七年级下第一周周末作业

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七年级英语下学期第1周双休日作业试题

七年级英语下学期第1周双休日作业试题

七年级英语第1周双休日作业制卷人:歐陽文化、歐陽理複;制卷時間:二O二二年二月七日班级:___________ 姓名:__________ 家长签名:___________ 得分:____________ 一、单项选择〔2*15=30’〕( )1..Mount Fuji is a famous mountain in ________.A. JapanB. the USAC. the UKD. China( )2.We usually make dinner in the _______.A. bedroomB. dining roomC. kitchenD. balcony( )3.—Excuse me . May I speak to Jill, please? —___________A. Yes, I amB. Do you know him?C. I am speakingD. This is Jill speaking( )4.Which of them isn’t a capital city?A. ParisB. LondonC. New YorkD. Moscow( )5..Wednesday is the __________ day of a week.A. fifthB. fourthC. forthD. third( )6.Would you like _________a cup of tea?A. drinkB. to drinkC. drinkingD. to drinking( )7. I like_ _________ the sea. It’s beautiful.A. look atB. looking outC. looking out atD. look out( )8.Our house is different _________yours in some ways.A .on B. from C. for D. in ( )9.Our teacher asks us___________English every day.A . read B. reads C . to read D. reading( )l0 It_____me five minutes to walk to school.A.spends B.takes C.costs D.has ( )11.If you are free this afternoon, Let’s _________.A. shoppingB. do any shopping C .do some shopping D. do shop ( )12---.May I speak to Jack?--- Sorry, he isn’t here now. I’ll tell him to _____ you______ later.A. Call ; onB. calling ; atC. call ; backD. calling; back( )13. If it rains this afternoon , please______ your umbrella ______ _ me.A. share ; withB. use ; withC. share ; toD. use ; to( )14 Mary has______bedroom in the new flat.A. she’sB. her’sC. her ownD. her own’s( )15. A livin g room isn’t a good place______ meals.A. cookB. cooksC. to cookD. cooking二、阅读理解〔2*10=20’〕Many people envy(羡慕) me because I am a white-collar(白领)worker. In fact, I don’t like the life in the__1___. My dream_ _2____ is in the country. It’s not very large or modern, but it’s quiet and comfortable. I live with my parents.It has two floors and six rooms. On the ground_ 3 ___, there is a kitchen. I can_ __4____ dinner there with my mother. The sitting room is _____5______ the kitchen. There are some sofas, a coffee table and a TV set. I can chat or watch_____6______with my parents or friends on the sofa. The_ 7 ___ and bedroom are on the first floor. There are computers and lots of books in the study. I often read books and play computer games there. My____8_____ bedroom is on the right. Every morning, the sun shines through the windows. Mine is__ 9___ the opposite(对面). The bathroom is at the corner(角落)。

七年级期第一周周末语文作业

七年级期第一周周末语文作业

七年级语文第一周周末作业班级:姓名:家长签名:一、古诗默写1.请默写《闻王昌龄左迁龙标遥有此寄》,。

,。

2.请默写《次北固山下》,。

,。

,。

,。

二、看拼音,写词语1.一切都像刚睡醒的样子,xīn xīn rán()张开了眼。

2.各种花的香,都在微微润湿的空气里yùn niàng()。

3.春天像小姑娘,huā zhī zhāo zhǎn()的,笑着,走着。

4.他们的草屋,稀稀疏疏的,在雨里jìng mò()着。

5.他们看着那些小山,心中便觉得有了zhuó luò(),有了依靠。

6.树尖上顶着yī jì()儿白花,好像日本看护妇。

7.水藻真绿,把终年zhù xù()的绿色全拿出来了。

8.夏天的雨也有夏天的性格,热烈而又cū guǎng()。

9.但在南国,雨仍然偶尔造访大地,但它变得更lìn sè()了。

10.那种清冷是柔和的,没有北风那样 duōduōbīrén ()。

三、仿写句子例句:春天的雨,细腻而轻柔,给山野披上美丽的衣裳。

夏天的雨,,。

秋天的雨,,。

冬天的雨,,。

四、阅读那个春天,很暖章月珍女儿一岁时,婆婆得了精神疾病,生活基本上能够自理,自己每天做菜做饭洗衣服,只是一到傍晚,就会出现幻觉,常常会无缘无故地把家里的东西扔掉。

记得有一次女儿感冒,她竟把感冒药全部扔到了池塘里,还振振有词地说那些是毒药。

说着说着,婆婆害怕地哭了。

女儿一边咳嗽一边也哭个不停。

我看着两个泪人,也忍不住哭了。

那个冬天,很冷……女儿五岁那年,有一天她()对我说:“妈妈,我可不可以换掉我奶奶呀?我要让惜愉的奶奶做我的奶奶!”我说为什么呀?她说:“我的奶奶一点都不好!从来没有疼爱过我!但是惜愉的奶奶对惜愉可好了!每天来幼儿园接惜愉回家,回到家还给他做好多好吃的,冬天她灌好热水袋给惜愉焐手,夏天她拿着扇子不停地给惜愉赶蚊子。

(苏教版)七年级数学下册:周末作业练习(1)及答案

(苏教版)七年级数学下册:周末作业练习(1)及答案

七下数学周末练习1一、选择题:1.在下列四个汽车标志图案中,能用平移变换来分析其形成过程的图案是【 】2.∠1与∠2是两条直线被第三条直线所截的同位角,若∠1=50°,则∠2为【 】A 、50°B 、130°C 、50°或130°D 、不能确定3.下列五幅图案中,⑵、⑶、⑷、⑸中的哪个图案可以由(1)图案平移得到?【 】 A .⑵ B .⑶ C .⑷ D .⑸4.下列图形中,由AB CD ∥,能得到12∠=∠的是【 】5.以下列各组线段长为边,能组成三角形的是【 】A .1cm ,2cm ,4cmB .7cm ,6cm ,5cm ;C .12cm ,6cm ,6cmD .2cm ,3cm ,6cm 6.如图11,OP∥QR∥ST,则下列各式中正确的是【 】 A .∠1+∠2+∠3=180° B .∠1+∠2-∠3=90° C .∠1-∠2+∠3=90° D .∠2+∠3-∠1=180°7.如图是一块电脑主板的示意图,每一转角处都是直角,数据如图所示,则该主板的周长是 【 】 A .88mm B .96mm C .80mm D .84mm8.在同一平面内,有12条互不重合的直线 ,若 ,2l ∥3l ,43l l ⊥,4l ∥5l ……以此类推,则1l 和12l 的位置关系是【 】A 、平行B 、垂直C 、平行或垂直D 、无法确定9.如图,一个人从A 点出发向北偏东30°方向走到B 点,再从B 点出发向南偏东15°方向走到C 点,那么∠ABC 等于【 】 A 、45° B 、75° C 、90° D 、105°10.如图,Rt△ABC 中,∠ACB=90°,∠A=55°,将其折叠,使点A 落在边CB 上A′处,折痕为CD ,则∠A′DB=【 】 A . 40° B .30° C .20° D .10°二、填空题:1.等腰三角形两边长分别为3、7,则其周长为 ;2.如图,直线b a ,被直线l 所截,∠3=50°,当∠1=_______°时,a ∥b ;3.一个三角形的两边长是3cm 和4cm ,周长是整数,则这样的三角形有_______个.4.如图,AD ∥BC ,BD 平分∠ABC ,且∠A =100°,则∠D =______度;5.如图大矩形的长10cm ,宽8cm ,阴影部分的宽2cm ,则空白部分的面积是 _cm2。

