4A专项练习
沪教版小学牛津英语四年级第一学期4A M3U3 In the shop小练习(附答案)
沪教版小学牛津英语四年级第一学期4A M3U3 In the shop小练习Class________ Name________ No._________一、Choose the best answer（选择最佳答案，将字母代号写在前面的括号内）：()1. I am hungry. I want some _________.A, juice B, cake C, water()2. ---_________ is it?---It’s ten yuan.A, How much B, How old C, How many ()3. __________ your biscuits sweet?A, is B, Are C, Are there()4. I have a loaf of _________.A, noodles B, rice C, bread()5. This is _________ ice cream.A, a B, an C, two()6. ---Here _________ are.A, you B, your C, you’re()7. We can see some __________ in the sky.A, sun B, moon C, stars()8. I can buy some _________ in the clothes shop.A, shirts B, books C, kites二、Rewrite the sentences (按要求改写下列句子，每线一词)：1. There are some flowers in my hand. (改为一般疑问句)__________ __________ ________ __________ in your hand?2. The sweets are nine yuan. (根据划线提问)__________ ___________ ___________the sweets?3. They are on Nanjing Road. (改为単数句)__________ ___________ on Nanjing Road.4. My sister is a nurse.(根据划线提问)_________ _________ your sister __________?5.They like drinking juice. (改为一殷疑问句)_________ they _________ drinking juice?5. How much are your rubbers? (根据实际情况回答)They are _________ _________.三、Read and write （读一读，按要求写出下列单词的变化形式）：1. it（复数形式）__________2. bread（同类词）___________3. biscuits（单数形式）________4. I（物主代词）______________5. shop（同类词）__________6. can not（缩略形式）________四、Read and judge（读一读，判断下列各组单词划线部分的发音，用或表示）五、Rewrite the sentence（按要求改写下列句子，每线一词）1. There is some coke in the bottle.（改为一般疑问句）_________ _________ __________ coke in the bottle?2. The balloon is three yuan.（根据划线提问）_________ _________ __________ the balloon?3. It’s ten yuan.（改为复数句）__________ ___________ ten yuan.4. My sister is happy.（根据划线提问）_________ _________ your sister _________?5. I like eating chocolate.（改为一般疑问句）_________ you like _________ chocolate?6. How much is your ruler?（根据实际情况回答）It's _________ ________.六、Read and write（用所给单词的适当形式填空，每线一词）1. Do you have two __________ (bowl)? Where _________ (be) they?2. How much ___________ (be) a pair of __________ (sock)?3. This is __________ (Peter) shirt. It __________ (have) three colours.4. Look at _________ (I) bag. There _________ (be) some books in it.5. What ________ your uncle __________ (do)? A doctor?七、Rewrite the sentences（按要求改写下列句子，每线一词）1. My notebook is one yuan.（根据划线提问）__________ __________ ____________ your notebook?2. There is some juice in the bottle.（一般疑问句）__________ __________ ____________ juice in the bottle?3. It’s nine yuan.（改为复数句）__________ __________ nine yuan.4. I like eating noodles.（改为否定句）I _________ like __________ noodles.5. How much is your bag?（根据实际情况回答）_________ __________ ___________.八、Write at least 5 sentences（请说说一种你喜欢的食物，可以说说口味、颜色等等，至少5句，要求2-3种句型，先将题目补充完整）：5%I like____________参考答案：一、1, B2, A3, B4, C5, B6, A7, C8, A二、1, Are there any flowers2, How much are3, He is4, What does do5, Do like6, two yuan 三、1, they2, cake3, biscuit4, my5, bakery6, can’t四、1, 2,3, 4,五、1, Is there any2, How much is3, They are4, don’t eating5, two yuan六、1, bowls are2, is socks3, Peter’s has4, my are5, does do七、1, How much Is2, Is there any3, They are4, don’t eating5, They’re twenty yuan八、I like applesIt is round.It is red.It is sweet.Can you guess?What is it?It’s an apple.I like apples.。
差倍问题专项练习2(只列式不计算)
●甲数是120，比乙数的3倍少6，乙数是多少？●小鸡有375只，比鸭子多25只，鸭子的只数是鹅的5倍，鹅有多少？●一个畜牧场有黑羊4150只，白羊比黑羊的2倍少600只，畜牧场一共有羊多少只？●果园里有苹果树60棵，梨树是苹果树的3倍，梨树比桃树少18棵，问桃树多少棵？●一台彩电2850元，比一台洗衣机售价的3倍还多150元，一台洗衣机售价多少元？●水果店一月份卖出苹果520千克，卖出梨250千克，卖出橘子比苹果与梨的总和的3倍还多8千克，卖出橘子多少千克？●苹果园有苹果树258棵，是梨树的3倍，桃树比梨树的2倍少18棵，问果园里有桃树多少棵？●挖一条水渠，已经挖好了500米，是没有挖好的米数的2倍还多100米，没有挖好的是多少米？●食堂买来一批大米，已经吃了210千克，剩下的大米比吃掉的2倍少130千克，这批大米原来共有多少千克？●养鸡场有公鸡134只，母鸡的只数是公鸡的3倍，母鸡的只数比小鸡少58只，养鸡场有多少只小鸡？●某电视机厂每月计划生产750台电视机，实际1月至5月的产量之和比全年计划产量的一半少50台，照这样计算，全年实际能生产多少台电视机？●园林工人在一条公路旁种树，松树种了12棵，种的柳树是松树的3倍，种的梧桐树比柳树的2倍多10棵，梧桐树种了多少棵？●今年爷爷78岁，是小明的6倍，爸爸的年龄比小明今年年龄的4倍小3岁，爸爸今年几岁？●校园里有柳树48棵，梨树32棵，梨树比桃树多15棵，苹果树的棵树是桃树的5倍，校园里有苹果树多少棵？●77比一个数的7倍多14，这个数是多少？●甲数是38，比乙数的5倍少2，乙数是多少？●甲是12，乙是甲的4倍少32，乙是多少？●甲是120，比乙大25，丙是乙的3倍，求丙？●甲是420，比乙的4倍多12，求两数和。
