Unit 3 Curious minds单元重点易错专项训练2026-2027学年沪教版（五四学制八年级英语上册

**基本信息** 聚焦单元9大核心考点，通过易错点精准提示+分层训练（基础/提升/拓展）构建系统性方法体系，逻辑覆盖语法结构-应用句式-词汇辨析递进链条，助力语言能力与思维品质提升。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |9大考点|每考点9题（3基础+3提升+3拓展）|各考点明确易错规则（如现在完成时时间状语、被动语态结构、非谓语动词搭配等）|从语法结构（时态/语态）到应用句式（从句/固定结构）再到词汇辨析，层层递进|

沪教版（五四学制·2026）八年级上册 Unit 3 Curious minds 单元重点易错专项训练 沪教版（五四学制·2026）八年级上册 Unit 3 Curious minds 单元重点易错专项训练 紧扣最新教材（2026沪教版五四学制） | 9大考点 | 81道精选题 姓名：__________ 班级：__________ 得分：__________ 考点一：现在完成时（have/has done）—— 构成与常用时间状语 ⚠ 易错点：have/has + 过去分词。I/You/We/They→have；He/She/Jam→has。already（句中）/yet（句末否定/疑问） ⚠ ever（曾经）/never（从未）/just（刚刚）/since（自从+点时间）/for（持续+段）。不能与具体过去时间连用（如yesterday/last week） ▷ 基础题（选择题） ▷（ ）1. Lily ______ already finished her science project about plants. A. have B. has C. had D. is ▷（ ）2. ______ you ever visited a science museum in Kunming? A. Have B. Has C. Did D. Do ▷（ ）3. Jam hasn't found the answer to the question ______. A. already B. just C. yet D. ever ◇ 提升题（选择题） ◇（ ）1. Chen Wu ______ never seen such a strange experiment before today. A. have B. has C. had D. is ◇（ ）2. How long ______ Zhang Hui ______ in this school since he moved here? A. has; studied B. have; studied C. has; studies D. did; study ◇（ ）3. The students ______ just ______ a wonderful discovery in the lab. A. have; make B. has; made C. have; made D. had; made ★ 拓展题（用适当形式填空） ★ 1. Lily ________ (read) three science books this month. She loves learning. ★ 2. Jam ________ (not finish) his homework yet. He is still working on it. ★ 3. How many experiments ________ they ________ (do) since last Monday? 考点二：被动语态（be + 过去分词）—— 一般现在/过去/将来被动 ⚠ 易错点：被动语态结构：be + 过去分词。一般现在时：is/are + done；一般过去时：was/were + done ⚠ 一般将来时：will be + done；含情态动词：can/must/should + be + done。by引出动作执行者（可省略） ▷ 基础题（选择题） ▷（ ）1. The new library ______ last year. It has many science books now. A. builds B. built C. was built D. is built ▷（ ）2. English ______ in most schools in China. A. teaches B. is taught C. are taught D. was taught ▷（ ）3. The experiment ______ by the students tomorrow afternoon. A. will do B. will be done C. is done D. was done ◇ 提升题（选择题） ◇（ ）1. The famous scientist's discoveries ______ by people all over the world. A. know B. knows C. are known D. is known ◇（ ）2. The old machine ______ in 1990. It doesn't work anymore. A. invents B. invented C. was invented D. is invented ◇（ ）3. All the homework must ______ carefully before the teacher checks it. A. do B. does C. be done D. is done ★ 拓展题（用适当形式填空） ★ 1. The Great Wall ________ (visit) by millions of tourists every year. ★ 2. This bridge ________ (build) ten years ago. It is still strong. ★ 3. The meeting ________ (hold) in the school hall next Friday. 考点三：动词不定式（to do）作宾语与目的状语 ⚠ 易错点：不定式作宾语：decide/hope/want/plan/learn/manage/agree/choose + to do ⚠ 不定式作目的状语：to + 动词原形（表示做某事的目的）。He went to the lab to do an experiment. 