(word完整版)苏科版七年级下数学第1周周末作业

(word完整版)苏科版七年级下数学第1周周末作业

命题人任云审题人马聪班级姓名家长签字一.选择题1.下列图形中,∠1与∠2是同位角的是()2.如图,下列说法正确的是()A、∠2和∠4是同位角B、∠2和∠4是内错角C、∠1和∠A是内错角D、∠3和∠4是同旁内角3.如图所示,直线a、b被直线c所截,现给出下列四种条件:①∠2=∠6②∠2=∠8③∠1+∠4=180°④∠3=∠8,其中能判断是a∥b的条件的序号是()A.①② B.①③ C.①④ D.③④4.如图,已知a//b,且∠2是∠1的2倍,那么∠2的度数为()A.60° B.90° C.120° D.150°5.一辆汽车在笔直的公路上行驶,两次拐弯后,仍在原来的方向上平行行驶前进,那么这两次拐弯的角度应该是()A. 第一次向右拐40°,第二次向左拐140°B. 第一次向左拐40°,第二次向左拐40°C. 第一次向左拐40°,第二次向左拐140°D. 第一次向右拐40°,第二次向右拐40°二.填空题6.如图:(1)∠1与∠2是直线、被直线所截成的角;(2)∠2与∠C是直线、被直线所截成的角;(3)∠3与∠C是直线、被直线所截成的角.7.如图:(1)若∠A=∠3,则∥,理由是;(2)若∠2=∠E,则∥,理由是;(3)若∠A+∠ABE= 180°,则∥,理由是;8.如图,如果AB//CD,根据_____________________ ____可得∠1=∠CDE,根据________ ________________,可得∠1=∠BDF;根据________ ____________,可得∠1+_____=180°. 9.如图,直线a//b,∠1=45°,则∠2=_____°,∠3=_____°.10.如图,∠1=∠2,∠3=100°,则∠4=_______°.11.如图,EG//AB,FG//DC,∠B=100°,∠C=120°,则∠EGF=________°.12.如图,AB//CD,请你添加一个条件,使∠ABE=∠DCF.13.下列现象:①电梯的升降运动,②飞机在地面上沿直线滑行,③风车的转动,④冷水加热过程中气泡的上升。

(2021年整理)苏科版七年级下数学第1周周末作业

(2021年整理)苏科版七年级下数学第1周周末作业

苏科版七年级下数学第1周周末作业
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七年级语文下册周末作业(一)课件新人教版

七年级语文下册周末作业(一)课件新人教版

周末作业
1.选出下列加点词语解释相同的一项( C ) A.自青州入魏/自以为大有所益 B.洪仲深让之而不为报/久之,目似瞑 C.年二十余/元方时年七岁 D.有友人与之书而不能答/与儿女讲论文义 2.用 “/”给文中画线的句子断句。 有 气 干 拳 勇 过 人 能 手 执 马 鞍 倒 立 驰 骋 3.选文末尾引用了皇帝的话,请分析其作用。 __________________________________________ 侧面表现傅勇发愤读书的效果,突出读书能使 __________________________________________ 人增长才干的主题。 ______
周末作业
【参考译文】傅永,字修期,是清河人。小的 时候跟随叔父傅洪仲从青州进入魏国,不久又 投奔南方。他很有气魄和才干,勇气过人,能 够用手抓住马鞍,倒立在马上飞快地奔跑。他 二十多岁的时候,有个朋友给他写信,但是他 却不会回信,就请教洪仲,洪仲狠狠地责备他, 不给他答复(帮他回信)。于是傅永就发奋读书, 广泛阅读经书和史书,兼有文韬武略。皇上常 赞叹说:战场上能击退贼兵,平时能作文书, 只有傅修期了。
周末作业
(4)他从唐诗下手,目不窥园,足不下楼,兀兀穷 年,lì jìn xīn xuè( 沥尽心血 )。 3.下列句子中加点的词语使用不恰当的一项是 ( D ) A.他有权选聘校长和教师。 B.爱因斯坦以成功的数学理论的形式把这一预见变 成了科学硕果。 C.随着互联网的普及使用,电脑已经不再是什么鲜 为人知的东西了。 D.在这人声鼎沸的地方,连个鬼影也看不到,即使 是白天一个人在这行走,也不免会让人害怕。 人声鼎沸:形容人群的声音吵吵嚷嚷,就像煮开 了锅。
周末作业
每次买菜专挑便宜的,有一次,丈夫不在家,她 和往常一样,很晚才去菜市场。看到有个摊位仅 剩的一小块排骨正便宜出售,想,她犹豫了一下, 还是把排骨买回了家。炖排骨时,锅里冒出的香 味引得6岁的儿子站在厨房门口一步不肯离开。 她感到有些心酸,排骨炖好后,把排骨都夹到儿 子碗里。等她收拾好厨房回来,发觉儿子正在抿 着嘴偷笑,大眼睛一眨一眨的。她问他笑什么, 他舔舔嘴唇说:“妈,排骨真好吃。 ⑨她拍拍孩子的小脑袋,准备吃饭时,发现满满 的一碗饭摆在饭桌上,她吃了一惊,什么也没说,

七年级英语下学期周末作业1试题

七年级英语下学期周末作业1试题

陕飞二中2021-2021学年七年级英语下学期周末作业〔1〕〔无答案〕人教新目的版一、根据提示写单词,使句意完好。

10分1.Please get up early, don’t be so l .2. Everyone had fun at the (时装) show.3. They want to r money for Project Hope.4. ( 棉花) is grown (种植) in our hometown(家乡).5. I don’t think your tie m your shirt very well.6. He looks (神气) in the white shirt .7.We often wear some (鲜艳的) clothes to celebrate the important days.8. Many m machines(机器) are changing(改变) our life today.9.These sports shoes are very (舒适),please try them on.10.One of my (靴子) is broken, so I need a new pair。