●商店运进苹果300箱，生梨的箱数比苹果的4倍还少76箱，生梨有多少箱？●上海到北京的铁路长1463千米，比上海到南京的铁路的5倍多63千米，上海到南京的铁路长多少千米？●机床厂一车间有工人42人，比二车间少16人，三车间的人数比二车间的4倍少16人，三车间有多少人？●一辆自行车的速度是18千米/时，一辆汽车的速度比自行车速度的4倍少12千米，一架飞机的速度是汽车速度的8倍，求这架飞机的速度?●一堆煤，用去27吨，剩下的比用去的4倍少5吨，这堆煤原来有多少吨？●学校买篮球4只，买的篮球是足球的一半，买的排球比篮球、足球的总和的3倍少5只，学校买来排球多少只？。
【期末专项】U1-U8情景交际专项练习一(有答案)--译林英语四年级上册
译林英语4A期末情景题专项练习（有答案）( )1.想让对方看你的新玩具时，你可以说：A.This is my new toy.B.Look at my new toys.C.They are my toys. ( )2.当妈妈问你喜不喜欢橙子时，你可以回答：A.Yes, I do.B.Yes, I like apples.C.No. I like oranges. ( )3.当同学让你看她新买的那些玩具娃娃时，你可以说：A.How nice!B.It’s nice.C.No, I don’t like it. ( )4.想知道那个物品是什么时，你可以问：A.What’s this?B.What are those?C.What is that? ( )5.你想说那些动物可爱时，你可以说：A.It’s cute.B.These animals are cute.C.Those animals are cute. ( )6.你告诉朋友喜欢那个橘子，你会说：A.Do you like oranges?B.I like oranges.C.I like that orange. ( )7.你想让对方看看你的水果沙拉，你会说：A.Look at our fruit cake.B.Look at my fruit salad.C.Look at our fruit salad.( )8.当你告诉别人那些葡萄甜，你不会说：A.The grapes are sweet.B.These grapes are sweet.C.Those grapes are sweet. ( )9.别人问你有没有一些苹果，你会说：A.Do you have any apples?B.Yes,I have.C.Yes,I do.( )10.告诉别人你喜欢这个芒果，你会说：A.I like mangoes.B.I'd like this mango.C.I like this mango. ( )11.当你想问对方是否想要一个馅饼时，你会说：A.Would you like a pie?B.Yes,please.C.Do you have a pie? ( )12.你想知道对方是否会打篮球，你会问：A.Can you play football?B.Do you play basketball?C.Can you play basketball? ( )13.你想知道朋友是否有一个机器人时说：A.I have a robot.B.Do you have a robot?C.Do you have any robots? ( )14.当你问那些男孩会不会游泳时，你会说：A.Can you swim?B.Can the boy swim?C.Can the boys swim? ( )15.想告诉别人你能看到许多的苹果时，你会说：A.I can see some apples.B.We can see many apples.C.I can see many apples. ( )16.当别人说他自己不会打乒乓球时，你会说：A.How nice!B.Don't be sad.C.Great.( )17.爸爸告诉你他可以踢足球踢得好，他说：A.I can play football well.B.He can play football well.C.I can play football. ( )18.你想知道对方想要什么，你会问：A.What do you like?B.What would you like?C.What about you? ( )19.你想知道自己的那些贴纸在哪里，你会问：A. Where's my sticker?B.Where are my stickers?C.Are those your stickers? ( )20.当对方把你需要的东西递给你时，你会说：A.Here you are.B.All right.C.Thank you.( )21.想告诉别人这是你的新卧室，你会说：A.This is my new bathroom.B.This is my new bedroom.C.This is my new kitchen. ( )22.当你想知道那本书在不在书桌上，你会说：A.Is the book on the table?B.Is the book on the desk?C.Where's the book? ( )23.当你想让对方过来吃个馅饼，你会说：e and eat a pie.e and make a pie.e and see a pie. ( )24.想知道别人的看法时，你会说：A.How are you?B.What about you?C.What's your name? ( )25.当你告诉营业员想买一杯果汁时，可以说：A.I like juice.B.I'd like a juice.C.I'd like a glass of juice.( )26.营业员想知道你还需要些什么，她会说：A.Anything else?B.I'd like a cake.C.I like cakes.( )27.你想要一个汉堡，你可以这样说：A.A hamburger,please.B.Yes,please.C.I like hamburgers.( )28.当你想问对方是否想要一个馅饼时，你会说：A.Would you like a pie?B.Yes,please.C.Do you have a pie?( )29.当对方问你还需要其他什么，你可以这样说：A.What about you?B.No,thank you.C.Anything else?( )30.去商店买袜子，售货员不会说：A.Can I help you?B.I'd like a pair of socks.C.What would you like?( )31.当你告诉别人那把扇子很酷，你会说：A.This fan is cool.B.The fans are cool.C.That fan is cool.( )32.同学们把教室打扫得干干净净，老师会说：A.Have a try.B.You are right.C.Well done.( )33.想知道那个机器人多少钱，你会说：A.How much is it?B.How much is this robot?C.How much are they?( )34.当你告诉对方想要那双鞋，你会说：A.I'd like that shoesB.I'd like those shoes.C.I'd like that pair of shoes. ( )35. 你看到那些机器人会做许多事，你可以说：A.These robots are great!B. those robots are great!C. That robots is great!( )36. 好朋友夸你现在很漂亮，你可以说：A.How cool!B. How about you?C. Thank you.( )37. 你让对方看你的雪人，他/她可以说：A.Your snowman is very nice.B. Look at my snowman.C. Is it your snowman? ( )38. 当对方让你看她的玩具汽车时，你可以说：A.Look at his toy car.B. How beautiful!C. I like my toy car. ( )39.想知道对方会不会游泳时，你可以说：A.I can swim too.B.Can you swim?C.He can swim.( )40. 