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星期天作业(1)

星期天作业(1)
星期天作业(1)

胡寨中学九年级英语星期天作业(1)

8B Unit5 单元测试卷

一、选择填空(20分)

( )1.—Trains ______ be the main kind of transport in China.

—Now, people ______ travelling by plane.

A. used to; is used to

B. used to; are used to

C. are used to; are used to

D. are used to; used to

( )2.Many kids find_____ interesting to play computer games.

A. this

B. that

C. it

D. it was

( )3.______ a week do you go to the library? Twice a week.

A. How far

B. How long

C. How often

D. How many times ( )4.It was too noisy_____ we couldn’t hear_____ he said at the meeting.

A. so, that

B. so, what

C. that, what

D. for, that

( )5.We don’t believe_____ young children can do_____ much work.

A. so, so

B. so, such

C. such, so

D. such, such

( )6.It is such_____ that you must_____ on it.

A. hard work, work hard

B. a hard work, hard work

C. hard working, work hard

D. work hard, work hard

( )7.He’s never visited France, ______he?

A. isn’t

B. is

C. has

D. hasn’t

( )8.People in poor areas were grateful _____ those people _____ their kindness.

A. for, to

B. to, for

C. to, to

D. for, for

( )9.After hearing the bad news, he seemed _______.

A. sad

B. to sad

C. sadly

D. be sad

( )10.H e didn’t take part in the activity _____ the heavy snow.

A. because

B. as

C. since

D. because of

( )11.—Shall I tell him the news?—No, you ______. I’ve told him already.

A. mustn’t

B. can’t

C. needn’t

D. shan’t

( )12.B y _____ local doctors and nurses, we hope _____ more patients.

A. train, help

B. training, to help

C. training, helping

D. train, helping ( )13.S am _____ spend all his pocket money, but now he_____ saving some of it.

A. was used to, used to

B. used to, used to

C. was used to, is used

D. used to, is used to ( )14.T here used to be a wooden bridge, _______?

A. usedn’t it

B. used there

C. didn’t there

D. used there not

( )15.—You did a great job. I’m proud of you. —_________, Dad.

A. Not at all

B. I’m really grateful

C. That’s right

D. Thanks a lot.

( )16.—Can you wait for ______minutes?

—No, we must hurry up. We have _____ time left.

A. a little, few

B. few, a little

C. a few, little

D. a little, little

( )17.C ould you tell me_____?

A. what happened to him

B. what did he happen

C. what did he happen to

D. what he happened

( )18._____ is enough time to do our work well.

A. We all need

B. All we need

C. We need all

D. What we need to

( )19.I t’s _____ noisy here_____ I can’t hear you clearly.

A. very, because

B. because, that

C. such, that

D. so, that ( )20.T hese children should go to school_____ working to support their families.

A. of

B. instead

C. for

D. instead of

四、写单词(15分)

1.I write to my parents every week, _____________(主要) on Sundays.

2.Do you know the saying “A friend in need is a friend ____________(真正地)”?

3.Edison had so many_____________ (发明) in his life.

4.The changes of weather always ______________(影响)our moods.

5.Have you ever been______________(惩罚)by your father?

6.Mrs Wang often ______________(对待) the students kindly when she was a teacher.

7.We are _______________(自豪)of your great success.

8.Her _____________(丑陋) doesn’t make her sad all the time.

9.By ________________(培训)the dogs,Mr. Wang hopes they can guide the blind people across the road.

10.This coat is so expensive. I can’t ______________(买得起)it.

11.The doctors are trying to save 13 ______________ (病人) lives.

12.Dr. Li o_____________ on 10 people with eye problems the day before yesterday.

13.An i______________ had an interview with the old scientist this morning.

14.Many people die because of different i______________ in poor countries.

15.Good friends should share joy and s______________ with each other.

五、用所给单词的适当形式填空(7分)

1.Spring Bud project is an_______________ (organize) that helps poor young girls return to school.

2.My grandfather died 2 years ago because of the lack of __________ (treat).

3.________________ (pollute) has been a very serious problem in the world.

4.Many people in poor areas don’t have enough money for_______________ (medicine) treatment.

5.I read an _______________ (advertise) for the camera in the newspaper just now.

6.The students talked so______________ (excite) that they forgot the time for class.

7.The boy did his homework so________________ (care) that the teacher got angry.

七、动词填空(10分)

1.We all hope the show tomorrow______________ (be) a success.

2.His job was_______________ (provide) the performers with water.

3.I ________________ (walk) on the road when I met a classmate of mine.

4.I heard Mother_______________ (talk) with Father in the sitting room at ten last night.

5.I must leave. Someone_________________ (wait) for me outside.

