培优阅读理解训练
培优阅读理解训练
A
56. How many glasses of water will drink in half an hour when you play games on a hot day?
A. 1-2
B. 3
C. 4
D. 2-4
57. Which of the following suggestions is wrong on a hot day?
A. Staying in air-conditional places
B. Electric fans can be used if the temperature is below 30
C. Never eat hot foods or big meals
D. A cool shower or bath is the best way to cool off
58. If you feel uncomfortable in the sun, you should __________
A. drink hot water
B. drink cool water
C. take a seat under the tree often
D. find a cool place to rest once
59. How many degrees is good for your health when you use the air condition in summer?
A. below 25 degrees
B. above 25 degrees
C. 20 degrees
D. 35 degrees
60. Which of the following statement is right?
A. Drink water when you feel thirsty
B. Electric fan is useful if the temperature is above 30
C. A weaker body will let you adjust to temperature change more difficult.
D. You’d better not use the air condition in summer
B
A couple had a son eleven years after they married. They were a loving couple and the boy was the apple of their eye. When the boy was around four years old, one day the father was very tired after work so he asked his wife to pick up their son. The mother, who was very busy in the kitchen, totally forgot about it.
Later the boy lost his way on the street. When the son was found missing, the mother hurried
to look for him, but she didn’t find him. The mother felt very sad and didn’t know how to face her husband.
When the father went to the police station after hearing that the son was missing, he looked at his wife and said just four words. What do you think the four words were?
The son was missing. If he had picked him up earlier, this would not have happened. There is no point in blaming (责备) anyone. His wife had also lost her only child. What his wife needed at that moment was comfort and understanding from her husband. That is what the husband gave his wife.
Several weeks later, with the help of the police, the couple finally found their lost son. The family’s relationship became stronger over that time.
61. Why didn’t the father pick the boy up himself?
A. He was very lazy.
B. He thought the mother had picked him up.
C. He forgot to pick him up.
D. He was too tired to do it.
62. What can we learn from this passage?
A. Be careful in everything you do.
B. Love is the most important thing.
C. Learn to forgive others.
D. Everyone can make mistakes.
63. After the father arrived at the police station, ___________.
A. he shouted at his wife
B. he begged the police for help
C. he was very angry with himself
D. he tried to make his wife feel better
64. What might be the four words that the husband said?
A. It doesn’t matter, darling
B. Never mind, my dear
C. I love you, darling
D. We try our best
65. The best title for this passage is _________.
A. Never give up
B. Forgiveness
C. A happy family
D. Love in return
C
When he was small, Hill was widely known as a bad boy.
At the age of 9, his father married his stepmother. At that time they lived poor in the countryside while his stepmother was from a wealthy family.
His father introduced Hill to his stepmother as he said, “Dear, I hope you notice in the whole country this is the worst boy, who has made me have to other way. Maybe before tomorrow morning, he will do a bad thing you will never imagine.”
To Hill’s surprise, his stepmother went up to him with a smile, held up his hands and looked at him carefully. She said to her husband, “You’re wrong. He is not the worst boy, but the most intelligent and creative boy. Only he doesn’t find a place to let out his passion.”
His stepmother’s words warmed his heart, tears almost rolling down. With this, he started building friendship with his stepmother. And this became the drive of his life, making him create 28 successful golden rules, which helped thousands of ordinary people set foot on the road to success.
Before his stepmother came, no one had ever praised him smart. However, his stepmother’s words changed his life.
When Hill was 14 years old, his stepmother bought him a used typewriter and said to him, “I believe you will become a writer.” Hill accepted her gift and expectation, and started contributing to a local newspaper. He understood and enjoyed his stepmother’s love while he saw with his own eyes she had changed his family with her love.
The strength from his stepmother led to Hi ll’s imagination, inspired his creativity, helped him link with a lot of wisdom and made him a rich man and famous writer in the United States and one of the most influential person in the 20th century.
Praise will never be unnecessary, especially for children. A sincere praise may be better than 10, 000 severe blame.
