最新人教版五年级上册英语第四单元测试试题以及答案(3套题)
五年级上册英语第四单元测试试题一、按要求完成。
(1—5题中英互译,6—8加ing)1.hold on_________2.speak to_________3see you later__________ 4.接电话________________5.写信______________6.swim_________7.make_________8.play__________二、找出不的同类的单词。
1、()A:eat B:swimming C:skating D:playing2、()A:how B:what C:which D:watch3、()A:bread B:lunch C:dinner D:breakfast4、()A:go B:see C:dish D:play5、()A:watch TV B:at noon C:do homeworkD:go hiking三、选择适当的词填空。
1、I can________(write,writing).2、They usually_______(go,going)to school at7:00.3、She is_______(wash,washing)clothes.4、What do you______(do,doing)on Sunday.5、Let’s_______(watch,watching)TV.6、I am________(come,coming).四、选择,并将序号写在括号里。
1、()I am________a letter.A、writeB、writingC、writeing2、()---When do you watch TV?---I ususlly watch TV______seven o’clock.A、inB、onC、at3、()Look,she is____,she can_____fast.A、run,runingB、runing,runC、running, run4、()____you____the dishes now?A、Are…doingB、Do…doingC、Does…do5、()This is____e-mail.A、a.B、anC、the6、()He usually____hiking,I often go hiking,____.A、go,eitherB、goes,tooC、goes,either7、()---What____your parents doing? ---They_____cooking dinner.A、are,theyB、is,theyC、are,we五、选择正确的答句,并将序号写在括号里。
()1.What do you do on the weekeed?()2.What are you doing?()3.What is your father doing?()4.What is your grandma doing?()5.Can I speak to your mother,please?()6.There is a call for you!A:Sure,hold on please.B:She is cooking dinner.C:I’m speaking to you.D:Thank you.E:He’s reading a newspaper.F:I play the piano and watch TV.六、连词成句。
1、grandpa,writing,is,in,a letter,the, room(?)___________________________________________2、cooking,My,is,dinner,mother (.)____________________________________________3、speak,mom,to,I,Can,your, please(?) ______________________________________________4、want,do,to,go,you,to,the,zoo(?) _____________________________________________5、call,for,a,is,you, there(.)______________________________________________七、按要求完成下列问题。
1、I am playing football.(改为一般疑问句)________________________2、He is planting trees.(划线部分提问)______________________3、She is flying kites.(改为否定句)__________________________4、What time is it?(实际回答)________________________________5、I’m doing homework now.(用she改写句子)______________________6、Are you cooking dinner?(实际回答)___________________________7、What are you doing?(实际回答)_____________________________八、阅读理解用“T”或“F”表示。
My name is Tim.I’m a student in Class Two,Grade Five.I am twelve.Now let me tell you something about my family.My father is a doctor. He is writing an e-mail in the study.My mother a is a teacher in a middle school.She is cooking dinner in the kitchen.What am I doing?I am doing my homework, today is Friday,We have a lot of homework to do. after homework,I will play the piano.I like playing the piano very much.()1、Tim is a student in Class Five,Grade Two.()2、Tim’s father is a doctor.He is writing an e-mail.()3、Tim’s mother is a teacher.She is washing clothes.()4、Tim is playing the piano.()5、Tim likes playing the piano.五年级上册英语第四单元测试试题一、写出下列词组:1.使用电脑______________2.摆餐具________________3.打扫卧室_____________4.扫地________________5.做饭__________________6.在星期二___________________7.看电视______________8.玩电脑游戏_____________________9.看书________________10.洗碗碟________________________二、用所给的词的正确形式填空:1.What can you_________(do)?2.I can___________(clean)the classroom.3.My sister can do many things at home,so she is very ____________(help).4.Beef________(be)my favourite.5.My mother can cook the___________(meal).三、从ABC三个选项中选择合适的答案,把序号填写在题前括号内。