6.I’m not used to ________________ (go) out on rainy days.

7.My computer doesn’t work well. It needs_____________ (repair).

8.My mother used to________________ (spend) much money______________ (buy) new clothes.

9.Thank you for________________ (operate) on them.

十一、书面表达:(15分):

在了解了一些国际慈善机构的情况后,Sandy对UNICEF非常感兴趣,决定向它捐款来帮助那些贫困的儿童。根据提示写一篇80字左右的小短文。

1.过去常把零花钱用于买零食上。在玩电脑游戏上花太多的时间。

2.现在想把自己的零花钱捐献给UNICEF,为这个慈善机构组织募捐活动,让更多的人来支持这项工作。

3.将来长大后要做一名老师,到贫穷的山村教孩子们知识,让每一个孩子都受到很好的教育。

4.她希望。。。。(适当扩展)。

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

参考答案:

一、选择填空.(20分)BCDBC ACBAD CBDCD CABDD

二、完形填空:(10分)CDABA BCCAD

三、阅读理解:(20分)CBDAC ACDDB

四、根据中文写单词:(15分)

1.mostly/mainly

2. indeed

3. inventions

4. affect

5. punished

6. treated

7. proud

8. ugliness

9. training 10.afford 11. patients’12. operated 13. interviewer 14. illnesses 15. sadness

五、用所给单词的适当形式填空:(7分)

1. organization

2. treatment

3. Pollution

4. medical

5. advertisement

6. excitedly

7. carelessly

六、动词填空(10分):

1.will be

2. to provide

3. was walking

4. talking

5. was waiting

6. going

7. repairing / to be repaired

8. spend…buying

9. operating

七、句型转换(10分):

1. too poor

2. so…that

3. support , donating

4. Did , use

5. operated on

6. so that

7. instead of

8. are there 9. seems to be

八、连词成句(8分)

1. UNICEF wants to make the world a better place for children.

2. Dr. Ma is used to the unusual lifestyle.

3. UNICEF was set up because of the war.

4. I used to spend all my pocket money on snacks.

九、中译英:(15分)

1. I am used to having a break/rest after lunch.

2. Uncle Bob used to live abroad.

3. It’s such a difficult problem/so difficult a problem that nobody/no one can work it out.

4. Doing voluntary work for charity is so meaningful/It’s so meaningful to do voluntary work for charity that many people want to do it.

5. I hope to have a car like his/ that I can have a car like his.

十、书面表达:(15分):

Sandy used to spend her pocket money on snacks and playing computer games. But after she learned something about international charities, she has become interested in UNICEF. She decides to donate her pocket money to the UNICEF and organize some fund-raising activities for it. She wants to encourage more people to support this work. Sandy hopes to be a teacher when she grows up. she would like to go to the poor village to teach the children. Her dream is to let each child receive good education. She hopes this world will be a better place for the children.

周末作业(含答案)

物理周末综合练习 班级 _____________姓名 ____________ 1、 摩擦产生的电荷,在生产和生活上给人们带来了很多麻烦,下列各现象中,不是由于摩擦起电引起 的是( ) A .纤布料.的衣服容易吸附灰尘 B .冬天用湿手去摸室外的铁棒时,手会被粘在铁棒上 C.买食品时,将食品的塑料袋粘在手上甩不掉 D .印刷厂里的纸张粘在一起不容易分开 2、 四个小球甲、乙、丙、丁,已知甲带负电,乙排斥甲,丙吸引乙,丁吸引丙,则丁球( ■定带正电 D.带电或不带电均有可能 ) .丝绸带负电,玻璃棒带等量正电 丝绸和玻璃棒都带负电 ) 毛皮上的一些正电荷转移到橡胶棒上 橡胶棒上的一些电子转移到毛皮上 ) A. 一定不带电 B. 一定带负电 C. 3、 丝绸和玻璃棒摩擦后分开,那么结果则是( A .丝绸和玻璃棒都带正电 B C .丝绸不带电,玻璃棒带正电 D. 4、 毛皮与橡胶棒摩擦后,毛皮带正电,这是因为 A.毛皮上的一些电子转移到橡胶棒上 B. C.橡胶棒上的一些正电荷转移到毛皮上 D. 5、 在晴朗的冬日,用塑料梳子梳干燥的头发,头发会越梳越蓬松,其主要原因是( A ?梳头时,空气进人头发 B ?头发和梳子摩擦后,头发带同种电荷相互排斥 C ?梳子对头发有力的作用 D. 梳头时,头发的毛囊会收缩 6、 人类对原子结构的探究最早是从静电现象开始的. 对静电现象的认识, 下列说法中正确的是 ( ) A .从静电现象认识到原子核是可分的 B .同种电荷相互吸引,异种电荷相互排斥 C .自然界只存在正、负两种电荷 D .摩擦起电创造了电荷 7、 爱好物理的康康同学发现电视机的荧光屏表面经常有很多灰尘,其主要原因是( A ?荧光屏有吸附灰尘的能力 B .屋子里灰尘的自然堆积 C .电视机工作时,荧光屏表面温度较高 D .电视机工作时,荧光屏表面有静电 摩擦起电的实质是( ) 摩擦时原子核从一个物体转移到 了另一个物体上 摩擦时核外电子从一个物体转移到了另一个物体上 摩擦时原子从一个物体转移到了另一个物体上 摩擦可以创造电荷 如图所示,甲、乙两个通草球用丝线悬挂着,当乙球靠近甲球时,两球互相排斥,则下列说法正确 的是( A. 8 A. B. C. D. 9、 B. C . D. ) 甲球带正电, 甲球不带电, 甲球带正电, 乙球不带电 乙球带负电 乙球带负电 甲、乙两球都带负电或都带正电 10、 有4个轻质小球A 、 则下列判断正确的是( A. A 带负电, C. A 带负电, D. A 带正电, D 带负电, D 带负电, D 带正 电, B C D,已知 ) B 一定带正电 B 可能带正 电, B 一定不带电 0 甲 C 带正电,A 与C 相互吸引,A 与 D 相互排斥,B 与D 相互吸引, B . A 带负电,D 带正电,B 一定带负电 可能不带电 +4+ 11、 如图所示,开关 A.控制整个电路 C.只控制灯L 2 S 的作用是( B. 只控制灯 D.控制L 1和L 2 ) L i C,

