模拟试卷七
山东省中考语文模拟试卷(七)及答案
山东省中考语文模拟试卷(七)一、积累运用(22分)1.下列加点字读音无误的一项是()A.烧酌.(zhuò)校.补(xiào)军帖.(tiě)摩肩接踵.(zhǒng)B.归省.(shěng)翩.然(piān)上溯.(sù)振聋发聩.(kuì)C.濡.养(rú)轻觑.(qù)豢.养(huàn)自渐形秽.(huì)D.睥.睨(bì)诘.难(jié)锱.铢(zī)蹑.手蹑脚(niè)2.下列词语中没有错别字的一项是()A.鄙薄挚痛振悚无虞刨根问底B.濒临题跋罅隙狼藉重峦叠幛C.静穆稀疏潦望思慕霓裳羽衣D.虚妄愕然惊骇盘桓铢两悉称3.下列句中加点词语使用不恰当的一项是()A.儿童剧《芝麻开门》的剧情抑扬顿挫....,台词诙谐幽默,受到现场观众的热烈称赞。
B.春天的卧佛寺公园,阳光明媚,草长莺飞....,我们一家人徜徉其中,尽享美景。
C.在海军建军70周年阅兵式上,人民海军挥戈闯大洋,砺剑海天间,民族自豪感在我们心中油然而生....。
D.先进文化理念是科技创新的思想源泉,科技创新推动文化产业转型升级,文化和科技是相辅相成....的。
4.下列关于文学、文化常识的表述错误的一项是()A.《战国策》是西汉刘向根据战国时期史料整理编辑的,共33篇,分国编次。
如《唐睢不辱使命》《邹忌讽齐王纳谏》,分别选自《战国策》中的《魏策》《齐策》。
B.我国古代的诗歌类型多样,有古乐府、歌行、律诗,还有词和曲。
如我们学过的《木兰诗》就属于乐府诗,辛弃疾的《南张子·登京口北固亭有怀》就是元曲。
C.儒家学说的代表人物是孔子和孟子,孔子是儒家学说的创始人,孟子是继孔子之后的儒家学派代表人物,后人尊称孔子为“圣人…至圣先师”,孟子为“亚圣”。
他们的思想体现在《论语》《孟子》里面。
D.雨果,法国作家,代表作有小说《巴黎圣母院》《悲惨世界》《九三年》等。
江西省“三校生”对口升学考试语文模拟试卷7(超清版有答案)
江西省“三校生”对口升学考试模拟考试试卷语文(七)注意事项:1.答卷前,考生务必将自己的姓名、准考证号填写在答题卡和试卷指定位置上。
2.回答选择题时,选出每小题答案后,用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。
回答非选择题时,将答案写在答题卡上,写在本试卷上无效。
3.考试结束后,监考员将本试卷和答题卡一并收回。
第Ⅰ卷(选择题45分)本卷共15小题,每小题3分,共45分。
在每小题给出的四个选项中,只有一项符合题目要求。
一、(24分,每小题3分)1.下列词语中,加点字的读音全部正确的一项是__________A. 榴(liú)莲癖(pǐ)好因为(wèi)饮鸩(zhèn)止渴B. 押解(jiè)剽(piáo)窃莅(wèi)临牵强(qiǎng)附会C.角(jué)色复辟(pì)混(hùn)合情不自禁(jìn)D.嫉(jì)妒唠(láo)叨馄饨(dùn)浩浩汤汤(shāng)2.下列词语中,没有..错别字的一组是__________A.姆指流淌旋律嘘寒问暖B.呕吐发怔精简旁征博引C.蝴蝶痉孪相貌闻名遐尔D.坐阵明信片寒喧鼎力相助3.依次填入下列各句横线上的词语,正确的一项是__________①既然政府还没有发出__________,允许做这种事,那就做不得。
②为了避免我们的谈话被人家误解_________闹出什么乱起见,我得把我们谈话的内容报告校长。
③这人总想把自己__________在壳子里,仿佛要为自己制造一个套子,好隔绝人世。
A.通知以至装 C. 通告以至包B. 通知以致装 D. 通告以致包4.下列各句中,加点成语使用不正确...的一项是__________A.语文老师歇斯底里....的讲课,赢得了同学们的一致好评。
B. 经过四十年的改革开放,我国的综合国力与日俱增....。
小学毕业语文模拟试卷(七)
小学毕业语文模拟试卷(七)_ldquo;张_rdquo;在字典里的解释有:①展开,开;②铺排陈设;③看,望;④量词;⑤姓._ldquo;张灯结彩_rdquo;的_ldquo;张_rdquo;是第( )种解释;_ldquo;东张西望_rdquo;的_ldquo;张_rdquo;是第( )种解释.2.比一比,组成词语.(3分)钓( ) 妨( ) 询( )钩( ) 防( ) 讯( )三词语.(共12分)1.将成语补充完整,再把含不好感情色彩的写在横线上.(6分)欣欣向( ) 舍( )为人 ( )气凌人口若( )河好高( )远精兵( )政神机妙( ) 高( )远瞩______________________________________________2.选词填空.(6分)严肃严厉严格夸口夸耀夸奖优异优秀优良因为_hellip;_hellip;所以_hellip;_hellip; 不但_hellip;_hellip;而且_hellip;_hellip;王宏同学处处( )要求自己,( )思想品德好,( )学习成绩好.大家都( )他是一个( )的少先队员.可是他从来不( )自己.四句子.(共12分)1.修改病句(在原句上改).(6分)①小明出席了市里的作文竞赛._______________________②他经常回忆过去有趣的往事._______________________③我们从小就要养成讲卫生懂礼貌.____________________________2.按要求换一种说法.(6分)①澎湃的波涛把海里的泥沙卷到岸边.(换成_ldquo;被_rdquo;字句)___________________________________________②人与山的关系日益密切,怎能不使我们感到亲切舒服呢?(换成陈述句)____________________________________________③爸爸辅导我.我学作文.(把两句话合成一句话)____________________________________________五应用文.(4分)李华同学患重感冒,医生要他休息两天.请以李华的身份向张老师写一张请假条,日期是5月10日.六课内阅读.(共18分)1.判断下面的说法,对的在括号里画_ldquo;_radic;_rdquo;错的画_ldquo;_times;_rdquo;. (4分)①《林海》一课中讲的_ldquo;大兴安岭美得并不空洞_rdquo;,主要是因为大兴安岭有岭林花.( )②《伏尔加河上的纤夫》这幅画是俄国画家列宾的作品.( )④《书的故事》和《在仙台》都是写鲁迅先生关心爱护青年的故事.( )2.按《三衢道中》原诗填空,并按要求答题.(6分)梅子黄时日日( ),小溪( )尽却山行.绿( )不减来时路,( )得黄鹂四五声.这首诗是写三衢道( )时候的景色.诗中的一对反义词是( )和( ).全诗写了诗人山行时( )的心情.3.阅读课文片断,回答问题.(8分)詹天佑亲自带着学生和工人,背着标杆经纬仪在峭壁上定点构图.塞外常常是狂风怒号,黄沙满天,一不小心就有坠入深谷的危险.詹天佑不管条件怎样恶劣,始终坚持在野外工作._hellip;_hellip;遇到困难,他总是想:这是中国人自己修筑的第一条铁路,一定要把它修好.否则,不但那些外国人要讥笑我们,而且会使中国工程师失掉信心.①用_ldquo;_radic;_rdquo;画出带点字的正确读音.(2分)②从这段话中可以看出詹天佑在勘测线路时遇到( )险峻和( )恶劣这两方面的困难.(2分)③在原文中用_ldquo;_____rdquo;线画出詹天佑遇到困难时的想法.(2分)他的想法说明了什么?(2分)____________________________________________七课外阅读(共12分)三个和尚1 一个活泼伶俐的小和尚来到山上的一座庙宇,他勤快地挑水,不但自己够喝,还往菩萨手中的净瓶灌水,瓶里的柳枝活了.不久,来了一个瘦和尚,他与小和尚为了喝水和挑水发生争执,谁也不愿意吃亏.后来又来了一位胖和尚,三个和尚都要喝水,但谁都不愿意挑水,没过两天,水缸露底了,净瓶中的柳枝也因没有水而开始枯萎了.2 一天夜里,三个和尚都在打盹的时候,一支正在燃烧的蜡烛被一只老鼠几口咬断了.半截蜡烛掉在香案上,庙宇起火了.危急之中,三个和尚一齐争先恐后挑水救火.一场大火很快被扑灭了.3 大火过后,三个和尚都明白了一个道理.从此水缸里的水又满了.三个和尚高兴地捧着大碗喝水.菩萨手中净瓶里的柳枝又亭亭而立了.1.用_ldquo;‖_rdquo;线给第一自然段分层(3分),并写出每层的主要意思.(3分)______________________________________________________________ __________________________________________________________________ ____________________________________2.联系上下文,解释下面词语的意思.(3分)争先恐后_mdash;_mdash;大火过后,三个和尚明白了一个道理.这个道理是:(在正确的答案后打_radic;)(3分)①大家都不打盹,就不会发生火灾.( )②人多了,就不好办事.( )③只要大家同心协力,共同劳动,就能办好事情.( )八作文.(30分)题目:一个________________________的人提示:①先将题目补充完整(如:受尊敬勤奋好学助人为乐诚实风趣_hellip;_hellip;)②要通过具体事例表现人物的性格特点或思想品质,注意写出真情实感.小学毕业语文模拟试卷(七)答案一 (思索) (问候) (计较)(热望) (委托) (感染)二 1.(Z) (弓) (4) (7)② ③2.(钓鱼) (妨碍) (询问)(鱼钩) (防卫) (审讯)三 1.(荣) (己) (盛) (悬)(骛) (简) (算) (瞻)好高骛远盛气凌人2.(严格) (不但) (而且)(夸奖) (优秀) (夸耀)四 1.①用_ldquo;参加_rdquo;换掉_ldquo;出席_rdquo;② 过去或往(只取一个)③句尾加_ldquo;的习惯_rdquo;.2.①海里的泥沙被澎湃的波涛卷到岸边.②人与山的关系日益密切,不能不使我们感到亲切舒服. (或真使我们感到_hellip;_hellip;)③爸爸辅导我学作文.五应用文张老师:我因患重感冒,不能到校上课,请假两天.您的学生李华5月10日六 1.①(_times;) ②(_radic;) ③(_times;) ④(_times;) 2.(晴) (泛)(阴) (添)(初夏) (晴) (阴)(新鲜喜悦)3.①s4i(_radic;) h2o(_radic;)②(地势) (气候)答:他的想法说明了他具有爱国主义精神.(或他热爱祖国.) 七课外阅读1..‖不久, .‖后来①小和尚挑水喝,还往净瓶里灌水,使净瓶里的柳枝活了.②瘦和尚和小和尚谁也不愿挑水.③三个和尚都不愿挑水,柳枝也枯萎了.2.庙宇起火的危急之中,三个和尚一齐争着向前唯恐落后挑水救火. 3.③(_radic;)八略。
2024年春季广东省高三语文高考模拟试卷(7)附答案解析
广东省普通高中学业水平模拟卷(七)语文试卷本试卷共 7 页,24 小题,满分 150 分。
考试用时 120 分钟。
一、本大题 11 小题,共 36 分。
(1-10 题每题 3 分,11 题 6 分)阅读下面文字,完成 1~3 题。
我不能想像这样一个人,他认为开棋的时候先走马而不是先走卒对他来说是英勇的壮举,而在象棋指南的某个□角里占上一席可怜的位置就意味着声名不朽,我不能想像,一个聪明人竟然能够在10年、20年、30年、40年之中一而再( )再而三地把他全部的思维能力都献给一种荒诞的事情——想尽一切办法把木头棋子王赶到木板棋盘的角落里,而自己却没有发狂成为疯子。
1.下列填入文中“□”处的字,使用正确的一项是( )A .奇B .犄C .琦D .绮2.下列依次填入文中“( )”处的标点,使用正确的一项是( )A .、—— B. , ——C .、 ,D ., ,3.下列对文中加点字的注音,正确的一项是( )A .z ú y ánB .c ù d ànC .c ù y ánD .z ú d àn4.下列句子中加点的成语运用恰当的一项是( )A.小张同志为人诚实,待人接物坦荡如砥,深得同事们好评。
B.一科室的小王整日忙个不停,连吃饭的时间也要处理工作上的事,真是日理万机啊!C.听证会上,面对专家们略带挑剔的提问,刘工程师胸有成竹,对答如流。
D.庆祝“五一”节的联欢会场张灯结彩,五光十色,好一派姹紫嫣红的景象。
5.下列各句中没有语病的一句是( )A .由于世界性能源危机,全球能源消耗总量剧增,煤和石油遭到掠夺性开采。
储量锐减。
B .现在有些网站可以提供免费的个人主页,你只要将个人信息公开放在指定的位置上.网民们就可以从中了解到你的个人情况。
C .我们要更加积极主动地正视矛盾、化解矛盾。
最大限度地增加和谐因素.减少不和谐因素,不断促进社会和谐是杜会发展的必然要求。
淮安市中考英语模拟试题7
江苏省淮安市中考模拟试卷(七)英语试题命题:辜从林本卷满分120分,考试时间120分钟第Ⅰ卷(选择题共55分)一、单项选择(共15小题;每小题1分,满分15分)( ) 1. — ______ are you going to Guangzhou?—I’m taking the plane.A. WhatB. WhyC. WhenD. How( ) 2. — Mary, is that umbrella ______?—No. It belongs to Jane.A. yourB. yoursC. herD. she( ) 3. — Can I help you, boy?—Yes. There is ______ wrong with my bike.A. somethingB. anythingC. everythingD. nothing( ) 4. —Why are you so happy, Henry?—My old friend David is coming to visit me. We haven’t seen each other ______ five years.A. sinceB. afterC. forD. in( ) 5. —What are you going to do this weekend?—I’m not sure ______. Maybe I am going swimming.A. alsoB. tooC. everD. yet( ) 6. —May I ______ the book from you?—Sorry. I have promised to ______ it to Tom.A. borrow; lendB. keep; lendC. lend; borrowD. keep; borrow( ) 7. — ______ you visit Beijing during your holiday?—No. I ______ to Hong Kong.A. Will; goB. Will; wentC. Did; wentD. Did; go( ) 8. Turn the computer off, Peter! You ______ play games so late any more.A. mustn’tB. needn’tC. have toD. might( ) 9. It began to rain ______ I was walking in the park.A. untilB. becauseC. whileD. although( ) 10. — What’s wrong with you, sir?— My flight ______ ten minutes ago. What should I do?A. took upB. took offC. got onD. got off( ) 11. — What nice coffee!—But I think it will taste ______ with sugar.A. wellB. badC. worseD. better( ) 12. Teachers will hardly use chalk in the future, ______?A. will heB. won’t heC. will theyD. won’t they( ) 13. — Everyone should help save the planet.—Yeah. I’ve stopped ______ plastic bags when shopping.A. to useB. usingC. useD. used( ) 14. — Can you sing this song in English?—Of course I can. It ______ often ______ by us kids.A. is; singingB. does; singC. has; sungD. is; sung( )15. —I hear Miss Wang will go boating with us this Sunday.— ______ We will have a good time.A. Good news!B. Thanks a lot.C. What a pity!D. Don’t mention it.二、完形填空(共15小题,每小题1分,满分15分)阅读下文,掌握其大意,然后从各题所给的四个选项中选出一个最佳答案。
2023学年高考语文模拟试卷7(含答案)
2023学年高考语文模拟试卷一、现代文阅读1.(9分)阅读下面的文字,完成下列各题。
最早的青铜器铭文非常简单,有的仅由一个或数个名词组成,稍复杂的也仅是一个主谓句。
商代晚期才有长篇铭文,其主要进步是能完整叙述一连串事件且有清晰的逻辑联系。
比如《小子卣》(出自《殷周金文集成》)铭文有四十七字,叙述的是青铜器主人参与一项军事行动有功,因而受到上级的赏赐,于是制作了青铜器,以祭祀、告慰其亡母。
显然,这类铭文的书写重心是“功勋”与“赏赐”,它代表着主人最有价值的荣誉,他希望通过青铜器铭文精确地传达给祖先或后世,因此,此类铭文的叙事往往是完整而逻辑严密的。
事实上,商周铭文绝大多数内容都是围绕这一主题展开的,因为对当时的贵族来说,用铭文记录其所建立的功勋和所受的封赏,不仅是其人生价值的展现,也是其家族政治地位的宣示。
由此可见,“三不朽”(立德、立功、立言)中“立功”的价值观有着深刻的社会政治基础,在青铜器铭文中也有充分的体现。
西周早期,出现了长达百字甚至数百字的篇章,不过大部分仍以记功、记赏为主。
但与此同时,也有部分铭文出现了变化,比如开始大量使用“引文”。
以西周早期的《大盂鼎》为例,这篇铭文除了开篇与结尾为常见内容外,正文以四个“王若曰”或“王曰”领起,详细记录了周王对青铜器主人的训话,其中既有对商周换代的经验总结,也有对周王及青铜器主人祖先功勋的称颂,还有对青铜器主人的夸赞、期许与封赏。
青铜器主人将此类言辞完整地书写于铜器之上,除了彰显其家族的荣誉外,显然也有传承历史经验的意图。
又如西周早期的《何尊》,铭文也如实记录了周武王初迁成周之后,对包括青铜器主人“何”在内的“宗小子”的一场训诰。
此外还有一种形式特殊的铭文,其全篇都包含在引文之内,实际上可视为大段言辞的抄录。
如西周早期的《沈子它簋》,全篇铭文都包含在由“它曰”领起的引文之内,且开篇即谓“拜稽首,敢敏昭告”,明确指出青铜器主人通过铭文进行“昭告”的意图。
大学英语四级模拟试卷之七
