中小学教育资源及组卷应用平台
Unit 4 Then and now
重难点讲解 (含答案)
词汇讲解
use 动词，意为“使用”
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。
=We wash hands with water.
【拓展】use和with都有用的意思，use是动词，with是介词，用法不同
“和” I played football with my brother last Sunday.
with的用法: “长着” The boy with a big nose is my brother.
“拥有” 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”。
【小试牛刀1】
Mr White (use) the telephone (call) people.
My father (use) a mobile phone (call) (I) just now.
Who can make a sentence (use/with) this new word
They (use/with) paper to make a T-shirt.
【答案】1.uses, to call 2.used, to call, me 3.with 4.use
write sb. a letter写信给某人
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。
=I often write 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.
A.to; at B.for; in C.to; in
--What did you do yesterday --I a letter at home.
A.writed B.am writing C.wrote
【答案】1.My mother wrote letters to her friends ten years ago.
或My mother wrote her friends letters ten years ago.
2.C 3.C
重难点讲解
Six years ago, Mike could read and draw, but he could not write.
六年前，迈克会阅读和画画，但是他不会写字。
解析：(1) could是情态动词 can的过去式，用于谈论某人过去拥有的能力，其后接动词原形。
它的否定形式是在 could后面加上not,可以缩写成couldn't。
(2) could还可以表示许可或同意，指委婉客气地提出问题或陈述看法。
【例句】(1) Could you speak English then 那时候你会说英语吗
(2) Could I borrow your computer 我可以借用你的电脑吗
【练习】单项选择。
( )(1) Little Tom could not the piano last year.
A. play B. plays C. playing
( )(2) Su Hai look after herself when she was a child.
A. cannot B. can C. could
【答案】(1)A (2)C
Twenty years ago, Mr Brown wrote letters to his friends.
二十年前，布朗先生写信给他的朋友们。
解析：wrote 是 write的过去式形式。write(a letter/letters) to sb意为“写信给某人”
相当于write sb a letter/letters。
【例句】George wrote some letters to his friends.=George wrote his friends some letters.
乔治写了一些信给他的朋友们。
【练习】单项选择。
( ) Su Hai’s mother a letter to her friend last weekend.
A. writes B. wrote C. writing
【答案】B
He used the telephone at home and in the office to call people.
他在家以及办公室里用电话打电话给人们。
解析：used是 use的过去式形式。use…to do sth意为“用……去做某事”,带 to的动词不定式在此处表示目的。
【例句】John's little sister can use a painting brush to draw pictures.
约翰的小妹妹会用画笔画画。
【练习】用所给词的适当形式填空。
Mike uses the computer (write) music.
【答案】to write
She bought things from shops. 她(过去)从商店买东西。
解析：bought 是 buy的过去式形式。buy …from …意为“从……买……”。
表示“买某物给某人”则用短语buy sth for sb,相当于buy sb sth。
【例句】(1) Mrs Johnson's son often buys toys from the toy shop.
约翰逊太太的儿子经常从玩具店买玩具。
(2) Mr Brown wants to buy a Christmas tree for Mike.
=Mr Brown wants to buy Mike a Christmas tree.
布朗先生想买一棵圣诞树给迈克。
【练习】按要求完成句子。
We can buy our teachers some flowers on Teachers’ Day.(改为同义句)
We can buy our teachers on Teachers’ Day.
【答案】some flowers for
The lesson goes on, but Bobby is still looking out of the window.
课继续进行着，但是波比仍然朝窗外看。
解析：look out of ...意为“朝……外看”。其他常见的与 look 搭配的短语:
look for 意为“寻找”, look after意为“照顾”, look out意为“小心”, look around 意为“环顾四周”。
【例句】That dog is looking out of the door. 那只狗正在朝门外看。
【练习】单项选择。
( ) Mr Green the window to enjoy the beautiful scenery.
A. looked out of B. looked after C. looked for
【答案】A
Miss Fox gets angry. 狐狸老师变得生气。
解析：句中的 get 是系动词，意为“变得，成为”，常与形容词连用，表示一种渐渐变化的过程。
【例句】We have to go now. It's getting late. 我们现在得走了。天色越来越晚了。
【练习】根据中文提示完成句子。
夏天天气变得炎热起来了。
The weather in summer.
【答案】gets hot
Miss Fox waits for the answer. 狐狸老师在等待答案。
解析：wait for …意为“等待……”,后接名词或代词作宾语。
【例句】We're waiting for the metro to the museum.
我们正在等去博物馆的地铁。
【练习】根据所给中文提示填空。
Is the teacher (等待) you in the office
【答案】waiting for
易错易混全解
易混淆动词 look, see, watch 与 read 的用法。
【例题】单项选择。
( ) My father newspapers for news ten years ago.
