二、完形填空（共15小题，15分。每小题1分）
阅读下面短文，从各题A、B、C、D四个选项中，选出可以填入空白处的最佳答案。
Tomorrow will be another day
On my way home from work every evening, there would be a homeless middle-aged man standing by the walkway. He was always 26 smiling, and sometimes almost dancing.
Every day after work I would remember to gather any spare 27 ,and put it aside. If l saw him I'd give him the coins. A feeling of 28 would come over me every time I saw him as he looked to feel joyful. Sometimes we would ask each other about our day. His 29 would be the same, "I'm fine. Have a bright day."
I knew what his reply was going to be every time, 30 I would still ask. It 31 me of how lucky me that even in his situation of being homeless, he was so cheerful. He 32 me how lucky I was, a single mother of four kids, with a good job to provide for them.
Then one day I was called into my boss's office and was told that I was due to the 33 weak economy (经济). A feeling of worry filled my mind immediately, and for the rest of that day all I could think about was "how am I going to 34 my family, and how am I going to pay rent?”
That day I was very sad and upset on my way home. I 35 forgot to prepare some coins for the homeless man as usual. As I waited for the red light to turn, he walked over with a big smile and asked, "How is everything going?" I told him I lost my job and felt really bad. “OK,I will 36 you a dollar today. Tomorrow will be another day," said the man.
I was deeply 37 and burst into tears. I wanted to hug him! That day what the man handed me was more than a dollar bill. He taught me a 38 lesson. Whatever material things are taken from you, no one can take away your 38 to be joyful. Tomorrow will be a bright 39 day and full of 40.
26.A.happy B.shy C.nervous D.careful
27.A.time B.food C.change D.water
28.A.pity B.pain C.anger D.joy
29.A.demand B.answer C.view D.reason
30.A.but B.for C.or D.so
31.A.satisfied B.frightened C.disappointed D.amazed
https://www.doczj.com/doc/f78189332.html,rmed B.advised C.reminded D.warned
33.A.fired B.examined C.questioned D.invited
34.A.miss B.support C.trust D.check
35.A.still B.once C.even D.always
36.A.charge B.find C.show D.give
37.A.moved B.hurt C.lost D.relaxed
38.A.terrible B.valuable C.hard D.strange
39.A.cost B.secret C.stress D.choice
40.A.doubt B.regre C.hope D.praise
三、阅读理解（共20小题，40分。每小题2分）
第一节：阅读下面短文，从各题A、B、C、D四个选项中，选出最佳答案。
A
Sunahine High School
Eco-Central
This website is all about looking after the Earth. There are facts about different animals, as well as information about forests, deserts and oceans: You can upload your own videos onto the site for everyone to see.
Teen Press
This is one of the best sites on the web for teenagers who love writing. You can share your work with others, and there are message boards where you can chat about things that are important to you.
Channel Twenty
On this site you can watch a daily news program and search for information about big news stories. There are also videos on different subjects, articles about famous bands, games and competitions, Inside-the-cover
Finding out about your favorite writers is easy on this site. There are lots of interesting articles and information about the latest books. You can read blogs by well-known writers and post questions to them. And you are likely to get replies from them.
Tune-in
There are millions of songs on this website for you to download or listen to online. You can save your favorite songs in your own list. If you're in a band, you can record your music and upload it. The website is large, but the menus are easy to use.
Science Zone
There's lots of information on this site about maths, chemistry and biology. You can visit some of the world's most famous museums, or watch wildlife via webcams. There are also some very cool games, such as Save the Planet.
41.TeenPress is a website for teenagers who
A.enjoy writing
B.care about the Earth
C.like watching the news
D.are interested in music
42.On Inside-the-cover,you can ________.
A.take writing classes
B.share your articles
C.iearm about the latest books
D.answer the writers'questions
43.If you like visiting online museums, which website is best for you?
A.EcoCentral.
B.ScienceZone.
C.Tune-in.
D.ChannelTwenty.
44.The author writes the passage to
A.introduce websites to teenagers
B.teach teenagers to design websites
C.encourage teenagers to create websites
https://www.doczj.com/doc/f78189332.html,pare different websites for teenagers
B
How to survive in the jungle
When you're in the jungle (丛林),you need to leave all your mobile phone, your favorite coffee
and your chocolate bars at home. When you're in the jungle, you need only four things-water, food, shelter, and fire. You can find all of these easily, but you must know what to look for.
Let's start with water. Even though there's a lot of water in the jungle, you may not find it Insects can also be a good sign, because they usually build their nests near water. However, don't only look for rivers. You can also find water in some plants such as roots and palm trees.
You can usually find a lot of food in the jungle, but you must be happy to eat things you wouldn't normally want to, for example, insects. However, you need to know the difference between those you can eat and those that are poisonous, so start reading about them now!
For cooking and for warmth, collect dry firewood, leaves, and grass. Then make fire using dry sticks-take a box of matches or a lighter with you!
The type of shelter you need depends on the weather and the kind of animals in the jungle.
Some insects can be very dangerous, so protect yourself against bites .If you don't have any insect repellent(驱虫剂)，try putting mud on your skin.
Of course, if you're lost in the jungle and want to get home again, the sun and stars can help you find your way.
45.If you adventure in the jungle, you should bring__________
A.chocolate bars
B.coffee
C.a mobile phone
D.a box of matches
46.According to Paragraph 2, people go after insects and birds for ________
A.food
B.fire
C.water
D.shelter
47.Which of the following is the writer's advice?
A.Leaming about what food is safe.
B.Protecting the skin from sunlight.
C.Predicting the weather by the sun and stars.
D.Collecting leaves to build a place to live in.
48.Where is the passage most probably from?
A.A business newspaper.
B.A health guide.
C.A travel magazine.
D.A science jourmal.
C
Is traffic a big problem where you live? Increased cycling may be the answer. Where are the best
places to live and cycle? A new report lists the best bike-friendly cities around the world.
Top of the list is Amsterdam, the bike capital of the world. An incredible 40% of all traffic movements are by bicycle. There's an extensive network of safe, fast and comfortable cycle routes. Copenhagen, the city of bikes, is a city where 32% of workers cycle to work because it's fast and easy. Berlin is another European city that's great for cycling. The city has about 80 kilometers of bike lanes, and 50 kilometers of pavement paths. Cycling accounts for 12% of total street traffic. Barcelona has been praised for its cycle service “Bicing”. This was introduced in March 2007.
It's a bicycle service that allows users to take bicycles from any of the 100 stations spread around the city. Later, they can leave them at any other bike station inside the urban area of the city. The city has created a "green ring" that surrounds the city area of Barcelona with a bike path. There are 3,250 parking spaces for bikes at street level at present. Barcelona City is also building a new underground car park for bicycles.