大学英语四级模拟试卷7Part Ⅰ Writing1、Directions: For this part, you are allowed30 minutes to write a composition of at least 120 words on Can Money Buy Happiness?Part Ⅱ Listening ComprehensionSection A2、A. Islamist militants are still in control of the town.B. French forces have entered the town.C. Islamist militants are attacking the airport.D. French forces are going to land at the airport.3、A. To control Kidal airport.B. To protect the capital Bamako.C. To protect the town.D. To fight against Islamist militants.4、A. 20%. B. 70%. C. 80%. D. 17%.5、A. Decreasing the stock for food.B. Adjusting the food production scale.C. Cultivating more lands to grow.D. Encouraging speculation in the food market.6、A. Chances of guessing the correct lotto numbers.B. Rossi's dreams about winning the lotto.C. People's madness for lotto games in Italy.D. Foreigners' visit to Italy for the lotto drawings.7、A. A huge amount of money. B. Free flights to Italy. C. A free tour in Europe.D. Tickets for the lotto games.Section B8、A. A physics exam. B. A lecture they plan to attend.C. An assignment.D. Their favorite poets.9、A. Listen to the woman's talk. B. Study for a test.C. Go to class.D. Prepare his presentation.10、A. In the library. B. In the woman's dormitoryC. In an empty classroom.D. In the dining hall.11、A. The space is big enough. B. There are many students there.C. It is much quieter than other places.D. It is more close.12、A. Garbage.B. Plastic meal-boxes.C. Used batteries.D. Disposable wooden chopsticks.13、A. They are describing a new dustbin.B. They are discussing the protection of environment.C. They are collecting used batteries.D. They are looking forward to attending a lecture.14、A. To make full use of the metals left.B. To protect the forest resources from being destroyed.C. To call for stopping using plastic meal-boxes.D. To awaken people to the environmental problems.15、A. She will attend the lecture.B. She will draw up a program.C. She will join the "Green Movement".D. She is not sure what she will do.Section C16、A. Summer vacation.B. The housing office.C. Resident advisers.D. Check-out procedures.17、A. Register for summer school.B. Repair holes in room walls.C. Remove personal property.D. Call the housing office.18、A. Their summer addresses.B. Any damage to their rooms.C. When they plan to leave.D. Questions for the housing office.19、A. The head of the Alumni Office.B. A doctor.C. A professor of business administration.D. A student from last year's program.20、A. Medical interns.B. Undergraduate students.C. Local business executives.D. Alumni sponsors.21、A. They give money to sponsor the program.B. They write letters of recommendation.C. They provide job opportunities.D. They work for the Alumni Office.22、A. Pot using. B. Wet cloth. C. Sand. D. Temperature.23、A. People who eat spoiled food may get sick.B. Farmers have to throw away spoiled products.C. Farmers have to sell the spoiled products quickly at a low price.D. People need money to dispose of the spoiled food.24、A. By electricity.B. Through an evaporation process.C. Through a freezing process.D. With the help of some special bacteria.25、A. He sold his invention to make money.B. He preferred invention to teaching.C. He was honored with an award for his teaching methods.D. He financed 5000 pot-in-pot systems to help people.Part Ⅲ Reading ComprehensionSection ADirections: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.One in six. Believe it or not, that's the number of Americans who struggle with hunger. To make tomorrow a little better, Feeding America, the nation's largest 26 hunger-relief organization has chosen September as Hunger Action Month. As part of its 30 Ways in 30 Days program, it's asking 27 across the country to help the more than 200 food banks and 61,000 agencies in its network provide low-income individuals and families with the fuel they needto 28 .It's the kind of work that's done every day at St. Andrew's Episcopal Church in San Antonio. People who 29 at its front door on the first and third Thursdays of each month aren't looking for God—they're there for something to eat, St. Andrew's runs a food pantry (食品堂) that 30 thecity and several of the 31 towns. Janet Drane is its manager.In the wake of the 32 , the number of families in need of food assistance began to grow. It is 33 that 49 million Americans are unsure of where they will find their next meal. What's most surprising is that 36% of them live in 34 where at least one adult is working. "It used to be that one job was all you needed," says St. Andrew's Drane. "The people we see now have three or four part-time jobs and they're still right on the edge 35 ."A. surviveB. surroundingC. servesD. reviewedE. reportedF. recessionG. householdsH. gatherI. formally J. financially K. domestic L. competitionM. communities N. circling O. accumulateSection BDirections: In this section, you are going to read a passage with ten statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a paragraph more than once. Each paragraph is marked with a letter. Answer the questions by marking the corresponding letter on Answer Sheet 2.Want to Learn Quicker? Use Your BodyA. Ever dealt with a problem? Picked up a new skill? Grasped a difficult concept? The language of learning is full of references to parts of the body outside the brain. Researchers discover that learning is easier, quicker and more long-lasting if lessons involve the body as well as the mind—whether it's gesturing with the arms or moving around a room. Can these insights enhance teaching and learning in the future? And should it inform the way technology is employed in the classroom?B. "In the past, people have argued that as we learn we become more able to think abstractly," says Andrew Manches, a psychologist at the University of Edinburgh in the UK. Conventional thinking might suggest that teachers should help children get rid of physical objects and body gestures to prepare them for the adult world. But in truth, the physical world never really leaves our thinking. For example, when we process verbs such as lick, kick and pick, medical scanners show that the parts of our brain that control the muscles in our face, legs and hands, respectively, light up with activity. And even the most abstract of concepts may have grounding in the real world.C. Body and mind—This theory is called embodied cognition(体验认知), and it suggests that what goes on in our minds stems from our actions and interactions with the world around us. It means that encouraging children to think and learn in a purely abstract way might actually make lessons harder for them to understand and remember. Science is beginning to back up the idea that actions really might speak louder than words in the classroom.D. Spencer Kelly, a psychologist at Colgate University in Hamilton, New York, has found that people spend three times as much time gesturing when they think it is particularly important that they get a message across, suggesting that even at the subconscious level, we appreciate the communicative value of our body language. Studies show that young children learn more if their teacher uses gestures when explaining a concept.E. Meanwhile, Susan Wagner Cook, a psychologist at the University of Iowa in Iowa City, has found that children pick up new concepts more effectively if they are taught to mirror and repeat the gestures their teacher uses, and that lessons involving words and gestures live longer in a student's memory than lessons using words alone.F. There's a place for technology—particularly with the rise of gesture-recognition devices like the Nintendo Wii (任天堂游戏机), Microsoft's Kinect add-on (外设设备) for the Xbox and touchscreen tablet PCs. Researchers at the University of California, Berkeley, turned two Wii-mote video game controllers into a device that helps children visualize equivalence ratios (等值比)—for instance, understanding how if one plant grows twice as fast as another, the difference between their respective heights will become larger over time. This can be a tricky concept for children to understand. When asked to use their hands to represent the different growth rates, some students will place one hand slightly higher than the other, but then raise both hands at the same speed. The Berkeley team's device gives the children instant feedback, helping them work out when their hand gestures correctly match what would happen as the two plants grow. Afterwards, almost allstudents say that they actually understand why moving their hands at different speeds is the correct response.G. The Kinect sensor, meanwhile, is being used in studies to help children learn to more accurately map numbers onto physical space—a simple skill but one that is fundamental to our understanding of mathematics. Most people know, for instance, to place the number 50 exactly midway along a line marked "0" at one end and "100" at the other. Researchers at Eberhard Karls University in Tuebingen, Germany, found that seven-year-olds can place numbers along such a line more accurately if they physically walk the line on the floor—with their motion captured and analysed by the Kinect sensor-than if they use a mouse to interact with a computer screen representation of the line. Manches has begun exploring whether Kinect offers a way to re-imagine traditional children's blocks(积木). The technology allows children to pick up and manipulate virtual blocks on the screen using the same gestures they would use to play with real blocks—but the virtual blocks can do new things like change colour as they are pulled apart into smaller units, giving children fresh ideas about the way numbers can be broken down.H. In light of all this, it's tempting to conclude that teachers, and