天津市耀华嘉诚国际中学2019-2020学年七年级第二学期线上学习阶段性评估检测数学试题
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耀华中学高二年级语文学科居家学习网上测试试卷(共100分)一、基础选择题:(每题3分,共45分)阅读下列文字,完成下面小题。
热力学第二定律说,一切孤立系统都朝着熵增的方向,这是大前提。
但生命的神奇就在于,生命通过同环境交换物质与能量,为自己制造“负熵”,并向环境释放“正熵”,以秩序..。
同样,由个人有机组成的共同体,也必须持续制造或有效输入“负..来对抗无序与混乱熵流”、有力“正熵流” 的生成,并令“负熵”足以抵消“正熵”而有余,才能健壮强轫..的共同体。
她需要每一个你付出,需要..、维持向上的活力。
这个国度就是你我所依恃每一个你贡献无数涓滴....的容颜与活力。
..“负熵”,才能永保青春目光锁定那更美好的未来,你一直在努力,我们一直在呐喊。
唯有每一个普通人的行动与努力带来的每一个涓滴改进,汇入历史的江河,才是最强大的“熵减”力量。
“天下之至柔,驰骋..天下之至坚”,这就是柔韧的力量。
每一个涓滴改进,每一处“熵减”,都不应是,而应是义之所在;都不应是高不可攀....可以触及。
小人物从来不....,而应是踮起脚尖是大时代的被动接受者,每一个小人物的参与..和行动,汇成大时代的洪流;每一个小人物的祈望..成长。
..与呐喊,汇成大时代的最强音;每一个小人物的涓滴“熵减”,汇成大时代的茁壮1. 文中加点的字音和字形,全都正确的一组是()A. 秩序混乱(hǔn) 强轫B. 依恃(shì) 涓滴(juān) 永保青春C. 驰骋高不可攀踮起脚尖(diǎn)D. 参与(yù) 祈望(qǐ) 茁壮2. 依次填入文中横线处的词语,最恰当的一组是()A. 演化控制强人所难B. 演变抑制勉为其难C. 演化抑制强人所难D. 演变控制勉为其难【答案】1. C 2. C【1题详解】本题主要考查识记并辨析现代汉语中常见汉字的读音和字形的能力。
解答本题时,要结合平时积累的字音、字形知识技巧进行辨析,平时要关注同义词、近义词、形近字、音同音近字的积累。
天津市耀华嘉诚国际中学2019-2020学年第二学期线上学习阶段性评估检测高二年级语文试卷第Ⅰ卷一、基础知识。
(16分,每题2分)1、下列各组中加点词语的读音无误的一组是()A.曲肱.(gōng)社稷.(jì)稽.首(jī)鲜.克有终(xiǎn)B.踰矩.(jǔ)弑.君(shì)信禀.(bǐng)什伯.之器(bǎi)C.远徙.(xǐ)戚戚..(qī)忿懥.(zhì)观其徼(jiǎo)D.孝悌.(tì)舟舆.(yú)布橐.(tuó)靡.不有初(mǐ)2、下列各项中没有错别字的一项是()A.驰骋正言若反憔悴气如悬丝B.敖惰无为而治典籍灯火澜珊C.褒贬格物致知哀矜血气方钢D.梵语克己复理信禀矫柔妆束3、下列加点词的解释,不正确的一项是()A.中庸其.至矣乎其,表揣测语气B.敏于事而慎于言,就.有道而正焉就:就是C.甘其食,美.其服。
美:使……觉得美D.率.性之谓道率,遵循,按照。
4、下列各句句式不相同的一项()A.彼且奚适也?B.天下未之有也。
C.柔之胜刚,天下莫不知。
D.何以利吾家?5、读下文,选出画线文句翻译正确的一项()大学之道(1),在明明德(2),在亲民(3),在止于至善。
知止(4)而后有定,定而后能静,静而后能安,安而后能虑,虑而后能得(5)。
物有本末,事有终始。
知所先后,则近道矣。
A.大学的根本宗旨在于弘扬光明正大的品德;在于使人亲近;在于使人停止“至善”。
B.大学的根本宗旨在于弘扬光明正大的品德;在于使人弃旧图新、去恶从善;在于使人知道要达到的最高境界“至善”。
C.大学的根本宗旨在于明白德育;在于使人弃旧图新、去恶从善;在于使人知道要达到的最高境界“至善”。
D.大学的根本宗旨在于弘扬光明正大的品德;在于使人弃旧图新、去恶从善;在于到达善良之地。
6、“在中国传统教育里,最重要的是‘四书’,”一句中“四书”指的是()A.《诗经》《尚书》《礼记》《易经》B.《大学》《中庸》《论语》《孟子》C.《春秋》《论语》《孟子》《礼记》D.《韩非子》《列子》《孟子》《庄子》7、下列各项表述不正确的一项是()A.《论语》所体现的孔子儒家思想的核心是“仁”。
天津市耀华嘉诚国际中学2019-2020学年八年级下学期线上学习阶段性评估检测语文试题(PDF版)天津市耀华嘉诚国际中学2019—2020学年度第二学期线上学习阶段性评估检测八年级语文试卷第Ⅰ卷(50分)一、选择题(每小题2分,共50分)1.下列加点字注音正确的一项是A. 凫.水(fú)枸杞.(jǐ) 连翘.(qiào)戛.然而止(jiá)B. 糜.子(mí)锵.然(qiāng) 山麓.(lù)恣.意妄为(zì)C. 狩.猎(shǒu)两栖.(qī)窈.窕(yǎo)如法炮.制(páo)D. 褶.皱(zhě)幽悄.(qiǎo)俶.尔(chù)追本溯.源(sù)2. 下列词语中书写有误的一项是A. 燎原雾霭人情世故B. 躁热元霄翠羽流苏C. 辐射晦暗富贵荣华D. 严峻褪色叹为观止3.依次填入下列句中空缺处的词语恰当的一项是①加快实施教育扶贫工程,让贫困家庭子女都能接受公平有质量的教育,贫困代际传递。
②在实现中华民族伟大复兴的新征程上,应对重大挑战、重大风险、解决重大矛盾,迫切需要迎难而上、挺身而出的担当精神。
③当的现代社会与传统文化有了一次次美丽的“邂逅”,中华文化基因逐渐苏醒,这危机中的微熹,弥足珍贵。
A.阻挠抵制喧嚷 B.阻挠抵御喧嚣C.阻断抵御喧嚣 D.阻断抵制喧嚷4.下列语句中没有语病的一项是A.《舌尖上的中国》这部风靡海内外的纪录片,用镜头展示烹饪技术,用美味包裹乡愁,给观众带来了心灵的震撼。
B.川航机组突遇险情,成功备降,强烈地震撼着网友的心,纷纷为他们的专业素养点赞。
C.为了提高优秀传统文化特色,学校举办了“寻找家乡名人名画”的活动。
D.性格懦弱的李娟的母亲,面对突如其来的家庭变故,表现出了异常的坚韧。
5.下列句子中的标点符号使用有误的一项是A.姑苏城与金鸡湖,是苏州的双面绣:一面是古老的斑斓,一面是现代的辉煌!B.第四届世界互联网大会12月3日至5日举行,主题为《发展数字经济促进开放共享——携手共建网络空间命运共同体》。
人教版七年级第二学期下册期中模拟数学试卷(含答案)一、选择题:(每小题3分,共36分,在每小题给出的四个选项中,只有一项是符合题意的,请将符合题意的序号填在题号的括号内.)1.(3分)下列实数中,无理数是()A.﹣2B.0C.πD.2.(3分)下列运算中错误的是()A.x2•x3=x5 B.x3•x3=2x3C.(﹣x)4•(﹣x)4=x8D.x•x3=x43.(3分)下列说法正确的是()A.1的平方根是1B.﹣49的平方根是±7C.的平方根是﹣2D.4是(﹣4)2的算术平方根4.(3分)已知x<y,则下列不等式一定成立的是()A.﹣x>﹣y B.1+x>1+y C.D.3x﹣3y>0 5.(3分)﹣8的立方根是()A.2B.﹣2C.±2D.﹣6.(3分)3﹣2可表示为()A.2B.﹣2C.D.7.(3分)下列各组数中,互为相反数的是()A.﹣2与﹣1B.﹣2与C.|﹣3|与3D.﹣3与8.(3分)一个长方形的长、宽分别是2x﹣3、x,则这个长方形的面积为()A.2x﹣3B.2x2﹣3C.2x2﹣3x D.3x﹣39.(3分)不等式3x﹣1<x+3的解集在数轴上表示正确的是()A.B.C.D.10.(3分)﹣27的立方根与的平方根之和为()A.0B.6C.0或﹣6D.﹣12或6 11.(3分)已知a+b=3,ab=2,则a2+b2的值为()A.3B.4C.5D.612.(3分)若不等式组无解,那么m的取值范围是()A.m≤2B.m≥2C.m<2D.m>2二、填空题:(每小题3分,共18分,请将答案直接写在题中的横线上.)13.(3分)9的平方根是.14.(3分)据统计,2017年全国普通高考报考人数约为9400000人,数据9400000用科学记数法表示为.15.(3分)若>5是关于x的一元一次不等式,则m=.16.(3分)计算:﹣|﹣2|=.17.(3分)不等式组的最大整数解为.18.(3分)对实数a、b,定义运算☆如下:a☆b.例如2☆3=2﹣3=.计算[2☆(﹣4)]×[(﹣3)☆(﹣2)]=.三、解答题:(本大题共8小题,共计66分.)19.(6分)计算:(π﹣3.14)0+++|﹣3|.20.(6分)解不等式:21.(8分)先化简,再求值:a2•a4﹣a8÷a2+(﹣a3)2÷(a6﹣2)0,其中a=﹣1.22.(8分)解不等式组:,并把解集在数轴上表示出来.23.(8分)先阅读下面的内容,再解决问题:例题:若a2﹣2ab+2b2+6b+9=0,求a、b的值.