重庆三中初中英语七年级上册Starter Unit 3-3经典练习卷(含答案)
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考试范围:xxx;满分:***分;考试时间:100分钟;命题人:xxx 学校:__________ 姓名:__________ 班级:__________ 考号:__________一、选择题1.Ask the teacher ________ your book.A.at B.of C.in D.for 2.—________,is that your schoolbag?—Yes,thanks.A.Goodbye B.Fine C.Excuse me D.OK 3.— Is this ______ pencil ?—No , it isn’t . It’s ______ .A.her ; hers B.his ; hisC.his ; hers D.hers ; his4.— Is this ______ pen ?—Yes , it is . It’s ______ .A.your ; my B.yours ; myC.your ; mine D.you ; mine5.My book is in my .A.pencil box B.dictionary C.ID card D.schoolbag 6.—Look! Those ______ my ______.—Oh, I see.A.is; box B.is; boxes C.are; box D.are; boxes 7.— Your English is very good.— __________.A.No, not very good B.You are rightC.It’s just so so D.Thank you8.Nobody thought it was easy to finish so much wok in ________.A.two days’ time B.two-days timeC.two day’s time D.two days time9.—Is this baseball John’s?—No, it’s not ________. ______ is in his bag.A.her; Hers B.his; His C.him; His D.hers; His10.—I can’t ________ my pen in the pencil box.—It’s in your schoolbag.A.meet B.thank C.find D.ask 11.—My English isn't good.—You can ask the teacher________ help.A.in B.for C.of D.at 12.—What's that?—It's ________ eraser.And it's ________ white eraser.A.a;an B.a;a C.an;a D.an;an13.Is that watch ________?A.my B.your C.you D.yours14.Please call me778⁃8898 if you have questions(问题).A.of B.at C.to D.in15.—Is this your book?—No,it isn’t ________.It is Mary’s.A.my B.mine C.me D.I16.These aren’t.They’re my brother’s.A.pen;mine B.pens;mineC.pen;my D.pens;my17.Please call Mary _______ 238-9868.A.in B.at C.on D.of18.—Is that your quilt?—.It’s her quilt.A.Yes, it is B.Yes, that isC.No, it isn’t D.No, that isn’t19.This is pencil and that is eraser.A.a;a B.an;an C.a;an D.an;a20.—Is this your pencil box?—________.It's mine.A.Yes,it is B.Yes,this isC.No,this isn't D.No,it isn't21.The red pen is ____.And the blue pen is ____.A.her,his B.his,her C.yours,mine 22.—Thank you for your English book.—________.A.I'm fine,thanks B.Yes,it's a bookC.You're welcome D.Have a good day23.—This book is Lucy’s.the notebook?—It’s Li Cheng’s.A.What’s B.How’s C.Who’s D.What about 24.—Thank you for finding my school ID card, Mike.—.A.I’m fine, thanks B.You, too C.Nice to meet you, too D.You’re welcome 25.—Is that eraser?—No, it isn’t. It’s.A.his; her B.your; hers C.his; my D.my; your26.-Thank you very much.- .A.Thanks a lot B.Oh, yes, thank you C.That's all right D.That 's right【参考答案】一、选择题1.D2.C3.C4.C5.D6.D7.D8.A9.B10.C11.B12.C13.D14.B15.B16.B17.B18.C19.C20.A21.C22.C23.D24.D25.B26.C【参考解析】一、选择题1.D解析:D【解析】【详解】句意为:向老师要你的书。
