七年级下册数学创优作业答案

七年级下册数学创优作业答案篇一

四年级下册数学试题及答案

《四》年级《数学》 5.10

一、填空。

1、18047是由1个( ),8个( ),4个( )和7个( )组成,它的计数单位是( ). 2、38厘米＝( )分米；628克＝( )千克

3、在一个三角形中，∠1＝65°，∠2＝40°∠3＝( )，这是( )三角形。在一个直角三角形中，其中一个锐角是40，另一个锐角是( )。

4、把56.05的小数点先向右移动两位,再向左移动三位,结果是( ). 5、根据450-150=300和35÷7=5,直接填写下列格式.

（ ）＋（ ）=（ ） （ ）÷（ ）=（ ） （ ）-（ ）=（ ） （ ）×（ ）=（ ） 6、在○里填“＜、＞或＝”。

7.218○7.22 6.3○6.300 1.8×1○1.8 0.4元○0.399元 0.1米〇1厘米 0.51千克〇0.59千克 10.01 〇10.10 二、选择题。

1、大于4.9而小于5.2的小数有( )。

A、0个 B、1个 C、3个 D、无数个 2、与7.8大小相等的三位小数是（ ） A、7.800 B、78.8 C、7.080

3、在60米跑步比赛中，小刚成绩是7.7秒，小强的成绩是8.8秒。他们的成绩( )。

A、小刚好 B、小强好 C、无法判断

4、用38个百分之一组成的小数是（ ） A、0.038 B、3.8 C、0.38

5、用一个5倍的放大镜看15度的角，这个角成了（ ）的角。 A、75度 B、15度 C、3度 6

、下面三组小棒，不能围成三角形的是（ ）。

3厘米 4厘米

A、 B、 C、

3厘米1厘米

5厘米

4厘米

3厘米

3厘米

6厘米

7、小兔要给一块地围上篱笆，（ ）的围法更牢固些。

A、

B、

C、

8、如图，从上面看得到的图形是( )。

三、动脑动手。

1、按要求画图。画一条线段，把它分成两个完全一样的钝角三角形。

2、在点子图上按要求画图。 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·

①直角三角形 ②等腰梯形

3、求下面各角的度数。

A

B ∠B=∠C=70度 ∠A= ∠B是直角, ∠C=65度, ∠A= 四、计算。 1、直接写得数 。

24×5= 99+68= 42 －24 = 100－35= 4×25= 28×40= 293-91= 15×80= 2、写出括号里代表的数

(1) 6.08 ×（ ）＝6080 (2) 3.33×（ ）＝333 (3) 10.28 ÷（ (4) 83 ÷（ ）＝ 0.038 (5) 1.004×（ ）＝100.4 (6) 2.85÷（

1.028 ）＝0.285 ）＝

《四》年级《数学》

3、能用简便方法计算的用简便方法计算。

35＋27 ＋65 872－481－219 4×(25＋22 )

101×67 65×199+ 65 48＋372＋42＋1628

五、解决问题。

1、一筐苹果连筐共重180千克，卖去苹果的一半后，连筐共重92千克，一筐苹果重多少千克？筐重多少千克？

2、学校举行运动会，三年级有76人参加，四年级参加的人数正好是三年级的2倍。三、四年级一共有多少人参加？

3、某工厂运来184吨煤，前8天平均每天用去15吨。剩下的预计4天用完，平均每天可用多少吨？

4、李工程师为市民广场设计了一个宽是15米的长方形花圃，后来他又将这个花圃的宽增加了8米，于是这个花圃的面积增加了240平方米。现在这个花圃的面积是多少？

四年级数学检测题答案

一、 填空：（每空1分 共22分） 1、 10、 1、 0.1、 0.001、 0.001 2、 3.8、 0.628

3、 75度 、 锐角三角形、 50度 4、 5.605

5、 150+300=450 35÷5=7 450-300=150 7×5=35 6、 ＞、 =、 =、 ＞ ＞、 ＜、 ＜

二、 选择题（每小题1分 共8分）

1、D 2、A 3、A 4、C 5、B 6、B 7、B 8、C

三、动脑动手（第1题2分、 第2题每个图形2分 共4分、 第3题每小题2分 共4分） 四、计算

1、直接写得数（每题0.5分 共4分） 2、（每小题2分 共12分） 3、简算（每题3分 共18分） 五、解决问题（26分）

1、（1）一筐苹果中176千克 （4分） （2）筐重4千克（3分） 2、228人（6分） 3、16吨（6分） 4、690平方米（7分）

七年级下册数学创优作业答案篇二

《一课一练创新练习》数学五年级下册人教版参考答案

《一课一练创新练习》数学五年级下册人教版参考答案

【网络综合 - 小学答案】

这篇关于人教版下册数学期末试卷及参考答案，是无忧考网特地为大家整理的，希望对大家有所帮助！

★一、看清题目，巧思妙算。(共28分)