() 1._____can you do?A.WhatB.WhoC.Where() 2.---Can you put away the clothes?---________. A.I can do the dishes. B.Yes, I do.. C.Yes,I can.() 3.________you helpful at home?.A.DoB.AreC.Can( ) 4.I can empty the_______.A.flowersB.dishes.C.trash() 5.I am a good boy.I can______my parents(父母)do some house work..A.helpfulB.help.C.helping()6.What would you like__________dinner?A.ofB.forC.to()7.We can help________.A.herB.sheC.he()8.--Can your father play basketball? ----_______________.A.Yes,she canB.Yes,he can'tC.No,he can't.()9.We have Chinese and math ______________Wednesdays. A.of B.on C.to()10.----Who can do the housework? -------____________________.A.Yes,she can.B.No,I canC.I can四、将这些不讲究秩序的单词排列成句。
注意横线后的标点哦!1.Sarah,meals,can,the,cook, _________________________________________.2.helpful,you,at,are,home ________________________________________?3.bedroom,can,I,the,clean ________________________________________.4.at,home,do,can,you,what ________________________________________?5.can,the,use,you,computer ________________________________________?五、从B栏中找出A栏行对应答语,将序号写在提前的括号内。
人教版五年级英语上册第四单元试卷及答案
五年级英语上册第四单元试卷(完成时间:40分钟) 成绩:_______________听力部分(40分)一、听录音,选出你所听到的单词。
每小题听两遍。
(5分) ( )1.A. book B. cook C. cool ( )2.A. song B. sing C. send ( )3.A. football B. basketballC. balloon ( )4.A. food B. foot C. room( )5.A. danceB. drawC. down二、听录音,用阿拉伯数字给下列各图标序号。
每小题听两遍。
(10分)( ) ( ) ( ) ( ) ( )( ) ( ) ( ) ( ) ( ) 三、听录音,判断下列句子与你所听到的意思是否相同(T or F ),每小题两遍。
(10分)( )1.We’ll have an English party next Tuesday. ( )2.Mary can speak English and Chinese. ( )3.Bob can’t do any kung fu. ( )4.What can Jack do for the party? ( )5.Amy can make delicious food.四、听录音,选择最佳答语。
每小题两遍。
(10分)( ) 1. A. Yes, I can. B. I can read books. ( ) 2. A. I can play the piano. B. I play the piano. ( ) 3. A. Yes, he does. B. No, he can’t.( ) 4. A. They can do some kung fu . B. He can do some kung fu. ( ) 5. A. No problem. B. No, I can. 五、听录音,填上所缺单词(5分)1. Sarah can cartoons.2. I can _____ English.3. Can you do any for the party?4. Amy can ping-pong, but she can’t ___________.笔试部分(60分)一、语音 (一)选出每组单词中划线部分发音不同于其他单词的一项。
人教精通版五年级英语上册Unit 4综合达标测试卷含答案
人教精通版五年级英语上册Unit 4综合达标测试卷时间:40分钟满分:100分听力(30分)笔试(70分)总分题号一二三四五六七八九十十一得分第一部分听力(30分)一、听句子,请根据听到的内容将下列人名与其对应的场所连线。
(5 分)Alice Tom Sam Tony Mary二、听句子,选出与你所听到的内容一致的句子。
(5 分)( )1. A. I study in a primary school.B. I study at Sunny School.( )2. A. My mother works in a big restaurant.B. My mother works in a small restaurant.( )3. A. My grandmother is a worker.B. My grandfather is a worker.( )4. A. My uncle is a manager in a big company.B. My uncle is a teacher in a school.( )5. A. We are a happy family.B. We have a happy family.三、听问句,选择正确的答语。
(10 分)( )1. A. I work in a shop. B. She works in a hospital. ( )2. A. She is a manager. B. He is a manager.( )3. A. He comes from China. B. I’m from China.( )4. A. They are doctors. B. My mother is a doctor.( )5. A. No, she is a nurse. B. Yes, she is.四、听短文,将听到的词语写在横线上,一空一词。
人教精通版五年级英语上册Unit 4综合测试卷含答案
人教精通版五年级英语上册Unit 4综合测试卷时间:40分钟满分:100分题号一二三四五六七八九十十一十二总分得分听力部分(30分)一、听单词或短语,用A、B、C给下列图片排序。
(5分)1.()()()2.()() ()3.()()()4.()()()5.()()()二、听句子,选择正确的答语。
(5分)() 1. A. He's thirty. B. He's at home.C. He works in a hospital.() 2. A. Yes, she is. B. Yes, she does. C. Yes, she can. () 3. A. I work in a restaurant.B. I love my job. C. Me, too.() 4. A. They're coming. B. He's a worker. C. They're workers. () 5. A. Yes, he can. B. Sure! C. No, I'm not. 三、听对话和问题,选择正确答案。
(10分)() 1. A. He's a worker. B. He works in Wanda Cinema.C. Sorry, we don't know.() 2. A. She studies at Xiaohua School.B. She's twelve.C. She's young.() 3. A. He's a reporter. B. He works at CCTV. C. He's active. () 4. A. China. B. Britain. C. America.() 5. A. Four. B. In a hospital. C. A doctor.四、听短文,判断句子正(T)误(F)。