their students, should be jumping up and down, or waving their arms about during lessons. Manches, however, advises caution. The trouble is, science has not quite worked out exactly how the relationship between body and mind effects work. "You can't jump into the prediction and intervention stage too early," says Manches.I. This isn't to say there aren't working theories for what's going on, particularly when it comes to understanding why gesturing helps store information more firmly in the mind, says Cook. The lessons we learn at school usually involve declarative memory(陈述性记忆)—these are the facts that we can consciously recall or "declare" at a later date. But some of our memories arenon-declarative—things we can remember without really being able to explain why.J. The classic example is how we never really forget how to ride a bike. Physical movements seem to be particularly suitable fodder(素材) for making non-declarative memories, and so by both speaking and gesturing, we may encourage our brains to make two independent memories of an event, boosting our chances of remembering the event later.K. Even though researchers like Manches and Cook remain reluctant to set out prescriptive guidelines for teachers, their caution is beginning to weaken. "Five years ago I might have said there's potential for real harm in giving teachers instructions from this research," says Cook. Today, she is less worried of the potential to do damage—in part because none of her studies to-date has uncovered any evidence of side effects.36、Based on the theory of embodied cognition, science is starting to pay more attention to the importance of actions in the classroom.37、Researchers find that the involvement of both the mind and the body can make learning easier and quicker.38、The knowledge we get from school often has to do with declarative memories.39、Contrary to conventional thinking, the physical world is closely linked with our thinking.40、Our brain can make two independent memories of an event through language and action.41、Young students can learn more if their teacher uses gestures when explaining a concept.42、Seven-year-olds can put numbers along a certain line more accurately if they actually walk the line.43、Up to now, Cook's studies have not shown any evidence of side effects.44、Manches warns that we should enter prediction and intervention stage when it is the right time.45、A student can remember for a longer time lessons using words and gestures than lessons involving words alone.Section CDirections: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.Passage OneSalt is a principal wicked substance. Salt, sodium chloride(氯化钠), 40 percent of which is sodium(钠), is an element essential to human body. But sodium also boosts blood pressure. It makes the body retain fluids; greater fluid retention increases total blood volume, and this increase raises blood pressure. Where salt is used freely, a large proportion of the population develops chronic high blood pressure, which is a primary factor in heart disease and stroke. Farmers in northern Japan traditionally preserve their food with salt. They consume as much as six teaspoons a day—and 40 percent of them have high blood pressure. Among the Eskimos of Greenland, however, who consume little salt, high blood pressure is almost unheard of.The body of an adult needs only about 200 milligrams of sodium a day—the amount in 500 milligrams, or 1/10 of teaspoon, of salt. But the average American consumes about 12,000 milligrams, or more than two teaspoons, of salt a day—which supplies 24times as much sodium as necessary; Germans consume an average 5,300 milligrams of salt a day. A sharp reduction is recommended by authorities everywhere—to about 8,000milligrams of salt per day for healthy people. For those who already suffer from high blood pressure, the normally suggested maximum is about 2,000 milligrams per day;more drastic restrictions—to about 200 milligrams—are required in special cases.However, if this recommendation is adopted, food will become almost insufferably bland for most Americans and Europeans. So some physicians prescribe as a replacement seasoning potassium chloride (氯化钾), which tastes salty but contains no sodium. Meanwhile, it should also be taken into account that extremely heavy use of potassium unlikely because of its unpleasant taste in large doses—can cause death. Hence, the substitution of one chloride for the other should be undertaken only on the advice of a doctor.46、Which of the following is the main topic of the passage? ______A. The difference between sodium chloride and potassium chloride.B. The function of slat in daily life.C. A comparative study of slat consumption habits in some countries.D. The relationship between salt consumption and high blood pressure.47、According to the passage, which of the following is NOT true about the function and nature of slat? ______A. It is composed of sodium and chloride.B. It helps the body to keep fluid substance.C. Too much salt consumed can lead to high blood pressure.D. It is the direct cause of heart diseases.48、According to the passage, how much sodium do farmers in northern Japan consume each day? ______A. 8000 milligrams.B. 30000 milligrams.C. 12000 milligrams.D. 5000 milligrams.49、What does the underlined word "bland" in the last paragraph is closest in meaning to which of the following words? ______A. saltyB. tastelessC. deliciousD. dull50、What is the major reason why some doctors give patients potassium chloride? ______A. It is used as medicine.B. It contains no sodium.C. It makes food tasty.D. Human body can easily absorb potassium chloride.Passage TwoWhat are feelings for? Most non-scientists will find it a strange question. Feelings .justify themselves. They need serve no other purpose in order to exist. On the other hand, many evolutionary biologists, in contrast to animal behaviorists, acknowledge some emotions areprimarily for their survival function. For both animals and humans, fear motivates the avoidance of danger, love is necessary to care for young, and anger prepares one to hold ground. But the fact that a behavior functions to serve survival need not mean that; that is why it is done. Other scientists have attributed the same behavior to conditioning, to learned responses. Certain reflexes and fixed action patterns can occur without feelings or conscious thought. A gull chick pecks at a red spot above it. The parent has a red spot on its bill (喙); the chick pecks the parent's bill. The gull parent feeds its chick when pecked on the bill. The baby gets fed. The interaction need have no emotional content.At the same time, there is no reason why such actions cannot have emotional content. In mammals—including humans—that have given birth, milk is often released automatically when a new baby cries. This is not under voluntary control; it is reflex. Yet this does not mean that feeding a new baby is exclusively reflex and expresses no feeling like love. Humans have feelings about their behavior even if it is conditioned or reflexive. Yet since reflexes exist, and conditioned behavior is widespread, measurable, and observable, most scientists try to explain animal behavior using only these concepts. It is simpler.Preferring to explain behavior in ways that fit scientific methods most easily, scientists have refused to consider any causes for animal behavior other than reflexive and conditioned ones. Scientific orthodoxy (_正统观念) holds that what cannot be readily measured or tested cannot exist, or is unworthy of serious attention. But emotional explanations for animal behavior need not be impossibly complex or unstable. They are just more difficult for the scientific method to verify in the usual ways, cleverer and more sophisticated approaches are called for. Most branches of science are more willing to make successive approximations (近似值) to what may prove ultimately unknowable, rather than ignoring it altogether.51、What do many evolutionary biologists believe?A. Some emotions do not exist.B. Emotions are helpful for people's survival.C. Emotions give meaning and depth to life.D. Only humans have emotions.52、What can we learn from the example of a gull chick pecking the parent's bill?A. Behaviors can be learned and have no emotional content.B. It is the innate characteristic for adults to look after the young.C. It takes time for animals to be conditioned.D. Emotions are very important to survival.53、Why does the author think most scientists explain animal behavior in terms of reflexes and conditioning?A. They are the most essential factors for animals to surviveB. They are important for animals to develop learned and emotional behaviorsC. They are convenient for scientists to explain animals' behaviorD. They will lead to a better understanding of animal emotions54、What should scientists do to study animal emotions?A. They should set up improved and refined skillful experiments.B. They should analyze human emotions.C. They should distinguish what is emotional and what is conditioned.D. They should learn from animal behaviorists.55、What is the author's main purpose of writing this passage?A. To make the point that emotions are worth our attention.B. To explain what reflexive behavior is.C. To compare human emotions with animal emotions.D. To discuss the importance of emotions.Part Ⅳ TranslationDirections: For this part, you are allowed 30 minutes to translate a passage from Chinese into English. You should write your answer on Answer Sheet 2.56、泰山位于山东省西部。