二、选择。

20分( )1.—Thank you very much. --- .A. That’s right.B. That’s all right.C. All right.D. That’s all. ( )2.She doesn’t know__________ next.A. what she can do itB. what to do itC. how to doD. how to do it( )3.In our class, everyone _________ reading books.A. likeB. likingC. likesD. is liking( )4.The bag __________ leather.A. is made ofB. is made fromC. makes out ofD. made out of ( )5.--- ________ did you walk around the shopping mall? --- For a long time.A. How longB. How oftenC. How muchD. How many ( )6.How do you that in English ?A. speakB. sayC. talkD. tellthere lots of bread in the fridge ? ---Sorry, we don’t have any.A. IsB. AreC. HasD. Do( )8.I don’t think the jeans fit her .A. very goodB. very muchC. very wellD. very nice( )9.---Can I spend 15 minutes in bed? --- Of course, you can .A. muchB. many C .lots of D. more( )10.---How much does the coat your twin sister ? About ¥200.A. spendB. takeC. payD. cost( )11.I think this pair of trousers me .A. fitB. matchC. fitsD. matches( )12.They wear the clothes from .A.1980B.1980sC. the 1980sD. the 1980s’( )13.This pair of jeans looks nice on you ,can I try ?A. on themB. on itC. them on D .it on( )14.---Can I use your rubber? ---OK, here .A. it isB. is itC. are youD.it’s( )15.If a=2, b=4 ,What’s (a+b)2? A.4 B.16 C( )16. Mother's Day is on . What do you want to buy for your mother?A. the 2nd Sunday in MayB. the 3rd Sunday in MayC. the 2nd Sunday in AprilD. the 3rd Sunday in April ( )17.HY人比拟看中个人的HY性。

七年级下册第一周周末作业

七年级下册第一周周末作业

Weekly T est of Unit 1一、单项选择(15分)( )1.The twins are _______ but they are in _______.A. English, AmericanB.Englishman, AmericaC. English, AmericaD.Englishes; American( )2.---Where ___ your pen pal __ from?--- He’s from Japan.A.does, /B. is, comeC. does, comeD. does, /( )3.---Where does your uncle live?---He lives in_________.A.China,DongguanB.Toronto, FranceC.Sanya,HainanD.London,America( )4.I like November, because my birthday is _____ November 1st .A. inB. onC. atD. of( )5. I want to know more about you, can you __ me something about your school?A. sayB. speakC. talk D tell( )6. _______ is a beautiful city in Canada.A. SydneyB.TorontoC. AustraliaD. Paris( )7. Her favorite ______ is Sleepless Night. It’s a thriller.A. sportB. subjectC. movieD. clothes( )8. The capital of the United States is _____.A. LondonB. New Y orkC. ParisD. Washington D.C( )9. ---How many ______ live here? ---About 40.A. CanadianB. ChineseC. AustralianD. American( )10.Does he want _____ soccer this afternoon?A. playB. to playC. playingD. plays( )11. He isn’t in Paris, he _____ Sydney with his parents now.A. live atB. lives atC. live inD. lives in( )12. I don’t have any brothers ___ sisters, I’m the only child in my family.A. andB. orC. butD. with( )13. He knows_______ Japanese.He can write ____ Japanese.A. a little,inB. a few, atC. many, inD. much, at( )14. Australians speak____________.A. FrenchB. EnglishC. English and FrenchD. Chinese and English.( )15. They play basketball ___ school ___ the afternoon.A. at, inB. at, onC. in, onD. on, in二、完形填空(10分)Lucy is from England. She’s English and she 16___ English. She can also speak 17__ Chinese. She is in Shanghai now. She 18 __ in a middle school. She 19__ classes on weekdays.She often 20___ her mother go shopping 21___ Sundays.Her father is in Shanghai. He 22____ English.Her mother also23___ in Shanghai. They 24___Chinese food. And they like China and the Chinese people 25___ .( )16. A. speaking B. to speak C. speak D. speaks( )17. A. many B. a few C. a little D.little( )18. A. study B. studied C. studies D. is studying( )19. A. has B. have C. is D. are( )20. A. is helping B. helped C.helps D. help( )21. A. at B. before C. on D. in( )22.A. teaches B. teachs C. teach D. is teaching( )23. A. working B. is working C. work D. works( )24. A. liking B. is like C. like D. likes( )25. A. very well B. very much C. very good D. very friendly三、阅读理解(30分)ADear Lisa,Thank you for your email. I am very excited to be your friend. I also hope we can be good friends.Y ou and your cousin John do karate (空手道)—you are so lucky. I hope you get your black belt (黑腰带级在武术,如柔道或空手道中的最高等级)soon. My brother Paul can do Karate. I also love it very much.But I only watch sports, I’m in a wheelchair(轮椅)so I can’t do much. But I’m good at swimming. Y ou know China is holding the Asian games in 2010. Maybe you can come to watch – then we can meet and speak English together.Y our friend,Su Lin( )31. Lisa and Su Lin are __________.A. old friendsB.classmatesC. cousinsD. pen pals( )32. This letter is from _____ to _____.A. Lisa ,Su LinB. Su Lin, LisaC. Paul, JohnD. John, Paul( )33. Which one is right?A. Su Lin is a healthy boy.B. Lisa’s from Korean.C. China will hold the Olympic games in2010.D. Su Lin loves Karate.( )34. Who can’t do Karate?A. LisaB. JohnC. PaulD. Su Lin( )35. Can Su Lin speak English well?A. Y es, he can.B. No, he can’t.C. I don’t know.D. He can speak Japanese.BMr and Mrs Green come from Italy ,but now they live in an old Italian(意大利的) street in New Y ork City.They speak a little English, but usually they speak Italian.They read Italian newspapers. They listen to Italian music.They shop at the Italian grocery store(食品杂货店).Mr and Mrs Green are upset (难过)about their son, John. He lives in a small town outside the city. He speaks very little Italian. He reads American newspapers.He listens to English music.The only time John speaks Italian is when he calls his parents on the telephone or when he visits them every weekend.( )36. Where do Mr and Mrs Green live?A. They live in Beijing.B. They live in New Y ork City.C. They live in Shanghai.D. They live in Italian.( )37. Where are Mr and Mrs Green from?A. They are from America.B. They are from Italy.C. They are from China.D. They are from England.( )38. Where does John live?A. He lives in China.B. He lives outside New Y ork City.C. He lives with his parents.D. He lives in a tall building.( )39. When does John speak Italian? The only time John speaks Italian is____.A. when he reads newspapersB. when he shops at big supermarketsC. when he calls his parents on the telephoneD. when he visits his friends.( )40. What are Mr and Mrs Green afraid? They are afraid that John______.A. often visits his friendsB. lives outside the cityC. shops at big supermarketsD. will forget his language, culture and country41.Bob is a great man, he can speak many____________(语言).42.Can you find New York in the map of the ________(世界)?43.To my surprise, Tom’s parents come from different __________(国家).44.Sarah’s math is poor, but she speaks ________(中文) very well.45. These people are from__________ (澳大利亚), and they live in Sydney,46.Tom is from Japan, he speaks _________ (日语).47.My father likes going to the movies and ________ chess(下棋) after work.48.I don’t like math, it’s too___________(难), I like English.49.My sister is studying in Beijing,and she often_________(写信) to me.50. I like playing sports with my brother on ____________(周末).五、看图填词。

