当前位置:文档之家› 2017-2018学年上海交大附中高一化学练习31-化学反应热效应

2017-2018学年上海交大附中高一化学练习31-化学反应热效应

2017-2018学年上海交大附中高一化学练习31-化学反应热效应
2017-2018学年上海交大附中高一化学练习31-化学反应热效应

高一化学练习31—化学反应的热效应

一、选择题(每一题有1个正确答案)

1.热化学方程式中物质的化学计量数表示的是()

A. 质量

B. 体积

C. 分子数

D. 物质的量

2.下列变化过程,属于放热反应的是()

A. 水蒸气凝结成液态水

B. 氢气还原氧化铜

C. H2与Cl2混合光照爆炸

D. 电解饱和食盐水制氯气

3.已知:H2(g)+1/2O2(g)→H2O(g)+241kJ;H2(g)+S(g)→H2S(g)+20.1kJ,由此推断()

A. 硫化氢的热稳定性大

B. 水的热稳定性大

C. 两者热稳定性相当

D. 无法确定热稳定性

4.下列说法中正确的是()

A. 放热反应在常温下都能发生

B. 放热反应一定比吸热反应剧烈

C. 若某可逆反应的正反应放热,则逆反应一定是吸热

D. 吸热反应不持续加热无法进行

5.下列各图中,表示放热反应的图是()

6.如右图分析,下列答案正确的是()

A. A→B+C,B+C→A两个反应吸收或放出的热量不等

B. A→B+C是放热反应

C. B和C相对于A而言较为稳定

D. A→B+C是吸热反应,则B+C→A必然是放热反应

7.根据热化学方程式:S(s)+O2(g)→SO2(g)+Q,下列说法正确的是()

A. 1molSO2(g)的能量总和大于1molS(s)和1molO2(g)的能量总和

B. 1molSO2(g)的能量总和小于1molS(s)和1molO2(g)的能量总和

C. S(g)+O2(g)→SO2(g)+Q1;Q1>Q2

D. S(g)+O2(g)→SO2(g)+Q1;Q1

8.已知①H2(g)+I2(?)→2HI(g)+Q1;②H2(g)+I2(?)→2HI(g)-Q2。这两个反应中碘可能为固态或气态,且Q1、Q2均大于0。关于这两个反应说法正确的是()

A. 反应①中I2为固态,②中碘为气态

B. 反应①中I2为气态,中碘为固态

C. 反应①的产物比反应②的产物稳定

D. 1mol碘升华需要吸收能量为Q1-Q2

9. 同温同压下,下列各热化学反应方程式中热量数值最小的是(均为放热反应)()

A. 2A(l)+B(l)→2C(g)+Q1

B. 2A(g)+B(g)→2C(g)+Q2

C. 2A(g)+B(g)→2C(l)+Q3

D. A(l)+B(l)→2C(l)+Q4

10. 石墨在一定条件下可以转化为金刚石并需要吸收能量。已知12g石墨或金刚石完全燃烧时放出的热量依次为Q1和Q2,下列说法错误的是()

A. Q1

B. 石墨不如金刚石稳定

C. 质量相等的石墨与金刚石,石墨具有能量比金刚石低

D. 质量相等的石墨与金刚石完全燃烧,生成的二氧化碳一样多

11. 已知氯气、溴蒸气分别跟氢气反应的热化学方程式如下(Q1、Q2均为正值):

H2(g)+Cl2(g)→2HCl(g)+Q1H2(g)+Br2(g)→2HBr(g)+Q2

有关上述反应的叙述正确的是()

A. Q1

B. 生成物总能量均高于反应物总能量

C. 生成1 mol HCl气体时放出Q1能量

D. 1 mol HBr(g)具有的能量小于1 mol HBr(l)具有的能量

12. 将1g氢气和4g氧气混合点燃,放出71.45kJ热量,同样条件下1 mol氢气在氧气中完全燃烧放出的热量是()

A. 71.45kJ

B. 142.9kJ

C. 571.6kJ

D. 285.8kJ

13. 使18g焦炭发生不完全燃烧,所得气体中CO占1/3体积,CO2占2/3体积。已知:

C(固)+1/2O2(气)→CO(气)+Q1kJ C(气)+1/2O2(气)→CO2(气)+Q2kJ 完全燃烧时相比较,损失的热量是()

A. 1/3Q1kJ

B. 1/3Q2kJ

C. 1/3(Q1+Q2)kJ

D. 1/2Q2kJ

二、填空题

14. 请写出热化学方程式2H2(g)+O2(g)→2H2O(l)+571.6kJ的意义:

15. 燃料充分利用,通常需要考虑两点:、;燃料燃烧时,若空气不足,则,若空气过多,则;为了使固体、液体燃料与充分接触,通常采取的措施是、,而高效、清洁地利用煤的措施是、。

16. 已知1mol甲烷完全燃烧生成CO2和液态水可放出热量890kJ。现有CH4和CO的混合气体共0.75mol,完全燃烧后生成18g液态水并放出515kJ的热量。写出甲烷和CO燃烧的热化学方程式。

参考答案

一、选择题

二、填空题

14. 2molH2和1molO2完全反应生成2mol液态水并放出571.6kJ热量

15.燃料的充分燃烧热能充分利用无法充分燃烧可以充分燃烧固体粉碎液体以雾状喷出气化液化

16.1/2CH4(g)+O2(g)→1/2CO2(g)+H2O(l)+445kJ

1/4CO(g)+1/8O2(g)→1/4CO2(g)+70kJ

高中化学所有化学反应方程式

高中化学所有化学反应方程式 一、非金属单质(F2,Cl2,O2,S,N2,P,C,Si,H) 1、氧化性: F2+H2===2HF (阴暗处爆炸) F2+Xe(过量)==XeF2 2F2(过量)+Xe==XeF4(XeF4是强氧化剂,能将Mn2+氧化为MnO4–) nF2+2M===2MFn(M表示大部分金属) 2F2+2H2O===4HF+O2 (水是还原剂) 2F2+2NaOH===2NaF+OF2+H2O F2+2NaCl===2NaF+Cl2 F2+2NaBr===2NaF+Br2 F2+2NaI===2NaF+I2 7F2(过量)+I2===2IF7 F2+Cl2(等体积)===2ClF (ClF属于类卤素:ClF+H2O==HF+HClO ) 3F2(过量)+Cl2===2ClF3 (ClF3+3H2O==3HF+HClO3 ) Cl2+H22HCl (将H2在Cl2点燃;混合点燃、加热、光照发生爆炸) 3Cl2+2P2PCl3Cl2+PCl3PCl5Cl2+2Na2NaCl 3Cl2+2Fe2FeCl3Cl2+Cu CuCl2 Cl2+2FeCl2===2FeCl3(在水溶液中:Cl2+2Fe2+===2Fe3++3Cl-) Cl2+2NaBr===2NaCl+Br2Cl2+2Br-=2Cl-+Br2 Cl2+2KI===2KCl+I2Cl2+2I-=2Cl-+I2 3Cl2(过量)+2KI+3H2O===6H Cl+KIO3 3Cl2+I–+3H2O=6H++6Cl–+IO3– 5Cl2+I2+6H2O===2HIO3+10HCl 5Cl2+I2+6H2O=10Cl–+IO3–+12H+ Cl2+Na2S===2NaCl+S↓Cl2+S2–=2Cl–+S↓ Cl2+H2S===2HCl+S↓(水溶液中:Cl2+H2S=2H++2Cl–+S↓ Cl2+SO2+2H2O===H2SO4+2HCl Cl2+SO2+2H2O=4H++SO42–+2Cl– Cl2+H2O2===2HCl+O2Cl2+H2O2=2H++Cl–+O2 2O2+3Fe Fe3O4O2+K===KO2 S+H2H2S 2S+C CS2S+Zn ZnS S+Fe FeS (既能由单质制取,又能由离子制取) S+2Cu Cu2S (只能由单质制取,不能由离子制取) 3S+2Al Al2S3 (只能由单质制取,不能由离子制取)

人教版高中化学知识点详细总结(很全面)