想告诉对方你会溜冰时，你可以说：A.I can skate.B. I can swim well.C. Can you skate?( )41. 想告诉朋友你喜欢篮球这项运动时，你可以说：A.I can play basketball.B. It’s a basketball.C. I like basketball. ( )42. 朋友不会跳，你想鼓励他试一试，你可以说：A.Can you jump?B. Have a try.C. I can’t jump either. ( )43. 想劝对方不要难过时，你可以说：A.Are you sad?B. Ouch!C. Don’t be sad.( )44. 你想告诉别人你喜欢猫，你会说：A. I like cats.B. Do you like cats?( )45. 别人问你喜不喜欢马，你会回答：A. Do you like horse?B. Yes, I do.( )46. 你想让别人看你的玩具狗，你会说：A. Look at my toy dog.B. Do you like dogs?( )47. 你看到远处有一只小动物，想知道它是什么，你会问：A. What’s this?B. What’s that?( )48. 你想告诉对方你手里拿的是一个菠萝，你会说：A. This is a pineapple.B. Do you have a pineapple?( )49. 你想要一个橙子，你会说：A. Would you like an orange?B. I’d like an orange.( )50. 你想问对方有没有一些葡萄，你会问：A. Would you like some grapes?B. Do you have any grapes?( )51. 你想要大家一起来做一个水果色拉，你会说：A. Let’s make a fruit salad.B. Look at our fruit salad.( )52. 别人让你看他的新衬衫，你会赞叹道：A. Thank you.B. How nice!( )53.你想知道别人有多少葡萄，可以问：A. Do you have any grapes?B. How many grapes do you have? ( )54.你想知道对方有什么，可以问：A. What do you have?B. Can I have a look?( )55.你想要一个芒果，可以说：A. Would you have a mango?B. Can I have a mango?( )56.别人让你看他的玩具汽车，你可以说：A. Wow, it’s nice.B. Here you are.( )57.你想告诉别人你有十三本新书，可以说：A. I have fifteen new books.B. I have thirteen new books. ( )58.人家对你表示感谢，你可以说：A.That’s right.B.Not at all.参考答案1-5.BAACC6-10.CBBAC11-15.ACBCC16-20.BABBC21-25.BAABC26-30.AAABBACB36-40.CABBA41-45.CBCAB46-50.ABABB51-55.ABBAB56-58.BBB。
幂的运算专项练习50题(有答案)
幂的运算专项练习50题（有答案）1．2. （4ab2）2×（﹣a2b）33．（1）；（2）（3x3）2•（﹣x）；（3） m2•7mp2÷（﹣7mp）；（4）（2a﹣3）（3a+1）．4．已知a x=2，a y=3求：a x+y与a2x﹣y的值．5．已知3m=x，3n=y，用x，y表示33m+2n．6．若a=255，b=344，c=433，d=522，试比较a，b，c，d 的大小．7．计算：（﹣2 m2）3+m7÷m．8．计算：（2m2n﹣3）3•（﹣mn﹣2）﹣29．计算：．10．（﹣）2÷（﹣2）﹣3+2×（﹣）0．11．已知：2x=4y+1，27y=3x﹣1，求x﹣y的值．12．若2x+5y﹣3=0，求4x•32y的值．13．已知3×9m×27m=316，求m的值．14．若（a n b m b）3=a9b15，求2m+n的值．15．计算：（x2•x3）2÷x6．16．计算：（a2n）2÷a3n+2•a2．17．若a m=8，a n =，试求a2m﹣3n的值．18．已知9n+1﹣32n=72，求n的值．19．已知x m=3，x n=5，求x2m+n的值．20．已知3m=6，9n=2，求32m﹣4n+1的值．21．（x﹣y）5[（y﹣x）4]3（用幂的形式表示）22．若x m+2n=16，x n=2，（x≠0），求x m+n，x m﹣n的值．23．计算：（5a﹣3b4）2•（a2b）﹣2．24．已知：3m•9m•27m•81m=330，求m的值．25．已知x6﹣b•x2b+1=x11，且y a﹣1•y4﹣b=y5，求a+b的值．26．若2x+3y﹣4=0，求9x﹣1•27y．27．计算：（3a2x4）3﹣（2a3x6）2．28．计算：．29．已知16m=4×22n﹣2，27n=9×3m+3，求（n﹣m）2010的值．30．已知162×43×26=22m﹣2，（102）n=1012．求m+n的值．31．（﹣a）5•（﹣a3）4÷（﹣a）2．32．（a﹣2b﹣1）﹣3•（2ab2）﹣2．33．已知x a+b•x2b﹣a=x9，求（﹣3）b+（﹣3）3的值．34．a4•a4+（a2）4﹣（﹣3x4）235．已知（x5m+n y2m﹣n）3=x6y15，求n m的值．36．已知a m=2，a n=7，求a3m+2n﹣a2n﹣3m的值．37．计算：（﹣3x2n+2y n）3÷[（﹣x3y）2]n38．计算：（x﹣2y﹣3）﹣1•（x2y﹣3）2．39．已知a2m=2，b3n=3，求（a3m）2﹣（b2n）3+a2m•b3n的值40．已知n为正整数，且x3n=7，求（3x2n）3﹣4（x2）3n 的值．41．若n为正整数，且x2n=5，求（3x3n）2﹣34（x2）3n 的值．42．计算：（a2b6）n+5（﹣a n b3n）2﹣3[（﹣ab3）2]n．43．．44．计算：a n﹣5（a n+1b3m﹣2）2+（a n﹣1b m﹣2）3（﹣b3m+2）45．已知x a=2，x b=6．（1）求x a﹣b的值．（2）求x2a﹣b 的值．46．已知2a•27b•37c=1998，其中a，b，c为整数，求（a﹣b﹣c）1998的值．47．﹣（﹣0.25）1998×（﹣4）1999．48．（1）（2a+b）2n+1•（2a+b）3•（2a+b）n﹣4（2）（x﹣y）2•（y﹣x）5．49.（1）（3x2y2z﹣1）﹣2•（5xy﹣2z3）2．（2）（4x2yz﹣1）2•（2xyz）﹣4÷（yz3）﹣2．50．计算下列各式，并把结果化为正整数指数幂的形式．（1）a2b3（2a﹣1b3）；（2）（a﹣2）﹣3（bc﹣1）3；（3）2（2ab2c﹣3）2÷（ab）﹣2．幂的运算50题参考答案：1．解：原式=4﹣1﹣4=﹣1；2. 原式=16a2b4×（﹣a6b3）=﹣2a8b73．解：（1）原式=（﹣5）×3=﹣15；（2）原式=9x6•（﹣x）=﹣9x7；（3）原式=7m3p2÷（﹣7mp）=﹣m2p；（4）原式=6a2+2a﹣9a﹣3=6a2﹣7a﹣3．故答案为﹣15、﹣9x7、﹣m2p、6a2﹣7a﹣3 4．解：a x+y=a x•a y=2×3=6；a2x﹣y=a2x÷a y=22÷3=5．解：原式=33m×32n，=（3m）3×（3n）2，=x3y26．解：a=（25）11=3211；b=（34）11=8111；c=（43）11=4811；d=（52）11=2511；可见，b＞c＞a＞d7．解：（﹣2m2）3+m7÷m，=（﹣2）3×（m2）3+m6，=﹣8m6+m6，=﹣7m68．解：（2m2n﹣3）3•（﹣mn﹣2）﹣2=8m6n﹣9•m﹣2n4= 9．解：原式=（﹣4）+4×1=010．解：原式=÷（﹣）+2×1=﹣2+2=011．解：∵2x=4y+1，∴2x=22y+2，∴x=2y+2 ①又∵27y=3x﹣1，∴33y=3x﹣1，∴3y=x﹣1②联立①②组成方程组并求解得，∴x﹣y=312．解：4x•32y=22x•25y=22x+5y∵2x+5y﹣3=0，即2x+5y=3，∴原式=23=813．解：∵3×9m×27m，=3×32m×33m，=31+5m，∴31+5m=316，∴1+5m=16，解得m=314．解：∵（a n b m b）3=（a n）3（b m）3b3=a3n b3m+3，∴3n=9，3m+3=15，解得：m=4，n=3，∴2m+n=27=12815．解：原式=（x5）2÷x6=x10÷x6=x10﹣6=x416．解：（a2n）2÷a3n+2•a2=a4n÷a 3n+2•a2=a4n﹣3n﹣2•a2=a n﹣2•a2=a n﹣2+2=a n17．