解:因为a2﹣2ab+2b2+6b+9=0所以a2﹣2ab+b2+b2+6b+9=0所以(a﹣b2)+(b+3)2=0所以a﹣b=0,b+3=0所以a=﹣3.b=﹣3根据以上例题解决以下问题,若x2+2y2+2xy﹣4y+4=0,求x y的值.24.(8分)化简求值:,其中x=﹣1,y=1.25.(10分)已知a、b为实数,且满足关系式|a﹣2b|+(3a﹣b﹣10)2=0.求:(1)a、b的值;(2)求+12的值.26.(12分)“全民阅读”深入人心,好读书,读好书,让人终身受益.为满足同学们的读书需求,学校图书馆准备到新华书店采购文学名著和动漫书两类图书.经了解,20本文学名著和40本动漫书共需1520元,20本文学名著比20本动漫书多440元(注:所采购的文学名著价格都一样,所采购的动漫书价格都一样).(1)求每本文学名著和动漫书各多少元?(2)若学校要求购买动漫书比文学名著多20本,动漫书和文学名著总数不低于72本,总费用不超过2000元,请求出所有符合条件的购书方案.2017-2018学年广西贺州市昭平县七年级(下)期中数学试卷参考答案与试题解析一、选择题:(每小题3分,共36分,在每小题给出的四个选项中,只有一项是符合题意的,请将符合题意的序号填在题号的括号内.)1.(3分)下列实数中,无理数是()A.﹣2B.0C.πD.【分析】根据无理数的定义进行解答即可.【解答】解:∵=2是整数,∴﹣2、0、2是整数,故是有理数;π是无理数.故选:C.【点评】此题主要考查了无理数的定义,注意带根号的要开不尽方才是无理数,无限不循环小数为无理数.如π,,0.8080080008…(每两个8之间依次多1个0)等形式.2.(3分)下列运算中错误的是()A.x2•x3=x5 B.x3•x3=2x3C.(﹣x)4•(﹣x)4=x8D.x•x3=x4【分析】直接利用同底数幂的乘除运算法则分别化简得出答案.【解答】解:A、x2•x3=x5 ,正确,不合题意;B、x3•x3=x6,原式计算错误,符合题意;C、(﹣x)4•(﹣x)4=x8,正确,不合题意;D、x•x3=x4,正确,不合题意.故选:B.【点评】此题主要考查了同底数幂的乘除运算,正确掌握相关运算法则是解题关键.3.(3分)下列说法正确的是()A.1的平方根是1B.﹣49的平方根是±7C.的平方根是﹣2D.4是(﹣4)2的算术平方根【分析】根据平方根、算术平方根的性质和应用,逐项判定即可.【解答】解:∵1的平方根是±1,∴选项A不符合题意;∵﹣49<0,﹣49没有平方根,∴选项B不符合题意;∵的平方根是±2,∴选项C不符合题意;∵4是(﹣4)2的算术平方根,∴选项D符合题意.故选:D.【点评】此题主要考查了平方根、算术平方根的性质和应用,要熟练掌握,解答此题的关键是要明确:一个正数有两个平方根,这两个平方根互为相反数,零的平方根是零,负数没有平方根.4.(3分)已知x<y,则下列不等式一定成立的是()A.﹣x>﹣y B.1+x>1+y C.D.3x﹣3y>0【分析】直接根据不等式的性质判断即可.【解答】解:A、∵x<y,∴﹣x>﹣y,故本选项符合题意;B、∵x<y,∴1+x<1+y,故本选项不符合题意;C、∵x<y,∴,故本选项不符合题意;D、∵x<y,∴﹣3x﹣3y<0,故本选项不符合题意;故选:A.【点评】本题主要考查不等式的性质:(1)不等式两边加(或减)同一个数(或式子),不等号的方向不变;(2)不等式两边乘(或除以)同一个正数,不等号的方向不变;(3)不等式两边乘(或除以)同一个负数,不等号的方向改变.5.(3分)﹣8的立方根是()A.2B.﹣2C.±2D.﹣【分析】直接利用立方根的定义分析求出答案.【解答】解:﹣8的立方根是:=﹣2.故选:B.【点评】此题主要考查了立方根,正确把握立方根的定义是解题关键.6.(3分)3﹣2可表示为()A.2B.﹣2C.D.【分析】直接利用负指数幂的性质计算得出答案.【解答】解:3﹣2==.故选:C.【点评】此题主要考查了负指数幂的性质,正确把握负指数幂的性质是解题关键.7.(3分)下列各组数中,互为相反数的是()A.﹣2与﹣1B.﹣2与C.|﹣3|与3D.﹣3与【分析】利用相反数的定义判断即可.【解答】解:﹣3和=|﹣3|=3,互为相反数,故选:D.【点评】此题考查了实数的性质,相反数,绝对值,以及立方根,熟练掌握相反数的定义是解本题的关键.8.(3分)一个长方形的长、宽分别是2x﹣3、x,则这个长方形的面积为()A.2x﹣3B.2x2﹣3C.2x2﹣3x D.3x﹣3【分析】根据长方形的面积公式即可求出答案.【解答】解:这个长方形的面积为:x(2x﹣3)=2x2﹣3x,故选:C.【点评】本题考查整式的运算,解题的关键是熟练运用整式的运算,本题属于基础题型.9.(3分)不等式3x﹣1<x+3的解集在数轴上表示正确的是()A.B.C.D.【分析】先求出不等式的解集,再在数轴上表示出来即可.【解答】解:解不等式3x﹣1<x+3得,x<2,在数轴上表示为:.故选:D.【点评】本题考查的是在数轴上表示不等式的解集,熟知实心原点与空心原点的区别是解答此题的关键.10.(3分)﹣27的立方根与的平方根之和为()A.0B.6C.0或﹣6D.﹣12或6【分析】求出﹣27的立方根与的平方根,相加即可得到结果.【解答】解:∵﹣27的立方根为﹣3,的平方根±3,∴﹣27的立方根与的平方根之和为0或﹣6.故选:C.【点评】此题考查了实数的运算,涉及的知识有:平方根、立方根的定义,熟练掌握定义是解本题的关键.11.(3分)已知a+b=3,ab=2,则a2+b2的值为()A.3B.4C.5D.6【分析】根据完全平方公式得出a2+b2=(a+b)2﹣2ab,代入求出即可.【解答】解:∵a+b=3,ab=2,∴a2+b2=(a+b)2﹣2ab=32﹣2×2=5,故选:C.【点评】本题考查了完全平方公式的应用,注意:a2+b2=(a+b)2﹣2ab.12.(3分)若不等式组无解,那么m的取值范围是()A.m≤2B.m≥2C.m<2D.m>2【分析】先求出每个不等式的解集,再根据不等式组解集的求法和不等式组无解的条件,即可得到m的取值范围.【解答】解:由①得,x<m,由②得,x>2,又因为不等式组无解,所以m≤2.故选:A.【点评】此题的实质是考查不等式组的求法,求不等式组的解集,要根据以下原则:同大取较大,同小较小,小大大小中间找,大大小小解不了.二、填空题:(每小题3分,共18分,请将答案直接写在题中的横线上.)13.(3分)9的平方根是±3.【分析】直接利用平方根的定义计算即可.【解答】解:∵±3的平方是9,∴9的平方根是±3.故答案为:±3.【点评】此题主要考查了平方根的定义,要注意:一个非负数的平方根有两个,互为相反数,正值为算术平方根.14.(3分)据统计,2017年全国普通高考报考人数约为9400000人,数据9400000用科学记数法表示为9.4×106.【分析】科学记数法的表示形式为a×10n的形式,其中1≤|a|<10,n为整数.确定n 的值时,要看把原数变成a时,小数点移动了多少位,n的绝对值与小数点移动的位数相同.当原数绝对值>1时,n是正数;当原数的绝对值<1时,n是负数.【解答】解:9400000=9.4×106,故答案为:9.4×106.【点评】此题考查科学记数法的表示方法.科学记数法的表示形式为a×10n的形式,其中1≤|a|<10,n为整数,表示时关键要正确确定a的值以及n的值.15.(3分)若>5是关于x的一元一次不等式,则m=0.【分析】运用一元一次不等式的定义直接可得.【解答】解:∵>5是关于x的一元一次不等式,∴2m+1=1∴m=0故答案为:0【点评】本题考查了一元一次不等式的定义,熟练运用不等式的定义解决问题是本题的关键.16.(3分)计算:﹣|﹣2|=0.【分析】直接利用立方根的性质以及绝对值的性质化简得出答案.【解答】解:原式=2﹣2=0.故答案为:0.【点评】此题主要考查了实数运算,正确化简各数是解题关键.17.(3分)不等式组的最大整数解为x=5.【分析】分别求出两个不等式的解集,可得不等式组的解集,即可求最大整数解.【解答】解:解x+1≥﹣3,解得:x≥﹣8,解x﹣2(x﹣3)>0,解得:x<6,∴不等式的解集为:﹣8<x<6∴最大整数解为:x=5故答案为:x=5,【点评】本题考查了一元一次不等式组的整数解,解答本题的关键是掌握一元一次不等式组的解法.18.(3分)对实数a、b,定义运算☆如下:a☆b.例如2☆3=2﹣3=.计算[2☆(﹣4)]×[(﹣3)☆(﹣2)]=.【分析】根据负整数指数幂a﹣p=计算即可.【解答】解:[2☆(﹣4)]×[(﹣3)☆(﹣2)]=2﹣4×(﹣3)2=×9=【点评】本题考查了实数的运算,熟练运用负指数幂运算是解题的关键.三、解答题:(本大题共8小题,共计66分.)19.(6分)计算:(π﹣3.14)0+++|﹣3|.