【数学】2020年度苏教版二年级下册数学试卷-第1周周末作业

数学第1周周末作业 班级:姓名: 一、圈一圈,填一填 ☆☆☆☆☆☆☆☆☆☆☆☆☆ 13个☆,每3个一份,分成了()份,还剩()个。 13÷()=()……()。 二、填空。 1.计算有余数的除法,余数要比除法()。 2.19根小棒最多可以摆()个小正方形,还剩()根。 3.有31个乒乓球,要装在5个盒子里,每个盒子的个数一样多,每个盒子装()个,还剩()个。 4. 26÷□=6……2中,除数是()。一个数除以7,余数最大是()。 5. 在□÷□=6……7中,除数最小是(),这时被除数是()。 6.△÷5=8……★,被除数最大是()。 7. □÷□=6......3 □÷□=6 (3) □÷3=6……□□÷3=6……□ □÷□=□......4 □÷□=□ (4) 8.()最大能填几?()×8<36 65>8×() 9. □÷□=□(盘)……□(个) □÷□=□(个)……□(个) 10.有50个苹果,至少拿出()个才能正好平均分给7个小朋友; 要再拿()个才能正好分给8个小朋友。 11.○△△□○△△□○△△□……按这个规律画下去,第20个画(),这33个图形是()。 三、选择题。(把正确答案的序号填在括号内。) 1.商是7的算式是( )。 ①7÷7 ②1×7 ③21÷3 ④42÷7 2.计算时用“七七四十九”这句口诀的算式有( )。 ①7+7 ②7-7 ③49÷7 ④49-7 3.余数是4的算式有( )。

①36÷8 ②10÷4 ③18-14 ④32÷7 4.16棵树,平均每行种3棵,可种几行,多几棵?( ) ①16-3 ②16÷3 ③16÷5 ④16+3 四、用竖式计算 26÷3= 41÷6= 30÷5= 75÷9= 五、解决问题。 1、舞蹈队有24个同学跳孔雀舞。 (1)如果排成5行,平均每行几个同学,还多几个? (3)你能设计出一个排队方案,正好排完,没有多余的同学吗? 2、每本练习本9角,小明用6元钱去买,最多可以买多少本? 3、王老师带32名学生划船,每条船最多坐4人,他们需要租几条船? 4、有一堆球,不管平均分给4个班还是5个班,都剩下3个球,这堆球最少有多少个? 5、花圃里每排摆8盆花,一共摆了7排。 (1)一共有多少盆花?(2)如果每排摆9盆花,可以摆成几排,还剩几盆? 6、一辆小汽车上有4个轮子和一个备用胎,现在有28个轮子,最多能装几辆这样的汽车? 7.公园大门上,按“红、黄、蓝、绿、白、紫”的顺序从左往右挂了一排彩灯,一共有50盏,第25盏是什么颜色?最右边一盏是什么颜色?