高中化学重要知识点详细总结一、俗名 无机部分: 纯碱、苏打、天然碱、口碱:Na2CO3小苏打:NaHCO3大苏打:Na2S2O3石膏(生石膏):CaSO4.2H2O 熟石膏:2CaSO4·.H2O 莹石:CaF2重晶石:BaSO4(无毒)碳铵:NH4HCO3 石灰石、大理石:CaCO3生石灰:CaO 食盐:NaCl 熟石灰、消石灰:Ca(OH)2芒硝:Na2SO4·7H2O (缓泻剂) 烧碱、火碱、苛性钠:NaOH 绿矾:FaSO4·7H2O 干冰:CO2明矾:KAl (SO4)2·12H2O 漂白粉:Ca (ClO)2、CaCl2(混和物)泻盐:MgSO4·7H2O 胆矾、蓝矾:CuSO4·5H2O 双氧水:H2O2皓矾:ZnSO4·7H2O 硅石、石英:SiO2刚玉:Al2O3 水玻璃、泡花碱、矿物胶:Na2SiO3铁红、铁矿:Fe2O3磁铁矿:Fe3O4黄铁矿、硫铁矿:FeS2铜绿、孔雀石:Cu2 (OH)2CO3菱铁矿:FeCO3赤铜矿:Cu2O 波尔多液:Ca (OH)2和CuSO4石硫合剂:Ca (OH)2和S 玻璃的主要成分:Na2SiO3、CaSiO3、SiO2过磷酸钙(主要成分):Ca (H2PO4)2和CaSO4重过磷酸钙(主要成分):Ca (H2PO4)2天然气、沼气、坑气(主要成分):CH4水煤气:CO和H2硫酸亚铁铵(淡蓝绿色):Fe (NH4)2 (SO4)2溶于水后呈淡绿色 光化学烟雾:NO2在光照下产生的一种有毒气体王水:浓HNO3与浓HCl按体积比1:3混合而成。 铝热剂:Al + Fe2O3或其它氧化物。尿素:CO(NH2) 2 有机部分: 氯仿:CHCl3电石:CaC2电石气:C2H2 (乙炔) TNT:三硝基甲苯酒精、乙醇:C2H5OH 氟氯烃:是良好的制冷剂,有毒,但破坏O3层。醋酸:冰醋酸、食醋CH3COOH 裂解气成分(石油裂化):烯烃、烷烃、炔烃、H2S、CO2、CO等。甘油、丙三醇:C3H8O3 焦炉气成分(煤干馏):H2、CH4、乙烯、CO等。石炭酸:苯酚蚁醛:甲醛HCHO 福尔马林:35%—40%的甲醛水溶液蚁酸:甲酸HCOOH 葡萄糖:C6H12O6果糖:C6H12O6蔗糖:C12H22O11麦芽糖:C12H22O11淀粉:(C6H10O5)n 硬脂酸:C17H35COOH 油酸:C17H33COOH 软脂酸:C15H31COOH 草酸:乙二酸HOOC—COOH 使蓝墨水褪色,强酸性,受热分解成CO2和水,使KMnO4酸性溶液褪色。二、颜色 铁:铁粉是黑色的;一整块的固体铁是银白色的。Fe2+——浅绿色Fe3O4——黑色晶体 Fe(OH)2——白色沉淀Fe3+——黄色Fe (OH)3——红褐色沉淀Fe (SCN)3——血红色溶液FeO——黑色的粉末Fe (NH4)2(SO4)2——淡蓝绿色Fe2O3——红棕色粉末FeS——黑色固体 铜:单质是紫红色Cu2+——蓝色CuO——黑色Cu2O——红色CuSO4(无水)—白色CuSO4·5H2O——蓝色Cu2(OH)2CO3—绿色Cu(OH)2——蓝色[Cu(NH3)4]SO4——深蓝色溶液 BaSO4、BaCO3、Ag2CO3、CaCO3、AgCl 、Mg (OH)2、三溴苯酚均是白色沉淀 Al(OH)3白色絮状沉淀H4SiO4(原硅酸)白色胶状沉淀 Cl2、氯水——黄绿色F2——淡黄绿色气体Br2——深红棕色液体I2——紫黑色固体 HF、HCl、HBr、HI均为无色气体,在空气中均形成白雾 CCl4——无色的液体,密度大于水,与水不互溶KMnO4--——紫色MnO4-——紫色 Na2O2—淡黄色固体Ag3PO4—黄色沉淀S—黄色固体AgBr—浅黄色沉淀 AgI—黄色沉淀O3—淡蓝色气体SO2—无色,有剌激性气味、有毒的气体 SO3—无色固体(沸点44.8 0C)品红溶液——红色氢氟酸:HF——腐蚀玻璃 N2O4、NO——无色气体NO2——红棕色气体NH3——无色、有剌激性气味气体 三、现象: 1、铝片与盐酸反应是放热的,Ba(OH)2与NH4Cl反应是吸热的; 2、Na与H2O(放有酚酞)反应,熔化、浮于水面、转动、有气体放出;(熔、浮、游、嘶、红) 3、焰色反应:Na 黄色、K紫色(透过蓝色的钴玻璃)、Cu 绿色、Ca砖红、Na+(黄色)、K+(紫色)。 4、Cu丝在Cl2中燃烧产生棕色的烟; 5、H2在Cl2中燃烧是苍白色的火焰; 6、Na在Cl2中燃烧产生大量的白烟; 7、P在Cl2中燃烧产生大量的白色烟雾; 8、SO2通入品红溶液先褪色,加热后恢复原色; 9、NH3与HCl相遇产生大量的白烟;10、铝箔在氧气中激烈燃烧产生刺眼的白光; 11、镁条在空气中燃烧产生刺眼白光,在CO2中燃烧

