内容正文:
●
Unit 2
第①课时
r Part A Le
基础课课练
一、帮Youyou为下列情境选择对应的
家庭规则。
(
)1.Mike wants to watch TV after
school.
)2.The floor is wet.
(
)3.Sarah runs in the living room.
)4.Mike's room is messy(杂乱的)
)5.Kate often eats in bed.
A.Don't run in the living room.
B.Tidy your room.
C.Do your homework first.
D.Don't eat in bed.
E.Be careful!
(五育并举)二、根据生活常识,为下列场
所选择合适的提示语。
、Tosr
A.Go to bed before 9:00 p.m.
a.m.上午
.m.下
B.Keep quiet in class.
C.Don't eat in the classroom.
D.Don't be late.
E.Do your homework first.
F.Keep the classroom clean.
G.Tidy your room.
H.Don't read books in bed.
Class rules
Family rules
1.
2
2
3.
3
4
4
英语四年级下PEP
Family rules
t's talk Think and say
¥培优步步高
三、阅读Ttu的家规,完成下列任务。
Hello!I'm Tutu from Hunan.
Now,let me tell you my family
rules.
ODon't read books in bed.
ODon't draw on the wall.
OKeep the room clean and tidy.
OFinish your homework on time.
OGo to bed before 9:00 p.m.
Do you have rules in your family?
Rules in my family can make me good.
任务一:阅读Tutu的家规,判断下列句
子正(T)误(F)。
)1.Tutu is from Hubei
)2.Tutu can read books in bed.
)3.Tutu can get up at 9:00 p.m.
)4.Tutu has five family rules
任务二:What does Tutu think of his
family rules?
任务三:电子产品在小学生中普遍使用,
针对电子产品的使用,给Tutu立几条家
规。(可用汉语表达)
任务四:请你从上述家规中选择一条并
为其设计一张警示牌。
》11
黄闪名师天天练
第2
课时
Part A Let's le
基础课课练
一、
帮Yueyue用所给单词的适当形式填
空,补全她的家规。
1.There are some
(rule)in my
family.
2.They're all
(help).
3.Do my homework
(one).
4.Don't
(run)in the living room.
二、给Yueyue的家规选择对应的图片。
B
)1.Wash my hands.
)2.Do my homework first.
)3.Tidy my room.
三、下面是Yueyue的一段独白。选词并
用其适当形式填空,补全她的独白。(每
个单词限用一次)
watch,run,wash,kind
My family has some rules.When I
get home from school,I can't 1.
TV.I must 2.
my hands first.
After that,I need to finish my homework.I
can't 3.
in the living room.It's
not safe.When I talk to my parents,I
should use 4.
words.These
rules make our home a nice place.
12《
arn Look,choose and say
幸培优步步高
(生活情境)四、Yueyue在校是守规矩的
学生,在家表现怎么样呢?阅读短文,完
成下列任务。
Yueyue is a good student at
school..She never breaks(违犯)the
school rules.But she is not a good girl
at home.She often makes a mess(
F)in her room.She doesn't like to
help her mother set the table(摆放餐
)She watches TV first after school.
She goes to bed very late and reads in
bed.Yueyue's mother writes some family
rules for her.
1.Keep your room clean.
2.Go to bed early.
3.Do your homework first.
1.Don't read in bed.
2.Don't watch TV first after school.
3.Don't make a mess in your room.
任务一:阅读短文,判断下列句子正(T)
误(F)。
(
)1.Yueyue has some family rules.
(
)2.Yueyue never breaks rules at
school.
()3.Yueyue is a good girl at home.
)4.Yueyue doesn't watch TV.
任务二:每个家庭都有自己的家庭规则,
请你补充两条你的家庭规则。
Family rules
Help to sweep the floor.
Don't play with the phone.
1.
2.
第3课时
P
基础课课练
一、小兔Rebecca放学了,你知道它回家
的路线吗?将画线部分发音相同的单词
连起来就是它回家的路线。
driver
computer
winter
river
bird
g
near
number
二、Rebecca到家后先完成了妈妈布置
的小习题。看图,选词填空,补全句子。
f◆◆◆◆◆
◆◆一◆◆一◆一◆一◆◆◆一◆一◆一◆一中
under
sister
winter
water
teacher
2
3
1.It's cold in
2.I'd like some
3.My mother is a
4.The dog is
the table.