1、直接写出得数：(4分)

37 + 27 = 23 - 16 = 0.32×99 + 0.32= 0.25= ( )( )

1- 56 = 13 + 14 = 25×0.07×4= 5 14 = ( )( )

2、求下列各组数的最大公因数与最小公倍数，在()里写每组的最大公因数，在[]里写每组的最小公倍数。(4分)

8和12 11和 33

( ) ( )

[ ] [ ]

3、解方程：(8分)

X- 56 = 56 8X = 4 X÷12.5 = 8 12.7+ X = 15.7

3、计算下列各题，能简算的要简算。(12分)

23 + 45 - 310 118 - ( 56 + 38 )

67 -( 1114 - 12 ) 59 + 411 + 611 + 49

【命题意图：本册教材在计算方面主要学习的是解方程、异分母分数加减法。所以本大题主要安排了解方程、异分母分数加减法以及相应的简算，同时也穿插了小数的加减乘除、求最大公因数和最小公倍数等。本大题主要目的是考查学生对本册计算内容的掌握程度以及灵活计算的能力和意识。】

二、细心考虑，认真填空。(共27分，除第11题3分外，其余每空1分。)

1、分数单位是 17 的最大真分数是( )，最小假分数是( )，把这个假分数再添上( )个这样的分数单位就是最小的素数.

★2、小明在教室里的位置用数对表示是(5，3) ，她坐在第( )列第( )行。小芳坐在小明的正前方，用数对表示她的位置是( ， )。

3、在( )里填上最简分数。

25秒=( )分 30厘米=( )米 250千克=( )吨

4、在 里填上“>” “<” “=”。

37 821 23 34 89 32 ★ 34 0.7499

5、( )÷8 = 1216 = 3( ) = ( ) <填小数>

第25届 第26届 第27届 第28届

16 16 28 32

★6、中国历届奥运会获得的金牌数如右表：

(单位：枚)

第27届奥运会获得的金牌数是第26届的( )( ) ，第28届奥运会获得的金牌数是第27届的( )( ) 。

7、用圆规画一个周长是25.12厘米的圆，圆规两脚间的距离是( )厘米，画出的圆的面积是( )平方厘米。

★8、用边长(整分米数) 分米、 分米、 分米的正方形都能正好铺满长16分米、宽12分米的长方形。

9、自然数a和b的最大公因数是1，那a和b的最小公倍数是( )。

★10、 a ×4 b +8 c ÷9 4 ，题中a是( )

【命题意图：以上填空题，涉及到的知识点有：分数单位(1)、确定位置(2)、约分(3)、比较分数的大小(4)、分数的基本性质和分数与除法的关系(5)、求一个数是另一个数的几分之几及约分(6)、求圆的半径和面积(7)、公因数(8)、最小公倍数(9)、解决问题的策略“倒推法”(10)。主要考查学生对这些知识的掌握以及综合应用知识的能力。2008北京奥运会即将举行，第6题是营造一下奥运氛围;第8题是考查学生对“公因数”是否有深刻体验;第10题是考查学生是否能灵活运用“倒推法”求出字母a的值。】、

11、

【命题意图：本题是本册统计知识中的复式折线图，主要考查学生对复式折线统计图的读图能力以及分析数据的能力，由此增强统计观念，培养统计能力。】

三、慎重选择，择优录取。(共5分)

1、5米长的花布做了6条同样大小的童裤，每条童裤用这块布的( )。

A、56 米 B、 16 C、谁在乎

2、世界上第一个把圆周率的值精确到六位小数的数学家是( )。

A、刘徽 B、祖冲之 C、 欧几里德

★3、今年“国庆七日长假”，陆老师想参加“千岛湖双日游”，哪两天去呢，陆老师共有多少种不同的选择? ( )

A、5种 B、6种 C、4种

★4、右边的分数中：59 、 37 、 1224 、 911 、13 、45 ， 比 12 大的有( )个

A、3个 B、4个 C、2个

★5、下图中哪个图形的周长最长? ( ) a cm

a cm

七年级下册数学创优作业答案篇三

七年级英语创优作业第六单元

班级： 姓名： Part 1

一、英汉互译

1. 三个草莓下一周

3. 考虑 5. some pears

二、根据首字母或汉语提示完成单词

6.---let’s eat i ---Great! I like it very much.