英语高考单项选择[1]

英语高考单项选择 真题部分-2004年浙江省 21. The winner of 1990 was extremely bad. _____ most people say it was the worst winter of their lives. A. At last B.In fact C.In a word D.As a result 22. The Wilsons live in _____ A-shaped house near the coast. It is _____ 17th century cottage. A. the , / B. an, the C. /, the D. an, a 23. The discussion ____ alive when an interesting topic was brought in. A. was coming B. had come C. has come D. came 24. ______ students are required to take part in the boat race. A. Ten strong young Chinese B. Ten Chinese strong young C. Chinese ten young strong D. Young strong ten Chinese 25. We wanted to get home before dark, but it didn’t quite _____ as planned. A. make out B. turn out C. go on D. come up 26. I ____ pay Tracy a visit, but I am not sure whether I will have time this Sunday. A. should B. might C. would D. could 27. ---- What do you want to do next? We have half an hour until the basketball game. ----- _____. Whatever you want to do is fine with me. A. It just depends B. It’s up to you C. All right D. Glad to hear that 28. --- Brad was Jane’s brother! ---_______ he reminded me so much of Jane! A. No doubt B. Above all C. No wonder D. Of course 29. Linda worked for the Minnesota Manufacturing and Mining Company, ____ as 3M. A. knowing B. known C. being known D. to be known 30. If you are feeling so tired, perhaps a little sleep would _____. A. act B. help C. serve D. last 31. _____ modeling business is by no means easy to get into, the good model will always be in demand. A. While B. Since C. As D. If 32. I’ve never seen anyone run so fast---- ______ David go. A. just watch B. just to watch C. just watching D. just having watched 33. We had three sets of garden tools and we seemed to have no use for ______. A. none B. either C. any D. each 34. Because the shop _____, all the T-shirts are sold at half price. A. has closed down B. closed down C. is closing down D. had closed down 35. A nyway, that evening, ____ I’ll tell you more about later, I ended up staying at Rachel’s place. A. when B. where C. what D. Which

上海市上海师范大学附属中学2021届高三上学期期中英语试题

上师大附中2020 学年度第一学期高三期中考试 英语 考生注意: 1. 考试时间120 分钟,试卷满分140 分。 2. 本考试设试卷和答题纸两部分。所有答題必须涂(选择题)或写(非选择题)在答题纸上,做在试卷上一律不得分。 3. 答題前,务必在答題纸上填写准考证号和姓名。 I. Listening Comprehension Section A Directions: In Section A, you will hear ten short conversations between two speakers. At the end of each conversation, a question will be asked about what was said. The conversations and the questions will be spoken only once. After you hear a conversation and the question about it, read the four possible answers on your paper, and decide which one is the best answer to the question you have heard. 1. A. 7:00 a.m..B. 7:30 a.m..C. 8:00 a.m..D. 8:30 a.m.. 2. A. Parent and child. B. Husband and wife. C. Teacher and student. D. Shop assistant and customer. 3. A. See a doctor about her strained shoulder. B. Use a ladder to help her reach the tea. C. Replace the cupboard with a new one. D. Place the tea on a lower shelf next time. 4. A. At Mary Johnson’s. B. In an exhibition hall. C. At a painter’s studio. D. Outside an a rt gallery. 5. A. He helped Doris build up the furniture. B. Doris helped him arrange the furniture. C. Doris fixed up some of the bookshelves. D. He was good at assembling bookshelves. 6. A. Blue. B. Red. C. Black. D. Green 7. A. He doesn’t get on with the others. B. He has been taken for a fool. C. He doesn’t feel at ease in the firm. D. He has found a better position. 8. A. They’d better not go riding. B. It is not good riding in the rain. C. They can go riding half an hour later. D. Riding a bike is a great idea. 9. A. The man has to get rid of the used furniture. B. The man’s apartment is ready for rent.

