2010-2011七下2单元检测题

2010---2011学年度小学语文第七册第二单元测试题班别: 姓名: 分数:第一部分:基础知识积累与运用（34分）一读拼音写汉字。

5huái yíyǐn bìhén jìsuí yù ér ān（）（）（）（）二比一比，再组词。

4蜡（）浑（）毫（）茎（）腊（）挥（）豪（）经（）三写出下列词语的反义词和近义词。

4近义词：宽敞---（）惊奇---（）反义词：干燥---（）光滑---（）四把下列的词语补充完整。

6精神（）（）不可（）（）（）如（）海（）（）不安（）不可（）枉（）心（）五本单元我们学了一首歌谣，让我来展示一下吧！6正月，二月，五月，六月，再写两句：，，六我会默写古诗《题西林壁》。

9我会填：《题西林壁》作者是，是代诗人。

诗人观察的角度有。

第二部分：阅读积累与运用（36分）（一）认真阅读《爬山虎的脚》选段，按要求答题。

爬山虎刚长出来的叶子是（）的，不几天叶子长大，就变成（）的。

爬山虎的嫩叶，不大引人注意，引人注意的是长大了的叶子。

那些叶子绿得那么（），看着非常（）。

叶尖一顺儿朝下，在墙上铺得那么（），没有（）起来的，也不留一点儿（）。

一阵风吹过，一墙的叶子就漾起波纹，好看得很。

以前，我只知道这种植物叫爬山虎，可不知道它怎么能爬。

今年，我注意了，原来爬山虎是有脚的。

爬山虎的脚长在茎上。

茎上长（）的地方，反面伸出（）的六七根细丝，每根细丝像蜗牛的（）。

细丝跟新叶子一样，也是嫩红的。

这就是爬山虎的脚。

爬山虎的脚触着墙的时候，六七跟细丝的头上就变成小圆片，巴住墙。

细丝原先是直的，现在弯曲了，把爬山虎的嫩茎拉一把，使它紧贴在墙上。

爬山虎就是这样一脚一脚地往上爬。

如果你仔细看那些细小的脚，你会想起图画上蛟龙的爪子。

1按课文内容填空。

102我能画一幅图，说明爬山虎的脚相对于茎，叶生长的位置，以及它的形状。

33用“——”划出文中的一句比喻句，这里把比作。

第二单元综合检测卷一、单项选择(每小题1分，共15分)( )1. My mother wants me to be office worker, but I would like to be a volunteer to work for ______old people.A. an; anB. an; theC. a; theD. a; an( )2．Mum，my mobile phone is________．I want to buy a new_______．A．broken；it B．broke；one C．broke；it D．broken：One( )3．一What do you often do in your free time?一I have some hobbies like________．I often do some_________when I am free．A．read；reading B．reading；read C．to read；read D．reading：reading( )4．V olunteers share their skills and help people ______the neighbourhood _______different problems．A．with；with B．in；in C．with；in D．in：with( )5．I must thank Andy ________helping me so much_________my Chinese．A．with；for B．for；for C．for；with D．with：with( )6．一What are your neighbours like? 一__________A．They are like my friends．B．They are friendly and helpful．C．They like playing sports．D．They are workers arm waiters．( )7. Meimei's father is a in a restaurant.A. doctorB. teacherC. nurseD. cook( )8. The girl goes jogging fit every day.A. to keepB. keepingC. keepD. keeps( )9. Tomorrow will be my sister's birthday. I'll as a present.A. give her a bookB. give a book for heC. give her for a bookD. give a book her( )10. ─ Would you please find to tell us? ─ All right.A. something interestingB. interesting somethingC. anything interestingD. interesting anything( )11.─ Dinner is ready. Help yourself!─ Wow! It delicious. Could you please tell me how to cook it?A. tastesB. looksC. soundsD. feels( )12. ─ Is Jack going to see a film in a few minutes? 一No. He to the teachers' office.A. will goingB. goesC. goD. is going( )13. If you are tired, you'd better have a good rest. It will make you better.A. to feelB. feelsC. feelingD. feel( )14. ─ you free next Monday? I'm not cure. If I have time, I'll call you.A. Are; beB. Will; beC. Do; beD. Are; going to( )15. ─ There two football matches in the sports centre next week. —Great!A. is going to haveB. will haveC. is going to beD. are going to he二、完形填空(每小题1分.共10分)Do you know your grandparents well? Are they happy?1 people in Yangzhou are happy. In the morning you can see old people play sport in the park. Mr andMrs Chen are always 2 them. They say they are 3 after their sons and daughters go to work and grandchildren go to school. Mrs Chen is in a Yang Opera(扬剧)Club. So she learn to sing opera in the 4 . It's really interesting. Mr Chen is in a( n) 5 club. There he can run, swim and play ball games. Their friends Mr and Mrs Zhang aren't in 6 clubs. They play computer games at home because they want to learn 7 about their grandchildren. Their grandchildren all love them very much. These days some old people want 8 a Shopping Club. In the club they can talk about how to buy things at a(an) 9 price.How happy the old people in Yangzhou are!Your grandparents well? Are they happy? They all think they are lucky to live in a place 10 Yangzhou. ( )1.A. Old B. Young C. Small D. Big( )2. A. for B. Among C. between D. with( )3. A. lonely B. happy C. excited D. busy( )4. A. class B. team C. club D. group( ) 5. A. art B. sports C. music D. English( )6. A. no B. any C. some D. not( )7. A. a lot of B. lots of C. a lot D. lot of( )8. A. having B. to have C. have D. has( )9. A. high B. expensive C. cheap D. good( )10. A. look B. look like C. seem like D. like三、阅读理解(每小题2分.共30分)AWe can see walls everywhere in the world. But the Great Wall of China is the longest one of all. The Chinese call it "The Ten-thousand-li Great Wall". In fact, it's more than 8,000 kilometres long. It’s 4～5 metres wide. In most places, five horses or ten men can walk side by side. When you visit the Great Wall, you want to know how the Chinese people were able to build such a great wall thousands of years ago. Without modern machines, it was really very difficult to build it. They had to do all the work by hand. It took millions of men hundreds of years to build it. The Great Wall has a history of over two thousand years. The kings began to build the first parts of it thousands of years ago. Then Qin Shi Huang had all the walls joined up(连起来).He thought that could keep the enemies(敌人)out of the country. Today the Great Wall has become a place of interest. Not only Chinese people but also people from all over the world come to visit it.( )1.The Great Wall is the longest wall in .A. ChinaB. AmericaC. the worldD. Japan( )2. How long is the Great Wall?A. It’s less than eight hundred kilometres.B. It’s more than eight million kilometres.C. It’s eight thousand kilometres.D. It’s over eight thousand kilometres.( )3. It took men years to build the Great Wall.A. millions; millionsB. hundreds of; hundreds ofC. millions of; hundreds ofD. hundreds of; millions of( )4.The Great Wall was built .A. by people all over the worldB. without modern machinesC. with some other countries' helpD. by all the Chinese kings( )5. Qin Shi Huang thought the Great Wall could .A. keep the enemies out of his countryB. keep his body in itC. welcome all the peopleD. make his country beautifulBParis is a very beautiful city but I won't call it the most romantic(浪漫的)city at all! It is difficult to find a hotel! That is quite funny. Some policemen help us and then we find a hotel! The hotel is on the sixth floor and it is tiring to climb up the stairs! The room is very simple but it has a big bathroom. We go out for a walk to visit the city. The Louvre Museum is our favourite one. There are some wonderful pieces of art there. The Eiffel Tower looks so cool from a far place, but when we get close to it, it doesn’t look so good. We also don't feel happy about the expensive food. Most of the time we enjoy Paris, but the weather is not always good. It often rains. We feel a little troublesome because few people can speak English and we can't speak French. But I'm still glad because this is just the beginning of our travel.( )6.Who helps the writer find a hotel?A. Some students.B. Some policemen.C. Some workers.D. Some farmers.( )7.There is a big in the room of the hotel.A. bedroomB. living roomC. bathroomD. kitchen( )8. What does the Eiffel Tower look like from a far place?A. Cool.B. Short.C. Ugly.D. Bad.( )9. The underlined word "simple" means ““in Chinese.A.简陋的B.复杂的C.容易的D.奢华的( )10. The passage mainly(主要)tells us .A. Paris is not a good place to travelB. the writer is looking for a good hotelC. the writer starts travelling from ParisD. it is important for people to speak FrenchC11. Yu Wei will meet Ren Xue at the school gate .A. at 8:00, on May 23B. at 8:00, on May 24C. at 16:00, on May 23D. at 16:00, on May 2412. Tomorrow Yu Wei and Ren Xue will probably .A. go hikingB. go to a partyC. go to the moviesD. join the Sunshine Club13. Which number can Maria call at if her MP5 is lost?A. 84676352.B. 87539683.C. 87539682.D. 87058344.14. Which of the following people is allowed to join the club?A. A 10-year-old kid.B. A 14-year-old boy.C. A 19-year-old student.D. A 30-year-old parent.15. We can know that the clubA. is on Land StreetB. costs 35 yuan a weekC. opens once a weekD. is open for four hours a week四、词汇(每小题1分，共20分)A.根据句意及首字母、英文或汉语提示完成单词。

