最新小升初英语易错题

小升初英语介词易错点辨析单选题50题1. I often play football ______ the afternoon.A. atB. inC. on答案：B。

本题考查时间介词的用法。

“in the afternoon”表示“在下午”，是固定搭配。

“at”通常用于具体的时刻，如“at 3 o'clock”；“on”用于具体的某一天或某一天的上午、下午、晚上，如“on Monday afternoon”。

本题说的是“经常在下午踢足球”，是泛指的下午，所以用“in”。

2. My birthday is ______ May 1st.A. atB. inC. on答案：C。

“on”用于具体的日期，“May 1st”是具体的日期“五月一日”，所以用“on”。

“at”用于具体时刻，“in”用于月份、季节、年份等较大的时间范围。

3. We have a party ______ night.A. atB. inC. on答案：A。

“at night”是固定短语，表示“在晚上”。

“in”和“on”都不与“night”这样搭配。

4. He gets up ______ six o'clock every morning.A. atB. inC. on答案：A。

“at”用于具体的时刻，“six o'clock”是具体的时刻“六点”，所以用“at”。

“in”用于时间段，“on”用于具体日期。

5. They have a class meeting ______ Monday morning.A. atB. inC. on答案：C。

“on”用于具体的某一天的上午、下午或晚上，“Monday morning”是具体的“周一上午”，所以用“on”。

“at”用于具体时刻，“in”用于不具体的时间段。

6. There is a big tree ___ the house.A. in front ofB. in the front ofC. at front ofD. at the front of答案：A。

小升初英语语音易错点辨析单选题40题1. Which word has a different vowel sound in the middle?A. catB. hatC. gateD. mat答案：C。

A 选项“cat”、B 选项“hat”和D 选项“mat”中的元音字母“a”都发/æ/的音，而C 选项“gate”中的“a”发/ei/的音。

2. The vowel sound in "bed" is different from that in:A. redB. penC. meD. leg答案：C。

A 选项“red”、B 选项“pen”和D 选项“leg”中的元音字母“e”都发/e/的音，而C 选项“me”中的“e”发/i:/的音。

3. Which word has the same vowel sound as "cake"?A. faceB. bagC. capD. dad答案：A。

A 选项“face”和“cake”中的元音字母“a”都发/ei/的音，B 选项“bag”、C 选项“cap”和D 选项“dad”中的“a”发/æ/的音。

4. The vowel sound in "hot" is not like that in:A. dogB. notC. noteD. lot答案：C。

A 选项“dog”、B 选项“not”和D 选项“lot”中的元音字母“o”都发/ɒ/的音，而C 选项“note”中的“o”发/əʊ/的音。

5. Which word has a different vowel sound from the others?A. cupB. butC. busD. use答案：D。

A 选项“cup”、B 选项“but”和C 选项“bus”中的元音字母“u”都发/ʌ/的音，而D 选项“use”中的“u”发/ju:/的音。

小升初英语常见易错题精选单选题80题1. I have a ______ dog. It's very cute.A. white smallB. small whiteC. big blackD. black big答案：B。

本题考查形容词的顺序。

多个形容词修饰名词时，其顺序是：大小在前，颜色在后。

A 选项顺序错误，C 选项“big black”意思是“大的黑色的”，不符合“cute（可爱的）”的描述，D 选项顺序也错误。

2. My mother is cooking in the ______.A. living roomB. bedroomC. kitchenD. bathroom答案：C。

“cooking（（做饭）”通常在“kitchen（（厨房）”进行，A 选项“living room（（客厅）”，B 选项“bedroom（（卧室）”，D 选项“bathroom （浴室）”都不是做饭的地方。

