛意愿；
2.你对"探索未知"的理解；
3.你的相关准备（如知识储备、实践经历等）。
注意：1.词数80-120；2.行文连贯，逻辑清晰；3.格式正确，开头结尾已给出。
Dear Sir/Madam,
I’m Li Hua,a student from Class 2,Grade 11.I’m writing to apply for the"Explore the Unknown·Embrace Science"speech contest.
Yours sincerely,
Li Hua
第二节读后续写(满分25分)
阅读下面短文，根据所给情节进行续写，使之构成一个完整的故事。词数150左右，续写部分分为两段，每段开头已为你写好。
In 2026,I joined a desert exploration team to search for traces of an unknown ancient civilization in the Gobi Desert.The journey was extremely tough—scorching sun during the day,freezing cold at night,and scarce water and food.After walking for five days,we still found no clues,and our water supply was almost exhausted.Everyone felt discouraged,and some even suggested giving up.
As the team leader,I tried to cheer everyone up:"We’ve come so far.Let’s keep going for another day.If there’s still no discovery,we’ll turn back."My words gave everyone a little courage.On the sixth morning,we set off again,struggling through the sand dunes.Suddenly,one of the team members shouted excitedly:"Look!There’s something green in the distance!"We all looked up and saw a faint green spot on the endless yellow sand.
Paragraph 1:
We rushed towards the green spot with the last of our strength.
Paragraph 2:
After resting and replenishing water,we started to explore the unknown oasis.

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