新目标英语七下Unit 2单元检测题下列短语。

1. 起床__________2. 淋浴_______________3. 到达___________________4. 回家__________5. 刷牙_____________句意及音标写出正确的单词。

1. Do you _________ /'l I sən/ to English tapes every morning?2. I take the No.85 bus to the _________ /həu'tel/3. Frank often __________ /ra I ts/ to his pen pal on weekends.4. I do my ___________/'həumwə:k/ every evening.5. Can you ________ /tel/ me something about yourself ?III. 选择填空。

1. After _______ lunch he plays _______ guitar.A. the , theB. /, /C. / , theD. the , /2. I want to know something _______ your evening.A. aboutB. onC. aroundD. in3. He _________ at 6:00 in the afternoon.A. get homeB. gets to homeC. gets homeD. go to home4. _______ at 8：00 in the morning.A. The classes beginsB. Class beginC. Class beginsD. Begin class5. He _________ his homework ________ Sunday morning.A. doesn’t, onB. don’t do, inC. don’t, inD. doesn’t do, on6. ---What’s the time ? ---_______9:40.A. ItB. It’sC. ThisD. This is7. Hurry up! It’s time ________ school.A. go toB. forC. to goD. to going8. Mike likes ______ TV and Jim likes ______ books.A. to watch; to readB. to watch; to seeC. to see ; to readD. to see; to look9.Now please look ________ the picture and listen ________ me.A.at;atB.at;toC.to;atD.to;to10. .It’s ________ now.A.nine and forty-fourB.nine-forty-fourC.nine forty-fourD.nine and forty four11.---- do you usually get up?---- At six o’clock.A. WhatB.What timeC. Why12.Jim housework on weekdays. He it on weekends.A. doesn’t do; doesB. doesn’t ;doesC.isn’t do; doesD.doesn’t ;do13.----Tell us something about Canada,OK?---- I’m sorry. Jack I have ever been there.A. Either; orB.Not only; but alsoC.Both; andD.Neither;nor14.It’s a good to have break-fast every morning.A. hobby tB.jobC.menu15.---- It’s said that this kind of tofu smells terible.---- That’s true . But it delicious.A. feelsB.soundsC.tastes16.I often have egg and a glass of mild for breakfast every day .A. an; /B.a; /C.an; theD.a; the17.What number bus do you ?A. haveB.getC.take18.Tony often goes to bed nine o’clock.A. inB.onC.at19.He his homework Sundays.A. doesn’t; onB.don’t do ; inC. doesn’t do; onD. don’t ; on20.Tom usually goes to school 7:30 the morning.A. at ; inB.in; atC.on; inD.at; onIV.完型填空Gina is 1 American girl . She is 2 New York . She’s thirteen . She 3 in No.5 Middle school in Zhengzhou. Gina often 4 up at 6:30 on weekdays . she often has a cup of tea, an egg and 5 bread for breakfast . She goes to school at 7:30 and 6 there before 8:00. Gina has breakfast 7 her parents at 7:25 “Have a cake, Gina. 8 very nice,”9 her mother. “Sorry, Mum. I must 10 now. I’m getting late. School starts at 8:00,”says Gina.1. A. a B/. C. the D. an2. A. at B. to C. in D for3. A. study B. studies C. studying D studys4. A. get B. gets C. put D puts5. A. m uch B. any C. many D some6. A. get B. get to C. gets D gets to7. A. with B. for C. from D at8. A. Its B. It’s C. It D They’re9. A. says B. speaks C. tells D talks10. A. to go B. goes C. go D goingV.补全对话从方框中所给的句子中选择合适的句子补全对话。