3. I can see many ______ on the farm.A. sheepB. sheepsC. sheepesD. sheep's答案：A。

“sheep（（绵羊）”的复数形式还是“sheep”，B、C 选项形式错误，D 选项“sheep's”是“绵羊的”，不是复数形式。

4. The ______ are red. I like them.A. appleB. applesC. an appleD. one apple答案：B。

根据“are”可知主语是复数，A 选项“apple”是单数，C 选项“an apple”一个苹果，是单数，D 选项“one apple”一个苹果，也是单数。

5. He is very ______. He always helps others.A. kindB. strictC. funnyD. young答案：A。

“helps others（帮助别人）”说明他是“kind（善良的，友好的）”，B 选项“strict（严格的）”，C 选项“funny（有趣的）”，D 选项“young（年轻的）”都不符合“帮助别人”这个描述。

小升初英语单项选择易错点单选题50题答案解析版1.There are many________on the desk.A.bookB.booksC.a bookD.bookes答案：B。

“many”修饰可数名词复数，“book”的复数是“books”。

A 选项是单数形式；C 选项“a book”也是单数；D 选项复数形式错误。

2.This is________bag.A.LilyB.LilysC.Lily'sD.Lilys'答案：C。

表示“某人的”要用名词所有格，Lily 的所有格是Lily's。

A 选项是人名；B 选项形式错误；D 选项形式错误。

3.I have two________.A.pencil boxB.pencil boxesC.pencils boxD.pencils boxes答案：B。

“pencil box”的复数形式是“pencil boxes”。

A 选项是单数形式；C 选项形式错误；D 选项形式错误。

4.The________are beautiful.A.flowerB.flowersC.a flowerD.floweres答案：B。

“are”表明主语是复数，“flower”的复数是“flowers”。

A 选项是单数形式；C 选项“a flower”是单数；D 选项复数形式错误。

5.That is________book.A.TomB.TomsC.Tom'sD.Toms'答案：C。

表示“某人的”要用名词所有格，Tom 的所有格是Tom's。

A 选项是人名；B 选项形式错误；D 选项形式错误。

6.There are some________in the classroom.A.deskB.desksC.a deskD.deskes答案：B。

“some”修饰可数名词复数，“desk”的复数是“desks”。

A 选项是单数形式；C 选项“a desk”是单数；D 选项复数形式错误。

小升初英语期末易错试题含答案一、单项选择1．He’d like _________Hong Kong. ( )A．travelling B．travels C．to travel2．Don’t ________ sad. ( )A．are B．be C．is3．I want _______ a teacher. ( )A．be B．to be C．am4．From then on, Sam and Bobby ______ good friends. ( )A．become B．became C．is become D．are became 5．My aunt is a ________. She likes ________. ( )A．cooker; cook B．cooker; cooking C．cook; cooking6．在句子“Please look at the blackboard.”中，哪两个单词可以进行连读？( ) A．Please look B．look at C．the blackboard7．It is not ________ to ride on the left side of the road in China. ( )A．safely B．safety C．safe8．There _____ no computers in my home before. But now there _____ two computers. ( ) A．are; are B．were; are C．are; were9．The boys and girls were happy ________ Lily’s birthday party last night. ( )A．for B．at C．of10．That’s the ______ dinosaur in this hall. ( )A．tall B．taller C．tallest11．It is the last year in our school. It is time ______ goodbye. ( )A．say B．to say C．says12．The football match is very ________.（）A．excite B．excited C．exciting13．I ________ camping yesterday. ( )A．go B．goed C．went14．—We went to Sanya by plane last summer. ( )—______A．No, we didn’t.B．Sounds great! C．Thank you.15．_______ I'm going to visit the moon. ( )A．Last Monday B．One day C．Five days16．Look! The monkey _________ in the tree. ( )A．swing B．is swinging C．swings17．I will play ______ or play ______ in the afternoon. ( )A．football; the basketball B．the piano; basketball C．piano; the football 18．—Did you watch the Strawberry Music Festival last weekend? ( )—______ I went shopping.A．Yes, I did. B．No, I wasn’t.C．No, I didn’t.19．—How many ______ do you see? ( )—I see three.A．potatoes B．tomatoes C．green beans20．—_____ ( )—It was good.A．How was your weekend? B．What happened? C．What else?二、用单词的适当形式填空21．—_______ (do) you go swimming? —Yes, I did.22．