七年级数学下第一周周测练习题附答案

七年级数学下第一周周测练习题附答案

七年级数学下册第一周周测练习题2.17一、选择题:1、下列图形中,∠1与∠2是对顶角的是()A. B. C. D.2、下列说法中正确的有()个.①对顶角相等;②相等的角是对顶角;③若两个角不相等,则这两个角一定不是对顶角;④若两个角不是对顶角,则这两个角不相等.A.1 B.2 C.3 D.43、有下列几种说法:①两条直线相交所成的四个角中有一个是直角;②两条直线相交所成的四个角相等;③两条直线相交所成的四个角中有一组相邻补角相等;④两条直线相交对顶角互补.其中,能两条直线互相垂直的是()A.①③B.①②③C.②③④D.①②③④4、如图,直线AB、CD相交于点O,射线OM平分∠AOC,ON⊥OM,若∠AOM=35°,则∠CON的度数是()A.65° B.55° C.45° D.35°5、如图所示,直线AB,CD相交于点O,OE⊥AB于点O,OF平分∠AOE,∠1=15°30′,则下列结论中不正确的是()A.∠2=45° B.∠1=∠3 C.∠AOD与∠1互为补角 D.∠1的余角等于75°30′6、若点B在直线AC上,AB=10,BC=5,则A、C两点间的距离是()A.5 B.15 C.5或15 D.不能确定7、点P为直线MN外一点,点A、B、C为直线MN上三点,PA=4厘米,PB=5厘米,PC=2厘米,则P到直线MN的距离为()A.4厘米 B.2厘米 C.小于2厘米 D.不大于2厘米8、如图,下列说法不正确的是()A.∠1与∠2是同位角B.∠2与∠3是同位角C.∠1与∠3是同位角D.∠1与∠4是内错角9、如图,CD⊥AB,垂足为D,AC⊥BC,垂足为C.图中线段的长能表示点到直线(或线段)距离的线段有()A.1条 B.3条 C.5条 D.7条10、如图所示,下列说法错误的是()A.∠A 和∠B 是同旁内角 B.∠A 和∠3 是内错角C.∠1 和∠3 是内错角 D.∠C 和∠3 是同位角二、填空题:11、图中是对顶角量角器,用它测量角的原理是.12、如图,直线AB,CD,EF相交于点O,且AB⊥CD,∠1与∠2的关系是。

广东省深圳市文汇中学七年级英语下学期第1周周末作业

广东省深圳市文汇中学七年级英语下学期第1周周末作业

广东省深圳市文汇中学2014-2015学年七年级英语下学期第1周周末作业一.根据要求写出相应的单词。

1. glass (复数) ________2. forget (过去式) _______3. success (形容词) ________4. difficulty (复数) __________5. cry (反义词) ________6. encourage (第三人称单数) _________7. cheer (形容词) ________8. probable (副词) ________二.汉译英。

1. 照顾 ________________2. 对某事要求严格 ________________3. 拉小提琴 ________________4. 讲笑话 _____________5. 努力学习 ________________6. 放弃 __________7. 夜以继日 ____________________ 8. 一个长发女孩 __________________三. 根据句意和首字母或者汉语提示,补全单词。

1. We all know dogs have a good sense of s_____.2. Each p______ in the group should plant a tree.3. Let’s welcome the new m______ to our soccer team.4. Your s_______ made me finish the work quickly.5. The shops r_______ open until late every night.6. Please be ________(耐心的). The train will come in ten minutes.7. They _______(想念) everything in their home town.8. Peter is ________(聪明的) and his teachers like him very much.9. The crops grow well with great ______ (照料) from those farmers.10. The teachers ___________(鼓励) the children to read more books.四. 根据划线部分在句中的意思,找出意思最接近的选项。

人教版七年级数学第一周双休日作业.doc

人教版七年级数学第一周双休日作业.doc

马鸣风萧萧马鸣风萧萧七年级数学第一周双休日作业设计人: 班级 姓名 家长签字一.选择题 (每小题4分,共40分)1、下面四个命题中正确的是( )A. 相等的两个角是对顶角B. 和等于180°的两个角是互为邻补角C. 连接两点的最短线是过这两点的直线 D . 两条直线相交所成的四个角都相等,则这两条直线互相垂直2、如图,直线AB 与直线CD 相交于点O ,E 是AOD ∠内一点,已知OE ⊥AB ,︒=∠45BOD ,则COE ∠的度数是( )A.︒125 B .︒135 C.︒145 D.︒155 (第3题图) 3、如图,点A 、O 、B 是在同一直线上,OD 平分∠BOC,OE 平分∠AOC,则下列说法中错误的是( ) A.∠DOE 是直角B.∠DOC 与∠AOE 互余C.∠AOE 和∠BOD 互余 D .∠AOD 与∠DOC 互余 4、对两条直线相交所得的四个角中,下面说法正确的是( )①没有公共边的两个角是对顶角 ②有公共边的两个角是对顶角 ③没有公共边的两个角是邻补角 ④有公共边的两个角是邻补角 A.①② B.①③ C.①④ D .以上都不对5、下列说法正确的是( )A.如果两个角相等,那么这两个角是对顶角B.有公共顶点的两个角是对顶角C.有公共顶点并且相等的两个角是对顶角 D .如果两个角是对顶角,那么这两个角相等6、如图,已知直线AB ,CD 相交于点O ,OA 平分∠EOC ,∠EOC =100º,则∠BOD 的度数是( )A.20ºB.40º C .50º D.80º7、设PO ⊥AB,垂足为O,C 是AB 上任意一个异于O 的动点,连结PC,则 (第9题图) A.PO>PC B.PO=PC C .PO<PC D.不能确定8、∠1的对顶角是∠2,∠2的邻补角是∠3,若∠3=45º,则∠1的度数是( ) A.45º B .135º C.45º和135º D.90º 9、如图中,∠1的同位角 ( )A.3个 B.4个 C.2个 D.1个10、如图,平面上三条不同的直线相交最多能构成对顶角的对数是( )A.4 B.5 C.6 D.7(第10题图) 二、选择题(每小题3分,共24分)11、两条直线相交与O,共有__2_____对对顶角;三条直线相交与O点共有___6____对对顶角;n 条直线相交于O点,共有__2-(n+3)(n-2)____对 对顶角12、如图,直线AB 、CD 相交于点O ,若∠1=28°,则∠2= 28o .13、如图,直线AB 、CD 相交于O,OE 平分∠BOD,∠AOC=60º,∠EOD=_300 _____,∠EOB 的余角等于_60º _____,∠EOB 的补角的31等于__50º ____. 14、如图,AB ∥CD ,AC ⊥BC ,∠BAC =65°,则∠BCD =_35º _____________度。

