Unit 4 Then and Now 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

Unit 4 Then and Now · 单元重点易错专项训练 沪教版（五四学制）八年级上册 Unit 4 Then and Now 单元重点易错专项训练 （9大考点 · 基础+提升+拓展 三层训练 · 附详细解析） ★ 考点一：used to do 与 be used to doing 辨析 ★ ⚠ 易错速记：① used to do = 过去常常做某事（现在不做了）：I used to live in Kunming. 否定：didn't use to（不用usedn't）；疑问：Did...use to...?；② be used to doing = 习惯于做某事（to是介词+doing）：I am used to getting up early.；③ be used to do = 被用来做（被动）：Wood is used to make paper.；④ 易错：used to + 原形（× used to doing）；be used to + doing不是do；三种用法to的词性完全不同 ▷ 基础题（选择题） ▷（ ）1. Jam used to ______ in Jinan, but now he lives in Kunming. A. live B. living C. lived D. lives ▷（ ）2. Lily is used to ______ up early every morning. A. get B. getting C. got D. gets ▷（ ）3. Wood is used to ______ paper. A. make B. making C. made D. makes ◇ 提升题（选择题） ◇（ ）1. Chen Wu didn't use to ______ spicy food, but now he loves it. A. like B. liking C. liked D. likes ◇（ ）2. They ______ living in the countryside now. A. used to B. are used to C. use to D. were used to ◇（ ）3. — Did he use to ______ glasses? — Yes, he did. A. wear B. wearing C. wore D. worn ★ 拓展题（用适当形式填空） ★（ ）1. She used to ______ (be) afraid of the dark. ★（ ）2. He is used to ______ (read) before bed. ★（ ）3. Computers are used to ______ (help) us study. ★ 考点二：现在完成时（have/has + done）与 for / since 连用 ★ ⚠ 易错速记：① 结构：have/has + 过去分词；I have lived here for 5 years. She has gone to Beijing.；② for + 时间段（for two years）；since + 时间点（since 2020/since last year/since he was young）；③ 易错：since后接时间点不是段（× since two years → √ for two years / √ since two years ago）；join/leave等短暂动词不能与for/since连用（× he has joined for 3 years → √ he has been in...for 3 years）；④ gone to（去了未回）vs been to（去过已回） ▷ 基础题（选择题） ▷（ ）1. Lily has ______ in Kunming for ten years. A. lived B. live C. living D. lives ▷（ ）2. Chen Wu has learned English ______ 2020. A. for B. since C. in D. at ▷（ ）3. Jam has ______ to Jinan three times. A. gone B. been C. went D. go ◇ 提升题（选择题） ◇（ ）1. They have ______ the club for two years. A. joined B. been in C. join D. leave ◇（ ）2. Zhang Hui has ______ his homework yet. A. finished B. hasn't finished C. didn't finish D. doesn't finish ◇（ ）3. — How long have you lived here? — ______ 2019. A. For B. Since C. In D. From ★ 拓展题（用适当形式填空） ★（ ）1. She has ______ (work) in this school since 2018. ★（ ）2. He has been to Beijing ______ (two) this year. ★（ ）3. They ______ (not see) each other for a long time. ★ 考点三：现在完成时 vs 一般过去时（时间状语辨析） ★ ⚠ 易错速记：① 现在完成时：already/yet/just/ever/never/recently/so far/for/since；强调与现在的联系；② 一般过去时：yesterday/last week/...ago/in 2020/just now；强调过去某时；③ 易错：just（完成时）≠ just now（过去时）；today this week可与两者连用（看语境）；④ 疑问：Have you ever...? Yes, I have. / No, I haven't.；Did you...? Yes, I did. ▷ 基础题（选择题） ▷（ ）1. Jam has ______ finished his homework. A. just B. just now C. yesterday D. last night ▷（ ）2. Lily went to the museum ______. A. just B. just now C. already D. yet ▷（ ）3. Chen Wu ______ the book last week. A. has read B. reads C. read D. is reading ◇ 提升题（选择题） ◇（ ）1. — Have you ever ______ to Kunming? — Yes, I went there in 2022. A. been B. gone C. been going D. go ◇（ ）2. I ______ this movie already. It's great. A. saw B. have seen C. see D. am seeing ◇（ ）3. She ______ in Jinan since she was a child. A. lived B. has lived C. lives D. is living ★ 拓展题（用适当形式填空） ★（ ）1. He ______ (buy) the book two days ago. ★（ ）2. I have ______ (know) him for five years. ★（ ）3. ______ (do) you ever visit the Great Wall? ★ 考点四：被动语态进阶（一般过去时被动 / 情态动词被动） ★ ⚠ 易错速记：① 一般过去时被动：was/were + done；The letter was written by Chen Wu.