We shouldn’t _____ (cut) down the trees.23．Mary _____ (live) in the USA before.24．Listen! The bird ____ (sing) in the tree.25．I like singing best, so I want to be a ____ (sing).26．There ________ (be) an apple and two oranges on the table last night.27．_______ (keep) safe, we must _______ (wait) on the pavement.28．The weather there often changes ________ (quick).29．Everyone must know about road ________ (safe).30．We took lots of _______ (picture) yesterday.三、完成句子31．Did you go to the __________ (公园) yesterday?32．The sun is s________ and the wind is blowing.33．I want to be a w________ in the future, because I like writing for the children.34．W_________ to my school. I'll show you around it.35．When you see foreign friends in our school, you can say to them "W______ to my school". 36．Mike likes ________ (滑冰) in winter.37．I couldn’t go _____ (骑自行车运动) in winter.38．I ______ (拜访) my grandparents last weekend.39．My cousin Sandy dances _____ (美丽地).40．I’m 50 k____________.四、完形填空41．It's time __41___ supper. My sister and I __42___ thirsty and hungry. We would like __43___ and drink. This is a table. A lot of __44___ are on it. I like sweet food and fruit, like apples, pears and ___45____. My sister __46___ drinks, like tea, milk and orange juice. __47___ favourite food is noodles, dumplings and rice. After __48___, we do ___49____ homework and then go to bed__50___ 10:浩瀚00、41、A．in B．at C．for42、A．am B．is C．are43、A．eat B．to eat C．eats44、A．fruit and food B．fruit and foods C．fruits and foods45、A．bananas B．noodles C．dumplings46、A．likes B．like C．to like47、A．She B．Her C．Hers48、A．lunch B．supper C．breakfast49、A．us B．we C．our50、A．in B．at C．on五、阅读判断42．阅读理解How is the weather in Australia? Would you like to know about it? Let me tell you·It is autumn in China now, but it is spring in Australia. Spring is very nice in Australia. It is fine and warm. There are a lot of flowers there. Every year there are many flower shows in some big cities. Many people go to the flower shows. Winter is not very cold and summer is not very hot. In summer it is a little hot at noon, but it is cool in the morning and in the evening. It rains sometimes, but it doesn't snow.根据短文内容判断正(T)误(F)。

小升初英语语法易错点对比练习题50题1.There are many ____ on the table.A.appleB.applesC.an appleD.apple's答案：B。

本题考查名词复数。

many 后面要跟可数名词复数，A 是单数形式，C 中an 修饰单数可数名词，D 是所有格形式，只有B 是复数形式。

2.I need some ____ to make bread.A.flourB.floursC.a flourD.flour's答案：A。

flour 是不可数名词，没有复数形式，B 错误；C 中a 不能修饰不可数名词；D 是所有格形式。

3.There are a few ____ in the basket.A.tomatoB.tomatoesC.a tomatoD.tomato's答案：B。

a few 后面跟可数名词复数，A 是单数形式，C 中a修饰单数可数名词，D 是所有格形式，只有B 是复数形式。

4.I drink a glass of ____ every day.kksC.a milkk's答案：A。

milk 是不可数名词，没有复数形式，B 错误；C 中a 不能修饰不可数名词；D 是所有格形式。

5.There are some ____ on the tree.A.leafB.leavesC.a leafD.leaf's答案：B。

some 后面跟可数名词复数或者不可数名词，leaf 的复数是leaves，A 是单数形式，C 中a 修饰单数可数名词，D 是所有格形式。

6.I have two ____ of bread.A.pieceB.piecesC.a pieceD.piece's答案：B。

two 后面跟可数名词复数，piece 的复数是pieces，A是单数形式，C 中a 修饰单数可数名词，D 是所有格形式。

7.There is a lot of ____ in the bowl.A.riceB.ricesC.a riceD.rice's答案：A。

小升初英语基础语法易错点单选题30题(答案解析)1.There are many_____in the park.A.peopleB.peoplesC.personD.persons答案：A。