A. watched B. saw C. looked D. read
【答案】D
点拨：look 强调“看”的动作，可以单独使用，用来引起对方的注意，如果后面接宾语，则要与at连用；see强调“看”的结果，表示看见、看到；watch 表示注视、观看，常用于表示看电视、看电影、观看足球之类的体育运动等；read表示阅读，常用于表示看书、看报纸等。此题设空处后为newspapers,应该用read 来搭配,故选D。
易混淆 with 与 use 的用法。
【例题】选词填空。
(1) I cut the paper (with/use) the knife.
(2) You can (with/use) my mobile phone to call your mother.
【答案】(1) with (2) use
点拨：with 和 use 都有“用”的意思，但是两者用法不同。with 是介词，表示一种方式，在句中作状语；use 是动词，在句中作谓语。
第(1)小题，句中已经有谓语动词cut，设空处所填内容应与后面的 the knife一起作状语，故填 with。第(2)小题,句子缺少谓语动词,故填 use。
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。
Mr Brown wrote letters to his friends.布朗先生给他的朋友们写信。
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Unit 4 Then and now
语法梳理：一般过去时VS一般现在时精讲精练(含答案)
比较：一般过去时VS一般现在时
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。
动词原形/三单
谓语动词
am/is/are
标志词：every day, always, usually, often, sometimes, seldom(很少), never(从不)
动词三单变化规则：
一般在动词尾加s，如：look--looks, read--reads;
以s, x, sh, ch以及o结尾的动词加es，如：catch--catches, go--goes, do--does;
以“辅音字母+y”结尾的动词，变y为i，再加es, 如：fly--flies;
特例：have--has
注：当主语是he, she, it以及单数，不可数名词时用三单。
句型转化
肯定句： I am at home. I like cats. He likes lions.
否定句： I am at home. I don’t like cats. He doesn’t like lions.
一般疑问句： -Are you at home -Do you like cats -Does he like lions
-Yes, I am./No, I’m not. -Yes, I do./No, I don’t. -Yes, he does./No, he doesn’t.
特殊疑问句： Where are you What do you like He likes lions.
一般过去时
定义：指发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
谓语动词
was/were
标志词：yesterday, yesterday morning/afternoon/evening
last week/month/year/term上一周/日/去年/上个学期
this morning/afternoon/evening
just now(刚才)；a week ago(一周前); long long ago(很久以前)
one day(一天); the day before yesterday(前天)
动词过去时式的变化规则★★★★★
例：watch—watched like—liked study—studied stop—stopped are—were
go--went have--had read--read
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 homework yesterday.
主语+was/were+其他 I was very happy yesterday.
否定句 主语+didn't+行为动词原形（+其他） I didn't 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+didn't. Yes, I did. 是的，我写了。No, I didn’t. 不，我没写。
Was/Were+主语+其他？ Were you 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】
按要求写词。
1.can（过去式） 2.went（原形）
3.take（过去式） 4.fly（过去式）
5.read（过去式） 6.saw（原形）
7.couldn’t（完整形式） 8.shop（现在分词）
9.e-mail（复数） 10.buy（过去式）
用所给词的适当形式填空。
1.My grandmother is (read) e-books on the Internet now.
2.My parents (use) the telephone (call) people before.
3.Liu Tao (write) a letter to his e-friend yesterday morning.
4.Twenty years ago,she usually (make) friends at school.
5.Mike (watch) TV after dinner last night
6.Mrs Black (buy) a lot of things in the supermarket yesterday morning.
7.I (go) to Ben's birthday party last night and (take) him a gift.
8.Helen (eat) a hamburger and drinks a bottle of milk every morning.
9.Liu Tao (get) a new computer from his father last weekend.
10.Eight years ago,Ben (cannot) write,but now he can write many words.
按要求完成句子。
1.He used the telephone to call people twenty years ago.(改为同义句)
He people the telephone twenty years ago.
2.There were some newspapers on the table just now.(改为一般疑问句)
newspapers on the table just now
3.They found a small lake in the forest.(改为否定句)
They a small lake in the forest.
4.Nancy could draw pictures five years ago.(对画线部分提问)
Nancy five years ago
5.Miss Li is telling us a story now.(用yesterday替换now改写句子)
Miss Li a story yesterday.
could表达某人过去会做某事
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couldn’t =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 + couldn’t + 动词原形（+其他）.
一般疑问句结构：Could + 主语 + 动词原形（+其他）？
肯定回答：Yes, 主语+could./否定回答：No, 主语+couldn’t.