；② 情态动词被动：can/must/should + be + done；The room must be cleaned.；③ 双宾语两种被动：He gave me a book. → I was given a book. / A book was given to me.；④ 易错：被动遗漏be（× The work done → √ The work was done）；make/let/see + sb + do → 被动加to（was made to go）；⑤ 不及物动词无被动（happen/take place） ▷ 基础题（选择题） ▷（ ）1. The bridge ______ last year. A. built B. was built C. is built D. builds ▷（ ）2. The room must ______ every day. A. clean B. be cleaned C. is cleaned D. was cleaned ▷（ ）3. The book ______ by millions of people. A. reads B. is read C. was read D. read ◇ 提升题（选择题） ◇（ ）1. He was made ______ extra homework by the teacher. A. do B. to do C. doing D. did ◇（ ）2. The letter ______ by Lily yesterday. A. writes B. wrote C. was written D. is written ◇（ ）3. The work ______ finished on time yesterday. A. can be B. could be C. was D. is ★ 拓展题（用适当形式填空） ★（ ）1. The house ______ (build) in 2020. ★（ ）2. The window ______ (break) by the wind last night. ★（ ）3. The book should ______ (return) to the library on time. ★ 考点五：比较级与最高级进阶（the+最高级 / 比较级叠加 / much修饰） ★ ⚠ 易错速记：① the + 最高级 + 范围：the tallest in the class；② 比较级叠加：more and more beautiful；less and less；③ much/a little/far/even + 比较级：much better；④ 易错：one of the + 最高级 + 复数名词（× one of the tallest student → √ one of the tallest students）；the more...the more...两个the都不可省；⑤ 不规则：good→better→best; bad→worse→worst; many→more→most; little→less→least ▷ 基础题（选择题） ▷（ ）1. Jam is ______ student in our class. A. tall B. taller C. the tallest D. tallest ▷（ ）2. The more you read, ______ you will be. A. the more knowledgeable B. more knowledgeable C. the most knowledgeable D. most knowledgeable ▷（ ）3. Kunming is ______ than Jinan in winter. A. much warmer B. very warmer C. more warmer D. most warm ◇ 提升题（选择题） ◇（ ）1. She is one of ______ singers in China. A. the most popular B. most popular C. more popular D. popular ◇（ ）2. English is becoming ______ and ______ important. A. more; more B. much; much C. the; the D. less; less ◇（ ）3. The movie is ______ than I expected. A. far interesting B. far more interesting C. very interesting D. more far interesting ★ 拓展题（用适当形式填空） ★（ ）1. He is ______ (good) at math than his brother. ★（ ）2. This is the ______ (exciting) game I have ever watched. ★（ ）3. The ______ (hard) you work, the ______ (lucky) you get. ★ 考点六：核心短语辨析（change...into / in the past / deal with / instead of） ★ ⚠ 易错速记：① change...into... 把...变成...：The city has changed a lot. / change water into ice；② in the past = 在过去（常与一般过去时连用）：In the past, people wrote letters.；③ deal with = 处理/应对：How do you deal with stress? = cope with；④ instead of + doing/noun（代替/而不是）：instead of going = rather than go；⑤ 易错：in the past与现在完成时搭配时用in the past few years（≠ in the past单独）；deal with后接how不接what ▷ 基础题（选择题） ▷（ ）1. In the past, people ______ letters to communicate. A. write B. wrote C. have written D. are writing ▷（ ）2. He went to school ______ taking the bus. A. instead B. instead of C. rather D. without ▷（ ）3. Water can be changed ______ ice when it's cold. A. into B. to C. in D. on ◇ 提升题（选择题） ◇（ ）1. — How do you ______ with pressure? — I talk to friends. A. deal B. do C. make D. take ◇（ ）2. In the past few years, great changes ______ place. A. took B. have taken C. take D. are taking ◇（ ）3. She chose to walk ______ take a taxi. A. instead B. instead of C. rather than D. both B and C ★ 拓展题（用适当形式填空） ★（ ）1. In the past, there ______ (be) no internet at all. ★（ ）2. He deals with problems ______ (careful) every day. ★（ ）3. We should change our habits ______ (improve) our life. ★ 考点七：when / while / as 时间状语从句辨析 ★ ⚠ 易错速记：① when + 短暂/延续动作均可：When I arrived, he was leaving. / When I was young...