高中化学选修化学反应原理知识点总结

化学选修化学反应原理复习 第一章 一、焓变反应热 1.反应热:一定条件下,一定物质的量的反应物之间完全反应所放出或吸收的热量 2.焓变(ΔH)的意义:在恒压条件下进行的化学反应的热效应(1).符号:△H(2).单位:kJ/mol 3.产生原因:化学键断裂——吸热化学键形成——放热 放出热量的化学反应。(放热>吸热) △H 为“-”或△H <0 吸收热量的化学反应。(吸热>放热)△H 为“+”或△H >0 ☆常见的放热反应:①所有的燃烧反应②酸碱中和反应 ③大多数的化合反应④金属与酸的反应 ⑤生石灰和水反应⑥浓硫酸稀释、氢氧化钠固体溶解等 ☆常见的吸热反应:①晶体Ba(OH)2·8H2O与NH4Cl ②大多数的分解反应 ③以H2、CO、C为还原剂的氧化还原反应④铵盐溶解等 二、热化学方程式 书写化学方程式注意要点: ①热化学方程式必须标出能量变化。 ②热化学方程式中必须标明反应物和生成物的聚集状态(g,l,s分别表示固态,液态,气态,水溶液中溶质用aq表示) ③热化学反应方程式要指明反应时的温度和压强。 ④热化学方程式中的化学计量数可以是整数,也可以是分数 ⑤各物质系数加倍,△H加倍;反应逆向进行,△H改变符号,数值不变 三、燃烧热 1.概念:25 ℃,101 kPa时,1 mol纯物质完全燃烧生成稳定的化合物时所放出的热量。燃烧热的单位用kJ/mol表示。 ※注意以下几点: ①研究条件:101 kPa ②反应程度:完全燃烧,产物是稳定的氧化物。 ③燃烧物的物质的量:1 mol ④研究内容:放出的热量。(ΔH<0,单位kJ/mol) 四、中和热 1.概念:在稀溶液中,酸跟碱发生中和反应而生成1mol H2O,这时的反应热叫中和热。 2.强酸与强碱的中和反应其实质是H+和OH-反应,其热化学方程式为: H+(aq) +OH-(aq) =H2O(l) ΔH=-mol 3.弱酸或弱碱电离要吸收热量,所以它们参加中和反应时的中和热小于mol。 4.中和热的测定实验 五、盖斯定律

2019-2020学年 上海市上师大附中高一上英语周练英语试卷

2019-2020学年第一学期上大附中高一英语 9月周日小测 Ⅰ. Grammar Directions: After reading the passage below, fill in the blanks to make the passages coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank. Last August Susan and forty-two other students got wet and dirty while removing six tons of garbage __21__ the rive running across their city. They cleaned up the rive as part of a week-long environmental camp. Like one in three American rives, this river is so polluted __22__ it’s not safe for swimming or fishing. Still, Susan, who __23__ (complete) her third summer camp so far on the river cleanup, sees a change in this river. “Since we started three years ago, the river is getting a lot __24__ (clean).” she says. Environmental scientists praise the teenagers for removing garbage __25__ can harm wild life. Water birds, for example, __26__ die of plastic bottle rings and get cut by tiny metals. Three years ago, __27__ the cleanup started, garbage was everywhere. But this year the teenagers can row their boats fast. By the end of this year’s six-hour cleanup, they __28__ (remove) enough garbage to fill more than two large trucks. “__29__ (see) all that garbage in the rive makes people begin to care about environmental issues,” Susan says. She hopes that when others read that, she and her peers care enough __30__ (clean) it up, maybe they would think twice before they throw garbage into the river. Ⅱ. Vocabulary Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need. 1 / 10

高一化学必修一化学方程式大全

高一化学必修一化学方程式大全1、钠在空气中燃烧(黄色的火焰) 2Na + O2==【点燃】Na2O2 钠块在空气中变暗 4Na+O2=2Na2O Na2O在空气中加热(变黄) 2Na2O+O2=2Na2O2 2、钠与水反应(浮、熔、游、响、红) 2Na + 2H2O = 2NaOH + H2↑ 2Na + 2H2O = 2Na+ + 2OH- + H2↑ 3、过氧化钠与水的反应(放热反应、Na2O2是强氧化剂,用于漂白) 2Na2O2 + 2H2O = 4NaOH + O2 ↑ 2Na2O2 + 2H2O = 4Na+ +4OH -+O2↑ 碱性氧化物Na2O与水的反应 Na2O+H2O=2NaOH 4、过氧化钠可用在呼吸面具和潜水艇中作为氧气来源,原因是: 2Na2O2 + 2CO2 = 2Na2CO3 + O2 5、苏打(纯碱)与盐酸反应 ①盐酸中滴加纯碱溶液 Na2CO3 + 2HCl = 2NaCl + H2O+CO2↑ CO32- + 2H+= H2O + CO2↑ ②纯碱溶液中滴加盐酸,至过量 Na2CO3 + HCl =NaHCO3 + NaCl CO32- + H+ = HCO3-