66. What surprised Hill was that .
A. his father told his stepmother he was a bad boy
B. his stepmother had a great deal of money
C. his stepmother praised him when they first met
D. his father looked down upon him
67. According to the passage, the phrase “let out” is the closest in meaning to .
A. finish
B. express
C. describe
D. cry
68. Which of the following was one of Hill’s achievements?
A. He created 28 successful golden rules for the wealth.
B. He became a famous writer in the United Kingdom.
C. He became a well-known typist.
D. He was one of the most important writers in the 20th century.
69. From the passage we can see that .
A. Hill’s stepmother didn’t regard him as what other people thought of him.
B. It was Hill’s mother that led him to become a famous writer
C. Hill’s family was very rich all the time
D. Hill was always full of wonderful imagination and creativity
70. Which is the best title of the passage?
A. Hill —A Famous Writer
B. What Great Mother’s Love
C. The Praise That Changed the Life
D. A Bad Boy Who Turned Over A New Leaf
初二英语阅读理解题
初二英语阅读理解精选题(一) My class will put on a short play in English at the end of the year. Yesterday our English teacher gave us copies of the play. “Choose a character in the play whom you’d like to be, ”she told us. “This afternoon learn a few lines of this part for homework. Then tomorrow you can say those lines in front of the class. I’ll decide who play each part.” I wanted to have one of the bigger parts in the play, so I choose the part of the king. He has a lot of lines to say. I learned them by heart. This morning in our English lesson we had to say our lines. I acted the part of the king. When I said my lines, I put a lot of expression into my acting. I thought I acted really well. Everyone in the class read a part and then the teacher who would play each part. Many of the students in my class couldn’t act at all. They couldn’t even read without making lots of mistakes. I was sure that I would get a big part in the play. However, the teacher gave me the part of a soldier. He has only one line. It is, “Yes, sir!” I was very disappointed. At the end of the lesson I went up to her and asked her why I had such a small part. “You put too much expression in your acting,” she said. “Good acting is not big acting. It is acting the audience can believe in.” I think I know what she means. 48. What did the boy want to do in the play? A. To get an important part B. To organize the play C. To get a large acting part. D. To work the lights. 49. How did the boy feel when the teacher told the class they would put on a play? A. Bored. B. Sad. C. Excited. D. Unhappy.
(完整)九年级化学培优专题训练
