2025新外研版八上英语专项练习之完形填空-Unit3(含答案解析)

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2025新外研版八上英语专项练习之完形填空-Unit3(含答案解析)

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Unit3. Make it happen.
A
AI: Powering Technological Advancements
Artificial Intelligence (AI) is becoming increasingly 1 in modern technology. It
helps solve problems and makes life 2 .
In healthcare, AI can 3 doctors. For example, special AI tools can quickly 4
diseases by analyzing patients’ data. This helps doctors make 5 decisions. In agriculture,
AI robots 6 crops. They can tell if plants need water or 7 , making farming easier
and more productive.
AI also plays a key role in 8 . Smartphones use AI to recognize voices and faces.
Maps with AI can 9 the best routes, saving time for drivers. Even schools are using AI.
Teachers use it to 10 students’ learning progress and give 11 advice.
However, there are 12 too. Some worry AI might replace jobs. But experts say AI
is here to 13 humans, not replace them. The future of AI depends on 14 we use it.
Let’s learn more about AI and 15 it to create a better world.
( )1.A. expensive B. important C. difficult D. strange
( )2.A. harder B. slower C. better D. busier
( )3.A. help B. stop C. replace D. forget
( )4.A. hide B. treat C. prevent D. discover
( )5.A. bad B. wrong C. quick D. late
( )6.A. damage B. check C. eat D. sell
( )7.A. air B. money C. soil D. medicine
( )8.A. daily life B. history C. art D. sports
( )9.A. draw B. suggest C. miss D. break
( )10.A. ignore B. change C. monitor D. finish
( )11.A. useless B. helpful C. funny D. harmful
( )12.A. questions B. answers C. problems D. solutions
( )13.A. compete with B. work with C. fight against D. look at
( )14.A. when B. where C. how D. why
( )15.A. use B. refuse C. fear D. forget
B
Great Inventions That Changed the World
Throughout history, many inventions have made our lives better. These creations not
only 1 how people lived but also shaped the future.
One of the most important inventions is the 2 . Invented in ancient China, it
allowed people to record knowledge and spread ideas. Before its invention, writing was
difficult and expensive. Thanks to this tool, 3 like literature and science could develop
more quickly.
The 4 is another life - changing invention. It was 5 by James Watt in the 18th
century. This invention powered trains and factories, 6 the start of the Industrial
Revolution. It made 7 faster and easier, bringing goods to people all over the world.
In the 20th century, the 8 came into our lives. Invented by Alexander Graham Bell,
it made 9 between people far apart possible. No longer did people have to wait weeks
for letters. They could 10 their thoughts instantly.
More recently, the Internet has become one of the most 11 inventions. It connects
people across the globe, making information 12 to everyone. Students can 13
knowledge online, and businesses can sell products worldwide.
These inventions remind us that human creativity can 14 problems and improve
life. As students, we should learn from the past inventors and try to 15 new things to
make the world even better.
( )1.A. saved B. changed C. protected D. showed
( )2.A. compass B. gunpowder C. paper D. silk
( )3.A. fields B. games C. sports D. parties
( )4.A. car B. ship C. steam engine D. airplane
( )5.A. discovered B. invented C. found D. bought
( )6.A. leading to B. looking for C. putting off D. taking away
( )7.A. thinking B. traveling C. sleeping D. reading
( )8.A. computer B. television C. radio D. telephone
( )9.A. communication B. competition C. celebration D. cooperation
( )10.A. forget B. share C. hide D. lose
( )11.A. useless B. harmful C. important D. expensive
( )12.A. secret B. similar C. available D. difficult
( )13.A. steal B. learn C. forget D. sell
( )14.A. create B. find C. solve D. make
( )15.A. destroy B. repair C. copy D. invent
C
Useful Tips for Everyday Life
Do you know small tricks can make life easier Here are some tips that 1 a big
difference.
To 2 ink stains on clothes, pour some milk on the spot and rub gently. The fat in
milk helps 3 the stain. Another tip: if you 4 your phone in water, don’t turn it on!
Remove the battery and place it in rice – rice absorbs 5 .