1．人呼出的气体和吸入的气体相比，成分的主要变化是（）A.氧气增加，二氧化碳减少B.氧气和二氧化碳都不变C.氧气和二氧化碳都减少D.氧气含量减少，二氧化碳含量增加2．法医判断死婴是否产前死亡的方法之一是将死婴的肺剪下一块，投入水中，下沉者为产前死婴，因为（）A．肺泡内充满了痰液 B.肺泡被血块堵塞C. 肺未吸入空气呈实体状态D.婴儿肺的质量大3．当肋间外肌和膈肌同时舒张时，下列叙述错误的是（）A．气体进入肺B．气体自肺内排出C．胸廓由大变小D．胸廓内气压瞬时增大4．鼻黏膜的功能是（）①粘住灰尘②湿润空气③杀死细菌④阻挡灰尘⑤温暖空气⑥气体交换A.①③⑤B.②④⑥C.③④⑥D.①②⑤5．能使吸入的气体变得清洁的结构有（）①声带②气管、支气管内表面的纤毛③鼻黏膜④会厌软骨⑤鼻毛⑥嗅细胞A.③⑤⑥B.①②④C.②③⑤D.①④⑤6．下列器官中，既属于消化系统，又属于呼吸系统的是（）A.口腔B.鼻腔C.咽D.喉。

7．人受凉感冒时，鼻腔常常被阻塞，这是因为（）A.扁桃体发炎B.气管发炎C.鼻腔黏膜充血D.鼻腔黏膜分泌过多8．人在进食吞咽的食物，一般不会进入气管的原因是（）A.悬雍垂的阻当B.会厌软骨盖住了喉C.声门裂缩小D.环状软骨缩小9．下列关于肺泡适于气体交换的结构特点的叙述，不正确的是（）A.肺泡外包绕着丰富的毛细血管B.肺泡壁由软骨支撑；C.毛细血管壁是一层上皮细胞D.肺泡壁也是一层上皮细胞。

10．下图是人在平静呼吸时肺内气体压力变化的示意图，处于a点时，肺内气压与外界气压的关系是（）A.肺内压＞外界气压B.肺内气压＝外界气压C.肺内气压＜外界气压D.以上三者都是11．当膈肌和肋间外肌收缩时，外界、肺泡、胸腔内的气压（）A.外界＞肺泡＞胸腔B.胸腔＞肺泡＞外界C.外界＞胸腔＞肺泡D.肺泡＞胸腔＞外界12．由于痰中含有大量的细菌和病原微生物，所以为了保护环境，不能随地吐痰，那么痰是在哪个器官中产生的呢（）A.鼻B.咽C.喉D.气管13．长跑时，体育老师建议尽量用鼻吸气，用嘴呼气，原理是鼻腔能对吸入的气体进行多种处理。

七年级数学试卷一、细心选一选（每小题3分，共30分） 1．计算：–2 a 2+ a 2的结果是（ ）A ．–3 a 2B ．–a 2C ．–3 a 4D ．–a 4 2．下列说法中，正确的是（ ）A ．同位角相等B ．内错角相等C ．对顶角相等D ．同旁内角互补 3．下列式子中一定成立的是（ ）A 、（a － b ）2 = a 2 － b 2B 、(a + b)2 = a 2 + b 2C 、(a － b)2 = a 2 －2ab + b 2D 、(－a － b)2 = a 2 －2ab + b 24．小明和三名女生、四名男生一起玩丢手帕游戏，小明随意将手帕丢在一名同学的后面，那么这名同学是女生的概率为（ ） A 、73 B 、83 C 、74D 、无法确定 5．计算 （–a ）6÷（–a ）3的结果是（ ） A ．a 3B.–a 2C.–a 3D. a 26．梵帝冈是世界上最小的国家，它的面积仅有244.0千米，相当于天安门广场的面积。

请你估计一下，梵帝冈的百万分之一大约相当于（ ）（A ）一间教室地面的面积 （B ）一个操场的面积 （C ）一只铅笔盒盒面的面积 （D ）一张课桌面的面积 7．若)3)((++x m x 展开式中不含x 的一次项，则m 的值为（ ）A 3B –3C 0D –6 8．如图, 下列判断中错误的是 （ ）A.∠A +∠ADC =180°→AB ∥CDB. AD ∥BC →∠3=∠4C. AB ∥CD →∠ABC +∠C =180°D. ∠1=∠2→AD ∥BC9．如果两条平行线被第三条直线所截, 那么一组同位角的平分线（ ） A. 互相平行 B. 互相垂直 C. 交角是锐角 D. 交角是钝角 10．设a m=8，a n=16，则anm +=（ ）A ．24 B.32 C.64 D.128二、耐心填一填（每小题3分，共24分）11．某种细菌的直径约为0.02微米，用科学计数法表示该细菌的直径约为 米A BDC123412．如右图，是一把剪刀，若,9021︒=∠+∠，则=∠2 13．若=+==+2255b a ，，ab b a 则 ，14．当右图中的∠1和∠2满足__________时，能使OA ⊥OB . （只需填上一个条件即可） 15．计算：21-－（－21+23）0= 16. 2001年3月，国家统计局公布我国总人口为129533万 人，如果以亿为单位，保留三位有效数字，可以写成约 亿人。