解：a2m﹣3n=（a m）2÷（a n）3，∵a m=8，a n =，∴原式=64÷=512．故答案为51218．解：∵9n+1﹣32n=9n+1﹣9n=9n（9﹣1）=9n×8，而72=9×8，∴当9n+1﹣32n=72时，9n×8=9×8，∴9n=9，∴n=119．解：原式=（x m）2•x n=32×5=9×5=4520．解：由题意得，9n=32n=2，32m=62=36，故32m﹣4n+1=32m×3÷34n=36×3÷4=2721．解：（x﹣y）5[（y﹣x）4]3=（x﹣y）5[（x﹣y）4]3=（x﹣y）5•（x﹣y）12=（x﹣y）1722．解：∵x m+2n=16，x n=2，∴x m+2n÷x n=x m+n=16÷2=8，x m+2n÷x3n=x m﹣n=16÷23=223．解：（5a﹣3b4）2•（a2b）﹣2=25a﹣6b8•a﹣4b﹣2=25a﹣10b6=24．解：由题意知，3m•9m•27m•81m，=3m•32m•33m•34m，=3m+2m+3m+4m，=330，∴m+2m+3m+4m=30，整理，得10m=30，解得m=325．解：∵x6﹣b•x2b+1=x11，且y a﹣1•y4﹣b=y5，∴，解得：，则a+b=1026．解：∵2x+3y﹣4=0，∴2x+3y=4，∴9x﹣1•27y=32x﹣2•33y=32x+3y﹣2=32=927．解：（3a2x4）3﹣（2a3x6）2=27a6x12﹣4a6x12=23a6x12 28．解：原式=•a2b3=29．解：∵16m=4×22n﹣2，∴（24）m=22×22n﹣2，∴24m=22n﹣2+2，∴2n﹣2+2=4m，∴n=2m①，∵（33）n27n=9×3m+3，∴（33）n=32×3m+3，∴33n=3m+5，∴3n=m+5②，由①②得：解得：m=1，n=2，∴（n﹣m）2010=（2﹣1）2010=130．解：∵162×43×26=28×26×26=220=22m﹣2，（102）n=102n=1012．∴2m﹣2=20，2n=12，解得：m=11，n=6，∴m+n=11+6=1731．原式=（﹣a）5•a12÷（﹣a）2=﹣a5+12÷（﹣a）2=﹣a17÷a2=﹣a15．32．解：（a﹣2b﹣1）﹣3•（2ab2）﹣2=（a6b3）•（a﹣2b﹣4）=a4b﹣1=33．解：∵x a+b•x2b﹣a=x9，∴a+b+2b﹣a=9，解得：b=3，∴（﹣3）b+（﹣3）3=（﹣3）3+（﹣3）3=2×（﹣3）3=2×（﹣27）=﹣54 34．解：原式=a8+a8﹣9x8，=2a8﹣9x835．解：（x5m+n y2m﹣n）3=x15m+3n y6m﹣3n，∵（x5m+n y2m﹣n）3=x6y15，∴，解得：，则n m=（﹣9）3=﹣24336．解：∵a m=2，a n=7，∴a3m+2n﹣a2n﹣3m=（a m）3•（a n）2﹣（a n）2÷（a m）3=8×49﹣49÷8=37．解：（﹣3x2n+2y n）3÷[（﹣x3y）2]n，=﹣27x6n+6y3n÷（﹣x3y）2n，=﹣27x6n+6y3n÷x6n y2n，=﹣27x6y n38．解：（x﹣2•y﹣3）﹣1•（x2•y﹣3）2，=x2y3•x4y﹣6，=x6y﹣3，=39．解：（a3m）2﹣（b2n）3+a2m•b3n，=（a2m）3﹣（b3n）2+a2m•b3n，=23﹣32+2×3，=540．解：原式=27x6n﹣4x6n=23x6n=23（x3n）2=23×7×7=112741．解：∵x2n=5，∴（3x3n）2﹣34（x2）3n=9x6n﹣34x6n=﹣25（x2n）3=﹣25×53=﹣312542．解：原式=a2n b6n+5a2n b6n﹣3（a2b6）n=6a2n b6n﹣3a2n b6n=3a2n b6n43．解：原式=（）50x50•（）50x100=x15044．解：原式=a n﹣5（a2n+2b6m﹣4）+a3n﹣3b3m﹣6（﹣b3m+2），=a3n﹣3b6m﹣4+a3n﹣3（﹣b6m﹣4），=a3n﹣3b6m﹣4﹣a3n﹣3b6m﹣4，=045．解：（1）∵x a=2，x b=6，∴x a﹣b=x a÷x b=2÷6=；=（2）∵x a=2，x b=6，∴x2a﹣b=（x a）2÷x b=22÷6=46．解：∵2a•33b⋅37c=2×33×37，∴a=1，b=1，c=1，∴原式=（1﹣1﹣1）1998=147．解：原式=﹣（）1998×（﹣4）1998×（﹣4），=﹣（）1998×41998×（﹣4），=﹣（×4）1998×（﹣4），=﹣1×（﹣4），=448．解：（1）原式=（2a+b）（2n+1）+3+（n﹣4）=（2a+b）3n；（2）原式=﹣（x﹣y）2•（x﹣y）5=﹣（x﹣y）749．解：（1）原式=（）﹣2•（）2=•=；（2）原式=•÷=•y2z6=150．解：（1）a2b3（2a﹣1b3）=2a2﹣1b3+3=2ab6；（2）（a﹣2）﹣3（bc﹣1）3，=a6b3c﹣3，=；（3）2（2ab2c﹣3）2÷（ab）﹣2，=2（4a2b4c﹣6）÷（a﹣2b﹣2），=8a4b6c﹣6，。
译林版4A英语期末专项复习：英汉互译
译林版4A英语期末专项练习：英汉互译一、英汉互译。
(10分)1. 画一个苹果________________2. a glass of water__________________3. 开门_________________4. have some cakes_______________5. 她的钥匙_________________6. whose socks___________________ 7、在四点三十__________________ 8.do the puzzle ___________________ 9、教师节快乐！10、Don’t worry.1、draw an apple2、一杯水3、open the door4、吃一些蛋糕5、her key6、谁的袜子7、at four thirty8、拼拼图9、Happy Teachers’ Day! 10、别担心二、词组中英互译。
(10%)1．去车站________________ 6. come here2.有一个大鼻子_______________ 7. a smart T-shirt3. 爬树____________________________ 8. in the shop4. 你的职业________________________ 9. some noodles for you5. 一个好主意______________________ 10.anything else三、根据中文提示完成下列句子。
（10分）1. Whose (短裤) are they? They’re (迈克的).2. I can see (六个书签) over there.3. Where is (她的) (新的) toy bear?4. This (不是) a (书). It’s a （钱包）.5. I like (狗) . They’re lovely!英汉互译。
沪教版小学牛津英语四年级第一学期4A 期末 改变句子专项练习(附答案)
沪教版小学牛津英语四年级第一学期4A 期末改变句子专项练习Class___________ Name__________练习：按要求改变句子1, There is a canteen on this floor.（提问）2, There are some plants in the garden.（提问）3, There is an office behind the classroom.（提问）4, There are some cupboards in the library.（否定句）5, There are some orange bicycles in the street.（单数句）6. What do you do in the canteen?（实际回答）7. There is a bottle of water on the table.（复数句）8. Are there any apples in the packet?（单数句）9. The large ice cream is ten yuan.（划线提问）10. These toy bears are fifty yuan.（划线提问）11. There's some bread in the bakery.（否定句）12. Is the packet of chocolate on the chair?（肯定句）13. There’s a hoop in the gym.（划线提问）14. The teachers are in the office.（划线提问）15. There’s a loaf of bread on the table.（划线提问）16. They want to send a postcard.