选修7unit2_Robots单元练习

Unit2 Robots

I.短语翻译（20％）

1 考验_________________

2 不管，别惹，让…一个人待着__________________ 3同情某人_________________ 4 转向，回转_________________

5 打电话给_______________

6 将…放在一边，为…保留/节省_______________ 7让某人做某事_________________ 8 被用来做某事_________________

9更确切地说_________________ 10 陪伴某人去某地_________________

11设法做成了某事_________________ 12 伸手去够…_________________

13 在…方面有天赋_________________ 14 曾经，一度_________________

15 获得硕士学位_________________ 16认真对待_________________

17对…印象深刻_______________ _ 18用…做实验，以…尝试_____________ 19提高社会地位20面部表情

II.单词拼写（20％）

1.When I began to sing, he laughed and made me e_____________.

2. They get ___________（离婚）two years ago.

3. The minister was _________ （陪伴）by his secretary to the US.

4. My sister’s wedding _________（典礼）took place at 12 sharp.

5. I ________（宣布）at the meeting that I did not support him.

6.The only __________（解释）for his behavior is that he’s mad.

7.With the teacher’s help, she s_________ away all the difficulties she had met.

8.My mother was __________(担心的，害怕的) when I fell over.

9.We had an _________（可怕的）earthquake here last year.

10.I don’t think the chair is f_________ enough to stand on.

Complete the words according to the initials.

11.When his uncle died, he received many letters and calls of s__________.

12.Tony is s_________the guidebook for information about Hawaii, where he will travel soon.

13.There were strong winds a__________ by heavy rain last night.

14.India d_________independence in 1947.

15.I hope they don’t ask e_________ questions, for I will be e________ at them.

16.They had a d________ that I attend their wedding.

17.Rita couldn’t provide a s_________ excuse for his absence.

18.I am so e__________ of your getting an extra day’s holiday.

19.The rainforest is disappearing at an a___________ rate.

20.They were accused of interfering in China’s internal a________.

III.完成句子（10％）1.It is said that the president has (有风流韵事) a beautiful actress.

2.The door needs_______________（油漆）.

3.If you don’t _____your study_________,（认真对待）you will fail in the coming examination.

4.They looked “the great man” up and down (带着好奇).

5. The farmer tried to _________their crops ________cold.(保护…不被冻坏)

6.She felt _________ （好像）she were floating in the air.

7.He is three years ____________ (比…年纪小)me.

8.You’d better _______ _______ (留出，储存)some money in case of future use.

9.He stared _______ _______ (羡慕地) at Robert’s new car.

10.He’s got _______ _______ (许多) work to do this morning.

IV.课文填空（20％）

Tony worked steadily on the （改进）. Claire tried to help once but was too (笨拙的). She （从梯子上摔下来）and even though Tony was in the next room, he （设法、成功地接住）her in time. He held her （稳固地）in his arms and she felt the warmth of his body. She screamed, pushed him away and ran to her home for the rest of the day.

The night of the party arrived. The clock （敲响）eight. The guests would be arriving soon and Claire told Tony to go into another room. At the moment, Tony folded his arms around her, (弯下、低下)his face close to hers. She cried out “Tony” and then (听见他宣称) that he didn’t want to leave her the next day and that he felt （不只）just the desire to please her. Then the front door bell rang. Tony freed her and （从视线中消失）. It was then that Claire realized that Tony had opened the curtains on the front window. Her guests had seen everything!

V. 单项填空(30%)

1.The boss had his workers __________________ all day long.

A. working

B. work

C. worked

D. works

2. She had a computer at home, and her parents desired that she ______ all her work at home.

A. do

B. does

C. must do

D. would do

3. Don't leave matches or cigarettes on the table within the _____ of little children.

A. hand

B. reach

C. space

D. distance

4. At least 100 people lost their lives in the fire, _____ 7 children.

A. contained

B. included

C. including

D. except

5.---Could you tell me where Jim lives?

---________ he used to live next door to me, and now he’s living in another town.

A. At a time

B. At times

C. At time

D. At one time

6. He enjoys nothing but _____________ money.

A. make

B. to make

C. making

D. makes

7.We were having lunch when the clock ___________ twelve.

A.beat

B.struck

C.hit

D.impressed

8.It was with great joy ___________ he received the news that his lost daughter had been found.

A.where

B.that

C.when

D.what

9.How I envy you _____________ an extra day’s holiday.

A.getting

B.to get

C.get

D.to getting

10.Harry is ____________my neighbour. He is also a good friend of mine.

A.less than

B.at least

C.at most

D.more than

11.All these gifts must be mailed immediately__________ in time for Christmas.

A.in order to have received

B.in order to receive

C.so as to be received

D.so as to be receiving

12.They appeared ______________ me, so I had to explain to them.

A.misunderstanding

B. misunderstood

C.to be misunderstood

D.to have misunderstood

13.The happy look on his face _____________ that he had passed the final examination

successfully.

A.explained

B.suggested

C.expressed

D.described

https://www.wendangku.net/doc/e018001729.html,st week I had my watch __________ and I had my father __________ a new one for me.

A.steal; buying

B. stolen; to buy

C.stolen; buy

D. steal; to buy

15.The mother, an ____ lady dressed in the latest Paris fashion walked behind her son.

A. grateful

B. considerate

C. elegant

D. brilliant

16. Preparations are being made for the Olympic Games __________in Beijing in 2008.

A. to be held

B. held

C. holding

D. to hold

17. It is not where you come from or what you are, but the ability to do the job _____ matters.

A. one

B. that

C. what

D. it

18.He hurried to the station only that the train had left.