班级____________ 姓名____________ 命题人：商则坡审核人：王毅一．积累与运用（２０分）1.下列词语书写及加点字注音全都正确的一项是（）（2分）A. 澎湃惩．罚(chãng ) 懊．悔（ào ）九曲．回环（qǔ）田垄B．斑斓哺．育（bǔ）默契（．．qì）嗥．鸣（háo ）迫不急待C. 怪诞哽咽（．．yâ）强．迫（qiǎng）炽．痛（chì）污秽D .字帖亘．古（gân）祈．祷（qǐ）踱．步（duó）亦复如是2．阅读下面的短文，按要求回答问题。

（5分）生命也不完全是为了抵达。

就像花草，并不是非要到达某一个季节才算实现价值；就像，并不是非要到达。

因为生命中绝大部分的风景总是在途中，生命主要是为了经历。

就像候鸟，不停地qiānxǐ（）就是为了经历季节和风雨；就像河流，不息地流动就是为了经历交汇和起伏。

因为具体的经历总是显得那样琐碎、那样平凡、那样漫长又那样的不胜其烦，所以恰恰是它们构成了一个个真实的精彩的人生。

这才是生命最弥足珍贵的状态。

（1）根据拼音写出文段括号处应填入的词语。

qiān xǐ（）（2）联系上下文，仿照画横线的句子在横线处补充恰当的语句。

就像，并不是非要到达。

（3）修改画波浪线处句子的语病，把正确的写在下面横线上。

3.名著阅读。

（4分）太阳在伏尔加河上空静悄悄地浮动着，周围的景致在时时刻刻变换着，时时刻刻都是新的。

翠绿的山好似大地的漂亮衣服。

沿岸有城市和乡村，远远看去宛如一块块甜点心。

水面上漂着金黄色的秋叶。

“你瞧，多么好啊!”外祖母不断地这样说，一会儿跑到船这边，一会儿又跑到船那边，她容光焕发，高兴极了。

她常常对着河岸出神，把我也给忘了。

她站在船边，两手交叉在胸前，微微笑着，一声不吭，眼里含着泪水。

我拉拉她的黑裙子，她惊了一下，说她仿佛在打瞌睡，做了一个梦似的。

我问她为什么哭?她微笑着说：“亲爱的，我哭是因为快乐，因为年老。

部编版七年级语文下册第二单元检测题满分：100分考试时间：150分钟得分：________一、语文知识积累（1～5题，每题2分，第6题8分，共18分）1．下列词语中加点字的注音不正确的一项是（）A．嗥．鸣（háo）浊．流（zhuó）呻．吟（shēn）浩浩荡．荡（dànɡ）B．田垄．（lǒnɡ）召．唤（zhào）磅．礴（pánɡ）苛．捐杂税（kē）C．辔．头（pèi）哽．住（ɡěnɡ）哺．育（pǔ）不可捉．摸（zhuō）D．机杼．（zhù）污秽．（huì）督．学（dū）永垂不朽．（xiǔ）2．下列词语中没有错别字的一项是（）A．屏障蚱蜢澎湃坚难险阻B．斑斓懊悔宝藏一泄万里C．宛转山巅惩罚九曲连环D．谰语揣磨喧闹亦复如是3．下列句子中加点的词语使用不恰当的一项是（）A．人生的征途中，有艰难困苦的逆境，也有峰回路转．．．．的机遇。

B．南海诸岛自古以来就是中国的领土，这一点是毋庸置疑．．．．的。

C．一提起该电影明星，人们首先想到的就是她那双扑朔迷离．．．．的大眼睛。

D．汹涌的河水紧贴悬崖咆哮而下，滔滔不绝，一泻万丈．．．．。

4．下列句子有语病的一项是（）A．他是近年来深受观众喜爱的主持人，常常妙语连珠，拥有广泛的支持者，他有很高的收视率。

B．谁能否认李时珍对中国的医学事业做出的巨大贡献呢？C．开展“绿色网络进校园”活动，是保护未成年人健康成长的需要。

D．这次脱贫攻坚阶段总结会尽管时间短，但是内容很丰富，主题很鲜明，大家都觉得收获很大。

5．下列表述不正确的一项是（）A．《黄河大合唱》是冼星海最重要的也是影响力最大的一部大型合唱声乐套曲。

B．“老山界”是“越城岭”的土名，文题用土名，通俗亲切，暗示红军是人民的军队。

C．报告文学是运用文学艺术，真实、及时地反映社会生活事件和人物活动的一种文学体裁。

它的基本特征是新闻性、文学性、政论性。

第二单元检测题时间：120分钟满分：120分一、积累与运用(25分)1．下列加点字注音完全正确的一项是( D )(2分)A．哽．(ɡěnɡ)住亘．(hèng)古田垄．(lǒnɡ)污秽．(huì)B．哺．(pǔ)育惩．(chénɡ)罚懊．(ào)悔胡骑．(jì)C．屏．障(pínɡ) 可汗．(hàn) 镐．(ɡǎo)头婉转．(zhuàn)D．燕．(yān)山泛．(fàn)滥郝．(hǎo)叟逼狭．(xiá)2．下列词语中没有错别字的一项是( B )(2分)A．斑澜怪诞枯躁惊涛澎湃B．蚱蜢丰饶浊流九曲连环C．摇蓝险峻体魄丛山叠岭D．挚痛滋长暄闹绝壁断崖3．下列加点词语使用不当的一项是( B )(2分)A．学校操场上人声鼎沸．．．．，热闹非凡。