普通话水平测试模拟试卷(七)
普通话水平测试模拟试卷(七)一、读单音节字词准骗娘广日波选鬓霜耳峰盆厢褶恰胎臣拐粤嘴荡慌算砷永如捺魂款绪碟粪棱均特栽抵膜钩防洛雨圣偷暮晚字争筹刮范夕井涉评北型四绒氨怀袄云伙坝纠犁缺伍襟掉趴草瞥括粗填蹿穷黑潮伞浓巧王买流娶鼻吃廊踩葬唇甲坠栋烤抓院二、读多音节词语英雄群体候鸟协商首饰柔软刺激跑腿儿夸张状况而且下降男女镇压坎肩儿全面扫帚工作画外音差别虐待衰老训练聪明课本红包儿谬论回归富翁所有制强度断层表皮盖子长城顶点合同掠夺挨个儿佛法赞美消费速率恩情窘迫问卷人民不以为然三、朗读短文在里约热内卢的一个贫民窟里,有一个男孩子,他非常喜欢足球,可是又买不起,于是就踢塑料盒,踢汽水瓶,踢从垃圾箱里拣来的椰子壳。
他在胡同里踢,在能找到的任何一片空地上踢。
有一天,当他在一处干涸的水塘里猛踢一个猪膀胱时,被一位足球教练看见了。
他发现这个男孩儿踢得很像是那么回事,就主动提出要送给他一个足球。
小男孩儿得到足球后踢得更卖劲了。
不久,他就能准确地把球踢进远处随意摆放的一个水桶里。
圣诞节到了,孩子的妈妈说:“我们没有钱买圣诞礼物送给我们的恩人,就让我们为他祈祷吧。
”小男孩儿跟随妈妈祈祷完毕,向妈妈要了一把铲子便跑了出去。
他来到一座别墅前的花园里,开始挖坑。
就在他快要挖好坑的时候,从别墅里走出一个人来,问小孩儿在干什么,孩子抬起满是汗珠的脸蛋儿,说:“教练,圣诞节到了,我没有礼物送给您,我愿给您的圣诞树挖一个树坑。
”教练把小男孩儿从树坑里拉上来,说,我今天得到了世界上最好的礼物。
明天你就到我的训练场去吧。
三年后,这位十七岁的男孩儿在第六届足球锦标赛上独进二十一球,为巴西第一次捧回了金杯。
一个原∥来不为世人所知的名字——贝利,……四、命题说话1.我喜爱的文学(或其他)艺术形式2.我的朋友。
人教版2020年小升初数学模拟试卷(7) 参考答案与试卷解析
人教版2020年小升初数学模拟试卷(七)一.填空题(共10小题,满分24分)1.(3分)三千零五十万四千九百写作,改写成以万为单位,省略万后面的尾数约是万.2.(3分)13千克50克=千克3.1时=时分3.(5分)0.6==30÷=:=% 4.(2分)用150厘米长的铁丝做一个长方形的框架.长与宽的比是3:2,这个长方形的长是厘米,宽是厘米.5.(2分)把一根长3米长的铁丝等分成几段,3次分完,这样的一段是原来铁丝的,两段长米.6.(2分)6和8的最小公倍数是,8和16的最大公因数是.7.(1分)小红画圆时,圆规两脚叉开的距离是3cm,画出的圆直径是cm.8.(1分)一个钟面,时针长5cm,分针比时针长1cm,时针和分针各走一圈,它们扫过的面积相差cm2.9.(4分)0.59的计数单位是,它有个这样的计数单位;3的分数单位是,再添上个这样的计数单位就是最小的合数.10.(1分)我们学过+、﹣、×、÷这四种运算.现在规定“※”是一种新的运算,A※B表示2A+B,如4※3=4×2+3=11,那么4※5※6=.二.判断题(共5小题,满分5分,每小题1分)11.(1分)一个数的倍数一定大于这个数的因数.(判断对错)12.(1分)a和b是非0自然数,如果a=7b,那么a和b的最小公倍数是a.(判断对错)13.(1分)圆的半径扩大到原来的2倍,周长和面积也扩大到原来的2倍(判断对错)14.(1分)如果两个梯形的高相等,它们就一定可以拼成一个平行四边形..(判断对错)15.(1分)把一根底面半径2分米的圆柱截成2段,表面积增加平方分米,这个圆柱的底面周长是分米.三.选择题(共5小题,满分5分,每小题1分)16.(1分)算式72÷8×7可以改写成()A.72÷B.72×C.72×D.72﹣17.(1分)下面的数据,()适合用折线统计图表示.A.本年级各班人数B.一年内气温的变化情况C.女生人数占全校人数的百分之几18.(1分)一根绳子剪成两段,第一段是全长的,第二段是m,哪段长?()A.一样长B.第一段长C.第二段长D.无法确定19.(1分)张师傅生产一个零件用小时,李师傅生产一个相同的零件用小时,张师傅与李师傅的工作效率的比为()A.B.C.2:3 D.3:220.(1分)把一个长为2毫米的零件画在图纸上,在图纸上量得这个零件长2分米,求这幅图纸的比例尺是()A.1:100 B.1:1 C.100:1 D.100四.计算题(共3小题,满分30分,每小题10分)21.(10分)直接写得数2.4÷0.6=77﹣0.7=0.25×0.8=0÷2.6=30÷20%=16×25%=﹣=3﹣﹣=×3= 2.9+1=22.(12分)计算下面各题,能简算的要简算.7.28﹣(1.25+0.28)0.25×38+62÷4()÷[0.75×()]23.(8分)解方程.6(x+3.5)=21.63x﹣54=21.6x﹣0.36x=1.6五.操作题(共3小题,满分16分)24.(4分)德凯小学开展体育活动,小明对五(1)班同学的锻炼情况做了统计,并绘制了下面两幅统计图.(1)五(1)班参加体育锻炼的有人,参加的人数最多.(2)根据条件把条形统计图补充完整.25.(6分)根据要求画图(1)以L为对称轴,画出图形A的另一半,使它成为轴对称图形.(2)图形B是图形D先向右平移3格,然后以O点为中心逆时针旋转90°得到的,请画出图形D.26.(6分)你知道吗?玲玲从家向北偏东30°方向行走400米到达车站,又向东偏南45°方向行走300米到达邮局,最后向东偏北60°方向行走500米到达学校.(1)根据上面的描述,把玲玲上学的路线补充完整.(2)根据路线图,说一说玲玲放学回家时要怎么走?六.填空题(共2小题,满分4分,每小题2分)27.(2分)一台收割机小时收割小麦公顷,这台收割机平均每小时收割小麦公顷,收割1公顷小麦需要小时.28.(2分)有一堆沙子,第一次拉走全部的,第二次拉走全部的30%,第一次比第二次多拉走36吨,第一次拉走多少吨?七.应用题(共6小题,满分26分)29.(4分)甲、乙两人打一份稿件,甲单独要3小时打完,乙单独要2小时打完.如果甲、乙两人合作打这份稿件,需要多少小时打完?30.(4分)榨油厂用300千克花生可以榨出39千克花生油,照这样计算,要榨出104千克油需要多少千克的花生?(用比例知识解)31.(4分)在圆柱体的体积推导过程中,把一个圆柱体平均分成若干等份,然后拼成一个近似的长方体(材料无损耗),拼成的长方体的长是6.28厘米,高是5厘米,这个圆柱体的体积是多少立方厘米?32.(4分)甲、乙两个工程队分别从两端修一条公路.甲队每天修53米,乙队每天修47米,16天修完.这条公路长多少米?33.(4分)有甲、乙两箱苹果,如果从甲箱取出10千克放入乙箱,则两箱相等:若从两箱各取出10千克,这时甲箱余下的比乙箱余下的多5千克,甲、乙两箱各有苹果多少千克?34.(6分)如图是用6个同样的牙膏盒拼成的图形,每个牙膏盒长22cm,宽和高都是4.5cm.(1)这些牙膏盒的体积是多少立方厘米?(2)这个图形的表面积是多少平方厘米?参考答案与试题解析一.填空题(共10小题,满分24分)1.解:三千零五十万四千九百写作:30504900;30504900≈3050万;故答案为:30504900,3050.2.解:(1)13千克50克=13.05千克(2)3.1时=3时6分.故答案为:13.05,3,6.3.解:0.6==30÷50=3:5=60%;故答案为:9,50,3,5,60.4.解:3+2=5150÷2=75(厘米)75×=45(厘米)75×=30(厘米)答:这个长方形的框架长是45厘米、宽是30厘米.故答案为:45,30.5.解:3+1=4(段)1÷4=3×=(米)答:这样的一段是原来铁丝的,两段长米.故答案为:,.6.解:8=2×2×2,6=2×3,最小公倍数是2×2×2×3=24;因为16是8的倍数,所以8和16的最大公因数是8.故答案为:24,8.7.解:3×2=6(厘米)答:画出的圆直径是6厘米.故答案为:6.8.解:5+1=6(厘米)3.14×52=78.5(平方厘米)3.14×62=113.04(平方厘米)113.04﹣78.5=34.54(平方厘米)答:它们扫过的面积相差34.54平方厘米.故答案为:34.54.9.解:0.59的计数单位是0.01,它有59个这样的计数单位;3的分数单位是,再添上2个这样的计数单位就是最小的合数.故答案为:0.01,59,,2.10.解:4※5※6=(4×2+5)※6=13※6=13×2+6=32故答案为:32.二.判断题(共5小题,满分5分,每小题1分)11.解:因为一个数的最大因数是它本身,最小的倍数是它本身,如12的最大因数是12,最小倍数是12,它的最大因数和最小倍数相等;所以一个数的倍数一定大于这个数的因数,说法错误;故答案为:×.12.解:由题意得,自然数a除以自然数b商是7可知a是b的倍数,所以a和b的最小公倍数是a,所以原题说法正确.故答案为:√.13.解:设原来圆的半径为r,则直径为2r,圆的周长为:2πr,圆的面积为:πr2,半径扩大2倍后,圆的半径为2r,圆的直径为4r,圆的周长为:4πr,圆的面积为:(2r)2π=4πr2,周长扩大到原来的:4πr÷2πr=2,面积扩大到原来的:4πr2÷πr2=4.答:周长扩大到原来的2倍,面积则扩大到原来的4倍.故答案为:×.14.解:两个完全一样的梯形,能拼成一个平行四边形.两个高相等的梯形,不一定完全一样,不一定能拼成一个平行四边形.故答案为:×.15.解:3.14×22×2=25.12(平方分米),3.14×2×2=12.56(分米),答:表面积增加25.12平方分米,这个圆柱的底面周长是12.56分米.故答案为:25.12;12.56.三.选择题(共5小题,满分5分,每小题1分)16.解:72÷8×7=9×7=6372÷=72×=6372×=72﹣=71只有选项B的运算结果与原算式相同,即算式72÷8×7可以改写成72×.故选:B.17.解:根据统计图的特点可知:A、本年级各班人数,选用条形统计图更合适;B、一年内气温的变化情况,选用折线统计图更合适;C、女生人数占全校人数的百分之几,选用扇形统计图更合适;故选:B.18.解:根据分成两段,第一段占全长的,则第二段占全长:1﹣=,因为>,所以这两段相比较,第一段长;故选:B.19.解::=2:3;答:张师傅与李师傅的工作效率的比为2:3.故选:C.20.解:2分米:2毫米=200毫米:2毫米=100:1答:这幅图纸的比例尺是100:1.故选:C.四.计算题(共3小题,满分30分,每小题10分)21.解:2.4÷0.6=4 77﹣0.7=76.30.25×0.8=0.20÷2.6=0 30÷20%=15016×25%=4 ﹣=3﹣﹣=2×3= 2.9+1=3.922.解:(1)7.28﹣(1.25+0.28)=7.28﹣0.28﹣1.25=7﹣1.25=5.75(2)0.25×38+62÷4=9.5+15.5=25(3)()÷=()×56=×56﹣×56=40﹣21=19(4)[0.75×()]=[0.75×]=÷=23.解:(1)6(x+3.5)=21.66x+21=21.66x+21﹣21=21.6﹣216x=0.66x÷6=0.6÷6x=0.1(2)3x﹣54=21.63x﹣54+54=21.6+543x=75.63x÷3=75.6÷3x=25.2(3)x﹣0.36x=1.60.64x=1.60.64x÷0.64=1.6÷0.64x=2.5五.操作题(共3小题,满分16分)24.解;(1)20÷40%=50(人)观察扇形统计图发现参加篮球锻炼的人数最多;即:五(1)班参加体育锻炼的有50人,参加篮球的人数最多.(2)足球:50×20%=10(人)其它:50×30%=15(人)乒乓球:50×(1﹣40%﹣30%﹣20%)=50×10%=5(人)统计图如下:故答案为:50,篮球.25.解:(1)、(2)画图如下,26.解:(1)因为图上距离1厘米表示实际距离100米,则400÷100=4(厘米)300÷100=3(厘米)500÷100=5(厘米)所以画出玲玲上学的路线图如下:(2)玲玲放学回家时向西偏南60°方向行走500米到达邮局,再向西偏北45°方向行走300米到达车站,向南偏西30°方向行走400米到达玲玲家.六.填空题(共2小题,满分4分,每小题2分)27.解:==(公顷)1=1×=(小时)答:这台收割机平均每小时收割小麦公顷,收割1公顷小麦需要小时.故答案为:;.28.解:36÷(﹣30%)×=36÷(50%﹣30%)×=36÷0.2×=180×=90(吨)答:第一次拉走90吨.七.应用题(共6小题,满分26分)29.解:1÷(+)=1÷=1×=1.2(小时)答:甲、乙两人合作打这份稿件要1.2小时打完.30.解:设要榨出104千克油需要x千克的花生,39:300=104:x39x=300×10439x=31200x=800答:要榨出104千克油需要800千克的花生.31.解:6.28×2÷3.14÷2=12.56÷3.14÷2=4÷2=2(厘米),3.14×22×5=3.14×4×5=62.8(立方厘米),答:这个圆柱的体积是62.8立方厘米.32.解:(53+47)×16=100×16=1600(米)答:这条公路长1600米.33.解:设乙箱苹果有x千克,则甲箱有(x+10×2)千克.(x﹣10)×=(x+10×2﹣10)×﹣5(x﹣10)×=(x+10)×﹣5x﹣=x+3﹣5x﹣﹣x=x+3﹣5﹣xx﹣=3﹣5x﹣+=3﹣5+x=x÷=÷x=4040+10×2=40+20=60(千克)答:甲箱有60千克苹果,乙筐有40千克苹果.34.解:(1)(22×2)×(4.5×3)×4.5=44×13.5×4.5=2673(立方厘米)答:这些牙膏盒的体积是2673立方厘米;(2)[(22×2)×(4.5×3)+(22×2)×4.5+(4.5×3)×4.5]×2 =(594+198+60.75)×2=852.75×2=1705.5(平方厘米)答:这个图形的表面积是1705.5平方厘米.。
公共危机管理模拟试题七
模拟试卷七班级: 姓名: 学号:一、单项选择题(本大题共10道小题,每小题1分,共10分)1、自然灾害的应急救助是以( )为基本行政单元实施灾情管理。
A 乡镇级 B 县级 C 地市级 D 省级2、一级响应只需要满足下面选项中哪一条就可以? ( )A 、死亡200人以上B 、紧急转移安置10万人以上,少于90万C 、倒塌(严重损坏房屋)5万间以上,少于15万间D 、死亡人口100人以上,200人以下3、重大、较大、一般事故,负责事故调查的人民政府应当自收到事故调查报告之日起( )日内做出批复;特别重大事故,30日内做出批复,特殊情况下,批复时间可以适当延长,但延长的时间最长不超过30日。
A 、15B 、18C 、10D 、204、下列不属于公共卫生事件特点的是( )。
A 成因的多样性B 传播的广泛性C 分布的差异性D 治理的单一性5、突发公共卫生事件监测与报告信息管理遵循( )的原则。
A 、早期发现、早期报告和早期处置B、网络直报、分层管理、逐级审阅、分级处置C、共同参与、协调配合D、动员社会力量、加强国际合作6、能否处理好突发社会安全事件的关键原则是()。
A、以人为本原则B、尽早化解原则C、依法处理原则D、当地领导负责原则7、突发社会安全事件一旦发生,首先要做的就是()。
A、领导与群众直接对话B、迅速控制事态C、主导舆论导向D、动用武装力量8、当前,国际反恐的主导是()。
A、八国集团B、欧安组织C、上海合作组织D、联合国9、制定公共危机应急救援预案的基础是()。
A、现场调查B、开展重大危险源普查C、事故等级和类型的划分D、应急响应机制10、公共危机管理法制的特点表现在内容和对象的综合性、边缘性、(),实施过程具有很强的行政紧急性,立法目的上更强调对权利的保障性以及法律制裁具有更大的严苛性。
A、程序上的法律性B、执行上的严格性C、措施上具有明显的政策性D、适用上的临时性和预备性二、多项选择题(本大题共5道小题,每小题2分,Array共10分)1、现行的突发事件应对的体制、机制和制度存在的不足有()A、应对突发事件的责任不明确B、统一协调、灵敏应对突发事件的体制没有形成C、应对突发事件能力不够强,危机意识不够高D、依法可以采取的应急处置措施不充分、不得力2、《突发事件应对法》有关预防和应急准备的制度,包括()A、规定国家建立重大突发事件风险评估体系B、建立了处置突发事件的组织体系、应急议案体系C、建立突发事件监测网络、预警机制、信息收集报告制度D、建立了社会大众学习安全知识,并参加应急演练的制度3、最小代价原则的要求包括()A、前提是保障人的生命健康优先权B、要把对自由权和财产权的损害控制到最低的限度C、坚持常态措施用尽原则D、要把对正常的生产、学习、工作和生活秩序的影响控制在最小范围4、下面说法正确的是()A、综合协调包括政府的协调和办事机构的协调B、分类管理是按照突发事件的不同特性实施相应的管理C、分级负责是指突发事件应对工作由不同层级的政府负责D、任何突发事件都必须要坚持属地管理为主5、建立信息报告机制包括()A、建立应急报告制度B、建立举报制度C、建立信息分析制度D、建立信息发布制度三、判断题(本大题共10道小题,每小题2分,Array共20分)1、()从业人员不需要接受安全生产教育和培训,掌握安全知识,提高安全生产技能,增强事故预防和应急处理能力。
2024-2025学年统编版语文七年级(上)第一次月考模拟试卷(7)
2024-2025学年统编版语文七年级(上)第一次月考模拟试卷(7)试卷满分:100分考试时间:120分钟日期:2024.10 姓名:班级:得分:一、积累运用(30分)1.(4分)给下列语段填上适合的汉字或拼音。
(1)鸟儿将窠巢安在繁花嫩叶当中,高兴起来了,呼朋引伴地卖弄清脆 hóu 咙。
(2)在南国,当冬雨在头顶上瓢落的时候,似乎又降临了一种特殊的温暖,那种清冷是柔和的,没有北风那样咄.咄逼人。
(3)四面都还是严冬的肃杀,而久经 jué别的故多的久经逝去的春天,却就在这天空中荡漾了。
(4)“少焉,月出于东山之上,徘.徊于于斗牛之间。
白露横江,水光接天…”苏东坡笔下的月景清丽绝伦,引人入胜。
2.(2分)下列句子中,加点的词语使用恰当的一项是()A.江苏省第十九届运动会21日在扬州开幕,我校区50名同学有幸莅临现场观摩了演出。
B.尽管计算机是高科技工具,但拥有它并不意味着工作都可以事半功倍。
C.部分网络文学对中学生的作文产生了很大影响,一些学生常常不自觉地模仿,写一些内容空泛、文体模糊的“异文”,令人叹为观止。
D.早春天气乍暖还寒,早晨走在乡间小路上,春风吹来让人不寒而栗。
3.(2分)下面句子没有语病的﹣项是()A.“三水讲堂”增加了与会者发言环节,每位发言者发言时间最多不超过30分钟左右。
B.为降低交通噪音对环境的影响,我国科研人员制定了总平面防噪音方案。
C.随着电脑文字录入技术的应用,使人们逐渐不喜欢用笔写字了。
D.报刊、电视、网络等宣传媒体,更有责任作出表率,杜绝用字不规范现象不再发生。
4.(2分)下列说法不正确的一项是()A.《散步》描写了一家三代人散步时,出现矛盾,终归于和谐的平常小事。
这个故事,是对中华传统美德中“孝敬”“慈爱”观念的形象诠释。
B.《秋天的怀念》是史铁生怀念已故母亲的一篇散文,启发读者要坚强的面对生活。
C.《金色花》与《荷叶母亲》都是以表达对母亲的爱恋为主题的散文诗,前者借助金色花的形象来抒发母亲和孩子之间真挚的爱;后者以花映人,抒发女儿对慈母的眷眷依恋之情。
七年级下册期末语文模拟试卷(七)
七年级下册语文期末模拟试题(七)考试时间:120分钟满分:120分一、积累与运用(30分)1.下列加点字注音与字形全部正确的一项是()(3分)A.迸.溅(bìng)商酌.(zhuó)毡.鞋(zhān)赤裸.(luǒ)B.累赘.(zhuì)修葺.(róng)吞噬.(shì)忏.悔(chàn)C.取缔.(dì)炽.热(zhì)屏.障(píng)亘.古(gèng)D.矜.持(jīn)沉淀.(diàn)厄.运(è)羸.弱(léi)2.下列词语中没有错别字的一项的是()(3分)A.一以惯之颠沛流离以身作则仙露琼浆B.耀武扬威悲天悯人忧心忡忡心有灵樨C.不耻下问诲人不倦忍俊不禁如释重负D.千钧重负海市蜃楼毛骨耸然惊心动魄3.下列各句中,没有语病的一句是()(3分)A.近年来,各大电视选秀层出不穷,不仅赚足了观众的“眼球”,而且创出收视率新高。