直升班化学培优专题讲座 第一讲差量法 例1、用氢气还原10克CuO，加热片刻后，冷却称得剩余固体物质量为8.4克，则参加反应CuO的质量是多少克？ 例2、将CO和CO2的混合气体2.4克，通过足量的灼热的CuO后，得到CO2的质量为3.2克，求原混合气体中CO和CO2的质量比？ 例3、将30克铁片放入CuSO4溶液中片刻后，取出称量铁片质量为31.6克，求参加反应的铁的质量？例4、已知同一状态下，气体分子间的分子个数比等于气体间的体积比。把30mL甲烷和氧气的混合气体点燃，冷却致常温，测得气体的体积为16mL，则原30mL中甲烷和氧气的体积比？ 例5、给45克铜和氧化铜的混合物通入一会氢气后，加热至完全反应，冷却称量固体质量为37克，求原混合物中铜元素的质量分数？ 答案：1、8克2、7∶53、11.2克4、8∶7 7∶235、28.89% 练习1、将盛有12克氧化铜的试管，通一会氢气后加热，当试管内残渣为10克时，这10克残渣中铜元素的质量分数？ 练习2、已知同一状态下，气体分子间的分子个数比等于气体间的体积比。现有CO、O2、CO2混合气体9ml，点火爆炸后恢复到原来状态时，体积减少1ml，通过氢氧化钠溶液后，体积又减少3.5Ml，则原混和气体中CO、O2、CO2的体积比？ 练习3、把CO、CO2的混合气体3.4克，通过含有足量氧化铜的试管，反应完全后，将导出的气体全部通入盛有足量石灰水的容器，溶液质量增加了4.4克。 求⑴原混合气体中CO的质量？ ⑵反应后生成的CO2与原混合气体中CO2的质量比？ 练习4、CO和CO2混合气体18克，通过足量灼热的氧化铜，充分反应后，得到CO2的总质量为22克，求原混合气体中碳元素的质量分数？ 练习5、在等质量的下列固体中，分别加入等质量的稀硫酸(足量)至反应完毕时，溶液质量最大的是() A Fe B Al C Ba(OH)2 D Na2CO3 练习6、在CuCl2和FeCl3溶液中加入足量的铁屑m克，反应完全后，过滤称量剩余固体为m克，则原混合溶液中CuCl2与FeCl3物质的量之比为()(高一试题) A 1∶1B3∶2 C 7∶ D 2∶7 练习7 P克结晶水合物A?nH20，受热失去全部结晶水后，质量为q克，由此可得知该结晶水合物的分子量为() Ａ18Pn/(P—q) B 18Pn/q C18qn/P D18qn/(P—q) 答案：1 、96% 5、A 6 、C7、 A
一年级阅读理解培优训练(附解析)1
阅读理解培优训练(附解析)1 一、一年级语文上册阅读理解练习 1．和大人一起读(《小兔子乖乖》，再填空。(填序号) ________来了，小兔子没开门。 ________来了，小兔子开了门。 ①灰狼②兔妈妈 【答案】①；② 【考点】儿歌 【解析】 2．读短文，完成下面练习。金色的秋天 秋风阵阵吹，白云朵朵飘。天气一天天凉了。 一片片树叶在风中飞舞，好像一只只美丽的蝴蝶。有红的，有黄的，还有半黄半绿的。它们飞呀，飘哇，纷纷向树妈妈告别。 （1）短文有________段。 （2）树叶像什么？ （3）树叶都有什么颜色的？ （4）树叶向树妈妈告别会说些什么呢？请你写一写，不会的字可以用拼音。 【答案】（1）2 （2）一片片树叶在风中飞舞，好像一只只美丽的蝴蝶。 （3）有红的，有黄的，还有半黄半绿的。 （4）略 【考点】语段阅读 【解析】 3．快乐阅读 爱动脑筋（jīn）的孩子 华(huà)佗(tuó)七岁时，有一天和几个小朋友一起摘桑( sāng)叶，一位老爷爷路过，问他们：“谁能摘下树顶上的叶子？”小朋友们抬头一看：树那么高，树顶上的枝条那么细，根本上不去呀！ 华佗想了想，找来一根绳(shéng)子，在绳子一头拴(shuān)了块石头，把石头抛(pāo)过枝条，枝条就被压(yā)弯了。他又用双手使劲拽(zhuài)绳子，枝条更低了。这样，他就摘到树顶上的叶子了。 老爷爷笑了，说：“这孩子爱动脑筋。好，我就收你做徒(tú)弟吧！”原来，老爷爷就是当地有名的蔡(cài)医生。 （1）这篇短文有________个自然段。
（2）填一填。这篇短文写的是华佗________岁时候的故事，文中的老爷爷是________的蔡医生。 （3）华佗是怎样摘到树顶上的叶子的？从文中找出相关的句子 （4）华佗是个________的孩子。 【答案】（1）3 （2）七；当地有名 （3）华佗想了想，找来一根绳(shéng)子，在绳子一头拴(shuān)了块石头，把石头抛(pāo)过枝条，枝条就被压(yā)弯了。他又用双手使劲拽(zhuài)绳子，枝条更低了。这样，他就摘到树顶上的叶子了。 （4）爱动脑筋 【考点】记叙文，乌鸦喝水 【解析】【分析】（1）这篇短文有3个自然段。（2）这篇短文写的是华佗七岁时候的故事，文中的老爷爷是地有名的蔡医生。（3）华佗想了想，找来一根绳(shéng)子，在绳子一头拴(shuān)了块石头，把石头抛(pāo)过枝条，枝条就被压(yā)弯了。他又用双手使劲拽(zhuài)绳子，枝条更低了。这样，他就摘到树顶上的叶子了。（4）华佗是个爱动脑筋的孩子。 【点评】做好每一个小题，都是基于读懂课文的基础之上，本题考查学生对课文内容的理解程度，锻炼了学生阅读和运用能力，特别是语言表达能力。 4．读儿歌，回答问题。 文具歌 铅笔尺子田字本，学习用品好伙伴， 天天帮助我学习，和我成长永相伴， 不损坏，不浪费，学习用品要爱惜! （1）儿歌提到了哪几种文具用品？在儿歌中找出来。 （2）你学习的好伙伴还有哪些？写下来和大家分享吧。 （3）在正确的说法后面画“√”，错误的画“×”。 ①学习用品和“我”的成长永相伴。________ ②我们要爱惜学习用品，不应该借给同学用。________ ③铅笔、尺子、田字本等都是学习用品。________ 【答案】（1）铅笔、尺子、田字本 （2）橡皮、彩笔、蜡笔、转笔刀等。 （3）√；×；√ 【考点】语段阅读 【解析】 5．读儿歌回答问题。 月亮姑姑减肥记 月亮姑姑长得胖圆圆脸蛋亮堂堂。
(完整)五年级阅读训练题10篇(附答案)
深山含笑（五年级阅读训练一） 我以前见过的含笑花都是庭院种植的，叶细花小，象牙色的花蕊吐着幽香，有一种水果般的甜沁。含笑不（以、已）艳丽著称，妙的是一缕沁香。 在井冈山深处，我被另一种含笑花（佩、折）服！几株两三丈高的乔木体如游龙，散发出弥天的清香气息，这就是野生的深山含笑。多么突兀的秀色啊！她简直像一个绝世独立的北方佳人，（竟、竞）然在大山深处隐藏了如此潇洒、如此豪放的春光。和庭院含笑相比，倒（像、向）是临风挺立的 巾帼英雄，笑得那么爽朗、欢畅。那是一种胜利的喜悦，似乎天上的白云都是从她的胸中笑出来的。 从小路那边走过来两个拎着简单行李的年轻人。他们是那个边远的、还没通车的村子里的老师、跟着他们，我们也进了村。目睹孩子们围着老师的亲切嬉闹，我忽然感觉另有一株高大的深山含笑在我心中晃动起来…… 1．把文中括号里有不合适的字划掉。（5分） 2．庭院中的含笑与野生的含笑有什么不同？（3分） ________________________________________________ _________________________________________________ 3．在文中用曲线画出两个比喻句。（2分） 4．注意带点词语，结合题目写出文章最后一句话的意思。（4分）