一场庆元旦趣味体育联欢活动正热火朝天地进行。

B．撒贝宁主持的《开讲啦》节目鲜为人知．．．．，其青春活泼的主持风格深受广大青少年朋友青睐。

C．精彩的演奏戛然而止，一直鸦雀无声．．．．的大厅里，随即响起了雷鸣般的掌声。

D．看到浩浩荡荡的长江一泻千里．．．．，气势磅礴，我们的心胸变得更加开阔。

4．(2016，安顺)下列各句中没有语病的一项是( C )(2分)A．由于团省委的一系列关爱活动，使留守儿童感受到了大家庭的温暖。

B．我们只要与自然和谐相处，才能保护好我们赖以生存的家园。

C．青年人应当把自己的梦想与民族的梦想紧密相连，刻苦学习，在追逐梦想的过程中为中国梦的实现而贡献力量。

D．在旅游旺季到来之际，我市推广并通过了“美丽乡村游”的休闲旅游政策。

5．下列对课文的分析不正确的一项是( A )(2分)A．《黄河颂》作者端木蕻良在该歌词中以丰富的艺术形象、壮阔的历史场景和磅礴的气势，表现出黄河儿女的英雄气概。

B．《土地的誓言》以倾诉式的语言，抒发了作者对已被日寇侵占的家乡的深深眷恋之情，具有强烈的爱国色彩。

浙教版数学七年级下册第2章单元检测一、选择题1．下列方程中，属于二元一次方程的是( B ) A ．x ＋xy ＝8 B ．y ＝x －1 C ．x ＋1x ＝2D ．x 2－2x ＋1＝02．方程组⎩⎨⎧3x ＋2y ＝19，2x －y ＝1的解为( A )A.⎩⎨⎧x ＝3，y ＝5B.⎩⎨⎧x ＝5，y ＝2C.⎩⎨⎧x ＝3，y ＝－5D.⎩⎨⎧x ＝5，y ＝93．已知⎩⎨⎧x ＝2，y ＝－1是关于x ，y 的方程2x ＋ay ＝6的一个解，则a 的值为( B )A ．－3B ．－2C ．2D ．3【解析】 ∵⎩⎨⎧x ＝2，y ＝－1是关于x ，y 的方程2x ＋ay ＝6的一个解，∴2×2－a ＝6，解得a ＝－2.4．已知式子12x a －1y 3与－3x －b y 2a ＋b 是同类项，则a ，b 的值为( A ) A.⎩⎨⎧a ＝2，b ＝－1 B.⎩⎨⎧a ＝2，b ＝1 C.⎩⎨⎧a ＝－2，b ＝－1 D.⎩⎨⎧a ＝－2，b ＝1 【解析】 由题意，得⎩⎨⎧a －1＝－b ，3＝2a ＋b ，解得⎩⎨⎧a ＝2，b ＝－1.5．某文具店一本练习本和一支水笔的价格合计为 3元，小妮在该店买了20本练习本和10支水笔，共花了36元．如果设练习本每本为x 元，水笔每支为y 元，那么下列方程组中，正确的是( B )A.⎩⎨⎧x －y ＝3，20x ＋10y ＝36B.⎩⎨⎧x ＋y ＝3，20x ＋10y ＝36 C.⎩⎨⎧y －x ＝3，20x ＋10y ＝36 D.⎩⎨⎧x ＋y ＝3，10x ＋20y ＝36 6．二元一次方程2x ＋y ＝11的非负的整数解有( C ) A ．2个B ．5个C ．6个D ．无数个【解析】 最小的非负的整数为0，当x ＝0时，0＋y ＝11，解得y ＝11； 当x ＝1时，2＋y ＝11，解得y ＝9； 当x ＝2时，4＋y ＝11，解得y ＝7； 当x ＝3时，6＋y ＝11，解得y ＝5； 当x ＝4时，8＋y ＝11，解得y ＝3； 当x ＝5时，10＋y ＝11，解得y ＝1；当x ＝6时，12＋y ＝11，解得y ＝－1(不合题意，舍去)，故当x ≥6时，不合题意， 故二元一次方程2x ＋y ＝11的非负的整数解有6个．7．如图，在3×3的方格中做填数游戏，要求每行、每列及对角线上三个方格中的数之和都相等，则表格中x ，y 的值为( A )A.⎩⎨⎧x ＝－1，y ＝1B.⎩⎨⎧x ＝1，y ＝－1C.⎩⎨⎧x ＝2，y ＝－1D.⎩⎨⎧x ＝－2，y ＝18．若方程组⎩⎨⎧a 1x ＋b 1y ＝c 1，a 2x ＋b 2y ＝c 2的解为⎩⎨⎧x ＝4，y ＝6，则方程组⎩⎨⎧4a 1x ＋3b 1y ＝5c 1，4a 2x ＋3b 2y ＝5c 2的解为( C )A.⎩⎨⎧x ＝4，y ＝6B.⎩⎨⎧x ＝5，y ＝6C.⎩⎨⎧x ＝5，y ＝10D.⎩⎨⎧x ＝10，y ＝15 【解析】 ∵⎩⎨⎧a 1x ＋b 1y ＝c 1，a 2x ＋b 2y ＝c 2的解为⎩⎨⎧x ＝4，y ＝6，∴⎩⎨⎧4a 1＋6b 1＝c 1，4a 2＋6b 2＝c 2，即⎩⎨⎧20a 1＋30b 1＝5c 1，20a 2＋30b 2＝5c 2.又∵⎩⎨⎧4a 1x ＋3b 1y ＝5c 1，4a 2x ＋3b 2y ＝5c 2，∴⎩⎨⎧4x ＝20，3y ＝30，解得⎩⎨⎧x ＝5，y ＝10.9．