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九年級物理長江寒假作業(yè)答案(留存版)

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【正文】 programs including documentaries, sports, serials and live events— including the CCTV New Year Gala and the Olympic 3D channel broadcasts from 10:30 midnight,Beijing time each are no viewing fees(費用)during the early phase of operation(運行階段),and viewers can get the full 3D effect by wearing 3D TV stations have worked together to produce the channel, including CCTV, Beijing, Tianjin, Shanghai, Jiangsu and Shenzhen TV station is working on a specific program, while the channel itself is broadcast through country39。{每小題1分,共5分) does the man usually do on Sundays? usually plays puter usually plays usually plays are they talking about? ’s the date today?’s March ’s March 39。為了驗證猜想,他關閉了門窗,選取兩支相同的溫度計,進行了如下的探究實驗。進入夏季以來,氣溫的升高加劇了旱情,這是因為氣溫的升高________(選填“增加”或“減小”)水的蒸發(fā)。他的依據(jù)是()A、酒精熔化時吸熱B、酒精液化時吸熱 C、酒精汽化時吸熱D、酒精升華時吸熱7.魔術師把手伸進一鍋沸騰的“油”,1分鐘、2分鐘??再把手拿出來——沒事!對這一現(xiàn)象的分析正確的是()A.魔術師有特異功能B.是因為“油”的沸點低 C.“油”在沸騰時的溫度不斷升高D.是因為手上沾有水吸收了“油”中的熱 ,能夠使蒸發(fā)減慢的是()A.將濕衣服晾在通風向陽處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,內能增加了 B.初冬的早晨,地面上結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.氣溫低于水銀熔點的地方,不能使用水銀溫度計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工作時,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所示是一個能吹出冷熱風的電吹風簡化電路圖,圖中A是吹風機,B是電熱絲。氟利昂是一種既容易___________,又容易____________的物質(填物態(tài)變化的名稱)。兩燈都發(fā)光。(每小題1分,共5分), 8 :00 July, , I , I , ’s a 39。t find my shoes.—Hurry up!Your father ______ for waiting wait 28.—I have ______ in learning English and I’m so you help me with it? —Sure, I’d love 29.—I’ve never had such a wonderful nk you for inviting me.— ’s 39。t open them u__________ I tell you to do is thinner than Lily, but Lily is t __________ than Lucy ? is the fifth month of a favorite season is __________(夏季)because I can swim in the river behind my are you g__________ to do tomorrow? 第七部分情景交際(10分)根據(jù)對話內容,在每小題的空白處填上合適的句子,使對話意思完整、通 順。 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。ll still have the fun of seeing the show up I __45__ by not trying as hard as I could?I don39。(共10分,每小題2分)Every year, wildfires(野火)destroy much forest are broken down, and thousands of people are stop help ing to stop are a special kind of jump from places into areas that difficult to reach by car or on race to put out fires as fast as they a fire site, Smokejumpers first examine the land and decide how to fight the main goal is to stop fire from basic tools such as shovels and axes, smokejumpers clear land of burnable material like plants and other dry carry water with them too, but not most smokejumpers are men, more women are ost important are your weight and in the example ,must be 54 to 91 kilograms, so they don’t get hurt when they land, or get blown by strong must be able to live in the wild Russia ,many smokejumpers know how to find food in the forest and even make simple furniture from work is dangerous, the hours are lo for these firefighters, smokejumpers isn’t just a love being able to jump out of planes, fight fires, and live in the 28yearold Russian smokejumpers Alexi Tishin says,“This is the best job for the strong and brave.” are Smokejumpers? do the jump from? ’s their main goal? should they have proper weight? ’s needed to be a smokejumpers? 書面表達(共25分)九、完成句子。enjoy。4.(江蘇省常州市2005年2分)如圖,已知AB∥CD,直線 分別交AB、CD于點E、F,EG平分∠BEF,若∠EFG=40176?!究键c】平行線分線段成比例。interest。s needs for word and 、閱讀短文,根據(jù)短文內容,從短文后的五個選項中選出能填入空白處的最佳選項。 you got did you get will you get you will get五、完形填空。請你以張武的名義用英語寫一封80100詞的信給某報社的中 學生信箱,談談你的這種情況,并希望老師們少布罝作業(yè),多 關愛學生的健康成 長。第六部分詞匯(10分)根據(jù)句意和首字母或漢語提示,寫出句中所缺單詞的正確形式,每空一詞。(每小題2分,共10分) am going to ______ every morning during the winter TV a guitar club English the evening of the holidays, I’ll watch TV the whole holidays only one hour one night will join a ______ will ______ on time in my winter English TV to bed and get up ’m sure I will ______ from the the guitar English better a good time and learn a lot 第二部分單項選擇(10分)從下列各題所給的A、B、C、D四個選項中,選擇能填入空白處的最佳選 項,并在答題卡上將該項涂黑。所以人會感到?jīng)隹?。(q柴油=107J/kg)三、簡答題(4分)26.夏天,扇扇子為什么會感到?jīng)隹?四、計算題(每小題7分,共14分)27.107J/Kg,107J的熱量?如果這些熱量全部被質量為50Kg、溫度為10℃的某種液體吸收,溫度升高到90℃。先后兩次對溫水冷熱程度的感覺是__________________(選填“左手感覺熱些”、“右手感覺熱些”或“一樣熱”)。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為小冰晶,下落而形成雨。圖中M是壓縮機的電動機,L是電冰箱內部的照晚燈。為了證明吹電風扇能加快蒸發(fā)吸熱的速度,小明又進行了實驗,他只增加一種物質,并且首先補充了一個步驟,然后重復前面實驗的操作。(每小題2分,共10分)。s traditions to be continued, survey res ults have show survey, done online by the China Youth Daily Social Investigation Center on 7,012 people, showed that 88%of respondents consider reuniting with family to be the most important part of the to the survey, % of respondents see the festival as an opportunity to visit relatives as many people live far from their Jianzhong, a professor of Beijing Normal University, said that Lunar New Year traditions, including visiting the elderly, holding family gettogethere and setting off firecrackers(放鞭炮),have mostly been preserved(保持),but some others are disappearing.“ During the Spring Festival,people woricing outside their hometowns hurry to get home and reunite with their causes a great national migration(遷徙),because the tradition of family gettogethers on Chinese New Years Eve is rooted in the hearts of the Chinese,” Wan :替換。請根據(jù)下列提示,以“The First English Comer in Our School”為題,用英語為學校的校報寫一篇2030詞的簡 訊。(共10分,每小題2分)Healthy Dentistry To: Patient’s name: Bill __17__Last checkup: __18__ agoCheckup time: __19__, July 4 7:30 in the __20__Room number: __21__知識運用(共25分)四、單項填空。t be able to afford nice things like a car and stuff.” I was quite surprised,because I don39。描述一次你與他人分享的經(jīng)歷,并談談你的感受。3,正確,故本選項正確;B、平行四邊形是中心對稱圖形,對角線的交點是對稱中心,故本選項正確; C、單項式 與 是相同字母的次數(shù)不同,不是同類項,故本選項錯誤; D、103有三個有效數(shù)字,正確。C、80176。【考點】三角形三邊關系。Jack will _____ his 。t hurt the team because Carla will be a very good petitor on the real think that making my best
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