--------------- （五年级阅读训练二） 王若飞同志是一位无产阶级革命家。解放前，他因从事革命工作，被敌人逮捕了。在监狱里，他经常对难友们说：“敌人要摧残我们，我们一定要爱护自己的身体， 我们是革命者，决不能向恶劣的环境屈服，要坚决斗争。” 王若飞同志的身体不好，为了坚持对敌斗争，他想方设法，利用各种条件锻炼身体。 王若飞同志在狱中的锻炼方法之一是日光浴。他利用每天短暂的放风时间到院子里晒太阳。后来，他得了严重的风湿性关节炎，敌人被迫允许他每天晒一两小时太阳。他就利用这个机会，躺在院子里让太阳晒全身，把皮肤晒得紫红紫红的。 冷水擦身，是王若飞锻炼身体的另一种方法。那时，反动派百般折磨政治犯，别说洗澡，就连喝的水也不供给。但王若飞的言行感动了出身贫苦的老看守员，他偷偷地给王若飞买了几只大碗，王若飞同志每天用它盛冷水，用毛巾蘸着擦身，擦到全身发红为止。 王若飞同志在狱中还有一种锻炼方法，叫做“室内体操”。体操包括伸腿、弯腰、曲臂等动作。不管三九天，还是三伏天，他都坚持锻炼。 一次，一个难友问王若飞：“我有一事不明白，你骂**，骂蒋介石，天不怕，地不怕，真是好汉。可是，你坐在牢房里，还天天做操，又好像很爱护自己的身体，这 究竟是怎么回事？”
2020届中考英语阅读理解50篇(含答案)
2020届中考英语阅读理解50篇 (精品训练题值得练习) 1 When I was a kid in Minnesota, watermelon was expensive. One of my father’s friends, Bernie, was a rich businessman, who owned a large store in St. Paul. Every summer, when the first watermelons arrived, Bernie would call. Dad and I would go to Bernie’s place. We’d sit on the edge of the dock（码头）, feet dangling（摇晃）, and got ready for a big meal. Bernie would take his knife, cut our first watermelon, hand us both a big piece and sit down next to us. Then we’d bury our faces in watermelon, eating only the heart—the reddest, juiciest, firmest, sweetest, most seed-free part—and throw away the rest. Bernie was my father’s idea of a rich man. I always thought it was because he was such a successful businessman. Years later, I realized that it was not Bernie’s wealth itself but his way of dealing with it that my father liked. Bernie knew how to stop working, get together with friends and eat only the heart of the watermelon. What I learned from Bernie is that being rich is a state of mind. Some of us, no matter how much money we have, will never be free enough to eat only the heart of the watermelon. If you don’t take the time to dangle your feet over the dock and enjoy life’s small pleasure, your work is probably hurting your life. For many years, I forgot that lesson I’d learned as a kid on the loading dock. I was too busy making all the money I could. Well, I’ve relearned it. I hope I have time left to enjoy the success of others and to take pleasure in the day. That’s the heart of the watermelon. I have learned again to throw t he rest away. 1. We learned from the second paragraph that the writer and his father were feeling ______. A. relaxed B. worried C. hungry D. proud 2. How did the writer and his father eat the watermelon? A. They ate it in a polite way. B. They only ate its best part. C. They ate every part of it. D. They shared only one piece. 3. In the eyes of the writer’s father, Bernie ______. A. was just a rich businessman B. worked hard all the time
人教版初三化学化学方程式的计算培优同步测试含答案
人教版初三化学化学方程式的计算培优同步测试含答案 一、初中化学利用化学方程式选择题 1．下列物质露置于空气中，因发生化学变化而使质量增加的是（） A．烧碱B．浓硫酸C．浓盐酸D．双氧水 2．甲和乙在一定条件下反应生成丙和丁的微观示意图如下，结论正确的是（） A．丁的式量为18g B．生成物都是氧化物 C．参与反应的甲和乙的质量比为22:3D．反应前后分子个数不变 3．Fe和FeO的混合物，测得其中铁元素的质量分数为80%．取该混合物7.0g，加足量稀硫酸完全溶解，生成FeSO4的质量为（） A．7.6g B．15.2g C．20.0g D．40.0g 4．对化学反应：M+H2SO4=CaSO4↓+2N的认识，错误的是（） A．N中一定含有氢元素B．相对分子质量：M＞N C．M可能是CaO D．N可能是HNO3 5．已知2A＋3B==C＋3D，用足量的A和49 g B恰好完全反应，生成57 g C和1 g D，若B 的相对分子质量为98，则A的相对分子质量为( ) A．16 B．27 C．44 D．56 6．如图是某反应的微观示意图。下列说法正确的是（） A．生成物有两种B．该化学反应属于分解反应 C．反应物微粒个数比是1:1 D．生成物可能是氧化物 7．在一密闭容器内有氧气、氮气、水蒸气和一种初中课本中出现的气体物质W，在一定条件下充分反应，测得反应前后各物质的质量如下表所示，则下列说法中错误的是( )物质W氧气氮气水蒸气 前质量/g6810022 反应后质量/g X458110 A．X的值应为0 B．反应前后氮元素的化合价发生了变化 C．物质W中不含氧元素 D．W与氧气的相对分子质量之比为17：24