(最新)初二语文周末作业及答案

初二语文周末作业 班级姓名家长签字: 一、根据拼音写出相应的汉字。 第一单元:⑴wēi yí⑵磅bó⑶mí n 山⑷qión 境 ⑸草tǎn ⑹泥zhān ⑺惊huóng ⑻pā n 谈⑼呜yè⑽咀jué⑾quó n 曲⑿澎pài ⒀打zhàn ⒁chù立⒂景zhì⒃打liang (17)焦zhuó (18)yù n 怒(19)惶huò (20)酸sè (21)嘱fù (22)抽yē (23)宽wè i (24)cù然 (25)è然 (26)mò地 (27)bān 机(28)哽yè (29)gōu 火(30)xuòn 丽 (31)急zhòu (32)má o 牛 (33)niān 巴 (34)火liáo (35)shà时36)zhèn g 住 (37)平zè(38)báo 雾 (39)liàng qiàn g 第二单元: (1)qī qiāo (2)yīn 切 (3)玛nǎ o (4)山ào (5)圣dàn (6)xié着 (7)chà异 (8) à o 悔(9)字tiè (10)qí祷 (11)chéng 罚 (12)gěng 住 (13)ju àn 恋 (14)áo 游 (15)zhuō越 (16) méng 发 (17)恐h è (18)wū蔑 (19)mù集 (20)qián 坤(21)洋yì (22)jiǎo 健 (23)diāo 谢 (24)júe 强 (25)贫j ǐ(26)推jiàn 二、补充完整下列成语。 虎离山用兵如千锤 百捐杂税 然人梦踉踉花 天地万俱 谈笑风汹涌 湃口同声指一算 风残年故弄虚得门生 理力争无以对安乐业

花水月飞烟灭无以比 有一日如获宝不而同 三、填写诗句。 《泊秦淮》杜牧 1、写景中蕴含凄清暗淡,为本诗定上伤感悲愁基调的句子: 2、使诗人产生亡国,历史又重演的忧患,借古喻今的句子: 3、杜牧的《泊秦淮》:表现诗人的忧患意识的诗句是: 《春望》杜甫 1、借花鸟表达忧国忧民之情的诗 句: 2、作者思念家乡的诗 句: 3、言明春望所见的诗句是: 《过零丁洋》文天祥 1、表现诗人的英雄气概与舍生取义的生命观的诗 句: 2、概括写出诗人被捕前的全部经历的诗句 是: 3、写出国家和个人的境遇的诗句 是: 4、概括写出两次抗元,遭受失败后的心情的诗句 是: 5、表现诗人誓死报国,表现诗人崇高的爱国情怀与坚贞的民族气节的名句 是: 毛泽东诗词: 1、,而今迈步重头越。从头越,,残阳如血。 2、,。不到长城非好汉,屈指行程二万。 3、,岁岁重阳。今又重阳,。 一年一度秋风劲,不似春光。胜似春光,。4、,冻死苍蝇未足奇。5、,引无数英雄竞折腰。 6、,不可沽名学霸王。 7、踏遍青山人未老,。 8、金猴奋起千钧棒,。9、牢骚太盛防肠断,。 10、,她在丛中笑。 爱国情怀: 1、,事定犹须待阖棺。 2、臣心一片磁针石,。 3、粉身碎骨浑不怕,。 4、我自横刀向天笑,。 5、王师北定中原日,。 6、但使龙城飞将在,。思乡之情: 1、狐死归首丘,。 2、,月是故乡明。 3、今夜月明人尽望,。 4、?烟波江上使人愁。 5、此夜曲中闻折柳,?