“people”本身就是复数名词，表示“人，人们”；“peoples”表示“民族”；“person”是单数形式“人”；“persons”也是“人”的复数形式，但比较正式且不常用。

题干中说公园里有很多人，所以用“people”。

2.I need some_____to make a cake.A.flourB.floursC.flowerD.flowers答案：A。

“flour”是不可数名词“面粉”；“flours”这种形式不存在；“flower”是“花”；“flowers”是“花”的复数形式。

题干中说做蛋糕需要一些东西，应该是面粉，所以选“flour”。

3.There are a few_____on the table.A.appleB.applesC.appleesD.appless答案：B。

“apple”的复数形式是“apples”；“applees”和“appless”形式错误。

题干中说桌子上有一些东西，应该是苹果，所以用“apples”。

4.Can you see some_____in the river?A.fishB.fishesC.fishsD.fishies答案：A。

“fish”表示“鱼”时，单复数同形；“fishes”表示不同种类的鱼；“fishs”和“fishies”形式错误。

题干中问在河里能看到一些什么，应该是鱼，不确定是一种还是多种，所以用“fish”。

5.There is a lot of_____in the bottle.A.waterB.watersC.wateresD.wateries答案：A。

“water”是不可数名词，表示“水”；“waters”表示“水域”；“wateres”和“wateries”形式错误。

小升初英语基础语法易错点单选题40题1.There are many________on the desk.A.bookB.booksC.a book答案：B。

本题考查名词复数形式。

选项A“book”是单数形式，前面有“many”修饰，应该用复数形式“books”；选项C“a book”也是单数形式，不符合要求。

只有选项B“books”是正确的复数形式。

2.This is________bag.A.LilyB.Lily'sC.Lilys答案：B。

本题考查名词所有格。

选项A“Lily”是人名，不能直接修饰“bag”；选项C 形式错误；选项B“Lily's”是正确的所有格形式，表示“莉莉的”。

3.I have two________.A.penB.pensC.a pen答案：B。

“two”表示两个，后面的名词要用复数形式，选项A“pen”是单数形式，选项C“a pen”也是单数形式，只有选项B“pens”是复数形式。

4.The________are beautiful.A.flowerB.flowersC.a flower答案：B。

“are”表明主语是复数，选项A“flower”是单数形式，选项C“a flower”也是单数形式，只有选项B“flowers”是复数形式。

5.That is________book.A.myB.meC.I答案：A。

本题考查形容词性物主代词。

选项B“me”是宾格形式，选项C“I”是主格形式，都不能修饰“book”；选项A“my”是形容词性物主代词，可以修饰“book”。

6.These are________pencils.A.JimB.Jim'sC.Jims答案：B。

考查名词所有格。

选项A“Jim”是人名，不能直接修饰“pencils”；选项C 形式错误；选项B“Jim's”表示“吉姆的”，是正确的所有格形式。

7.There is________apple on the table.A.anB.aC.the答案：A。

小升初英语易错100题1. This is my I-phone 5. Where's ？A. youB. yoursC. yourD. yourself2. ---Hi, Mom. When will you go to Beijing?---Tomorrow. You must look after ______ when I leave home.A．you B. yours C. your D. yourself3. I am awfully thirsty. Would you give me ?A. two bottles of orangesB. two bottles of orange C .two bottle of oranges D. two bottle of orange4. It was founded the night of October 10, 1946.A. atB. onC. inD. during5. ---Are these your pencils？---_____________________A. Yes, these areB. No, these aren’tC. Yes, they aren’tD. Yes, they are.6. ---Who knock(敲) at the door?---Maybe______ James.A. he’sB. she’sC. that’sD. it’s7. ---Who’s that speaking?---______.A. I’m TomB. That’s Tom speakingC. It’s meD. This is Tom8. This is ___________________.A. a friend of my sisterB. a friend of herC. a friend of hisD. a friend of my9. ---Linda, are you going to play _____ chess next Sunday.---Of course, and I’ll play ______violin that afternoon.A. the, theB. the, \C. \, theD. \, \ 10. Bob is ____ eleven-year-old boy.A. aB. anC. theD. /11. Bob is a _____________ boy.A. ten years oldB. ten-year-oldC. ten-years-oldD. ten year old12. ---Did you buy _______ for Lisa’s.---Certainly. I did.A. something unusualB. anything specialC. unusual somethingD. special anything13. The boy is to take care of himself.A. enough oldB. enough youngC. old enoughD. young enough14. My son is ____.Today is his _____birthdayA. twelve ; twelveB. twelfth; twelfthC. twelfth; twelveD. twelve; twelfth15. The volunteers(志愿者) took _____ books to a mountain village.A. two hundreds ofB. two hundred ofC. two thousandsD. two thousand16. He wrote _____ novel(小说) when he was _____ .A. five, fiftiesB. the fifth, fiftyC. fifth, fiftyD. five, fivety17. ______ your father _____ with you?A. Does; strictB. Do; strict C Is; strict D. Are; strict18. The books are very ______ . They sell very ______.A. good; goodB. well; wellC. well; goodD. good; well19. Can I join the ______ club?A. swimsB. swimmingC. swimD. swiming20．—are those vegetables?— Two yuan a kilo.A. How manyB. How muchC. WhatD. How21. ---_____will you return to Italy?--- In two weeks.A. How oftenB. How longC. How oftenD. How soon22. --- ____ do you get to the store.