A. to find

B. finding

C. found

D. to have found

19. The bank is reported in the local newspaper, _____ in broad daylight yesterday.

A. being robbed

B. having been robbed

C. to have been robbed

D. robbed

20. (2002年上海春季高考)Is this the reason _____ at the meeting for his carelessness in his work?

A. he explained

B. what he explained

C. how he explained

D. why he explained

21. Peter _____ the papers he was marking and reached for his cigarettes and matches.

A. set out

B. set off

C. set in

D. set aside

22. —How was your dinner date, dear? —Very nice.

A. Much more than I could have imagined

B. I can't wait to have it again

C. I could have helped myself to some more

D. If only they had served better

23. Many people stood near the bus stop, nervously waiting _____.

A. to pick up

B. picking up

C. to be picked up

D. being picked up

24. (NMET1994)—Do you think it is going to rain over the weekend? —_____.

A. I don't believe

B. I don't believe it

C. I believe not so

D. I believe not

25. It is always difficult being in a foreign country, _____ if you don't speak the language.

A. extremely

B. naturally

C. basically

D. especially

26. Don't leave matches or cigarettes on the table within the _____ of little children.

A. hand

B. reach

C. space

D. distance

27. Not until all the fish died in the river _____ how serious the pollution was.

A. did the villagers realize

B. the villagers realized

C. the villagers did realize

D. didn't the villagers realize

28.—I am sorry I stepped outside for a smoke. I was very tired.

—There is no _____ for this while you are on duty.

A. reason

B. excuse

C. cause

D. explanation

29.It was Asimov was eleven years old his talent for writing became obvious.

A. that, when

B. When, that

C. when, when

D. when, which

30. (2003年北京高考)—_____ David and Vicky married?

—For about 3 years.

A. How long were; being

B. How long have；got

C. How long have; been

D. How long did; get

Keys:Unit2 Robots

I.词组翻译

1.test out

2.leave/let alone

3.have/feel sympathy for

4.turn around

5.ring up

6.set aside

7.have sb doing sth

8.be used to do sth

9.or rather 10.accompany sb to sp 11.manage to do sth 12.reach for

13.have a talent/gift for 14.at one time 15.gain a Master’s degree

16.take sth. seriously 17.be impressed by 18.experiment with

19.improve one’s social position 20.facial expression

II.单词拼写

1.embarrassed

2.divorced

3.accompanied

4.marriage

5.declared

6.explanation

7.smoothed

8.alarmed

9.awful 10.firm

1. sympathy

2. scanning

3. accompanied

4. declared

5. embarrassing/ embarrassed

6. desire

7. satisfactory/satisfying

8. envious 9. alarming 10. affairs

III.完成句子

1.had an affair with

2.painting

3.take seriously

4.with wonder

5.protect from

6.as if/though

7.junior to/younger than

8.set aside

9. with envy 10.piles of

IV.1-5 AABCD 6-10BBBAD 11-15CDBCC 16-20ABACA

21-25DACDD 26-30BABBC

6.nothing but（除……而外；什么也没有；只有）后面可接

(1) 名词或代词：

For miles and miles I could see nothing except (= but) a great fire and lots of smoke.

一连好几英里，除了大火和浓烟我什么也看不见。

Under the soil there is nothing but sand. 在这层土壤下边只有沙子。

（2）不定式：

A cold-blooded animal has no choice but to lie down and sleep.

冷血动物别无选择，只好躺下来睡觉。

（注：这种句型中的不定式通常要带to；但当其前面的动词是do，或只有情态动词时，but后面的不定式要省去to。”有do无to”

例如：He did nothing but sleep all day long. 他什么也不干，成天睡觉。

I can but obey it.（= I can do nothing but obey it.）我只能服从。

再如：Politeness costs nothing but wins everything. 这是一句谚语，意为彬彬有礼，惠而不费，或者理解为和气生财。

高中化学选修4第三章单元测试题 （时间：100分钟共100分） 相对原子质量：H 1 O 16 Na 23 S 32 K 39 Ag 108 I 127 Ba 137 第I卷（选择题共50分） 一．选择题（本题包括10小题，每小题2分，共20分。每小题只有一个 ．．．．选项符合题意） 1、在pH＝1的无色溶液中能大量共存的离子组是 A、NH4＋.、Mg2+、SO42－、Cl- B.Ba2+、K+、OH-、NO3－ C. Al3+、Cu2+、SO42－、Cl- D.Na+、Ca2+、Cl-、AlO2－ 2、纯水在20℃和80℃时的pH A．前者大B．后者大C．相等D．无法确定 3、能正确表示下列反应的离子方程式是 A．铁跟盐酸反应：2Fe + 6H+＝2Fe3+ + 3H2↑ B．磷酸二氢钙溶液跟氢氧化钙反应：H2PO4—+ 2OH—＝PO43—+ 2H2O C．碳酸钙跟醋酸反应：CaCO3 + 2CH3COOH＝Ca2+ + 2CH3COO—+ H2O + CO2↑ D．铜片跟稀硝酸反应：Cu + NO3－+ 4H+＝Cu2＋+ NO↑+ 2H2O 4、用已知浓度的NaOH溶液滴定待测浓度的盐酸（盐酸置于锥形瓶中），以下操作会造成所测盐酸溶液浓度偏低的是 A．酸式滴定管未用待装溶液润洗 B．碱式滴定管未用待装溶液润洗 C．锥形瓶未用待装溶液润洗 D．在滴定前滴定管尖嘴部分有气泡，滴定后气泡消失 5、下列物质的水溶液能导电，但属于非电解质的是 A.CH3CH2COOH B.Cl2 C.NH4HCO3 D.SO2 6、将0.l mol·L-1醋酸溶液加水稀释，下列说法正确的是 A．溶液中c（H+）和c（OH-）都减小B．溶液中c（H+）增大 C．醋酸电离平衡向左移动D．溶液的pH增大 7、从下列现象可以判断某酸是强酸的是 A．加热该酸至沸腾也不分解 B．该酸可以与石灰石反应放出CO2 C．该酸可以把Al(OH)3沉淀溶解 D．该酸浓度为0.1 mol·L-1时的pH为1 8、常温下某溶液中由水电离产生的[H+]=1×10-5mol·L-1，则下列叙述正确的是 A．PH值为5 B．一定是酸溶液 C．可能是强酸的酸式盐溶液D．PH值可能为9