5.My
likes to read books
三、完成习题后,Rebecca又开始大声朗
读,练习单词的发音。选出每组单词中
画线部分发音不同的一项。
)1.A.winter
B.sister
C.eraser
英语四年级下PEP
rt A Let's spell
)2.A.nurse
B.river
C.number
)3.A.under
B.girl
C.water
)4.A.sister
B.ruler
C.art
)5.A.dinner
B.bird
C.tiger
¥培优步步高
(即兴歌谣)四、Rebecca读了一段有趣的
歌谣。阅读歌谣,完成下列任务。
Father,father,my father is a doctor.
Mother,mother,my mother is a farmer.
Brother,brother,my brother is a football
player.
Sister,sister,my sister is a teacher.
All my family are getting together.
And we love each other.
任务一:阅读歌谣,找出与所给单词画线
部分相同且发音一致的单词,并写在横
线上。(相同的算1个)
water:
任务二:阅读歌谣,判断下列句子正(T)
误(F)。
)1.My father is a doctor.
()2.My family has four people
)3.My brother is a basketball
player.
()4.My family all love each other.
》13
黄名师天天绵
第4
课时Part B Le
基础课课练
一、下面几张照片来自Youyou的家规
手册。给下列照片选择对应的家规。
)4.
A.Don't touch hot things
B.Don't eat in bed.
C.Don't play balls in the house.
D.Don't run in the living room.
二、Ay在朋友圈上传了几张照片。判断
下列朋友圈留言与照片是(T)否(F)相符。
®
Amy's mother
Amy's father
Amy
Amy's brother
)1.-Where is Amy's mother?
-She is in the kitchen.She is
cooking
)2.-Where is Amy's father?
-He is on the playground.He
is singing and dancing.
)3.-Where is Amy?
She is in the library.She is
reading books.
14《
t's talk Look and say
)4.-Where is Amy's brother?
-He is in the bedroom.He is
doing his homework.
撑培优步步高
三、Tutu到Youyou家做客,他们都聊了
些什么呢?阅读对话,完成下列任务。
Youyou:I have a cute dog.Its name is
Dudu.
Tutu:Really?1.
Youyou:It's in the bedroom.
Tutu:2.
Youyou:Shh.Don't be so loud.3.
Tutu:I'm sorry.4.
Youyou:My mum is in the kitchen.
Tutu:5.
Youyou:OK!
任务一:选择正确的选项,补全对话。
A.Where is your mum?
B.Let's go and help her.
C.Where is it?
D.Let's go and see the dog.
E.Dad is sleeping in the bedroom.
任务二:圈出与对话内容相符的图片。
A.
B
D
第⑤课时
Part B Let's l
基础课课练
一、这是Lisa新家的装修设计图。给每
个房间选择正确的名称。
A.bedroom
B.study
C.living room
D.kitchen
E.bathroom
二、Youyou对Chenchen拍的短片很好
奇。看图,仿照例句,完成对话。
例:-Where is Amy?
LMR
prtn
Is she in the study?
-Yes.she is.She is doing her homework.
1.-Where is your father?
-Yes,he is.He is sleeping
Mike
¥培优步步高
三、在“最美家庭”评选活动中,一位参
赛者的纪录片吸引了Chenchen的注意。
阅读短文,完成下列任务。
My name is Betty.Welcome to my
英语四年级下PEP
earn Look,match and say
home.There are six rooms in my
home.A living room,two bedrooms,a
study,a kitchen and a bathroom.My
father is in the living room.He is watching
TV.My mother is in the bathroom.She
is washing her hands.I'm in the study.
I'm reading books.I have a cute cat.
Where is it?Look!It's in the kitchen.It's
eating fish.My home is small but nice.I
love my home.
任务一:阅读短文,圈出Be地y家的照片。
A
B
任务二:阅读短文,给人物选择对应的房
间和正在做的事情,完成鱼骨图。
0
Where
father
mother
Betty
cat
6
Doing
B
有
G
》15
黄钢师天天爆
第6
课时
Part
基础课课练
一、生活处处有规则。给下面四个情境
选择对应的规则。
02
A.Don't touch hot things.
B.Do your homework first.
C.Don't run or jump in the living room
D.Don't drink or eat in bed.