The UK has its cycle-friendly cities too. Bristol is the birthplace of “Sustrans”-the cycle-route charity which was formed 30 years ago. One of their projects was turning an old rail line between Bristol and Bath into a bike route. Other bike-friendly cities in the UK include Cambridge and York Cambridge is an old city but has still managed to build good cycle infrastructure (基础设施），and cyclists are considered at every stage of any new developments.
Bicycle is a most popular means of transportation in China. Nowadays, riding a bicycle is also a good way to support low-carbon living. Beijing can be one of the best bike-friendly cities in China. There are many riding routes in Beijing for outdoor-lovers to explore. Cyclists can get close enough to experience the history and culture of Beijing, including the Forbidden City, Drum Tower, the Water Cube, the Bird's Nest, Hutong etc.
49.In Amsterdam, traffic movements by bicycle account for
A.80%
B.40%
C.32%
D.12%
50.What do we know about "Bicing" in Barcelona?
A.There are 100 bike stations spread around the city.
B.Cyclists can leave their bikes anywhere in the city.
C.There were 3,250 parking spaces for bikes in 2007.
D.Underground bike parking stations are everywhere.
51.A rail line was changed to a bike route in
A.Beijing
B.Cambridge
C.York
D.Bristol
52.What is the passage mainly about?
A.The history of cycling.
B.The best cities for cycling.
C.The development of cycling.
D.The rules for cycling.
D
The woman was terrified. What could she do? She dialed 999.The emergency call operatd
线员) Robert Naylor answered the call immediately.
Her voice suddenly got louder. "It's moving!" she screamed.
"What is it that's moving?" Robert asked calmly.
“A spider(蜘妹)!”the woman yelled back at him.
Robert believes that a significant number of the calls he answers are not emergencies. The actual figure across the country is close to 75%.
Firstly, there are "silent calls". The emergency number is dialed, but when an operator answers, no one actually speaks. Often it's a small child or even a pet, who has been playing with a phone and has accidentally rung the emergency number. More commonly these days, they are pocket calls from mobile phones. "We sometimes hear some odd conversations!" Robert says. "But we have to listen to decide whether it's a real emergency or not”.
Then there are "joke calls", often from teenagers. An operator answers the phone and the caller immediately hangs up. Robert believes these are declining, as there are far fewer public payphones these days." “People are less tempted to make a call when they're doing it from their own mobile phone and they know we have their number!"
The police always follow up both types of call and there is often no other way than visiting the address where the call came from. It's a huge waste of money; the average cost of responding a silent or joke call is around ￡250.
The vast majority of the non-emergency calls, though, are like those from the woman above.
A situation like his isn't an emergency, at least not one that people like Robert are meant to be dealing with. But this example is far from the worst that people like Robert experience all over the world on a daily basis. What do you think of the following?
--A teenage girl in America called the police because her parents had decorated her room and she didn't like the color.
--A mother in Italy rang the emergency services when her 16-year-old son refused to get out of bed --A Brazilian teenage boy rang and asked the police to remove a video of him from YouTube. In the video, the boy was falling of his bike. He told the police it was "really embarrassing".
There are many other examples, from complaints about the wrong pizza delivery to people who want to know today's date. And most of these are from adults. These calls waste more than time and money. "If someone makes a joke call and the police manage to find them, then they can expect a fine of up to ￡5,000 and, in some cases, a prison sentence, "wams Robert." But for people whose emergencies aren't really serious, we simply try to deal with their calls as quickly as possible," he continues. "The person often quickly realizes their situation isn't really an emergency and ends up apologizing for calling us. But if someone refuses to listen, then we have to hang up. Someone with
a real emergency is probably waiting to speak to us.”
53.The beginning of the passage ______.
A.starts a story
B.introduces the topic
C.lists questions
D.raises an argument
54.What does the underlined word "“declining"probably mean?
A.Losing importance.
B.Turning worse.
C.Getting useless.
D.Becoming less.
55.Why are there so many non-emergency calls?
A.Operators give excellent service.
B.Callers do not take any responsibilities.
C.Dealing with non-emergency calls costs little.
D.Many do not consider it an improper behavior.
56.Which of the following is the best title for this passage?
A.Who is to blame?
B.Types of call
C.Is it an emergency?
D.Emergency service
第二节：阅读下面短文和问题，根据短文内容和每小题后的具体要求，在答题卡相应题号后的横线上写下相关信息，完成对该问题的回答。答语要意思清楚，结构正确，书写工整。
It might surprise you that Tejana music did not start either in Texas or in Mexico, but in Europe. It all began with the polka. This was a folk dance from Bohemia. It was for young lovers, and so was very lively. It was made up of a hop and three short steps, and the music that went with it had a marked beat. The polka appeared in Paris in about 1843, and immediately became a great success. it quickly spread throughout Europe. Eventually even serious musicians such as Smetana and Dvorak used its beats in their work. It traveled east to the Russian court at St. Petersburg, and as far west as the new world. German introduced the polka and its music to Texas, where once again it became a huge popular success.
It was there on the US-Mexican border that local musicians started to mix the European polka with Mexican mariachi music. Mariachi music was traditionally played at weddings in Mexico, and it is possible that that is how it got its name. Mariachi might well be a Spanish version of the French word for marriage. Soon the pleasant European accordions (手风琴) mixed with the Mexican bass guitar to produce a completely new and very unusual type of music. This music acquired two different names: "Tejana" in the United States and "Nortena” in Mexico.
For decades Tejana music did not go beyond the dance halls and popular gatherings of it birthplace. It was not until about seventy years after its appearance that Tejana music began to spread widely. Then a young Mexican-American singer, "Selena”, made it popular throughout the United States, and in other countries too.
In the hundred years since its birth Tejana music has suffered great changes. The accordion still there, but the electric guitar has replaced the Mexican bass. The latest Tejana/Nortena hits more elements of US country and western and rock, as well as Colombian cumbia. The unique musical
form that began with a European folk dance continues to develop and grow in popularity.
57.According to the passage, what was a polka? (不多于三个单词)
58.In what occasion (场合）was Mexican mariachi music traditionally played?(不多于两个单词)
59.When did Tejana music begin to spread widely? (不多于六个单词)
60.What does the passage mainly talk about? (不多于五个单词)
四、书面表达（共1小题，20分)
根据题目所提出的具体要求，在答题卡上写出一篇连贯完整的短文。词数不少于60。
假如你是李华，你们学校将为留学生举办“中国文化节”活动。请参考下表提供的信
写邮件告诉交换生Jack此次活动的相关安排，邀请他参加并说明理由。
短文的开头已为你写好，不计入总词数。
Time: January 18th
Place: the school hall
Activities: learn to play Chinese instrumental music;
see an exhibition of Chinese paintings;
Dear Jack,
I’m writing to tell you that our school will hold a Chinese Culture Day for the international students.
________________________________________________________________________________ Best regards
Li Hua
Key:
26-40 ACDBA DCABC DABDC
41-56 ACBAD CACBA DBBDDC
57.A folk dance.