【分析】直接利用负指数幂的性质以及立方根的性质和绝对值的性质分别化简得出答案.【解答】解:原式=1﹣3+4+3=5.【点评】此题主要考查了实数运算,正确化简各数是解题关键.20.(6分)解不等式:【分析】去分母,去括号,移项,合并同类项,系数化成1即可.【解答】解:去分母得:2x﹣3≥3x+15,2x﹣3x≥15+3,﹣x≥18,x≤﹣18.【点评】本题考查了解一元一次不等式,能正确根据不等式的性质进行变形是解此题的关键.21.(8分)先化简,再求值:a2•a4﹣a8÷a2+(﹣a3)2÷(a6﹣2)0,其中a=﹣1.【分析】原式利用同底数幂的乘除法则,以及积的乘方与幂的乘方运算法则计算,合并得到最简结果,把a的值代入计算即可求出值.【解答】解:原式=a6﹣a6+a6=a6,当a=﹣1时,原式=1.【点评】此题考查了整式的混合运算﹣化简求值,熟练掌握运算法则是解本题的关键.22.(8分)解不等式组:,并把解集在数轴上表示出来.【分析】分别解两个不等式,然后根据公共部分找确定不等式组的解集,再利用数轴表示解集;【解答】解:解不等式①,得x<﹣3;解不等式②,得x≥﹣4;原不等式组的解集为﹣4≤x<﹣3,不等式组的解集在数轴上表示出来为:.【点评】本题考查了解一元一次不等式组:一般先求出其中各不等式的解集,再求出这些解集的公共部分,利用数轴可以直观地表示不等式组的解集.解集的规律:同大取大;同小取小;大小小大中间找;大大小小找不到.23.(8分)先阅读下面的内容,再解决问题:例题:若a2﹣2ab+2b2+6b+9=0,求a、b的值.解:因为a2﹣2ab+2b2+6b+9=0所以a2﹣2ab+b2+b2+6b+9=0所以(a﹣b2)+(b+3)2=0所以a﹣b=0,b+3=0所以a=﹣3.b=﹣3根据以上例题解决以下问题,若x2+2y2+2xy﹣4y+4=0,求x y的值.【分析】已知等式变形后,利用完全平方公式变形,利用非负数的性质求出x与y的值,即可求出x y的值.【解答】解:∵x2+2y2+2xy﹣4y+4=0,∴(x+2)2+(y﹣2)2=0∴x=﹣2,y=2,∴x y=(﹣2)2=4.【点评】此题考查了配方法的应用,以及非负数的性质,熟练掌握完全平方公式是解本题的关键.24.(8分)化简求值:,其中x=﹣1,y=1.【分析】根据积的乘方、同底数幂的乘除法可以化简题目中的式子,然后将x、y的值代入化简后的式子即可解答本题.【解答】解:=[(﹣)+]=(﹣+)=x6y6﹣,当x=﹣1,y=1时,原式=(﹣1)6×16﹣=1﹣=.【点评】本题考查整式的混合运算﹣化简求值,解答本题的关键是明确整式化简求值的方法.25.(10分)已知a、b为实数,且满足关系式|a﹣2b|+(3a﹣b﹣10)2=0.求:(1)a、b的值;(2)求+12的值.【分析】(1)利用非负数的性质列出方程组,求出方程组的解即可得到a,b的值;(2)把a与b的值代入原式计算即可求出值.【解答】解:(1)∵|a﹣2b|+(3a﹣b﹣10)2=0,∴,解得:,则a,b的值分别为4,2;(2)当a=4,b=2时,原式=6﹣2+12=16.【点评】此题考查了解二元一次方程组,以及非负数的性质,熟练掌握运算法则是解本题的关键.26.(12分)“全民阅读”深入人心,好读书,读好书,让人终身受益.为满足同学们的读书需求,学校图书馆准备到新华书店采购文学名著和动漫书两类图书.经了解,20本文学名著和40本动漫书共需1520元,20本文学名著比20本动漫书多440元(注:所采购的文学名著价格都一样,所采购的动漫书价格都一样).(1)求每本文学名著和动漫书各多少元?(2)若学校要求购买动漫书比文学名著多20本,动漫书和文学名著总数不低于72本,总费用不超过2000元,请求出所有符合条件的购书方案.【分析】(1)设每本文学名著x元,动漫书y元,根据题意列出方程组解答即可;(2)根据学校要求购买动漫书比文学名著多20本,动漫书和文学名著总数不低于72本,总费用不超过2000元,列出不等式组,解答即可.【解答】解:(1)设每本文学名著x元,动漫书y元,可得:,解得:,答:每本文学名著和动漫书各为40元和18元;(2)设学校要求购买文学名著a本,动漫书为(a+20)本,根据题意可得:,解得:,因为取整数,所以x取26,27,28;方案一:文学名著26本,动漫书46本;方案二:文学名著27本,动漫书47本;方案三:文学名著28本,动漫书48本.【点评】此题主要考查了二元一次方程组的应用,不等式组的应用,关键是弄清题意,找出题目中的等量关系与不等关系,列出方程组与不等式组.七年级(下)数学期中考试试题(含答案)一.选择题(本大题共10个小题,每小题2分,共20分.在每小题给出的四个选项中,只有一项是符合题目要求的,请将符合要求的答案的序号填入下面表格内)1.(2分)点(,﹣5)所在的象限是()A.第一象限B.第二象限C.第三象限D.第四象限2.(2分)实数﹣3,,,,π,0中,无理数有()A.2个B.3个C.4个D.5个3.(2分)下列各式中,有意义的是()A.B.C.D.4.(2分)下列各式正确的是()A.=±4B.=C.﹣|﹣|=0D.+=5.(2分)观察下面图案,在A、B、C、D四幅图案中,能通过图案(1)的平移得到的是()A.B.C.D.6.(2分)在平面坐标系内,点A位于第二象限,距离x轴2个单位长度,距离y轴3个单位长度,则点A的坐标为()A.(2,3)B.(3,﹣2)C.(﹣2,﹣3)D.(﹣3,2)7.(2分)将一直角三角板与两边平行的纸条如图放置,下列结论:(1)∠1=∠2;(2)∠3=∠4;(3)∠4=∠5;(4)∠4+∠5=180°其中正确的个数是()A.1B.2C.3D.48.(2分)下列命题中,真命题是()A.的平方根是±9B.0没有平方根C.无限小数都是无理数D.垂线段最短9.(2分)点P是直线1外一点,A、B、C为直线l上的三点,PA=6cm,PB=5cm,PC =4cm,点P到直线l的距离为dcm,则()A.0<d≤4B.d=4C.0≤d≤4D.d≥410.(2分)如图,两个相同的四边形重叠在一起,将其中一个四边形沿DA方向平移AE 长,则下列关于阴影部分面积的说法正确的是()A .S 阴影=S 四边形EHGFB .S 阴影=S 四边形DHGKC .S 阴影=S 四边形EDKFD .S 阴影=S 四边形EDKF ﹣S 四边形DHGK二、填空题(本大题共8个小题,每小题2分,共16分,把答案写在题中横线上) 11.(2分)2﹣的相反数是 .12.(2分)点A (3,4)向左平移3个单位后,再向下平移2个单位,对应点A 1坐标为 . 13.(2分)比较2,3,的大小 (用“<”连接).14.(2分)把命题“相等的角是对顶角”改写成“如果…,那么…”的形式是 . 15.(2分)﹣27的立方根是 .16.(2分)如图所示,直线AB ∥CD ,∠A =23°,则∠C = .17.(2分)已知(x ﹣1)3=﹣8,y 2﹣1=0,则x +y = .18.(2分)如图,点A (0,0),向右平移1个单位,再向上平移2个单位,得到点A 1;点A 1向右平移2个单位,再向上平移4个单位,得到点A 2;点A 2向右平移4个单位,再向上平移8个单位,得到点A 3;……;按这个规律平移得到点A n ,则点A n 的坐标为 .三、解答题(本大题共8个小题,共64分,解答应写出文字说明、证明过程或演算步骤)19.(7分)计算:(1)﹣|1﹣|(2)()2+.20.(7分)如图,若每个小格的边长均为1,按要求解答:(1)建立适当的平面直角坐标系,写出点A、B、C、D、E的坐标.(2)三角形ACD的面积为.21.(7分)在下列括号内,填上推理的根据.已知:如图,∠1=110°,∠2=70°,求证:a∥b.解:∵∠1=110°(),∠3=∠1(),∴∠3=110°(),又∵(已知)∴∠2+∠3=180°∴a∥b().22.(7分)我们知道,一个正数有两个平方根,它们的关系是互为相反数,请用这个结论解答下题:已知:3x+2与2x﹣7是正数a的平方根,试求x和a的值.23.(8分)如图,已知△ABC,按要求画图;(1)把三角形ABC向右平移8个小格,得到三角形A1B1C1,画出三角形A1B1C1.(2)把三角形A1B1C1向下平移4个小格,得到三角形A2B2C2,画出三角形A2B2C2.(3)若在同一个平面直角坐标系中,点A(﹣5,2),则点B坐标为();点C2坐标为().24.(8分)已知:如图,AB∥CD,DB⊥BC,∠1=40°.求∠2的度数.25.(10分)在《5.3.1平行线的性质》一节,我们用测量的方法得出了“两直线平行,同位角相等”这一性质,但事实上,它可以用我们学过的基本事实来证明,阅读下列证明过程并把它补充完整:(1)若利用基本事实,证明“两直线平行,同位角相等.”