如图，两根铁棒直立于桶底水平的木桶中，在桶中加入水后，一根高出水面的长度是它的13，另一根高出水面的长度是它的15.两根铁棒长度之和为110 cm ，此时木桶中水的深度是( C )第9题图A ．60 cmB ．50 cmC ．40 cmD ．30 cm【解析】 设较长的铁棒长度为x (cm)，较短的铁棒长度为y (cm)．由题意，得⎩⎪⎨⎪⎧x ＋y ＝110，⎝⎛⎭⎪⎫1－13x ＝⎝ ⎛⎭⎪⎫1－15y ，解得⎩⎨⎧x ＝60，y ＝50， ∴⎝ ⎛⎭⎪⎫1－13x ＝40，即木桶中水的深度是40 cm. 10．下列关于x ，y 的方程组⎩⎨⎧x ＋3y ＝4－a ，x －5y ＝3a 的说法中，正确的是( C )①⎩⎨⎧x ＝5，y ＝－1是方程组的解；②不论a 取什么实数，x ＋y 的值始终不变； ③当a ＝－2时，x 与y 相等． A ．①②B ．①③C ．②③D ．①②③【解析】 把⎩⎨⎧x ＝5，y ＝－1代入x ＋3y ＝4－a ，得5－3＝4－a ，解得a ＝2.把⎩⎨⎧x ＝5，y ＝1，代入x －5y ＝3a ，得5＋5＝3a ，解得a ＝103，故①不正确；解方程⎩⎨⎧x ＋3y ＝4－a ，x －5y ＝3a ，得⎩⎪⎨⎪⎧x ＝a ＋52，y ＝1－a 2，∴x ＋y ＝3，故无论a 取何值，x ＋y 的值始终不变，故②正确； 把a ＝－2代入方程组，得⎩⎨⎧x ＋3y ＝6，x －5y ＝－6，两式相加，得2x －2y ＝0， ∴x ＝y ，故③正确．综上所述，正确的是②③.故选C. 二、填空题11．写出一个以⎩⎨⎧x ＝2，y ＝－3为解的二元一次方程组：__⎩⎨⎧x ＋y ＝－1，x －y ＝5(答案不唯一)__．12．已知方程组⎩⎨⎧2x ＋3y ＝12，3x ＋2y ＝18，则x ＋y ＝__6__.【解析】 ⎩⎨⎧2x ＋3y ＝12，①3x ＋2y ＝18.②①＋②，得5x ＋5y ＝30， ∴5(x ＋y )＝30， ∴x ＋y ＝6.13．如果方程组⎩⎨⎧x ＝3，ax ＋by ＝5的解与方程组⎩⎨⎧y ＝4，bx ＋ay ＝2的解相同，那么a ＝__－1__，b ＝__2__.14．对于有理数x ，y ，定义新运算“※”：x ※y ＝ax ＋by ＋1(a ，b 为常数)．若3※4＝9，4※7＝5，则7※11＝__13__.【解析】 ∵3※4＝9，4※7＝5，∴根据题中的新定义化简，可得⎩⎨⎧3a ＋4b ＝8，①4a ＋7b ＝4，②①＋②，得7a ＋11b ＝12， 则7※11＝7a ＋11b ＋1＝12＋1＝13.15．《孙子算经》中记载：“今有三人共车，二车空．二人共车，九人步．问人和车各几何？”其大意是：今有若干人乘车，若每3人乘一辆车，则最终剩余2辆空车；若每2人同乘一辆车，则最终剩下9人因无车可乘而步行，问有多少人，多少辆车？设有x 辆车，y 个人，则由题意可列方程组为__⎩⎨⎧3（x －2）＝y ，2x ＋9＝y__.16．已知关于x ，y 的方程组⎩⎨⎧3x ＋y ＝24，4x ＋ay ＝18有正整数解，则整数a 的值为__－1__.【解析】 ⎩⎨⎧3x ＋y ＝24，①4x ＋ay ＝18，②①×4－②×3，得(4－3a )y ＝42，∴y ＝424－3a .∵方程组的解为正整数，且a 为整数， ∴a ＝1或－1.当a ＝1时，y ＝42，代入①可得x ＝－6，不合题意，舍去； 当a ＝－1时，y ＝6，代入①可得x ＝6，符合题意． 故整数a 的值为－1. 三、解答题 17．解下列方程组： (1)⎩⎨⎧3x －4y ＝24，2x ＋3y ＝－1.解：⎩⎨⎧3x －4y ＝24，①2x ＋3y ＝－1，②①×3＋②×4，得17x ＝68，解得x ＝4. 把x ＝4代入①，得12－4y ＝24，解得y ＝－3. ∴原方程组的解为⎩⎨⎧x ＝4，y ＝－3. (2)⎩⎪⎨⎪⎧2（x －1）＝3－y ，y －12－x －13＝－1.解：方程组整理，得⎩⎨⎧2x ＋y ＝5，①2x －3y ＝5，②①－②，得4y ＝0，解得y ＝0. 把y ＝0代入①，得2x ＝5， 解得x ＝52.∴原方程组的解为⎩⎪⎨⎪⎧x ＝52，y ＝0.18．若等式(2x －4)2＋⎪⎪⎪⎪⎪⎪y －12＝0中的x ，y 是方程组⎩⎨⎧mx ＋4y ＝8，5x ＋16y ＝n的解，求m ，n 的值．解：∵(2x －4)2＋⎪⎪⎪⎪⎪⎪y －12＝0，∴2x －4＝0且y －12＝0， ∴x ＝2，y ＝12.