For kitchen problems, salt can be magic. When boiling eggs, add a little salt to 6
them from cracking. To 7 fruit fresh longer, put a piece of bread in the fridge with
them. The bread takes in extra 8 .
Organizing schoolbags can be 9 . Try using color - coded folders: blue for math,
green for science. This helps you 10 things quickly. If you often 11 your keys, put a
hook by the door – a fixed place 12 forgetfulness.
During exams, here’s a clever 13 to remember facts: write notes on colorful paper.
Studies show colors can 14 memory. And never study on a full stomach – it makes you
15 !
These tips may seem simple, but they work. Try them and see the difference!
( )1.A. take B. make C. bring D. give
( )2.A. deal with B. look for C. wait for D. ask for
( )3.A. keep B. move C. remove D. find
( )4.A. drop B. use C. buy D. sell
( )5.A. heat B. water C. light D. air
( )6.A. stop B. help C. make D. have
( )7.A. keep B. eat C. grow D. cook
( )8.A. sugar B. salt C. moisture D. flavor
( )9.A. easy B. fun C. boring D. useful
( )10.A. lose B. find C. break D. forget
( )11.A. miss B. carry C. forget D. lose
( )12.A. increases B. reduces C. causes D. shows
( )13.A. way B. problem C. mistake D. game
( )14.A. harm B. improve C. break D. test
( )15.A. active B. sleepy C. excited D. clever
D
Drones: Helping Farmers Transport Crops
Drones are changing the way farmers work. These flying machines can 1 carry
crops and help in many ways.
In some areas, farms are far from towns. Farmers used to 2 hours driving trucks to
transport vegetables and fruits. But now, drones can do this job 3 . They can fly over
mountains and rivers, 4 food to people quickly.
Drones are also 5 in bad weather. When roads are 6 due to heavy rain, trucks can’
t pass. Drones can still 7 the crops to markets without delays. This 8 farmers from
losing money.
Moreover, drones can carry 9 that are easy to break, like eggs or glass bottles of
juice. Their 10 flight makes sure the goods stay safe. Some drones even have 11
boxes to keep food fresh.
For small farms, drones are a big 12 . They cost less than trucks and need fewer