这不得不引起人们的思考和好奇。
B.扬泰机场从去年5月通航到今年2月底,旅客吞吐量已经达到33.5万人次,客座率保持在约70%左右。
C.语言是否通顺,是衡量一篇文章好坏的重要标准。
D.为了引导广大中学生学习理解习近平总书记对“中国梦”的深情阐释,共青团中央学校部联合语文报社、中文在线,特开展“我的中国梦”全国中学生读书征文。
4.诗文填空。
(8分)(1)斯是陋室,(2)予独爱莲之出淤泥而不染,(3)念天地之悠悠,(4)黄梅时节家家雨,(5),往来无白丁。
(6),决眦入归鸟。
(7),吟鞭东指即天涯。
(8),赚得行人错喜欢。
5.《海底两万里》是一部纯虚构的科幻小说,你觉得这部书最吸引你的地方是什么?书中哪些想像事物如今已经变成现实,通过这些事例你能看出科幻小说与科技发展的某些关系吗?(3分)6.某校七(1)班同学正在进行“漫游语文世界”的综合性学习,请你也参与到中间来。
七年级上册数学模拟试卷【含答案】
七年级上册数学模拟试卷【含答案】专业课原理概述部分一、选择题(每题1分,共5分)1. 下列哪个数是质数?A. 21B. 23C. 27D. 302. 如果一个三角形的两边长分别是8厘米和15厘米,那么第三边的长度可能是多少?A. 3厘米B. 10厘米C. 23厘米D. 17厘米3. 下列哪个数是偶数?A. 101B. 102C. 103D. 1044. 一个长方体的长、宽、高分别是10厘米、6厘米和4厘米,那么它的体积是多少?A. 240立方厘米B. 120立方厘米C. 60立方厘米D. 48立方厘米5. 下列哪个分数是最简分数?A. 2/4B. 3/6C. 4/8D. 5/10二、判断题(每题1分,共5分)1. 任何偶数都是2的倍数。
()2. 0是最小的自然数。
()3. 一个三角形的内角和等于180度。
()4. 两个质数相乘,它们的积一定是合数。
()5. 所有的偶数都是正数。
()三、填空题(每题1分,共5分)1. 6的倍数有:____、____、____、____、____。
2. 下列各数中,____是最大的质数。
3. 一个长方体的长、宽、高分别是10厘米、6厘米和4厘米,那么它的表面积是____立方厘米。
4. 如果一个三角形的两个内角分别是30度和60度,那么第三个内角是____度。
5. 下列各数中,____是最小的合数。
四、简答题(每题2分,共10分)1. 请列举出前五个质数。
2. 请说明什么是长方体的体积。
3. 请解释什么是三角形的中位线。
4. 请简述分数的基本性质。
5. 请说明什么是因数和倍数。
五、应用题(每题2分,共10分)1. 一个长方体的长、宽、高分别是10厘米、6厘米和4厘米,求它的体积和表面积。
2. 如果一个三角形的两个内角分别是40度和100度,求第三个内角的度数。
3. 请将分数2/3、3/4、4/5、5/6按照大小顺序排列。
4. 请找出100以内的所有质数。
5. 请计算下列各数的因数:12、18、20、24、30。
河南省专升本(管理学)模拟试卷7
河南省专升本(管理学)模拟试卷7(总分:118.00,做题时间:90分钟)一、单项选择题(总题数:40,分数:80.00)1.社会系统学派认为应把组织看作一个协作系统,并由此列举出经理人员的职能有三:其一,维持组织的信息;其二,从组织成员处获得必要的服务;其三,建立组织目标。
该学派的代表人物是( )(分数:2.00)A.卡斯特B.米勒C.罗森茨韦格D.巴纳德√解析:解析:社会系统学派的创始人和代表人物是美国人切斯特.巴纳德。
社会系统学派认为,任何组织都包括三个要素:协作意愿、明确的目标和良好的沟通。
2.能够防止“彼得现象”的产生的管理人员的培训方法是( )(分数:2.00)A.设置代理职务√B.设计助理职务C.工作轮换D.工作丰富化解析:解析:本题考查管理人员培训的方法。
设置临时代理职务能有效防止“彼得现象”的发生。
3.英国古典经济学家亚当.斯密提出的哪一理论成为科学管理的重要理论基础( )(分数:2.00)A.劳动分工√B.差别计件工资制度C.均衡生产D.成本计量解析:解析:英国古典经济学家亚当.斯密在其代表作《国富论》中提出的劳动分工是科学管理理论的重要理论基石。
4.关于合乎道德的价值观,下列说法错误的是( )(分数:2.00)A.把遵守道德规范视作组织的一项责任B.不仅把人看作手段,更把人看作目的C.超越了法律的要求,能让组织取得卓越的成就D.不再考虑公司的经济利益√解析:解析:本题考查合乎道德的管理具有的特征。
合乎道德的管理的七个特征:①合乎道德的管理不仅把遵守道德规范视作组织获取利益的一种手段,而且更把其视作组织的一项责任;②合乎道德的管理不仅从组织自身角度,更应从社会整体角度看问题;③合乎道德的管理尊重所有者以外的利益相关者的利益;④合乎道德的管理不仅把人看作手段,更把人看作目的;⑤合乎道德的管理超越了法律的要求,能让组织取得卓越的成就;⑥合乎道德的管理具有自律的特征;⑦合乎道德的管理以组织的价值观为行为导向。
备战2023年中考牛津译林版英语模拟试卷(七)(附答案)
备战2023年中考牛津译林版英语模拟试卷(七)第一部分单项填空(共15小题;每小题1分,满分15分)1. We should plant more trees because they can keep the soil _____ place.A. toB. withC. inD. on2. A smile costs ________, but it gives so much. So we should learn to smile.A. nothingB. somethingC. anythingD. everything3. —How can Lucy say had words about me? I thought we were good friends. —Who told you that? True friends need ________.A. distanceB. courageC. trustD. shame4. Our teachers have been with us for nearly three years ________we came to junior high school. We should thank them for what they have done for us.A. untilB. beforeC. sinceD. while5. —________ is the population of China?—It's about 1.4 billion. I think it's becoming ________.A. What; more and moreB. How many; larger and largerC. What; larger and largerD. How much; smaller and smaller6. —Is it usually warm in Suzhou in April?—Yes. But it ________ be rather cold sometimes.A. mustB. shouldC. wouldD. can7. —Where did you go on holiday this summer? America?—You are ______. We went on a 10-day-tour in Canada.A. correctB. clearC. cleverD. close8. Zhouzhuang is not far from Jinxi,so you can visit both in a day.A. suddenlyB. hardlyC. easilyD. luckily9. —________ can you finish the report? —Maybe in three days.A. How soonB. How longC. How farD. How often10. I remembered ____ the door before I left the office, but forgot to turn off the light.A. lockingB. lockedC. to lockD. lock11. —What a mess your room is!—Sorry. I’m going to ________ right now.A. pick it upB. give it upC. tidy it upD. put it up12. It’s said that the result we are interested in ________ as soon as possible.A. announcingB. being announcedC. will be announcedD. will announce13. More and more couples would rather ________ a second baby ________ their first child can feel less lonely.A. have; in order toB. to have; in order toC. have; so thatD. to have; so that14. Could you explain why ________ for me next week’s Reading Festival?A. to recommend the bookB. you recommend this bookC. did you recommend this bookD. do you recommend this book15. —You have to believe in yourself. No one else will, if you don't.—________. Confidence is really important.A. It's not my cup of teaB. That's not the pointC. I don't think soD. I couldn't agree more第二部分完形填空(共10小题;每小题1分,满分10分)When I was a boy,I didn't have a smartphone. At that time,home computers weren't heard of, and our small television could only get one channel clearly. Yet, I was never 16 .I would ride my bike down the hills to feel the gentle wind on my face when17 arrived. When summer came,I spent most of my free time 18 . I never got sunburned because I was never out of the water long enough. When it was fall,my friends and I would play football for hours. We also liked to jump in the golden and red piles of 19 falling from trees. It was pretty interesting. The first snows of winter didn't stop the fun,either. My brothers and I would have 20 is and hike into the woods to cut down our Christmas tree.Those simple 21 always brought me so much happiness. There was 22 to be bored about because there was always something to do and 23 . Becausethe children of today are spending so much time 24 and so little time living, I feel a bit sorry for them.One thing I am sure of, though,is that even in this technological world,the simple pleasures of life can still make your soul quiet. A hug still 25 your heart.A walk in the woods still calms your mind. There're much more simple pleasures of life to enjoy than staying in the technological world.16. A. tired B. excited C. bored D. sad17. A. holiday B. weekend C. spring D. festival18. A. sailing B. swimming C. hiking D. climbing19. A. fruit B. wood C. leaves D. balls20. A. snowball B. football C. water D. sports21. A. lessons B. pleasures C. kindness D. fun22. A. everything B. something C. anything D. nothing23. A. learn B. share C. enjoy D. solve24. A. playing B. watching C. working D. resting25. A. breaks B. shakes C. brings D. warms 第三部分阅读理解(共12小题;每小题2分,满分24分)AYellow DressBy Janet LeeMary had a yellow dressBought from the department store.It looked as beautiful as the moon,And as bright as the sun.Mary wore all the timeThe yellow dress I felt so right.Every day from day to nightI saw her in the dress so bright."Buy me a yellow dress,"I cried to Mom and Dad,"As beautiful and brightAs the dress the girl living near has!"I cried and cried and cried,Until they said with sad eyes,"We need food for your baby sister,And clothes for your coming brother."Since then I've learnedMary's yellow dressIs better to dream ofThan to ask for.26. From the poem, we know that Mary and the writer may be .A. classmatesB. relativesC. neighborsD. sisters27. Why does the writer say, "Everyday from day to night/I saw her in the dress so bright"?A. The writer lived with Mary.B. The dress had sun shapes on it.C. The writer liked the dress very much.D. The dress was Mary's school uniform.28. What did the writer's parents mean by their words?A. They did not like the yellow dress.B. They did not have money for a dress.C. They already had a dress for her baby sister.D. They would ask Mary where to buy the yellow dress.BWho is the greatest teacher in Chinese history? You can' t think ofanyone else when you hear people read Confucius' 2,500-year-old words:“All study but no thinking makes people puzzled. Allthinking but no study makes people lazy.”September 28th was Confucius' birthday. He was born in the Kingdom of Lu,in today's Shandong Province. He had a hard child. His father died when he was only 3. His mother brought him up, As a child, he had to work to help his mother, butyoung Confucius didn’t give up studying. He visited many famous teachers and learned music, history, poetry and sports.Later, he became a teacher and started the first public school in Chinese history. At that time,only children from rich families could go to school if they wanted to learn. He had about 3,000 students in his lifetime.Chinese look upon Confucius as the greatest thinker and also the greatest teacher. For more than 2 , 500 years,Confucius' ideas have been around in people's everyday lives. Now they have gone far into Western countries and South Asia. People can still hear them today.Why are his ideas so popular? Confucius' most important ideas are kindness and good manners.Confucius said young people should take care of the old. A kind person should care for others. Be strict wish yourself, but be kind to others. As a great teacher, Confucius said that all should go to school if they wanted to learn. People use his ideas to help themselves and society. Now, more than 100 Internet websites are teaching people about Confucius and his ideas.29 .Why do we still remember Confucius today?A. Because he had about 3,000 students in his lifetime.B. Because he lived a poor life in his childhood.C. Because he had wise thoughts.D. Because he started the first public school in Chinese history.30. The underlined word "them" in the fourth paragraph refers to .A. the greatest thinker and teacherB. Confucius' studentsC. people in Western countries and South AsiaD. Confucius' ideas31. Which of the following is NOT Confucius' words?A. People should get education.B. The young should take care of the old.C. Be strict with yourself, but be kind to others.D. All study but no thinking makes people lazy.C“Disneyland Paris? You're not serious!” said Tim.