；② while + 延续性动作（进行时态）：While I was reading, the phone rang. 常与过去进行时搭配；③ as = when（正当/随着）：As time goes by... 随着时间流逝；④ 易错：when可接瞬间动词，while不可（× while he came → √ when he came）；while前后动作同时持续；⑤ 过去进行时：was/were + doing（was reading when...） ▷ 基础题（选择题） ▷（ ）1. ______ I was walking home, it started to rain. A. When B. While C. As soon as D. After ▷（ ）2. Jam was reading ______ his sister was watching TV. A. when B. while C. as D. if ▷（ ）3. I was having dinner ______ the phone rang. A. while B. as C. when D. since ◇ 提升题（选择题） ◇（ ）1. ______ time goes by, things get better. A. When B. While C. As D. Since ◇（ ）2. Chen Wu was sleeping ______ someone knocked at the door. A. while B. as C. when D. since ◇（ ）3. ______ she was cooking, the power went out. A. When B. While C. As soon as D. Before ★ 拓展题（用适当形式填空） ★（ ）1. I saw an old friend ______ (when/while) I was shopping. ★（ ）2. While my mother ______ (cook), I did my homework. ★（ ）3. As the years went ______ (by/away), he grew wiser. ★ 考点八：used to 否定/疑问 + 反义疑问句 + 对比结构 ★ ⚠ 易错速记：① used to否定：didn't use to（最常用）/ used not to（正式）；② 疑问：Did...use to...?（最常用）/ Used...to...?（正式）；③ 反义疑问：He used to live here, didn't he?（用didn't不用usedn't）；④ 对比结构：used to...but now...（过去...但现在...）；There used to be...（过去曾有...）；⑤ 易错：There used to be（√）/ There was used to be（×）；反义疑问用didn't不用usedn't ▷ 基础题（选择题） ▷（ ）1. There ______ a small river near our school. A. used to be B. was used to be C. used to have D. was used to have ▷（ ）2. He used to smoke, ______ he? A. used B. usedn't C. didn't D. did ▷（ ）3. ______ you use to play football after school? A. Do B. Did C. Were D. Are ◇ 提升题（选择题） ◇（ ）1. Lily didn't use to like math, ______ she? A. did B. didn't C. used D. wasn't ◇（ ）2. He used to be thin, but now he is ______. A. thinner B. thin C. heavy D. heavier ◇（ ）3. — Used he to wear glasses? — Yes, he ______. A. did B. used C. was D. does ★ 拓展题（用适当形式填空） ★（ ）1. There used to ______ (be) a cinema in this town. ★（ ）2. She didn't use to ______ (like) spicy food. ★（ ）3. He used to get up late, ______ (反义疑问) he? ★ 考点九：综合句型与交际用语（现在完成时+被动+书信/变化描述） ★ ⚠ 易错速记：① 描述变化：...has changed a lot. / Compared to the past... / Great changes have taken place.；② 书信格式：Dear... / Yours sincerely, / I have lived here since... / I am writing to tell you...；③ 易错：changes作主语用have（× change has taken place → √ changes have taken place）；④ 交际：What was it like before? / It used to be... / It has become... / I can't believe how much it has changed.；⑤ since引导完成时 + 一般过去时混合 ▷ 基础题（选择题） ▷（ ）1. Great changes ______ place in Kunming in recent years. A. took B. have taken C. take D. are taking ▷（ ）2. ______ was it like in Jinan ten years ago? A. How B. What C. Which D. Why ▷（ ）3. I have lived here ______ I was born. A. for B. since C. in D. from ◇ 提升题（选择题） ◇（ ）1. Compared ______ the past, life is much better now. A. to B. with C. in D. both A and B ◇（ ）2. I am writing to tell you about the changes ______ have taken place. A. which B. what C. who D. where ◇（ ）3. — I haven't seen you for ages! — Yes, I have been busy ______ I moved. A. since B. for C. when D. after ★ 拓展题（用适当形式填空） ★（ ）1. The city has changed a lot ______ (in/for) the past ten years. ★（ ）2. I have ______ (live) in this city since 2015. ★（ ）3. Compared to the past, transport is much ______ (convenient) now. 