people to 13 . This means farmers can 14 more money and spend it on better seeds.
The future of farming is here! Drones are not only 15 but also making the world
greener by reducing truck pollution.
( )1.A. hardly B. easily C. slowly D. carefully
( )2.A. spend B. save C. waste D. lose
( )3.A. worse B. better C. louder D. cheaper
( )4.A. selling B. showing C. delivering D. buying
( )5.A. useless B. helpful C. harmful D. beautiful
( )6.A. dry B. wide C. broken D. clean
( )7.A. bring B. take C. make D. eat
( )8.A. stops B. helps C. makes D. has
( )9.A. goods B. books C. clothes D. toys
( )10.A. fast B. slow C. smooth D. noisy
( )11.A. warm B. cool C. empty D. heavy
( )12.A. problem B. mistake C. help D. game
( )13.A. drive B. fly C. buy D. sell
( )14.A. make B. lose C. borrow D. spend
( )15.A. expensive B. cheap C. useful D. difficult
答案与解析
A篇
1.B. 解析:“important” 意为 “重要的”。人工智能在现代科技中变得越来越 “重要”,
与后文提到的 AI 在医疗、农业等多领域的应用相呼应,突出其关键作用。A 选项
“expensive”(昂贵的)、C 选项 “difficult”(困难的)、D 选项 “strange”(奇怪的)均
不符合 AI 对科技发展的积极影响这一语境。
2.C. 解析:“better” 意为 “更好”。AI 帮助解决问题,使生活 “更好”,体现其积极意
义。A 选项 “harder”(更困难)、B 选项 “slower”(更缓慢)、D 选项 “busier”(更
忙碌)均为负面或无关表述,与 AI 提升生活质量的语义矛盾。
3.A. 解析:“help” 意为 “帮助”。在医疗领域,AI 能够 “帮助” 医生,与后文 AI 工
具分析患者数据的具体事例呼应。B 选项 “stop”(阻止)、C 选项 “replace”(取代)、
D 选项 “forget”(忘记)均不符合医疗场景中 AI 辅助医生的逻辑。
4.D. 解析:“discover” 意为 “发现”。特殊的 AI 工具通过分析患者数据能快速 “发
现” 疾病,符合医疗诊断中数据驱动的逻辑。A 选项 “hide”(隐藏)、B 选项 “treat”
(治疗)、C 选项 “prevent”(预防)均与 “分析数据” 直接作用于疾病检测的语境不
符。
5.C. 解析:“quick” 意为 “快速的”。AI 辅助分析数据帮助医生做出 “快速的” 决策,
与前文 “quickly discover diseases” 形成因果关系,强调效率提升。A 选项 “bad”(糟
糕的)、B 选项 “wrong”(错误的)、D 选项 “late”(迟的)均与积极的医疗决策语境
矛盾。
6.B. 解析:“check” 意为 “检查”。在农业中,AI 机器人 “检查” 农作物状态,符合
智能农业中监测作物生长的场景。A 选项 “damage”(破坏)、C 选项 “eat”(食用)、
D 选项 “sell”(售卖)均与机器人在农业中的功能不符。
7.D. 解析:“medicine” 意为 “药物”。AI 机器人能判断植物是否需要水或 “药物”,
属于农作物养护的范畴,与 “water” 并列。A 选项 “air”(空气)、B 选项 “money”
(金钱)、C 选项 “soil”(土壤)均不符合植物养护的常规需求逻辑。
8.A. 解析:“daily life” 意为 “日常生活”。后文提到的智能手机语音识别、AI 地图等
例子属于 “日常生活” 场景,与 B 选项 “history”(历史)、C 选项 “art”(艺术)、D
选项 “sports”(运动)无关,故选 A。
9.B. 解析:“suggest” 意为 “建议”。搭载 AI 的地图能 “建议” 最佳路线,符合导航