58.At weddings.
59.About seventy years after its appearance.
60.The development of Tejana music.
One possible version:
Dear Jack,
I'm writing to tell you that our school will hold a Chinese Culture Day for the international students. You are invited to different activities in the school hall on January 18th.You can learn to play Chinese instrumental music, see an exhibition of Chinese paintings, or attend a theme lecture on Chinese traditional festivals and customs. I'm sure these activities will give you a better understanding of Chinese culture.
I know you're interested in our traditional culture. So why not come and enjoy the day? If you need my company, I'd be glad to go with you.
Best regards,
Li Hua
机密★本科目考试启用前 2020年北京市第一次普通高中学业水平合格性考试 生物试卷 考生须知1．考生要认真填写考场号和座位序号。 2．本试卷共8页，分为两个部分。第一部分为选择题，35个小题（共50分）； 第二部分为非选择题，8个小题（共50分）。 3．试题所有答案必须填涂或书写在答题卡上，在试卷上作答无效。第一部分必须用2B铅笔作答；第二部分必须用黑色字迹的签字笔作答。 4．考试结束后，考生应将试卷和答题卡放在桌面上，待监考员收回。 生物试卷第1页（共8页） 第一部分选择题（1~20题每小题1分，21~35题每小题2分，共50分） 下列各题均有四个选项，其中只有一个是符合题意要求的。 1．DNA完全水解后，得到的化学物质是 A．氨基酸、葡萄糖、含氮碱基B．核糖、含氮碱基、磷酸 C．氨基酸、核苷酸、葡萄糖D．脱氧核糖、含氮碱基、磷酸 2．下图是三个相邻的植物细胞之间水分流动方向示意图。图中三个细胞的细胞液浓度关系是A．甲>乙>丙B．甲<乙<丙 C．甲>乙，乙<丙D．甲<乙，乙>丙 3．在封闭的温室内栽种农作物，下列不能 ．． 提高作物产量的措施是 A．降低室内CO2浓度B．保持合理的昼夜温差 C．增加光照强度D．适当延长光照时间 4．下列有关细胞体积的叙述中，不正确 ．．． 的是 A．与原核细胞相比，真核细胞体积一般较大 B．细胞体积越小，其表面积与体积比值越大 C．生物体体积越大，其细胞体积也越大 D．细胞体积小，利于提高物质交换效率 5．下列关于细胞周期的叙述中，正确的是 A．抑制DNA的合成，细胞将停留在分裂期 B．细胞周期分为前期、中期、后期和末期 C．细胞分裂间期为细胞分裂期提供物质基础 D．成熟的生殖细胞产生后立即进入下一个细胞周期
绝密★启用前 北京市2020年普通高中第一次学业水平合格性考试 化学试题 (解析版) 1．考生要认真填写考场号和座位序号。 2．本试卷共8页，分为两个部分。第一部分为选择题，25个小题（共50分）；第 二部分为非选择题，9个小题（共50分）。 3．试题所有答案必须填涂或书写在答题卡上，在试卷上作答无效。第一部分必须 用2B铅笔作答；第二部分必须用黑色字迹的签字笔作答。 4．考试结束后，考生须将试卷和答题卡放在桌面上，待监考员收回。 可能用到的相对原子质量：H 1 He 4 C 12 N 14 O 16 Na 23 Cl 35.5 As 75 第一部分选择题（共50分） 在下列各题的4个选项中，只有1个选项符合题意。（每小题2分，共50分） 1.在庆祝中华人民共和国成立70周年活动中用到多种材料。下列所示材料中，其 主要成分属于合成高分子材料的是 A. 花坛钢架——铁合金 B. 飞机外壳——铝合金 C. 通讯光纤——二氧化硅 D. 飞机轮胎——合成橡胶 【答案】D 【解析】 【详解】A．铁合金是金属材料,不是有机合成高分子材料,故A错误；
B．铝合金是金属材料,不是有机合成高分子材料,故B错误； C．二氧化硅属于非金属氧化物,不是有机合成高分子材料,故C错误； D．合成橡胶属于有机合成高分子材料,故D正确； 故选D。 【点睛】解答本题要注意常见材料的分类,材料包括金属材料、无机非金属材料、有机合成材料、复合材料等。要注意金属材料包括铁、铝、铜等纯金属和合金；有机合成材料一般包括塑料、合成橡胶、合成纤维等。 2.下列物质中,不属于 ．．．电解质的是 A. Cu B. K 2SO 4 C. HNO 3 D. NaOH 【答案】A 【解析】 【详解】A．铜是单质,不属于电解质,故A选； B．硫酸钾溶于水能导电,属于电解质,故B不选； C．硝酸溶于水能导电,属于电解质,故C不选； D．氢氧化钠溶于水能导电,属于电解质,故D不选； 故选A。 【点睛】理解电解质的概念是解题的关键,要注意电解质一定是化合物,单质、混合物既不是电解质,也不是非电解质。 3.下列金属中,通常用电解法冶炼的是 A. Na B. Fe C. Hg D. Ag 【答案】A 【解析】 【分析】 炼活泼金属K、Ca、Na、Mg、Al,一般用电解熔融的氯化物(Al是电解熔融的Al 2O 3 ) 制得；冶炼较不活泼的金属Zn、Fe、Sn、Pb、Cu,常用还原剂有(C、CO、H 2 等)；冶炼不活泼的金属Hg、Ag用加热分解氧化物的方法制得,据此分析解答。 【详解】A．Na的性质很活泼,用电解熔融的氯化物的方法冶炼,故A符合题意；B．Fe用热还原法冶炼,故B不符合题意；
江西省2019年中等学校招生考试 说明：1．全卷满分120分，考试时间120分钟。 2请将答案写在答题卡上，否则不给分。 一、听力测试（27分） 现在是试听时间。请听一段对话，然后回答问题。 What is the boy going to buy? A. Some juice B Some oranges C. Some apples 答案是C。 A）请听下面8段对话。每段对话后有小题，从题中所给的A、B、C三个选项中选出最佳连项，并在答题卡上将该项涂黑。听完每段对话后，你都将有10秒钟的时间回答有关小题和阅读下一小题。每段对话读两遍。（每小题1分） 1. What is Jane reading? A. A newspaper. B. A magazine. C. A book. 2 Who has long hair in the picture? A. Mary. B. Lisa. C. Lisa’s friend. 3. When will they meet for tea tomorrow? A At 2:30 pm. B. At 3:30 pm. C. At 4:30 pm. 4. Where does Rick come from? A. The USA. B. Canada. C. The UK. 5. Why was Peter very happy? A. Because he passed his exam. B. Because he had a party for Mike. C. Because it was his birthday that day. 6. How did the girl go to school today? A. By bus. B. By bike. C. On foot. 7. How long did the man sleep last night? A. For 6 hours. B. For 4 hours. C. For 3 hours. 8. What does the girl mean? A. She will play football. B. She won’t play football. C. She is strong enough to play football. B）请听下面5段对话或独白。每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并在答题卡上将该项涂黑。听每段对话或独白前，你将有时间阅