二、学校英语报的小记者Tutu正在采访
Ly。选择正确的选项,补全采访记录。
A.What about in the kitchen?
B.What rules do you have in your
bedroom?
C.Are there different rules for different
rooms in your house?
D.Which family rule do you like best?
E.What family rules do you have?
Tutu:Hi,Lily.I know your family has
some rules.1.
Lily:There are lots.For example,I can't
watch TV before I finish my
homework.
Tutu:2.
Lily:Yes!In the living room,we can't
play football.
Tutu:Oh,right.It's safe.3.
Lily:In the kitchen,we can't touch hot
things,or we might get hurt.
Tutu:Safety always comes first.4.
16《
B Read and write
Lily:In my bedroom,I have to tidy my
room every morning and put away
my toys.
Tutu:5.
Lily:I think my favourite rule is that we
can cook together in the kitchen
on weekends.It has so much fun.
Tutu:Thank you,Lily.
Lily:You're welcome!
幸培优步步高
三、下面是Chenchen的一段独白。阅读
他的独白,判断下列句子正(T)误(F)。
Hi!I'm Chenchen.I'm a student.
I'm not happy because there are too
many rules at my home.
I get up at seven o'clock on
school days.After school,I can't play
with my friends or watch TV,because
I must(必须)do my homework first.
After dinner,.Ican't relax(放松),either
()I have to help my mum do the
housework.I must take a shower
before I go to bed.I have to learn to
play the piano on Saturdays.On
Sundays,I must clean my room.
I have so many rules at my home.
What can I do?What about you?
()1.Chenchen is a happy student.
)2.Chenchen must get up at seven
o'clock on Saturday.
)3.Chenchen must do his home-
work first after school.
)4.Chenchen needs to help his
mum with some housework.
)5.Chenchen learns to play the
piano on Friday.
●
英语四年级下PEP
Part C
Project Reading time
一、
Mke和妈妈一起制作了一份家庭协议。阅读协议内容,并配图。
My family agreement
agree to follow these family rules:
)1.Use kind words.
)2.Do housework together.
B
E
)3.Tidy my bedroom.
)4.Don't eat in bed.
)5.Do my homework first.
、Thank you!
)6.Don't play with balls in the living room.
的
二、Ben的宠物鸟Albert不见了,心急如焚的他向妈妈求助。在妈妈的提示下,Ben开
启了一场寻找Albert的大冒险。阅读绘本,完成下列任务。
Mum:Is he in the study?
Ben:Mum,where is Albert?
m
Ben:Let me see...
Π
Mum:Is he in the kitchen?
Mum:Is he under the desk?
Ben:Let me see...
Ben:No,he isn't.
No,he isn't.
网
Mum:Is he
Ben:No,he isn't.
Ben:Is he behind the window?
Look!He is on the window.
Mum:No,he isn't.
Ben:Is he on the desk?
Mum:No,he isn't.
Ben:Is he under the chair?
Mum:No,he isn't.
任务一:阅读绘本,将第2幅图的对话补充完整。
任务二:阅读绘本,判断下列句子或对话正(T)误(F)。
)1.Albert is in the kitchen.
)2.-Is Albert under the desk?
-Yes,he is.
)3.-Is Albert behind the window?
-Yes,he is.
)4.-Is Albert under the chair?
No,he isn't.
任务三:Ben喊Albert下来。Albert吓了一跳,飞走了。他飞到哪里了呢?看图
片,回答问题。
Where is Albert now?
田
》17
黄名师天天痛
山nit2素养阅读
一、星期六晚上,Tony一家都在家做什么?阅读Tony的介绍,完成表格。(只写房间
名称即可)
My dad and mum are in the kitchen.They
cook dinner.The kitchen is big and clean.My
sister is in the living room.She is watching TV.
图
My grandpa and grandma are in their bedroom
with my little brother.They are so happy.I'm in
@
the study.There is a big desk and a chair in it.
And my schoolbag is under the desk.Where are
my glasses?Oh!They are in the bathroom
Dad Mum
1.
Sister
2
Tony
3
Grandparents Little Brother
4.
二、Mk养成了勤打扫、勤收纳的好习惯。阅读短文,完成下列任务。
Mike often cleans his bedroom on Sunday afternoon.He cleans the floor
at3:O0p.m.And then,Mike washes his clothes(诜衣服).He needs an hour to
do the washing.After that,he comes to the desk.He puts the model()
plane on the desk.It's a birthday gift from his uncle.He likes it very much.He
puts the books on the bookshelf(and the pens into the pencil box.The
basketball is on the floor.Mike puts it under the bed.