7. Lucy’s brother doesn’t like 西红柿) . 草莓) very much. 三、用所给动词的适当形式填空。 12.let’s 13.Jim’s mother 四、按要求做题。

16.Does your aunt like apples? 对画线部分提问)

宣城市阳光中学英语学课堂创优作业 第1页

班级： 姓名：

Part 2

一、英汉互译

1. 一个鸡蛋一些大米

3. 六个胡萝卜 5. nine apples

二、用所给词的适当形式填空。 10. 三、按要求做题。

11. I like apples. (用Gina 代替 I 作主语) 12. He likes ice cream.(改为否定句) 13. Marry’s uncle likes chicken for dinner. (改为一般疑问句) Marry’s uncle ？

14. 对画线部分提问)

宣城市阳光中学英语学课堂创优作业 第2页

班级： 姓名： ？

15. She doesn’t have eggs. (改为肯定句)

Part 3

一、英汉互译

1.健康的食物排球明星

3.午饭后 5. her eating habits

二、根据首字母或汉语提示完成单词

1. 健康的) food.

2. Jenny doesn’t like chicken. She doesn’t want to3. 4. 5. 明星).

三、用所给词的适当形式填空

1. 2. 3. 4. 5. 宣城市阳光中学英语学课堂创优作业 第3页

班级： 姓名： 四、按要求做题

1. They like bananas. (改为一般疑问句) 2. Jane likes pears very much. (改为否定句) 3. food , for,he,lots,lunch,of,has. (连词成句)

Part 4

一、单项选择

1.---- Can I help you ? ----Yes ,I’d like five ______and some pears .

A. potato B. tomatoes C. meat D. banana

2. Come on ,children. Help yourselves to some ______if you like .

A. fish and chicken B. fishes and chicken C. fish and chickens D. fishes and chickens

3. Kate ____some apples every day.

A. has B. have C .eat D. ate

4.Do you have _____lunch at school ?

A. a B. an C. the D. /

5 -----What do you have _____supper ?

------Chicken and tomatoes.

A. at B. on C. for D. In

6 Which do you like better ,broccoli _____salad ?

A. or B. in C. on D. and

7. He eats _______for dinner .

宣城市阳光中学英语学课堂创优作业 第4页

班级： 姓名： A. many foods B. much foods C. a lot of foods D. a lot of food

8.Bob and Tom _____fruit .

A. are B. don’t like C. likes D. doesn’t like

二、改正句中的一处错误

1．Apples, bananas and orange are fruits. ________________

2.Miss Gao haves eggs and milk for breakfast. ________________

3.He likes salad but he doesn’t likes carrots. ________________

4.Does he and you eat lots of fruit? ________________ Part 5

一、选择正确的词填空 am is are do does can don’t

1.I ________ a student. My name ________ Li Hong.

2.She ________ my friend. Her name ________ Wang Mei.

3.Where ________ your balls? They ________ under the bed.

4.________ those apples? Yes, they ________.

5.On Sunday, I ________ watch TV. I must do my homework.

6.— ________ her daughter have a nice English name? — Yes, she does.

7.— ________ you spell the word? — Sorry, I can’t

8.________ his grandparents like him?

9.— Where ________ I? — You ________ in a new place.

10.— What ________ your uncle love? — He loves sports.

二、书面表达

宣城市阳光中学英语学课堂创优作业 第5页

七年级下册数学创优作业答案篇四

2013年六年级数学优化设计下册答案

六年级数学下册优化设计答案

七年级下册数学创优作业答案篇五

二年级上册数学1-8单元检测题(创优作业100分){七年级下册数学创优作业答案}.

七年级下册数学创优作业答案篇六

七年级英语下册试题及答案

泰来县2013-2014学年度下学期期末测评

七年级英语试题

考生请注意：本试卷共五道大题，满分100分，答题时间90分钟。

一. 单项选择。(15分){七年级下册数学创优作业答案}.

( )1.－What did you do last Friday?

－

Tim played _____soccer and I played _____ piano. A. the, the B. the, / C. /, the

( )2－_____ you go to the museum with your father yesterday? －Yes. We _____there in the afternoon. A. Did; go B. Do; go C. Did; went ( )3－_______________? －He is short and fat .

A. What is your brother ？ B. What does your brother look like？ C. What does your brother do?

( )4．There ______ some milk in the glass. A. is B. are C. have

( )5. －_________ is it from your home to school? －It‟s about two kilometers.