周末作业

Unit 6 一、.适当形式填空 1.—Do you like ______(hamburger)? Yes, I do. 2.—Let’s have ______(tomato)? —Oh, no. I don’t like _____(they). 3.I like salad, and my brother likes ______(bread). 4.______(strawberry) are my favorite(最喜欢的)fruit. 5.My mother doesn't like _____(orange). My father doesn't like _____(pear). 6.My aunt often has ______(salad) with carrots, tomatoes and chicken. 7.Some pears _______(be) on the desk and much milk ________(be) in the cup. 二、.句型转换 1.Bob and Bill like French fries. (改为否定句) Bob and Bill _____ _____ French Fries. 2.My cousin likes ice cream. (改为一般疑问句) ______ ______ cousin ______ ice cream? 3.Linda likes oranges. (划线提问) _____ ______ ______ Linda _________? 4.My grandparents have some nice pictures.(改否定句) My grandparents _____ _____ ______ pictures. 5.My uncle has hamburgers for lunch.(改一般疑问句)_____ _____ uncle _____ hamburgers for lunch? 6.He has chicken and carrots for supper.(划线部分提问)______ ______ he have for supper? 7.My mother likes rice and eggs for lunch.(改否定句) My mother _______ _______ rice______ eggs for lunch. 8.Dave doesn't like carrots.(改为肯定句)Dave _____ carrots. 9.They don't like ice cream. (划线提问) ______ ______ they _______? 10.They don't like vegetables. (用she 改写句子) She _____ _____ vegetables. 五.根据汉语意思完成英语句子。 1.—你喜欢香蕉么?不,我不喜欢。—_______ you like ________?—No, I _____. 2.比尔喜欢汉堡么?—是的,他喜欢。—_____ Bill _______ _________? —Yes, he does. 4.我喜欢沙拉,但莎莉不喜欢。I _____ salad, but Sally _______. 5.—让我们吃梨吧。—不了,我不喜欢它们—Let’s ______ ______. —Oh, no. I don't like _______. 6.我妹妹早餐常吃汉堡包和沙拉。My sister often _____ _______ and _____ _____ breakfast. 7.吃健康的食物是一个好习惯。Eating _______ ________ is a good habit. 8.我们应该多吃水果和蔬菜。We should eat a lot of ______ and _______. 9.这是一些草莓冰淇淋,你喜欢么?This is ______ ________ __________. Do you ______ _____? 10.辛迪是一名运动明星,她吃得好。Cindy is a ________ ________and she ______ _______ 11.我的表妹不想变胖。My cousin ________ ________ _________ ________ ________. 12.让我们考虑一下晚餐的食物。Let's ________ ________ food ________ _________. Unit 5 一.A.用所给词的适当形式填空 1._____your brother _________any baseballs at home? Yes, he ______one. (have) 2.This English story sounds__________(interest) 3._______(spll) it , please. 4.Let’s ________(get) it and ______(play) it together. 5.We like _________(watch) TV. 6. Tim________(play) sport every day. 7. I love children and I always play games with__________(it) B. 用be, have/ has, do/ does填空 1. My mother _______a teacher. She _____many books. 2.______he _______a soccer ball? 3.I _______a Chinese-English dictionary. _____he _______one? 4. He _______sports every day, but I don’t. _______sports. I watch them. 5.My trousers __________on the chair. Where ________ yours, sisters? 二.按要求完成句子。 1. The music sounds nice. (改为否定句)The music_________ __________nice. 2.Mary and Sandra like that red jacket. (否定句)Mary and Sandra ______ _______that red jacket. 3.Mrs. Hand has a soccer ball.(改为一般疑问句,并做肯定回答) ________Mr. Hand_______a soccer ball? Yes, _______ ___________. 4.Do they have any interesting books?(改为单数句)______ ______have________ interesting book?

初一英语第十一周周末作业

初一英语第十一周周末作业 Class ____________ Name _____________ Marks _____________ 家长签字____________ 一.词汇38分 A)根据首字母,中英文提示及句意完成句子 1. Don’t put much ___________(糖) in it. 2. Do you like eating _____________(汉堡包)? 3. I did not have breakfast this morning. I am h______________ now. 4. How many b________ of rice do you have every day? 5. She e______________ in the garden for half an hour every day. 6. It is good for your health to eat some fruit and v_________________. 7 After a day's work, my father gets very t________ . 8. It's ___________ (重要的)for you to read English every day. 9. Food can give us a lot of (power to do things). 10. Be ___________(小心的) when you walk across the street. 11. It is an ____________(not difficult) question. Most of us can answer it correctly. 12. My sister n goes to school by bike because she can’t ride it. 13. If you want to keep (健康), you should do morning exercises every day. 14. The young man (讨厌) working all day. 15. My sister (学习) at the No. 1 Secondary School. 16. Chen Ze (很少) plays computer games at the weekend. 17. Does your cousin like (甜的) food, Sally? 18. Eating too much food is not good for your (健康). 19. You are not fit, and you should c your lifestyle. 20.Mr. Smith will arrive b__________ 8 a.m. and 9a.m. 21 We have three m________ a day, breakfast, lunch and supper. 22 Children like drinking __________(果汁) in summer. B) 用所给词的适当形式填空 23. If you want __________ (be) healthy, you need to exercise every morning. 24. What about _____________ (have) a walk after supper? 25. —What’s the time, Kitty? —It’s seven thirty. Oh, it’s time for us ________ (go) to school now. 26. Let your sister ____________ (clean) the bedroom for you. https://www.wendangku.net/doc/6b6877637.html,lie plan ____________(visit) the Great Wall with her parents next week. 28 It’s cold outside. You n eed ______________(wear) warm clothes. 29. It’s important for us ____________(drink) water every day. C) 从方框中选择恰当的短语并用其正确形式完成句子。 30. I go to the school library. 31. Every day, Millie reads English . 32. There is rice in the bag. 33. Helen dances for about two hours every day. I think she must after that. 34. Kate does exercise every day. She than (比) I.