第一章单元测试 一、选择题（只有一个选项符合题意） 1．下列物质属于有机物的是（）A．氰化钾（ KCN）B．碳酸氢铵（ NH4HCO3） C．乙炔（ C2H2） D．碳化硅（ SiC） 2．下列属于分离、提纯固态有机物的操作的是（）A．蒸馏B．萃取C．重结晶D．分液 3．甲醚和乙醇是同分异构体，其鉴别可采用化学方法及物理方法，下列鉴别方法中不能对 二者进行鉴别的是（） A．利用金属钠或者金属钾B．利用质谱法 C．利用红外光谱法D．利用核磁共振氢谱 4．通过核磁共振氢谱可以推知（CH3）2CHCH2CH2OH有多少种化学环境的氢原子（）A．6B．5C． 4D． 3 5．科学实验表明，在甲烷分子中， 4 个碳氢键是完全等同的。下面说法中错误的是（）A．键的方向一致B．键长相等C．键角相等D．键能相等 6．能够证明甲烷构型是四面体的事实是（）A．甲烷的四个键键能相同B．甲烷的四个键键长相等 C．甲烷的所有C-H 键键角相等D．二氯甲烷没有同分异构体 7．下列烷烃中可能存在同分异构体的是（）A．甲烷B．乙烷C．丙烷D．丁烷 8．有关其结构说法正确的是（）A . 所有原子可能在同一平面上 B. 所有原子可能在同一条直线上 C . 所有碳原子可能在同一平面上 D. 所有氢原子可能在同一平面上 9．下列关于有机物的命名中不正确的是（）A．2， 2-二甲基戊烷B． 2-乙基戊烷C． 2,3-二甲基戊烷D． 3-甲基己烷 10．某炔烃经催化加氢后，得到2-甲基丁烷，该炔烃是 A. 2-甲基 -1-丁炔 B. 2-甲基 -3- 丁炔 C. 3-甲基 -1-丁炔 D. 3-甲基 -2-丁炔 11．能够快速、微量、精确的测定相对分子质量的物理方法是（）A．质谱法B．红外光谱法C．紫外光谱法D．核磁共振谱法 12．有机物的天然提取和人工合成往往得到的是混合物，假设给你一种这样的有机混合物让你研究，一般要采取的几个步骤是（）

高中物理选修3-5原子物理高频考点必记清单 考点一：波粒二象性 一、物理学史： 1.普朗克能量子论观点：1900年德国物理学家普朗克提出，电磁波的发射和吸收是不连续的，而是一份一份的，每一份电磁波的能量νεh =。 2.爱因斯坦光子论：1905爱因斯坦提出，空间传播的光也是不连续的，而是一 份一份的，每一份称为一个光子，光子具有的能量与光的频 成正比。即：νεh =. 3.赫兹最早发现了光电效应现象。 4. 德布罗意指出，实物粒子也具有波动性，这种波称为德布罗意波，也叫物质波。满足下列关系：P h h ==λεν，（P 为粒子动量） 二、物理现象 1.热辐射现象（了解）：任何物体在任何温度下都要发射各种波长的电 磁波，并且其辐射能量的大小及辐射能量按波长的分布都与温度有关。 这种由于物质中的分子、原子受到热激发而发射电磁波的现象称为热 辐射。 2.光电效应现象：在光（包括不可见光）的照射下，从金属中发射出电子的现象。发射出的电子称为光电子。 3.康普顿效应（了解）：1923年，美国物理学家康普顿在研究x 射线通过实物物质发生散射的实验时，发现了一个新的 现象，即散射光中除了有原波长λ0的x 光外，还产生了波长λ>λ0 的x 光，其波长的增量随散射角的不同而变化。 这种现象称为康普顿效应(Compton Effect)。 三、物理规律

1.黑体辐射规律（了解）：黑体具有向四周辐射能量的本领，又有吸收外界辐射来的能量的本领（在任何温度下，全部吸收任何波长的辐射）。实验规律：（1）随着温度的升高，黑体的辐射强度都有增加； （2）随着温度的升高，辐射强度的极大值向波长较短方向移动。（右图） 2光电效应规律（重点）：①任何一种金属都有一个极限频率，入射光的频率必须大于这个极限频率才能发生 光电效应，低于极限频率的光不能发生光电效应。 ②光电子的最大初动能与入射光的强度无关，光电子的最大初动能随入射光频率的增大而增大。 ③饱和光电流强度（反映单位时间发射出的光电子数的多少）与入射光强度成正比。 ④光电子的发射一般不超过10－9秒（光电效应的瞬时性）。 3.爱因斯坦光电效应方程（重点）：0W h E k -=ν。E k 是光电子的最大初动能，当E k =0 时，νc 为极限频率，νc =h W 0. 四、光的波粒二象性 物质波 康普顿效应和光电效应说明光具有粒子性，光的干涉和衍射等现象说明光具有波动性。因此光具有波粒二象性。 大量光子表现出的波动性强，少量光子表现出的粒子性强；频率高的光子表现出的粒子性强，频率低的光子表现出的波动性强。实物粒子也具有波动性，这种波称为德布罗意波，也叫物质波。满则下列关系：P h h ==λεν，。从光子的概念上看，光波是一种概率波。 考点二：原子结构