否定：not to do ▷ 基础题（选择题） ▷（ ）1. Chen Wu decided ______ a science club at school. A. start B. to start C. starting D. started ▷（ ）2. Lily went to the library ______ some information about space. A. find B. finding C. to find D. found ▷（ ）3. Jam hopes ______ a famous scientist in the future. A. become B. to become C. becoming D. became ◇ 提升题（选择题） ◇（ ）1. The students plan ______ an experiment about plants next week. A. do B. to do C. doing D. did ◇（ ）2. Zhou Ku is learning ______ a computer program for his project. A. write B. writing C. to write D. writes ◇（ ）3. The teacher asked the class ______ carefully during the experiment. A. watch B. watching C. to watch D. watched ★ 拓展题（用适当形式填空） ★ 1. Lily wants ________ (join) the school science club this term. ★ 2. They went to Jinan ________ (visit) the famous science museum. ★ 3. Jam agreed ________ (help) his classmates with their projects. 考点四：动名词（doing）作宾语 —— enjoy/practice/finish/keep/suggest/mind ⚠ 易错点：enjoy/like/love/practice/finish/keep/suggest/mind + doing（不是to do） ⚠ look forward to + doing（to是介词）；be interested in + doing；spend...doing；have fun doing ▷ 基础题（选择题） ▷（ ）1. Lily enjoys ______ science fiction novels in her free time. A. read B. to read C. reading D. reads ▷（ ）2. Have you finished ______ your homework yet? A. do B. to do C. doing D. done ▷（ ）3. Chen Wu practices ______ the piano every evening after dinner. A. play B. to play C. playing D. plays ◇ 提升题（选择题） ◇（ ）1. The students are looking forward to ______ the science museum next month. A. visit B. visiting C. to visit D. visited ◇（ ）2. Jam suggested ______ a survey about students' reading habits. A. do B. to do C. doing D. did ◇（ ）3. Zhang Hui spends two hours ______ English every day to improve her skills. A. practise B. practising C. to practise D. practised ★ 拓展题（用适当形式填空） ★ 1. Lily is interested in ________ (learn) about how machines work. ★ 2. They had great fun ________ (explore) the old cave near Kunming. ★ 3. Please keep ________ (try) even when things get difficult. 考点五：when/while/as 时间状语从句（主从时态搭配） ⚠ 易错点：when + 短暂动作/长动作均可；while + 长动作/进行时；as = 当……的同时（强调同步） ⚠ 主从句时态一致：过去+过去（进行时）；过去+过去时。When I arrived, he was reading. / While I was walking, it rained. ▷ 基础题（选择题） ▷（ ）1. ______ Lily was doing her science homework, the phone rang. A. When B. While C. As soon as D. After ▷（ ）2. When Chen Wu ______ the classroom, the teacher was already there. A. entered B. was entering C. enters D. has entered ▷（ ）3. ______ it started to rain, they were playing football outside. A. While B. When C. As soon as D. Before ◇ 提升题（选择题） ◇（ ）1. ______ the scientist was giving a speech, everyone listened carefully. A. When B. While C. As D. All of the above ◇（ ）2. Jam was reading a book ______ he suddenly found an interesting fact. A. while B. when C. as D. since ◇（ ）3. ______ she grows up, she wants to be a great inventor like her father. A. When B. While C. As D. Since ★ 拓展题（用适当形式填空） ★ 1. When the teacher came in, the students ________ (talk) loudly. ★ 2. ________ (while/when) I was walking in the park, I met an old friend. ★ 3. As the storm ________ (get) worse, they decided to go back home. 