📖 参考答案与详细解析 ◎考点一：used to do 与 be used to doing 辨析 【基础题】 1. Jam used to ______ in Jinan. 答案：A。解析：used to + 原形live。过去住在济南，现在不住了。 2. Lily is used to ______ up early. 答案：B。解析：be used to + doing。习惯于早起。to是介词。 3. Wood is used to ______ paper. 答案：A。解析：be used to do = 被用来做。木材被用来造纸。 【提升题】 1. Chen Wu didn't use to ______ spicy food. 答案：A。解析：didn't use to + 原形like。过去不喜欢辣。 2. They ______ living in the countryside. 答案：B。解析：be used to doing = 习惯于。他们习惯了乡村生活。 3. Did he use to ______ glasses? 答案：A。解析：Did...use to + 原形wear。过去戴眼镜吗？ 【拓展题】 1. be. 答案：be。解析：used to + 原形be。她过去怕黑。 2. reading. 答案：reading。解析：be used to + doing。他习惯睡前阅读。 3. help. 答案：help。解析：be used to do = 被用来做。电脑被用来帮助学习。 ◎考点二：现在完成时（have/has + done）与 for / since 连用 【基础题】 1. Lily has ______ in Kunming for ten years. 答案：A。解析：for ten years→现在完成时。live→lived。延续性动词。 2. Chen Wu has learned English ______ 2020. 答案：B。解析：since + 时间点2020。since提示现在完成时。 3. Jam has ______ to Jinan three times. 答案：B。解析：has been to = 去过（已回）。three times提示经历过。 【提升题】 1. They have ______ the club for two years. 答案：B。解析：for two years需延续性。join是短暂动词→been in。 2. Zhang Hui has ______ his homework yet. 答案：B。解析：yet用于否定/疑问。现在完成时否定hasn't finished。 3. How long have you lived here? — ______ 2019. 答案：B。解析：since + 时间点2019。从2019年至今。 【拓展题】 1. worked. 答案：worked。解析：since 2018→现在完成时。has worked。 2. twice. 答案：twice。解析：two→twice。今年去过北京两次。 3. haven't seen. 答案：haven't seen。解析：for a long time→现在完成时。他们很久没见面了。 ◎考点三：现在完成时 vs 一般过去时（时间状语辨析） 【基础题】 1. Jam has ______ finished his homework. 答案：A。解析：has...finished→完成时。just用于完成时。 2. Lily went to the museum ______. 答案：B。解析：went→过去时。just now = 刚才，用于过去时。 3. Chen Wu ______ the book last week. 答案：C。解析：last week→过去时。read过去式仍是read（发音不同）。 【提升题】 1. Have you ever ______ to Kunming? 答案：A。解析：ever用于完成时。have been to = 去过。 2. I ______ this movie already. 答案：B。解析：already→完成时。have seen。我已经看过这部电影。 3. She ______ in Jinan since she was a child. 答案：B。解析：since提示完成时。has lived。从童年至今住在济南。 【拓展题】 1. bought. 答案：bought。解析：two days ago→过去时。buy→bought。 2. known. 答案：known。解析：for five years→完成时。know→known。 3. Have. 答案：Have。解析：ever→完成时。Have you ever...? 你曾经...吗？ ◎考点四：被动语态进阶（一般过去时被动 / 情态动词被动） 【基础题】 1. The bridge ______ last year. 答案：B。解析：last year→过去时被动。was built。 2. The room must ______ every day. 答案：B。解析：情态动词被动must + be + done。must be cleaned。 3. The book ______ by millions. 答案：B。解析：书被数百万人阅读→被动。is read（一般现在时被动）。 【提升题】 1. He was made ______ extra homework. 答案：B。解析：make sb do→被动加to。was made to do。 2. The letter ______ by Lily yesterday. 答案：C。解析：yesterday→过去时被动。was written。 3. The work ______ finished on time. 答案：C。解析：yesterday→过去时。work不可数→was finished。 【拓展题】 1. was built. 答案：was built。解析：in 2020→过去时被动。房子被建于2020年。 2. was broken. 答案：was broken。解析：last night→过去时被动。窗户被风打破。 3. be returned. 答案：be returned。解析：情态动词被动should + be + done。书应被按时归还。 ◎考点五：比较级与最高级进阶 【基础题】 1. Jam is ______ student in our class. 答案：C。解析：in our class提示最高级。tall→the tallest。 2. The more you read, ______ you will be. 答案：A。解析：the + 比较级..., the + 比较级...。the more knowledgeable。 3. Kunming is ______ than Jinan in winter. 答案：A。