【英语】最新人教精通版小学五年级英语上册第四单元检测试卷有参考答案
【关键字】英语最新人教精通版小学五年级英语上册第四单元检测试卷有参考答案本套XX年人教精通版小学五年级英语上册第四单元自我检测考试卷免费下载由绿色圃中小学教育网整理,所有试卷与小学英语教材大纲同步,试卷供大家免费使用下载打印。
因小学英语试卷复制时部分内容如图片、答案等无法直接显示,请用户直接到帖子下面(往下拉)下载WORD编辑的DOC附件下载浏览或打印!如有疑问,请联系网站底部工作人员!试卷内容预览:第四单元自我检测听力部分(40分)一、选出听到的单词。
(15分)()B.son C.cup()B.vet C.driver()B.help C.hello() B.actress C.act()B.kind C.bank2、听录音,给下列各图用数字排序。
(10分)()()()()三、根据所听到的内容填写单词。
(15分)1.What does his ________do?2.I ________ my mother.3.This ________ my uncle.4.She ________ in a hospital.5.Is your father a ________?笔试部分(60分)四、选出画线部分发音不同的一项。
(5分)()B.vet C.pet()B.but C.you()B.wheat C.bread()B.late C.help()B.love C.home五、选出不同类的一项。
(5分)()B.vet C.aunt()B.driver C.father()B.dog C.cat()B.in C.on()B.work C.hotel六、看图写单词。
(首字母已给出)(6分)1.g____________________ 2.g____________________3.f____________________4.m____________________5.s____________________6.d____________________七、英汉互译。
人教PEP版五年级英语上册Unit 4测试卷含答案
人教PEP版五年级英语上册Unit 4测试卷满分:100分试卷整洁分:2分题号一二三四五六七八九十十一十二总分得分一、听录音,选出你所听到的单词。
每小题听一遍。
(5分)()1.A.book B.cook C.look ()2.A.send B.sing C.swim ()3.A.sports B.basketball C.football ()4.A.funny B.any C.every ()5.A.dance B.day C.dad 二、听录音,选出与所听内容相符的图片。
每小题听两遍。
(5分)()1.A. B. C.()2.A. B. C.()3.A. B. C.()4.A. B. C.()5.A. B. C.三、听录音,补全句子。
每小题听两遍。
(10分)1.Let’s ________ ________.2.We’ll have a party ________ ________.3.I can ________ ________.4.Can you ________ ________ kung fu?5.________ ________.四、听录音,判断下列句子正(T)误(F)。
短文听两遍。
(10分)()1.It’s Sunday.()2.Sarah can dance.()3.Amy can sing.()4.I can play the pipa()5.We are very happy.五、判断下列每组单词画线部分的发音是(T)否(F)相同。
(5分)()1.too zoo()2.good cool ()3.look cook ()4.foot balloon ()5.book noodles六、选出下列每组单词中不同类的一项。
(5分)()1.A.sing B.dance C.song()2.A.cartoon B.basketball C.ping-pong ()3.A.party B.send C.email()4.A.wonderful B.sweet C.party()5.A.problem B.want C.learn七、单项选择。
人教PEP版五年级英语上册Unit 4达标测试卷含答案
人教PEP版五年级英语上册Unit 4达标测试卷时间: 40分钟满分: 100分听力(30分) 笔试(70分)总分题号一二三四五六七八九十十一得分第一部分听力(30分)一、听句子, 选择你所听到的单词。
(5分)()1. A. foot B. food C. good()2. A. book B. look C. cook()3. A. cooks B. carrots C. cartoons()4. A. learn B. problem C. next()5. A. song B. sing C. swim二、听对话, 判断下列图片与所听内容是(T)否(F)相符。
(5分)1. 2. 3. 4. 5.() () () () () 三、听对话, 选出正确答案。
(10分)()1. Who can play ping-pong in the class?A. Chen Jie.B. Kitty.C. Zhang Peng.()2. What can Mike do?A. He can sing Chinese songs.B. He can sing English songs.C. He can sing and dance.()3. Jack can ________ for the party.A. play the pipaB. play the erhuC. sing an English song()4. Can Robot play chess?A. No, it can't.B. Yes, it can.C. It's a computer.()5. What can Zhang Peng do?A. He can play basketball.B. He can swim.C. He can play ping-pong.四、听短文, 判断句子正(T)误(F)。
(10分)()1. Wu Binbin is ten years old.()2. Wu Binbin can sing and dance.()3. Wu Binbin's sister is eight years old.()4. Wu Binbin's sister can cook the meals.()5. Wu Binbin's brother can play the pipa.第二部分笔试(70分)五、读一读, 根据句意和图片提示写单词, 补全句子。
PEP人教版五年级上册英语Unit4单元测试卷(含答案)
五年级人教上册精品测试卷Unit 4 一、选出每组单词中不同类的一项。
( ) 1. A. do B. play C. kung fu( ) 2. A. pipa B. erhu C. football( ) 3. A. wonderful B. cartoon C. picture( ) 4. A. song B. draw C. dance( ) 5. A. Tuesday B. Wednesday C. birthday一、英汉互译。
1. 唱英文歌曲_____________________2. no problem______________3.弹琵琶_______________________4. play basketball ___________5.说英语_________________________6. send an e-mail____________7.练武术_________________________8. clean the classroom__________9. 画漫画_________________________10. make a robot___________三、单项选择。
