【正文】 ，需要吸熱的是（）Ａ．初春，早晨河面結(jié)有薄冰Ｂ．夏天，打開冰棍紙看到“白氣” Ｃ．深秋，屋頂?shù)耐呱辖Y(jié)了一層霜Ｄ．冬天，冰凍的衣服逐漸變干 5．關(guān)于“熱機(jī)”，下列說法中錯(cuò)誤的是：（）A．通過技術(shù)改進(jìn)，可以使熱機(jī)的效率達(dá)到100%B．減少城市熱島效應(yīng)的措施之一就是倡導(dǎo)“綠色出行”。他的依據(jù)是（）A、酒精熔化時(shí)吸熱B、酒精液化時(shí)吸熱 C、酒精汽化時(shí)吸熱D、酒精升華時(shí)吸熱7．魔術(shù)師把手伸進(jìn)一鍋沸騰的“油”，1分鐘、2分鐘??再把手拿出來——沒事！對(duì)這一現(xiàn)象的分析正確的是（）A．魔術(shù)師有特異功能B．是因?yàn)椤坝汀钡姆悬c(diǎn)低 C．“油”在沸騰時(shí)的溫度不斷升高D．是因?yàn)槭稚险从兴樟恕坝汀敝械臒?，能夠使蒸發(fā)減慢的是（）A．將濕衣服晾在通風(fēng)向陽處B．將濕手伸到干手器下方吹 C．將新鮮的黃瓜裝入塑料袋D．將新收獲的玉米攤開晾曬9．下列有關(guān)熱現(xiàn)象的說法中正確的是（）A．高空中的冰晶在空氣中下落變成雨滴時(shí)，內(nèi)能增加了 B．初冬的早晨，地面上結(jié)有一層白霜屬于升華 C．所有物體在熔化過程中溫度不斷升高D．℃以下10．以下與物態(tài)變化相關(guān)的說法正確的是（）A．氣衣柜里放樟腦片，利用了汽化B．氣溫低于水銀熔點(diǎn)的地方，不能使用水銀溫度計(jì)C．北方的冬天，在菜窖里放幾桶水，是為了利用水的汽化吸熱D．電冰箱使用的制冷物質(zhì)工作時(shí)，在冷凍室要液化，在冷凝器要汽化 11．如圖所示，能正確的描述冰的凝固過程的圖象是（）12．如圖3所示是一個(gè)能吹出冷熱風(fēng)的電吹風(fēng)簡化電路圖，圖中A是吹風(fēng)機(jī)，B是電熱絲。在圖5所示的四個(gè)電路圖中，符合上述要求的是（）二、填空題(第11225題每空1分，其余每小題2分，共24分)16．我國家庭電路的電壓是___________V；對(duì)人體的安全電壓是不高于________V。投撒到云層中的干冰為氣體，并從周圍大量的熱，使空氣中的水蒸氣為小水滴或?yàn)樾”?，下落而形成雨。然后，先把左手放入溫水中，感覺溫水的冷熱程度；再把右手放入溫水中，感覺溫水的冷熱程度。這一現(xiàn)象表明____________（選填“物體的冷熱程度叫溫度”、“只憑感覺判斷溫度是可靠的”或“只憑感覺判斷溫度是不可靠的”）。電冰箱工作原理是利用了一種叫氟利昂的物質(zhì)作為熱的“搬運(yùn)工”，把冰箱冷凍室里的“熱” 搬運(yùn)到冰箱外邊。工作時(shí)，電動(dòng)壓縮機(jī)將氟利昂蒸氣壓縮并把它壓入冰箱的冷凝管里，在這里蒸氣變成液體并_________(“吸熱，或“放熱，)，這些熱被周圍空氣帶走。氟利昂這樣循環(huán)流動(dòng)，冰箱冷凍室里就可以保持相當(dāng)?shù)偷臏囟取＿M(jìn)入夏季以來，氣溫的升高加劇了旱情，這是因?yàn)闅鉁氐纳達(dá)_______(選填“增加”或“減小”)水的蒸發(fā)。23．臺(tái)式電腦使用一段時(shí)間后，為保證電腦的穩(wěn)定性，需要打開主機(jī)箱蓋除塵，這是因?yàn)樯犸L(fēng)扇的扇葉在轉(zhuǎn) 動(dòng)過程中與空氣摩擦帶上了，可以輕小物體，所以灰塵會(huì)附著在扇葉上。圖中M是壓縮機(jī)的電動(dòng)機(jī)，L是電冰箱內(nèi)部的照晚燈。（填“閉合”或“斷開”）25．20kg的柴油完全燃燒釋放的熱量是J。那么，這種液體的比熱容是多少？28．完全燃燒140克的干木柴所放出的熱量讓質(zhì)量為5Kg、初溫為30℃的水全部吸收，水溫會(huì)上升多少℃？（107J/Kg，大氣壓為1標(biāo)準(zhǔn)大氣壓）五、實(shí)驗(yàn)探究題[第30題(3)第二空、第31題、第33題第三、四空，34題每空各2分，其余每空1分，共28分] 29．請(qǐng)將圖所示的測量結(jié)果記錄在相應(yīng)的空格中。（2分）31．根據(jù)圖所示的實(shí)物電路，在虛方框內(nèi)畫出對(duì)應(yīng)的電路圖．32．將兩盞相同的燈L1和L2串聯(lián)或并聯(lián)后，直接接在電壓為6V的電源上。請(qǐng)根據(jù)下列操作及觀察到的現(xiàn)象，判斷燈LL2的連接方式，并填入表格中。站在電風(fēng)扇旁，小明覺觸涼爽。為了驗(yàn)證猜想，他關(guān)閉了門窗，選取兩支相同的溫度計(jì)，進(jìn)行了如下的探究實(shí)驗(yàn)。這一現(xiàn)象引發(fā)了小明的思考，為什么室溫沒有降低，而吹電風(fēng)扇卻覺得涼爽呢?小明聯(lián)想到液體蒸發(fā)的知識(shí)。為了證明吹電風(fēng)扇能加快蒸發(fā)吸熱的速度，小明又進(jìn)行了實(shí)驗(yàn)，他只增加一種物質(zhì)，并且首先補(bǔ)充了一個(gè)步驟，然后重復(fù)前面實(shí)驗(yàn)的操作。