（划线提问）17. Please open the door.（否定句）18. This is a big gate.（复数句）19. They eat corn.（划线提问）20. How do pigs go?（实际回答）21. What do cows eat?（根据实际情况回答）22. There are some horses on the farm.（划线提问）______________________________________________________________23. Here is a hen and a duck.（复数句）24. What’s in the picnic basket?（实际回答）25. Century Park is far away from our school.（划线提问）26. There are some ducks in the pond.（划线提问）27. My sister can paint.（否定句）28. My brother likes sleeping under the tree.（否定句）29. There are some birds in the aviary.（否定句）30. I have a camera.（划线提问）______________________________________________________________31. Kitty is beside the fountain.（划线提问）32. What's in the aviary?（实际回答）33. Where are you?（实际回答）34. Play in the pond.（否定句）35. There's a bottle of water in the basket.（划线提问）36. It’s sunny today.（根据划线提问）37. They are my sketchbooks.（划线提问）38. Is there a thin tiger on the path ?（改为复数句）39. I like skiing in winter.（一般疑问句）40. How is the weather in summer in Shanghai?（实际回答）41. What do you often do at Christmas?（实际回答）42. Is your father a police officer?（实际回答）43. What does your mother do?（实际回答）44. Play with the fire, children.（否定句）45. I have three friends.（划线提问）46. The man in the blue shirt is my teacher.（划线提问）47. His uncle is a bus driver.（划线提问）48. My parents are workers.（划线提问）49. I am a student.（划线提问）50. Mrs Zhang is a nurse.（一般疑问句，肯定回答）51. I have a book.（将I改为Jill）52. I have two sisters.（一般疑问句，肯定回答）53. Bryan has some ice cream.（一般疑问句,否回）54. Danny has two friends.（否定句）55. My mother is a policewoman.（划线提问）56. The lion is afraid.（改否定句，意思不变）57. What do you do?（实际情况回答）58. The boy's name is John.（划线提问）59. Wang Rong is tired.（划线提问）60. The man in the bright green shirt is my father.（划线提问）61. I have four uncles.（划线提问）62. Jill has one aunt （划线提问）63. The old lady is my grandma.（一般疑问句，肯回）64. My parents can swim fast.（一般疑问句，否回）65. We have some cousins.（一般疑问句,肯回）参考答案：1, What’s on this floor?2, What’s in the garden?3, How many offices are there behind the classroom? 4, There aren’t any cupboards in the library.5, There is an orange bicycle in the street.6, I have lunch in the canteen.7, There are some bottles of water on the table.8, Is there an apple in the packet?9. How much is the large ice cream?10. How much are these toy bears?11. There isn’t any bread in the bakery.12. The packet of chocolate is on the chair.13. What’s in the gym?14. Where are the teachers?15. How many loaves of bread are there on the table?16. What do they want to do?17. Please don’t open the door.18. These are big gates.19. What do they eat?20. They go ‘Oink-Oink’.21. They eat grass.22. What’s on the farm?23. Here are hens and ducks.24. There are cakes, bread and crisps.25. Where is Century Park?26. What’s in the pond?27. My sister can’t paint.28. My brother doesn’t like sleeping under the tree.29. There aren’t any birds in the aviary.30. What do you have?31. Where is Kitty?32. There are many birds in the aviary.33. I am at school.34. Don’t play in the pond.35. How many bottles of water are there in the basket?36. How is the weather today?37. What are they?38. Are there any thin tigers on the path?39. Do you like skiing in winter?40. It’s hot.41. I often have a big dinner with my family.42. No, he isn’t.43. She is a housewife.44. Don’t play with the fire, children.45. How many friends do you have?46. Who is the man in the blue shirt?47. What’s his uncle?48. What do your parents do?49. What are you?50. Is Mrs Zhang a nurse? Yes, she is.51. Jill has a book.52. Do you have two sisters? Yes, I do.53. Does Bryan have any ice cream? No, he doesn’t.54. Danny doesn’t have two friends.55. What’s your mother?56. The lion isn’t brave.57. I am a pupil.58. What’s the boy’s name?59. How is Wang Rong?60. Who is the man in the bright green shirt?61. How many uncles do you have?62. How many aunts does Jill have?63. Is the old lady your grandma? Yes, she is.64. Can your parents swim fast? No, they can’t.65. Do you have any cousins?Yes, we do.。
