资源描述
,#,/,16,数学,试,卷,第,1,页,(,共,8,页),第,6,题第,7,题第,8,题,7,.,中国奇书易经中,记,载,远古时期,人们通,过,在绳子上打结来计数,,即,“结绳,计 数,”,如,图,,,一,位,母,亲,在,从右,到,左,依,次,排,列,的,绳,子,上打,结,,满,5,进,1,,,用,来,记,录孩,子,数学,试,卷,第,2,页,(,共,8,页),绝,密,启用,前,2020,年四川省,达,州,市,高,中,阶段,学,校招生,统,一考,试,暨初中,学,业水,平,考,试,数,学,本试,卷,分,为,第,卷,(,选,择,题,),和,第,卷,(,非,选,择,题,)两,部,分,,,共,8,页 考试,时,间,120,分,钟,,满,分,120,分,温馨,提,示:,1,答,题,前,,,考,生需,用,0.5,毫米,黑,色,签,字,笔,将,自,己,的,姓,名,、,准,考,证,号,、,座,位,号,正,确,填,写在,答,题,卡,对,应,位,置待,监考,老,师,粘,贴,条,形,码,后,,,再认,真,核,对,条,形,码,上,的,信,息与,自己,的,准考,证,上,的,信,息,是,否,一,致,2,选,择,题,必,须,使,用,2B,铅,笔在,答,题,卡,相,应,位,置,规,范,填,涂,如,需,改动,,,用,橡,皮,擦,擦,干,净后,,,再,选,涂,其,他答,案标,号,;非,选,择,题用,0,.,5,毫米,黑色,签,字,笔,作,答,,答,案必,须写,在,答题,卡对,应,的,框,内,,,超,出,答,题,区答,案,无,效,;,在,草,稿,纸,、,试题,卷,上,作,答,无,效,保,持,答,题,卡,整洁,,,不要,折,叠,、,弄破,、,弄皱,,,不得,使用,涂,改,液,、,修,正带,、,刮,纸,刀,考,试,结,束,后,,,将,试,卷及,答题,卡,一,并,交,回,第,卷(选择题,共,30,分),一、单项选择题(每小题,3,分,共,30,分),1,.,人,类,与,病,毒,的,斗,争,是,长,期的,,,不,能,松懈,据,中央,电视,台,“,朝,日,新,闻,”,报,道,,截,止,北京,时间,2020,年,6,月,30,日,凌,晨,,,全,球,新,冠,肺,炎,患,者确,诊病,例达,到,1,002,万,1,002,万,用,科,学记,数,法,表,示,,,正,确,的是,(,),A,.,1.002,10,7,C,.,1002,10,4,B,.,1.002,10,6,D,.,1.002,10,2,万,2,.,下,列,各,数,中,,,比,3,大,比,4,小,的,无,理,数是,(,),A,.,3,.,14,B,.,1,0 3,C,.,12D,.,17,3,.,下,列,正,方,体,的,展,开,图,上,每个,面,上,都,有,一,个,汉,字,其中,,,手,的,对,面,是,口,的是,(),A,4,.,下,列,说,法,正,确,的是,B,C,D,(,),A,.,为,了,解,全,国,中,小学,生的,心理,健,康,状,况,,,应,采,用,普,查,B,.,确,定,事,件,一,定,会,发,生,C,.,某,校,6,位,同,学,在,新,冠肺,炎防,疫,知,识,竞,赛,中,成,绩,分,别为,98,、,97,、,99,、,99,、,98,、,96,,,那 么这,组,数,据,的,众数,为,98,D,.,数据,6,、,5,、,8,、,7,、,2,的,中位,数,是,6,5,.,图,2,是,图,1,中,长,方,体,的,三视,图,,,若,用,S,表示,面,积,,,S,主,x,3,x,,,S,左,x,x,,,则,S,俯,22,(,),图,1,B,.,x,2,3,x,2,图,2,C,.,x,2,2,x,1,D,.,2,x,2,4,x,A,.,x,2,4,x,3,6,.,如,图,,,正,方,体,的,每,条棱,上放,置,相,同,数,目,的,小球,,,设每,条,棱,上,的,小,球,数,为,m,,,下列,代,数,式表,示,正,方,体,上,小,球,总,数,,则,表,达,错,误,的,是,A,.,12,m,1,B,.,4,m,8,m,2,C,.,12,m,2,8,(,),D,.,12,m,16,在,此,卷,上,答,题,无,效,毕业,学,校,姓,名,考,生,号,数学试卷 