解析：much修饰比较级。much warmer。 【提升题】 1. She is one of ______ singers. 答案：A。解析：one of the + 最高级 + 复数。the most popular singers。 2. English is becoming ______ and ______ important. 答案：A。解析：more and more + 原级。越来越重要。 3. The movie is ______ than I expected. 答案：B。解析：far修饰比较级。far more interesting。 【拓展题】 1. better. 答案：better。解析：than提示比较级。good→better。 2. most exciting. 答案：most exciting。解析：I have ever watched提示最高级。多音节加most。 3. harder; luckier. 答案：harder; luckier。解析：the harder...the luckier。越努力越幸运。 ◎考点六：核心短语辨析（change...into / in the past / deal with / instead of） 【基础题】 1. In the past, people ______ letters. 答案：B。解析：In the past→过去时。write→wrote。 2. He went to school ______ taking the bus. 答案：B。解析：instead of + doing。代替坐公交。 3. Water can be changed ______ ice. 答案：A。解析：change...into... = 把...变成...。 【提升题】 1. How do you ______ with pressure? 答案：A。解析：deal with = 处理/应对。How提问用deal with。 2. In the past few years, changes ______ place. 答案：B。解析：in the past few years→完成时。have taken place。 3. She chose to walk ______ take a taxi. 答案：C。解析：. 【拓展题】 1. was. 答案：was。解析：In the past→过去时。there be句型。no internet→was。 2. carefully. 答案：carefully。解析：修饰动词deals→副词。careful→carefully。 3. to improve. 答案：to improve。解析：change...to do。改变习惯来改善生活。不定式表目的。 ◎考点七：when / while / as 时间状语从句辨析 【基础题】 1. ______ I was walking home, it started to rain. 答案：B。解析：was walking延续性→while。当...的时候。 2. Jam was reading ______ his sister was watching TV. 答案：B。解析：两个同时持续动作→while。 3. I was having dinner ______ the phone rang. 答案：C。解析：rang是瞬间动作→when。正在吃饭时电话响了。 【提升题】 1. ______ time goes by, things get better. 答案：C。解析：As time goes by = 随着时间流逝。固定表达。 2. Chen Wu was sleeping ______ someone knocked. 答案：C。解析：knocked瞬间动作→when。正在睡觉有人敲门。 3. ______ she was cooking, the power went out. 答案：B。解析：was cooking延续性→while。While引导进行时。 【拓展题】 1. when. 答案：when。解析：was shopping延续性。当我购物时看见老朋友。 2. was cooking. 答案：was cooking。解析：While + 过去进行时。妈妈做饭时我做业。 3. by. 答案：by。解析：As time goes by = 随着时间流逝。他变得更聪明。 ◎考点八：used to 否定/疑问 + 反义疑问句 + 对比结构 【基础题】 1. There ______ a small river near our school. 答案：A。解析：There used to be = 过去曾有。固定句型。 2. He used to smoke, ______ he? 答案：C。解析：used to→反义用didn't。didn't he? 3. ______ you use to play football? 答案：B。解析：Did...use to...? 疑问句。你过去常踢球吗？ 【提升题】 1. Lily didn't use to like math, ______ she? 答案：A。解析：否定句反义用肯定。didn't→did she? 2. He used to be thin, but now he is ______. 答案：D。解析：but now对比。过去瘦现在胖→heavier。 3. Used he to wear glasses? — Yes, he ______. 答案：B。解析：Used...to...?正式用法。肯定回答用used。 【拓展题】 1. be. 答案：be。解析：There used to be。这个镇上过去有家电影院。 2. like. 答案：like。解析：didn't use to + 原形like。她过去不喜欢辣食。 3. didn't. 答案：didn't。解析：used to反义用didn't。He used to..., didn't he? ◎考点九：综合句型与交际用语 【基础题】 1. Great changes ______ place in Kunming. 答案：B。解析：in recent years→完成时。changes复数→have taken place。 2. ______ was it like in Jinan ten years ago? 答案：B。解析：What was it like? = ...是什么样的？问情况。 3. I have lived here ______ I was born. 答案：B。解析：I was born时间点→since。自从出生就住这里。 【提升题】 1. Compared ______ the past, life is better. 答案：D。解析：compare to / compare with均可。与过去相比。 2. the changes ______ have taken place. 答案：A。解析：先行词changes是物→which/that。定语从句。 3. I have been busy ______ I moved. 答案：A。解析：since + 过去时从句。自从搬家后一直忙。 【拓展题】 1. in. 答案：in。解析：in the past ten years = 过去十年里。与完成时连用。 2. lived. 答案：lived。解析：since 2015→现在完成时。have lived。 3. more convenient. 答案：more convenient。解析：much修饰比较级。convenient→more convenient。 — 练习结束，愿你珍惜当下，拥抱变化，学有所成！ — 第 页 学科网（北京）股份有限公司 $