Mike finishes cleaning at 6:00 p.m.His bedroom is tidy and clean now.He
feels happy to see that.
任务一:阅读短文,完成Mike打扫卧室的顺序。
clean the
wash his
clean the
clean his 1.
2
clothes
desk
Mike feels
finish
put away the books
3.
cleaning
and the basketball
任务二:阅读短文,回答下列问题。
1.Who buys the model plane for Mike?
2.Where is Mike's basketball after cleaning?
18《
英语四年级下PEP
(伍育并举)三、Youyou向同学们分享了规则的重要性。阅读短文,完成下列任务。
1We follow rules every day.There are rules for things we do at home,at
school and in a lot of other places.
2Think about rules at home.Parents usually make these rules.Parents
ask us to wash our hands and clean up.They make other rules about eating
unhealthy food,watching TV or bedtime.
3There are rules at school too.Teachers and the principal()make the
school rules.We should always be polite and take turns when we play games.
Librarians(图书管理员)help us follow the rules in the school library.We can't
eat,drink or be noisy there.
4Swimming pools are fun places but we also must follow the rules.You
shouldn't run near the water and you can'teat,drink or litter(乱扔垃圾)near
the pool.You must always listen to the lifeguards because they make sure we
follow the rules and that we are safe in and near the water.
5Rules tell us what we can and can't do,and they help keep us safe,
happy and healthy.
任务一:阅读短文,选择正确的答案。
()1.How many places are mentioned(被提到)in the passage?
A.Three.
B.Four.
C.Five.
)2.What's the main idea(大意)of the passage?
A.We follow rules every day.
B.Rules help keep us safe,happy and healthy.
C.There are rules only at home and at school.
)3.What does the underlined word "lifeguards"mean in Chinese in the passage?
A.保安
B.教练
C.救生员
)4.Which of the following is NOT right?
A.Wash our hands at home.
B.Run near the swimming pool.
C.Keep quiet in the school library.
任务二:What other important rules in our daily life?(日常生活中其他重要的规
则还有哪些?写出一条即可)
》19
黄宫师天天练
单元要点汇览
项目
内容
字母组合er在单词中发/a(r)/音。如:brother,ruler,,number,computer,
语音
dinner,.winter等
1.watch看
2.TV电视
3.homework家庭作业
4.first首先;首次:第一5.wet湿的;未干的
6.run跑;奔跑
7..living room客厅;起居室8.safe安全的
9.word言语;单词;字
重点
10.wash洗
11.loud说话太大声的;吵闹的12.sleep睡觉
词汇
13.bedroom卧室
14.kitchen厨房
15.study书房
16.bathroom浴室;洗手间17.work(花费时间和精力)做(某事);工作
18.think想;思考19.hard努力地;费力地
20.follow.遵循,听从(忠告、指示等)
21.feel觉得;感到
22.helpful有帮助的;有用的
living room客厅;起居室watch TV看电视have to必须
be careful小心y
重点
kind words友善的话语do one's homework做某人的家庭作业
短语
wash hands洗手
1.一Mum,can I watch TV?妈妈,我能看电视吗?
No.You have to do your homework first.不行。你得先做作业。
重点
2.Shh.Don't be so loud.嘘。别这么大声。
句型
3.Be careful,Jack.Don't touch hot things.
杰克,要小心。别碰烫的东西。
字母组合er的发音:
Step1.听录音,先跟读,掌握字母组合er在单词中的发音规律。
er,er,er /a(r)/,/(r)/,/(r)/
An eraser is under a ruler.一块橡皮在一把尺子的下面。
自然
Step2.听录音,根据发音规律写出下列单词中所缺的字母。
拼读
1.ov
结束
2.dinn
晚饭
3.tig
老虎
4.comput
电脑
Step3.听录音,根据单词发音写出下列单词。
1.
水2.
姐;妹3.
司机4.
河,江
20<《There are some cars on the farm in March.