如图1,已知直线a∥b,直线AB分别与a、b交于点P、Q求证:∠1=∠2证明:假设∠1≠∠2,则可以过点P作∠APC=∠2,∴PC∥b()又a∥b,且直线a经过点P,∴过点P存在两条直线a、PC与直线b平行,这与基本事实()矛盾,∴假设不成立,∴∠1=∠2(2)利用(1)的结论,证明“两直线平行,同旁内角互补.”要求画图,写出已知、求证、证明.已知:如图2,直线a、b被直线AB所截,分别交于点P、Q,且a∥b.求证:.证明:.26.(10分)认真研究下列探究过程,并将它补充完整:探究:已知直线l1∥l2直线l3和直线l1、l2交于点C和D,直线l3上有一点P.(1)若点P在C、D之间运动时,如图(1),问∠PAC,∠APB,∠PBD之间有什么关系?是否随点P的运动发生变化?并说明理由.解:∠APB=∠PAC+∠PBD,不发生变化.理由如下:作PE∥l1,又∵l1∥l2∴PE∥l2()∴∠PAC=∠APE,∠PBD=∠BPE,()又∵∠APB=∠APE+∠BPE∴∠APB=∠PAC+∠PBD().(2)若点P在l1上方运动时如图(2),试探索∠PAC,∠APB,∠PBD之间的关系,并说明理由.2017-2018学年辽宁省葫芦岛市建昌县七年级(下)期中数学试卷参考答案与试题解析一.选择题(本大题共10个小题,每小题2分,共20分.在每小题给出的四个选项中,只有一项是符合题目要求的,请将符合要求的答案的序号填入下面表格内)1.(2分)点(,﹣5)所在的象限是()A.第一象限B.第二象限C.第三象限D.第四象限【分析】根据各象限内点的坐标特征解答即可.【解答】解:点(﹣,﹣5)所在的象限是第三象限.故选:C.【点评】本题考查了各象限内点的坐标的符号特征,记住各象限内点的坐标的符号是解决的关键,四个象限的符号特点分别是:第一象限(+,+);第二象限(﹣,+);第三象限(﹣,﹣);第四象限(+,﹣).2.(2分)实数﹣3,,,,π,0中,无理数有()A.2个B.3个C.4个D.5个【分析】利用无理数的定义判断即可.【解答】解:实数﹣3,,,,π,0中,无理数有,π,共2个,故选:A.【点评】此题考查了无理数,以及算术平方根,熟练掌握各自的定义是解本题的关键.3.(2分)下列各式中,有意义的是()A.B.C.D.【分析】直接利用二次根式有意义的条件分析得出答案.【解答】解:A、,C、,D、,根号下不能是负数,故此选项错误;只有B选项,三次根号下可以为负数,故此选项正确.故选:B.【点评】此题主要考查了二次根式有意义的条件,正确把握二次根式的定义是解题关键.4.(2分)下列各式正确的是()A.=±4B.=C.﹣|﹣|=0D.+=【分析】直接利用算术平方根以及立方根的性质分别化简得出答案.【解答】解:A、=4,故此选项错误;B、=,故此选项错误;C、﹣|﹣|=0,正确;D、+无法计算,故此选项错误.故选:C.【点评】此题主要考查了实数运算,正确化简各数是解题关键.5.(2分)观察下面图案,在A、B、C、D四幅图案中,能通过图案(1)的平移得到的是()A.B.C.D.【分析】平移前后形状与大小没有改变,并且对应点的连线平行且相等的图形即可.【解答】解:A、对应点的连线相交,不能通过平移得到,不符合题意;B、对应点的连线相交,不能通过平移得到,不符合题意;C、可通过平移得到,符合题意;D、对应点的连线相交,不能通过平移得到,不符合题意;故选:C.【点评】本题考查平移变换,解题的关键是熟练掌握平移变换的性质,属于中考常考题型.6.(2分)在平面坐标系内,点A位于第二象限,距离x轴2个单位长度,距离y轴3个单位长度,则点A的坐标为()A.(2,3)B.(3,﹣2)C.(﹣2,﹣3)D.(﹣3,2)【分析】根据第二象限内点的横坐标是负数,纵坐标是正数,点到x轴的距离等于纵坐标的长度,到y轴的距离等于横坐标的长度求出点A的横坐标与纵坐标,然后写出即可.【解答】解:∵点A位于第二象限,距离x轴2个单位长度,距离y轴3个单位长度,∴点A的横坐标为﹣3,纵坐标为2,∴点A的坐标为(﹣3,2).故选:D.【点评】本题考查了点的坐标,熟记点到x轴的距离等于纵坐标的长度,到y轴的距离等于横坐标的长度是解题的关键.7.(2分)将一直角三角板与两边平行的纸条如图放置,下列结论:(1)∠1=∠2;(2)∠3=∠4;(3)∠4=∠5;(4)∠4+∠5=180°其中正确的个数是()A.1B.2C.3D.4【分析】利用平行线的性质可求解.【解答】解:∵将一直角三角板与两边平行的纸条如图放置∴∠1=∠2,∠3=∠4,∠4+∠5=180°∴正确的结论有3个,故选:C.【点评】本题考查了平行线的性质,熟练运用平行线的性质是本题的关键.8.(2分)下列命题中,真命题是()A.的平方根是±9B.0没有平方根C.无限小数都是无理数D.垂线段最短【分析】利用算术平方根的定义、无理数的定义及垂线段的性质分别判断后即可求解.【解答】解:A、的平方根是±3,故错误,是假命题;B、0的平方根是0,故错误,是假命题;C、无限不循环小数是无理数,故错误,是假命题;D、垂线段最短,正确,是真命题,故选:D.【点评】本题考查了命题与定理的知识,解题的关键是了解算术平方根的定义、无理数的定义及垂线段的性质,难度不大.9.(2分)点P是直线1外一点,A、B、C为直线l上的三点,PA=6cm,PB=5cm,PC =4cm,点P到直线l的距离为dcm,则()A .0<d ≤4B .d =4C .0≤d ≤4D .d ≥4【分析】根据“直线外一点到直线上各点的所有线中,垂线段最短”进行解答.【解答】解:∵直线外一点与直线上各点连接的所有线段中,垂线段最短,∴点P 到直线l 的距离≤PC ,即点P 到直线l 的距离不大于4.故选:A .【点评】本题考查的是点到直线的距离,熟知直线外一点到直线的垂线段的长度,叫做点到直线的距离是解答此题的关键10.(2分)如图,两个相同的四边形重叠在一起,将其中一个四边形沿DA 方向平移AE 长,则下列关于阴影部分面积的说法正确的是( )A .S 阴影=S 四边形EHGFB .S 阴影=S 四边形DHGKC .S 阴影=S 四边形EDKFD .S 阴影=S 四边形EDKF ﹣S 四边形DHGK【分析】根据平移的性质可知,平移后图形的面积不变即可得到答案.【解答】解:∵两个相同的四边形重叠在一起,将其中一个四边形沿DA 方向平移AE 长, ∴阴影的面积+梯形EIKD 的面积=梯形EIKD 的面积+梯形DKGH 的面积,∴S 阴影=S 四边形DHGK ,故选:B .【点评】本题考查了平移的性质,是基础题,熟记平移的性质是解题的关键.二、填空题(本大题共8个小题,每小题2分,共16分,把答案写在题中横线上)11.(2分)2﹣的相反数是﹣2.【分析】由于相反数只在原数前添上“﹣”可变为原数的相反数,由此即可求解.【解答】解:∵﹣(2﹣)=﹣2,根据相反数的定义,2﹣的相反数是﹣2.【点评】此题考查相反数的性质及其定义,并能熟练运用到解题中.12.(2分)点A(3,4)向左平移3个单位后,再向下平移2个单位,对应点A1坐标为(0,2).【分析】利用点平移的坐标变换规律求解.【解答】解:点A(3,4)向左平移3个单位后,再向下平移2个单位,对应点A1坐标为(0,2).故答案为(0,2).【点评】本题考查了坐标与图形变化﹣平移:在平面直角坐标系内,把一个图形各个点的横坐标都加上(或减去)一个整数a,相应的新图形就是把原图形向右(或向左)平移a个单位长度;如果把它各个点的纵坐标都加(或减去)一个整数a,相应的新图形就是把原图形向上(或向下)平移a个单位长度.13.(2分)比较2,3,的大小2<<3(用“<”连接).【分析】首先求出2,3,的平方的大小;然后根据实数大小比较的方法,比较出它们的平方的大小,即可判断出它们的大小关系.【解答】解:22=4,32=9,=8,∵4<8<9,∴2<<3.故答案为:2<<3.【点评】此题主要考查了实数大小比较的方法,以及算术平方根的含义和求法,要熟练掌握,解答此题的关键是要明确:正实数>0>负实数,两个负实数绝对值大的反而小,两个正实数,平方大的这个数也越大.14.(2分)把命题“相等的角是对顶角”改写成“如果…,那么…”的形式是如果两个角相等,那么它们是对顶角.【分析】对顶角相等的条件是两个角是对顶角,结论是两角相等,据此即可改写成“如果…,那么…”的形式.【解答】解:∵原命题的条件是:“相等的角”,结论是:“这两个角是对顶角”,∴命题“相等的角是对顶角”写成“如果,那么”的形式为:“如果两个角相等,那么两个角是对顶角”故答案为:如果两个角相等,那么两个角是对顶角.【点评】本题考查了确定一个命题的条件与结论的方法是首先把这个命题写成:“如果…,那么…”的形式,难度适中.15.(2分)﹣27的立方根是﹣3.【分析】根据立方根的定义求解即可.【解答】解:∵(﹣3)3=﹣27,∴=﹣3故答案为:﹣3.【点评】此题主要考查了立方根的定义,求一个数的立方根,应先找出所要求的这个数是哪一个数的立方.由开立方和立方是互逆运算,用立方的方法求这个数的立方根.注意一个数的立方根与原数的性质符号相同.16.(2分)如图所示,直线AB∥CD,∠A=23°,则∠C=23°.【分析】由平行线的性质可解.【解答】解:∵AB∥CD∴∠C=∠A=23°故答案为:23°【点评】本题考查了平行线的性质,熟练运用平行线的性质是本题的关键.17.(2分)已知(x﹣1)3=﹣8,y2﹣1=0,则x+y=0或﹣2.【分析】利用平方根、立方根的定义求出x与y的值,代入原式计算即可求出值.【解答】解:∵(x﹣1)3=﹣8,y2﹣1=0,∴x=﹣1,y=1或x=﹣1,y=﹣1,则x+y=0或﹣2,故答案为:0或﹣2。