一、选择题 1．下列文学常识表述有误的一项是（） A．东晋诗人陶潜自号“五柳先生”，曾任彭泽令，向往田园生活。《归去来兮辞》表现了他归隐田园时的欣喜之情。 B．《窦娥冤》是元代戏曲家关汉卿的代表作。蒙冤遭难的窦娥在临刑前立下三桩警愿，体现了被压迫者的反抗精神。 C．现代著名散文家朱自清在《荷塘月色》一文中，用清淡优美的文字描写了空灵月光、朦胧青雾之下的静谧荷塘。 D．巴尔扎克是19世纪法国浪漫主义文学的杰出代表，他的小说《人间喜剧》反映了社会剧烈变革时期的法国生活。 2．下列对《边城》相关故事内容的表述，不正确的一项是（） A．翠翠在端午日看龙舟比赛找不到爷爷，被傩送派人送回。她得知实情，消除了对傩送的误会并暗生情愫。B．选渡船代表娶翠翠，选碾坊代表娶中寨人的闺女，天保在选择渡船和碾坊时犹豫不决，索性一走了之。C．性格豪爽的船总顺顺认为天保的死与翠翠有关，对前来打探消息的老船夫心存不满，回应得较为冷淡。D．爷爷在白塔倒塌之夜去世，翠翠继承了爷爷的渡船，守候在碧溪岨渡口，继续摆渡，等待傩送归来。 3．鲁迅小说中对人物眼睛的描写极为精当，下列相关解说不正确的一项是（） A．“我大哥引了一个老头子，慢慢走来；他满眼凶光，怕我看出，只是低头向着地，从眼镜横边暗暗看我”。老头子的眼神让狂人感到恐惧，也反映出狂人多疑的心理。（《狂人日记》） B．“先前的紫色的圆脸，已经变作灰黄，而且加上了很深的皱纹；眼睛也像他父亲一样，周围都肿得通红……”。从闰土眼睛的变化可以看出他历经人生困苦，饱受磨难。（《故乡》） C．“脸上瘦削不堪，黄中带黑，而且消尽了先前悲哀的神色，仿佛是木刻似的；只有那眼珠间或一轮，还可以表示她是一个活物”。祥林嫂呆滞的眼神让人觉着她屡经变故，看开世事。（《祝福》） D．“而这回他又看见从来没有见过的更可怕的眼睛了，又钝又锋利，不但已经咀嚼了他的话，并且还要咀嚼他皮肉以外的东西，永是不远不近的跟他走”。众人围观的目光让阿Q感受到了死亡的威胁，内心充满绝望。（《阿Q正传》） 第II卷（非选择题） 请点击修改第II卷的文字说明 评卷人得分 二、文言文阅读 阅读《陈情表》，完成下面小题。 臣密言：臣以险衅，夙遭闵凶。生孩六月，慈父见背；行年四岁，舅夺母志。祖母刘悯臣孤弱，躬亲抚养。臣少多疾病，九岁不行，零丁孤苦，至于成立。既无伯叔，终鲜兄弟，门衰祚薄，晚有儿息。外无期功强近之亲，内无应门五尺之僮，茕茕孑立，形影相吊。而刘夙婴疾病，常在床蓐，臣侍汤药，未曾废离。
海淀区 2020年北京市第一次普通高中学业水平合格性考试 化 学试卷 考 生 须 知 1．考生要认真填写考场号和座位序号。 2．本试卷共8页，分为两个部分。第一部分为选择题，25个小题（共50分）； 第二部分为非选择题，9个小题（共50分）。 3．试题所有答案必须填涂或书写在答题卡上，在试卷上作答无效。第一部分必须用2B铅笔作答；第二部分必须用黑色字迹的签字笔作答。 4．考试结束后，考生须将试卷和答题卡放在桌面上，待监考员收回。 可能用到的相对原子质量：H 1 C 12 O 16 Na 23 Cl 35.5 Fe 56 第一部分选择题（共50分） 在下列各题的4个选项中，只有1个选项符合题意。（每小题2分，共50分） 1．对抗疫情离不开化学。下列抗疫物资中，主要成分不属于 ．．．有机物的是 A．医用酒精B．塑料护目镜C．84消毒液D．医用橡胶手套 2 A．CH4B．C2H4C．CH3Cl D．C2H5OH 3．下列物质中，属于电解质的是 A．Fe B．NaCl C．稀盐酸D．Na2SO4溶液4．当光束通过下列分散系时，能观察到丁达尔效应的是 A．KCl溶液B．Fe(OH)3胶体C．KOH溶液D．Na2SO4溶液5．下列化合物中，含离子键的是 A．H2O B．KCl C．Cl2D．CH4 6．下列元素的原子半径最大的是 A．Na B．Al C．Si D．Cl 化学试卷第1页（共8页）
7．下列关于物质分类的叙述中，不正确 ．．． 的是 A． H 2 SO4属于酸B．Ba(OH)2属于碱 C．SO2属于氧化物D．氨水属于纯净物 8．下列关于化学反应与能量的说法中，不正确 ．．．的是 A．Al与盐酸的反应属于放热反应 B．化学反应总是伴随着能量的变化 C．当反应物的总能量高于生成物的总能量时，反应向环境放出能量 D．Ba(OH)2·8H2O与NH4Cl的反应属于放热反应 9．下列关于氨气性质的描述中，不正确 ．．．的是 A．黄绿色气体B．有刺激性气味 C．相同条件下密度比空气的小D．极易溶于水 10．2020年5月1日起，《北京市生活垃圾管理条例》正式施行。下列可回收物中，主要成分属于合金的是 A．塑料瓶B．废报纸C．罐头盒D．旧衣服 11 A．氯气B．氯水 C．氯化钠D．氯化氢 12．一定温度下，在恒容密闭容器中发生反应：2NO2(g) N2O4 (g)。当NO2、N2O4 的浓度不再变化时，下列说法不正确 ．．．的是 A．NO2全部转化为N2O4 B．该反应已达化学平衡状态 C．正、逆反应速率相等，但不等于零 D．容器中气体颜色不再发生变化 13．稀土被称为“工业黄金”和“新材料之母”，稀土资源在我国有丰富的储量。其中钇（Y） 是重稀土元素的代表。下列关于的说法中，不．正确 ．．的是 A．质子数为39 B．中子数为50 C．质量数为128 D．核外电子数为39 化学试卷第2页（共8页） Y 39 89
第Ⅰ卷（选择题共42分） 一、完形填空（共10小题，满分10分） 阅读下面短文，从每小题A、B、C、D中选出一个能填入文章中相应空白处的最佳答案。 For thousands of years, people farmed the land. They grew fruits and vegetables. They hunted and fished for meat. They 1cloth, dyes(染料) and paper from plants. They used stone and metal for weapons and tools. People progressed to making machines powered 2water and steam(蒸汽), and even later, by coal, oil, and petrol. Large cities were built. Factories 3of machines created jobs in the cities for thousands of people. The Industrial Revolution(工业革命) changed the lives of many people because, for the first time, more