牛津英语4A期末专项练习题
四年级英语期末专项训练()13.—It’seightthirtyfive!—It’stimeto.姓名： A.gotoschool B.havelunch C.gotobed得分：()14.—Doyoulike?—Yes,Ido.一、选择题 A.puppet B.puppets C.apuppet()1.—MayIhaveacopybook________Nancy?She’sill.()15.—I’m.—Here’sa fanforyou.—Thankyou.—Sure.Hereyouare. A.hot B.thirsty C.tiredA.toB.forC.in()16.Shallwegotothecinemaby?()2.—Happy_________Day!MissLi.Here’sacardforyou. A.car B.acar C.thecar —Thankyou.()Nancy?--She’sintheclassroom.A.Teacher’sB.TeachersC.Teachers’ A.What’s B.Who’s C.Where’s()3.—Whoseumbrellaisit?()18.I’vegot rulersinmypencilbox.—Itis______umbrella.Myfathergiveittome. A.to B.two C.tooA.myB.hisC.your()19.Whatdoyoulike?Ilike.()4.—Ilovedolls.Doyoulikedolls?—_______________. A.thishat B.hat C.ahatA.Yes,Iam.B.Yes,Ido.C.Yes,youdo.()20.Whosebagisthat?It’s bag.()5.—_________ruleristhis?—It’sSuYang’s. A.Kitty B.she’s C.Kitty’s A.Who’s B.whose C.Whose()21.Thisschoolbagis him.()6.—Thejeansaretoolong.—Trythis______on. A.to B.for C.atA.oneB.pairC.a()22.Igotoschool eighto’clock.()7.—_______drawinyourbook.—Sorry,MrGreen. A.to B.for C.atA.NotB.NoC.Don’t()23.Happy Day.()8.—_________ismyruler?—It’sinyourpencilcase. A.Teachers’ B.Teacher’s C.TeachersA.WhereB.WhatC.Whose()24.anicelittlebook!()9.—What’sthis________English?—It’sabookmark. A.What B.How C.What’sA.onB.inC.at()25.drawinyournotebook,LiuTao.()10._________anicelittlebook!Ilikeitverymuch. A.Not B.No C.Don’tA.HowB.WhatC.Why()26.MayIhave________copybook?()11.—Look!Whatis_______overthere?—It’sakite. A./ B.a C.anA.thisB.thatC.those()27.That’s________ballpen.()12.—I’m sorry.— A.his B.he C.he’sA.Yes.B.Thankyou.C.That’sOK.()28.Thejeans________toolong.A.isB.amC.are( )29. ________sweatersarethese?A.WhoseB.WhoC.Who’s( )30. ________areyou?A.hereB.HowC.May( )31. ________isthisinEnglish?A.WhatB.What’sC.Why( )32. ________isthebook?A.WhereB.WhenC.What( )33. ________doyougotoschool?A.WhatB.WhattimeC.Whatcolour( )34. —Doyouliketigers?—No,I________.A.doB.don’tC.am( )35. —Whattimedoyougetup?—Igetup________.A.it ’ssixB.sixC.atsix( )36.What’sinyourdesk?A.It’sacopybook.B.I’vegotacopybook.C.No,itisn ’t. ( )37.What’sthetime,please?A.Thisisfivethirty.B.It’sfivethirty.C.Atfivethirty. ( )38. —Here’sanewsweater_______you.—Thankyou.A.inB.toC.for ( )39. —Doyoulikedolls? —No,I_______.A.doB.don’tC.not ( )40. —What’soneandone?.—_______.A.ElevenB.TenC.Two ( )41.She_______sofunny.A.looksB.lookC.looking( )42.Mycoatisvery_______,butIlikeit.A.niceB.shortC.pretty( )42. —It’snine.Gotobed,David.—Allright._______,Mum.A.GoodnightB.GoodmorningC.Good evening( )44.Iplayfootball_______afternoon.A.inB.attheC.inthe( )45. —I’mtired.—_______.’ssomewater.down,please.C.Haveapizza,please.( istheballpen?It’sinmyschoolbag.’s( thatyourtape?No,_______.A.itis. ’s C.itisn’t( ’sthis_______English?A.inB.on( youlikecoffee?Yes,I_______.A.Can,doB.Do,don ’tC.Do,do( this_________balloon?No,it ’s_______.A.your,MikeB.his,Helen’sC.she,LiuTao ’s二、按要求写句子1.in,what ’s,case,pencil,your连〔词成句〕2.Here’sanewnotebookforyou.〔写出赞同句〕3.ThisisacardinEnglish. 〔对划线局部发问〕4.ThenewpenisforMissLi.ThepencilcaseisforMissLi. 〔两句归并为一句〕5. Thatisanumbrellaonthechair.( 改为一般疑问句，)6.in，what,is,English,that 〔连词成句〕It’sanicetoypanda.〔改写成感触句〕8.That’smyfamilyphotoonthedesk.〔对划线局部发问〕9.Icanseeeightmonkeysinthetrees.( 改疑问句，并作一定回复)10.IsthisacatinEnglsih ？〔否定回复〕Thatisacopybook..(改为一般疑问句，并作否定回复)the,get,eat,a,a,hamburger,girls,up,and,hot,and,dog 〔连词成句〕---红色的盒子在哪里？〔翻译成英文〕--它在那边。
完全平方公式专项练习50题(有答案)
完全平方公式专项练习专项练习：1、计算（1）（a ＋2b ）2 （2）（3a －5）2 （3）（－2m －3n ）2 （4） （a 2－1）2－（a 2＋1）2 （5）（－2a ＋5b ）2 （6）（－21ab 2－32c ）2 （7）（x －2y ）（x 2－4y 2）（x ＋2y ）（8）2a ＋3）2＋（3a －2）2 （9）（a －2b ＋3c －1）（a ＋2b －3c －1）；（10）（s －2t ）（－s －2t ）－（s －2t ）2； （11）（t －3）2（t ＋3）2（t 2＋9）2． （12）992－98×100； （13） 49×51－2499． （14）（x －２y ）（x ＋２y ）－（x ＋２y ）2（15）（a ＋b ＋c ）（a ＋b －c ） （16）（２a ＋１）2－（１－２a ）2 （17）（３x －y ）2－（２x ＋y ）2＋５x （y －x ）2、先化简。