( ) 1. My brother can ________ kung fu.A. playB. doC. plays( ) 2. --Can you clean the room? --_________.A. Yes, you can.B. Yes, I can.C. No, I can( ) 3. They will have ________ English party tomorrow.A. aB. anC. /( ) 4. Li Ming can play________basketball.A. aB. theC. /( ) 5. Don’t throw me ________ the lake, please.A. intoB. toC. in( ) 6. My brother can sing songs, but he _______ dance.A. canB. isn’tC. can’t( ) 7. My grandpa can _______ English and Chinese.A. haveB. speakC. speaks( ) 8. Today we’ll learn ______ kungfu, can you do ______ kung fu?A. any, someB. some, someC. some, any( ) 9. --Can you _______? --No, I ________.A. dance, canB. dances, can’tC. dance, can’t( ) 10. --What can you do _______ the party? --I can play ______ pipa.A. for, /B. for, theC. at, /四、看图,完成下列对话。
PEP人教版五年级上册英语第四单元练习题及答案
PEP人教版五年级上册英语第四单元练习题及答案五年级(上)第四单元第1课时当堂达标题Unit 4 What can you do?Part A Let’s XXXⅡ.根据情选择正确的答案,将其序号填入题前括号内。
1.()当你想问对方会做什么时,应说:A。
What can you do。
B。
What can you do for the party?C。
What can he do?2.()当你想告诉对方你会唱中文歌时,应说:A。
I XXX.B。
I can play the pipa.C。
I XXX.Ⅲ.给下列句子排序。
A.I can dance。
What can John do?B.What can you do。
Sarah?C.I can sing。
How about you。
Chen Jie?D.He can draw pictures。
What can Amy do?E.She can draw pictures.1.________2.____ _C ___3._________4.________5._________IV.浏览漫笔,按照漫笔内容完成句子。
We’ll have a party this Friday。
The children are helpful。
Tom and John can clean theclassroom。
Lucy can sing English songs。
Lily can dance。
Kate can draw cartoons.Jimmy can do some kung fu.1.What can Tom and John do for the party.Theycan________________________________________________.2. What can Lucy do?Shecan___________________________________________________ .3.What can Lily do?Shecan___________________________________________________.14.What can Kate do?Shecan___________________________________________________ .5.What can Jimmy do?Hecan___________________________________________________.五年级(上)第四单位第1课时当堂达题目谜底Unit 4 What can you do?Part A Let’s XXXⅡ.根据情选择正确的答案,将其序号填入题前括号内。
2022年新人教版PEP五年级英语上册Unit 4学习质量检测卷(附参考答案)
2022年新人教版PEP五年级英语上册Unit 4学习质量检测卷一、单选题(共20分)1.He can play ______ basketball, but he can’t play ______ pipa. ()A./; the B.the; /C.the; the 2.Mike can ______ the room. ()A.cleans B.cleaning C.clean 3.—Can you play ________ pipa? ()—No, I can’t.A.the B.an C./4.Tim can play ______ basketball and Tom can play ______ erhu. ()A.the; /B.a; an C./; the5.______ is not a Chinese traditional musical instrument (乐器). ()A.Piano B.Pipa C.Guzheng 6.My mother can cook well. But I ______. ()A.can’t B.aren’t C.can 7.—Can you do ______? ()—Yes, I can.A.any kung fu B.some kung fu C.a kung fu 8.Amy can play ______ pipa. Oliver can play ______ basketball. ()A.the; the B./; the C.the; /9.—______? ()—Sarah and Chen Jie.A.Where can dance B.Who can dance C.What can dance 10.—What can Sarah do? ()—She can ______.A.play the pipa B.play the football二、中英互译:单词/短语(共15分)英汉互译。
小学五年级上册P卷英语第4单元期测验题(含答案含解析)
小学五年级上册英语第4单元期测验题(含答案含解析)英语试题一、综合题(本题有50小题,每小题2分,共100分.每小题不选、错误,均不给分)1.Which of these animals can fly?A. ElephantB. BirdC. FishD. Dog2.What do we use to open a door?A. KnifeB. KeyC. ForkD. Plate3.What time of day do we usually sleep?A. MorningB. NoonC. EveningD. Night4.Yesterday, Lily and Tom ______ (decide) to go to the zoo. They ______ (take) a bus to get there. When they ______ (arrive), they ______ (see) many animals like lions, elephants, and monkeys. They ______ (be) very excited. After visiting the animals, they ______ (buy) some snacks and ______ (sit) on a bench to rest.5.What is the opposite of