【正文】 著中人物和情節(jié)的描述不正確的一項是()(2分)A、趙云是蜀國五虎將之一，以驍勇善戰(zhàn)著稱。，防止不要發(fā)生意外事故。，卻在從容不迫地抹桌子，好像什么事也沒有發(fā)生。，也是一項十分艱巨的工程，不可能一揮而就。n)()(2分) 冥思暇想 談笑風(fēng)生 天翻地覆 川流不息 見異思遷 申張正義 義憤填膺 栩栩如生 截然不同 惟妙惟肖 迎刃而解 自出新裁 ()(2分)，狂風(fēng)吹得他有些搖晃，使他越發(fā)顯得老氣橫秋。)匿名(n236。o)提防(dī)參差不齊(cī)(j237。)殷紅(yīn)惟妙惟肖(xi224。)緋紅(fěi)(x249。n)淳樸(ch第四篇：人教版八年級語文下冊期中試卷及答案人教版八年級語文下冊期中試卷及答案 班級： 姓名：一、基礎(chǔ)知識及其運(yùn)用。（2）圖甲中警鈴的接線柱C應(yīng)與接線柱________相連，指示燈的接線柱D應(yīng)與接線柱________ 相連（均選填“A”或 “B”）。⑴圖乙可知，當(dāng)環(huán)境溫度為40℃時，熱敏電阻阻值為_______ Ω。當(dāng)線圈中的電流大于等于50毫安時，繼電器的銜鐵將被吸合，警鈴響。⑶、求青蒿素中碳元素的質(zhì)量分?jǐn)?shù)3小明利用熱敏電阻設(shè)計了一個“過熱自動報警電路”，如圖甲所示。⑴、青蒿素由種元素組成。2氟利昂是一種常見的制冷劑。閉合開關(guān)后用電磁鐵吸引大頭針，并移動滑動變阻器的滑片⑴、實(shí)驗中小強(qiáng)是通過電磁鐵來判斷其磁性強(qiáng)弱的。⑶、請推測有關(guān)B元素組成的單質(zhì)的兩點(diǎn)信息：三、實(shí)驗探究題（每空2分，共14分）2小強(qiáng)要研究電磁鐵的磁性強(qiáng)弱跟什么因素有關(guān)。閉合開關(guān)s后，當(dāng)導(dǎo)體AB左右運(yùn)動時在回路中________產(chǎn)生感應(yīng)電流(填“能”或“不能”)。則：甲的單質(zhì)是，乙元素是，乙和丙形成的化合物的化學(xué)式是，丁的離子符號為。屬于混合物的是；屬于單質(zhì)的是；屬于化合物的是；屬于氧化物的是。⑶、用于配制生理鹽水的氯化鈉晶體是由構(gòu)成的。（用“分子”或“原子”或“離子”填入下列空格）⑴、體溫計中的汞是由汞構(gòu)成的。2，則該化合物的化學(xué)式為（）A、A2B3B、A3B4C、A2B5D、AB二、填空題（第21—24題，每空1分，第25—27題，每空2分，共32分）2電冰箱門上裝有磁性密封條，是利用了 的原理，而磁帶和磁卡則是利用了它們能被的原理。在Na5P3O10中磷元素的化合價為（）A、+3價B、+4價C、+5價D、+6價1如圖所示實(shí)驗裝置，彈簧測力計下面掛著條形磁鐵，螺線管中插有鐵芯，開關(guān)S撥在觸點(diǎn)②位置。在現(xiàn)實(shí)生活中常溫超導(dǎo)還沒有發(fā)現(xiàn)，但科學(xué)家們卻能把正方體磁體漂浮在通電導(dǎo)體的上方，產(chǎn)生類似的現(xiàn)象。推測該元素為117號元素的依據(jù)是（）A、中子數(shù)B、質(zhì)子數(shù)C、電子數(shù)D、中子數(shù)和電子數(shù)要增強(qiáng)電磁鐵的磁性，可采取的方法是（）A、增大線圈中的電流B、降低兩端的電壓C、減少線圈的匝數(shù) D、改變線圈中電流的方向下列說法正確的是（）A、經(jīng)驗表明，只有36伏的電壓對人體才是安全的B、在有電源的現(xiàn)場起火，為了滅火救災(zāi)，必須先切斷電源或迅速用水將火撲滅C、家庭電路中引起的觸電事故都是由于人體直接或間接跟火線連通造成的D、當(dāng)高壓輸電線斷頭線落在人附近地面時，為了安全應(yīng)迅速向遠(yuǎn)離斷頭的地方大步離去如圖所示，對甲、乙、丙、丁四幅實(shí)驗裝置圖解釋正確的是（）A．甲是磁場能產(chǎn)生電流B．乙是電磁繼電器，它是利用電磁鐵來控制工作電路的一種開關(guān)C．丙是通電導(dǎo)體在磁場中受到力的作用D．丁是閉合電路的一部分導(dǎo)體放入磁場中，導(dǎo)體中就產(chǎn)生電流1992年，我國科學(xué)家首次發(fā)現(xiàn)了汞元素的一種新原子，這種汞原子的相對原子質(zhì)量為208，核電荷數(shù)為80，這種汞原子的核外電子數(shù)為（）A、80B、128C、208D、288下列各種物質(zhì)中，前一種是單質(zhì)，后一種是混合物的是（）A、白磷、石灰水B、煤、氯化鉀C、金屬鎂、五氧化二磷D、雨水、白磷科學(xué)研究中常常會用到“控制變量法”、“等效替代法”、“模型法”、“類比法”、等研究方法。She is ____________ a lovely girl ___________ everyone likes her.第三篇：八年級科學(xué)下冊期中測試卷八年級科學(xué)下冊期中測試卷班級：姓名：成績：相對原子質(zhì)量C—12H—1O—16一、選擇題（每小題2分，共40分）加油站必須粘貼的標(biāo)志是（）AB C D下列有關(guān)磁場和磁感線的說法正確的是（）A、只有磁鐵周圍才有磁場B、磁感線是由鐵屑形成的C、磁感線是客觀存在的閉合曲線D、越靠近磁極的地方磁感線越密在生活中，我們會遇到這些情況：①插座中的兩個線頭相碰；②開關(guān)中的兩個線頭相碰；③電路中增加了大功率用電器；④戶外輸電線絕緣皮損壞。He asked me __________ he could__________ my 。Our idea will _________ _________ sooner or 。我是在2001和2004年去那里的。He was reading ________ he was waiting for a ，但他并不感到孤獨(dú)。He was helping the teacher ________________ the books at this time 。 _________(爭吵)her friend the day before can help you_______(打開)your eyes to the outside hope my father and mother are _________________(身體健康) ________(大概)thinks she39。will e gone。es 。seen uncle has just won’t e back this gone toB goneC beenD been to44.—How long have you ______the puter?