--- In a car.A. WhereB. What place C .How D. Whose23---What is the time? ---It’s________.A. a quarter to nineB. TuesdayC. Apr. 1stD. so early now24.---Do you have the time? My watch doe sn’t work. ---_______.A. No, I didn’tB. Yes, I doC. No, I am so busyD. Half past seven25. ----What’s the matter ___you？A. aboutB. toC. withD. for26. _____are Lily’s good friends.A. She, you and sheB. You, I and sheC. I, you and sheD. You, she and I27 ----_____ is your birthday? ----It’s August, 21st.A. WhatB. WhenC. HowD. How much28.. ______ do you like better, beef or mutton?A. WhatB. When D. Which D. Whose29 ----______ do they come here?---They have a meeting.A. WhenB. WhyC. WhatD. How30---_____ coffee do you want?---Two cups.A. How manyB. How muchC. WhatD. where 31.--- How often do you get to the zoo.--- _____. I don’t like animals.A. No oftenB. NeverC. OftenD. some time32. ---Where were you last Saturday?---I ______in the Capital Museum.A. amB. will beC. wasD. is going33. There is little milk in the glass, ?A. is thereB. isn't thereC. isn't itD. does it34. You should finish your lessons you go to play.A. whenB. soC. sinceD. before35. Mr. Black told Ann _____ her boyfriend who fell into drugs (毒品), but she never obeyed(遵守).A. to meet withB. to not meetC. not to meetD. meeting36. The teacher asked me ________ to her carefully.A. to listen B, not to listen C. listened D. listening37. Do you want ______play computer games with us.A. playB. playingC. to playD. played38. I asked him _____ computer games all the time. Because he got a poor grade.A. to playB. not playingC. playingD. not to play39. As a teacher, I want him ______ with his classmate on class.A. to talkB. talkingC. not talkingD. not to talk40.----Mom, may I play computer games，now？----Of course，but you have to finish______ the text first.A. to readB. readingC. readD. into41. ----Do you enjoy ______? Would you like ________with us?---I’d like to, but I have to look after my Mom.A. go hiking, comingB. to go hiking, to comeC. going hiking, to comeD. going hiking, coming42.---_____is the weather _____ today?-- It’s sunn y.A. What, look likeB. How，不填C. What, lD. How, like43. ---It’s very comfortable（舒适的）_____ in this building. Don’t you think so?---Sure.A. livingB. to liveC. living,D. lived44. I find it not easy _____ this house.A. buyingB. to buyC. buyD. bought45. ---Please stop _____ our class at once(立刻)!---Ok, I hear the ring, Mr. White.A. havingB. hadC. to haveD. have46. I forgot ______back to Tom’s backpack that I borrowed last week. So he was very angry.(give back的意思是“归还”)A. givingB. to giveC. gaveD. given47. Thanks for __________ me with the work.A. to helpB. helpedC. helpingD. not to help48. What about _______, today? It’s very hot.A. to swimB. swimmingC. not to swimD. swam49.How about __________, today? It’s very hot.A. to swimB. swimmingC. not to swimD. swam50. He spent much time in __________ all day.A. to swimB. swimmingC. not to swimD. swam51. He spent an hour ______ her homework..A. didB. to doC. not to doD. doing52. Be careful, _____ you will fall off the tree.A. soB. orC. butD. and 53. Never give up, ____ you’ll m ake it.A. soB. orC. butD. and54. Lucy and Lily are twins, Lucy like playing basketball,___ Lily doesn’t.A. soB. orC. butD. and55. I left the keys at home, ____ I had to wait outside the doorA. soB. orC. butD. and56. ______interesting book he has in his hand!A. How anB. HowC. WhatD. What an57. _________ careful my mother is!A. How anB. HowC. WhatD. What an58. It ______ hundreds of people ten months to build the bridge(桥).A. costB. spendC. paidD. took59. The pants ____ nice, I’ll take______.A. look; themB. looks; itC. look; itD. looks; them60. Could you _____ these books to the classroom?A. putB. takeC. bringD. make61. Every time Aunt Rose comes to my house, she ___ me a lot of gifts.A. bringB. takeC. carriesD. get62.