天津市耀华嘉诚国际中学2019—2020 学年度第二学期线上学习阶段性评估检测七年级英语试卷第Ⅰ卷(客观题,请将答案填涂在答题卡上)一、选择题(每小题1 分,共20 分)1.—What do you usually have for breakfast? —A piece of bread and egg.A.a; anB. 不填; theC. a; theD. 不填; an2.Jenny can play piano, but she can’t play table tennis.A.the; theB. the; 不填C. 不填; theD. 不填; 不填3.I’m going to send it to Lily post.A.onB. inC. byD. with4.There’s a bridge the river.A.onB. acrossC. overD. through5.—Can a plane fly the Atlantic Ocean? —Yes, but it needs to go the clouds for hours.A.across; throughB. through; acrossC. through; throughD. across; across6.Turn left the second street the left.A.on; atB. at; onC. in; atD. to; on7.Please choose me your partner.A.withB. asC. toD. from8.There are many trees on sides of the river.A.eachB. everyC. bothD. all9. —is it from the ground to the top of the building? —About two hundred meters.A. How farB. How longC. How highD. How tall10. —is it from our school to the airport? —About half an hour’s walk.A. How longB. How farC. How much timeD. How soon11.The boy was taller than Tina. He was sitting Tina. So Tina see the blackboard at all.A.behind; couldn’tB. behind; couldC. in front of; couldn'tD. in the front of; could12.Tony’ s parents a film tomorrow evening.A.are seeingB. are going to seeC. seeD. is going to see13.I’m going to there.A.flyingB. fly toC. take a planeD. walk to14.The journey will me about two weeks and it will me plenty of money as well.A.spend; takeB. take; costC. pay; takeD. cost; take15.You’d better not the bus at next stop.A.get offB. to get offC. get outD. to get out16.There are three fans at the airport. They are waiting for the famous actor.A.thousandB. thousandsC. thousands ofD. thousand of17.The presents make him excited.A.to feelB. feelC. feelsD. feeling18.The factory makes noise. It is noisy.A.too much; too muchB. too much; much tooC. too many; much tooD. much too; much too19.It took me two weeks the novels written by Mark Twain.A.finish to readB. finishes readingC. to finish readingD. finishing to read20.Which of the following is not in London?A.River ThamesB. Tower BridgeC. River NileD. Big Ben二﹑完形填空(每小题1 分,共10 分)A science teacher wants to show some idea to his students. He takes a large-mouth bottle and 21 several large stones in it. He then asks the class, "Is the bottle full now?" They all reply, "Yes!"The teacher then takes some small rocks and puts them into the 22 .The small rocks go into the 23 between the big rocks. He then asks, "Is it full?" This time some students give no answer, but most reply, "Yes!"The teacher then starts to drop some sand into the bottle. The sand 24 the spacesbetween the small rocks. For the 25 time, the teacher asks, "Is it full?" Now most are doubting, but still, some reply, "Yes!"Then the teacher brings out a cup of water into the bottle. "What's the 26 of this show?" asks the teacher. One 27 student answers, "No matter how 28 you are, you can always find time to do some more things.""No," says the teacher, "the point is that 29 you don't place the big rocks first, you'll never get them in. The big rocks are the 30 things in your life. If you fill your life with small things —as shown by the small rocks, the sand and the water —you'll never have the time for the important things."21. A. touches B. places C. pushes D. hits22. A. mouth B. cup C. bottle D. bowl23. A. spaces B. rooms C. fields D. edges24. A. puts up B. turns up C. sets up D. fills up25. A. first B. second C. third D. fourth26. A. point B. method C. progress D. rule27. A. angry B. funny C. clever D. crazy28. A. busy B. rich C. great D. popular29.A. when30.A. pleasant B. untilB. importantC. unlessC. friendlyD. ifD. interesting三﹑阅读理解(每小题2 分,共30 分)读故事,判断正(A)误(B)(A)A man saw a boy standing beside a lake with a mirror. “Excuse me,” he said, “but could you tell me what you’re doing?”