人教版选修4第三章《水溶液中的离子平衡》测试题（A 卷） （时间45分钟，满分100分） 一、选择题（1--6只有．．1．个．选项符合题意，7-10有2．个．选项符合题意，每小题5分，共50分。） 1． 用水稀释0.1mol/L 氨水时，溶液中随着水量的增加而减小的是（ ） A ．) O H NH () OH (23?-c c B ． ) OH ()O H NH (23-?c c C ．c (H +)和c (OH -)的乘积 D ．OH -的物质的量 2． 某学生的实验报告所列出的下列数据中合理的是 A ．用10mL 量筒量取7.13mL 稀盐酸 B ．用托盘天平称量25.20g NaCl C ．用广泛pH 试纸测得某溶液的pH 为2.3 D ．用25mL 滴定管做中和滴定时，用去某浓度的碱溶液21.70mL 3． 下列溶液加热蒸干后，能析出溶质固体的是 A ．AlCl 3 B ．KHCO 3 C ．Fe 2(SO 4)3 D ．NH 4HCO 3 4． 一定量的盐酸跟过量的铁粉反应时，为了减缓反应速度，且不影响生成氢气的总量，可向盐酸中加入适量的 ①NaOH 固体 ②H 2O ③NH 4Cl 固体 ④CH 3COONa 固体 ⑤NaNO 3固体 ⑥KCl 溶液 A ．②④⑥ B ．①② C ．②③⑤ D ．②④⑤⑥ 5． 在25℃时，100mL 0.4mol/L 的盐酸与等体积0.6mol/L 的氢氧化钠溶液混合后，溶液的pH 值为 A ．6 B ．5 C ．12 D ．13 6．下列方程式书写正确的是（ ） A.HCO 3－在水溶液中的电离方程式：HCO 3－＋H 2O H 3O ＋＋CO 32－ B.H 2SO 3的电离方程式H 2SO 32H ＋＋SO 32－ C .CO 32－的水解方程式：CO 32－＋2H 2O H 2CO 3＋2OH － D.CaCO 3的电离方程式：CaCO 3 Ca 2+＋CO 32－ 7. 氢氰酸（HCN ）的下列性质中，可以证明它是弱电解质的是 （ ） A ．1mol/L 该酸溶液的pH 约为3 B ．HCN 易溶于水 C ．10mL 1mol/L HCN 恰好与10mL 1mol/L NaOH 溶液完全反应 D ．在相同条件下，HCN 溶液的导电性比一元强酸溶液的弱 8..下列溶液中有关物质的量浓度关系正确的是（ ） A ．pH=2的HA 溶液与pH=12的MOH 溶液任意比混合： c (H +) + c (M +) == c (OH -) + c (A -) B ．pH 相等的CH 3COONa 、NaOH 和Na 2CO 3三种溶液： c (NaOH)＜c (CH 3COONa)＜c (Na 2CO 3) C ．物质的量浓度相等CH 3COOH 和CH 3COONa 溶液等体积混合： c (CH 3COO -) +2c (OH -) == 2c (H +) + c (CH 3COOH) D ．0.1mol ·L -1的NaHA 溶液，其pH=4：c (HA -)＞c (H +)＞c (H 2A)＞c (A 2-) 9. 盐酸、醋酸、纯碱和碳酸氢钠是生活中常见的物质。下列表述正确的是（ ） A ．在NaHCO 3溶液中加入与其等物质的量的NaOH ，溶液中的阴离子只有CO - 23和OH -

选修七 Unit 1《Living well》单元测试3 笔试部分： I. 单项选择 21. I don't know who invented _______ telephone, it's really _______ most useful invention. A. the; a B. the; the C. a; a D. 不填；不填 22. She heard a scream, _______ brought her heart into his mouth. A. it B. this C. that D. which 23. It seems difficult to _______ “hurt” from “injure” in meaning. A. judge B. tell C. divide D. separate 24. I have never dreamed of _______ such a good hotel in this town. A. there was B. there is C. there being D. there have 25. —Which one will I choose? —Well, you can take _______ of them; I'll keep none. A. both B. all C. any D. either 26. She remained ______ for a while after the movie ended, which made others ______. A. sitting; puzzling B. sitted; puzzled C. seated; puzzled D. seated; puzzling 27. Sometimes, the e ntrance tickets are _______ free of charge from the university. A. available B. valuable C. imaginable D. comfortable 28. —How about this one? —Well… it is too expensive and _______ the color doesn't suit me. A. somewhat B. however C. somehow D. anyway 29. _______ you keep on practicing English, I'm sure you will be able to speak it fluently. A. As soon as B. As long as C. Even if D. As if 30. Though I have no idea _______ the new film is about, I know it is popular with all who have seen it. A. whether B. why C. that D. what 31. As we have already known, dolphins use sound to communicate _______ each other. A. to B. through C. in D. with 32. All cases _______ children are dealt with in a special children's court. A. concerned B. concerning C. including D. included 33. Miss. Black _______ Beijing in a few days. Do you know when the earliest plane _______ on Sunday? A. is leaving; is taking off B. leaves; takes off C. is leaving; takes off D. leaves; is taking off 34. Let's _______ our personal feelings for now, and get to our business. A. set up B. set off C. set about D. set aside 35. —Goodbye, Peter, remember me to your parents. —_____________.