把x ＝2，y ＝12代入⎩⎨⎧mx ＋4y ＝8，5x ＋16y ＝n ，得⎩⎨⎧2m ＋2＝8，10＋8＝n ，解得⎩⎨⎧m ＝3，n ＝18.19．解方程组⎩⎨⎧ax ＋by ＝2，cx ＋5y ＝8时，一马虎的学生把c 写错而得⎩⎨⎧x ＝－3，y ＝1，而正确的解为⎩⎨⎧x ＝3，y ＝－2.求a ＋b －c 的值．解：把⎩⎨⎧x ＝－3，y ＝1和⎩⎨⎧x ＝3，y ＝－2分别代入ax ＋by ＝2，得⎩⎨⎧－3a ＋b ＝2，①3a －2b ＝2.②①＋②，得－b ＝4，解得b ＝－4.把b ＝－4代入①，得－3a －4＝2，解得a ＝－2. 把⎩⎨⎧x ＝3，y ＝－2代入cx ＋5y ＝8，得3c －10＝8，解得c ＝6， ∴a ＋b －c ＝－2－4－6＝－12.20．如图，在大长方形ABCD 中，放入六个相同的小长方形，已知BC ＝11，DE ＝7. (1)设每个小长方形的长为x ，宽为y ，求x ，y 的值． (2)求图中阴影部分的面积．第20题图解：(1)由题意，得⎩⎨⎧x ＋y －2y ＝7，x ＋3y ＝11，解得⎩⎨⎧x ＝8，y ＝1.(2)S 阴影＝11×(8＋1)－6×1×8＝51. 答：图中阴影部分的面积为51. 21．阅读理解：善于思考的小聪在解方程组⎩⎨⎧2x －3y ＝3，①2x －5y ＝5②时，发现①和②之间存在一定关系，他的解法如下：解：把②变形为2x －3y －2y ＝5.③ 把①代入③，得3－2y ＝5， 解得y ＝－1.把y ＝－1代入①，得x ＝0，∴原方程组的解为⎩⎨⎧x ＝0，y ＝－1.小聪的这种解法叫“整体换元法”．请用“整体换元法”解下列方程组： (1)⎩⎨⎧2x ＋5y ＝3，3x ＋5y ＝2.解：解方程组⎩⎨⎧2x ＋5y ＝3，①3x ＋5y ＝2.②把②变形为x ＋2x ＋5y ＝2.③把①代入③，得x ＋3＝2，解得x ＝－1. 把x ＝－1代入①，得y ＝1， ∴原方程组的解为⎩⎨⎧x ＝－1，y ＝1.(2)⎩⎨⎧3x －2y ＝5，9x －4y ＝19.解：解方程组⎩⎨⎧3x －2y ＝5，①9x －4y ＝19.②把②变形为3(3x －2y )＋2y ＝19.③ 把①代入③，得3×5＋2y ＝19， 解得y ＝2.把y ＝2代入①，得x ＝3， ∴原方程组的解为⎩⎨⎧x ＝3，y ＝2.22．在手工制作课上，老师组织班级同学用硬纸制作圆柱形茶叶筒．全班共有学生50人，其中男生x 人，女生y 人，男生人数比女生人数少 2人．已知每名同学每小时剪筒身40个或剪筒底120个．(1)求这个班男生、女生各有多少人？(2)原计划男生负责剪筒底，女生负责剪筒身，若要求一个筒身配两个筒底，请说明每小时剪出的筒身与筒底能否配套？如果不配套，请说明如何调配人员，才能使每小时剪出的筒身与筒底刚好配套？解：(1)由题意，得⎩⎨⎧x ＋y ＝50，x ＝y －2，解得⎩⎨⎧x ＝24，y ＝26.答：这个班有男生有24人，女生有26人．(2)男生每小时剪筒底的数量为24×120＝2 880(个)， 女生每小时剪筒身的数量为26×40＝1 040(个)． ∵一个筒身配两个筒底，2 880∶1 040≠2∶1，∴原计划男生负责剪筒底，女生负责剪筒身，每小时剪出的筒身与筒底不能配套． 设男生应向女生支援a 人，由题意，得120(24－a )＝(26＋a )×40×2， 解得a ＝4.答：原计划男生负责剪筒底，女生负责剪筒身，每小时剪出的筒身与筒底不能配套．男生应向女生支援4人，才能使每小时剪出的筒身与筒底配套．23．小明为练习书法，去商店购买书法用品，购买发票上有部分信息不慎被墨汁污染导致无法看清，如下表所示．请解答下列问题：(1)小明购买墨水和毛笔各多少？(2)若小明再次购买墨水和字帖两种用品共花费150元，则有哪几种不同的购买方案？ 解：(1)设小明购买墨水x 瓶，毛笔y 支． 由题意，得⎩⎨⎧x ＋y ＋2＝5，15x ＋40y ＋90＝185，解得⎩⎨⎧x ＝1，y ＝2. 答：小明购买墨水1瓶，毛笔2支． (2)字帖的单价为90÷2＝45(元)． 设再次购买墨水m 瓶，字帖n 本， 由题意，得15m ＋45n ＝150，∴m ＝10－3n . 又∵m ，n 均为正整数， ∴⎩⎨⎧m ＝1，n ＝3或⎩⎨⎧m ＝4，n ＝2或⎩⎨⎧m ＝7，n ＝1， ∴共有3种购买方案：方案一：购买1瓶墨水，3本字帖；方案二：购买4瓶墨水，2本字帖；方案三：购买7瓶墨水，1本字帖．。