三月份农场上有一些小汽车
Step2.听录音,根据发音规律写出下列单词
中所缺的字母。
1.star 2.dark 3.smart
4.market
Step3.听录音,根据单词发音写出下列
单词。
1.art 2.far 3.arm 4.park
[参考答案]
Step 2.1.ar 2.ar 3.ar 4.ar
Step 3.1.art 2.far 3.arm 4.park
Unit 2 Family rules
第1课时
-、1.C2.E3.A4.B5.D
二、Class rules:1.B2.C3.D4.F
Family rules:1.A 2.E 3.G 4.H
三、任务一:1.F解析:由短文中“Hello!I'm
Tutu from Hunan.”可知,Tutu来自湖南,
故此题表述错误。
2.F解析:由短文中“Don't read books in
bed.”可知,不能在床上读书,故此题表述
错误。
3.F解析:由短文中“Go to bed before
9:00p.m.”可知,Tutu在晚上九点前睡觉,
故此题表述错误。
4.T解析:由短文中内容可知,一共有5条
家规,故此题表述正确。
任务二:Rules in his family can make him
good.
任务三:家庭聚餐时,不允许使用手机或平板
电脑等电子产品;玩电子游戏有时间限制,每天
只能玩半个小时。答案不唯一)
任务四:略
第2课时
-1.rules 2.helpful 3.first 4.run
二、1.C2.A3.B
三、1.watch2.wash3.run4.kind
四、任务一:1.T解析:由短文中“Yueyue's
01
mother writes some family rules for her."
可知,Yueyue有些家规,与本题表述相符,
故答案为T。
2.T解析:由短文中“She never breaks
the school rules.”可知,Yueyue从不违犯
校规,与本题表述相符,故答案为T。
3.F解析:由短文中“But she is not a
good girl at home.”可知,Yueyue在家不是
好女孩,与本题表述不符,故答案为F。
4.F解析:由短文中“She watches TV first
after school.”可知,放学后Yueyue先看电
视,与本题表述不符,故答案为F。
任务二:1.Don't run in the house.
2.Keep the room clean.(答案不唯一)
第3课时
driver computer
winter
bird)
(river)
near
number
二、1.winter
2.water
3.teacher
4.under 5.sister
三、1.C解析:winter,sister中画线部分发
/a/音,eraser中画线部分发/1/音。
2.A解析:river,number中画线部分发/a/
音,nurse中画线部分发/3/音。
3.B解析:under,water中画线部分发/a/
音,girl中画线部分发/3:/音。
4.C解析:sister,ruler中画线部分发/a/
音,art中画线部分发/a:/音。
5.B解析:dinner,tiger中画线部分发/a/
音,bird中画线部分发/3:/音。
四、任务一:father,.mother,farmer,brother,,
player,sister,teacher,together,other
任务二:1.T2.F3.F4.T
第4课时
-、1.B2.C3.D4.A
二、1.T2.F3.T4.F
三、任务一:1.C解析:由对话中“Youyou:
It's in the bedroom.”可知,问句是问它在哪
63
里?故选C。
2.D解析:前方在谈论狗,由此可推测此处
应提议去看狗,故选D。
3.E解析:由对话中“Youyou:Shh.Don't
bes0loud.”可知,此处要填不要大声说话
的原因,故选E。
4.A解析:由对话中“Youyou:My mum is
in the kitchen.”可知,此处是问妈妈在哪里,
故选A。
5.B解析:根据前一句妈妈在厨房,B选项
“Let's go and help her..”符合题意,故选B。
任务二:圈出AD
第5课时
1©
二、1.Is he in the bedroom?
2.-Where is Mike?Is he in the kitchen?
-Yes,he is.He is cooking
3.-Where is Lucy?Is she in the living room?
-Yes,she is.She's sweeping the floor.
三、任务一:A
任务二:1.D解析:由短文中“My father is
in the living room.”可知,爸爸在客厅,故
选D。
2.C解析:由短文中“My mother is in the
bathroom.”可知,妈妈在洗手间,故选C。
3.A解析:由短文中“I'm in the study.”可
知,Betty在书房,故选A。
4.B解析:由短文中“I have a cute cat.
Where is it'?Look!It's in the kitchen.”可
知,猫在厨房,故选B。
01
5.G解析:由短文中“He is watching TV.”
可知,爸爸正在看电视,故选G。
6.E解析:由短文中“She is washing her
hands.”可知,妈妈正在洗手,故选E。
7.H解析:由短文中“I'm reading books.”
