2023-2024年小学英语六年级上册知识讲解考点精练 Unit 4 Then and now（译林版三起含答案）.docx

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1、Unit 4 Then and now知识点讲解与考题精练（有答案）【语音】字母组合“er”的发音My mother is a teacher.我的妈妈是个老师She works hard every day.她每天都在努力工作My cousin is a worker.我的表妹是个工人Now shes on holiday.现在她在度假令 字母组合er在非重点音节中，尤其是作为后缀时，常发短元音/。/,如：teacher, worker令 拓展：字母组合er在重读闭音节中，常发长元音/o:/,如：term, her试一试从下列每组单词中选出画线部分读音不同的一项。（）1.A. paperB.

2、summerC.termD. worker【知识点11 can-could表达某人过去会做某事Six years ago, Mike could read and draw, but he could not write.六年前，迈克会读书和画画，但是他不会写字。解析： could是can的过去式，意为“能够，会,可以”，表示某人具有做某事的能力； 其否定形式为couldnt =could not;两者没有人称和数的变化，其后都要接动词原形。即can/could +动词原形肯定句型结构：主语+ COUld +动词原形（+其他）.否定句型结构：主语+ couldnt +动词原形（+其他）.一般疑

3、问句结构：Could +主语+动词原形（+其他）？肯定回答：Yes,主语+could./否定回答：No,主语+couldnt拓展：could也可以表示委婉、客气地提出问题或陈述看法，此时可以与can互换使用，但 could的语气较can委婉，两者没有时态上的区别。例如： When I was five years old, I could sing, but I couldnt dance.【考题精练1】一、单项选择。()1. Mikes father read newspapers twenty years ago.A. canB. cantC. could()2. Lily could n

4、ot the piano five years ago.易错题 1A. playB. playsC. playing二、用can或could的正确形式填空。1. He swim and I sing.2. She read and draw, but she write five years ago.3. LiuTao play basketball when (当) he was a child.4. I use the mobile phone until(直至U) I was fifteen years old.5. What could you do three years ago?

5、We ride a bike to school.6. the boy two years ago?【知识点2】重点词的用法use动词，意为“使用”He used the telephone at home and in the office to call people.他用家里和办公室的电话机给人打电话。(1)考点：use sth. to do sth.用做=do sth. with sth.例如：We use water to wash hands.我们用水洗手。二We wash hands with water.(2)【拓展】use和with都有用的意思，use是动词，with是介词，

6、用法不同“和”with的用法：“长着”V“拥有”I played football with my brother last Sunday.The boy with a big nose is my brother.I have a new house with a big garden.“用 Make a sentence with “egg”.*注：句中有谓语动词时，选介词“with”表示用，句中无谓语动词时，选动词“use” o【小试牛刀1】 Mr White(use) the telephone(call) people. My father(use) a mobile phone(c

7、all)(I) just now.() Who can make a sentence(use/with) this new word? They(use/with) paper to make a T-shirt.1. write sb. a letter 写信给某人Mr Brown wrote letters to his friends.布朗先生给他的朋友们写信。(1)考点：write sb. a letter写信给某人=write (a letter) to sb. 例如：I often write my e-friends a letter.我经常写信给我的网友。=1 often w

8、rite a letter to my e-friends.*注：write的过去式是wrote【小试牛刀2】翻译：我的妈妈十年前写信给她的朋友。Mr Green is writing a letter his friend the office.C.to; inI a letter at home.C. wroteA.to; atB.for; inWhat did you do yesterday?A.writedB.am writing某国人的名词复数The Americans invented the aeroplane.美国人发明 了 飞机。The British invented t

9、he train.英国人发明了 火车。一起来观察总结吧：Chinese-Chinese 中国人Japanese-Japanese 日本人Swiss-Swiss 瑞士人EnglishmanEnglishmen 英国人FrenchmanFrenchmen 法国人AmericanAmericans 美国人GermanGermans 德 国 人*总结： 中日不变，英法变，其他国人加s【小试牛刀3】There are four and two in the group.A. Japanese, Germen B. Japaneses, Germen C. Japanese, Germans D. Jap

10、anese, GermanWho invented the train? .A.ChineseB. JapaneseC.BritishD.Americans【知识点3比较：一般过去时VS一般现在时Twenty years ago, Mrs Brown made friends at school.二十年前，布朗夫人在学校交朋友。Now she has e-friends from all over the word.现在她的网友遍布全世界。一般现在时.定义：指经常性或习惯性的动作或存在的状态 若指经常性、习惯性的动作，谓语动词用行为动词; 若指经常性、习惯性的状态，谓语动词用be动词。“动词原