Start Unit3 Welcome同步练习一、单项选择1.— ________ are the eggs?— They are 40 yuan.A.How long B.How far C.How many D.How much2.The work is too hard for me, and I need ________ two hours to finish it. A.other B.others C.another D.the other3.选出一个发音与其他三个不同的选项( )A.add B.catch C.organize D.glad4.Which of the following underlined parts is different in pronunciation (发音)? A.nod B.cross C.lose D.promise5.Which number is wrong? ________.A.Ninety B.Ninteen C.Ninth D.Nineteenth 6.Some problems of living in the sea are similar to of living in outer space.A.those B.this C.these D.that7.Tom and Tim have some ________ and ________.A.tomatos; chicken B.tomatoes; chickensC.tomatoes; chicken D.tomatos; chickens8.—Our family are traveling to Germany for the Beer Festival.— ________A.Congratulations!B.See you later!C.Take care!D.Have fun!9.—________ students are there in your class, Steve?—Forty. And most of them are boys.A.How much B.How often C.How many10.—Would you like _____ to eat?—No, thanks.A.other something B.something otherC.something else D.else something二、单词拼写1.I know ________ (胡萝卜) are healthy.2.Come on! Let’s go to the ________ (湖泊).3.Spring (春天) is my favourite season because many kinds of f________ come out (开花).4.I don’t like these quilts. Please give me _________ (另一) one.5.We have some interesting and ____________ (有趣的) things for this term. 6.—________ (欢迎) to my birthday party!—Thanks and happy birthday!7.Please __________ (数数) from zero to nine in English.8.________ (这些) are my grandparents.三、完成句子1.There are two blackboards in our classroom. (对划线部分提问)________________________________________in your classroom?2.托尼通常走路去他的叔叔家。
考试范围:xxx;满分:***分;考试时间:100分钟;命题人:xxx 学校:__________ 姓名:__________ 班级:__________ 考号:__________一、选择题1.This is a cup. ______ cup is blue.A.A B.The C.An D./2.— What do you want to be in the future, Nick?— I want to be ________ pilot(飞行员) , it is ________ exciting(令人激动的,兴奋的) job. A.a, a B.a, an C.the, an D.a, the 3.— ________ these her hats?— No, they ________.A.Is;isn’t B.Am;are C.Are;isn’t D.Are;aren’t 4.Is he your friend? Yes, ________.A.it is B.it isn’t C.he is D.he isn’t 5.The pen is blue.The ruler is _____ too (也).A.black B.yellow C.green D.blue6.下面各组字母中含有相同音素的一组是___________。
A.L;R B.I;V C.A;H7.全部是元音字母组合的是__________。
A.VOA B.NBA C.AEO D.UFO8.I find____pen on the ground. Whose is______ pen?A.a;the B.the;a C.a;a9.This is ________pen. It's__________black.A.a;/ B./;aC.a;a D.an;a10.It's__________oran ge. It's_____________ yellow orange.A.a;a B.an; anC.a;an D.an;a11.下列字母的笔顺标注不正确的是________。
考试范围:xxx;满分:***分;考试时间:100分钟;命题人:xxx 学校:__________ 姓名:__________ 班级:__________ 考号:__________一、选择题1.下列字母和see读音相同的是A.C B.G C.J2.下列各组字母中含有相同音素的一组是 ____。
A.A, S B.H, I C.L, Y D.M, X 3.Are __ Kate’s __ ?A.this; book B.that; bookC.these; books D.those; book4.-What's your name? - _______.A.It's L. B.Li Lei C.Teacher5.你见到你的好朋友时,你说:________.A.Good morning B.Nice to meet you C.Hi6.英语字母共有_______个,其中含有元音字母________个。
A.26 ,5 B.26 ,3 C.24 ,5 D.24 ,3 7.用来表示不明飞行物的是_______。