people lived in cities than on 4. Companies built power plants(工厂) to make 5to run the machines, factories and cities. People did not realize these activities were 6the Earth. They didn’t realize how 7oil, gas, coal and minerals were being used up. 8cities grew bigger and spread across the land, plants and animals began to disappear. Their nature homes were destroyed(破坏) as people moved into new places. As time passed, people began to 9the need to protect the Earth and its natural resources(资源). They saw that plants and animals needed protection, so they wouldn’t disappear forever. People joined together to tell 10around the world to conserve(节约) our natural resources and care for the Earth. And so, Earth Day was born. Each year, more and more people take part in Earth Day. What can you do to help? 1．A．separated B．washed C．made D．mixed
2019年上海市初中毕业学业考试 英语试卷 Part 1 Listening（第一部分听力） 1.Listening comprehension（听力理解）（共30分） A.Listen and choose the right picture（根据你听到的内容，选出相应的图片）（6分） A B C D E F G H 1.2.3.4.5.6. B.Listen to the dialogue and choose the best answer to the question you hear（根据你听到的对话和问题，选出最恰当的答案）（8分） 7.A）A sportsman.B）A student.C）A teacher.D）A doctor 8.A）History.B）Physics.C）Maths.D）Chemistry 9.A）Ten years agoB）Ten months ago. C）Two years ago.D）Two months ago 10.A）To give some lectures.B）To meet new friends. C）To complete his work.D）To improve his memory. 11.A）By getting books.B）By moving the shelf. C）By picking flowers.D）By watching the door. 12.A）At the restaurant.B）In the kitchen. C）At the supermarket.D）In the garden. 13.A）The Internet.B）The subjects. C）The price.D）The levels. 14.A）He's afraid his son will fall asleep in writing lessons. B）He thinks the programmes will take too much time. C）He's glad that reading before sleep is his son's habit. D）He believes after-school lessons are necessary to attend.
2019年北京市第一次普通高中学业水平合格性考试 生物 考生须知1.考生要认真填写考场号和座位序号。 2.本试卷共8页，分为两个部分。第一部分为选择题，30个小题(共45分)；第二部分为非选择题,8个小题(共55分)。 3.试题所有答案必须填涂或书写在答题卡上，在试卷上作答无效。第一部分必须用2B铅笔作答；第二部分必须用黑色字迹的签字笔作答。 4.考试结束后，考生应将试卷和答题卡放在桌面上，待监考员收回。 下列各题均有四个选项，其中只有一个是符合题意要求的。 1.一般情况下，活细胞中含量最多的化合物是 A.蛋白质 B.水 C.淀粉 D.糖原 2.烫发时，先用还原剂使头发角蛋白的二硫键断裂，再用卷发器将头发固定形状，最后用氧化剂使角蛋白在新的位置形成二硫键。这一过程改变了角蛋白的 A.空间结构 B.氨基酸种类 C.氨基酸数目 D.氨基酸排列顺序 3.右图是三个相邻的植物细胞之间水分流动方向示意图。图中三个细胞的细胞液浓度关系是 A.甲>乙>丙 B.甲<乙<丙 C.甲>乙，乙<丙 D.甲<乙，乙>丙 4.下列对酶的叙述中，正确的是 A.所有的酶都是蛋白质 B.催化生化反应前后酶的性质发生改变 C.高温使酶的分子结构破坏而失去活性 D.酶与无机催化剂的催化效率相同 5.酵母菌进行有氧呼吸和无氧呼吸的共同终产物是 A. C02 B. H20 C.酒精 D.乳酸 6.组成染色体和染色质的主要物质是 A.蛋白质和DNA B. DNA和RNA C.蛋白质和RNA D. DNA和脂质 7.下列关于细胞分裂、分化、衰老和死亡的叙述中，正确的是 A.所有体细胞都不断地进行细胞分裂 B.细胞分化使各种细胞的遗传物质产生差异 C.细胞分化仅发生于早期胚胎形成的过程中 D.细胞的衰老和凋亡是正常的生命现象 8.肺炎双球菌转化实验中，使R型细菌转化为S型细菌的转化因子是 A.英膜多糖 B.蛋白质
2019年北京市第二次普通高中学业水平合格性考试 化学试卷 考生须知1．考生要认真填写考场号和座位序号。 2．本试卷共8页，分为两个部分。第一部分为选择题，25个小题（共50分）； 第二部分为非选择题，9个小题（共50分）。 3．试题所有答案必须填涂或书写在答题卡上，在试卷上作答无效。第一部分必须用2B铅笔作答；第二部分必须用黑色字迹的签字笔作答。 4．考试结束后，考生须将试卷和答题卡放在桌面上，待监考员收回。 可能用到的相对原子质量：C 12 N 14 O 16 Cl 35.5K39Fe 56 第一部分选择题（共50分） 在下列各题的4个选项中，只有1个选项符合题意。（每小题2分，共50分） 1．即将投入使用的北京大兴国际机场用到多种材料。下列所示部分材料中，其主要成分属于有机化合物的是 A．钢架——铁 B．铝制蜂窝板——铝 C．橡胶缓冲垫——橡胶 D．光导纤维——二氧化硅 2．下列物质中，属于电解质的是 A．Cu B．K2SO4 C．MgCl2溶液D．NaOH溶液 3．下列物质中，通常不用 ．．电解法冶炼的是 A．Na B．Al C．Mg D．Fe 4．当光束通过下列分散系时，能观察到丁达尔效应的是 A．KCl溶液B．蔗糖溶液C．Fe(OH)3胶体D．NaOH溶液5．下列分子中，含碳碳双键的是 A．C2H4B．C2H6C．C2H5Br D．C2H6O 6．下列元素的原子半径最大的是 化学试卷答案及评分参考第1页（共2页）