再求值：（x ＋２y ）（x －２y ）（x 2－４y 2），其中x ＝２，y ＝－１.3、.解关于x 的方程：（x ＋41）2－（x －41）（x ＋41）＝41. 4、已知x －y ＝９，x ·y ＝５，求x 2＋y 2的值.5、已知a （a －１）＋（b －a 2）＝－７，求222b a +－ab 的值6、.已知a ＋b ＝7，ab ＝10，求a 2＋b 2，（a －b ）2的值7、.已知2a －b ＝5，ab ＝23，求4a 2＋b 2－1的值． 8、已知（a ＋b ）2＝9，（a －b ）2＝5，求a 2＋b 2，ab 的值．9、.已知 2()16,4,a b ab +==求223a b +与2()a b -的值。
10、.已知()5,3a b ab -==求2()a b +与223()a b +的值。
11、.已知6,4a b a b +=-=求ab 与22a b +的值。
4A英语译林版练习期末
（一）英语首字母专项练习1．What a_________ do you like? I like dogs.2．I love cats . T_________ cute.3．I like t________ very much. Because they are brave(勇敢).4．I like h____________. They can run fast.5．What does he have? He h________ a yo-yo.6．My father h_________ some footballs.7．Mike h___________ a model plane.8．_______ go to the park. Good idea.9．I’d like to m________ a fruit salad.10．Do you have a________ fruit?11．I like m___________. They’re sweet.12．What fruit do you like? I like g____________.13．Look at o________ fruit salad. How nice.14．I can play tennis well. C__________15．How many stickers do you have? I have t___________.16．C_______ I have a look? S___________.17．I have e_______________ pencils. They are in different(不同的) colours. 18．What sports do you like ? I like t________ t__________.19．I can’t jump high. Have a r___________.20．What can you do ? I can s_____________.21．I am s____________ because I didn’t pass the exam（通过考试）22．The parrot can f_________ high.23．Mike can’t play the piano. Helen can’t e___________.24．What can you do ? I can play b____________.25．L_________are the king of the forest（森林）.26．How many r__________ (机器人)do you have? I have sixteen.27．The story is so f_________. We all like to read it.28．What’s in the b____________(盒子)? There are some dolls in it.29．Do you like m__________? Yes, they are clever.30．The apples are o_________ the tree. There is a cat i_________ in the tree.（二）句子专项练习I like pandas.（改为一般疑问句）______________________________________2. We have some purple grapes. （改为一般疑问句）_________________________________3. I can fly too. （改为否定句）_____________________________________4. Liu Tao and Mike like cats. （对划线部分提问）___________________________________5. Mike can make cakes. （对划线部分提问）______________________________________6. I like bananas. （改为否定句）______________________________________7. I have nineteen pencils. （对划线部分提问）_____________________________________8. Helen can play table tennis very well. （改为一般疑问句）___________________________9. I have some lovely dolls. （对划线部分提问）____________________________________10. These dogs are so lovely. （改为一般疑问句）___________________________________11. Do you like puppets, Yang Ling and Su Hai? （否定回答）__________________________（四）检测小练一、用所给词的适当形式填空。
【期末专项】U1-U8句子排序练习(有答案)--译林英语四年级上册
译林英语4A期末句子排序专项练习（有答案）一、将下列句子重新排列为一段通顺的对话。
A.Hi, Tim.B.I like grapes. They are sweet.C.OK. Here you are.D.Hi, Mike. What fruit do you like?E.Yes. I’d like five, please.F.Me too. I have some grapes.G.How many do you have?H.Thank you very much.二、将下列句子重新排列为一段通顺的对话。
A.Seventeen. Do you have any robots?B.Look at my robots.C.Can I have a look?D.They’re nice. How many robots do you have?E.Sure.三、将下列句子重新排列为一段通顺的对话。
A.Hi, Liu Tao.B.This toy monkey is for you.C.Hi, Mike. Is this your bag?D.What’s in your bag?E.Yes, it is.F.Look! These are my new toy monkeys. Do you like monkeys?G.Wow! Thank you.A. Hi, Tim.B. I like grapes. They are sweet.C. OK. Here you are.D. Hi, Mike. What fruit do you like?E. Yes. I’d like five, please.F. Me too. I have some grapes.G. How many do you have?H. Thank you very much.五、将下列句子重新排列为一段通顺的对话。
三角函数专项练习60题(有答案)
三角函数专项练习60题(有答案)题目1：已知三角形ABC，角A的补角是30度，角B的补角是60度，求角C的度数。
答案：90度。
题目2：已知sin(60°)的值等于√3/2，求cos(30°)的值。
答案：√3/2。
题目3：已知cos(30°)的值等于0.866，求sin(60°)的值。