“Yes,I am,”said Jenny. “Someone has donated money to the school for a Student of the Year Award.”Tim,Jenny and William were waiting for morning assembly to start. Everyone around them was talking about the Student of the Year Award.“How many people can go?”“I don't know,” said William,shrugging his shoulders. “Two maybe. Don't worry,Tim,if you win,it's OK for you to take me.”“Not likely,” said Tim.“That's enough talking,”said Mrs. Barrow. Arkwright School's new Head Teacher was standing on the stage in front of them. "Can I have your attention,please." she said. She was a small woman with a very powerful voice. When she spoke,the children fell silent.“I'm sure you have all heard about the new Arkwright School Student of the Year Award. Basically,we want you to think of an activity that will be good for both the school and the local community,” said Mrs. Barrow. “Whoever thinks of the best idea for a project will get our Student of the Year Trophy(奖杯)and a family ticket for four people to Disneyland Paris.”“That's it,” said Tim. “I'm going to be Student of the Year.”“Yes, you and two hundred others,” said William. The children were all talking now and it was very noisy.“And,I haven't finished talking yet, thank you,”said Mrs. Barrow. These children laughed and then they were silent again.“In addition to writing the plan, you actually have to do the project. We want to see results, not just ideas.”One or two children started to talk again. Mrs. Barrow raised her hand.“Some announcements.” she said. “Number One. Don't throw litter around the school and especially not in your classrooms. Some of the teachers are complaining.”“All of the teachers are complaining,” whispered William.“Sssh,” said Jenny.“Number Two. Please pay at the office if you are going ice skating on Saturday.”“Brrr. Too cold,” said William.“William. Shut up !” said Tim.“And,Number Three,one important thing from the police. There have been reports of thefts in the Wrightham area,and one of our students has lost his phone. Possibly someone stole it. So please be careful. Report any suspicious behaviour to your class teacher, to me,or to the police,and please don't try to catch the thief yourself.”“You behave very suspiciously, Tim,” said William. “I think I'll report you.”“Thanks, William,” said Tim. “I'm glad I've got a friend I can depend on!”32. How many people can go to Disneyland Paris if someone wins the Student of the Year Award?A. 1.B. 2.C. 3.D. 4.33. Where might the story happen?A. In the classroom.B. In the music room.C. In the school hall.D. At Disneyland.34. What does the underlined sentence in the last paragraph mean?A. Tim is happy to have a friend like William.B. William is really a good friend to depend on.C. It is helpful of William to report Tim to the police.D. Tim doesn't really think William can lie depended on.DHistory books tell us that the city of Rome was set up in 152 B. C. It's a fact,however,that by 100 A. D., Rome was the centre of a big empire. It was from Syria in the east to Spain in the west,from Britain in the north to Africa in the south. All or part of 27 of today's countries were included in the Roman Empire. All of their people were ruled by one government, that of Rome. All educated people spoke the same language, Latin. And one of the empire's outposts(前哨) was called Londinium. This unimportant town would later become London,England,and the, centre of another empire.The Roman Empire came to an end about 1 ,500 years ago. Yet in some ways it is still with us. Take the letters you are reading,for example,English,like many other languages,uses the Roman alphabet(字母) while also borrowing many words. The laws of many European countries are based on ancient Roman laws. Roman ruins(废墟)are seen throughout Europe,North Africa, and the Middle East. In some places,Roman roads and water courses are still in use. To this day, a European in North Africa is likely to be called "Roumi"- Roman. Even modern place names are often after Ancient Rome. Both Greece and Germany have the names given by the Romans rather than the names that their own people first called them.35. The main idea of Paragraph 2 is that Roman culture is .A. dead and doneB. still part of the presentC. based completely on languageD. unimportant to history36. What happened first?A. Londinium was an outpost.B. The Roman Empire fell apart.C. London became the centre of an empire.D. The city of Rome was founded.37. Which of the following is NOT true?A. In Europe, 27 countries had the same laws.B. In Europe, people still use Roman names in some places.C. We may see some remaining parts of Roman Empire in North Africa.D. Londinium became the centre of an empire after Roman Empire fell apart.第四部分词汇检测(共10小题;每小题1分,满分10分)38. The printer has become one of the most useful _________(机器)in the office.39. Every time I look at the photo, it ________ (使想起) me of the happy moment.40. Neither the driver nor the (乘客) were hurt in the car accident.41. You could see from his face that he was ________(撒谎).42. It might be several months before the problem is ________(解决).43. Let’s plan a surprising party for Mun’s ________(四十) birthday.44. Heart trouble is one of the most serious ________(原因) of death among old people.45. ―There are a lot of ________ of bike riding.―I agree. It's good for the environment and it saves money.46. --Jack, I'd like to have your views about my report.--Your report is _________ all praise.47. -Our project is almost finished, but our manager plans to change the design. -What? Changing the plan at this time is to cut the foot to ________ the shoe. 第五部分句子翻译(共5小题;每小题3分,满分15分)48. 随着时间的推移,中国正变得越来越富强。
2023年全国百校大联考高考生物模拟试卷(七)+答案解析(附后)
2023年全国百校大联考高考生物模拟试卷(七)1. 信阳毛尖茶是中国十大名茶之一,因其成品紧密如尖故名毛尖。
成品茶纯净清澈、香味持久,其中含有茶多酚、儿茶素、叶绿素、咖啡因、氨基酸、维生素等营养成分。
下列叙述正确的是( )A. 泡茶时各种营养成分以主动运输的方式通过细胞膜B. 茶树细胞叶绿体含有的色素中叶绿素a的含量最高C. 茶叶中的维生素D属于脂质,可以被苏丹Ⅲ染成橙黄色D. 成品茶叶中不含自由水,含有的氨基酸都是必需氨基酸2. 某小组为研究培养液脱气对酵母菌在培养初期产气量的影响,进行甲、乙两组实验,一段时间内结果如图所示,下列相关叙述错误的是( )A. 甲组是脱气后培养组,乙组是不脱气培养组B. 脱气和不脱气培养时酵母菌的呼吸方式相同C. 甲组可先把酵母菌培养液煮沸再冷却,然后加酵母菌D. 肌肉细胞在剧烈运动时的呼吸产物与甲组的产物不同3. 某遗传病由X染色体上的显性基因A控制,但男性不发病。
现有一个女性患者与一个不携带该致病基因的男性结婚,其后代患病率为50%。
下列叙述正确的是( )A. 该病在男性和女性中的患病概率相同B. 该女性患者的致病基因均来自其父亲C. 在男性和女性中,该致病基因的基因频率相同D. 该女性患者的女儿不一定患病,儿子一定患病4. 新冠病毒依赖核糖体“移码”的特殊机制来提高病毒蛋白表达水平。
核糖体“移码”是指病毒RNA翻译过程中核糖体会向前或向后滑动一两个核苷酸,导致病毒可以利用一条RNA为模板翻译产生两种蛋白质。
下列有关该现象的叙述错误的是( )A. 核糖体“移码”可以扩展病毒所携带遗传信息的利用率B. 核糖体“移码”前后合成的两条肽链的氨基酸序列不同C. 核糖体“移码”可能会导致RNA上提前出现终止密码子D. 核糖体“移码”会导致RNA上起始密码子位置发生改变5. 高山树线是指天然森林分布的海拔上限,气候变暖使高山树线向更高海拔迁移。
树线之上低矮、稀疏的灌丛或草丛有利于树线上升,而较为高大、茂密的灌丛由于其较强的竞争作用抑制树线的上升。
2020年河北省中考数学模拟试卷(七)(附解析)
2020年河北省中考数学模拟试卷(七)一.选择题(本题共42分,第1-10题,每小题3分,第11-16题,每小题3分) 1.下列所给的汽车标志图案中,既是轴对称图形,又是中心对称图形的是( )A .B .C .D .2.近期,新型冠状病毒感染肺炎的疫情在全国蔓延,全国人民团结一致,全力抗击新型冠状病毒感染肺炎.多国政府官员及机构高度赞赏并支持中国政府抗击疫情的有力措施,表示对中国早日战胜疫情充满信心,社会各界人士积极捐款.截止2月5日中午12点,武汉市慈善总会接收捐赠款约3230000000元.14亿中国人民众志成城、行动起来、战斗起来,一定能打赢这场疫情防控阻击战,将3230000000用科学记数法表示应为( ) A .323×107B .32.3×108C .3.23×109D .3.23×10103.如图,点A 、O 、B 在一条直线上,∠1是锐角,则∠1的余角是( )A .12∠2﹣∠1B .12∠2−32∠1C .12(∠2﹣∠1)D .13(∠1+∠2)4.“十一”期间,某电器按成本价提高30%后标价,再打8折(标价的80%)销售,售价为2080元,设该电器的成本价为x 元,根据题意,下面所列方程正确的是( ) A .x •(1+30%)×80%=2080 B .x •30%•80%=2080C .2080×30%×80%=xD .x •30%=2080×80%5.关于x 的不等式组{x −m <03x −1>2(x −1)有解,那么m 的取值范围为( )A .m ≤﹣1B .m <﹣1C .m ≥﹣1D .m >﹣16.把方程x 2+8x ﹣3=0化成(x +m )2=n 的形式,则m ,n 的值分别是( ) A .4,13B .﹣4,19C .﹣4,13D .4,197.如图,小明在以∠A 为顶角的等腰三角形ABC 中用圆规和直尺作图,作出过点A 的射线交BC 于点D ,然后又作出一条直线与AB 交于点E ,连接DE ,若△ABC 的面积为4,则△BED 的面积为( )A .1B .2C .3D .48.已知点A (2,3)在反比例函数y ═k x(k ≠0)的图象上,当x >﹣2时,则y 的取值范围是( ) A .y >﹣3B .y <﹣3或y >0C .y <﹣3D .y >﹣3或y >09.如图,AB 为⊙O 直径,弦CD ⊥AB 于E ,则下面结论中错误的是( )A .CE =DEB .BĈ=BD ̂ C .∠BAC =∠BAD D .OE =BE10.一个不透明的布袋里装有3个红球,2个黑球,若干个白球;从布袋中随机摸出一个球,摸出的球是红球的概率是37,袋中白球共有( )A .1个B .2个C .3个D .4个11.若关于x 的方程2x+m x+2=−1的解是负数,则m 的取值范围是( )A .m <﹣2B .m >﹣2C .m <﹣2且m ≠4D .m >﹣2且m ≠412.如图,正六边形的中心为原点O ,点A 的坐标为(0,4),顶点E (﹣1,√3),顶点B (1,√3),设直线AE 与y 轴的夹角∠EAO 为α,现将这个六边形绕中心O 旋转,则当α取最大角时,它的正切值为( )A .12B .1C .√33D .4+√31313.如图,将▱ABCD 沿对角线AC 折叠,使点B 落在B ′处,若∠1=∠2=44°,则∠B 为( )A .66°B .104°C .114°D .124°14.如果ab >0,bc <0,则一次函数y =−ab x +cb 的图象的大致形状是( )A .B .C .D .15.二次函数y =ax 2+bx +c (a ≠0)的部分图象如图所示,图象过点(﹣1,0),对称轴为直线x =1,下列结论:①abc <0②b <c ③3a +c =0④当y >0时,﹣1<x <3 其中正确的结论有( )A .1个B .2个C .3个D .4个16.已知抛物线y =−316(x ﹣1)(x ﹣9)与x 轴交于A ,B 两点,对称轴与抛物线交于点C ,与x 轴交于点D ,⊙C 的半径为2,G 为⊙C 上一动点,P 为AG 的中点,则DP 的最大值为( )A .72B .2√3C .√412D .5二.填空题(17小题3分;18小题4分;19小题2空,每空2分,共11分) 17.方程x 2=﹣4x 的解是 .18.买一个篮球需要m元,买一个排球需要n元,则买3个篮球和5个排球共需要元.19.定义新运算:a&b=a(1﹣b),其中等号右边是常规的乘法和减法运算,例如:(﹣1)&1=(﹣1)×(1﹣1)=0.