—For about half a boughtB foundC hadD borrowed boys _______themselves last night, did they?A enjoyedB didn’t enjoyC haven’t enjoyedD have enjoyed you returned the book to the library ____?Yes, I have ____ returned , , , , already have you lived here?Since last far has been away a month a a month a month did your father ____ your mother? married she is over 40, ____ she looks , but , ,/D./, but brother’s never been late for work, __________? ’t ’t he a boy nor a girl __________ Hawaii before in our been been gone gone to spend as much time as we can ______ read __________ great changes in our hometown in the past fifteen was seen ________ something from the be I see the headmaster at the moment, please ?I39。seenC Will。was washing ’s little milk in the bottle,_____?A isn’t thereB is thereC is itD isn’t it42.—_____you ______the football match yesterday?—Yes, I was Did。washedC was listening。dead I __________to the English programes, mother_______ 。been deadC did。put on 12．It’s dangerous _________ in the ．playingB．to playC．playD．plays 13．How much did you______ the house?A．pay forB．cost forC．paid forD．cost on14．Don’t leave your books on the ．take away itB．take them awayC．take away themD．take it away 15．My mother wants me ________milk every ．drinkB．drinksC．drinkingD．to ．Jim helped Li Lei ________ his English last ．inB．byC．withD．a(chǎn)t 17．─ Why not ________ the music club?─ I’m can’t sing or ．to joinB．joinC．joiningD．to join in ____________ better in English if he works doing19．I’m going to ________ time with my grandparents this ．spendB．takeC．costD．pay 20．The accident________ on a cold winter ．wan happenB．happenedC．was happenedD．happens played ______ last happily 22．He said it was ________ better if he did his own ．manyB．muchC．moreD．very 23．─ ________?─ It doesn’t ．How are youB．How much is your watchC．Where is your watchD．What’s wrong with your watch 24．There ________ a football game next ．is going to haveB．is going to beC．will haveD．Will be have 25．The teacher made him ________ the word five ．writeB．to writeC．writingD．writes 26．I have two is yellow, ________ is ．otherB．the otherC．othersD．a(chǎn)nother 27．There are some beautiful trees ________ our ．in frontB．a(chǎn)t the front ofC．in the front ofD．in front of 28．I don’t know ________ ．where he wentB．where did he goC．where to goD．he where to go 29．─ Rose and I will go to the cinema.─ ．I, tooB．Me, tooC．I againD． of course, I will 30．Jim went to will be back ________ a few ．a(chǎn)fterB．inC．a(chǎn)tD．on 31.—Nice to meet you , ?—Everything is What are you doingB Where have you been/ 4C How is it goingD What’s wrong with you32.—Susan stays alone in the classroom and looks sad.—____to her? A What happensB What has happenedC What is happeningD What was happening you read English newspapers, please _______translate every do try toB try to notC not try toD try not ’s play football together,______?A has heB will youC shall weD is you give me some _________ of advice?A pieceB a pieceC one pieceD pieces young people find ______exciting to watch a football itB thisC thatD one will _____us several years to learn a foreign language costB takeC spendD use38.—Have you read a book called Jane Eyre?—Who _____itA writesB has writtenC was writingD wrote long ______your grandma_________?A has。wearC．wearing。more 9．I need to get money to pay _________ summer ．forB．withC．inD．on 10