高中化学选修5《认识有机化合物》单元测试题（含答案） (时间：90分钟分值：100分) 一、选择题(每小题只有一个选项符合题意，每小题4分，共48分) 1．轴烯是一类独特的星形环烃。三元轴烯()与苯( ) A．均为芳香烃B．互为同素异形体 C．互为同系物D．互为同分异构体 2．互为同分异构体的物质不可能( ) A．具有相同的相对分子质量 B．具有相同的分子式 C．具有相同的组成元素 D．具有相同的熔、沸点 3．烷烃的命名正确的是( ) A．4甲基3丙基戊烷 B．3异丙基己烷 C．2甲基3丙基戊烷 D．2甲基3乙基己烷 4．下列有机物的命名错误的是( )

5．如图所示是一个有机物的核磁共振氢谱图，请你观察图谱，分析其可能是下列物质中的( ) A ．CH 3CH 2CH 2CH 3 B ．(CH 3)2CHCH 3 C ．CH 3CH 2CH 2OH D ．CH 3CH 2COOH 6．苯丙酸诺龙是一种兴奋剂，结构简式为。有关苯 丙酸诺龙的说法不正确的是( ) A ．含有两种官能团 B ．含有脂环 C ．是一种芳香族化合物 D ．含有酯基 7．下列烃中，一氯代物的同分异构体的数目最多的是( ) A ．乙烷 B ．2-甲基丙烷 C ．2，2-二甲基丙烷 D ．2，2-二甲基丁烷 8．分子式为C 4H 8Cl 2的有机物共有(不含立体异构)( ) A ．7种 B ．8种 C ．9种 D ．10种 9．下列除去杂质的方法，正确的是( ) A ．除去乙烷中少量的乙烯：光照条件下通入Cl 2，气液分离

B ．除去乙醇中少量乙酸：加入碳酸钠溶液，分液 C ．除去FeCl 3溶液中少量的CuCl 2：加入过量铁粉，过滤 D ．除去乙酸乙酯中少量的乙酸：用饱和碳酸钠溶液洗涤，分液 10．已知异丙苯的结构简式如下，下列说法错误的是( ) A ．异丙苯的分子式为C 9H 12 B ．异丙苯的沸点比苯高 C ．异丙苯中碳原子可能都处于同一平面 D ．异丙苯和苯为同系物 11．柠檬烯是一种食用香料，其结构简式如图所示。下列有关柠檬烯的说法正确的是( ) A ．它的一氯代物有6种 B ．它的分子中所有的碳原子一定在同一平面上 C ．它和丁基苯(C 4H 9)互为同分异构体 D ．一定条件下，它可以发生加成、取代、氧化、还原等反应 12．某气态化合物X 含C 、H 、O 三种元素，现已知下列条件：①X 中C 的质量分数；②X 中H 的质量分数；③X 在标准状况下的体积；④X 对氢气的相对密度；⑤X 的质量，欲确定化合物X 的分子式，所需的最少条件是( ) A ．①②④ B ．②③④ C ．①③⑤ D ．①② 二、非选择题(本题包括6个小题，共52分) 13．(8分)某物质只含C 、H 、O 三种元素，其分子模型如图所示，分子中共有12个原子(图中球与球之间的连线代表单键、双键等化学键)。

2018-2019学年选修2-1第三章训练卷 空间向量与立体几何（二） 注意事项： 1．答题前，先将自己的姓名、准考证号填写在试题卷和答题卡上，并将准考证号条形码粘贴在答题卡上的指定位置。 2．选择题的作答：每小题选出答案后，用2B 铅笔把答题卡上对应题目的答案标号涂黑，写在试题卷、草稿纸和答题卡上的非答题区域均无效。 3．非选择题的作答：用签字笔直接答在答题卡上对应的答题区域内。写在试题卷、草稿纸和答题卡上的非答题区域均无效。 4．考试结束后，请将本试题卷和答题卡一并上交。 一、选择题(本大题共12个小题，每小题5分，共60分，在每小题给出的四个选项中，只有一项是符合题目要求的) 1．已知三棱锥O ABC -，点M ，N 分别为AB ，OC 的中点，且OA =uu v a ，OB =uu u v b ，OC =uuu v c ，用a ，b ，c 表示MN uuu v ，则MN uuu v 等于（ ） A ．()1 2 +-b c a B ．()1 2 +-a b c C ． ()1 2 -+a b c D ． ()1 2 --c a b 2．已知()cos ,1,sin αα=a 、()sin ,1,cos αα=b ，且∥a b ，则向量+a b 与-a b 的夹角是（ ） A ．90° B ．60° C ．30° D ．0° 3．已知A 、B 、C 三点的坐标分别为()4,1,3A 、()2,5,1B -、()3,7,C λ，若AB ⊥u u u v AC uuu v ， 则λ等于（ ） A ．28 B ．28- C ．14 D ．14- 4．若向量{},,a b c 是空间的一个基底，则一定可以与向量2=+p a b ，2=-q a b 构成空间的另一个基底的向量是（ ） A ．a B ．b C ．c D ．+a b 5．在空间直角坐标系O xyz -中，已知()2,0,0A 、()2,2,0B 、()0,2,0C 、(D ，若1S 、2S 、3S 分别表示三棱锥D ABC -在xOy 、yOz 、zOx 坐标平面上的正投影图形的面积，则（ ） A ．123S S S =≠ B ．231S S S =≠ C ．132S S S =≠ D ．123S S S == 6．已知a 、b 是两异面直线，A 、B a ∈，C 、D b ∈，AC b ⊥，BD b ⊥且2AB =，1CD =，则直线a 、b 所成的角为（ ） A ．30° B ．60° C ．90° D ．45° 7．如图所示，在平行六面体1111ABCD A B C D -中，点E 为上底面对角线11A C 的中点，若1BE AA xAB y AD =++uu u v uuu v uu u v uuu v ，则（ ） A ．12x =-，1 2 y = B ．12x =，1 2 y =- C ．12x =-，1 2 y =- D ．12x = ，1 2y = 8．已知()1,1,2A -、()1,0,1B -，设D 在直线AB 上，且2AD DB =u u u v u u u v ， 设C 1,,13λλλ?? ++ ???，若CD AB ⊥，则λ的值为（ ） A ．116 B ．116- C ．12 D ．1 3 此 卷 只装 订 不密 封 班级 姓名 准考证号 考场号 座位号