7(下)语文周末作业1含答案

7(下)语文周末作业1含答案

实验初中七年级(下)语文周末作业01班级:姓名:家长签字:一、基础知识1.给下面加点字注音或根据拼音写汉字:发绺.()马鬃.()镶.银()地jiào()憎.恶()窘.相()()tuí唐踌躇..()虐.待()摩suō()抖擞.()恣.情()tuì()色颤.动()噗.噗()2.下列句中标点符号使用正确的一项是()A.谈到怎样教育青少年一代?如何适应时代的要求?这位教育家有深刻而独到的见解。

B.古人不是说:“此中有真意,欲辩已忘言”吗?C.在武汉大学举行的校庆仪式上,从日本专程回国的校友团,亲植“樱花树”以示纪念。

D.高中语文课程坚持《全日制义务教育语文课程标准(实验)》提出的基本理念,从“知识和能力”、“过程和方法”、“情感态度和价值观”三个方面出发设计课程目标。

3.指出下列各句的病因,填写在句后的括号中。

A.主语残缺 B.谓语残缺 C.宾语残缺 D.主谓搭配不当E.动宾搭配不当 F.语序不当 G.不合书理(1)中国人民正在努力为建设一个现代化的社会主义强国。

()(2)我们来到大海边,呼吸着新鲜空气、阳光和海水。

()(3)清晨,雄鸡报晓三更时,我就起床,准备出发了。

()(4)农业生产必须走现代化。

()(5)听了姜素椿的报告,使我们受到了很大的教育。

()(6)我国有世界上没有的万里长城。

()(7)我们必须及时纠正并随时发现学习过程中的缺点。

()(8)黑黑的乌云和瓢泼的大雨从空中倾泻下来。

()4.默写。

(8分)(1)在她没来以前,我仿佛是躲在黑暗中睡觉,但她一出现,就把我叫醒了,把我领到光明的地方,,织成五光十色的花边,她马上成为我终身的朋友,,成为我最了解、最珍贵的人……(2)在这四年里,我历尽了艰苦,,我咬紧了牙,哼都不哼一声。

就是在我被人随意辱骂、踢打……的时候,我总是昂着头。

我对自己说:“!”(3)不必说碧绿的菜畦,光滑的石井栏,,紫红的桑椹;也不必说鸣蝉在树叶里长吟,,轻捷的叫天子(云雀)忽然从草间直窜向云霄里去了。

七年级下第一周周末作业

七年级下第一周周末作业

七年级下册第一周周末试卷一、选择题1.计算23)(a 的结果是( )A.aB.5aC.6aD.9a2.计算223)3(a a •-的结果是( )A.49a -B.46aC.89aD.49a3.下列各式正确的为( )A.835m m m =+B.1553a a a =⋅C.734ab b a =⋅D.743)()(c c c =-⋅- 4.下列各式错误的为( )A.0533=⋅-⋅a a a aB.962542m m m m m m =⋅⋅+⋅C.835)()()(b a a b b a -=-⋅-D.523)()()(a b a b b a +=+⋅+5.若9=m x ,27=n x ,则n m x +为( )A.243B.36C.18D.56.在等式⋅2p _______114p p -=⋅中,横线上的代数式应为( )A.5pB.5)(p -C.3p D,.2)(p -7.下列各式正确的是( )A.33)(n n a a a =⋅B.n n a a 3)3(=C.n n a a )()(33=D.m m aa a 32)(=⋅ 8.下列计算中正确的是( )A.222532x x x =+B.13222-=-x xC.222532x x x =⋅D.2223232x x x =• 9.下列计算错误的是( )A.245a a a a =÷⋅B.33a a a =÷C.1)(22=-÷x xD.422x x x x =⋅÷10.2322)104()1025.0(⨯-⨯⨯-的计算结果是( )A.1010B.1010-C.9105.2⨯D.10104⨯11.世界上最小的开花结果植物是澳大利亚的出水浮萍,这种植物的果实像一个微小的无花果,质量只有0.00 000 0076克,用科学记数法表示是( )A.8106.7⨯克B.7106.7-⨯克C.8106.7-⨯克D.9106.7-⨯克二、填空题1.计算:=•510x x _______________; =-32)2(ab _______________。

七年级语文下册周末作业一习题课件新人教版

七年级语文下册周末作业一习题课件新人教版
1 周末作业(一)
1.阅读下面这段文字,根据语境完成后面的题目。 沧海横流,方显英雄本色。闻一多面对白色恐怖,毫无惧 色,慷慨__▲__词;邓稼先隐姓埋名,在艰苦的环境中潜心 研究,鞠躬尽瘁;钟南山面对凶险的(yì)______情,铁肩 担道义,(yì)______然逆行。国家民族的急难前,总有人 挺身而出,扶大厦于将倾,充分彰显中华民族精神血脉里的 中气与能量。
“沉”本义是指“隐没在某处”,在这里指于敏在氢弹研究中 隐姓埋名默默耕耘、谦逊执着,也表现了作者对他由衷的赞 美与敬佩之情。
8.郭永怀和于敏身上有哪些共同的精神?请结合文章内容具 体分析。 郭永怀和于敏身上均具有对科学研究的执着精神:郭永怀研 究十几年,于敏研究28年;两人均有爱国精神:郭永怀在国 庆前夕执意回国参加新中国建设,于敏隐姓埋名,在最艰苦 的环境中填补氢弹研究的空白,做出巨大贡献。
由于大型计算机机时非常紧张,为了加快研究,于敏和团 队几乎时刻沉浸在堆积如山的数据计算中。1965年9月,上海 的“百日会战”最终打破僵局:于敏以超乎寻常的直觉,从大 量密密麻麻、杂乱无章的数据中理出头绪,抽丝剥茧,带领团 队形成了基本完整的氢弹理论设计方案。
然而,设计方案还需经过核试验的检验。西北核武器研制 基地地处青海高原,在那里,科研人员吃的是夹杂沙子的馒头 ,喝的是苦碱水。茫茫戈壁飞沙走石ቤተ መጻሕፍቲ ባይዱ大风如刀削一般。冬天 气温低至零下30摄氏度,道路冻得像搓板。于敏的高原反应非 常强烈,食无味、觉无眠,从宿舍到办公室只有百米路,有时 要歇好几次、吐好几次。即便如此,他仍坚持解决完问题才离 开基地。
1956年国庆前夕,郭永怀携妻女回到阔别16年的祖国。 这一天,他们已经等了太久。
(二)____________ 于敏的科研生涯始于著名物理学家钱三强任所长的近代物 理所。在原子核理论研究领域钻研多年后,1961年,钱三强找 他谈话,将氢弹理论探索的任务交给了他。从那时起,于敏转 向研究氢弹原理,开始了隐姓埋名的28年。 当时的核大国对氢弹研究绝对保密,造氢弹,我国完全从 一张白纸起步。