A. How far B. How long C. How soon

( )6. My grandma likes the big house _____ a beautiful garden. A. with B. have C. has

( )7. ________ the weather like in Tailai today ? It‟s cloudy. A. How‟s B. What C. What‟s

( )8. Helping others can make us ______ very happy. A. to feel B. feeling C. feel

( )9. Last weekend, I didn‟t _______ my aunt. A. visited B. saw C. visit ( )10－It‟s awful today!

－Yes. It‟s windy and it‟s _______ .

七年英语试卷 第1页（共6页）

A. snow B. snows C. snowing

( ) 11. Tom likes to ____ jokes. We all like him. A. say B. tell C. speak D. talk

( ) 12.---Can I help you ?---I‟d like to drink ______.

A. some oranges

B. oranges C. some orange ( )13. it‟s a fine day. What about ______ ? A. to go out for a walk B. going out for a walk C. going out for a walking

( )14－Would you like to eat dinner with me? －______________. A. Yes, please B. Yes, I‟d love to. C. I‟d like. ( )15．—Hi, Betty! __________?

—She is buying some food for her mother.

A．What is Lily doing？ B．What does Lily do？ C．What did Lily do？

二、完形填空 （10分）

I like eating rice, noodles, strawberries, ice cream, hamburgers and so on. But my favorite __1__ is dumplings. Every Sunday, my mother __２__ many dumplings for me. If she has __３__ time, I‟ll go to the supermarket to __４_ some. Dumplings look __５_ white boats(船). They are very delicious. __６__ my birthday every year, I usually help my mother make a lot of dumplings. Do you know the __７__? Because I often ask some friends to __８__ them with me. There are different kinds of __９__ and meat in them. My friends __１０__ like to eat them very much.

( ) 1. A. food B. dessert C. fruit ( ) ２. A. do B. does C. makes ( ) ３. A. some B. no C. any ( ) ４. A. want B. order C. buy ( ) ５. A. for B. at C. like ( ) ６. A. In B. On C. About ( ) ７. A. kind B. size C. reason ( ) ８. A. eat B. drink C. like

( ) ９. A. noodles B. dumplings C. vegetables ( ) １０. A. all B. every C. both

七年英语试卷 第2页（共6页）

三．补全对话。（２０） (A) A: Is that your pen pal, Sarah? B: １_______________ A: Oh. What‟s his name? B: His name is David. A: ２_________________ B: No, he isn‟t. He‟s from America. A:３_________________

B: Oh, he‟s a bank clerk. But he doesn‟t like his work.{七年级下册数学创优作业答案}.

A: ４__________________ B: He wants to be an actor.

A: ５________________ I don‟t think it‟s an exciting job.

B: But I think it‟s very interesting.

（Ｂ） A：Hi, Lucy. B: Hi, Bob.

A: ①______________________________________? B: My weekend was great.

A:②.__________________________________________?

B: On Saturday morning I played tennis, on Sunday morning I went to the zoo. A: Did you see elephants in the zoo? B: Yeah, I did.

A: ③. __________________________________________________? B: I love elephants.

A: Oh, is that you brother? B: No, it isn‟t.

A:④ _____________________________________________________? B: He‟s really tall. And he has curly hair. A: By the way(随便问一下). ⑤ ____________________________?{七年级下册数学创优作业答案}.

B: I have many rules at my school. We can‟t run in the hallways and can‟t arrive late for class. A: Wow, it‟s six o‟clock now. Let‟s go home. B: OK. Good-bye. A: Bye-bye!

四．阅读理解。（４０分）

(A)

Mr. Jones and Mr..Brown work in the same office (办公室).One day Mr. Jones says to Mr. Brown , “I will have a small party at our house on Monday evening . Would you and your wife like to come ?”

七年英语试卷 第3页（共6页） Mr. Brown says , “Thank you very much . I‟d love to , but let me ask my wife first . ” So Mr. Brown goes to the other room and telephones his wife . Then he comes back and looks very worried .

“What‟s the matter?” asks Mr. Jones . “Is you wife there at home ?”

“No,” answers Mr. Brown “She isn‟t there . My small son answers the telephone . I say to him , „Is your mother there , David ?‟ and he answers „No , she isn‟t in the house .‟ „Where is she ?‟ I ask , „She is somewhere outside(在外面) .‟ „What‟s she doing ?‟ „She is looking for me .‟”

阅读短文，判断正误。正确的写“T”，错误的写“F”。

( )1．There is a party at Mr. Jones‟s house on Monday evening . ( )2．Mr. Jones asks Mr. Brown and his wife to go to the party . ( )3．The telephone is in Mr. Brown‟s office.{七年级下册数学创优作业答案}.