阶段检测一(Unit 1) 时间：120分钟满分：150分 第二部分阅读理解(共两节，满分40分) 第一节(共15小题；每小题2分，满分30分) A About twenty of us had been fortunate enough to receive invitations to a film-studio(影棚) to take part in a crowd-scene.Although our“act”would last only for a short time，we could see quite a number of interesting things. We all stood at the far end of the studio as workmen prepared the scene, setting up trees at the edge of a winding path.Very soon, bright lights were turned on and the big movie-camera was wheeled into position.The director shouted something to the camera operator and then went to speak to the two famous actors nearby.Since it was hot in the studio，it came as a surprise to us to see one of the actors put on a heavy overcoat and start walking along the path.A big fan began blowing tiny white feathers down on him，and soon the trees were covered in“snow”．Two more fans were turned on, and a“strong wind”blew through the trees.The picture looked so real that it made us feel cold. The next scene was a complete contrast(对比)．The way it was filmed was quite unusual.Pictures taken on an island in the Pacific were shown on a glass screen.An actor and actress stood in front of the scene so that they looked as if they were at the water's edge on an island.By a simple trick like this, palm trees, sandy beaches, and blue, clear skies had been brought into the studio! Since it was our turn next, we were left wondering what scene would be prepared for us.For a full three minutes in our lives we would be experiencing the excitement of being film“stars”！ 21．Who is the author? A．A cameraman. B．A film director. C．A crowd-scene actor. D．A workman for scene setting. 22．What made the author feel cold? A．The heavy snowfall. B．The man-made scene. C．The low temperature. D．The film being shown. 23．What would happen in the“three minutes”mentioned in the last paragraph? A．A new scene would be filmed. B．More stars would act in the film. C．The author would leave the studio. D．The next scene would be prepared. B The other day I was watching Sportscenter when one of those “human interest” stories came on and really caught my attention.

高中化学选修５第一章单元检测卷 一、选择题(本题包括28小题,每小题只有一个选项符合题意。） 1.下列物质属于有机物的是 A ．氰化钾（KC Ｎ）B.碳酸氢铵（NH 4ＨC Ｏ３)C ．乙炔(C 2H 2)Ｄ.碳化硅(S ｉＣ） ２.下列化学式中只能表示一种物质的是( ） A.C 3Ｈ７Cl B.ＣＨ2Cl 2 Ｃ．C 2H 6O Ｄ.C 2Ｈ４O 2 3.按官能团分类，下列物质与 同类的是 A ． ??? B. ? Ｃ．???? D ．ＣH ３COO Ｈ ４．已知丙烷的二氯代物有四种异构体，则其六氯代物的异构体数目为 A 、2种 B 、３种 C 、４种 D 、5种 5. 下列各有机物的名称肯定错误的是 A ．３-甲基-2－戊烯 B.３－甲基－2－丁烯 C ．2，2—二甲基丙烷 D.３-甲基-１－丁烯 6.有机物 的正确命名为 A ．２-乙基－3,3-二甲基-４-乙基戊烷 B.3，３-二甲基－4-乙基戊烷 C.3,3,４-三甲基已烷 D ．2,3，3－三甲基已烷 7.某烯烃与H 2加成后的产物是 ， 则该烯烃的结构式可能有 A ．1种 ? B.2种???C.3种?? Ｄ．4种 ８.分子式为C 8H 10的芳香烃,苯环上的一溴取代物只有一种,该芳香烃的名称是 A ．乙苯 B.邻二甲苯 C.间二甲苯 D.对二甲苯 ９.下列同分异构体中属于官能团种类异构的是 A.ＣH 3C Ｈ2CH ２CH 3和C Ｈ３ＣH （CH 3)2 B ．CH 2＝Ｃ(CH 3)2和ＣＨ3CH ＝ＣH ＣH 3 —O —CH 3 —OH —CH 3 OH —CH 2—OH

C．CＨ３CH2ＯH和ＣH3OＣＨ3 D.ＨCOＯC2Ｈ5和CＨ３COＯCH３10.下列各组物质中，属于同分异构体的是 A．CH 32 CH 2 CH 3 CH 3 和 CH 3 CHCH 2 CH 2 CH 2 CH 3 CH 3 Ｂ.H２N－CH２－ＣOＯH和H３Ｃ-CH2－ＮO2 C.CH3-CH２-CH2－COＯH 和H3C－CＨ2－CH２－CH2－COOH Ｄ．H3C－CH2-O－CH2－CH３和 CH 3 CH 3 CHCH 3 12.仔细分析下列表格中烃的排列规律,判断排列在第15位烃的分子式是 ６12 614712 D．C７H14 13. 2002年诺贝尔化学奖获得者的贡献之一是发明了对有机物分子进行结构分析的质谱法。其方法是让极少量的(10－9ｇ）化合物通过质谱仪的离子化室使样品分子大量离子化，少量分子碎裂成更小的离子。如C２H6离子化后可得到C2H6+、Ｃ2H5＋、C2H４+……,然后测定其质荷比。某有机物样品的质荷比如下图所示(假设离子均带一个单位正电荷,信号强度与该离子的多少有关）,则该有机物可能是( )