七年级语文下册 周末作业1(教师版) 苏教版

七年级语文下册 周末作业1(教师版) 苏教版

江苏省盐城文峰中学2011-2012学年七年级语文下册周末作业1(教师版)苏教版一、扎实基础,稳步前进。

1.下列各句中,加点的成语使用不恰当的一句是( C )A.近年来,在各地蓬勃兴起的旅游热中,以参观革命圣地、踏访英雄足迹为特色的“红色旅游”独树一帜....,呈升温之势。

B.某建筑公司会计程某,为填补贪污挪用公款的亏空,不惜再次把巨额公款投入股市,她的这种做法无异于饮鸩止渴....。

C.美国黑人电影明星福克斯和弗里曼在第七十七届奥斯卡奖角逐中当仁不让....,分别夺得最佳男主角奖和最佳男配角奖。

D.中国改革开放以来取得的巨大成就,特别是连续十几年经济持续高速增长的表现,让各国经济界人士都叹为观止....。

2.下列各句中加点的成语使用恰当的一句是( D )A.他最近的状态一直不佳,接连几次考试都不理想,屡试不爽....,心情糟透了。

B.辩论会上,选手们唇枪舌剑,巧舌如簧....,精彩激烈的场面赢得了现场观众阵阵掌声。

C.出于自身利益的考虑,一些地区画地为牢....,实行地方保护主义,人为地分割和控制煤炭资源。

D.导演对筹拍的这部电视剧主要角色的人选讳莫如深....,记者得不到任何信息,大失所望。

请查字典解释以上四个加点成语:A.屡试不爽:屡次试验都没有差错。

B.巧舌如簧:含贬义,意思是指灵动的舌头好象簧片,形容言词巧伪,说得美妙动听。

C.画地为牢:在地面上画一个圈儿当作监狱;比喻只许在指定的范围之内活动。

D.讳莫如深:紧紧隐瞒。

3.下列句子中,没有语病的一句是( C )A.半个世纪以来,他的足迹踏遍了全国20多个省,800多个县,测量、摄影、分析、研究的古建筑和文物达2000余项之多。

B.此次植树助学公益活动,不仅能加速京郊地区的绿化建设,而且种下的主要是晚秋贡梨的树苗。

C.10兆瓦高温气冷核反应堆实验工程的完成,超大规模并行处理计算机的研制成功,标志着我国在相关领域已跨入世界先进行列。

D.在国际间文化交流日趋频繁、不同民族文化相互交融和碰撞的今天,更应重视继承和发扬传统节日文化。

七年级英语下学期第一周周末试题试题

七年级英语下学期第一周周末试题试题

七年级英语周末试卷1制卷人:打自企;成别使;而都那。

审核人:众闪壹;春壹阑;各厅……日期:2022年二月八日。

一、完形填空Hello, my name is Lucy. I come from England. I live in a very big house ___1____ my parents. There is a small ____2___ in front of my house. I grow a lot of beautiful flowers in it. Now let me ____3___ you about my house.This is the sitting room. There is a photo of my ____4___ on the wall. We all look happy in it. We have a big sofa. I like sitting on it to watch TV. There are two bedrooms. One is for my parents and ___5____ is for my sister and me. Our bedroom is not very big, ___6____ it is very comfortable. There is a toy cat on my bed. She is my best friend. I like the ____7___ very much because my parents ____8___ cook delicious food for us in it. We can enjoy the nice food every day. The bathroom is ___9____ my parents’ bedroom and ours. I ___10____ a bath in it every evening. My home is very comfortable and I like it a lot.( )1. A. with B. to C. about D. of( )2. A. shop B. river C. school D. garden( )3. A. tell B. say C. speak D. talk( )4. A. house B. home C. family D. school( )5. A. another B. other C. the other D. the others( )6. A. and B. so C. but D. or( )7. A. bedroom B. balcony C. sitting room D. kitchen( )8. A. never B. sometimes C. often D. seldom( )9. A. in B. at C. from D. between( )10. A. live B. make C. have D. get二、阅读理解ABill Gates has a nice house on a hill by Lake Washington. Inside the house there are seven bedrooms, 24 bathrooms, six kitchens and six fireplaces. It even has a theatre, a library, an exercise room and a swimming pool. You can say the house is very big. However, it doesn’t look so big, because a large part of it is in the hills.The house is famous (著名的) for many reasons. One is its large size, and another is its amazing electronic systems (电子系统). Before a visitor goes into the house, he/she gets a chip (芯片) at the gate. The chip sends information about the visitor to the electronic systems in the house. When the visitor goes into the house, lights are on automatically (自动地). When the visitor goes into a room, the temperature (温度) will change to make the visitor comfortable. When the visitor goes from one room to another, he/she can hear music.Bill Gates began to build his house in 1990. It took him about 7 years to build it. ( )1. Bill Gates’ house doesn’t look very big because ________.A. the house is in a forestB. the house is very modernC. the house is very smallD. a large part of the house is in the hills( )2. Bill Gates’ house is very famous. The writer gives ________ reasons.A. oneB. twoC. fourD. five( )3. The visitor will get ________ at the gate of Bill Gates’ house.A. a map of the houseB. a model houseC. a systemD. a chip( )4. Bill Gates finished building his house in ________.A. 1990B. 1996C. 2021D. 2021( )5. Which is the best title for the passage?A. Bill Gates’ dream homeB. Bill Gates’ houseC. Bill Gates and his houseD. Bill Gates’ familyBThere is a poor man. He has an orange tree. On the tree, there are many fine oranges. One of them is very, very big. It is as big as a football. Nobody sees so big an orange. The poor man is very happy. He takes it to the King (国王). The King is so pleased(快乐) that he gives the man a lot of money for it.When a rich man hears of it, he says to himself, “It’s only an orange. Why does the King give so much money for it? I’ll take my gold cup to the King. He’ll give me more money.〞The next day when the king receives(收到) the gold cup, he says to the rich man, “What a beautiful cup! I’ll show you something wonderful. Please take this great orange away.〞( )6. How many people are there in the story?A. Five.B. Four.C. Three.D. Two.( )7. The orange is ________.A. fine and bigB. fine and beautifulC. good and fineD. small( )8. The rich man takes his gold cup to the King for ________.A. the orangeB. the orange treeC. a footballD. more money( )9. The orange is ________.A. a footballB. like a footballC. like a gold cupD. like an egg( )10. The King receives the orange and the gold cup ________.A. on the same dayB. the next dayC. every dayD. on different daysC11. What do many of Lin Dehua’s classmates do after lunch ?A. They get a good rest.B. They get a nap.C. They chat with each other.D. They do their homework.12. Lin Dehua thinks will help him learn well in the afternoon.A. having a good lunchB. having a napC. doing some exerciseD. having short lunchtime13. What is the meaning of ‘fed up with ’ in Chinese ?A.