考点六：重点短语 —— find out / look up / come up with / carry out / work out ⚠ 易错点：find out = 查明/找出（真相/答案）；look up = 查阅（字典/资料）；come up with = 想出（主意/办法） ⚠ carry out = 执行/实施（实验/计划）；work out = 算出/解决（问题/答案）；try out = 试验/尝试 ▷ 基础题（选择题） ▷（ ）1. If you don't know a word, you can ______ it ______ in the dictionary. A. find; out B. look; up C. come; up with D. carry; out ▷（ ）2. The scientists will ______ an important experiment next week. A. find out B. look up C. carry out D. come up with ▷（ ）3. Jam ______ a great idea for the school science fair. A. found out B. looked up C. came up with D. carried out ◇ 提升题（选择题） ◇（ ）1. Can you help me ______ this maths problem? I can't get the answer. A. find out B. work out C. come up with D. look up ◇（ ）2. The police finally ______ who stole the school computer. A. looked up B. came up with C. found out D. carried out ◇（ ）3. Before we buy the new machine, we should ______ it ______ first. A. find; out B. try; out C. work; out D. look; up ★ 拓展题（用适当形式填空） ★ 1. The students are trying ________ (find) out why the plant grows so fast. ★ 2. Can you look ________ (up/for) the word in your dictionary, Lily? ★ 3. We need to work ________ (out) a plan for the science project. 考点七：形容词比较级与最高级（规则变化 + than / the + 最高级） ⚠ 易错点：规则变化：tall→taller→tallest；large→larger→largest（去e加r/st）；big→bigger→biggest（双写） ⚠ 辅音+y结尾：heavy→heavier→heaviest；多音节：more/most + adj.；修饰比较级：much/a lot/far/a little/even ▷ 基础题（选择题） ▷（ ）1. This experiment is ______ than the one we did last week. A. interesting B. more interesting C. most interesting D. the most interesting ▷（ ）2. Jam's idea is ______ of all. We should choose it. A. good B. better C. the best D. best ▷（ ）3. The blue whale is ______ animal on Earth. A. large B. larger C. the largest D. most large ◇ 提升题（选择题） ◇（ ）1. The more you practise, ______ your English will become. A. good B. better C. the better D. the best ◇（ ）2. This book is ______ than that one. I find it much easier to understand. A. thin B. thinner C. thinnest D. the thinnest ◇（ ）3. Chen Wu is one of ______ students in our class. He always gets top marks. A. smart B. smarter C. the smarter D. the smartest ★ 拓展题（用适当形式填空） ★ 1. The weather today is even ________ (cold) than yesterday. ★ 2. Lily is the ________ (careful) girl in her group. She never makes mistakes. ★ 3. This is by far ________ (exciting) game I have ever played. 考点八：so...that / such...that / too...to 结构 ⚠ 易错点：so + adj./adv. + that...（so interesting that...）；such + (a/an) + adj. + n. + that...（such an interesting book that...） ⚠ too + adj./adv. + to do（太……而不能……）= so...that + 否定句。