A．Na B．Al C．Si D．Cl 7．下列化合物中，含共价键的是 A．CO2B．Na2O C．KCl D．MgCl2 8．下列关于物质分类的叙述中，不正确 ．．．的是 A．硝酸属于酸B．液氯属于纯净物 C．碳酸钠属于碱D．二氧化硫属于氧化物 9．（2019年第二次合格考）下列关于化学反应与能量的说法中，不．正确 ．．的是A．化学反应必然伴随发生能量变化 B．Na与H2O的反应属于放热反应 C．Ba(OH)2·8H 2O与NH4Cl的反应属于放热反应 D．化学变化中的能量变化主要是由化学键变化引起的 10．下列各组混合物中，能用分液漏斗进行分离的是 A．水和酒精B．水和植物油C．碘和四氯化碳D．汽油和植物油11．2022年2月将举办中国历史上第一次冬季奥运会，滑雪是冬奥会的重点比赛项目。 下列滑雪用品涉及的材料中，不属于 ．．．高分子的是 A．滑雪杖——合金 B．滑雪板——聚乙烯 C．滑雪头盔——聚酯硬塑料 D．防护镜——聚甲基丙烯酸甲酯 12．下列关于氯气性质的描述中，不正确 ．．．的是 A．黄绿色气体B．能溶于水 C．相同条件下密度比空气的小D．能与氢气反应 13．（2019年第二次合格考）一定温度下，在恒容密闭容器中发生反应： H2 (g) ＋I2 (g) 2HI (g)。当H2、I2、HI的浓度不再变化时，下列说法正确的是A．H2和I2全部转化为HI B．该反应已达化学平衡状态 C．H2、I2、HI的浓度一定相等 D．正、逆反应速率相等且等于零 化学试卷答案及评分参考第2页（共2页）
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2019年北京市第一次普通高中学业水平合格性考试
文试卷 语 号序位座 16分）一、文言文阅读（ ，完成阅读《兰亭集序》1-5题。至，少长咸永和九年，岁在癸丑，暮春之初，会于会稽山阴之兰亭，修禊事也。群贤毕．．。集。此地有崇山峻岭，茂林修竹，又有清流激湍，映带左右，引以为流觞曲水，列坐其次 ．．号 虽无丝竹管弦之盛，一觞一咏，亦足以畅叙幽情。．场考极。仰观宇宙之大，俯察品类之盛，所以游目骋怀，足以是日也，天朗气清，惠风和畅．． 视听之娱，信可乐也。．，俯仰一世。或取诸怀抱，悟言一室之内；或因寄所托，放浪形骸之外。虽 夫人之相与．既倦，不知老之将至；及其所之趣舍万殊，静躁不同，当其欣于所遇，暂得于己，快然自足，．．况修短随化，犹不能不以之兴怀，俯仰之间，情随事迁，感慨系之矣。向之所欣，已为陈迹， ”岂不痛哉！终期于尽！古人云：“死生亦大矣。 每览昔人兴 感之由，若合一契，未尝不临文嗟悼，不能喻之于怀。固知一死生为虚诞， 妄作。后之视今，亦犹今之视昔。悲夫！故列叙时人，录其所述，虽世殊事异， 所齐彭殇为． 以兴怀，其致一也。后之览者，亦将有感于斯文。 分）．下列语句中加点词的解释错误1的一项是 （3．． 毕：全部A .群贤毕至．.列坐其次 B 次：旁边 ．C .信可乐也 信：任凭 ．D .人之相与 与：交往 ．2．下列语句中加点词意义和用法相同的一项是（3分） A .会于会稽山阴之兰亭 当其欣于所遇 ．． B .亦足以畅叙幽情 足以
极视听之娱．．文案大全． 实用文档 C.仰观宇宙之大及其所之既倦．． D.引以为流觞曲水齐彭殇为妄作．．3．下列句子括号中，补充的省略内容不正确的一项是（3分）．．．A．（群贤）会于会稽山阴之兰亭 B．映带（在兰亭的）左右 C．引（清缓溪流）以为流觞曲水 D．每览昔人（对生死）兴感之由 4．对下面两句话的意思，理解都不正确的一项是（3分）．．．①况修短随化，终期于尽②固知一死生为虚诞 A．①何况寿命长短随造化而定，最后一切都化为乌有。 ②本来知道无论是生还是死其实都是不可信的。 B．①何况寿命长短是自然早就安排的，最后一切都会一同消失。 ②本来知道把死和生等同起来的说法是不真实的。 C．①何况寿命长短随造化而定，最后一切都化为乌有。 ②本来知道把死和生等同起来的说法是不真实的。 D．①何况寿命长短是自然早就安排的，最后一切都会一同消失。 ②本来知道无论是生还是死其实都是不可信的。 5．用原文语句，将下面一段分析文字补充完整。（4分） 本文第一、二段描述了王羲之等人集会的乐趣。这里的乐趣，既有“①，②” 的同道相逢，饮酒赋诗、畅叙幽情的快乐；也有在幽雅环境和“③，④”的宜人气候中，领悟美好自然的快乐。 二、文学常识与背诵默写（13分） 6．下列文学常识表述有误的一项是（3分）．．A．《诗经》是我国最早的诗歌总集，不少诗篇脍炙人口。其中《氓》因塑造了一个勤劳温柔却被遗弃的劳动妇女形象，让人印象深刻。B．白居易是唐代现实主义诗人，他的《旅夜书怀》描写了平野、星月的辽阔幽远之景， 抒写了诗人身世的辛酸和对国家命运的关切之情。 C．《包身工》是我国报告文学史上影响深远的作品，它讲述了包身工的悲惨遭遇，揭露并控诉了野蛮而残酷的包身工制度，有强烈的感染力。 D．契诃夫是俄国19世纪末批判现实主义大师，他在《装在套子里的人》中塑造了别里文案大全．实用文档 科夫这个封闭保守、扼杀一切新思想的“套中人”形象。 7．下列对《呐喊》相关故事内容的表述，不正确的一项是（3分）．．．A．《药》中的华老栓用革命者夏瑜的鲜血蘸成人血馒头为儿子治病，花掉了不少血汗钱。最终却没有治好小栓的病，只落得白发人送黑发人的结局。 B．《明天》中的单四嫂子为得病的宝儿四处求医，期盼着到了“明天”宝儿的病就能好。但是“明天”到来时，病魔却仍然无情地夺去了宝儿的生命。 C．《社戏》叙写了“我”和小伙伴们去南京看社戏的经历。结伴行船、船头看戏、月下归航等情节，是作者美好自然、意趣盎然的童年记忆。 D．《狂人日记》中的“狂人”，总觉得身边的人们想吃掉他。实际上“狂人”是觉醒的知识分子
2019-2020中考英语试题 注意事项：第Ⅰ卷为选择题，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；如需改动，用橡皮擦干净后，再选涂其他答案标号。答案写在试卷上无效。 第I卷（选择题共85分） I．听力测试 A）听录音，在每组句子中选出一个你所听到的句子。每个句子听一遍。（5分） 1. A. He ran to school today. B. I used to get up late. C. The bookstore is on the left. 2. A. So many products in the US are made in China. B. Is it really such a great invention? C. The special shoes were made for seeing in the dark. 3. A. Don’t use a flash in the museum. B. It might be Dick’s basketball. C. Can you see a girl reading at the door? 4. A. Do you like movies that can make you relaxed? B. You’re expected to be here by 9:00. C. Who scored the goal in the last match? 5. A. She came in without knocking on the door. B. What do you hope to do in the future? C. We are trying to save the earth. B）听录音，从每题A、B、C三幅图画中选出与听到的对话内容相符的一项。每段对话听两遍。（5分） 6. A. B. C.