可知,Betty正在读书,故选H。
8.F解析:由短文中“It's eating fish.”可
知,猫正在吃鱼,故选F。
第6课时
-、1.B2.D3.A4.C
二、1.E2.C3.A4.B5.D
三、1.F解析:由独白中“Hi!I'm Chenchen.
I'm a student..I'm not happy..”可知,
Chenchen不开心,故此题表述错误,答案
为F。
2.F解析:由独白中“I get up at seven
o'clock on school days..”可知,Chenchen
在上学的时候才是七,点起床,故此题表述错
误,答案为F。
3.T解析:由独白中“After school,Ican't
play with my friends or watch TV,because I
must do my homework first..”可知,
Chenchen放学后需要先写作业,此题表述
正确,答案为T。
4.T解析:由独白中“I have to help my
mum do the housework..”可知,Chenchen
需要帮妈妈做一些家务,此题表述正确,答
案为T。
5.F解析:由独白中“I have to learn to play
the piano on Saturdays.”可知,Chenchen需要
在星期六学习弹钢琴,故此题表述错误,答案
为F。
Part C
-、1.F2.D3.E4.C5.B6.A
二、任务一:1.on the book
任务二:1.F解析:由绘本中“Mum:Ishe
in the kitchen?Ben:Let me see...No,he
isn't.”可知,Albert不在厨房,故答案为F。
2.F解析:由绘本中“Mum:Is he under the
desk?Ben:No,he isn't.”可知,Albert不在书
桌底下,故答案为F。
3.F解析:由绘本中“Ben:Is he behind the
window?Mum:No,he isn't.”可知,Albert不
在窗户后边,故答案为F。
4.T解析:由绘本中“Ben:Is he under the
chair'?Mum:No,he isn't”可知,Albert不在
椅子底下,故答案为T。
任务三:He's in the bathroom
Unit2素养阅读
一、1.kitchen解析:由短文中“My dad and
mum are in the kitchen.”可知。
2.living room解析:由短文中“My sister is
in the living room.”可知。
3.study解析:由短文中“I'm in the study..”
可知。
4.bedroom解析:由短文中“My grandpa
and grandma are in their bedroom with
my little brother..”可知。
二、任务一:1.bedroom2.floor3.happy
任务二:1.His uncle.
2.It is under the bed.
三、任务一:1.A2.B3.C4.B
任务二:略
单元要点汇览
[听力原文]
字母组合er的发音:
Step1.听录音,先跟读,掌握字母组合er在
单词中的发音规律。
er,er,er /a(r)/,/a(r)/,/a(r)/
An eraser is under a ruler.
一块橡皮在一把尺子的下面。
Step2.听录音,根据发音规律写出下列单词
中所缺的字母。
1.over 2.dinner 3.tiger 4.computer
Step3.听录音,根据单词发音写出下列单词。
1.water 2.sister 3.driver 4.river
01
[参考答案]
Step 2.1.er 2.er 3.er 4.er
Step 3.1.water 2.sister 3.driver
4.river
Unit 3 Time for school
第1课时
-1.to 2.for 3.to 4.for
解析:to后接动词或动词短语;for后接名词
或名词短语。
二、1.B2.C3.A
三、1.A2.C3.B
四、任务一:1.1:30p.m.
2.time
3.10:30p.m.4.bed5.6:30a.m.
6.get up
任务二:1.152.83.7
第2课时
-1.art 2.music 3.Chinese 4.maths
二、1.C2.A3.B
三、1.B2.C3.A
四、任务一:1.get up2.music3.first
4.next to
任务二:1.T解析:由短文中“I often get up
at seven o'clock in the morning.”可知,此题
表述正确,故答案为T。
2.T解析:由短文中“After breakfast,Igo
to school with my friend at seven forty.”可
知,此题表述正确,故答案为T。
3.T解析:由短文中“At10:10,I'm in the
music room.It's on the first floor.”可知,此
题表述正确,故答案为T。
4.T解析:由短文中“Then I play basketball
in the gym at three fifty.”可知,此题表述正
确,故答案为T。
5.F解析:由短文中“In the afternoon,I
have a computer class.”可知,此题表述错误,
故答案为F。
第3课时
第一关:1.C解析:选项A和B中的or发
音为/:/,而C选项中or发音为/3/。