big?A. SmallB. TallC. FatD. Long6.Which of these do you use to eat soup?A. SpoonB. ForkC. KnifeD. Platest Saturday, I __________ (1) with my family to the zoo. It __________ (2) a very exciting day. We __________ (3) many animals, like lions, tigers, and elephants. I__________ (4) a picture of the giraffes because they __________ (5) so tall. After that, we __________ (6) lunch in the zoo’s restaurant. It __________ (7) a great day, and we __________ (8) to go again next year.8.My dad ______ (work) in an office. He ______ (leave) for work at 8:00 every morning. After work, he sometimes ______ (go) to the gym to exercise. I ______ (like) to spend time with him, so on weekends we ______ (play) basketball together.9.My sister __________ (play) the piano very well. She __________ (take) lessons every week. Yesterday, she __________ (practice) a new song, and it __________ (sound) beautiful. I __________ (wish) I __________ (be) as good as her at playing musical instruments.10.I am planning to have a __ on my birthday. I invited all my friends to come and celebrate. There will be a big __ with candles on it. We are going to play games like __ and __. After the games, we will eat __ and have lots of fun!11.David and his friends are playing basketball. They are trying to score a __________ by shooting the ball into the __________. David passes the ball to his friend, who makesa great __________. Everyone cheers because they scored a point.12.I’m learning to play the ______. It’s difficult, but I enjoy it. My teacher is very kind and helps me practice. Sometimes, my friend Sarah comes over to listen to me play. She plays the ______ very well. After practicing, we talk about our favorite ______.13.Which of these is a color?A. PinkB. BallC. SpoonD. Plate14.Lily is going to a birthday party. She brings a __________ and a __________ for the birthday girl. The party is very __________, and everyone is having fun. They play __________ and eat a big cake.15.Which one is a shape?A. CircleB. GreenC. HappyD. Book16.Which of these is a part of your body?A. HeadB. ChairC. TableD. Book17.You see a man on the street with a uniform, holding a big bag and delivering letters. What is his job?A. TeacherB. PostmanC. DoctorD. Driver18.Today, the weather is __________. The sky is __________, and the sun is__________. I like days like this because I can go outside and __________. In the afternoon, I will go to the __________ with my friends and play __________. We like to __________ and __________ together. After that, we will eat __________ and drink__________.19.Which one is an insect?A. DogB. AntC. CatD. Bird20.Which of these is a season?A. SummerB. TableC. PlateD. Spoon21.My brother __________ (be) very good at sports. He __________ (play) basketball and __________ (swim) every weekend. Last Saturday, he __________ (play) basketball with his friends, and on Sunday, he __________ (swim) at the pool.22.Every morning, I _______ (wake) up at 6:30 AM. After I _______ (get) dressed, I _______ (eat) breakfast. I usually _______ (have) toast and juice. Then, I _______ (go) to school. My best friend _______ (wait) for me at the bus stop. We _______ (talk) about our homework and plans for the day. I _______ (arrive) at school at 7:30.23.How many hours are there in a day?A. 12B. 18C. 24D. 3024.Which one is a holiday?A. ChristmasB. MondayC. SummerD. Winter25.We _______ (go) on a field trip last week. We _______ (visit) a farm, and we_______ (see) many animals, like cows and chickens. It _______ (be) a fun experience.26.During