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。
典例： When I was five years old, I could sing, but I couldn’t dance.
当我五岁的时候，我会唱歌，但是我不会跳舞。
【考题精练】
单项选择。
( )1.Mr Green because Tom didn't him in class.
A.gets angry;listened to B.gots angry;listen C.got angry;listen to
( )2.Ten years ago,I eight years old and you ten.
A.was;were B.was;was C.were;are
( )3.The boy skate,but the girl .
A.could;didn't B.could;couldn't C.couldn't;did
( )4.Sam can make a sentence “ago”,but Bobby .
A.for;doesn't B.with;can C.with;can't
( )5.Helen couldn't dance sing five years ago.
A.or B.and C.to
根据中文提示完成句子。
1.老约翰以前听收音机获取新闻。
Old John the radio before.
2.苏海的爷爷喜欢看报纸。
Su Hai's grandpa likes .
3.现在，我们可以随处给我们的朋友们打电话。
Now we can .
4.五年前，我不会溜冰，但是我会游泳。
I skate ,but I .
5.在周末，我们通常步行去超市购物，然后去看电影。
At weekends,we usually the supermarket to do ,and then we go to the cinema.
参考答案
1.could 2.go 3.took 4.flew 5.read 6.see 7.could not 8.shopping 9.e-mails 10.bought
1.reading 2.used,to call 3.wrote 4.made 5.Did,watch 6.bought 7.went, took 8.eats 9.got 10.couldn't
l.called,with2.Were there any3.didn't find 4.What could,do 5.told us
四、1.C 2.A 3.B
4.C解析：make a sentence with,意为“用……造句”；but表示转折，前半句表示肯定，则后半句表示否定。故选C。
5.A
五、1.listened to,for news 2.reading newspapers
3.call our friends anywhere 4.couldn't,five years ago,could swim
5.walk to,shopping
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。
一般直接在词尾加-ed。
以不发音的e结尾的动词在词尾加-d。
以辅音字母加y结尾的动词,变y为i,再加-ed。
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。
不规则动词过去式的变化,需要同学们逐个记忆。
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。
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Unit 4 Then and now
必背知识+重点词句默写(含答案)
语音 字母组合 er在单词中可发/ /音,例如:mother, sister, summer, teacher, winter
必背词汇 单词 四会 ago ……以前 office办公室 newspaper报纸 news新闻watch 观看 e-book 电子书 with 用 yesterday昨天
三会 use使用,利用 telephone 电话 anywhere 随处,到处 radio 收音机TV电视 still 仍然 spell 拼读,拼写
词组 then and now过去和现在 twenty/thirty years ago二十/三十年前write letters to…写信给……write an email/emails写一封电子邮件use the telephone使用电话in the office 在办公室里mobile phone移动电话,手机call people anywhere随处打电话给人们listen to the radio听收音机read newspapers/e-books看报纸/电子书on the Internet在网make friends交朋友 all over the world全世界do shopping 购物work hard努力工作on holiday度假invent the compass发明指南针look out of朝……外看listen to me听我说go on继续spell the word拼写这个单词get angry变得生气make a sentence with …用……造句wait for the answer等待答案
必背句型 四会 1. Six years ago, Mike could read and draw, but he could not write.六年前，迈克会阅读和画画，但是他不会写字。2. Now he can do many things. 现在他会做许多事情。3. Twenty years ago, Mr Brown wrote letters to his friends.二十年前，布朗先生写信给他的朋友们。4. He used the telephone at home and in the office to call people.他在家以及办公室里用电话打电话给人们。5. Thirty years ago, Mike's grandpa listened to the radio and read newspapers for news.三十年前，迈克的爷爷听收音机和看报纸获取新闻。6. She bought things from shops.她(过去)从商店买东西。7. The lesson goes on, but Bobby is still looking out of the window.课继续进行着，但是波比仍然朝窗外看。8. Miss Fox gets angry.狐狸老师变得生气。9. Sam, make a sentence with“egg”. 山姆,用“egg”造一个句子吧。10. Miss Fox waits for the answer. 狐狸老师在等待答案。
必会语法 could表达某人过去会做某事；一般过去时VS一般现在时
重点词句默写通关(有答案)
一、词组
过去和现在 二十/三十年前
写信给…… 写一封电子邮件
使用电话 在办公室里
移动电话,手机 随处打电话给人们
听收音机 看报纸/电子书
在网 交朋友
全世界 购物
努力工作 度假
发明指南针 朝……外看
听我说 继续
拼写这个单词 变得生气
用……造句 等待答案
二、句子六年前，迈克会阅读和画画，但是他不会写字。 现在他会做许多事情。 二十年前，布朗先生写信给他的朋友们。 他在家以及办公室里用电话打电话给人们。 三十年前，迈克的爷爷听收音机和看报纸获取新闻。 她(过去)从商店买东西。 课继续进行着，但是波比仍然朝窗外看。 狐狸老师变得生气。 山姆,用“egg”造一个句子吧。 狐狸老师在等待答案。