A.NBA B.BBC C.UFO8.—___are your new shoes(新鞋子)?—They(它们)are blue.A.What color B.How many C.How old D.Whose 9.—Is this_____?—Yes_______.A.orange ;it is B.an orange;it'sC.an orange;it is D.A or C10.The key is yellow .的同义句是:_____________A.The key yellow.B.The is a yellow key.C.This is a yellow key.11.下列字母的小写形式在四线三格中只占一格的是___________。
A.H B.K C.T D.Z 12.—What’s this in English? — a ruler.A.It’s B.Its C.This is D.This’s 13.—______ you say that again(再,又),please?A.Does B.Are C.ls D.Can 14.The __________ is black and white.A.B.C.D.15.我们用________来表示“不明飞行物”。
考试范围:xxx;满分:***分;考试时间:100分钟;命题人:xxx 学校:__________ 姓名:__________ 班级:__________ 考号:__________一、选择题1._______ are in the same class.A.Helen and I B.I and Helen C.I, you and she D.These 2.-What's your name? - _______.A.It's L. B.Li Lei C.Teacher3.表示“停车”的是__________.A.O B.P C.R D.M4.—___are your new shoes(新鞋子)?—They(它们)are blue.A.What color B.How many C.How old D.Whose 5.在英语中,有____个元音字母,有____个元音音素。
A.5;12 B.10;12 C.5;20 D.5;86.I have _____orange.lt's ____ yellow orange.A.a;an B.an;a C.the;the D.an;an 7.I find____pen on the ground. Whose is______ pen?A.a;the B.the;a C.a;a8.—What color is your bag?A.It's yellow. B.It's nice. C.It's old. D.It's big. 9.—Do you like _________.—No.I like blue.A.orange B.apples C.flowers D.Milk10.下列字母和see读音相同的是A.C B.G C.J11.-What color is the panda(熊猫)?-It's__________.A.black B.black and whiteC.a black and white D.white12.— ________ these her hats?— No, they ________.A.Is;isn’t B.Am;are C.Are;isn’t D.Are;aren’t 13.--- ________? --- No, it isn’t.A.Is this your aunt B.What’s this C.Who’s this D.Is he your son 14.The __________ is black and white.A.B.C.D.15.—What color is ____________ pen?—It’s black.A.a B.an C.the D./16.Lin Shuhao is in the _______.A.CCTV B.BBC C.NBA D.WTO17.—I don’t like the green coat.—____ the red one?A.What’s B.Where’s C.What about D.How 18.Thanks ______your family photos, they are very nice.A.to B.in C.for D.at 19.—Good afternoon, Grace!—______, Cindy!A.Good morning B.Good afternoon C.Good evening D.Good night 20.下列字母中含有/aɪ/读音的是:____________A.Aa B.Yy C.Jj D.Ee. 21.What color is the panda(熊猫)? It's ____________ .A.black B.white C.black and white D.green22.—I ______ a green pen. Is this yours, David?—No, it isn’t. Mine is blue.A.found B.lost C.had D.spell 23.—Thank you for your help.—________.A.Don’t thank B.You are welcome C.No thanks D.I like to help you 24.“不明飞行物”缩写为__________。
考试范围:xxx;满分:***分;考试时间:100分钟;命题人:xxx 学校:__________ 姓名:__________ 班级:__________ 考号:__________一、选择题1.—What color is it?— ______.A.It's ruler B.It's a ruler C.It's a red ruler D.It's red 2.—______ is your jacket? —It’s _____ green.A.What’s ; a B.What color ; aC.What color ; / D.What’s color ; /3.— What do you want to be in the future, Nick?— I want to be ________ pilot(飞行员) , it is ________ exciting(令人激动的,兴奋的) job. A.a, a B.a, an C.the, an D.a, the4.Is he your friend? Yes, ________.A.it is B.it isn’t C.he is D.he isn’t 5.Is that your __?A.a picture B.picture C.pictures D.nice pictures 6.表示“停车”的是__________.A.O B.P C.R D.M7.用来表示不明飞行物的是_______。