人教版七下英语 Unit 2 What time do you go to school 单元检测一、单项选择（共15小题；共30分）1. Bill gets a _____ in a middle school and he has much _____ to do every day.A.job; jobB.work; workC.job; work2. Your bedroom is so dirty, Tony. You should _____ it right now.A.washB.takeC.cleanD.bring3. Don't drive your car so _____. It's dangerous. Please drive slowly.A.quicklyB.slowlyC.sadlyD.happily4. Gary is the best singer in my class. No one else _____ so well.A.singsB.sangC.will singD.is singing5. —Do you like rock music or light music?—_____. I like pop music.A.BothB.NoneC.NeitherD.Either6. —Help your brother _____, Mary.—OK. But where are his sweater and trousers?A.go to schoolB.play chessC.get dressedD.take the subway7. —How do you like the two pairs of shoes?—They don't fit me. They are _____ too big _____ too small.A.not only…but also…B.neither…nor…C.either…or…8. Swimming is, of course, interesting. But _____ we plan to go swimming, being safe must come first.A.thoughB.whenC.unless9. We should have _____ breakfast every day to keep healthy.A.aB.anC./D.the10. More villagers will move to new houses _____ 2021.A.inB.onC.atD.for11. These oranges look nice, but _____ very sour.A.feelB.tasteC.soundD.look12. The show was so _____ that I couldn't stop laughing.A.sadB.terribleC.funnyD.serious13. —I don't like fruit. I _____ eat it.—But it's good for your health!You need to eat it every day.A.alwaysB.neverC.often14. —These days, more and more kids have problems with their sight.—They should do eye _____ and take _____ every day.A.exercise; exercisesB.exercises; exerciseC.exercises; exercisesD.exercise; exercise15. —The train to Kunming is leaving at eleven fifteen at night.—Wow, _____! That's so late!A.a quarter past elevenB.a quarter to elevenC.half past elevenD.half past twelve二、完形填空（共1小题；共20分）Rose is a schoolgirl. She is very busy every day. Let me tell you _____16_____ about her schoolday. Her school is far _____17_____ her home. So she gets up very _____18_____ in the morning. She usually goes to school by _____19_____. It _____20_____ her about half an hour to get there every day. She has_____21_____ time to have breakfast at home. She often has some bread for breakfast on her way to school. She doesn't want to _____22_____ late for morning exercises. She has lunch at school. Usually she_____23_____ soccer with her friends after school. Then she takes the bus and goes _____24_____ at about 6:00. Then she starts to do her homework. After that she reads English and _____25_____ music for half an hour. At 9:00 she takes a shower and goes to bed.16. A.something B.anything C.everything D.nothing17. A.at B.to C.from D.in18. te B.early C.quickly D.fast19. A.her bike B.bus C.foot D.bikes20. A.needs B.spends C.is D.takes21. A.not B.never C.no D.some22. A.be B.go e D./23. A.brings B.takes C.finds D.plays24. A.to school B.to work C.home D.to home25. A.listens to B.hears C.listens D.watches三、阅读理解-阅读判断（共1小题；共10分）"Good Time" is a program (节目) on ABC Radio. Jim Green is an announcer (广播员). Most of the girls and boys like the program. They also like Jim Green. Some of them often make telephone calls to him and thank him for his work. There are lots of letters (信) to him every day, too.Jim gets up at 6:00 every morning. He has bread and a glass of milk for breakfast. He leaves home at 6:30 and gets to his office at 7:15. The program begins at 7:30. He plays the new records (唱片) of the pop songs and other good music for his listeners. At 8:00, it is time for news (新闻). Jim finishes his work at 10:30. He goes home in his car. He reads newspapers and listens to music in the evening. His job is very interesting and helpful.26. ( )Jim Green is an actor.27. ( )Jim gets up at 6:00 every morning.28. ( )He has bread and a glass of milk for breakfast.29. ( )The program begins at 7:15.30. ( )He goes home by car.四、阅读理解-阅读选择（共4小题；共40分）Dong Yi lives in Beijing. Read and learn about her day.A.Her mother.B.Her uncle.C.Her father.D.Her sister.32. What does Dong Yi do at 10:00 a.m.?A.Play chess.B.Do her homework.C.Do morning exercises.D.Have classes.33. When does Dong Yi have dinner?A.At 5:10 p.m.B.At 7:00 p.m.C.At 7:10 p.m.D.At 10:00 p.m.34. Which of the following is NOT TRUE according to the passage?A.Dong Yi starts to have classes at 8:00 a.m.B.They do morning exercises in the playground.C.Dong Yi has lunch at home with her parents.D.Dong Yi can play chess.35. The passage is about _____.A.Dong Yi's schooldayB.Dong Yi's familyC.Dong Yi's hobbiesD.Dong Yi's friendsHi! I'm Anya and I'm 11 years old. I go to Saint Martin School. I'm in Class 5.On weekdays, I usually get up at 7 o'clock. I have a shower to wake (醒来) me up. Then I get dressed. That doesn't take much time because I must wear my school uniform. I have breakfast at 7:30 a.m. with my family. I usually drink a glass of milk and eat some bread for breakfast. After breakfast, my dad drives me to school. I have class from 8:15 a.m. to 3:30 p.m. and I always have lunch in the school canteen.After school, I go home by bus. I arrive home at 4:30 p.m. Then I do my homework. At 5 o'clock I have some snacks (零食). Then I watch TV. My parents arrive home at 7 o'clock and we have dinner at 8 o'clock. After dinner I read books for an hour. I usually go to bed at 10:00 p.m.36. What times does Anya usually get up on weekdays?A.At 6:00 a.m.B.At 6:30 a.m.C.At 7:00 a.m.D.At 7:30 a.m.37. Anya goes to school _____.A.by carB.by bikeC.by busD.on foot38. What does the underlined word "canteen" mean in Chinese?A.教室B.实验室C.办公室D.餐厅39. Anya arrives home _____ earlier (早于) than her parents.A.2 hoursB.2.5 hoursC.3 hoursD.3.5 hours40. Which of the following is NOT TRUE according to the passage?A.We can know about Anya's age.B.Anya is from Saint Martin School.C.Anya never drinks milk for breakfast.D.Anya has dinner at 8 o'clock.Sarah is a hairdresser (理发师). Her husband Jack is a musician. They have a son and a daughter. They're Peter and Mary.Sarah usually gets up at 7:00 a.m. She takes a shower and then makes breakfast. At 8:00 a.m., she has breakfast. At 8:30 a.m., she goes to work.Sarah gets to her workplace at 9:00 a.m. She's never late. She loves her job because she meets new people every day and she gets big tips (小费). But she needs to stand all day. She doesn't like that. At 6:30 p.m., Sarah leaves work.When Sarah gets home, she plays chess with Peter and Mary. Jack makes dinner. She and her family usually have dinner at 7:30 p.m. After dinner, she washes clothes.On the weekend, Sarah's day is very different because she doesn't work. She likes going shopping with her friends. Sometimes she takes a walk with her parents.41. Jack isn't _____.A.a hairdresserB.Sarah's husbandC.Mary's father42. What time does Sarah have breakfast?A.At 7:00 a.m.B.At 7:30 a.m.C.At 8:00 a.m.43. What does the underlined word "that" refer to?A.Getting tips.B.Standing all day.C.Meeting new people.44. Who makes dinner?A.Jack.B.Peter.C.Sarah.45. What does Sarah do after dinner?A.She plays chess.B.She takes a walk.C.She washes clothes.A: Hello, Tom. How are you?B: Very well, thank you. And you?A: I'm fine too. _____46_____B: My school is big and nice. I love it very much.A: _____47_____B: It starts at 8:00 in the morning. _____48_____A: In my school, our lessons also begin at 8:00 a.m. _____49_____B: My favourite lessons are math and Chinese.A: I love math too. But I'm not good at Chinese.B: _____50_____ I will help you with Chinese.46. A.Don't worry.B.What about you?C.When does your schoolday start?D.What is your school like?E.What are your favourite lessons?47. A.Don't worry.B.What about you?C.When does your schoolday start?D.What is your school like?E.What are your favourite lessons?48. A.Don't worry.B.What about you?C.When does your schoolday start?D.What is your school like?E.What are your favourite lessons?49. A.Don't worry.B.What about you?C.When does your schoolday start?D.What is your school like?E.What are your favourite lessons?50. A.Don't worry.B.What about you?C.When does your schoolday start?D.What is your school like?E.What are your favourite lessons?五、书面表达（共1小题；共15分）51. 根据下表介绍体育老师 Mr. Dean 星期天的主要活动。