2020-2021高考英语备考之阅读理解压轴突破训练∶培优易错试卷篇及答案(1)
一、高中英语阅读理解 1．阅读理解 When John was growing up, other kids felt sorry for him. His parents always had him weeding the garden, carrying out the garbage and delivering newspapers. But when John reached adulthood, he was better off than his childhood playmates. He had more job satisfaction, a better marriage and was healthier. Most of all, he was happier. Far happier. These are the findings of a 40-year study that followed the lives of 456 teenage boys from Boston. The study showed that those who had worked as boys enjoyed happier and more productive lives than those who had not. "Boys who worked in the home or community gained competence (能力) and came to feel they were worthwhile members of society, "said George Vaillant, the psychologist (心理学家) who made the discovery. "And because they felt good about themselves, others felt good about them." Vaillant's study followed these males in great detail. Interviews were repeated at ages 25, 31 and 47. Under Vaillant, the researchers compared the men's mental-health scores with their boyhood -activity scores. Points were awarded for part-time jobs, housework, effort in school, and ability to deal with problems. The link between what the men had done as boys and how they turned out as adults was surprisingly sharp. Those who had done the most boyhood activities were twice as likely to have warm relations with a wide variety of people, five times as likely to be well paid and 16 times less likely to have been unemployed. The researchers also found that IQ and family social and economic class made no real difference in how the boys turned out. Working—at any age—is important. Childhood activities help a child develop responsibility, independence, confidence and competence—the underpinnings (基础) of emotional health. They also help him understand that people must cooperate and work toward common goals. The most competent adults are those who know how to do this. Yet work isn't everything. As Tolstoy once said, "One can live magnificently in this world if one knows how to work and how to love, to work for the person one loves and to love one's work." （1）What do we know about John? A. He enjoyed his career and marriage. B. He had few childhood playmates. C. He received little love from his family. D. He was envied by others in his childhood. （2）Vaillant's words in Paragraph 2 serve as ________. A. a description of personal values and social values B. an analysis of how work was related to competence C. an example for parents' expectations of their children D. an explanation why some boys grew into happy men （3）Vaillant's team obtained their findings by ________. A. recording the boys' effort in school B. evaluating the men's mental health C. comparing different sets of scores D. measuring the men's problem solving ability （4）What does the underlined word "sharp" probably mean in Paragraph 4?