2019年北京市第一次普通高中学业水平合格性考试 语文试卷 阅读《兰亭集序》，完成1-5题。 永和九年，岁在癸丑，暮春之初，会于．会稽山阴之兰亭，修禊事也。群贤毕．至，少长咸集。此地有崇山峻岭，茂林修竹，又有清流激湍，映带左右，引以为．流觞曲水，列坐其次．。虽无丝竹管弦之盛，一觞一咏，亦足以．畅叙幽情。 是日也，天朗气清，惠风和畅。仰观宇宙之．大，俯察品类之盛，所以游目骋怀，足以．极 视听之娱，信．可乐也。 夫人之相与．，俯仰一世。或取诸怀抱，悟言一室之内；或因寄所托，放浪形骸之外。虽趣舍万殊，静躁不同，当其欣于．所遇，暂得于己，快然自足，不知老之将至；及其所之．既倦，情随事迁，感慨系之矣。向之所欣，俯仰之间，已为陈迹，犹不能不以之兴怀，况修短随化，终期于尽！古人云：“死生亦大矣。”岂不痛哉！ 每览昔人兴感之由，若合一契，未尝不临文嗟悼，不能喻之于怀。固知一死生为虚诞，齐彭殇为．妄作。后之视今，亦犹今之视昔。悲夫！故列叙时人，录其所述，虽世殊事异，所以兴怀，其致一也。后之览者，亦将有感于斯文。 1．下列语句中加点词的解释错误．．的一项是（3分） A .群贤毕．至 毕：全部 B .列坐其次． 次：旁边 C .信．可乐也 信：任凭 D .人之相与． 与：交往 2．下列语句中加点词意义和用法相同的一项是（3分） A .会于．会稽山阴之兰亭 当其欣于．所遇 B .亦足以．畅叙幽情 足以．极视听之娱 考场 号 座 位 序 号
C.仰观宇宙之．大及其所之．既倦 D.引以为．流觞曲水齐彭殇为．妄作 3．下列句子括号中，补充的省略内容不正确 ．．．的一项是（3分） A．（群贤）会于会稽山阴之兰亭 B．映带（在兰亭的）左右 C．引（清缓溪流）以为流觞曲水 D．每览昔人（对生死）兴感之由 4．对下面两句话的意思，理解都不正确 ．．．的一项是（3分） ①况修短随化，终期于尽②固知一死生为虚诞 A．①何况寿命长短随造化而定，最后一切都化为乌有。 ②本来知道无论是生还是死其实都是不可信的。 B．①何况寿命长短是自然早就安排的，最后一切都会一同消失。 ②本来知道把死和生等同起来的说法是不真实的。 C．①何况寿命长短随造化而定，最后一切都化为乌有。 ②本来知道把死和生等同起来的说法是不真实的。 D．①何况寿命长短是自然早就安排的，最后一切都会一同消失。 ②本来知道无论是生还是死其实都是不可信的。 5．用原文语句，将下面一段分析文字补充完整。（4分） 本文第一、二段描述了王羲之等人集会的乐趣。这里的乐趣，既有“①，②”的同道相逢，饮酒赋诗、畅叙幽情的快乐；也有在幽雅环境和“③，④”的宜人气候中，领悟美好自然的快乐。 二、文学常识与背诵默写（13分） 6．下列文学常识表述有误 ．．的一项是（3分） A．《诗经》是我国最早的诗歌总集，不少诗篇脍炙人口。其中《氓》因塑造了一个勤劳温柔却被遗弃的劳动妇女形象，让人印象深刻。 B．白居易是唐代现实主义诗人，他的《旅夜书怀》描写了平野、星月的辽阔幽远之景，抒写了诗人身世的辛酸和对国家命运的关切之情。 C．《包身工》是我国报告文学史上影响深远的作品，它讲述了包身工的悲惨遭遇，揭露并控诉了野蛮而残酷的包身工制度，有强烈的感染力。 D．契诃夫是俄国19世纪末批判现实主义大师，他在《装在套子里的人》中塑造了别里
2021年北京市普通高中学业水平合格性考试 化学仿真模拟卷05 可能用到的相对原子质量：H 1 C 12 O 16 Mg 24 Cl 35.5 Zn 65 1．钧瓷是中国古代五大名瓷之一，以其独特的釉料及烧制方法而闻名于世。下列钧瓷的制作工艺中，主要发生了化学变化的是 【答案】D 【解析】烧炉的过程中有燃烧反应 2．甲醇不仅是重要的化工原料，还可用于制备车用燃料。甲醇属于 A．氧化物B．无机物C．有机化合物D．碱 【答案】C 【解析】含碳的化合物是有机物 3．盛装浓硫酸的试剂瓶上，最适合贴的图标是 A B C D 【答案】A 【解析】浓硫酸具有强的腐蚀性 4．电解质是一类在水溶液里或熔融状态下能够导电的化合物。下列物质属于电解质的是A．Zn B．NaOH C．稀HNO3D．K2SO4溶液 【答案】B 【解析】电解质必须是化合物 5．下列各组元素中，属于同一周期的是 A．H、Na B．N、Cl C．Mg、Si D．F、S
【答案】C 6．下列元素中，原子半径最大的是 A．F B．Cl C．Br D．I 【答案】D 7．下列有机物中，不属于 ．．．高分子化合物的是 A．油脂B．淀粉C．纤维素D．蛋白质 【答案】A 8．下列元素中，非金属性最强的是 A．Cl B．S C．P D．F 【答案】D 【解析】F的非金属性最强 9．下列化合物中，只含共价键的是 A．MgO B．CH4 C．NaCl D．NaOH 【答案】B 【解析】有活泼金属的一定有离子键 10．工业上常用电解法冶炼的金属是 A．Ag B．Cu C．Fe D．Al 【答案】D 11.在右图所示的原电池中，正极发生的反应是 A．2H+ + 2e－H 2↑B．Cu－2e－Cu2+ C．Cu2+ + 2e－Cu D．Zn－2e－Zn2+ 【答案】C 12．下列物质在一定条件下不能 ．．与乙烯发生加成反应的是 A．H2B．Br2C．HCl D．酸性KMnO4溶液 【答案】D 13实验室用锌与盐酸反应制取氢气，若其他条件不变，下列措施能使该反应速率增大的是A．降低温度B．用铁代替锌 C．增大盐酸浓度D．用锌粒代替锌粉 【答案】C 14一定条件下，在密闭容器中进行反应：N2(g) + 3H2(g) 2NH3(g)。当N2、H2、NH3的浓度不再改变时，下列说法正确的是 A．N2、H2完全转化为NH3B．N2、H2、NH3的浓度一定相等
2019-2020年中考英语试卷（word版含答案） 说明：本卷共有三大题，45小题·满分70分· 第一部分听力部分 一、听力(共15小题，满分25分) 第一节：听小对话，从A、B、C三个选项巾选出正确的选项，回答问题·(共5小题；每小题1分，满分5分) 1．Which season d oes Alan like best? A．Spring．B．Summer·C·Autumn． 2．Who did Peter go to see in Hainan? A．His parents．B．His friend．C．H is uncle． 3．How is the weather in New York? A·Rainy·B．Windy．C．Sunny． 4．What time d oes Dick get up on school days? A·At 6:15．B．At 7：00．C．At 7：30． 5·Where d oes the conversation probably happen? A·At home·B．