功能的实际应用。A 选项 “draw”(绘制)、C 选项 “miss”(错过)、D 选项 “break”
(打破)均与地图提供路线建议的功能不符。
10.C. 解析:“monitor” 意为 “监测”。教师使用 AI “监测” 学生的学习进度,符合教
育科技中数据化教学管理的场景。A 选项 “ignore”(忽视)、B 选项 “change”(改变)、
D 选项 “finish”(完成)均与 “学习进度” 的跟踪需求不匹配。
11.B. 解析:“helpful” 意为 “有帮助的”。AI 在监测进度后给出 “有帮助的” 建议,
与前文 “monitor progress” 形成正向呼应。A 选项 “useless”(无用的)、C 选项 “funny”
(有趣的)、D 选项 “harmful”(有害的)均不符合教育场景的积极语义。
12.C. 解析:“problems” 意为 “问题”。后文提到 “有人担心 AI 可能取代工作”,这
属于 AI 带来的 “问题”,与 A 选项 “questions”(疑问)、B 选项 “answers”(答案)、
D 选项 “solutions”(解决方案)的逻辑不符,故选 C。
13.B. 解析:“work with” 意为 “与…… 合作”。专家表示 AI 是来 “与人类合作” 的,
而非取代人类,体现积极的人机协作理念。A 选项 “compete with”(竞争)、C 选项
“fight against”(对抗)、D 选项 “look at”(看待)均与 “not replace them” 的语义矛
盾。
14.C. 解析:“how” 意为 “如何”。AI 的未来取决于 “如何” 使用它,强调使用方式
的重要性。A 选项 “when”(何时)、B 选项 “where”(何地)、D 选项 “why”(为何)
均与 “使用方式” 这一核心话题无关。
15.A. 解析:“use” 意为 “使用”。呼吁大家学习 AI 并 “使用” 它创造更美好的世界,
与前文 “depends on how we use it” 形成呼应。B 选项 “refuse”(拒绝)、C 选项 “fear”
(恐惧)、D 选项 “forget”(忘记)均与积极利用 AI 的主题矛盾。
B篇
1.B. 解析:根据上下文,这些发明不仅 “改变” 了人们的生活方式,还塑造了未来。
A 选项 “拯救”、C 选项 “保护”、D 选项 “展示” 均不符合语境,只有 B 选项
“changed”(改变)符合语义。
2.C. 解析:根据后文 “allowed people to record knowledge”(允许人们记录知识)可知,
这里指中国古代发明的 “纸”。A 选项 “指南针”、B 选项 “火药”、D 选项 “丝绸” 均
与记录知识无关,C 选项 “paper” 正确。
3.A. 解析:此处指文学和科学等 “领域” 因纸的发明而更快发展。B 选项 “游戏”、
C 选项 “运动”、D 选项 “聚会” 不符合语境,A 选项 “fields”(领域)符合语义。
4.C. 解析:根据后文 “powered trains and factories”(为火车和工厂供能)及 “James
Watt”(瓦特)可知,这里指 “蒸汽机”。A 选项 “汽车”、B 选项 “轮船”、D 选项 “飞
机” 均与瓦特无关,C 选项 “steam engine” 正确。
5.B. 解析:发明物应用 “invented”(发明),A 选项 “discovered”(发现)用于自然
事物,C 选项 “found”(找到)、D 选项 “bought”(购买)不符合语义,故选 B。
6.A. 解析:蒸汽机 “导致” 了工业革命的开始。B 选项 “寻找”、C 选项 “推迟”、D
选项 “拿走” 均不符合逻辑,A 选项 “leading to”(导致)正确。
7.B. 解析:蒸汽机让 “旅行” 更快更容易。A 选项 “思考”、C 选项 “睡觉”、D 选
项 “阅读” 与火车和工厂的功能无关,B 选项 “traveling” 符合语境。
8.D. 解析:根据 “Alexander Graham Bell”(贝尔)可知,此处指 “电话”。A 选项 “电
脑”、B 选项 “电视”、C 选项 “收音机” 均非贝尔发明,D 选项 “telephone” 正确。
9.A. 解析:电话使远距离 “通信” 成为可能。B 选项 “竞争”、C 选项 “庆祝”、D 选
项 “合作” 不符合电话的功能,A 选项 “communication” 正确。
10.B. 解析:人们可以通过电话 “分享” 想法。A 选项 “忘记”、C 选项 “隐藏”、D 选
项 “失去” 不符合语义,B 选项 “share”(分享)符合语境。
11.C. 解析:互联网是最重要的发明之一。A 选项 “无用的”、B 选项 “有害的”、D 选
项 “昂贵的” 与常识不符,C 选项 “important” 正确。