高中物理选修3-5选择题集锦 一．选择题（共30小题） 1．（2014?上饶二模）下列说法正确的是（） A．在核反应堆中，为使快中子减速，在铀棒周围要放“慢化剂”，常用的慢化剂有石墨、重水和普通水 B．按照玻尔理论，氢原子核外电子从半径较小的轨道跃迁到半径较大的轨道时，电子的动能减少，原子总能量增大C．当用蓝色光照射某金属表面时有电子逸出，则改用红光照射也一定会有电子逸出 D．核力是弱相互作用的一种表现，在原子核的尺度内，核力比库仑力大得多，其作用范围在1.5×l0﹣l0m E．原子从a能级状态跃迁到b能级状态时发射波长为λ1的光子；原子从b能级状态跃迁到c能级状态时吸收波长为λ2 的光子，已知λ1＞λ2．那么原子从a能级状态跃迁到到c能级状态时将要吸收波长的光子2．（2014?江西二模）如图为氢原子的能级示意图，锌的逸出功是3.34ev，那么对氢原子在能级跃迁过程中发射或吸收光子的特征认识正确的是（） A．用氢原子从高能级向基态跃迁时发射的光照射锌板一定不能产生光电效应 B．一群处于n=3能级的氢原子向基态跃迁时，能放出3种不同频率的光 C．一群处于n=3能级的氢原子向基态跃迁时，发出的光照射锌板，锌板表面所发出的光电子的最大初动能为8.75eV D．用能量为10.3eV的光子照射，可使处于基态的氢原子跃迁到激发态 E．用能量为14．OeV的光子照射，可使处于基态的氢原子电离 3．（2014?开封二模）下列描述中正确的是（） A．卢瑟福的原子核式结构学说能很好地解释α粒子散射实验事实 B．放射性元素发生β衰变时所释放的电子来源于原子的核外电子 C．氢原子吸收一个光子跃迁到激发态后，再向低能级跃迁时放出光子的频率一定等于入射光子的频率 D．分别用X射线和紫光照射同一金属表面都能发生光电效应，则用X射线照射时光电子的最大初动能较大 E． （钍）核衰变为（镤）核时，衰变前Th核质量大于衰变后Pa核与β粒子的总质量4．（2014?南昌模拟）人们发现，不同的原子核，其核子的平均质量（原子核的质量除以核子数）与原子序数有如图所示的关系．下列关于原子结构和核反应的说法正确的是（） A．由图可知，原子核D和E聚变成原子核F时会有质量亏损，要吸收能量 B．由图可知，原子核A裂变成原子核B和C时会有质量亏损，要放出核能 C．已知原子核A裂变成原子核B和C时放出的γ射线能使某金属板逸出光电子，若增加γ射线强度，则逸出光电子的最大初动能增大 D．在核反应堆的铀棒之间插入镉棒是为了控制核反应速度 E．在核反应堆的外面修建很厚的水泥层能防止放射线和放射性物质的泄漏 5．（2014?福建模拟）太阳内部持续不断地发生着热核反应，质量减少．核反应方程是，这个核反应释放出大量核能．已知质子、氦核、X的质量分别为m1、m2、m3，真空中的光速为c．下列说法中正确的是（）A． 方程中的X表示中子（） B． 方程中的X表示电子（） C．这个核反应中质量亏损△m=4m1﹣m2 D．这个核反应中释放的核能△E=（4m1﹣m2﹣2m3）c2

人教版高中化学选修四第三章《水溶液中的离子平衡》测试试题（含答案）第三章《水溶液中的离子平衡》测试题 一、单选题（每小题只有一个正确答案） 1．关于强弱电解质及非电解质的组合完全正确的是( ) A B C D 强电解质NaCl H2SO4CaCO3HNO3 弱电解质HF BaSO4HClO NaHCO3 非电解质Cl2CS2C2H5OH SO2 A．A B．B C．C D．D 2．25℃时，水的电离可达到平衡：H2O H+＋OH－△H＞0，下列叙述正确的是( ) A．向水中加入少量固体硫酸氢钠，c(H+)增大，K w不变 B．向水中加入稀氨水，平衡逆向移动，c(OH－)降低 C．向水中加入少量固体CH3COONa，平衡逆向移动，c(H+)降低 D．将水加热，K w 增大，pH不变 3．向 10 mL pH=12的某碱溶液中加入10 mL pH=2的盐酸，充分反应后滴入酚酞试液，溶液变红，则此碱一定是( ) A．一元强碱 B．多元强碱 C．弱碱 D．任何强碱 4．下列说法正确的是（） A．在弱酸HA的溶液中存在三个平衡，HA的电离平衡，H2O的电离平衡，A-的水解平衡B．可利用反应2CO(g)=2C(s)+O2(g) (ΔH＞0、ΔS≤0)来消除CO污染 C．除去Cu粉中混有的CuO，可将混合物加入稀硝酸中，充分反应后过滤、洗涤 D．根据过渡态理论，反应物转化为生成物的过程中要经过能量较高的状态 5．判断下列化学基本概念的依据不正确的是( ) A．溶液的酸碱性：溶液中c(H+)和c(OH－)的相对大小 B．强弱电解质：溶液的导电能力大小 C．离子化合物：化合物中是否含离子键 D．氧化还原反应：元素化合价是否变化 6．下列离子方程式正确的是( ) A．NaHS溶于水: NaHS ＝ Na+ + H+ + S2－ B．Al(OH)3电离: H2O+AlO2－+H+＝Al(OH)3＝Al3++3OH－ 1/ 11