NaHCO3+HCl=NaCl+H2O+CO2↑ HCO3-+H+ = H2O +CO2↑ 6、小苏打受热分解 2NaHCO3==【加热】Na2CO3 + H2O +CO2 ↑ 7、固体氢氧化钠和碳酸氢钠混合物在密闭容器中加热 NaHCO3 + NaOH==【加热】Na2CO3 + H2O HCO3-+ OH - = H2O + CO32- (若是溶液中反应有离子方程式) 8、金属锂在空气中燃烧 4Li + O2==【加热】2Li2O 9、氯气的性质 铜丝在氯气中剧烈燃烧(棕色烟) Cu + Cl2==【点燃】CuCl2 之后加水,可由绿色溶液(浓)得到蓝色溶液(稀) Cl2 +2FeCl2 =2FeCl3 2Cl2+2NaBr=2NaCl+Br2 Cl2 +2NaI =2NaCl+I2 Cl2+SO2 +2H2O=H2SO4 +2HCl 2Na + Cl2 ==【点燃】2NaCl 10、铁在氯气中剧烈燃烧 2Fe + 3Cl2==【点燃】3FeCl3 11、氢气在氯气中燃烧(苍白色火焰) H2 + Cl2==【点燃】2HCl 氟气与氢气反应(黑暗处即可爆炸) H2+F2=2HF

【全国百强校】2018-2019学年上师大附中高三下英语三月月考(解析版)

2018-2019学年上师大附中高三下 英语三月月考 Ⅱ. Grammar and Vocabulary Section A Directions:After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank. Smart phones were once the best thing to happen to the tech industry. In the 11 years since the iPhone made its debut, smart phones ____1____(include)just about every other gadget. And it is surprising that it ____2____ alter every business. But ____3____ smart phones have achieved dominance, revolution is again in the air. At Google’s and Apple’s recent develop er conference, executives took the stage to show how much more irresistible they were making our phones. Then each company unveiled the software ____4____(help)you use your phone a lot less. There’s reason for this seemingly contradictory engineering effort, and it’s ____5____ I call“Peak Screen”.For much of the last decade, a technology industry ____6____(rule)by smart phones has pursued a singular goal of completely ____7____(conquer)our eyes. Tech has now captured pretty much all visual capacity. Americ ans spend three to four hours a day looking at their phones, and that’s the minimum estimaton. So tech giants are to build the beginning of something new: a ____8____(visual)tech world, a digital landscape ____9____ relies on voice assistants, headphones, watches and other wearables to take some pressure off our eyes. We may simply end up adding new devices to our screen-addled lives, ____10____ it could change everything again. As I argued, in many ways screens have become to dominant in our lives. The sooner we find something else, the better. 【答案】 1. have included 2. should 3. even if 4. to help 5. what 6. ruled 7. conquering

上海交大附中高一上学期英语期终试卷英语试题

上海交大附中09-10学年高一上学期期终试卷(英语) (满分100分,100分钟完成,答案一律写在答题纸上) 命题:王玮审核:韩立新校对:王慧良 Ⅱ. Grammar and vocabulary (17’) Part A (0.5’ *16 = 8’) Directions: Beneath each of the following sentences there are four choices marked A, B, C and D. Choose the one answer that best completes the sentence. 25.If you , you'd better go outside in the fresh air. A. faint B. have fainted C. are going to faint D. will faint 26.All but one worker here just now. A. is B. was C. has been D. were 27.It is the fourth time she has been sleeping in class, ? A. is she B. isn’t she C. isn’t it D. hasn’t she 28. matters little. A. He will come or not B. If or not he comes C. Whether he comes or not D. He comes or not 29.Hard as , it is quite easy to drill a hole on it with laser. A. is the diamond B. does the diamond C. the diamond is D. the diamond does 30.If that idea was wrong, the project is bound to fail, good all the other ideas might be. A. whatever B. though C. whatsoever D. however 31.The reason he referred to for his success is he is always working hard. A. why; that B. why; because C. that; that D. that; because 32.Many new means of transportation have been developed in our country, perhaps the hovercraft. A. and the strangest of which is B. the strangest of which being C. the strangest of which is D. and the strangest of them being 33.No one can walk the wire without a bit of fear unless ____ very young. A. having been trained B. trained C. to be trained D. being trained 34.Having considered the problem for a while, she thought better her first solution. A. to B. than C. from D. of 35.The bank is reported in the local newspaper in broad daylight yesterday. A. to be robbed B. robbed C. to have been robbed D. having been robbed