11、形/三单1 .谓语动词，、am/is/are2 . 标志词：every day, always, usually, often, sometimes, seldom（彳艮少），never（从不）3 .动词三单变化规则：(1) 一般在动词尾加 s,如：looklooks, readreads;(2)以 s, x, sh, ch 以及 o 结尾的动词加 es,如：catch-catches, go-goes, dodoes;(3)以“辅音字母+y”结尾的动词，变y为i,再加es,如：fly-flies;(4)特例：havehas注：当主语是he, she, it以及单数，不可数名词时用三单。肯定句

12、：I am at home.I like cats.否定句：I am at home.I donMike cats.一般疑问句：-Are you at home?-Do you like cats?-Yes, I am./No, Im not.-Yes, I do./No, I dont.特殊疑问句：Where are you?What do you like?5.句型转化He likes lions.He doesn like lions.-Does he like lions?-Yes, he does./No, he doesnt.He likes lions.一般过去时1 .定义：指发

13、生在过去的动作或过去存在的状态。指发生在过去的动作或事情，谓语动词用行为动词的过去式；指过去存在的状态，谓语动词用be动词的过去式was, were。”规则的动词加ed,不规则的特殊记2 .谓语动词vwas/were3 . 标志词：yesterday, yesterday morning/afternoon/eveninglast week/month/year/term 上一周/日/去年/上个学期this morning/afternoon/eveningjust now(刚才)；a week ago(一周前);long long ago(很久以前)one day(一天)；the day b

14、efore yesterday(前天)4 .动词过去时式的变化规则(1) 一般直接在词尾加-ed。(2)以不发音的e结尾的动词在词尾加-d。(3)以辅音字母加y结尾的动词，变y为i,再加-ed。(4)以一个元音字母加一个辅音字母结尾的重读闭音节动词，先双写这个辅音字母，再加-ed。(5)不规则动词过去式的变化，需要同学们逐个记忆。例：watch-watched like一liked study-studied stop-stopped are-werego-wenthave-hadread-read5. 一般过去时的三种句型结构:句型结构例句肯定句主语+行为动词的过去式（+其他）I did h

15、omework yesterday.主 语+was/were+其 他I was very happy yesterday.否定句主语+didnt+行为动词原形（+其他）I didnt do homework yesterday.主语+was/were+not+ 其他I wasn*t happy yesterday.一般疑问句Did+主语+行为动词原形（+其他）？Did you do homework yesterday?肯定回答：Yes,主语+did.否定回答:No+主语+didntYes, I did.是的，我写了。No, I didnt不,我没写。Was/Were+主语+其他？Were y

16、ou happy yesterday?肯定回答:Yes,主语+was/were.否定回答：No,主语+was/were+not.Yes, I was.是的，我很开心。No, I was not.不,我不开心。【考题精练3】一、单项选择。()1. Mike this storybook two days ago.A. readB. readsC. readed( )2.1 didnt wear glasses. But I must wear a pair of glasses every day now.A. last yearB. next weekC. now( )3. Miss Gree

17、n usually letters me twenty years ago.A. writes; toB. writes; forC. wrote; to( )4. She to watch TV on Saturday evening.A. likedB. likeC. likes二、用所给词的适当形式填空。1. The boy often(get) up late, but he(get) up early this morning.2.1 (go) to Bens birthday party last night and(take) him a gift.3. Lucy(eat) tw

18、o apples every evening.三、按要求完成句子。1. My sister bought things last night.(用 every Sunday 改写句子)My sister things.2. The girls climbed up the hill.(用 now 改写句子)The girls up the hill3. He has a singing lesson every Friday(用 last Friday 替换 every Friday)He a singing lesson last Friday.参考答案【语音】C【考题精练1】一、CA二、L

19、ean, can2.could, couldnt3.could 4.could 5.could2.What could, do【考题精练2】4、试牛刀 1 ： 1 .uses, to call 2.used, to call, me 3.with 4.use1、试牛刀 2： l.My mother wrote letters to her friends ten years ago.或 My mother wrote her friends letters ten years ago.2.C3.C小试牛刀3： CC【考题精练3】一、AACC二、1 .gets, got2.went, took3.eats三、l.buy, every Sunday2.is climbing, now3.had