(1)计算:(1+2)&2=.(2)若a&a+b&b=2ab.则a与b的关系:.三.解答题(本大题有7个小题,共67分.解答应写出文字说明、证明过程或演算步骤)20.(8分)数学课上,李老师和同学们做一个游戏:他在三张硬纸片上分别写出一个代数式,背面分别标上序号①、②、③,摆成如图所示的一个等式,然后翻开纸片②是4x2+5x+6,翻开纸片③是3x2﹣x﹣2.解答下列问题(1)求纸片①上的代数式;(2)若x是方程2x=﹣x﹣9的解,求纸片①上代数式的值.21.(9分)观察下列等式:12×231=132×21,13×341=143×3123×352=253×32,34×473=374×43,62×286=682×26,……以上每个等式中两边数字是分别对称的,且每个等式中组成两位数与三位数的数字之间具有相同规律,我们称这类等式为“数字对称等式”(1)根据上述各式反映的规律填空,使式子称为“数字对称等式”:①52×=×25②×396=693×;(2)设这类等式左边两位数的十位数字为a,个位数字为b,且2≤a+b≤9,写出表示“数字对称等式”一般规律的式子(含a,b),并证明;(3)若(2)中a,b表示一个两位数,例如a=11,b=22,则1122×223311=113322×2211,请写出表示这类“数字对称等式”一般规律的式子(含a,b),并写出a+b的取值范围.22.(9分)某学校是乒乓球体育传统项目校,为进一步推动该项目的发展.学校准备到体育用品店购买甲、乙两种型号乒乓球若干个,已知3个甲种乒乓球和5个乙种乒乓球共需50元,2个甲种乒乓球和3个乙种乒乓球共需31元.(1)求1个甲种乒乓球和1个乙种乒乓球的售价各是多少元?(2)学校准备购买这两种型号的乒乓球共200个,要求甲种乒乓球的数量不超过乙种乒乓球的数量的3倍,请设计出最省钱的购买方案,并说明理由.23.(9分)如图,△ABC内接于⊙O,AB是直径,过点A作直线MN,且∠MAC=∠ABC.(1)求证:MN是⊙O的切线.(2)设D是弧AC的中点,连结BD交AC于点G,过点D作DE⊥AB于点E,交AC 于点F.①求证:FD=FG.②若BC=3,AB=5,试求AE的长.24.(10分)如图,在平面直角坐标系中,直线AB与x轴交于点B,与y轴交于点A,直线AB与反比例函数y=mx(m>0)在第一象限的图象交于点C、点D,其中点C的坐标为(1,8),点D的坐标为(4,n).(1)分别求m、n的值;(2)连接OD,求△ADO的面积.25.(10分)如图,△ABC中,AB=AC,∠BAC<60°,将线段AB绕点A逆时针旋转60°得到点D,点E与点D关于直线BC对称,连接CD,CE,DE.(1)依题意补全图形;(2)判断△CDE的形状,并证明;(3)请问在直线CE上是否存在点P,使得P A﹣PB=CD成立?若存在,请用文字描述出点P的准确位置,并画图证明;若不存在,请说明理由.26.(12分)如图,抛物线y=﹣x2+bx+c与x轴相交于A、B两点,与y轴相交于点C,且点B与点C的坐标分别为B(3,0).C(0,3),点M是抛物线的顶点.(1)求二次函数的关系式;(2)点P为线段MB上一个动点,过点P作PD⊥x轴于点D.若OD=m,△PCD的面积为S,①求S与m的函数关系式,写出自变量m的取值范围.②当S取得最值时,求点P的坐标;(3)在MB上是否存在点P,使△PCD为直角三角形?如果存在,请直接写出点P的坐标;如果不存在,请说明理由.参考答案与试题解析一.选择题(共16小题)1.下列所给的汽车标志图案中,既是轴对称图形,又是中心对称图形的是()A.B.C.D.解:A、是轴对称图形,不是中心对称图形,故本选项错误;B、既是轴对称图形,又是中心对称图形,故本选项正确;C、是轴对称图形,不是中心对称图形,故本选项错误;D、是轴对称图形,不是中心对称图形,故本选项错误.故选:B.2.近期,新型冠状病毒感染肺炎的疫情在全国蔓延,全国人民团结一致,全力抗击新型冠状病毒感染肺炎.多国政府官员及机构高度赞赏并支持中国政府抗击疫情的有力措施,表示对中国早日战胜疫情充满信心,社会各界人士积极捐款.截止2月5日中午12点,武汉市慈善总会接收捐赠款约3230000000元.14亿中国人民众志成城、行动起来、战斗起来,一定能打赢这场疫情防控阻击战,将3230000000用科学记数法表示应为()A.323×107B.32.3×108C.3.23×109D.3.23×1010解:3 230 000 000=3.23×109,故选:C.3.如图,点A、O、B在一条直线上,∠1是锐角,则∠1的余角是()A .12∠2﹣∠1B .12∠2−32∠1C .12(∠2﹣∠1)D .13(∠1+∠2)解:由图知:∠1+∠2=180°;∴12(∠1+∠2)=90°;∴90°﹣∠1=12(∠1+∠2)﹣∠1=12(∠2﹣∠1). 故选:C .4.“十一”期间,某电器按成本价提高30%后标价,再打8折(标价的80%)销售,售价为2080元,设该电器的成本价为x 元,根据题意,下面所列方程正确的是( ) A .x •(1+30%)×80%=2080 B .x •30%•80%=2080C .2080×30%×80%=xD .x •30%=2080×80%解:设该电器的成本价为x 元, 由题意得,x (1+30%)×80%=2080. 故选:A .5.关于x 的不等式组{x −m <03x −1>2(x −1)有解,那么m 的取值范围为( )A .m ≤﹣1B .m <﹣1C .m ≥﹣1D .m >﹣1解:{x −m <03x −1>2(x −1),解不等式x ﹣m <0,得:x <m ,解不等式3x ﹣1>2(x ﹣1),得:x >﹣1,∵不等式组有解,∴m>﹣1.故选:D.6.把方程x2+8x﹣3=0化成(x+m)2=n的形式,则m,n的值分别是()A.4,13B.﹣4,19C.﹣4,13D.4,19解:∵x2+8x﹣3=0,∴x2+8x=3,∴x2+8x+16=3+16,即(x+4)2=19,∴m=4,n=19,故选:D.7.如图,小明在以∠A为顶角的等腰三角形ABC中用圆规和直尺作图,作出过点A的射线交BC于点D,然后又作出一条直线与AB交于点E,连接DE,若△ABC的面积为4,则△BED的面积为()A.1B.2C.3D.4解:∵△ABC是等腰三角形,根据作图可知:AD是顶角A的平分线,∴点D是BC的中点,∴S △ABD =12S △ABC =2∵点E 是AB 的中点,∴S △BED =12S ABD =1.故选:A .8.已知点A (2,3)在反比例函数y ═k x (k ≠0)的图象上,当x >﹣2时,则y 的取值范围是( )A .y >﹣3B .y <﹣3或y >0C .y <﹣3D .y >﹣3或y >0 解:根据题意得k =2×3=6,∴y =6x ,∴图象在一三象限,在每个象限内y 随x 增大而减小,当x =﹣2时,y =6−2=−3,∴当x >﹣2时,y <﹣3或y >0.故选:B .9.如图,AB 为⊙O 直径,弦CD ⊥AB 于E ,则下面结论中错误的是( )A .CE =DEB .BC ̂=BD ̂ C .∠BAC =∠BAD D .OE =BE解:根据垂径定理和等弧对等弦,得A 、B 、C 正确,只有D 错误.故选:D .10.一个不透明的布袋里装有3个红球,2个黑球,若干个白球;从布袋中随机摸出一个球,摸出的球是红球的概率是37,袋中白球共有( ) A .1个B .2个C .3个D .4个 解:设白球有x 个,根据题意,得:33+2+x =37, 解得:x =2, 即袋中白球有2个,故选:B .11.若关于x 的方程2x+m x+2=−1的解是负数,则m 的取值范围是( ) A .m <﹣2 B .m >﹣2 C .m <﹣2且m ≠4 D .m >﹣2且m ≠4解:由方程2x+m x+2=−1,解得:x =−2−m 3 ∵解是负数,且x ≠﹣2∴−2−m 3<0且−2−m 3≠−2∴m >﹣2且≠4故选:D .12.如图,正六边形的中心为原点O ,点A 的坐标为(0,4),顶点E (﹣1,√3),顶点B (1,√3),设直线AE 与y 轴的夹角∠EAO 为α,现将这个六边形绕中心O 旋转,则当α取最大角时,它的正切值为( )A .12B .1C .√33D .4+√313解:如图所示,连接AM ,∵正六边形是中心对称图形,绕中心O 旋转时,点E 与B 重合时,α的角度不变; 点E 与F 、M 重合时,α的角度不变;点E 与G 、H 重合时,α的角度不变,此时角度最小;∵AN =4−√3,EN =1,OM =OE =√12+(√3)2=2,∴tan ∠EAN =EN AN =14−√3=4+√313,tan ∠MAO =OM OA =24=12; 当OE ⊥AE 时,α角是最大的,∵OE =2,OA =4,∴α=30°, ∴tan α=√33∴当α取最大角时,它的正切值为√33; 故选:C .13.如图,将▱ABCD 沿对角线AC 折叠,使点B 落在B ′处,若∠1=∠2=44°,则∠B 为( )A .66°B .104°C .114°D .124°解:∵四边形ABCD 是平行四边形,∴AB ∥CD ,∴∠ACD =∠BAC ,由折叠的性质得:∠BAC =∠B ′AC ,∴∠BAC =∠ACD =∠B ′AC =12∠1=22°,∴∠B =180°﹣∠2﹣∠BAC =180°﹣44°﹣22°=114°;故选:C .14.如果ab >0,bc <0,则一次函数y =−a b x +c b 的图象的大致形状是( )A .B .C .D .解:根据题意,ab >0,bc <0,则a b >0,c b<0, ∴在一次函数y =−a b x +c b 中,有−a b <0,c b<0, 故其图象过二三四象限,分析可得D 符合,故选:D .15.二次函数y =ax 2+bx +c (a ≠0)的部分图象如图所示,图象过点(﹣1,0),对称轴为直线x =1,下列结论:①abc <0②b <c ③3a +c =0④当y >0时,﹣1<x <3其中正确的结论有( )A.1个B.2个C.3个D.4个解:①对称轴位于x轴的右侧,则a,b异号,即ab<0.抛物线与y轴交于正半轴,则c>0.∴abc<0.故①正确;②∵抛物线开口向下,∴a<0.∵抛物线的对称轴为直线x=−b2a=1,∴b=﹣2a.∵x=﹣1时,y=0,∴a﹣b+c=0,而b=﹣2a,∴c=﹣3a,∴b﹣c=﹣2a+3a=a<0,即b<c,故②正确;③∵x=﹣1时,y=0,∴a﹣b+c=0,而b=﹣2a,∴c =﹣3a ,∴3a +c =0.故③正确;④由抛物线的对称性质得到:抛物线与x 轴的另一交点坐标是(3,0).∴当y >0时,﹣1<x <3故④正确.综上所述,正确的结论有4个.故选:D .16.已知抛物线y =−316(x ﹣1)(x ﹣9)与x 轴交于A ,B 两点,对称轴与抛物线交于点C ,与x 轴交于点D ,⊙C 的半径为2,G 为⊙C 上一动点,P 为AG 的中点,则DP 的最大值为( )A .72B .2√3C .√412D .5解:如图,连接BG .P 为AG 中点,D 为AB 中点,所以PD 是△ABG 的中位线,则DP =12BG ,当BG 最大时,则DP 最大.由圆的性质可知,当G 、C 、B 三点共线时,BG 最大.∵C (5,3),B (9,0),∴BC =√32+42=5,∴BG 的最大值为2+5=7,∴DP 的最大值为72.故选:A .二.填空题(共3小题)17.方程x 2=﹣4x 的解是 x 1=0,x 2=﹣4 .解:x 2=﹣4x ,x 2+4x =0,x (x +4)=0,x 1=0,x 2=﹣4故答案为x 1=0,x 2=﹣4.18.买一个篮球需要m 元,买一个排球需要n 元,则买3个篮球和5个排球共需要 (3m +5n ) 元.解:买3个篮球和5个排球共需要(3m+5n)元.故答案为:3m+5n19.定义新运算:a&b=a(1﹣b),其中等号右边是常规的乘法和减法运算,例如:(﹣1)&1=(﹣1)×(1﹣1)=0.(1)计算:(1+2)&2=﹣3.(2)若a&a+b&b=2ab.则a与b的关系:a=﹣b或a=1﹣b.解:(1)∵a&b=a(1﹣b),∴(1+2)&2=3&2=3×(1﹣2)=3×(﹣1)=﹣3,故答案为:﹣3;(2)∵a&a+b&b=2ab,∴a(1﹣a)+b(1﹣b)=2ab,∴a﹣a2+b﹣b2=2ab,∴a+b=a2+2ab+b2∴a+b=(a+b)2,∴(a+b)2﹣(a+b)=0,∴(a+b)(a+b﹣1)=0,∴a+b=0或a+b﹣1=0,∴a=﹣b或a=1﹣b,故答案为:a=﹣b或a=1﹣b.三.解答题(共7小题)20.数学课上,李老师和同学们做一个游戏:他在三张硬纸片上分别写出一个代数式,背面分别标上序号①、②、③,摆成如图所示的一个等式,然后翻开纸片②是4x2+5x+6,翻开纸片③是3x2﹣x﹣2.解答下列问题(1)求纸片①上的代数式;(2)若x是方程2x=﹣x﹣9的解,求纸片①上代数式的值.解:(1)纸片①上的代数式为:(4x2+5x+6)+(3x2﹣x﹣2)=4x2+5x+6+3x2﹣x﹣2=7x2+4x+4(2)解方程:2x=﹣x﹣9,解得x=﹣3代入纸片①上的代数式得7x2+4x+4=7×(﹣3)2+4×(﹣3)+4=55即纸片①上代数式的值为5521.观察下列等式:12×231=132×21,13×341=143×3123×352=253×32,34×473=374×43,62×286=682×26,……以上每个等式中两边数字是分别对称的,且每个等式中组成两位数与三位数的数字之间具有相同规律,我们称这类等式为“数字对称等式”(1)根据上述各式反映的规律填空,使式子称为“数字对称等式”:①52×275=572×25②63×396=693×36;(2)设这类等式左边两位数的十位数字为a,个位数字为b,且2≤a+b≤9,写出表示“数字对称等式”一般规律的式子(含a,b),并证明;(3)若(2)中a,b表示一个两位数,例如a=11,b=22,则1122×223311=113322×2211,请写出表示这类“数字对称等式”一般规律的式子(含a,b),并写出a+b的取值范围.解:(1)观察可知:若两位数的个位数字、十位数字、个位数与十位数之和分别是三位数的百位上的数字、个位上的数字、十位上的数字,这样的两位数与三位数的积,则等于这个三位数与两位数各自交换个位数字与十位数字所得的三位数与两位数的积,∴①52×275=572×25②63×396=693×36.故答案为275、572,63、36;(2)(10a +b )•[100b +10(a +b )+a ]=[100a +10(a +b )+b ]•(10b +a )验证:等式左边=(10a +b )•(110b +11a )=11(10a +b )(10b +a )等式右边=(110a +11b )(10b +a )=11(10a +b )(10b +a )左边=右边.答:表示“数字对称等式”一般规律的式子为)(10a +b )•[100b +10(a +b )+a ]=[100a +10(a +b )+b ]•(10b +a );(3)规律:若a =11m ,b =11n ,(m 、n 均为1至8的自然数),且22≤a +b ≤99,则 (100a +b )[10000b +100(a +b )+a ]=[10000a +100(a +b )+b ](100b +a ).a +b 的取值范围为:22≤a +b ≤99.22.某学校是乒乓球体育传统项目校,为进一步推动该项目的发展.学校准备到体育用品店购买甲、乙两种型号乒乓球若干个,已知3个甲种乒乓球和5个乙种乒乓球共需50元,2个甲种乒乓球和3个乙种乒乓球共需31元.(1)求1个甲种乒乓球和1个乙种乒乓球的售价各是多少元?(2)学校准备购买这两种型号的乒乓球共200个,要求甲种乒乓球的数量不超过乙种乒乓球的数量的3倍,请设计出最省钱的购买方案,并说明理由.解:(1)设1个甲种乒乓球的售价是x 元,1个乙种乒乓球的售价是y 元,依题意,得:{3x +5y =502x +3y =31,解得:{x =5y =7. 答:1个甲种乒乓球的售价是5元,1个乙种乒乓球的售价是7元.(2)设购买甲种乒乓球a 个,费用为w 元,则购买乙种乒乓球(200﹣a )个, 依题意,得:w =5a +7(200﹣a )=﹣2a +1400.∵a ≤3(200﹣a ),∴a ≤150.∵﹣2<0,∴w 值随a 值的增大而减小,∴当a =150时,w 取得最小值,此时w =1100,200﹣a =50.答:当购买甲种乒乓球150个,乙种乒乓球50个时最省钱.23.如图,△ABC 内接于⊙O ,AB 是直径,过点A 作直线MN ,且∠MAC =∠ABC .(1)求证:MN 是⊙O 的切线.(2)设D 是弧AC 的中点,连结BD 交AC 于点G ,过点D 作DE ⊥AB 于点E ,交AC 于点F .①求证:FD =FG .②若BC =3,AB =5,试求AE 的长.(1)证明:∵AB 是直径,∴∠ACB=90°,∴∠CAB+∠ABC=90°;∵∠MAC=∠ABC,∴∠MAC+∠CAB=90°,即MA⊥AB,∴MN是⊙O的切线;(2)①证明:∵D是弧AC的中点,∴∠DBC=∠ABD,∵AB是直径,∴∠CBG+∠CGB=90°,∵DE⊥AB,∴∠FDG+∠ABD=90°,∵∠DBC=∠ABD,∴∠FDG=∠CGB=∠FGD,∴FD=FG;②解:连接AD、CD,作DH⊥BC,交BC的延长线于H点.∵∠DBC=∠ABD,DH⊥BC,DE⊥AB,∴DE=DH,在Rt△BDE与Rt△BDH中,{DH=DEBD=BD,∴Rt△BDE≌Rt△BDH(HL),∴BE=BH,∵D是弧AC的中点,∴AD=DC,在Rt△ADE与Rt△CDH中,{DE=DHAD=CD,∴Rt△ADE≌Rt△CDH(HL).∴AE=CH.∴BE=AB﹣AE=BC+CH=BH,即5﹣AE=3+AE,∴AE=1.24.如图,在平面直角坐标系中,直线AB与x轴交于点B,与y轴交于点A,直线AB与反比例函数y=mx(m>0)在第一象限的图象交于点C、点D,其中点C的坐标为(1,8),点D 的坐标为(4,n ).(1)分别求m 、n 的值;(2)连接OD ,求△ADO 的面积.解:(1)∵反比例函数y =m x (m >0)在第一象限的图象交于点C (1,8), ∴8=m 1,∴m =8,∴函数解析式为y =8x ,将D (4,n )代入y =8x 得,n =84=2. (2)设直线AB 的解析式为y =kx +b ,由题意得 {k +b =84k +b =2, 解得 {k =−2b =10, ∴直线AB 的函数解析式为y =﹣2x +10,令x =0,则y =10,∴A (0,10),∴△ADO 的面积=12×10×4=20=20.25.如图,△ABC 中,AB =AC ,∠BAC <60°,将线段AB 绕点A 逆时针旋转60°得到点D,点E与点D关于直线BC对称,连接CD,CE,DE.(1)依题意补全图形;(2)判断△CDE的形状,并证明;(3)请问在直线CE上是否存在点P,使得P A﹣PB=CD成立?若存在,请用文字描述出点P的准确位置,并画图证明;若不存在,请说明理由.解:(1)补全图形如图1.(2)△CDE为等边三角形,证明如下:延长BC与DE交于F,∵AB=AC,∴∠ABC=∠ACB,①∵线段AB绕点A逆时针旋转60°得到点D,∴AD=AB=AC,∠BAD=60°,∴∠ACD=∠ADC,②∵四边形ABCD中,∠BAD+∠ABC+∠BCD+∠CDA=360°.∴∠ABC+∠ACB+∠ACD+∠ADC=300°,③∴由①②③,得∠ACB+∠ACD=150°,即∠BCD=150°,∴∠DCF=180°﹣∠BCD=30°,∵点E与点D关于直线BC对称,∴∠ECF=∠DCF=30°,DC=CE,∴∠DCE=60°.∴△DCE是等边三角形;(3)存在,作AG⊥BC于G,直线EC与AG的交点即为点P,证明:延长AG与DC交于点Q,连接QB,BD,由(2)可知,∠PCD=180°﹣∠DCE=120°,∠PCQ=∠DCE=60°,∠PCG=∠FCE =30°,∴∠CPG=90°﹣∠PCG=60°,∴∠PQC=∠CPQ=∠PCQ=60°,∴△PCQ为等边三角形,∴PC=CQ,∠APC=120°﹣∠PCD,①∵AG⊥BC,AC=BC,∴AG垂直平分BC,∴PB=PC=QB=QC,∴四边形PBQC是菱形,∴PB=QC,∠PBQ=∠PCQ=60°,②∵QB=QC,∴∠QBC=∠QCB,∴∠ABQ=∠ACQ,∵AB=AD,∠BAD=60°,∴△ABD为等边三角形,∴∠ABD=60°=∠PCQ,∴∠ABQ﹣∠ABD=∠ACQ﹣∠PCQ,∴∠DBQ=∠ACP,③∴由①②③得△ACP≌△DBQ(AAS),∴AP=DQ.∵CQ=PB,∴AP=DQ=DC+CQ=DC+PB.即P A﹣PB=CD成立.26.如图,抛物线y=﹣x2+bx+c与x轴相交于A、B两点,与y轴相交于点C,且点B与点C的坐标分别为B(3,0).C(0,3),点M是抛物线的顶点.(1)求二次函数的关系式;(2)点P为线段MB上一个动点,过点P作PD⊥x轴于点D.若OD=m,△PCD的面积为S,①求S与m的函数关系式,写出自变量m的取值范围.②当S取得最值时,求点P的坐标;(3)在MB上是否存在点P,使△PCD为直角三角形?如果存在,请直接写出点P的坐标;如果不存在,请说明理由.解:(1)将点B (3,0),C (0,3)代入y =﹣x 2+bx +c ,得 {0=−9+3b +3c =3, 解得,{b =2c =3, ∴二次函数的解析式为y =﹣x 2+2x +3;(2)①∵y =﹣x 2+2x +3=﹣(x ﹣1)2+4, ∴顶点M (1,4),设直线BM 的解析式为y =kx +b ,将点B (3,0),M (1,4)代入,得 {3k +b =0k +b =4, 解得 {k =−2b =6, ∴直线BM 的解析式为y =﹣2x +6,∵PD ⊥x 轴且OD =m ,∴P (m ,﹣2m +6),∴S =S △PCD =12PD •OD =12m (﹣2m +6)=﹣m 2+3m , 即S =﹣m 2+3m ,∵点P 在线段BM 上,且B (3,0),M (1,4), ∴1≤m ≤3;②∵S =﹣m 2+3m =﹣(m −32)2+94,∵﹣1>0,∴当m =32时,S 取最大值94, ∴P (32,3);(3)存在,理由如下:如图2﹣1,当∠CPD =90°时,∵∠COD =∠ODP =∠CPD =90°,∴四边形CODP 为矩形,∴PD =CO =3,将y =3代入直线y =﹣2x +6,得,x =32,∴P (32,3);如图2﹣2,当∠PCD =90°时,∵OC =3,OD =m ,∴CD 2=OC 2+OD 2=9+m 2,∵PD∥OC,∴∠PDC=∠OCD,∴cos∠PDC=cos∠OCD,∴DCPD =OCDC,∴DC2=PD•OC,∴9+m2=3(﹣2m+6),解得,m1=﹣3﹣3√2(舍去),m2=﹣3+3√2,∴P(﹣3+3√2,12﹣6√2),当∠PDC=90°时,∵PD⊥x轴,∴不存在,综上所述,点P的坐标为(32,3)或(﹣3+3√2,12﹣6√2).。