( )4．Mr. Brown speaks to Mrs. Brown on the telephone . ( )5．Mrs. Brown is looking for her son . ( B)

I‟m Tony. My best friends are Frank and Cindy. We often do many things together(一起). Frank lives next to my home and we are in the same class. He is thirteen years old and tall and medium build. He has curly hair and blue eyes. He‟s good-looking and very clever. He‟s good at math and often helps me with my homework. He likes wearing black pants and yellow T-shirts. Cindy doesn‟t go to my school. She‟s eleven years old. She is thin and medium height. She has curly blonde hair and her eyes are brown. She is good-looking, too, but a little bit shy. She is good at playing the guitar. Her favorite subject at school is music. She often teaches Frank and me to play the guitar after class.

The three of us have great fun together, and we help each other and sometimes play video games at my house.

( ) １. What things do the three children do together? They ___________.

A. play video games and play the guitar B. play the guitar C. play video games ( ) 2. _____________ eyes are blue. A. Tony‟s B. Frank‟s C. Cindy‟s ( ) 3. _______________ good at math. A. Tony is B. Frank is C. Cindy is ( ) 4. ________________ is good-looking, but a little bit shy. A. Cindy B. Frank C. Tony ( ) 5. Where do they play video games? _________________.

A. at Cindy‟s house B. at Frank‟s house C. at Tony‟s house

(C )

Here is a menu for a fast food restaurant. The prices are in American money, called dollars and cents. There are 100 cents in a dollar.

七年英语试卷 第4页（共6页）

( ) 1. From the menu, how much is a small hamburger?

A. One hundred and eighty dollars

B. Two dollars and thirty cents

C. One dollar and eighty cents

( ) 2. If you have only three dollars, what can you buy?

A. A large salad and a large ice cream B. A large chicken burger and a small cup of tea C. A small vegetable burger and a large chocolate

( ) 3. Jam is a kind of _____.

A. main meals B. side dishes C. desserts

( ) 4. What can‟t we buy in the restaurant?

A. Coffee. B. Beef. C. Hamburger.

( ) 5. A thirsty boy has only seventy cents. He may ask for _____. A. tea B. Coca-Cola C. orange juice

(D)

One weekend , a wife and a husband（丈夫）went to visit a shop in Tokyo. After they got

back home ,they couldn‟t find their camera(照相机).They thought the camera must be in the shop . After a few weeks , they went to that shop again and the boss of the shop gave their

camera back to them.

When their pictures of the camera came out ,the husband saw two pictures he did not take .

One is a man standing at the door of the shop .In his hand there is a piece of paper（纸） with some words on it “I find your camera .” The other is a boy with a piece of paper in his hand .

There are some words on the paper too “I take the pictures”.

1. What did the wife and her husband do one weekend ?

______________________________________________________________________

2. When did they find their camera was lost?

__________________________________________________________________

七年英语试卷 第5页（共6页） 3. Did they find their camera after a few weeks?

______________________________________________________________________ 4. Who found the camera and who took the pictures

___________________________________________________ 5. come out 在此的汉语意思是______________

六. 书面表达（15）

前天是星期天，Sandra上午做作业、打扫屋子；中午因爸妈不在家，自己做了一大碗西红柿面吃；下午去看了奶奶，并帮奶奶洗了衣服；晚上陪奶奶一起看电视。Sandra

度过了忙碌的一天，感到有点累。假如你是Sandra，请给你的好朋友Sally写一封信，告诉她你是如何度过周日的。60词左右（开头和结尾已给出，不计入总词数）。 Dear Sally, How‟s it going? I had a busy Sunday. ______________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ____________________________________________________________________________ ___________________________________________________________________________

____________________________________________________________________________

____________________________________________________________________________

____________________________________________________________________________ __________________________________________________________________ Yours,Sandra

七年英语试卷 第6页（共6页）

答案 一． １－１５ CCBAA ＡＣＣＣＣ ＢＣＢＢＡ

二. 16-20 ACBCC 21-25 BCACA

三．补全对话。 ( A) BDGEF

(B) 1.How was your weekend 2. What did you do

3. What do you think of elephants 4. What does your brother look like 5. What are the rules at your school 四.

A) TTFFT B) CBBAC C) CACBA

D) 1. They went to visit a shop in Tokyo. 2. After they got back home. 3. Yes, they did.

4. A man found the camera and a boy took the pictures 5. 冲洗