(完整)五年级阅读方法讲解及练习题
班别：五年级姓名：学习成效评价： 第 1 讲 小学语文阅读理解答题技巧 第一部分基本步骤 1、通读全文，掌握大意。快速浏览全文，重视标题（中心）、开头段（观点）、结尾段（结论）及各段落的首句（主题句），不管生词难句。 2、浏览考项，细读答题。浏览题目，然后带着问题仔细的阅读第二遍，以做到有目的的阅读。 3、复读全文，验证答案。答题完毕时，同学们应对照答案将整篇文章从头到尾再看一遍，以确保答案的正确，同时答案要求：准确，简洁，全面。 第二部分基本知识 1、写作顺序：时间顺序、空间顺序、事情发展顺序、总分总顺序（包括总分、分总）、参观或游览顺序、事物的不同方面或不同类别顺序。 2、表达方法有五种：记叙、描写、说明 3、记叙的顺序：顺叙、倒叙、插叙（一般只会考“倒叙”） 4、描写有人物描写、场面描写、细节描写、侧面描写等。 5、人物描写有五种：外貌、语言、心理、动作、神态。 6、说明方法有：列数字、分类别、打比方、作比较、（画图表、引资料、下定义……） 7、修辞手法有：比喻、拟人、夸张、排比、设问、反问、（对偶、反复……） 第三部分基本方法 一、概括全文内容 1、本文写了在什么时候什么地点什么人做了什么事结果怎样。 2、本文记叙了一个什么故事，告诉我们什么道理。 3、找出每大段的段意串起来。 二、概括中心思想 1、本文表现了谁的怎样的精神。 2、本文表达了谁对谁（什么）的怎样的思想感情。 三、某句话是什么句，有什么作用。 1、中心句，突出中心（或点明中心） 2、过渡句，承上启下 3、总起句：总领全文、引起下文 4、其他作用：和开头呼应、设置悬念，激发读者的阅读兴趣，为下文做铺垫、与下文进行对比， 四、人称的好处 第一人称的好处：内容真实可信。 第二人称的好处：语气亲切自然。（代表性的文章是《再见了亲人》的1、2、3段，《山中访友》的3、5自然段） 五、解释词语的方法 解释词语一定要联系上下文理解。 1、组词法：如果要解释的一个字，我们可以组一个词语来解释。 2、分合法：如“勘测”的意思是“勘探、测量”。 3、近义词法：如“不畏”就是“不怕”。 4、反义词加否定的方法：“崎岖”就是“不平坦”。 5、描绘法：如“踉跄”是“走路不稳的样子”。
人教版初二英语阅读理解练习
(A) In the world, soccer of football is the most popular sport. This is because many countries have wonderful teams for the World Cup. The World Cup is held every four years. To remember 2002 FIFA World Cup, children from different countries and more than 60 children from Japanese schools came together and spent three weekends drawing a big picture called“Dream(梦幻) World Cups” in Japan. The children drew animals, flowers and people playing soccer under a blue bright sky. They wished each football team good luck by drawing the flags(旗帜)of all the countries that will take part in the World Cup in Japan and South Korea. The picture was put up in a park near a playground in Y okohama. Some football teams will have games there. Are you a football fan(迷)？The World Cup makes more and more people interested in football. Teenagers(青少年)like playing and watching football. Many of them love some football stars so much that they get the pictures of their favorite players on the walls of their rooms. That is the way to show their love for the World Cup as children in Japan. 1. If a country wants to take part in the World Cup, she must have______. A. Many football fans B.a very good team C. many football player D.a big playground 2. The next World Cup will be held in_______. A.2006 B.2007 C.2005 D.2004 3. From the passage, in the picture children drew many things except_________. A. people playing football B. pictures of some football stars C. a sunny sky D. flowers 4.In“Dream World Cup”,the children drew the flags of some countries______. A. to show their love for their owe country B. to tell the people their stories C. to show their good wishes for the football teams D. to show their new ideas about football 5. Many teenagers owe the pictures of some football stars because______. A. they are interested in football B. they are football fans C. they think their favorite players are great D. all of A, B and C (B) In 1826, a Frenchman named Niepce needed pictures for his business. But he was not a good artist. So he invented a very simple camera(照相机). He put it in a window of his house and took a picture of his garden. That was the first photo. The next important date in the history of photography (摄影术) was in 1837. That year ,Daguere,another Frenchman, took a picture of his reading room .He used a new kind of camera in a different way. In his picture you could see everything very clearly, even the smallest thing. This kind of photo was called a Daguerreotype. Soon, other people began to use Daguerre’s way. Travelers brought back wonderful photos from all around the world. People took picture of famous buildings, cities and mountains. In 1840, photography was developed. Then photographers could take picture of people and moving things. That was not simple. The photographers had to carry a lot of film and other machines. But this did not stop them, for example, some in the United States worked so hard. Mathew Brady was a famous American photographer. He took many pictures of greed people. The picture were unusual because they were very lifelike(栩栩如生的). Photographers also became one kind of art by the end of the 19th century. Some photos were nor just cookies of the real world. They showed feelings, like other kinds of art. 6. The first photo taken by Niepce was a picture of ____________ A. his business B. his house C. his garden D. his window 7. The Daguerreotyped was____________. A. a Frenchman B. a kind of picture C. a kind of camera D. a photographer 8. If a photographer wanted to take pictures of moving things in the year of 1840, he had to__________.