the summer holidays, I __________ (1) to visit my cousins in the countryside. We __________ (2) a lot of fun together. We __________ (3) in the river, picked fruits from the trees, and __________ (4) many pictures of the beautiful nature. I __________ (5) to go again next summer.27.Which one is used to clean the table?A. NapkinB. KnifeC. SpoonD. Fork28.Which of these is used to write on a board?A. PenB. ChalkC. SpoonD. Knife29.We _______ (plan) a surprise party for my friend Mark last week. We _______ (decorate) his house with balloons and streamers. On the day of the party, we _______ (invite) all of Mark’s friends to come. When Mark _______ (arrive), we _______ (yell), “Surprise!” He _______ (feel) very happy and _______ (thank) us. After the party, we _______ (take) a group photo to remember the fun day.30.What is the opposite of "big"?A. SmallB. TallC. ShortD. Heavy31.Which is the plural form of "child"?A. childsB. childrenC. childesD. childrens32.Which one is a body part?A. LegB. ChairC. TableD. Spoon33.Emily is very good at playing sports. She loves to __________ (1) and __________ (2). She practices every day to get better. Emily is also good at __________ (3), and she plays in the school team. After practice, she likes to drink __________ (4) and eat__________ (5).34.Tom and his friends are preparing for their school play. Tom is going to play the role of a __________, while his friend Lily will be a __________. They practice their lines in the __________, making sure to speak loudly and clearly. On the day of the play, they wear their costumes and perform in front of the __________. Everyone enjoys the show!35.What is the opposite of "happy"?A. SadB. TallC. HeavyD. Warm36.Which of these is a type of tree?A. PineB. DogC. SpoonD. Plate37.I __________ (love) to play video games. My favorite game __________ (be) "Minecraft". Every day, I __________ (play) it after school. Sometimes, my friends__________ (join) me, and we __________ (build) things together. It __________ (be) so much fun!38.Jack is at the zoo. He sees a __________ (1) eating leaves from a tall tree. Nearby,a __________ (2) is playing with a ball. Jack also spots a __________ (3) swimming in the water, splashing around with its wings.39.Which of these is a sport?A. paintingB. soccerC. runningD. singing40.My friend __________ (invite) me to her birthday party last week. It __________ (be) a great party. We __________ (play) games and __________ (eat) a delicious cake.41.Tom and I are going to the __ tomorrow. We are going to __ some pictures. I will bring my __ because I want to take photos of the beautiful landscape. Tom is bringing his __ to help carry our things. We plan to stay there until __ in the evening. We will then go to the __ to eat.42.Which of these is a season of the year?A. JanuaryB. SummerC. TuesdayD. Day43.Which one is a body part?A. HandB. PlateC. SpoonD. Chair44.Which one is a body part?A. BookB. HandC. CarD. Table45.What is the plural of "child"?A. ChildsB. ChildesC. ChildrenD. Childer46.This is _______ book.A. MaryB. MarysC. MarysD. Maries47.This morning, I __________ (1) my breakfast at 7:30. My father __________ (2) me to school, and we __________ (3) there at 8:00. We __________ (4) to school every day, but sometimes my mother __________ (5) us if my father __________ (6) busy.48.What shape is a ball?A. SquareB. RoundC. TriangleD. Rectangle49.This is my _____.A. fatherB. fathersC. fathersD. fatherss50.Which of these is a transportation vehicle?A. CarB. ChairC. AppleD. Book(答案及解释)。