苏教版四年级下册数学第一周周末作业

四年级数学下册第一周末作业 班级姓名成绩 一、计算 1.直接写出得数。 4×24=91÷3=50×20=15×5= 30×90=25×40=3×15=45×20=80×50=60×10=300÷50=24×5= 2.用竖式计算。 35×28= 480×24= 507×4= 3.脱式计算。 (520+138)÷(267-220)18+12×25-23 714÷(30+180÷15)840÷[(144+36)÷36] 二、填空。 1.()个十万是一百万,10个一百万是()。 2.个级的数位有()。万级的数位有()。 3.在数位顺序表中,从右边起,第五位是()。十万位右边一位是()。 4.6085007的6在()位上,表示6个(),8在()位上,表示 ()个(),7在()位上,表示()个()。 5.最小的五位数是(),最大的五位数是()。 6. 5060读作(),5600000读作()。 三千零二万写作()三百万写作()。

7.我们戴的红领巾是一个()形,它又是一个()图形。7.将正确答案的序号填在括号里 (1)图形1绕点0顺时针旋转90°到图形()所在的位置。 (2)图形4绕点O()时针旋转90°到图形3所在的位置。 (3)图形3绕点O逆时针旋转()到图形1所在的位置。 8、看图填一填 1、 (1)小帆船先向()平移了()格,再向()平移了()格。(2)小树先向()平移了()格,再向()平移了()格。 9.指针从B点开始,顺时针旋转90°到()点, 指针从C点开始,逆时针旋转90°到()点。 10.称盘上的指针显示的是()千克,减少()千克,可以使指针逆时针旋转90°。 三、选择题 1.下面图形不是轴对称图形的是() ①长方形②等腰梯形③平行四边形④等边三角形 2.长方形有()条对称轴,圆有()条对称轴,正方形有()条对称轴。 ① 1 ② 2 ③ 3 ④ 4 ⑤无数 3.从6:00到9:00,时针旋转了() ① 30°② 60°③ 90°④ 180° 4.圆有()条对称轴。 A、1 B、4 C、无数 5.下面的图形中对称轴最多的是()。 A、正方形 B、长方形 C、等边三角形 6.把长方形绕0点顺时针旋转90°后,得到的图形是()。 A、 B、 C、 7.右图中,图形B可以看成是图形A绕O点()旋转90度得到的。 ①顺时针②逆时针

八年级数学第十三周周末作业

八年级数学第十三周周末作业 一、选择题 1、某校五个绿化小组一天植树的棵树如下:10?10?12?x?8.已知这组数据的众数是10,那么这组数据的平均数是() A、12 B、10 C、8 D、9 2、某班20名学生身高测量的结果如下表: 该班学生身高的中位数分别是() A、1.56 B? 1.55 C? 1.54 D? 1.57 3、某同学使用计算器求30个数据的平均数时,错将其中一个数据105输 入为15,那么所求出平均数与实际平均数的差是() A、3.5 B、3 C、0.5 D、-3 4、一鞋店试销一种新款女鞋,试销期间卖出情况如下表: 对于这个鞋店的经理来说最关心哪种型号的鞋畅销,则下列统计量对鞋店经理来说最有意义的是() A、平均数 B、众数 C、中位数 D、方差 二、填空题 1、数据 -2,-1,0,1,1,2的中位数是,众数是; 2、八年级(2)班为了正确引导学生树立正确的消费观,随机调查了10名同学某日的零花钱情况,其统计图表如下:

零花钱在4元以上(含4元)的学生所占比例数为。该班学生每日零花钱的平均数大约是元。 3、已知数据a,c,b,c,d,b,c,a且a<b <c<d,则这组数据的众数为________,中位数为________, 4、在数据-1,0,4,5,8中插入一个数x,使这组数据的中位数为3,则x = 5、一组数据5,-2,3,x, 3, -2,每个数据都是这组数据的众数,则这组数据的平均数是_______, 6、如果1,2,3, x的平均数是5,而1,2,3,x, y的平均数是6,那么y=_______. 7、某中学学生球队12名队员中14岁1人,15岁4人,16岁3人,17岁2人,18岁2人,则该球队队员年龄的平均数是_______,众数是_______,中位数是_______。 8、如果数据2,x, 4, 8 的平均数是4,则这组数据的中位数是_______,众数是__________。 9、一组数据3,4,0,1,2的平均数与中位数的和是_______。 10、a, x是非负整数,,且a, 1, 1, 2, x的众数是1,中位数是a,平均数为1.8,则a= _______,x=_______. 11、有6个数的平均数9,另4个数的平均数是6,则这10个数的平均数是___________ 12、如果3,4,5,6,a, b, c的平均数是5,那么a, b, c的平均数是_________ 13、某人驾车前120km的速度是每小时60km,后180km的速度是每小时90km,