初三化学化学方程式的计算培优复习测试题及解析
初三化学化学方程式的计算培优复习测试题及解析 一、初中化学利用化学方程式选择题 1．在反应A+3B＝2C+2D中，A和B的相对分子质量之比9：11，已知1.8gA与一定量B恰好完全反应成5.1gD，则在此反应中反应物B和生成物C的质量比为？（） A．2：1 B．2：3 C．3：1 D．1：2 2．科学家最新发现，可以将树木纤维素转变为超级储能装置，该反应的微观示意图如下。下列说法正确的是 A．反应前后分子总数不变 B．反应中 X、Z 两种物质的质量比为 3:7 C．反应中 Y 和 W 的物质的量之比为 4:5 D．参加反应的 Y 中氮元素的质量一定等于生成 Z 的质量 3．甲和乙在一定条件下反应生成丙和丁的微观示意图如下，结论正确的是（） A．丁的式量为18g B．生成物都是氧化物 C．参与反应的甲和乙的质量比为22:3D．反应前后分子个数不变 4．Fe和FeO的混合物，测得其中铁元素的质量分数为80%．取该混合物7.0g，加足量稀硫酸完全溶解，生成FeSO4的质量为（） A．7.6g B．15.2g C．20.0g D．40.0g 5．已知：在650℃时，CuSO4分解为CuO与气体，在1400℃时，CuO受热发生如下分解反应：4CuO2Cu2O+O2↑．现将16gCuSO4高温加热一段时间，冷却后称量剩余固体为7.6g．下列说法错误的是（） A．剩余固体为混合物B．产生的气体中，硫、氧的质量比为8∶26 C．剩余固体中含6.4g铜元素D．剩余固体用足量CO还原，可产生 CO23.3g CO的混合物10g，测得其中氧元素含量为 6．如图所示：在密闭容器中充入CO和2 64%，再向密闭容器中通入足量的氧气，通电使电火花塞点火让其中的一氧化碳完全燃烧成二氧化碳。则完全反应后密闭容器中二氧化碳的质量为()
一年级阅读理解培优训练(附解析)
阅读理解培优训练(附解析) 一、一年级语文下册阅读理解练习 1．读一读，做一做。 小鱼儿说：“荷叶是我的凉伞。”小鱼儿在荷叶下笑嘻嘻地游来游去，捧起一朵朵很美很美的水花。 （1）照样子写词语。 笑嘻嘻 ________ ________ 游来游去 ________来________去 ________来________去 （2）小鱼儿说了些什么?用文段中的话回答。 （3）从这段话中，可以看出小鱼儿在荷叶下生活得很________。 （4）看图想一想：荷叶是小朋友的什么。 小朋友说：“荷叶是我的________。”小朋友笑得美滋滋的。 【答案】（1）乐呵呵 ；胖乎乎 ；飞 ；飞 ；走 ；走 （2）荷叶是我的凉伞。 （3）快乐 （4）太阳帽 【解析】 2．阅读理解，完成练习。 好消息 三月的微风把好消息轻声告诉了一朵云，云儿背着许多小雨滴。 雨滴噼噼啪啪落下来，把好消息告诉了苹果树上的一朵花儿。 正在采蜜的小蜜蜂听到了好消息，就嗡嗡地唱着歌告诉山丘上的每一朵蒲公英。 蒲公英一句话也不说，她们金黄色的脸儿，在雨后的阳光下露出了笑容。 现在每一个人都知道了这个好消息——春天来了。 （1）全文共有________个自然段。 （2）在文中找出与下列词语意思相反的词。
哭——________ 坏——________ 去——________ 重——________ （3）你知道这个好消息是什么吗？写下来。 （4）都有谁在传递这个好消息?请把它们的名字圈起来吧！。 【答案】（1）五 （2）笑；好；来；轻 （3）春天来了。 （4）微风、云儿、雨滴、小蜜蜂、蒲公英。 【解析】 3．阅读下文，回答问题。 正做着好梦， 又听见大人在叫：“该起床上学啦！” 唉．要是不上学就好了。 不过，去了学校， 就能见到小伙伴，多么开心哪！ （1）“我”正做着梦，不想起床去上学，可是去了学校能见到________，也很________，快乐的事情真是一件接一件。 （2）你有这样的经历吗？和同学说一说。 【答案】（1）小伙伴；开心 （2）我正在看电视，妈妈在叫：“该读书啦”！唉，不读书该多好呀！不过，书中有很多有趣的故事，读书也是件开心的事呀！ 【解析】 4．阅读短文，完成练习。我是雪人。冬天来了，我又出现了。 小朋友们喜欢我，常常和我在一起玩。 天气很冷，小鸟飞到我这里来，站在我的头上，对我说：“朋友，你不觉得冷吗？”