“I’m fishing.”“With a mirror? Could you tell me how it works? ” the man asked.“OK, but I want five dollars.”The man wanted to know the secret very much, so he handed the boy the money. “Now show me how it works,”he said. “Well,”the boy began, “you hold the mirror towards the water, and then a fish goes by, the sunlight in the mirror gives him a surprise. He stops and doesn’t know what to do, and then you catch him at once.”The man was surprised, “Can you really catch fish with the mirror? How many did you catch? ”“You are the fifth today!” replied that boy.31.The man wanted to look at the boy’s mirror.32.The man gave the boy five dollars.33.The boy caught five fish that day.34.The boy got at least twenty-five dollars that day.35.When the man heard the boy’s words, he would be very happy.(B)Mr Zhang 正在国外旅游, 这是他所入住宾馆的房卡。
天津耀华嘉诚国际中学英语新初一分班试卷一、单项选择1.Jackie Chan is my _____ film star. ( )A.like B.best C.favourite D.good2.You can use a pencil _____ pictures. ( )A.to draw B.draw C.draws3.My aunt is a ________. She likes ________. ( )A.cooker; cook B.cooker; cooking C.cook; cooking4.From then on, John and David ________ good friends. ( )A.become B.became C.becomes5.You can find many ______ in Aesop's Fables. ( )A.Chinese stories B.toy stories C.animal stories6.Every morning, the short man does sport first, then he goes to work. (选出画线单词的读音不同的一项。
) ( )A.short B.sport C.work7.I usually _________ up at seven o'clock. But this morning I _________ up at five o'clock. ( ) A.got; get B.get; get C.get; got8.I to school when I six .A.come, was B.came, is C.came, was9.Don’t ________ sad. ( )A.are B.be C.is10.I _____ a book last weekend. ( )A.buy B.buys C.bought11.My brother is 1.58m. I am 1.55m. I am ______ than him. ( )A.younger B.shorter C.taller12.当你的朋友说“How are you?”,你可以说:( )A.I’m fine. Thank you.B.I’m sorry to hear that.C.How do you do?13.He waits for the ______ man before he ________ the road.A.red, crosses B.green, crosses C.green, cross14.That's funny, Mike! You're _______ a pink T-shirt. ( )A.wear B.wears C.wearing15.She got up late and _________ to school. ( )A.run B.runs C.ran16.He usually ______ camping on the weekend. But last weekend he ______ at home. ( ) A.go; stay B.goes; stays C.goes; stayed17.—______ you go to the supermarket yesterday? ( )—No, I read books in the library.A.Did B.Do C.Does18.— are they? ( )—They’re under the chair.A.Where B.What C.Who19.I went _________ a holiday. ( )A.to B.on C.with20.______ is thinner, Amy or Sarah? ( )A.What B.Who C.Why二、用单词的适当形式填空21.I am _________ (dance) now.22.—_________ (do) you help them clean their room?—Yes, I did.23.There ________ (be) a lot of computer rooms in my old school.24.Which season do you like ____________ (well), spring or summer?25.Did you _____ (play) football with Zhang Peng last weekend?26.We ____ (go) to the park last Sunday.27.We are very happy on _________ (children) Day.28.I will take you to your home ______ (safe).29.Let’s finish _________ (they) _________ (quick).30.The _______ (student) dreams are all wonderful!三、完成句子31.The sun is s________ and the wind is blowing.32.Helen _______ (需要) a few eggs for breakfast.33.It’s _________ (困难的) for me.34.The leaves change colours and the weather becomes cooler. Farmers are very busy. It’sa______.35.There is a _____ (体育馆) at school.36.There are many robots in the science .37.Wang Yaping gave her daughter a g_____ when she came back to the earth. That was a star. 38.