A.NBA B.BBC C.UFO8.The key is yellow .的同义句是:_____________A.The key yellow.B.The is a yellow key.C.This is a yellow key.9.下列字母的小写形式在四线三格中只占一格的是___________。
一、选择题1.It's ______ black. It's ______ black pen.A.a;a B.a;/ C./;a D./;/ 2.你见到你的好朋友时,你说:________.A.Good morning B.Nice to meet you C.Hi3.用来表示不明飞行物的是_______。
A.NBA B.BBC C.UFO4.—___are your new shoes(新鞋子)?—They(它们)are blue.A.What color B.How many C.How old D.Whose 5.在英语中,有____个元音字母,有____个元音音素。
A.5;12 B.10;12 C.5;20 D.5;8 6.The pen is blue.The ruler is _____ too (也).A.black B.yellow C.green D.blue 7._____表示衣服是大号,_______表示衣服是中号,_______表示小号。
A.L;M;S B.M;L;S C.L;S;M8.下列字母含有相同音素的一组是__________。
A.ABD B.AEO C.CET D.DFG 9.晚饭后,你散步时遇到你的一个朋友,你应说_________ 来打招呼。
A.Good morning B.Good afternoonC.Good evening D.Hello10.下列字母的笔顺标注不正确的是________。
A.B.C.D.11.在26个字母中,__________可以单独成词。
A.E;I B.A;I C.A;E D.I;R 12.She is a student and ______ name is Kate.A.she B.her C.hers D.his 13.Your mother’s brother is your ______.A.father B.grandfather C.cousin D.uncle 14.Mum, ______ my friends, Dale and Helen.A.this is B.they are C.he and she D.these are 15._______ are in the same class.A.Helen and I B.I and Helen C.I, you and she D.These 16.中国中央电视台的缩略形式是:______A.SDTV B.UFO C.NBA D.CCTV 17.—Spell it, please. — _________.A.It’s a book B.B-O-O-K C.Book D.BOOK18.Ted's key is not white. It's ____________ .A.yellow B.good C.fine D.English19.The __________ is black and white.A.B.C.D.20.—What _____ is it?—It's red.A.time B.this C.that D.color【参考答案】***试卷处理标记,请不要删除一、选择题1.C解析:C【解析】本题考查冠词。
考试范围:xxx;满分:***分;考试时间:100分钟;命题人:xxx 学校:__________ 姓名:__________ 班级:__________ 考号:__________一、选择题1.—What color is it?— ______.A.It's ruler B.It's a ruler C.It's a red ruler D.It's red 2.你见到你的好朋友时,你说:________.A.Good morning B.Nice to meet you C.Hi3.表示“停车”的是__________.A.O B.P C.R D.M4.—___are your new shoes(新鞋子)?—They(它们)are blue.A.What color B.How many C.How old D.Whose 5.在英语中,有____个元音字母,有____个元音音素。
A.5;12 B.10;12 C.5;20 D.5;8 6.—Is this_____?—Yes_______.A.orange ;it is B.an orange;it'sC.an orange;it is D.A or C7.英语中共有______ 个字母,其中______个元音字母。
A.26; 5 B.26; 6C.28; 5 D.28; 68.—Do you think the________of this skirt suits me?—Of course! You always look beautiful in red.A.size B.designC.price D.color9.—Do you like _________.—No.I like blue.A.orange B.apples C.flowers D.Milk10.—______ you say that again(再,又),please?A.Does B.Are C.ls D.Can 11.我们用________来表示“不明飞行物”。
考试范围:xxx;满分:***分;考试时间:100分钟;命题人:xxx 学校:__________ 姓名:__________ 班级:__________ 考号:__________一、选择题1.—What color is that car?—______________.A.It's redB.That's redC.That's a red carD.This is a red car2.— What do you want to be in the future, Nick?— I want to be ________ pilot(飞行员) , it is ________ exciting(令人激动的,兴奋的) job. A.a, a B.a, an C.the, an D.a, the 3.— ________ these her hats?— No, they ________.A.Is;isn’t B.Am;are C.Are;isn’t D.Are;aren’t 4.Is that your __?A.a picture B.picture C.pictures D.nice pictures 5.- __________, class! - Good afternoon!A.Good morning B.Good afternoon C.Good bye6.用来表示不明飞行物的是_______。