Unit 4 Sharing 第二部分：阅读理解（共两节，满分40分） 第一节（共15小题；每小题2分，满分30分） 阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。 A ★★☆☆☆ Abdul, who was a tailor in a village in southern India, managed to earn enough to keep himself, his wife and his children. Tailoring is a trade that depends on having a sharp eye. When Abdul was 50, his eyes began to cloud over with cataracts (白内障). A year later he was almost completely blind. With no social security to fall back on, his wife and children had to somehow earn the money to sup port the family. However, Abdul’s luck changed when he was seen by a mobile eye team supported by Sight Savers. They performed a cataract removal operation which restored (恢复) his sight. Abdul is very special to us, because he was the two millionth person whose sight we restored. That was back in 1987. In 1991, Taj Eibi, a mother of two sons, became the three millionth person to receive the gift of sight from Sight Savers at a mobile eye hospital in Pakistan. Now she’s running the family home again, working in the fields with her sons and helping at the local primary school. How much did it cost to bring about this miracle (奇迹)? Just ￡8. Imagine, ￡8 will give the priceless gift of sight to a blind person. And ￡16 will restore the sight of two blind people. You can help by sparing a few minutes to send us your donation to: Sight Savers, FREEPOST, Haywards Heath,

精品文档 第一章认识有机化合物单元检测题（90分钟 100分） 班级：姓名：学号： 一、选择题(本题包括16小题，每小题3分，共48分。每小题只有一个选项符合题意。) 1．下列物质属于有机物的是 ( ) A.NaCO B. CaC C. CO(NH) D. CO 已知丙烷的二氯代物有四种异构体，则其六氯代物的异构体数目为（） 232222. A 两种 B 三种 C 四种 D五种 3. 可以用分液漏斗分离的一组液体混合物是（） A.溴和四氯化碳 B.苯和溴苯 C.水和硝基苯 D.苯和汽油 4.有A、B两种烃，含碳元素的质量分数相等，下列关于A和B的叙述正确的是（） A. A和B一定是同分异构体 B. A和B不可能是同系物 C. A和B实验式一定相同 D. A和B各1 mol完全燃烧后生成的CO的质量一定相等25.下列化学式中只能表示一种物质的是（） Ａ.CHCl Ｂ.CHCl Ｃ.CHO Ｄ.CHO2 甲基带有的电荷数是（） 622327246. A.-3 B.0 C.+1 D.+3 7.下列各有机物的名称肯定错误的是（） A.3－甲基－2－戊烯 B.3－甲基－2－丁烯 C.2，2—二甲基丙烷 D.3－甲基－1－丁烯 8.为了减少大气污染，许多城市推广汽车使用清洁燃料。目前使用的清洁燃料主要有两类，一类是压缩天然气（CNG），另一类是液化石油气（LPG）。这两类燃料的主要成分都是 A碳水化合物 B碳氢化合物 C氢气 D醇类 9．甲酸甲酯分子内处于不同化学环境的氢原子种数(即核磁共振谱的峰数)为( ) A．1 B．2 C．3 D．4 10．下列物质中，属于酚类的是 ( ) 11．一种新型的灭火剂叫“1211”，其分子式是CFClBr。命名方法是按碳、氟、氯、溴的顺序分别以阿拉2伯数字表示相应元素的原子数目(末尾的“0”可略去)。按此原则，对下列几种新型灭火剂的命名不．正确的是 ( ) ．．A. CFBr ── 1301 B. CFBr ── 122 C. CFCl ── 242 D. CClBr ── 2012 22232242精品文档． 精品文档 12．利用红外光谱对有机化合物分子进行测试并记录，可初步判断该有机物分子拥有的( ) A．同分异构体数B．原子个数C．基团种类D．共价键种类 13.某烯烃与H加成后得到2,2－二甲基丁烷，该烯烃的名称是（）2Ａ.2,2－二甲基－3－丁烯Ｂ.2,2－二甲基－2－丁烯 Ｃ.2,2－二甲基－1－丁烯Ｄ.3,3－二甲基－1－丁烯 14．按系统命名法命名为( )

选修7 Unit 1 Living well单元测试题 姓名班级得分自我评价 单项选择 30% 1. — Are you glad to hear from her? — Of course. ___ Believe it or not ________, we last met more than thirty years ago. A. In addition B. That is to say C. In other words D. 2. He hurried to the station only _ to find ______ that the train had left. A. B. finding C. found D. to have found 3. The doctor insisted that only in this _ way _____ could the patient survive in the operation. A. B. method C. means D. meaning 4. Halfway up the mountain we stopped to ___ take breath ___________. A. keep our breath B. hold our breath C. be out of breath D. 5. __ Faced _____ with a difficult situation, Arnold decided to ask his boss for advice. A. To face B. Having faced C. D. Facing 6. He was severely injured in the war and his __ disability ________ prevented him from holding any job. A. inability B. C. hurt D. pain 7. The health organization is ___ celebrating ________ its tenth anniversary this year. A. congratulating B. being congratulated C. D. being celebrated 8. You were silly __ not to lock ________ your car, otherwise it wouldn’t have been stolen. A. not locking B. to not lock C. not having locked D. 9. The world will be different, and we will have to be prepared to _ adapt to _______ the change. A. B. adopt to C. apply to D. devote to 10. The fire made _ it ____ difficult to rescue the people trapped under the ruins in the earthquake. A. / B. this C. that D. 11. If better use is made of _______ your spare time, you will have a more brilliant future. A. B. spent C. used for D. taken 12. Having a walk after supper is certainly good for the old people, but it remains to be seen ______ whether they will enjoy it. A. to see B. C. seeing D. seen 13. The disaster is so serious that the people in that area really have a lot of difficulty going on _____ with their lives. A. with going B. to go on C. D. in going 14. Energy drinks are not allowed _ to be made ______ in Australia but are brought in from New Zealand. A. to make B. C. to have been made D. to be making 15. Tom was very angry about __ not being invited ______ to Mary’s birthday party. A. not inviting B. being not invited C. D. not to be invited