—What do you often do on the weekend?—I often read books and _________ _________ (画漫画).39.Look! That’s the t_____ dinosaur in this hall.40.Chen Jie ______ (打扫) her room last night.四、完形填空41.Tom is an __41___ boy. He’s twelve __42___. He’s two years __43___ than his brother, Jim. Tom is 150 cm and Jim is 160 cm. Jim is 50 kilos and Tom is 60 kilos. Tom wants _44__ lose someweight(减肥), so he tries not to eat too much food. He also _45__ more exercise than before. Every morning he _46__ earlier than Jim and he goes jogging for thirty minutes. He usually goes skating after school. After dinner, Tom often _47__, and Jim likes _48__ at home. Now Tom is much stronger than Jim. Jim thinks he needs more _49__now. He and Tom will do exercise__50___.41、A.Japanese B.England C.American42、A.year old B.years old C.years older43、A.old B.young C.younger44、A.to B.for C.with45、A.did B.does C.do46、A.goes to bed B.goes to school C.gets up47、A.goes to bed B.eats lots of food C.goes for a walk48、A.skiing B.swimming C.watching TV49、A.homework B.exercise C.rest50、A.together B.too C.also五、阅读判断42.阅读理解,判断正(T)误(F)Chinese New YearThe Chinese New Year is a very important holiday for the Chinese people. It falls on a different date each year and lasts 15 days. Days before the New Year, every family is busy giving its house a thorough cleaning. They decorate the doors and windows with paper-cuts and put lanterns around their houses. On the Eve, all the family members come together to have a big dinner. It is a feast. After dinner, it is time for the whole family to sit up for the night. They play card games or watch TV programs. Next morning, people all dress in their best clothes. Children greet their parents or grandparents and get their gifts of money in red envelops. Then the family start out to say greetings from door to door.51、The Chinese New Year is very important for the Chinese people. ( )52、The Chinese New Year falls on the same date each year. ( )53、The Chinese people give their houses a thorough cleaning on the Eve. ( )54、The Chinese people usually have their best clothes on during the Chinese New Year. ( )55、Children usually get gifts from their parents or grandparents. ( )六、阅读理解43.Mr. Jackson is a farmer and he lives in a small village. It was the last day of June. He drove to the town to buy some new clothes for his wife and his children. He got there after twenty minutes. It was Sunday, and the street was full of people. He couldn't find a place to park (停放) his car. At last he noticed there was no car in front of a building(建筑). He parked it there at once and went shopping.Two hours later the farmer went back to his car with many things in his hands. To his surprise, hesaw a policeman standing by his car. "Do you know you can’t park here, sir?"Asked the policeman.“I’m sorry I don’t.” Answered Mr. Jackson. “Look at the sign(标志) please.” The policeman said seriously (认真地). “I did. Doesn't it say Fine for parking? So I parked it here” said Mr. Jackson. 56、Mr. Jackson went shopping ________. ( )A.on June 30th B.on June 31st C.in June 30th D.in June 31st57、Mr. Jackson parked his car ________. ( )A.at a parking lot B.next to a restaurant C.behind a house D.in front of a building58、Two hours later ________ was beside Mr, Jackson's. ( )A.a shop assistant B.his wife C.a policeman D.a policewoman59、Which of the following is true according to the passage? ( )A.That was a place for parking. B.Mr. Jackson didn’t see the sign.C.Mr. Jackson may park his car there. D.Mr. Jackson couldn't park his car there.60、The underline word “fine” in the p assage means ________. ( )A.璃朗B.罚款C.合适D.