He is too young to drive. = He is so young that he can't drive. ▷ 基础题（选择题） ▷（ ）1. The movie was ______ interesting ______ everyone wanted to watch it again. A. too; to B. so; that C. such; that D. enough; to ▷（ ）2. He is ______ young ______ go to school by himself. A. so; that B. such; that C. too; to D. enough; to ▷（ ）3. It was ______ a boring lecture ______ many students fell asleep. A. so; that B. such; that C. too; to D. very; that ◇ 提升题（选择题） ◇（ ）1. The box is ______ heavy for me ______ carry. Can you help me? A. so; that B. such; that C. too; to D. enough; to ◇（ ）2. She spoke ______ fast ______ I could hardly understand her. A. such; that B. so; that C. too; to D. very; that ◇（ ）3. The question was ______ difficult ______ none of us could answer it. A. too; to B. enough; to C. so; that D. such; that ★ 拓展题（用适当形式填空） ★ 1. The water is too hot ________ (drink) right now. Wait a minute. ★ 2. It was ________ (such/so) a wonderful day that we went for a long walk. ★ 3. The book is ________ (interesting) enough for a ten-year-old to read. 考点九：核心词汇辨析 curious/curiosity/serious/seriously/solve/solution/discover/discovery ⚠ 易错点：curious（adj.好奇的）→curiosity（n.好奇心）；be curious about（对……好奇）；out of curiosity（出于好奇） ⚠ serious（adj.严重的/认真的）→seriously（adv.认真地/严重地）；solve（v.解决）→solution（n.解决方案） ⚠ discover（v.发现）→discovery（n.发现）→discoverer（n.发现者）；invent（发明）→invention→inventor ▷ 基础题（选择题） ▷（ ）1. Jam is very ______ about how airplanes fly. He asks many questions. A. serious B. curious C. careful D. wonderful ▷（ ）2. Scientists have made an important ______ about black holes. A. invent B. discover C. discovery D. invention ▷（ ）3. We need to ______ this problem before the experiment starts. A. solution B. solve C. serious D. save ◇ 提升题（选择题） ◇（ ）1. The little boy looked at the strange machine with ______. A. curious B. curiosity C. seriously D. careful ◇（ ）2. Chen Wu is ______ ill and has to stay in hospital for a few days. A. serious B. seriously C. curiosity D. careful ◇（ ）3. Edison was a great ______ who ______ many useful things. A. invention; invented B. inventor; invented C. inventor; invention D. invent; invented ★ 拓展题（用适当形式填空） ★ 1. The students are ________ (curiosity) to know what the experiment will show. ★ 2. We should listen ________ (serious) to the teacher's instructions. ★ 3. Who ________ (discovery) America in 1492? We all know the answer. 参考答案与详细解析 考点一：现在完成时（have/has done） 【基础题】 1. B Lily三单→has finished。Lily已完成她的植物科学项目。already用于句中。 2. A you→Have you ever...? ever用于疑问句。你参观过昆明的科学博物馆吗？ 3. C hasn't...yet。yet用于否定句句末。Jam还没找到答案。 【提升题】 1. B Chen Wu三单→has never seen。今天之前从未见过如此奇怪的实验。 2. A Zhang Hui三单→has studied。since提示现在完成时。学多久了？ 3. C The students复数→have just made。学生们刚在实验室有了奇妙发现。 【拓展题】 1. has read Lily三单→has read。Lily这个月读了三本科学书。this month提示完成时。 2. hasn't finished Jam三单→hasn't finished。Jam还没完成作业。yet提示。 3. have; done they复数→have done。自上周一以来做了多少实验？ 考点二：被动语态（be + 过去分词） 【基础题】 1. C last year→过去时→was built。新图书馆去年建成。 2. B English三单+被动→is taught。英语在中国大多数学校被教授。 3. B tomorrow→将来时→will be done。实验明天下午由学生做。 【提升题】 1. C discoveries复数→are known。被发现用被动。全世界都知道他的发现。 2. C in 1990→过去时→was built/was invented。这台旧机器1990年发明。 3. C must be done。情态动词被动。作业必须在老师检查前认真完成。 【拓展题】 1. is visited 长城每年被数百万游客参观。一般现在被动。 2. was built 这座桥十年前建造。过去时被动。 3. will be held 会议下周五举行。将来时被动。 考点三：动词不定式（to do）作宾语与目的状语 【基础题】 1. B decide to do。