34．在“探究串聯(lián)電路中各點(diǎn)的電流有什么關(guān)系”時(shí)，小明設(shè)計(jì)實(shí)驗(yàn)如下．A點(diǎn)的電流IA B點(diǎn)的電流IB C點(diǎn)的電流Ic 第一次測量 第二次測量 把兩個(gè)燈泡LL2串聯(lián)起來接到如圖所示電路中，分別把圖中A、B、C各點(diǎn)斷開，把___________接入，測量流過的電流，看看它們之間有什么關(guān)系．換上另外兩個(gè)小燈泡，再次測量三點(diǎn)的________，看看是否還有同樣的關(guān)系．上表是兩次測量的記錄數(shù)據(jù)．分析和論證：(1)在拆接電路時(shí)，開關(guān)S必須處于________狀態(tài)．(2)結(jié)論：串聯(lián)電路中各處__________相等．漳州市浦南中學(xué)期中考試卷九年級(jí)物理答案一、單項(xiàng)選擇題(每小題2分，共30分)題號(hào) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 答案 A B D D A C B C A B A D B C D二、填空題(第11225題每空1分，其余每小題2分，共24分)16．22017．升華吸熱凝華18．.⑴右手感覺熱些只憑感覺判斷溫度是不可靠的 19．汽化（液化）液化（汽化）放熱吸熱 20．做功熱傳遞21．增加，減小22．負(fù)同種電荷相互排斥，異種電荷相互吸引 23．電荷（靜電）；吸引24．閉合 斷開閉合閉合 25．108J三、簡答題(4分)26．夏天，扇扇子可以加快空氣流動(dòng)（1分），從而加快蒸發(fā)（1分），蒸發(fā)時(shí)吸熱（2分）。27． Kg；103J/（Kg?℃）=mq=107J/kg=106J 根據(jù)Q=cmΔt可算出Δt=80℃，但在1標(biāo)準(zhǔn)大氣壓下，水的沸點(diǎn)是100℃，雖然繼續(xù)吸熱，但溫度始終保持100℃不變。每段對(duì)話或獨(dú)白讀兩遍。 does the woman want to go? post City should the woman do at the traffic lights? ．Go ，完成第7至第8小題。 does the man go to the gym every day? 39。s job? ，完成第11至第13小 題。39。對(duì)話讀兩遍。（共13分，每小題1分）從下面各題所給的A、B、C、D四個(gè)選項(xiàng)中，選擇可以填入空白處的最佳選項(xiàng)。 you got did you get will you get you will get五、完形填空。Several weeks ago, our headmaster, , told usthat our school had been chosen to pete on Smart Aleck—a game show which my best friend Carla and I both has a good imagination, and I know a lot of history, so we thought we’d be good __35__ for the few days later, held a meeting with everyone interested in told us that Smart Aleck uses a five member also said that three more people would be needed as backup（替補(bǔ)）.Unluckily four times that many students were at the said we would have a __37__ and the top eight scorers would bee the team and the agreed that this was a __38__ way to , all of the hopefuls went to the dining hall after would have to decide the starting lineup（陣容）. acted as the a couple of hours, all the __39__ on the team were set except and I __40__ for that last had to hold a oneonone petition between the two of winner would be on the team and the loser would be the through our twoperson petition,I was starting to pull I saw the look on Carla39。