----Would you like to play basketball with us?---_____, but I have to finish my homework first.A. Yes, I’d likeB. I’d like toC. Yes, I likeD. No, I don’t like63. He ___ better not keep talking now. I can hear nothing.A. hasB. is havingC. hadD. have64. ---Who is ___ about your father in the room? ---My uncle.A. tellingB. speakingC. sayingD. talking65. There is____milk left in the bottle. Would you go to the store and get ____?A. little, someB. a little, anyC. little, someD. a little, some66---Why can’t the boy understand what the America teacher said?---Because he is beginner, he knows ____ English.A. a littleB. littleC. not manyD. few67.--- May I play computer game now, Mom?---No, you ______. You must finish your homework first.A. can’tB. mustn’tC. needn’tD. won’t68 ---Must I do my homework on Sunday, Mom？---No, you ____ .We will go to movies with father.A. mustn’tB. don’t have toC. can’tD. shouldn’t69. Is there going to _____a meeting?A. haveB. be C .is D. will be70. It’s going to _____in BeijingA. snowB. sunnyC. windy71. It’s going to be ____in ShanghaiA. rain B .be warm C. hot72. He usually _____ the newspaper at home.A. readsB. seesC. watchesD. look at73. We will _____a basketball game tomorrowA. readB. seeC. watchD. look at74. She _____very beautifulA .looks B. look at C. looks for D. look out of75. My dog eats_____A. a lotB. lots ofC. a lot ofD. much too 76 .He is felling ______betterA. lots ofB. a lot ofC. a lotD. too77. I can _____somebody comingA. hearB. hearing C .listening D. listen78 .My family ____all listening to musicA. isB. areC. willD. have79. How many rooms are there in your _____A. homeB. houseC. family80. I took a taxi _____ the hospitalA. byB. onC. go toD. to81. What happened _____ your head ?A. withB. onC. to82. What’s wrong _____ your arm?A. withB. onC. to83. Who listens ____, Tom, Jack or Bill.A. the most carefully B .more carefully C. the most careful D. more careful84. . Mary usually spends______ time watching than Jim does.A. manyB. muchC. lessD. little85. ---What do you think of the films I’ve ever seen.---Oh, it’s one of ____ films I’ve ever seen.A. interestingB. more interestingC. most interestingD. the most interesting86. — what do you think of the flowers?-----they look _______ than any other flowers.A. beautifulB. beautifullyC. more beautifulD. much more beautifully87. ---What a nice watch it is!---Yes. It’s ____ one of all.A. expensiveB. more expensiveC. the most expensiveD. more expensive88 — It's time to go to bed, Jim. —O K. ,M o m.A. Good-byeB. See youC. Good afternoonD. Good night 89. — We'll go to Qing Yuan Mountain tomorrow. Why join us? —That's a good idea. A. notB. don'tC. can'tD. didn't90. I heard one of the pandas a baby. A. haveB. areC. hadD. has91. I'm taller than Bill, but I sit him.A. at the back ofB. behindC. in front ofD. far from92. — There was a telephone call for you. A. Who was it B. Who was heC. What was itD. Who was she93. —Merry Christmas and Happy New Year!— .A. It's very nice of youB. You're welcomeC. Thank youD. The same to you 94. One of _____ is playing basketball.A. boyB. the boyC. boysD. a boy 95. The bus is coming. Please .A. get it offB. get off itC. get it onD. get on it 96. ---My I-phone was lost when I took a bus yesterday. ---______________________A. I’m sorry to hear thatB. It doesn’t matter C . Don’t be silly(愚蠢的) D. I’d love to 97. Miss Li is English teacher.A. Tom and TinaB. Tom and Tina’sC. Tom’s and Tina’sD. Tom’s and Tina98. ---Can you help me my math homework, Miss Zhang? ---OK. Come to my house Sunday morning. A. with; in B. do; at C. to do; onD. to do; in99. ----You look very beautiful. ----__________________A. Don’t say thatB. You, tooC. You are more beautifulD. Thank you 100.—Is your father at home?---No, he’s working late_____ the office. A. on B. at C. of D. to。