电子商务师(中级)模拟试卷(七)-电子商务员试卷与试题
42. IP地址的标识方法叫做()表示法。T[1分]-----正确答案(C) A 点分二进制 B 点分八进制 C 点分十进制 D 点分十六进缺点
43. 在网络广告投放之初要建立必要的(),以保证在投放效果出现波动时替换与弥补。T[1分]-----正确答案(A) A 备份方案 B 网络日志 C 投放方案 D 网络平台
18. 第三方电子商务模式的实质就是()。T[1分]-----正确答案(A) A 依托第三方电子商务平台开展电子商务 B 作为中介开展电子商务 C 免费为商家提供服务 D 软硬件服务
19. 建立邮件列表基本资源中最好的资源是()。T[1分]-----正确答案(D) A 网站访问者 B 广告关注者 C 企业竞争者 D 现有客户
17. 《中华人民共和国电子签名法》确定了电子签名的法律效力,表现为()。T[1分]-----正确答案(D) A 规范电子签名的行为,明确认证机构的法律地位及认证程序 B 明确认证机构的法律地位及认证程序,规定电子签名的安全保障措施 C 采用规范化的程序和科学化方法,鉴定签名人的身份以及一项数据电文内容信息的认可 D 立法确认了电子签名的合法性、有效性,明确满足什么条件的电子签名是合法、有效的
14. 企业网络采购的主要目标是()。T[1分]-----正确答案(A) A 防止腐败,使竞争更加充分,有效保证采购质量 B 对成本低、数量大或营销关键业务的产品和服务订单实现处理和完成过程自动化 C 对各种电子信息进行分析、整理和汇总,促进企业采购的信息化建设 D 使采购程序的操作和监督更规范,大大减少采购过程中认为干扰因素
模拟试卷-07(answer)
2014年天津市高等院校“高职升本科”招生统一考试计算机应用基础模拟试卷(七)本试卷分为第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分,共150分,考试时间为90分钟第Ⅰ卷一、单项选择题:本大题共60小题,每小题1.5分,共计90分。
每小题给出的四个选项中,只有一个是符合题目要求的。
1.在计算机飞速发展中,微型计算机出现在 CA. 二十世纪50年代B. 二十世纪60年代C. 二十世纪70年代D. 二十世纪80年代2.计算机辅助设计的简称是 AA. CADB. CAMC. CAID. CAL3.运用“助记符”来表示机器中各种不同指令的符号语言是 CA.C语言B.机器语言C.汇编语言D.BASIC语言4.将源程序边翻译边执行的过程称为 CA. 汇编B. 执行C. 解释D. 编译5.根据冯·诺依曼体系结构,计算机硬件系统包含的五大部分是 CA. 键盘、鼠标、显示器、主机、电源设备B. 运算器、控制器、存储器、输出设备、电源设备C. 运算器、控制器、存储器、输入设备、输出设备D. 中央处理器、只读存储器、随机存储器、输入设备、输出设备6.手写板属于冯·诺依曼结构计算机中的 DA.运算器B.控制器C.存储器D.输入设备7.补码10011010的真值是 CA. -1100101B. 1100101C. -1100110D. 11001108.英文小写字母d的ASCII码为100,英文大写字母D的ASCII码为 DA.50 B.66C.52 D.689.国标GB2312-80中,“国”字的十六进制编码为397A,其对应的汉字机内码为 AA. B9FA B.B3H7C. A8B2 D.C9HA10.微机的字长取决于 BA.控制总线的宽度B.数据总线的宽度C.地址总线的宽度D.通信总线的宽度11.某个CPU有20根地址线,则寻址范围可达 BA. 512KBB. 1024KBC. 4096KBD. 2048KB12.在下列设备中,有可能是计算机病毒传染渠道的是 DA. 键盘B. 鼠标C. 扫描仪D. 移动硬盘13.在Windows XP的汉字输入法中,不属于...系统默认支持的是CA.区位输入法B.郑码输入法C.表形码输入法D.五笔字型输入法14.下列关于Windows XP任务管理器功能的说法中,错误..的是 AA.不能启动一个新的应用程序B.可以动态查看内存的使用情况C.可以关闭正在执行的应用程序D.可以进行用户切换15.下列Windows XP的鼠标指针中,表示“超链接”的是 BA.B.C. D.16.下列关于Windows XP文件名叙述错误..的是 AA. 文件名允许出现“|”B. 文件名中允许包括多个空格C. 文件名中允许包括多个小数点D. 文件名允许多达255个字符17.在Windows XP中,要将当前窗口作为一幅图片复制到剪贴板中,可以按 DA. Ctr+C 键B. Ctrl+X 键C. PrintScreen 键D. Alt+PrintScreen 键18.在Windows XP中,回收站用于存放 AA.从硬盘上删除的文件或文件夹B.从U盘上删除的文件或文件夹C.从硬盘上或U盘上删除的文件或文件夹D.从所有外部存储器上删除的文件或文件夹19.在Windows XP中,将一个非活动窗口变成活动窗口的过程称为 AA.切换B.打开C.运行D.移动20.在Windows XP窗口菜单中,某菜单项后有“ ”标记,则说明该菜单项 DA. 可单选B. 可复选C.有级联菜单 D. 可打开对话框21.Word 2003所处理的文档,其默认扩展名是 AA. .docB. .txtC. .bmpD. .rtf22.在Word 2003编辑状态下,从全屏显示方式返回到原视图方式的快捷键是 BA. HomeB. EscC. EndD. Enter23.在Word 2003编辑状态下,要在文档中添加符号“★”,使用的命令属于 CA. “文件”菜单B. “编辑”菜单C. “插入”菜单D. “格式”菜单24.在Word 2003编辑状态下,下列叙述错误..的是 DA. 可以设置全文相同的页眉和页脚B. 可以为文档的每一节设置不同的页眉和页脚C. 可以为文档的第一页设置不同的页眉和页脚D. 可以为文档的每一个段落设置不同的页眉和页脚25.在Word 2003编辑状态下,设置按奇偶页面打印文档的菜单项是 CA. 格式B. 视图C. 文件D. 编辑26.在编辑Word 2003文档时,新输入的字符总是覆盖文档中插入点处已存在的字符,可能的原因是 CA. 文档中有字符已被选择B. 当前处于插入编辑方式C. 当前处于改写编辑方式D. 文档中有相同字符27.在Word 2003中,可在标尺上直接设置页边距,下列叙述不正确...的是 DA. 垂直标尺用于设置上下页边距B. 标尺上的灰色区域表示页边距C. 水平标尺用于设置左右页边距D. 标尺上的白色区域表示页边距28.在Word 2003编辑状态下,将文档中所有的“E-mail”替换为“电子邮件”,应使用的菜单是 BA. 视图B. 编辑C. 插入D. 工具29.在Word 2003编辑状态下,将插入点快速移动到文档首部,使用的快捷键是 BA. HomeB. Ctrl+HomeC. Shift+HomeD. Alt+Home30.在Word 2003的表格操作中,若想将表格中连续三列的列宽调整为1厘米,应该先选中这3列,然后单击菜单项 BA.“表格”→“平均分布各列”B.“表格”→“表格属性”C.“表格”→“表格自动套用格式”D.“表格”→“转换”31.在Word 2003编辑状态下,选中表格中某单元格后,执行“表格”菜单“拆分表格”命令,那么 AA. 表格被拆分成上下两个表格B. 选中单元格被拆分成上下两个单元格C. 表格被拆分成左右两个表格D. 选中单元格被拆分成左右两个单元格32.在Word 2003编辑状态下,每当输入“BJ2008”并按空格键后,系统都自动将其替换成“北京2008奥运会”,这是使用了 CA. 查找与替换功能B. 自动替换功能C. 自动更正功能D. 自动查找功能33.在Word 2003中,要使文字能够环绕图片,应将图片 BA. 插入到图形框中B. 直接插入到文档中C. 插入到文本框中D. 插入到表格中34.在Word 2003编辑状态下,可通过“自选图形”来创建不同的图形。
2022年贵州省高考地理模拟试卷(七)+答案解析(附后)
2022年贵州省高考地理模拟试卷(七)如图为某国家的太阳辐射相对量和电力负荷相对量的年变化图。
据此完成各小题。
1. 该国可能是( )A. 巴西B. 新加坡C. 西班牙D. 波兰2. 影响该国电力负荷变化的主要原因是( )A. 工业生产规模变化B. 气候周期性变化C. 光伏发电周期变化D.夏季发电处于峰值3. 该国不将光伏发电列为新能源开发主要方向的原因最可能是( )A. 光伏发电成本高B. 电力市场需求小C. 太阳辐射能匮乏D. 电能储存难度高高岭土是一种非金属矿产,世界储量不小,但大多只适合建造陶瓷或填料。
巴西盛产优质造纸用高岭土(黏土矿物),原生高岭土主要源于风化的花岗岩,这些岩石的风化产物被搬运、沉积,形成次生高岭土矿床。
雅里河流域(如图)是主要的次生高岭土矿床区。
近年来,巴西高岭土出口量大增。
据此完成各小题。
4. 图中山地的基岩( )A. 结构致密坚硬B. 含有丰富化石C. 质地疏松多孔D. 具有层理构造5. 高岭土资源沿雅里河富集的动力主要来自( )A. 生物作用B. 海浪侵蚀、搬运C. 风力侵蚀、搬运D. 流水侵蚀、搬运6. 专家预测,巴西高岭土价格大有上升之势,其原因主要有( )①非可再生资源,形成缓慢②环境恶化,不便输出③矿区地域狭小,储量有限④替代品奇缺,需求大增A. ①②B. ①③C. ②④D. ③④从某种意义上讲,集装箱空箱是港口的重要财产,没有空箱就没有港口的重箱(装有货物的集装箱)。
我国的贸易结构特征决定了国际集装箱出口大于进口的基本格局,港口码头对空箱的调拨需求愈加迫切。
如表为1995~2002年天津港和青岛港集装箱吞吐量(单位:104TEU)发展对比表。
如图为天津和青岛位置示意图。
据此完成各小题。
港口项目1995年1997年2000年2002年重箱吞吐量5467128187空箱吞吐量16274354天津港吞吐量合计7094171241空箱率22.9%28.7%25.1%22.4%重箱吞吐量4666129234空箱吞吐量156********青岛港吞吐量合计61108212341空箱率24.6%35.9%39.2%31.4%7.港口项目1995年1997年2000年2002年重箱吞吐量5467128187空箱吞吐量16274354天津港吞吐量合计7094171241空箱率22.9%28.7%25.1%22.4%重箱吞吐量4666129234空箱吞吐量156********青岛港吞吐量合计61108212341空箱率24.6%35.9%39.2%31.4%与青岛港相比,天津港的主要劣势是( )A. 经济腹地B. 地形条件C. 避风条件D. 水深条件8. 与青岛港相比,1995~2002年天津港空箱率较低的主要原因是( )A. 距国际海运航线较远B. 依托城市发展较慢C. 交通运输建设滞后D. 区域资源开发不足湖泊数量变化与气温、降水密切相关,湖泊新生和消失、扩张和退缩往往同时出现。
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模拟试卷七
一、名词解释:15%(每题3分)
1、休莫机制
2、铸币平价
3、套利交易
4、欧洲债券
5、IMF
二、判断题:10%(每题1分)
1、某国国际收支平衡表中,储备资产项目为-15亿美圆,则表示该国的国际储备资产减少15亿美圆。
2、由于西方发达国家实行市场经济,因此它们对其货币汇率总是听任市场供求关系,官方不予干预。
3、一国货币对内贬值必然会导致其对外贬值。
4、在间接标价法下,外币数额越小,说明本币汇率越低。
5、固定汇率制是指现实汇率严格地受平价的制约,不可变动的汇率制度。
6、备用信贷(Stand-by Credit)是参加基金组织的会员国向基金组织申请的一种信贷形式。
7、通货区的一个重要特征是固定汇率制。
8、合资经营企业是股权式合营企业,各方的投资物都要折价计算投资比例;而合作经营企业是契约式合营企业,各方的投资物一般不折价计算投资比例。
9、在黄金非货币化以后,基金组织可以在某些情况下卖出黄金或者接受成员国的黄金支付。
10、资产组合模型的一个主要特征在于假定本币资产与外币资产是完全替代物。
三、选择题:15%(每题1分)
1、当一国经济出现膨胀和顺差时,为了内外经济的平衡,根据财政货币政策配合理论,应采取的措施是( ) A.膨胀性的财政政策和膨胀性的货币政策
B.紧缩性的财政政策和紧缩性的货币政策
C.膨胀性的财政政策和紧缩性的货币政策
D.紧缩性的财政政策和膨胀性的货币政策
2、国际收支平衡表记录的是()之间的交易。
A.一国与他国
B.任意两国政府
C.一国居民与非居民
D.一国公民与非公民
3、专利权使用费的外汇收支应记入国际收支平衡表的()。
A.投资收入项目
B.资本账户
C.金融账户
D.服务收支项目
4、国际清偿力的范畴较国际储备()。
A.为大
B.为小
C.等同
D.无法比较
5、促使中国减少储备持有额的因素有()。
A.国际收支调节因素
B.维持人民币汇率的稳定
C.通货膨胀
D.国际收支调整速度比较慢
6、标志着布雷顿森林体系崩溃的开始的事件是()。
A.互惠信贷协议
B.尼克松政府的新经济政策
C.黄金双价制
D.史密森氏协议
7. 货币市场是指资金的借贷期限为()的短期资金市场。
A.半年 B.一年以内
C.一年 D.两年以内
8、由多家银行联合提供的中长期贷款叫()。
A.单边贷款
B.双边贷款
C.辛迪加贷款
D.政府贷款
9、一般认为,一国对外债务当年还本付息总额不能超过该国当年出口收入总额的(),超过这一界限就可能造成部分债务难以清偿,因此国际上把这一比率称为“警戒线”。
A.30%
B.25%
C.50%
D.60%
10、与金币本位制度相比,金块本位和金汇兑本位对汇率的稳定程度已()
A.升高 B.降低 C.不变 D.无法判断
11、根据货币主义汇率理论,在其他条件不变的情况下,一国的货币供应量相对于其他国家增加会导致该国货币汇率()。
A.上升 B.下降 C.不变 D.无法判断
12、如果客户向银行购买外汇,应该使用银行所报出的()。
A.即期汇率 B.中间汇率
C.买入汇率
D.卖出汇率
13、在汇率理论中,具有强烈的政策性和可操作性的是:()
A.购买力平价说 B.利率平价说
C.弹性价格货币分析法
D.国际收支说
14、假设美国投资者投资英镑CDs,6个月收益5%,此期间英镑贬值9%,则投资英镑的有效收益率为()A.14.45% B.-1.45% C.14% D.-4%
15、英镑的年利率为27%,美元的年利率为9%,假如一家美国公司投资英镑1年,为符合利率平价,英镑应相对美元:()
A.升值18% B.贬值36%
C.贬值14%
D.升值14%
四、计算题:10%(每题5分)
1、某外汇交易商想借入800,000美元或等值日元, 进行在美元和日元之间的抵补套利交易,他面对如下汇率及利率(假设美元和日元的存、贷利率相同):
即期汇率:¥124.00/$
6个月远期汇率:¥123.80/$
6个月的美元利率:年率5%
6个月的日元利率:年率3%
解释该交易员进行抵补套利的步骤,并计算获利或损失金额。
2、某国某年的部分经济指标如下表所列: 单位: 1亿美元
GNP 5,000 贸易与劳务外汇收入 100
偿还外债本息 30 对外债务总额 1,003
外汇储备 400
根据上述数据,请回答:
⑴该国当年的债务清偿率,负债率以及债务率。
⑵你认为该国的外债情况是否合理,为什么?
五、简答题:30%(每题6分)
1、简述J曲线效应是如何产生的。
2、简述中国国际储备特点。
3、简述目前有关国际货币改革的方案的具体建议有哪些。
4、简述债务危机的解决方案。
5、简述金融全球化的原因是什么?
六、论述题:20%(每题10分)
1、论述金本位制度和布雷顿森里体系下,两种固定汇率制度的异同。
2、根据案例回答问题
2006年8月,全球最大的金融期货交易所--美国芝加哥商品交易所(以下简称CME)推出人民币对美元、欧元及日元的期货和期权交易,而此前的4月,CME已和中国外汇交易中心签署合作协定,中国外汇交易中心会员单位将可以通过中国外汇交易中心交易CME全球电子交易平台上国际货币市场的外汇和利率产品。
这对中国的企业来说有什么影响呢?
我们先来看两个例子:
例一:一个中国企业于2006年7月1日出口100万美元商品,结算日为9月30日,7月1日即期汇率为1美元=8.0元人民币,收入100万美元,可换到800万元人民币。
9月30日,即期汇率跌为1美元=7.9元人民币,收入100万美元,只换到790万元人民币。
少收入人民币10万元。
例二:总经理与财务主管的对话。
某美国企业在3月1日时得知将在7月底收到10亿日元。
9月份日元期货的现价为1日元=0.8500美分。
该公司财务主管在3月1日卖空80份9月份的日元期货,并准备在7月底收到日元时,将期货合约平仓。
当7月底收到日元时,即期价格为0.8750,期货价格为0.8800。
财务主管将期货平仓,期货损失=100000×(0.8800-0.8500)=3000万日元,折算为美元=3000×0.8750/100=26.25万美元。
我们可以设想一下总经理和财务主管的谈话。
总经理:我们3个月内在期货市场上损失了26万美元,我需要你的解释。
财务主管:采用期货的目的是为了对冲暴露的日元面临的风险,而不是为了获利。
不要忘了我们的日元在现货市场上也获得了更好的价格。
总经理:那有什么关系?这好像是说我们在纽约的销售量上升了就可以不用担心加利福尼亚的销售量下降。
财务主管:如果日元贬值了……
总经理:我不关心日元贬值会出现什么情况,事实是日元升值了。
我不得不向我们的股东说明由于你的行
为使利润降低了近30万美元。
这恐怕会影响你今年的奖金了。
财务主管:这不公平。
这全在于你怎么看待它……
从以上两个例子我们可以看出,汇率风险对企业经营业绩的影响还是比较明显的。
从第二个例子看,即使在经济高度发达的美国,当财务人员运用套期保值手段对冲外汇风险的时候,有时竟不能得到高层管理人员的理解。
随着中国加入世贸组织,特别是自2005年7月21日我国宣布对人民币实行有管理的浮动汇率制度以来,人民币兑美元的小幅升值就一直在持续。
实际上,在人民币汇率改革前,对于国内企业来说,汇率风险一直存在,只是由于我国一直实行接近固定汇率制度的盯住汇率制度,本币和外币间的汇率浮动区间非常小,而变动活跃的外币之间的汇率风险只涉及部分国内企业。
在这种情况下,大部分国内企业相当于生存在这种汇率制度的保护伞下,企业本应具有的防范汇率风险的能力没有得到充分发展。
目前国内的汇率制度已开始迈出了向市场化改革的步伐,但人民币汇率的波动幅度还不大,人民币汇率升值是大方向,企业可以比较容易地作出预期。
因此,总的来讲,投资者面临的汇率风险有限,国内企业对市场汇率变化的敏感程度还不够强烈,对于汇率衍生产品的需求也还不够迫切。
这种对汇率风险的轻视或者忽视正是人民币汇率改革前许多人担忧的问题之一。
因此,我们有必要一起来认真地认识一下汇率风险。
(案例来源: )
(1)案例中所涉及的汇率风险是指什么?它是如何产生的?
(2)企业在何种情况下会面临该类风险?具体影响如何?
(3)对中国企业来说,应该如何规避该类风险?。