ll still have the fun of seeing the show up I __45__ by not trying as hard as I could?I don39。t __46__ won39。（共26分，每小題2分）A Join Us for a Day at Sun Valley Amusement Park Children aged 10 to 14 are invited to take part in the “Event of the Summer” at Sun Valley Amusement Park, the most popular amusement park on the East Valley has more than 80 amusement sports lovers, there are basketball courts, an indoor baseball field, and climbing amusement park would be plete without a gift Valley has won’t want to miss out on this day of us at Sun Valley Amusement Park on July 14 Register（登記） The cost of the trip is $ includes tickets and all We suggest that all children bring Buses leave at 9:00 AM and return at 5:00 Rain Date: Wednesday, July at the Children’s RecreationCenter at the Town Hall by July oneday registratio n will also be held on July 1 at the Brown more information, call Jane Parks at 5557267 can take part in the “Event of the Summer”? under 5 over 16 aged 1014 aged 59 children had better bring ____ basketball gift can children register at the Brown School? July 1 July 3 July 14 July 16 B Street Ping Pong— Ping!Do you like table tennis? If you had travelled to cities in the UK like London or Birmingham last summer, you might have seen one of the dozens of free tablesthat were there as part of a project（項(xiàng)目）called Ping!.What is Ping!?[ xk b o m] Ping！is a threeyear table tennis has been running since 2010 and this year, 2012, is the final idea is to put free table tennis tables in eight different towns in the UK for four weeks during the table es with its own bats and balls and is free to can find the tables does Ping!hope to achieve? It would be great if Ping！helped find a new Olympic table tennis star but what Ping!really achieve is just to get people playing and having fun together.“Putting a ping pong table on the street gives people a chance to connect with other people,” said MeeraSodha, Ping!Project of the towns that took part in the project was Hull, a city in tables were put into the , an ESOL student , said, “I really enjoyed playing table tennis in the was alsoagood way for me to practise my English and meet people.” 50 When did the Ping!project start? 39