小升初英语单项选择易错点单选题50题1. There is ___ apple on the table.A. aB. anC. theD. /答案：B。

本题考查冠词的用法。

“apple”是元音音素开头的单词，所以要用不定冠词“an”，A 选项“a”用于辅音音素开头的单词前，C 选项“the”表示特指，此处不是特指，D 选项“/”表示零冠词，此处需要一个不定冠词，所以选B。

2. I have two ___ and three ___.A. knife; penB. knives; pensC. knife; pensD. knives; pen答案：B。

本题考查名词的复数形式。

“knife”的复数是“knives”，“pen”的复数是“pens”，A 选项“knife”和“pen”没有用复数形式，C 选项“knife”没有用复数形式，D 选项“pen”没有用复数形式，所以选B。

3. Do you see ___ bird in the tree?A. aB. anC. theD. /答案：A。

本题考查冠词的用法。

“bird”是辅音音素开头的单词，所以用不定冠词“a”，B 选项“an”用于元音音素开头的单词前，C 选项“the”表示特指，此处不是特指，D 选项“/”表示零冠词，此处需要一个不定冠词，所以选A。

4. There are some ___ on the floor.A. childB. childrenC. childsD. childrens答案：B。

本题考查名词的复数形式。

“child”的复数是“children”，A 选项“child”是单数形式，C 选项“childs”和D 选项“childrens”都是错误的复数形式，所以选B。

5. Can you give me ___ water?A. aB. anC. someD. any答案：C。

本题考查不可数名词和量词的用法。

“water”是不可数名词，不能用不定冠词“a”和“an”，A 选项和B 选项排除。