答案：0.866。
题目4：已知tan(45°)的值等于1，求cot(45°)的值。
答案：1。
题目5：已知cot(60°)的值等于√3/3，求tan(30°)的值。
答案：√3。
题目6：已知cos(45°)的值等于0.707，求sin(45°)的值。
答案：0.707。
题目7：已知sin(45°)的值等于0.707，求cot(45°)的值。
答案：1.题目8：已知sin(30°)的值等于0.5，求cos(60°)的值。
答案：0.5.题目9：已知cot(30°)的值等于√3，求tan(60°)的值。
答案：√3.题目10：已知cos(60°)的值等于0.5，求sin(30°)的值。
答案：0.5.题目11：已知sin(90°)的值等于1，求cos(0°)的值。
答案：1.题目12：已知sin(0°)的值等于0，求cos(90°)的值。
答案：0.题目13：已知cos(90°)的值等于0，求sin(0°)的值。
答案：1.题目14：已知cos(0°)的值等于1，求sin(90°)的值。
答案：0.题目15：已知cot(45°)的值等于1，求tan(45°)的值。
答案：1.题目16：已知tan(60°)的值等于√3，求cot(60°)的值。
答案：√3.题目17：已知cot(30°)的值等于√3/3，求tan(30°)的值。
译林版4A英语期末专项复习：单项选择
译林版4A英语期末专项练习：单项选择一、选择填空。
(10分)( )1,May I have a copybook_________ Su Yang?A.toB.forC.atD.in( )2,I like my panda. --__________________A. Yes , it is.B. No,it isn't.C.Me,too.D.Yes ,I do. ( )3,--That's ______rabbit, I think. --Yes,it's_______rabbit.A.her,hisB.your,my Cyour,his D.you ;me ( )4,--What's the matter? --______________A.Fine,thank you.B.I'm too hot.C.It's eleven.D.Yes,I am ( )5,--Can you ___________the lion? --No,I______________A.look;am notB.see;can'tC.see;can D;look;can't ( )6,I'm __________.May I have some tea?A. hungryB.thirsty Cpretty. D.ill.( )7,Are you tired?______________.A.Yes,he is.B.No,I'm tired.C.No,I'm ill.D.No,I don't. ( )8,What a nice dress! ______________A.That's all right.B.Thank you.C.That's right.D.I'm sorry. ( )9,--Do you like this__? --Yes,I do. I love __________A.dolls;dollsB.doll;doll C;dolls;doll D.doll;dolls ( )10,--What time _____ you get up? --I get up ______six twenty-five.A.are;atB.do;it'sC.do;at D;do;/1、B2、C3、B4、B5、B6、B7、C8、B9、D 10、C二、选择填空。
够不够,专项练习
够不够专项练习
1、小朋友去郊游，活动费要57元，午餐费要38元，老师付出2张50元，够不够？
2、幸福小学一1班有38人，一2班有41人，春游的时候来了两辆车，每辆上可以坐42人，车够不够呢？
3、妈妈快要过生日了，小丁丁带了100元钱去商店，他想买38元的一束花和68元的一个蛋糕，钱够不够？如果够，还剩多少钱？如果不够，还差多少钱？
4、李老师有35块大白兔奶糖，她用其中13块换了张老师17块话梅糖，现在李老师想把手上的糖分给40个小朋友，够分吗？如果够还剩几块？如果不够，还剩几块？
5、妈妈带小胖买玩具，一架飞机43元，一只皮球30元，妈妈带了100元够吗？如果够，还剩多少钱？如果不够，还缺多少钱？
6、一本童话书12元，一本科技书15本，妈妈带了20元，钱够吗？如果够，还剩多少钱？如果不够，还差多少钱？
7、布置教室一共需要20多花，小亚上午做了7朵花，下午再做16多花，够不够？。
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一、用括号内动词的适当形式填空。
1、We _______(not watch) TV on Monday.
2、Nick _______(not go) to the zoo on Sunday.
3、______ they ________(like) the World Cup?
4、_______ your parents _______(read) newspapers every day?
5、Mike _______(like) cooking
6、Su Hai and Su Yang _______(have) eight lessons this term.
二、改变句型
1、Daniel watches TV every evening.(改为否定句)
___________________________________________________ 2、She likes milk.(改为一般疑问句，作肯定回答)
___________________________ 3、Amy likes playing computer games.(改为一般疑问句，作否定回答)
___________________________________________________ 4、We go to school every morning.(改为否定句)
_______________________________________________________ 5、He speaks English very well.(改为否定句)
___________________________________________________ 6、I like taking photos in the park.(对划线部分提问)
________________________________________________________
一、写出下列动词的现在分词：
play________ run__________ swim _________ make__________
go_________ like________ write________ ski___________ read________ have_________ sing ________ dance_________ put_________ see________ buy _________ love____________ live_______ take_________ come ________ get_________
stop_________ sit ________ begin________ shop___________
二、用所给的动词的正确形式填空：
1、The boy __________________ ( draw)a picture now.
2、Listen，some girls _______________ ( sing)in the classroom .
3、My mother _________________ ( cook )some nice food now.
4、What _____ you ______ ( do ) now?
5、Look，they _______________( have) an English lesson .
6、They ____________(not water) the flowers now.
7、Look，the girls ________________(dance )in the classroom .
8、What is our granddaughter doing? She _________ (listen ) to music.
9、It’s 5 o’clock now. We _____________(have)supper now.
10、______Helen____________(wash )clothes? Yes, she is .。