12.C. 解析:互联网让信息对所有人 “可用”。A 选项 “秘密的”、B 选项 “相似的”、
D 选项 “困难的” 不符合语义,C 选项 “available”(可获得的)正确。
13.B. 解析:学生可以在网上 “学习” 知识。A 选项 “偷窃”、C 选项 “忘记”、D 选
项 “出售” 不符合语境,B 选项 “learn” 正确。
14.C. 解析:人类的创造力可以 “解决” 问题。A 选项 “创造”、B 选项 “发现”、D 选
项 “制造” 与 “problems” 搭配不当,C 选项 “solve”(解决)正确。
15.D. 解析:我们应尝试 “发明” 新事物。A 选项 “摧毁”、B 选项 “修理”、C 选项
“复制” 不符合语义,D 选项 “invent”(发明)呼应主题。
C篇
1.B. 解析:“make a big difference” 是固定搭配,意为 “产生很大影响”,文中表示这
些小窍门能带来很大改变,A 选项 “take”(拿,取)、C 选项 “bring”(带来)、D 选
项 “give”(给)均不能与 “a big difference” 构成正确搭配,所以选 B。
2.A. 解析:“deal with” 意为 “处理”,此处表示处理衣服上的墨水污渍,B 选项 “look
for”(寻找)、C 选项 “wait for”(等待)、D 选项 “ask for”(请求)均不符合 “处理
污渍” 的语境,所以选 A。
3.C. 解析:“remove” 意为 “去除”,牛奶中的脂肪有助于 “去除” 污渍,A 选项 “keep”
(保持)、B 选项 “move”(移动)、D 选项 “find”(找到)均不符合去除污渍的语义,
所以选 C。
4.A. 解析:“drop” 意为 “掉落”,“drop your phone in water” 表示把手机掉进水里,B
选项 “use”(使用)、C 选项 “buy”(买)、D 选项 “sell”(卖)均不符合手机掉进水
里这一情境,所以选 A。
5.B. 解析:根据前文手机掉进水里,大米能吸收 “水”,A 选项 “heat”(热量)、C 选
项 “light”(光)、D 选项 “air”(空气)均不符合大米吸水救手机的常识,所以选 B。
6.A. 解析:“stop...from...” 是固定短语,意为 “阻止…… 做某事”,煮鸡蛋时加一点
盐能防止鸡蛋裂开,B 选项 “help”(帮助)、C 选项 “make”(使,让)、D 选项 “have”
(有)均不能与 “from” 构成 “防止” 的语义,所以选 A。
7.A. 解析:“keep” 有 “保持” 之意,“keep fruit fresh” 表示保持水果新鲜,B 选项 “eat”
(吃)、C 选项 “grow”(种植)、D 选项 “cook”(烹饪)均不符合让水果保持新鲜的
语境,所以选 A。
8.C. 解析:“moisture” 意为 “水分”,面包能吸收多余的水分,从而让水果保鲜更久,
A 选项 “sugar”(糖)、B 选项 “salt”(盐)、D 选项 “flavor”(味道)均与保持水果
新鲜的原理无关,所以选 C。
9.B. 解析:根据后文用彩色文件夹整理书包的有趣方法,可知整理书包可以是 “有趣
的”,A 选项 “easy”(容易的)、C 选项 “boring”(无聊的)、D 选项 “useful”(有用
的)相比之下,B 选项 “fun” 更能体现这种方法带来的体验,所以选 B。
10.B. 解析:用彩色文件夹分类能帮助快速 “找到” 东西,A 选项 “lose”(丢失)、C
选项 “break”(打破)、D 选项 “forget”(忘记)均不符合快速找到东西的语义,所以
选 B。
11.D. 解析:“lose” 意为 “丢失”,如果你经常 “丢失” 钥匙,在门边放个挂钩,A 选
项 “miss”(错过,想念)、B 选项 “carry”(携带)、C 选项 “forget”(忘记)均不符
合丢钥匙的语境,所以选 D。
12.B. 解析:“reduces” 意为 “减少”,固定的地方能减少遗忘,A 选项 “increases”(增
加)、C 选项 “causes”(导致)、D 选项 “shows”(展示)均与固定位置防止遗忘的
语义相悖,所以选 B。
13.A. 解析:“way” 意为 “方法”,写在彩色纸上是记住知识点的聪明 “方法”,B 选
项 “problem”(问题)、C 选项 “mistake”(错误)、D 选项 “game”(游戏)均不符合
记忆方法的语境,所以选 A。
14.B. 解析:“improve” 意为 “提高,改善”,研究表明颜色能 “提高” 记忆力,A 选
项 “harm”(伤害)、C 选项 “break”(打破)、D 选项 “test”(测试)均不符合颜色有
助于记忆的积极语义,所以选 B。
15.B. 解析:“sleepy” 意为 “困倦的”,吃饱了学习会让人 “困倦”,A 选项 “active”