第 1 页(共 8 页)第 6 题第 7 题第,1,/,16,制作,扇,形,统,计,图,以,下,是,打乱,了,的,统,计,步,骤:,数学,试,卷,第,3,页,(,共,8,页),数学,试,卷,第,4,页,(,共,8,页),自出,生,后,的,天,数,由,图,可,知,,孩,子,自,出,生,后,的,天,数,是(,),A,.,10B,.,89C,.,165D,.,294,8,.,如,图,,,在,半,径,为,5,的,O,中,将,劣,弧,AB,沿弦,AB,翻折,,,使,折,叠后的,AB,恰,好,与,OA,、,OB,相切,,,则,劣,弧,AB,的长为,A,.,5,B,.,5,C,.,5,324,(,),D,.,5,1,2,22,9,.,如,图,,,直,线,y,kx,与抛,物,线,y,ax,bx,c,交于,A,、,B,两点,,,则,y,ax,6,b,k,x,c,的图,象,可,能,是,(,),ABCD,10,.,如,图,,,BOD,45,,,BO,DO,,点,A,在,OB,上,,四,边形,ABCD,是矩形,,,连接,AC,、,BD,交于,点,E,,连,接,OE,交,AD,于,点,F,下,列,4,个,判,断,:,OE,平,分,BOD,;,OF,BD,;,DF,2,AF,;若,点,G,是线,段,OF,的中点,,则,AEG,为等腰直角三 角形,正,确,判,断,的,个,数是(,),A,.,4,B,.,3,第,卷,(,非选,择,题,C,.,2,共,90,分),D,.,1,二、填空题(每小题,3,分,共,18,分),11,.,2019,年,是,中,华,人,民共,和国,成,立,70,周,年,,,天,安门,广场,举,行,了,盛,大,的,国,庆,阅,兵式,和,群众,游,行活,动,其,中,,群,众,游,行,队伍,以,“同,心,共筑,中,国,梦,”为,主,题,,包,含有,“,建国,创,业,”“,改,革,开,放,”“,伟,大,复,兴,”,三,个,部,分,,,某,同,学,要统,计,本,班,学,生,最,喜,欢,哪,个部,分,,,绘,制,扇,形,统,计,图,收,集,三,个,部,分,本,班,学,生,喜欢,的,人数,计,算,扇,形,统,计,图,中,三,个,部分,所,占,的,百,分,比,其中,正,确,的,统,计,顺,序,是,12,.,如,图,,,点,P,2,1,与,点,Q,a,b,关于,直,线,l,:,(,y,1),对称,,,则,a,b,第,12,题第,13,题第,14,题,13,.,小,明,为,测,量,校,园,里,一颗,大树,AB,的高,度,,,在,树底部,B,所,在的,水,平,面,内,,,将测,角,仪,CD,竖直,放,在与,B,相,距,8,m,的,位置,,,在,D,处,测,得,树,顶,A,的仰,角,为,52,若,测,角,仪,的,高度是,1,m,,,则,大,树,AB,的高,度,约,为,(,结,果,精,确,到,1,m,参,考数,据,:,sin,52,0.78,,,cos,52,0.61,,,tan,52,1.28,),14,.,如,图,,,点,A,、,B,在,反,比,函,数,y,12,的图,象,上,,A,、,B,的纵,坐,标,分,别是,3,和,6,,,连接,x,O,A,、,O,B,,,则,OA,B,的,面,积,是,已,知,ABC,的三,边,a,、,b,、,c,满,足,b,|,c,3,|,a,2,8,a,4,b,1,19,,,则,ABC,的内,切圆,半,径,已,知,k,为正整数,,无,论,k,取何值,直,线,l,1,:,y,kx,k,1,与直,线,l,2,:,y,k,1,x,k,2,都交,于,一,个,固,定,的,点,,,这,个点,的,坐,标,是,;,记直,线,l,1,和,l,2,与,x,轴,围,成,的,三,角,形 面积,为,S,k,,,则,S,1,,,S,1,S,2,S,3,S,100,的值,为,三,、,解答题,:,解答时,应,写出必要的文字说明,、,证明过程或演算步,骤,(共,72,分),1,2,3,17,.