喜欢B. 渴望C. 厌倦D. 欢送14. How long does Zheng Chuyu exercise at school every day on average (平均)?A. Less than half an hour.B. Two hours.C. More than half an hour.D. Half an hour.15. Which is NOT true ?A. Zheng Chuyu likes playing badminton.B. Zheng Chuyu doesn’t want to be a dull boy.C. Lin Dehua thinks lunchtime is too short now.D. The students seldom have pork for lunch in the dining hall.DHow much sleep do we need? We are all different. Some people need only three hours of sleep a night. Others need ten hours of sleep a night. Most Americans sleep an average (平均) of seven to eight hours a night. After the age of fifty, the average sleeping time goes down to 6.5 hours a night.Most people have a bad night when they can’t fall asleep (入睡). The name of this problem is called insomnia.This isn’t a new problem. Many famous people in history had insomnia, too. Some of these people had special ideas to make them sleep. Benjamin Franklin, the famous inventor, had fourbeds. He moved(挪动) from one to another to fall asleep. King Louis XI V (国王路易十四) of France had four hundred and thirteen beds and hoped to fall asleep in one of them. Mark Twain, the famous American writer, had a different way. He lay on his side across the end of his bed.16. After the age of fifty, the average sleep hours are_______ a night.A. 3 hoursB. 7or 8 hoursC. 6.5 hoursD. 10 hours17. Which of the following is TRUE?A. King Louis XI V was an American.B. Many famous people in history had a bad night when they couldn't fall asleep.C. Benjamin Franklin was a famous writer.D. Most young Americans sleep for an average of 6.5 hours a night.18. Why did King Louis XI V of France have more than four hundred beds?A. Because he hoped to fall asleep.B. Because he was a famous inventor.C. Because he had a lot of money.D. Because he liked to lie on his side across the end of his bed.19. What does the word insomnia mean (意思) in Paragraph (段落) 2?A. too many bedsB. sleep wellC. can’t sleep wellD. problems20. What’s Paragraph (段落) 1 talking about?A. The history of sleep.B. How much sleep do we need?C. The story of famous people.D. Why can’t we sleep?三、词汇运用A.根据所给句子和汉语提示写出恰当的单词,每空一词1. The food there ____________ (尝起来) delicious.2. ‘Dad, where we go?’is one of the most ____________ (受欢送的) TV programmes (节目)inChina now.3. Jack _____________ (搬运) the books to the classroom every day.4. ________ (千) of people lost their lives in Sichuan because of the earthquake.B.根据所给句子和首字母提示写出恰当的单词,每空一词5. C____________ beautiful stamps makes me feel great.6. He invited her to have dinner at a French r____________.7. Can the little boy write the numbers from z________ to thirty?C.根据所给句子和音标提示写出恰当的单词,每空一词8. Please ____________ /nɔk/ on the door before entering the teachers’ office.9. Are you ____________ /fri:/ this afternoon? Let’s go swimming.10. Sweet snacks give us ____________ /'enədʒɪ/ but they are not healthy food.11. Would you please look after the little boy? His parents ____________ (not be) at home now.12. I seldom eat sweets because they are bad for my ____________ (tooth).13. Amy is very busy and doesn’t have much time ____________ (play) games.14. Kitty is in her bedroom. She ____________ (lie) on the bed and watching TV.15. Mr. Wu teaches ____________ (they) Chinese this year.四、任务型阅读请根据短文内容,用正确的信息填空,完成表格,每空一词。

七年级数学下学期第1周周末作业试题

七年级数学下学期第1周周末作业试题

卜人入州八九几市潮王学校江义七年级数学下学期周末作业〔第1周〕学号:班别:成绩:一、选择题〔每一小题3分,一共30分〕1、32x x ⨯的运算的结果是〔〕A.6xB.5xC.26xD.25x2、以下的计算正确的选项是〔〕A.632a a a =⋅B.4442x x x =⋅C.1266x x x =+D.65x x x =⋅3、以下的计算正确的选项是〔〕A.5322a a a =⋅B.2464x x x =⋅C.633)(x x =D.632)(x x =4、4)2(xy -的计算结果是〔〕A.-2x 4y 4B.8x 4y4 C.16x 4y 4D.16xy 5、22+m x 可写成〔〕A 、2x m+1B 、x 2m +x 2C 、x 2·x m+1D 、x 2m ·x 2 6、在等式a 2·a 4·()=a 11中,括号里面的代数式应当是〔〕 A 、a 7B 、a 6 C 、a 5D 、a 47、32)(x 的运算的结果是〔〕A.6xB.5xC.8xD.25x8.计算201720164)25.0(⨯-的结果是〔〕A .-4B .1C .4D .420219、5=m a ,那么m a 2的结果是〔〕A .10B .5C .25D .710、2,3==nm a a ,那么n m a +2的值是〔〕A .18B .8C .11D .12二、填空题〔每一小题3分,一共18分〕11、102表示的意义是个10相乘的积,a 3表示的意义是。

12、64)4()4(-⨯-=;(-x)2·(-x)3= 13、计算:〔1〕7×73×74=(-c)3·(-c)m =14、______________________)102(22==⨯;___________)2(32=-b a15、假设一个正方体的边长变成原来的3倍,那么它的体积变成原来的_________倍。

菲翔学校七年级下学期第1周周末作业试题

菲翔学校七年级下学期第1周周末作业试题

墨达哥州易旺市菲翔学校大丰刘庄镇三圩初级二零二零—二零二壹七年级语文下学期第1周周末作业自读课本名句〔〕1.多行不义,2.行百里者3.代有才人出,4.非我而当者,;是我而当者,;谄谀我者,5.不积跬步,;不积小流,6.尺有所短,7.为者常成,8.一叶蔽目,;两豆塞耳,9.差之毫厘,10.学,;教,11.行远必自尔,12.安不忘危,13.东隅已逝,14.欲穷千里目,15.沉舟侧畔千帆过,16.谁知盘中餐,17.不识真面目,18.春色满园关不住,19.拾穗虽利,;束炬夜驰,20.敏而好学,21.三人行,。

择其善者而从之,22.羞恶之心,23.一夫当关,24.射人先射马,25.奇文一共欣赏,26.海内存知已,27.借问酒家何处有,28.沾衣欲湿杏花雨,29.有意栽花花不发,七下1.桃李不言,2.见善那么迁,3.知而好问,4.蚍蜉撼大树,5.读书百遍,6.已所不欲,7.兼听那么明,8.为者常成,9.靡不有初,10.皮之不存,11.前事不忘,12.亡羊补牢,13.路曼曼其修远兮,14.近朱者赤,15.有那么改之,16.人无远虑,17.凡事豫那么立,18.知人者智,19.不患人之不己知,20.见贤思齐焉,21.张而不弛,;弛而不张,。