Chen Wu决定在学校创办科学俱乐部。 2. C to find（不定式表目的）。Lily去图书馆是为了找关于太空的信息。 3. B hope to become。Jam希望将来成为著名科学家。 【提升题】 1. B plan to do。学生们计划下周做植物实验。 2. C learn to do。Zhou Ku正在学写电脑程序。 3. C ask sb to do。老师让全班在实验中仔细观看。 【拓展题】 1. to join want to do。Lily想加入学校科学俱乐部。 2. to visit 不定式表目的。他们去济南参观科学博物馆。 3. to help agree to do。Jam同意帮助同学做项目。 考点四：动名词（doing）作宾语 【基础题】 1. C enjoy doing。Lily喜欢读科幻小说。不是enjoy to read。 2. C finish doing。完成作业用doing。你做完作业了吗？ 3. C practice doing。Chen Wu每天练习弹钢琴。 【提升题】 1. B look forward to doing（to是介词）。学生们期待下月参观博物馆。 2. C suggest doing。Jam建议做关于阅读习惯的调查。 3. B spend...doing。Zhang Hui每天花两小时练英语。 【拓展题】 1. learning be interested in doing。Lily对学习机器原理感兴趣。 2. exploring have fun doing。他们在昆明附近的山洞探险很开心。 3. trying keep doing。即使困难也要继续尝试。 考点五：when/while/as 时间状语从句 【基础题】 1. B While + 进行时长动作。当Lily做作业时电话响了。 2. A When + 短暂动作entered。Chen Wu进教室时发现老师已在。 3. B When + 短暂动作started。开始下雨时他们正在外面踢球。 【提升题】 1. D When/While/As均可接进行时。科学家演讲时大家都在认真听。 2. B was reading（长动）+ when（突然）→when表示"正在……突然"。 3. C As = 随着（强调同步变化）。随着她长大想成为伟大的发明家。 【拓展题】 1. were talking When老师进来时学生们正在大声说话。过去进行时。 2. While While I was walking。当我正在公园散步时遇到了老朋友。 3. was getting As the storm was getting worse。随着暴风雨加剧他们决定回家。 考点六：重点短语 find out / look up / come up with / carry out / work out 【基础题】 1. B look up = 查阅（字典）。不认识单词可以查字典。代词放中间：look it up。 2. C carry out = 执行/实施。科学家下周将执行重要实验。 3. C come up with = 想出（主意）。Jam想出了科学展的好点子。 【提升题】 1. B work out = 算出/解决。帮我解这道数学题好吗？ 2. C find out = 查明。警察最终查明谁偷了学校电脑。 3. B try out = 试验。买新机器前应先试用。 【拓展题】 1. to find try to do。学生们试图查明植物为何长得这么快。 2. up look up the word。请在字典里查这个词。代词放中间。 3. out work out a plan。我们需要制定出科学项目的计划。 考点七：形容词比较级与最高级 【基础题】 1. B than提示比较级。多音节interesting→more interesting。 2. C of all提示最高级。good→the best。Jam的想法是所有人中最好的。 3. C 最高级。蓝鲸是地球上最大的动物。the largest。 【提升题】 1. C the more...the better（越……越……）。练习越多英语越好。 2. B than提示比较级。thin→thinner（双写n）。这本书更薄更容易理解。 3. D one of the + 最高级。Chen Wu是班上最聪明的学生之一。 【拓展题】 1. colder even + 比较级。今天比昨天更冷了。 2. most careful the most careful。Lily是组里最细心的女孩。 3. the most exciting by far + 最高级。这是我玩过最刺激的游戏。 考点八：so...that / such...that / too...to 【基础题】 1. B so + adj. + that...。电影如此有趣大家都想再看一遍。 2. C too + adj. + to do。他太小不能自己上学。 3. B such + a + adj. + n. + that...。如此无聊的讲座以至于许多学生睡着了。 【提升题】 1. C too + heavy + to carry。箱子太重我搬不动。 2. B so + fast + that...。她说得太快我几乎听不懂。 3. C so + difficult + that...。问题太难了没人能回答。 【拓展题】 1. to drink too...to...。水太烫不能马上喝。 2. such such a + adj. + n.。如此美好的一天我们去散步了。 3. interesting enough的用法：adj./adv. + enough + to do。这本书足够有趣给十岁孩子读。 考点九：核心词汇 curious/curiosity/serious/seriously/solve/solution/discover/discovery 【基础题】 1. B be curious about。Jam对飞机如何飞行很好奇。 2. C make a discovery（n.发现）。科学家对黑洞有了重要发现。 3. B solve the problem（v.解决）。我们需要在实验前解决这个问题。 【提升题】 1. B with curiosity（n.好奇心）。小男孩好奇地看着那台奇怪的机器。 2. B seriously ill（adv.严重地）。Chen Wu病得重需要住院几天。 3. B inventor（发明家）+ invented（发明v.）。爱迪生发明了许多有用的东西。 【拓展题】 1. curious be curious to know。学生们好奇地想知道实验结果。 2. seriously listen seriously（adv.认真地）。我们应该认真听老师指导。 3. discovered Who discovered...? 1492年谁发现了美洲？用过去式。 — — 学科网（北京）股份有限公司 $