高中英语高三优质翻译汇编

考查语法句子中文翻译 定语从句 1.上班时间打盹的那个员工应该为此 事故负责。(blame)(浦外高三上开学 考) 2.养狗的居民常被告诫要看管 好他们的宠物,以防发生意外伤人情 况。(in case)(上师大附中高三开学考) 3. 学生表达自我的能力越强,他们就 越可能在入学面试中脱颖而出,这促使 了他们将练习演讲作为每日常规。 (rule)(2019届建平高三上期中)1.The worker who took a nap during the working hours is to blame for the accident. 2.Residents who raise dogs are often warned to take good care of their pets in case they should hurt people by accident. The stronger the students’  abilities to express themselves are, the more likely they are to stand out in the college admission interview, which encourages them to make it a rule to practise speaking every day. 名词性从 1.没有孩子在成长过程中不犯任何错 误,关键在于能否吃一堑,长一智。 (learn)(上中高三9月摸底考) 3.众所周知,学习方法因人而异, 适合你的不一定适合我。1.No children make no mistake while they are growing up and the most important thing is whether they can learn from (the) mistakes. As is known to all, learning methods vary from person to person, so what is suitable for you doesn’t necessarily 1

2017-2018年上海市交大附中高一上期末

上海交通大学附属中学2017-2018学年度第一学期高一数学期终试卷 2018.1 一、填空题(本大题共有12题,满分54分,1-6题每题4分,7-12题每题5分) 1. 若关于x 的不等式01x a x -3+的解集为()[),14,-?+?U ,则实数a =____________. 2. 设集合{}{}|2|1,A x x B x x m =-<=>,若A B A =I ,则实数m 的取值范围是____________. 3. 一条长度等于半径的弦所对的圆心角等于____________弧度. 4. 若函数2()log (1)f x x a =++的反函数的图像经过点(4,1),则实数a =____________. 5. 若1 23()f x x x -=-,则满足()0f x >的x 的取值范围是____________. 6. 已知(7)41()1x a x a x f x a x ì--???,若(0)f 是()f x 的最小值,则a 的取值范围是____________. 11. 设ab R ?,若函数()a f x x b x =+ +在区间(1,2)上有两个不同的零点,则(1)f 的取值范围为____________. 12. 已知下列四个命题: ①函数()2x f x =满足:对任意121 2,,x x R x x 喂,有[]12121()()22x x f f x f x 骣+÷??÷?÷?桫; ②函数(22()log ,()121x f x x g x =+=+-均为奇函数; ③若函数()f x 的图像关于点(1,0)成中心对称图形,且满足(4)()f x f x -=,那么(2)(2018)f f =; ④设12,x x 是关于x 的方程log (0,1)a x k a a =>?的两根,则121x x = 其中正确命题的序号是____________.

高中化学反应原理知识点苏教版

第一章化学反应与能量 第一单元化学反应中的热效应 一、焓变反应热 1.反应热:一定条件下,一定物质的量的反应物之间完全反应所放出或吸收的热量 2.焓变(ΔH)的意义:在恒压条件下进行的化学反应的热效应 (1).符号:△H (2).单位:kJ/mol 3.产生原因:化学键断裂——吸热化学键形成——放热 放出热量的化学反应。 (放热>吸热) △H 为“-”或△H <0 吸收热量的化学反应。(吸热>放热)△H 为“+”或△H >0 ☆常见的放热反应:①所有的燃烧反应②酸碱中和反应 ③大多数的化合反应④金属与酸的反应 ⑤生石灰和水反应⑥浓硫酸稀释、氢氧化钠固体溶解等 ☆常见的吸热反应:①晶体Ba(OH)2·8H2O与NH4Cl ②大多数的分解反应 ③以H2、CO、C为还原剂的氧化还原反应④铵盐溶解等 二、热化学方程式 书写化学方程式注意要点:①热化学方程式必须标出能量变化。 ②热化学方程式中必须标明反应物和生成物的聚集状态 (g,l,s分别表示固态,液态,气态,水溶液中溶质用aq表示) ③热化学反应方程式要指明反应时的温度和压强。 ④热化学方程式中的化学计量数可以是整数,也可以是分数 ⑤各物质系数加倍,△H加倍;反应逆向进行,△H改变符号,数值不变 三、燃烧热 1.概念:25 ℃,101 kPa时,1 mol纯物质完全燃烧生成稳定的化合物时所放出的热量。燃烧热的单位用kJ/mol 表示。 ※注意以下几点: ①研究条件:101 kPa;②反应程度:完全燃烧,产物是稳定的氧化物。 ③燃烧物的物质的量:1 mol;④研究内容:放出的热量。(ΔH<0,单位kJ/mol) 四、中和热 1.概念:在稀溶液中,酸跟碱发生中和反应而生成1mol H2O,这时的反应热叫中和热。 2.强酸与强碱的中和反应其实质是H+和OH-反应,其热化学方程式为: H+(aq) +OH-(aq) =H2O(l) ΔH=-57.3kJ/mol 3.弱酸或弱碱电离要吸收热量,所以它们参加中和反应时的中和热小于57.3 kJ/mol。 4.中和热的测定实验 五、盖斯定律 1.内容:化学反应的反应热只与反应的始态(各反应物)和终态(各生成物)有关,而与具体反应进行的途径无关,如果一个反应可以分几步进行,则各分步反应的反应热之和与该反应一步完成的反应热是相同的。 第二单元化学能与电能的转化 原电池: 1、概念:化学能转化为电能的装置叫做原电池_______ 2、组成条件:①两个活泼性不同的电极②电解质溶液③电极用导线相连并插入电解液构成闭合回路 3、电子流向:外电路:负极——导线——正极 内电路:盐桥中阴离子移向负极的电解质溶液,盐桥中阳离子移向正极的电解质溶液。 4、电极反应:以锌铜原电池为例: 负极:氧化反应:Zn-2e=Zn2+(较活泼金属) 正极:还原反应:2H++2e=H2↑(较不活泼金属) 总反应式:Zn+2H+=Zn2++H2↑