A.NBA B.BBC C.UFO7.在英语中,有____个元音字母,有____个元音音素。
A.5;12 B.10;12 C.5;20 D.5;88.下列字母的小写形式在四线三格中只占一格的是___________。
A.H B.K C.T D.Z9.I have _____orange.lt's ____ yellow orange.A.a;an B.an;a C.the;the D.an;an 10.英语中共有______ 个字母,其中______个元音字母。
一、选择题1.--- ________? --- No, it isn’t.A.Is this your aunt B.What’s this C.Who’s this D.Is he your son A解析:A【分析】【详解】句意:——这是你的阿姨吗?——不,不是。
考查一般疑问句。
Is this your aunt这是你的阿姨吗;What’s this这是什么;Who’s this 这是谁;Is he your son他是你的儿子吗?答案B,C是特殊疑问句,不能用Yes, No来回答,要排除;this在答语中可以用it替代,he在答语中必须还是he,故答案为A。
2.下列各组字母中含有相同音素的一组是 ____。
A.A, S B.H, I C.L, Y D.M, X D解析:D【解析】试题分析:本题中M和X都含有元音[e],故选D。
考点:考查字母发音3.—______ is your jacket? —It’s _____ green.A.What’s ; a B.What color ; aC.What color ; / D.What’s color ; /C解析:C【分析】【详解】句意:——你的夹克衫是什么颜色?——它是绿色。
考查情景交际。
A. What’s ; a 它是,一个;B. What color ; a 什么颜色,一个;C. What color ; /什么颜色,不填;D. What’s color ;/ 错误选项。
根据句意,问的是颜色,用what color,且颜色前不加冠词。
故选C。
4.表示“停车”的是__________.A.O B.P C.R D.M B解析:B【解析】P这个字母代表单词park,意思是停车。
故应选B。
5.This is______ruler ;_____ruler is black.A.a;the B.a;an C.an;the D.the;the A解析:A【解析】句意:这是一把尺子,这把尺子是黑色的。
考试范围:xxx;满分:***分;考试时间:100分钟;命题人:xxx 学校:__________ 姓名:__________ 班级:__________ 考号:__________一、选择题1.下列图片中表示“停车场”的是______。
A.B.C.2.Is that your __?A.a picture B.picture C.pictures D.nice pictures 3.你见到你的好朋友时,你说:________.A.Good morning B.Nice to meet you C.Hi4.英语字母共有_______个,其中含有元音字母________个。
A.26 ,5 B.26 ,3 C.24 ,5 D.24 ,35.I have a nice ruler.___ ruler is black. It´s very expensive(昂贵)A.My B.I C.Me D.Mice 6.—Is this_____?—Yes_______.A.orange ;it is B.an orange;it'sC.an orange;it is D.A or C7.I have _____orange.lt's ____ yellow orange.A.a;an B.an;a C.the;the D.an;an 8.—______ you say that again(再,又),please?A.Does B.Are C.ls D.Can9.下列字母和see读音相同的是A.C B.G C.J10.The _____is black and white.A.B.C.D.11.--- ________? --- No, it isn’t.A.Is this your aunt B.What’s this C.Who’s this D.Is he your son 12.—What’s this in English? — a ruler.A.It’s B.Its C.This is D.This’s 13.Is Guo Peng your brother? ________.A.Yes,it is B.No,it isn’t C.Yes, she is D.No,he isn’t14.在26个字母中,__________可以单独成词。
A.E;I B.A;I C.A;E D.I;R15.Lin Shuhao is in the _______.A.CCTV B.BBC C.NBA D.WTO 16.Thanks ______your family photos, they are very nice.A.to B.in C.for D.at17.—______ —It’s orange.A.What’s this?B.What color is it? C.How are you? D.Spell it, please! 18.—______ is your pencil box?—It’s blue and white.A.How B.What color C.What D.When19.It's ____________ orange. It's ____________ orange.A.a;a B.an;a C.a;an D.an;/20.We can see ____________ “o”and ____________ “u”in the word“you”.A.a;a B.an;an C.a;an D.an;a 21.Ted's key is not white. It's ____________ .A.yellow B.good C.fine D.English 22.—I ______ a green pen. Is this yours, David?—No, it isn’t. Mine is blue.A.found B.lost C.had D.spell 23.—Are ______ your pencils?—Yes, ______ are.A.this; it B.those; they C.these; those D.those; these 24.“不明飞行物”缩写为__________。