周末作业11-15

周末作业 1. 物质的水溶液能导电,但该物质属于非电解质的是( ) A.三氧化硫B.干冰C.蔗糖D.硫酸钡 2. 下列电离方程式中,书写错误的是( ) A.NaHCO3=Na++H++CO32-B.NaHSO4=Na++H++SO42- C.H2SO4=2H++SO42-D.KClO3=K++Cl-+3O2- 3. 离子方程式CO32-+ 2H+ = H2O + CO2↑中的CO32-代表的物质可以是( ) A.CaCO3 B.NaHCO3 C.Na2CO3 D.BaCO3 4. 要使溶液中存在大量的K+、Na+、H+、NO3-和SO42-五种离子,则在蒸馏水中至少溶解几种物质?( ) A. 2种 B. 3种 C. 4种 D. 5种 5. 在某溶液中仅存在Na+、Fe3+、SO42-三种离子,已知Na+和SO42-个数比为3∶2,则Na+、Fe3+和SO42-三种离子的个数比为( ) A. 9:1:6 B. 3:1:2 C. 1:1:1 D. 6:1:9 6. 下列反应的离子方程式错误的是() A.向碳酸氢钙溶液中加入过量氢氧化钠:Ca2++2HCO3-+2OH-= CaCO3↓+2H2O+CO32- B.等体积等物质的量浓度的氢氧化钡溶液与碳酸氢铵溶液混合: Ba2++2OH-+NH4++HCO3-= BaCO3↓+NH3·H2O+H2O C.氢氧化铝与足量盐酸反应:Al(OH)3+3H+= Al3++3H2O D.过量CO2通入氢氧化钠溶液中:CO2+2OH-= CO32-+H2O 7.下列离子方程式中,正确的是() A. Ca(OH)2浊液与稀盐酸反应:Ca(OH)2 + 2H+ = Ca2+ + 2H2O B.氧化钠与水反应:Na2O + 2H2O = Na+ + 2OH- C.碳酸钡溶于醋酸:BaCO3 + 2H+ = Ba2+ + H2O + CO2↑ D.醋酸和氨水反应:CH3COOH + NH3·H2O = CH3COONH4 + H2O 8. 溶液与铁反应能放出氢气,则一定能大量共存的离子组是( ) A. NH4+、NO3-、CO32-、Na+ B. Na+、Ba2+、Cl-、SO42- C. NO3-、K+、Na+、OH- D. Ca2+、K+、Cl-、NO3- 9. 在给定的四种溶液中,加入以下各种离子,各离子能在原溶液中大量共存的有( ) A.滴加酚酞试液显红色的溶液:Fe2+、NH4+、Cl-、NO3- B.碱性溶液中有:S2-、SO32-、Cu2+、Na+ C.所含溶质为Na2SO4的溶液:K+、Ca2+、NO3-、Al3+ D.滴加石蕊试液显红色的溶液:Fe3+、Cu2+、SO42-、Cl-

周末作业

初 二 数 学 周 末 作 业 辅导组:_____ _ 姓名:_________ 座号: 分数:________ 先复习内容:第2章《一元一次不等式与一元一次不等式组》的知识要点; 1. 若方程组31 33 x y k x y +=+?? +=?的解x ,y 满足0<x+y <1,则k 的取值范围是( ) A. 0≤ 4. 若不等式组841 x x x m +<-??>? 的解集为3x >,则 的取值范围是( ) A.m ≥3 B. m=3 C.m ≤3 D.m <3 5. 关于的不等式组()32 42331x x a x x +?>+? ??<-+? 有四个整数解,则的取值范围是( ) A. B. C. D. 6. 若方程组3 23 x y x y a -=?? +=-?的解是负数,则a 的取值范围是( ) A. -3<a <6 B.a <6 C.a <-3 D.无解 7. 某商品原价800元,出售时,标价为1200元,要保持利润率不低于5%,则至多可打( ) A. 6折 B. 7折 C. 8折 D. 9折 8. 小明家离学校1600米,一天早晨由于有事耽误,结果吃完饭时只差15分钟就上课了.忙中出错,出门时又忘了带书包,结果回到家又取书包共用去3分钟,只好乘公共汽车.公共汽车的速度是36千米/时,汽车行驶了1分30秒时又发生堵车,他等了半分钟后,车还没走,于是下车又开始步行.问:小明步行速度至少是( )时,才不至于迟到 A. 60米/分 B. 70米/分 C. 80米/分 D. 90米/分 9. 不等式4(x 2)>2(3x + 5)的非负整数解的个数为( ) 120份