(活跃的)、C 选项 “excited”(兴奋的)、D 选项 “clever”(聪明的)均不符合吃饱
后学习的状态,所以选 B。
D篇
1.B. 解析:“easily” 意为 “容易地”。无人机作为飞行机器能够 “容易地” 运输农作物,
突出其便捷性。A 选项 “hardly”(几乎不)与语义相悖;C 选项 “slowly”(缓慢地)
未体现无人机优势;D 选项 “carefully”(仔细地)与运输效率无关,所以选 B。
2.A. 解析:“spend” 意为 “花费”,常用于 “spend + 时间 + doing sth.” 结构,此处指
农民过去 “花费” 数小时开车运输蔬果。B 选项 “save”(节省)、C 选项 “waste”(浪
费)、D 选项 “lose”(失去)均不符合 “花费时间运输” 的语境,所以选 A。
3.B. 解析:“better” 意为 “更好地”。与过去用卡车运输相比,无人机能把运输工作做
得 “更好”,体现技术进步。A 选项 “worse”(更差)、C 选项 “louder”(更响亮)、D
选项 “cheaper”(更便宜)未直接体现运输效果的提升,所以选 B。
4.C. 解析:“delivering” 意为 “递送”。无人机飞越山川,快速将食物 “递送” 给人们,
符合运输的核心动作。A 选项 “selling”(销售)、B 选项 “showing”(展示)、D 选
项 “buying”(购买)均偏离 “运输” 的主题,所以选 C。
5.B. 解析:“helpful” 意为 “有帮助的”。后文描述恶劣天气下无人机仍能运输,证明
其 “有帮助”。A 选项 “useless”(无用的)、C 选项 “harmful”(有害的)、D 选项
“beautiful”(美丽的)与文意不符,所以选 B。
6.C. 解析:“broken” 意为 “损坏的”。因暴雨导致道路 “损坏”,卡车无法通行,解释
无人机发挥作用的原因。A 选项 “dry”(干燥的)、B 选项 “wide”(宽阔的)、D 选
项 “clean”(干净的)均与暴雨后道路受阻的情境不符,所以选 C。
7.B. 解析:“take” 意为 “带走;运送”,“take...to...” 表示 “把…… 带到……”,指无
人机将农作物运到市场。A 选项 “bring”(带来)方向错误;C 选项 “make”(制作)、
D 选项 “eat”(吃)与运输无关,所以选 B。
8.A. 解析:“stops” 意为 “阻止”,“stop...from...” 为固定搭配,指无人机避免农民遭
受损失。B 选项 “helps”(帮助)、C 选项 “makes”(使)、D 选项 “has”(有)均无
法与 “from losing money” 构成正确搭配,所以选 A。
9.A. 解析:“goods” 意为 “货物”。无人机运输易破损的 “货物”,如鸡蛋、果汁瓶,
B 选项 “books”(书)、C 选项 “clothes”(衣服)、D 选项 “toys”(玩具)不属于农
作物运输范畴,所以选 A。
10.C. 解析:“smooth” 意为 “平稳的”。无人机 “平稳的” 飞行确保货物安全,A 选
项 “fast”(快速的)、B 选项 “slow”(缓慢的)、D 选项 “noisy”(嘈杂的)均与 “货
物安全” 无直接关联,所以选 C。
11.B. 解析:“cool” 意为 “凉爽的”。部分无人机配备 “凉爽的” 箱子保鲜食物,A 选
项 “warm”(温暖的)、C 选项 “empty”(空的)、D 选项 “heavy”(重的)均不符合
保鲜需求,所以选 B。
12.C. 解析:“help” 意为 “帮助”。对小农场而言,无人机成本低、人力需求少,是巨
大的 “帮助”。A 选项 “problem”(问题)、B 选项 “mistake”(错误)、D 选项 “game”
(游戏)与积极作用不符,所以选 C。
13.B. 解析:“fly” 意为 “操作飞行”。无人机需要更少人 “操作飞行”,A 选项 “drive”
(驾驶)用于车辆;C 选项 “buy”(购买)、D 选项 “sell”(销售)与操作无人机无
关,所以选 B。
14.A. 解析:“make” 意为 “赚取”,“make money” 表示 “赚钱”。使用无人机降低成
本,农民能 “赚取” 更多钱用于购买种子。B 选项 “lose”(失去)、C 选项 “borrow”
(借)、D 选项 “spend”(花费)与文意相悖,所以选 A。
15.C. 解析:“useful” 意为 “有用的”。总结全文,无人机不仅 “有用”,还能减少污
染,A 选项 “expensive”(昂贵的)、B 选项 “cheap”(便宜的)、D 选项 “difficult”
(困难的)均未全面概括其价值,所以选 C。

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