重点词句默写答案
一、词组
then and now过去和现在
twenty/thirty years ago二十/三十年前
write letters to…写信给……
write an email/emails写一封电子邮件
use the telephone使用电话
in the office 在办公室里
mobile phone移动电话,手机
call people anywhere随处打电话给人们
listen to the radio听收音机
read newspapers/e-books看报纸/电子书
on the Internet在网
make friends交朋友
all over the world全世界
do shopping 购物
work hard努力工作
on holiday度假
invent the compass发明指南针
look out of朝……外看
listen to me听我说
go on继续
spell the word拼写这个单词
get angry变得生气
make a sentence with …用……造句
wait for the answer等待答案
二、句子
1. Six years ago, Mike could read and draw, but he could not write.
六年前，迈克会阅读和画画，但是他不会写字。
2. Now he can do many things. 现在他会做许多事情。
3. Twenty years ago, Mr Brown wrote letters to his friends.
二十年前，布朗先生写信给他的朋友们。
4. He used the telephone at home and in the office to call people.
他在家以及办公室里用电话打电话给人们。
5. Thirty years ago, Mike's grandpa listened to the radio and read newspapers for news.
三十年前，迈克的爷爷听收音机和看报纸获取新闻。
6. She bought things from shops.她(过去)从商店买东西。
7. The lesson goes on, but Bobby is still looking out of the window.
课继续进行着，但是波比仍然朝窗外看。
8. Miss Fox gets angry.狐狸老师变得生气。
9. Sam, make a sentence with“egg”. 山姆,用“egg”造一个句子吧。
10. Miss Fox waits for the answer. 狐狸老师在等待答案。
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Unit 4 Then and now
语音精讲精练 (含答案)
【语音】字母组合“er”的发音
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
拓展：字母组合er在重读闭音节中，常发长元音/ :/，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.paper B.summer C.term D.worker
【考题精练】
从下列每组单词中选出画线部分读音不同的一项。
( )1.A.term B.worker C.sister D.father
( )2.A.skirt B.bird C.thirty D.Saturday
( )3.A.world B.word C.work D.doctor
( )4.A.pick B.write C.sing D.office
( )5.A.visited B.planted C.laughed D.pointed
( )6. A. Chinese B. invent C. stick D. British
( )7. A. mobile B. radio C. ago D. compass
( )8. A. reads B. meat C. weather D. teacher
( )9. A. ruler B. Internet C. sister D. term
( )10. A. now B. how C. cow D. show
( )11. A . after B. summer C. hurt D. letter
( )12. A . then B. telephone C. elephant D. become
( )13. A . radio B. anywhere C. make D. lake
( )14. A . hear B. early C. dear D. year
( )15. A . museum B. use C. student D. pudding
( )16.A.war B.part C.art D.farmer
( )17.A.brother B.honey C.some D.soft
( )18.A.dear B.wear C.bear D.pear
( )19.A.sister B.German C.teacher D.summer
( )20.A.cooked B.picked C.helped D.pointed
( )21.A.paper B.summer C.term D.worker
( )22.A.arm B.quarter C.car D.park
( )23.A.bottle B. hold C.holiday D.orange
( )24.A.now B.cow C.out D.show
( )25.A.year B.ear C.wear D.near
参考答案
1.C
2.D解析：A.skirt/ :/ B.bird/ :/ C.thirty / :/ D.Saturday / /
3.D解析：A.world/ :/ B.word/ :/ C.work/ :/ D.doctor / /
4.B解析：A.pick/ / B.write/a / C.sing/ / D.office/ /
5.C解析：A.visited/id/ B.planted/id/ C.laughed /t/ D.pointed /id/
6-10ADCDD
11-15CABBD
16.A解析：A.war/ :/ B.part/a:/ C.art /a:/ D.farmer /a:/
17.D解析：A.brother/ / B.honey/ / C.some/ / D.soft / /
18.A解析：A.dear/ / B.wear/e / C.bear/e / D.pear/e /
19.B解析：A.sister/ / B.German/ :/ C.teacher/ / D.summer / /
20.D解析：A.cooked/t/ B.picked/t/ C.helped /t/ D.pointed / d/
21.C解析：A.paper/ / B.summer/ / C.term / :/ D.worker / /
22-25DDBC
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 she’s on holiday. 现在她在度假
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