(,5,分,),计,算:,2,2,(,5),0,3,125,制作扇形统计图以下是打乱了的统计步骤:数学试卷 第 4 页,2,/,16,数学,试,卷,第,5,页,(,共,8,页),数学,试,卷,第,6,页,(,共,8,页),18,.(,7,分,),求,代,数,式,2,x,1,x,1,2,x,2,x,1,x,2,x,1,的,值,,其中,x,2,1,19,.(,7,分,),如,图,,,点,O,在,ABC,的边,BC,上,,,以,OB,为半,径,作,O,,,ABC,的平,分,线,BM,交,O,于点,D,,,过,点,D,作,DE,BA,于点,E,(,1,),尺,规,作,图,(,不,写,作法,,保,留,作,图,痕,迹,),,补,全图,形;,(,2,),判,断,O,与,DE,交点,的,个,数,,并说,明,理,由,20,.(,7,分,),争,创,全,国,文,明城,市,,,从,我,做,起,尚,理,中,学,在,八年,级,开,设,了,文,明,礼,仪,校,本课,程,,,为了,解,学,生,的,学,习,情,况,,,随机,抽取,了,20,名,学,生,的测,试成,绩,,,分,数,如,下:,94 83 90 86 94 88 96 100 89,82,94 82 84 89 88 93 98 94 93,92,整理,上,面,的,数,据,,,得,到,频,数分,布,表,和,扇,形,统,计,图:,等级,成绩,/,分,频数,A,95,x,100,a,B,90,x,95,8,C,85,x,90,5,D,80,x,85,4,根据,以,上,信,息,,,解,答,下,列,问题,(,1,),填,空,:,a,,,b,;,(,2,),若,成,绩,不,低于,90,分,为优,秀,,,估,计,该,校,1,200,名,八年,级,学,生,中,,,达,到,优,秀,等,级,的 人数;,(,3,),已,知,A,等,级,中,有,2,名,女生,,,现,从,A,等,级,中随,机,抽取,2,名,同,学,,,试,用,列表,或画树,状图,的,方,法,求,出,恰,好,抽,到,一男,一,女,的,概,率,21,.(,8,分,),如,图,,,ABC,中,,BC,2,AB,,,D,、,E,分别,是,边,BC,、,AC,的中,点,将,CDE,绕点,E,旋,转,180,度,,得,AFE,判,断,四,边,形,ABDF,的形,状,,并证,明,;,已知,AB,3,,,AD,BF,8,,求,四,边形,ABDF,的,面积,S,22,.(,8,分,),某,家,具,商,场计,划购,进,某,种,餐,桌,、,餐,椅,进,行销,售,,,有,关,信,息,如,下,表,:,原进,价,(,元,/,张),零售,价,(,元,/,张),成套,售,价,(,元,/,套,),餐桌,a,380,940,餐椅,a,140,160,已,知,用,600,元,购,进,的,餐,椅,数量,与,用,1300,元,购,进,的餐,桌数,量,相,同,求,表,中,a,的值;,该,商,场,计,划,购,进,餐椅,的数,量,是,餐,桌,数,量的,5,倍,还多,20,张,,,且,餐,桌,和,餐,椅的总 数量,不超,过,200,张,若将,一半,的,餐,桌,成,套,(一,张餐,桌和,四,张,餐,椅,配,成,一,套,),销 售,,,其,余,餐,桌、,餐,椅,以,零,售方,式,销,售,,请,问,怎,样进,货,,,才,能,获,得,最,大,利,润?,最 大利,润,是,多,少?,23,.(,8,分,),如,图,,,在,梯,形,ABCD,中,,,AB,CD,,,B,90,,,AB,6,cm,,,CD,2,cm,P,为线段,BC,上,的,一,动点,,,且,和,B,、,C,不重,合,,,连接,PA,,,过点,P,作,PE,PA,交射,线,CD,于点,E,聪聪,根,据,学,习,函,数,的,经,验,
展开阅读全文