五下周末作业(11)

五下周末作业(11) 班级___________姓名___________得分________ 一、给下列词语中加点的字选择正确读音,用“√”标出。(4分) 入侵(qīn qīnɡ)瞬间(shùn sùn)灼痛(zhóu zhuó)骨髓(suíshuǐ)两肋(lèi liè)猝死(cùzù)憧憬(chóng chōng)赐予(cìsì)二、选择正确的字,写在横线上。(3分) 平安无(是事)如(临林)大敌长途跋(社涉) 绘(声生)绘色不能自(拔拨)网络资(原源) 三、补充词语。(8分) ()()如焚按兵()()()()流长铤而()()()()一笑故伎()()()()传书一落()()四、把下列词语分成四类。(6分) 掸霎时间跳嚼捆一瞬间喝吞咬跑顷刻撕 眨眼间踢啃踏掘吸拂跃刹那间蹦拭转眼间 _________________________________ _________________________________ _________________________________ _________________________________ 五、选词填空。(3分) 严肃严厉严格 1.每个同学都应该()遵守学校的各项规章制度。 2.爷爷是个很()的人,从来不与人开玩笑。 3.我即使犯了一点小错误,也会受到爸爸的()批评。 六、修改病句。(3分) 1.早晨起来,我呼吸着灿烂的阳光和新鲜的空气。 2.时间是宝贵的,所以我们要爱护时间。 3.他每天都要批阅很多大量的文件。 七、补全下半句。(4分) 秀才不出门,______________ 。海内存知己,______________ 。 良药苦口利于病,____________________。鞠躬尽瘁,______________ 。 八、按要求写句子。(5分) 1、各路诸侯看到了烽火。各路诸侯火速率兵出击。(用关联词语合并成一一句话) 2、多媒体电脑,真是个神奇的魔术师!(改为反问句) 3、紧急救援人员救出了苏珊。(改为“被”被字句) 4、北京的一位小学生通过多媒体电脑制作了一份“绘声绘色”的电子邮件。(缩句) 5、桑恩回答:“我们已经打了求助电话。” 改为间接引语:__________________________________________________________ 九、在括号里填上合适的词语。(7分) 遥望环视仰视窥视俯视凝视瞻仰眺望 聚精会神地看——()抬起头来看——() 从高往下看——()向四周看——() 偷偷地看——()怀着崇敬的心情看——() 向远处看——()从高处向远处看——()1.井口很大,井水很清,人要是朝井里(),能照得见脸孔。 2.抬头(),见许多人仍在努力向上攀登,这山顶却像钻在云里一般,看不见。 3.人们()着在风中飘扬的五星红旗,心中有说不出的自豪。 4.妈妈进门()四周,笑着说:“哟,今天谁把屋子拾掇得这么干净?” 5.他一动也不动,()着手里的那本书,久久才说:“这里有个故事啊……” 6.登上宝塔的最高层(),只见一片林海绿波荡漾。

2017,七年级英语,第一周,周末作业

七年级英语第一周周末作业 尊敬的家长朋友: 您好!感谢您的信任把孩子交到我们老师的手中,为了更好的监督孩子完成周末作业和一周所学内容,从本周起,我们将每周作业以表格方式呈现出来,并附有朗读内容,请您每周抽出一定时间陪孩子完成作业的同时,并将每项作业给出评价,如果您觉得孩子在英语学习中有任何问题,都可以写在下表中向我们反馈,我们一定会同您一起给孩子最好的陪伴和帮助!感谢! 家长评价表(以下评价表中画√) 班级:___________ 姓名:___________ 家长签名:_______________ 一朗读内容: The tall Paul gave me a call. He wanted to buy a ball at the mall. When we walked past the city hall, there came a big squall. We saw a stall fall down, and we were both appalled. Then Paul was galled by a falling wall. Then I felt a pall of darkness covering all. From then on, I became a thrall to horror beyond recall. I wish no mishap had ever befallen us at all. 二歌曲:Try Everything 三音标练习: 一.填空. 1.英语共有______个音标. 2.音标分为______音和______音两大类. 3.元音有___个,分为___元音和___元音. 4.辅音有________个,按声带振动情况分为____辅音和____辅音. 二. 找出在A,B,C,D四个单词中相同字母/组合读音不同的单词: ( ) 1. A. tea B. meat C. weather D. beach ( ) 2. A. back B. fast C. have D. map ( ) 3. A. warm B. garden C. market D. party

部编版八年级(上)语文 周末作业及答案

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周末作业(六)

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