我说：“我不怕冷，只怕热，太阳一出来，我就会不见的。” （1）这篇短文________个自然段。 （2）雪人是在什么时候出现的？雪人是在________出现的。 （3）谁常常和雪人在一起玩？常常和雪人在一起玩。 （4）小鸟飞来，站在雪人的什么地方？小鸟飞来，站在雪人的________。 （5）找出雪人说的话。 （6）“太阳一出来，我就会不见的。”这里的“我”指的是________。 （7）太阳一出来，“我”会怎么样？太阳一出来，“我”会________。 【答案】（1）3 （2）冬天 （3）小朋友们 （4）头上 （5）我不怕冷，只怕热，太阳一出来，我就会不见的。
人教版五年级(下)阅读理解专项训练(含答案)
人教版五年级（下）阅读理解专项训练（含答案）姓名：__________________ 班级：__________________ （一）天使 ①小时候，我是一个捣蛋、不爱学习又极爱报复的孩子。无论在家里还是在学校，父母和老师、兄弟和同学都极其厌恶我，然而，在心里我渴望着大家的关爱，就像人们渴望上帝的福泽一样。我一个人独处的时候常常默默祈祷：上帝啊！给我善良、给我宽厚、给我聪明吧，我也想如卡尔列一样成为同学们的榜样。可是，上帝正患耳疾，我的祈祷没有一句应验。我依然是个令人生厌的坏孩子，甚至因为我，没有老师愿意带我们这个班。 ②三年级的第一个学期，学校里来了一位新老师，她就是年轻的玛丽娅小姐。玛丽娅小姐刚一站到讲台上，整个班里都沸腾了，她太漂亮啦！我带头吹口哨、飞吻、往空中扔书本，好多男生跟我学，我们的吵闹声几乎要把房顶掀开。 ③玛丽娅小姐没有像其他老师那样大声叫嚷：“安静！安静！”她始终面带微笑地望着我们。奇怪，这样我反而感到很无聊，于是，我打一个手势，大家立即停止了胡闹。玛丽娅小姐开始自我介绍，当她转身想把自己的名字写到黑板上时，才发现讲桌上没有粉笔，我注意到她的眉头皱了一下，很快又舒展了。心想：糟了，她肯定识破了我们的把戏。但是，玛丽娅小姐却转过身来问：“谁愿意替老师去拿盒粉笔？”刚刚平静下来的教室沸腾又开始了，怪声怪气的笑声再次淹没了整个教室，好多男生争着去干这件事。 ④玛丽娅小姐请大家不要争，她会挑一个最合适的人选。玛丽娅走下讲台，仔细查看了每一个人，最后她说：“基恩，你去吧。”我说：“为什么是我？”“因为我看得出你热情、机灵又具有号召力，我相信你会把事情做得很好。” ⑤我热情？我机灵？我具有号召力？我竟然有这么多优点？玛丽娅一眼就看出了我的优点！要知道，在此之前从未有人说过我哪怕一点点的好处，甚至我自己也认为我是一个被上帝抛弃的孩子。 ⑥我很快取回一盒粉笔，因为它就藏在教室后面的草丛里。当我正要把粉笔递给玛丽娅小姐时，我发现我的手指甲缝里存满了污垢，衬衣袖口开了线，裤腿上溅满了泥点，更糟糕的是我五个脚趾全从破了口的鞋子里露出了头。我很不好意思，可玛丽娅小姐一点也不在意这些，她接粉笔的时候给了我一个天使般的微笑。玛丽娅就是上帝派来的天使。 ⑦从此，我决定做一个上进、体面的人，因为我知道天使正在注视着我。 （1）给下列加粗的字注音。 祈（）祷污垢（）淹没（） （2）第①段的描述对下文进一步展示“我”是一个铺垫。请你用一句话评价一下这时的“我”是个什么样的孩子？ _____________________________________________________________________________________________ _____________________________________________________________________________________________（3）玛丽娅小姐根据什么对基恩作出“热情、机灵和具有号召力”的评价？请用文中的语句回答。_____________________________________________________________________________________________ _____________________________________________________________________________________________（4）第⑥段对“我”的外貌描写的作用是什么？