In a shop．C．At school． 第二节：听长对话，从A、B、C三个选项中选出正确的选项，回答问题。(共5小题；每小题2分，满分10分) 听下面一段较长对话，回答6、7两个问题· 6．What’s the matter with Tony， A．H e has a toothache．B．H e has a stomachache．C．He has a fever． 7．How often shoul d Tony take the mcdicine? A·Once a day．B．Twice a day．C．Three times a day． 听下面一段较长对话，回答8--10三个问题． 8·How l ong d o the courses last? A．Six months．B．Ten months．C．Fifteen months． 9．Who is the grammar teacher? A．Ms．Miller．B．Ms．Green．C．Ms．Jackson． 10．How is the man probably going to English Study Center? A．By bike．B．On foot．C．By subway． 第三节：听下面三段语音留言．从A、B、C三个选项中选出正确的选项，回答问题。(共5小题；每小题2分，满分10分) 11．What is Mike going to d o this Saturday afternoon? A．See a movie．B．Have a class．C．Have a picnic． 12．Where will Mike meet his friends? A．At Coop Park．B．Outsid e the club．C．At the cincma． 13．How will Mike probably feel when he gets the message from Kay? A．He’II feel happy．B．He’Il feel sorry．C．He'll feel nervous． 14．Why d oes Mr．Brown say sorry to Mike in Message 3? A．Because he can’t give him the class． B．Because he can’t go on business． C．Because he can’t agree with Kay． 1 5．When will Mike meet Mr．Brown again?
考 生 须 知 1．考生要认真填写考场号和座位序号。 2．本试卷共分为两个部分。第一部分为选择题，25个小题（共50分）；第二部分为非选择题， 9个小题（共 50 分）。 3．试题所有答案必须填涂或书写在答题卡上，在试卷上作答无效。第一部分必须用2B铅笔作答；第二部分必须用黑色字迹的签字笔作答。 4．考试结束后，考生须将试卷和答题卡放在桌面上，待监考员收回。 第一部分选择题（共50分） 1．钧瓷是中国古代五大名瓷之一，以其独特的釉料及烧制方法而闻名于世。下列钧瓷的制 作工艺中，主要发生了化学变化的是 A.掘泥 B.做坯 C.画坯 D.烧炉 2．甲醇不仅是重要的化工原料，还可用于制备车用燃料。甲醇属于 A．氧化物 B．无机物 C．有机化合物 D．碱 3．当光束通过下列分散系时，能观察到丁达尔效应的是 A．Fe(OH)3胶体 B．K2SO4溶液C．蔗糖溶液 D．NaCl溶液 4．下列物质中，工业上常用电解法冶炼的是 A．Fe B．Na C．Cu D．Ag 5．盛装浓硫酸的试剂瓶上，最适合贴的图标是 A B C D 6 A．颜真卿祭侄文稿B．西汉素纱禅衣C．唐兽首玛瑙杯D．三星堆青铜面具7．下列物质中，属于电解质的是 A．金属铜 B．稀硫酸C．氯化钾 D．乙醇 8．下列元素中，非金属性最强的是 A．Cl B．S C．P D．F 9．下列化合物中，只含离子键的是
A ．HCl B ．CH 4 C ．NaCl D ．NaOH 10．下列关于氨气性质的描述中，不正确．．．的是 A ．无色、有刺激性气味气体 B ．相同条件下，密度比空气的大 C ．极易溶于水 D ．能与水反应生成碱性物质 11．糖类、油脂和蛋白质是生命活动所必须的营养物质。下列物质中，不能．． 发生水解的是 A ．葡萄糖 B ．淀粉 C ．植物油 D ．蛋白质 12．国际纯粹与应用化学联合会（IUPAC ）将周期表第116号元素Lv 命名为“鉝”（lì）。 下列关于293116Lv 的说法中，不正确．．． 的是 A ．质子数为116 B ．中子数为293 C ．核外电子数为116 D ．与互为同位素 13．航天服是保障航天员生命活动和航天工作正常运转的重要装备。下列有关航天服涉及 的材料中，不属于．．． 高分子材料的是 A ．保互层——聚四氟乙烯 B ．保暖层——羊毛 C ．液冷服——聚氯乙烯 D ．躯干部位——玻璃纤维 14．下列物质中，能使酸性高锰酸钾溶液褪色的是 A ．甲烷 B ．苯 C ．乙烯 D ．乙酸 15．下列分子中，具有平面正六边形结构的是 A ．CH 4 B ．CH 2＝CH 2 C ．CH 3≡CH 3 D ． 16．下列反应中，属于加成反应的是 A ．乙烯与氢气反应生成乙烷 B ．甲烷与氯气反应生成一氯甲烷 C ．乙醇与氧气反应生成乙醛 D ．乙酸与乙醇反应生成乙酸乙酯 17．CO 2可与H 2催化合成甲醇，于恒容密闭容器中,在催化剂作用下发生反应: CO 2 (g) + 3H 2(g) CH 3OH(g) + H 2O(g) 下列描述能说明该反应已经达到化学平衡状态的是 A ．CO 2、H 2、CH 3OH 、H 2O 在容器中共存 B ．CO 2、H 2、CH 3OH 、H 2O 的浓度均不再变化 C ．正、逆反应速率相等且等于零 D ．CO 2、H 2、CH 3OH 、H 2O 的浓度相等 18．控制变量是科学研究的重要方法。相同质量的锌与足量稀硫酸在下列条件下发生反 应，初始阶段反应速率最快的是 A B C D 锌的状态 块状 块状 粉末 粉末 c (H 2SO 4) / (mol·L ?1) 1 2 1 2 t / ℃ 20 40 20 40 19．下列物质的电子式书写正确的是 A ．H:O:H B ． C ． D ． 20．某元素原子的结构示意图为 ，由此得到的结论不正确．．． 的是 A ．元素符号是Cl B ．在周期表中的位置是第3周期，第ⅦA 族 C ．原子半径大于S D ．在化学反应中易得电子 290 116Lv 2 8 7 +17