一张一弛,。

22.天下同归而殊途,23.不飞那么已,;不鸣那么已,24.一年之计,;十年之计,;终身之计,。

25.临河而羡鱼,26.泰山不让土壤,;河海不择细流,。

27.人固有一死,,。

28.心之官那么思。

,。

29.长袖善舞,自读课本名句〔〕1.,必自毙2.者半九十3.,各领风骚数百年4.,吾师也;,吾友也;,吾贼也5.,无以致千里;,无以成江海6.,寸有所长7.,行者常至8.,不见泰山;,不闻雷霆9.,谬以千里10.,然后知缺乏;,然后知困11.,登高必自卑12.,盛必虑衰13.,桑榆非晚14,更上一层楼15.,病树前头万木春16.,粒粒皆辛苦17.,只缘身在此山中18.,一枝红杏出墙来19.,不如躬耕;,不如早行20.,不耻下问21.,必有我师焉。

七年级下期数学第一周周末作业

七年级下期数学第一周周末作业

七年级下期第一周周末定时作业姓名:得分:一、选择题(每题4分,共48分)1、同一平面内两直线的位置关系可能是()A、相交或平行B、相交或垂直C、平行或垂直D、不能确定2、过一点画已知直线的平行线()A、有且只有一条B、不蹲在C、两条D、不存在或有且只有一条3、如图,直线AB、CD相交于点O,若∠1+∠2=120°,则∠AOD的度数为()A、120°B、130°C、140°D、150°4、如图,直线AB与CD相交于点O,∠1=∠2,若∠AOE=140°,则∠AOC的度数为()A、40°B、60°C、80°D、100°5、如图,有以下判断:①∠1与∠3是对顶角;②∠1与∠4是内错角;③∠1与∠2是同旁内角;④∠3与∠4是同位角,其中不正确的是()A、①B、②C、③D、④第3题图第4题图第5题图6、平面内三条直线两两相交最多能构成对顶角的对数是()A、7B、6C、5D、47、在同一平面内,直线a∥b,b⊥c,则a与c的位置关系是()A、垂直B、平行C、相交但不垂直D、垂直或平行8、如图,PO⊥OR,OQ⊥PR,则点O到PR所在直线的距离是线段()的长。

A、POB、ROC、OQD、PQ第8题图第10题图第12题图9、如图12所示,下列条件中,能判断直线AB∥CD的是()A、∠2=∠3B、∠1=∠3C、∠3=∠4D、∠1=∠410、如图,直线AB、CD相交于点O,O E⊥CD与点O,OF平分∠AOE,若∠BOD=20°,则∠EOF的度数为()A、50° B。

55° C、60° D、65°11、2条直线相交有2对对顶角,3条直线相交于一点有6对对顶角,4条直线相交于一点有12对对顶角,则10条直线相交于一点有()对对顶角。

A、70B、80C、90D、10012、如图,若要使AB∥CD,则α的度数为()A、70°B、75° C 、80°D、85°DCB A432 1第9题图OA B120°α25°C D二、填空题(每题4分,共24分)13、如图,要从小河引水到村庄A,请设计并作出一最佳路线,理由是:。

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七年级下册第一周周末试卷
一、选择题
1.计算23)(a 的结果是( )
A.a
B.5
a C.6
a D.9
a 2.计算223)3(a a ∙-的结果是( )
A.4
9a - B.4
6a C.8
9a D.4
9a 3.下列各式正确的为( )
A.835m m m =+
B.1553a a a =⋅
C.7
34ab b a =⋅ D.743)()(c c c =-⋅- 4.下列各式错误的为( )
A.0533=⋅-⋅a a a a
B.9
62542m m m m m m =⋅⋅+⋅ C.835)()()(b a a b b a -=-⋅- D.523)()()(a b a b b a +=+⋅+ 5.若9=m
x ,27=n
x ,则n
m x
+为( )
A.243
B.36
C.18
D.5 6.在等式⋅2p _______11
4p p -=⋅中,横线上的代数式应为( )
A.5p
B.5)(p -
C.3p D,.2
)(p -
7.下列各式正确的是( )
A.33)(n n a a a =⋅
B.n n a a 3)3(=
C.n n a a )()(33=
D.m
m a a a 32)(=⋅
8.下列计算中正确的是( )
A.222532x x x =+
B.13222-=-x x
C.2
22532x x x =⋅ D.22
2
3
232x x x =
∙ 9.下列计算错误的是( )
A.2
4
5
a a a a =÷⋅ B.3
3
a a a =÷ C.1)(2
2=-÷x x D.4
2
2
x x x x =⋅÷
10.2
32
2)104()1025.0(⨯-⨯⨯-的计算结果是( )
A.10
10 B.10
10- C.9105.2⨯ D.10
104⨯
11.世界上最小的开花结果植物是澳大利亚的出水浮萍,这种植物的果实像一个微小的无花果,质量只有0.00 000 0076克,用科学记数法表示是( )
A.8
106.7⨯克 B.7
106.7-⨯克 C.8
106.7-⨯克 D.9
106.7-⨯克 二、填空题
1.计算:=∙510
x x _______________; =-3
2)2(ab _______________。

2.=⋅-⋅--a a a a m m m 322
_______________; =-⋅-3223)()(a a _______________。

3.计算
=⋅-⋅542)(a a a _______________; =-4362)()(2a a _______________; =-∙-3223)()(x x _______________; =-⋅-2222)2()3(ab bc a _______________。

4.(1)如果42=x
,那么=+3
2x __________。

(2)已知81
1
3=m ,则=m _______________。

三、计算题
(1)25
a a ⋅- (2)322)()(
b b b -⋅ (3)4
5)2(a -
(4)4
23)(y y ∙- (5)4232-⨯ (6)1
)7
1()7
1(--∙
(7)5
11
a a ÷ (8)2
25)()2(x x ÷
(9)348432)2()()2(b a b a ⋅-+- (10)24233362)()()(a a a a a a -+-+-⋅+⋅
(11)20132012)125.0(8-⨯ (12)102100
)9()9
1(-⨯-
四、计算
(1)xy xy xy y x 32322⋅-⋅ (2))3()4(2y x xy xy +⋅-
(3)2
2
2)2
1()4()2
1(xy y x +-∙ (4))3
4
()532
3(2222
y x y xy x -∙-+
五、解答题 1.若162=+n
m x ,2=n x ,)0(≠x ,求n m x +的值。

2.已知210=m
,310=n
,求n
m 3210
-的值。

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