A.CCTV B.UFO C.NBA D.HB25.下列全是元音字母的一组是__________。
A.efnud B.aiohy C.uieao D.eyico 26.Your mother’s brother is your ______.A.father B.grandfather C.cousin D.uncle【参考答案】一、选择题1.C2.B3.C4.A5.A6.D7.B8.D9.A10.A11.A12.A13.D14.B15.C16.C17.B18.B19.D20.D21.A22.A23.B24.B25.C26.D【参考解析】一、选择题1.C解析:C【解析】句意:下列图片中表示“停车场”的是P。
park意思为“公园”,“停车场”,其缩写为P,故选C。
2.B解析:B【详解】句意:那是你的画吗?因为空格前有your,所以不能用冠词a,因为that是单数,所以这里的picture 也用单数。
故选B。
3.C解析:C【解析】见到朋友不一定是在早晨,故A答案不合理;Nice to meet you用于初次与他人见面等非正式场合,熟人之间打招呼常说Hi或Hello,故答案为C。
4.A解析:A【解析】英语字母有26个,其中元音字母有5个,他们是a, e ,i, o, u。
5.A解析:A【解析】句意:我有一把漂亮的尺子,我的尺子是黑色的。
它很昂贵。
A. My我的,形容词性物主代词;B. I我,主格;C. Me我,宾格;D. Mine我的,名词性物主代词。
形容词性物主代词修饰名词,用作定语,故答案为A。
点睛:形容词性物主代词相当于形容词,置于名词之前作定语,如:my father, his book。
名词性物主代词相当于名词,不能置于名词前,说话时要加重语气。
例如:A: Is this your green pen? B: No, it isn’t. The blue pen is mine.6.D解析:D【解析】句意:这是橙色的吗?(这是一个桔子吗?)——是的,它是。
orange有两个意思,当名词讲是“桔子”,当形容词讲是“橙色的”。
故答案为D。
7.B解析:B【解析】句意:我有一个桔子,它是一个黄色的桔子。
a/an表示泛指,the表示特指。
a用于辅音音素前,an用于元音音素前,orange ['ɒrɪn(d)ʒ]以元音音素开头,前面要用不定冠词an;yellow ['jeləʊ]以辅音音素开头,前面要用不定冠词a,故答案为B。
8.D解析:D【解析】句意:你能把它再说一遍吗?Does,Is只能用于第三人称单数,you是第二人称,首先排除A,C;情态动词Can后跟动词原形,Are后面是不可以跟动词原形的,故答案为D。
9.A解析:A【解析】see的音标为[si:];A. C[si:];B. G [dʒi:] ;C. J [dʒei] 故答案为A。
10.A解析:A【解析】句意:这只熊猫是黑白相间的。
结合图片内容可知,A. panda;B. sun C. moon;D. watermelon。
熊猫的全身是黑白相间的,故答案为A。
11.A解析:A【分析】【详解】句意:——这是你的阿姨吗?——不,不是。
考查一般疑问句。
Is this your aunt这是你的阿姨吗;What’s this这是什么;Who’s this 这是谁;Is he your son他是你的儿子吗?答案B,C是特殊疑问句,不能用Yes, No来回答,要排除;this在答语中可以用it替代,he在答语中必须还是he,故答案为A。
12.A解析:A【详解】句意:——这个用英语怎么说?——它是一个尺子。
考查特殊疑问句的回答。
It’s它是;Its形容词性物主代词,它的;This is这是;This’s这是,根据回答this/that的疑问句,要用it来回答,排除C和D,由所给空后面的a ruler可知,应该是它是一个尺子,排除B,故选A。
13.D解析:D【解析】句意:——郭鹏是你的弟弟吗?——不,他不是。
Guo Peng是男孩的名字,在答语中要用he替代,故答案为D。
14.B解析:B【详解】在26个字母中,字母a可以单独作单词a,不定冠词,意为“一(人、事、物)”;字母I可以单独作单词I,意为“我”,人称代词主格,故选B。
15.C解析:C【解析】句意:林书豪参加美国职业篮球联赛。
CCTV中国中央电视台; BBC 英国广播公司;NBA 美国职业篮球联赛;WTO世界贸易组织。
因为林书豪在美国打篮球,因此参加的是美国职业篮球联赛。
故选C。
16.C解析:C【详解】句意:谢谢你的家庭照片,它们非常漂亮。
考查介词辨析题。
thank不和in及at搭配,可排除BD两项。
thanks to幸亏,后接代词;thank for为……而感谢,后接名词或动名词。
根据句意语境,可知thanks to不合句意,故选C。
17.B解析:B【详解】句意:——它是什么颜色?——它是橘黄色的。
What’s this? 这是什么? What color is it? 它是什么颜色?How are you? 你好吗? Spell it, please!请拼读。
根据It’s orange.可知此处对颜色提问,故选B。
【点睛】orange表示“桔子”,是可数名词,用不定冠词an修饰;表示“橘黄色”,是可数名词,用零冠词修饰。
18.B解析:B【解析】【详解】句意:——你的铅笔盒是什么颜色的?——它是蓝白色的。
A. 怎么样;B. 什么颜色;C. 什么;D. 什么时间。
根据回答It’s blue and white.可知提问颜色,故选B。
19.D解析:D【解析】【详解】句意:它是一个橘子。
它是橙色的。
orange是以元音音素开头的单词,其前应用不定冠词an,排除A/C两项;第二个空后也是orange,因第一句已经介绍了“它是一个橙子”,因此第二句中的orange 意为“橙色的”,其前不用冠词。
故选D。
20.D解析:D【解析】【详解】句意:我们可以在“你”一词中看到一个字母“o”和一个字母“u”。
字母o的读音为:[əʊ];字母u的读音为:[juː]。
a用于辅音音素前;an用于元音音素前。
因此一个字母o,用an “o”表示;一个字母u,用a “u”表示。