2016上师大附中高一下期末试卷

上师大附中2011-2012学年第二学期 高一年级语文期末考试卷 (满分100分时间120分钟) 1、文学文化常识填空。(5分) 1.莫泊桑是(国籍)作家,其代表作有《》、《》等。 2.“左联五烈士”除了白莽、柔石以外,还有、、。 3.《梦游天姥吟留别》标题中的“吟”解释为。 4成都锦官门外有蜀先主庙、武侯祠。“蜀先主”指的是,“武侯”指的是。 5. “五岳”名山之中,“中岳”是指,“北岳”是指。 二、诗词名句默写。(5分) 6.秦人不暇自哀,而后人哀之;,。 7.三山半落青天外,。 8. ,使我不得开心颜。 9.锦江春色来天地,。 10.黄沙百战穿金甲,。 3、课内现代文阅读。(13分) ①明日书店要出一种期刊,请柔石去做编辑,他答应了;书店还想印我的译著,托他来问版税的办法,我便将我和北新书局所订的合同,抄了一份交给他,他向衣袋里一塞,匆匆的走了。其时是一九三一年一月十六日的夜间,而不料这一去,竟就是我和他相见的末一回,竟就是我们的永诀。 ②第二天,他就在一个会场上被捕了,衣袋里还藏着我那印书的合同,听说官厅因此正在找寻我。印书的合同,是明明白白的,但我不愿意到那些不明不白的地方去辩解。记得《说岳全传》里讲过一个高僧,当追捕的差役刚到寺门之前,他就“坐化”了,还留下什么“何立从东来,我向西方走”的偈子。这是奴隶所幻想的脱离苦海的惟一的好方法,“剑侠”盼不到,最自在的惟此而已。我不是高僧,没有涅槃的自由,却还有生之留恋,我于是就逃走。 ③这一夜,我烧掉了朋友们的旧信札,就和女人抱着孩子走在一个客栈里。不几天,即听得外面纷纷传我被捕,或是被杀了,柔石的消息却很少。有的说,他曾经被巡捕带到明日书店里,问是否是编辑;有的说,他曾经被巡捕带往北新书局去,问是否是柔石,手上上了铐,可见

2019-2020年上海市交大附中高一上期中数学试卷

上海交通大学附属中学2019-2020学年度第一学期 高一数学期中考试试卷 一、填空题 1. 函数的定义域是 ____________ y =2. 已知,,则____________ {}|12A x x =-<<{}2|30,R x x x x -<∈A B ?=3. 当时,函数的值域为____________ 0x >()1f x x x -=+4. 设或,,则{|52U x x =-≤<-25,}x x Z <≤∈{} 2|2150A x x x =--={}3,3,4B =-U A C B ?=____________ 5. 已知集合,若,则实数值集合为____________ {}{}2,1,|2A B x ax =-==A B A ?=a 6. 满足条件的所有集合A 的个数是____________个{}{}{}1,3,53,5,71,3,5,7,9?=7. 已知不等式解集为A ,且,则实数的取值范围是____________2202x x x a +≤+2,3A A ∈?a 8. 若函数为偶函数且非奇函数,则实数的取值范围为 ____________ ( )f x =a 9. 已知是常数,且,若函数的最大值为10,则的最小值为,a b 0 ab ≠()33f x ax =+()f x ____________ 10. 设正实数,a b 满足,那么的最小值为____________324a ab b ++=1ab 11. 设,若是的最小值,则的取值范围为____________()()2,043,0x a x f x x a x x ?-≤?=?++>?? ()0f ()f x a 12. 若方程在(0,2)内恰有一解,则实数的取值范围为____________ () 22420ax a x --+=a

相关主题
文本预览
相关文档 最新文档