好的44.Uncle Wang works in a book shop in the middle of the city. The shop is not far from his home. It is about one kilometer (公里) away. So Uncle Wang seldom (极少) goes to work by bus. He usually goes there by bike, sometimes on foot. It takes him twenty minutes to get there by bike and forty minutes on foot. His work starts at half past eight in the morning and finishes at a quarter to five in the afternoon.One day, his bike was broken (坏了). He wanted to walk there. He left (离开) home at ten to eight. Was he late for work at last?56、Where does Uncle Wang work? ( )A.A toy shop B.A book shop C.A supermarket D.A factory57、How does Uncle Wang usually go to work? ( )A.By bus B.On foot C.By metro D.By bike58、How long does it take Uncle Wang to get to work on foot? ( )A.Forty minutes B.Fifteen minutes C.Twenty minutes D.Thirty minutes 59、Was he late for work at last? ( )A.Yes, he was. B.No, he wasn’t.C.No, he was. D.I don’t know.60、His bike was broken one day. Where was he at 17:10? Guess! ( )A.At home B.In the shop C.On the road D.I don’t know.【参考答案】一、单项选择1.C解析:C【详解】略2.A解析:A【详解】句意:你可以用铅笔_____画。
天津市耀华嘉诚国际中学 2019—2020 学年度第二学期线上学习阶段性评估检测七年级语文试卷本试卷分为第Ⅰ卷、第Ⅱ卷两部分。
试卷满分100 分。
考试时间60 分钟。
答卷前,检查自己的设备,将自己的姓名、考号准确填写。
答题时,将答案写在答题纸上,检测结束后,将本试卷按要求上传。
第Ⅰ卷一、选择题(每小题3 分,共60 分,请将答案填涂在答题卡上)1.下列词语中加点字注音完全正确的一项是( )A.殷.红(yīn) 疙.瘩(gē) 亘.古(gèn)诧.异(chà)B.哺.育(bǔ)镐.头(gǎo)嗥.鸣(háo) 狂澜.(lán)C.喧.闹(xuān) 晌.午(xiǎng) 烦躁.(zào)哀悼.(dào)D.塌.败(tā) 震悚.(sǒng) 愧怍.(zuò)憎.恶(zèng)2.下列选项中书写无误的一项是()A. 收敛哽咽妇儒皆知家喻户晓B. 崎岖斓语气冲斗牛锋芒毕露C. 赫然怪诞莫名其妙颠沛流离D. 拖沓竹蔑刮目相看群蚁排衙3.依次填入下列横线的词语正确的一项是()送给医疗队的礼物中,孩子们的画引人注目。
武汉当地的中小学生们纷纷拿起画笔,向心中的白衣战士。
画作上,一面面红旗迎风飘扬,医护人员长出了天使的翅膀,病毒被重拳。
这场没有硝烟的战争,不仅让湖北本地的中小学生深受教育,全国各地居家学习的中小学生,都在从未经历过的人生里,上了一堂生动的爱国主义教育课。
A. 敬意击倒体验B. 致敬击倒体验C. 致敬击破体会D. 敬意击破体会4.下列加点词语使用不当的一项是( )A.撒贝宁主持的《开讲啦》节目鲜.为.人.知.,其青春活泼的主持风格深受广大青少年朋友青睐。
B.本次大会召开以后,各部门发扬愚公移山精神,锲.而.不.舍.地推进各项工作。
C.精彩的演奏戛.然.而.止.,一直鸦雀无声的大厅里,随即响起了雷鸣般的掌声。
D.看到浩浩荡荡的长江一.泻.千.里.,气势磅礴,我们的心胸变得更加开阔。
天津市耀华嘉诚国际中学2019-2020学年七年级下学期线上检测英语试题学校_________ 班级__________ 姓名__________ 学号__________一、单选题1. 一 What do you usually have for ________ breakfast?一 A piece of bread and ________ egg.A.a; an B.不填; the C.a; the D.不填; an2. Jenny can play ________piano, but she can’t play________ table tennis.A.the; the B.the; 不填C.不填; the D.不填; 不填3. I’m going to send it to Lily ________post.A.on B.in C.by D.with4. There’s a bridge ________the river.A.on B.across C.over D.through5. —Can a plane fly _________ the Atlantic Ocean?—Yes, but it needs to go _________ the clouds for hours. A.across; through B.through; acrossC.through; through D.cross ; across6. Turn left________the second street________the left.A.on; at B.at; on C.in; at D.to; on7. Please choose me________your partner.A.with B.as C.to D.from8. There are many trees on________sides of the river.A.each B.every C.both D.all9. —________is it from the ground to the top of thebuilding? —About two hundred meters.A.How far B.How long C.How high D.How tall10. —________is it from our school to theairport? —About half an hour’s walk.A.How long B.How far C.How much time D.How soon11. The boy was taller than Tina. He was sitting________Tina. So Tina________see the blackboard at all.A.behind; couldn’t B.behind; couldC.in front of; couldn't D.in the front of; could 12. Tony’ s parents________ a film tomorrow evening.A.are seeing B.are going toseeC.seeD.is going tosee13. I’m going to ________there.A.flying B.fly to C.take a plane D.walk to14. The journey will________me about two weeks and it will_______me plenty of money as well.A.spend; take B.take; cost C.pay; take D.cost; take15. You’d better not________ the bus at next stopA.get off B.to get off C.get out D.to get out16. There are three________fans at the airport. They are waiting for the famous actor.A.thousand B.thousands C.thousands of D.thousand of17. The presents make him________excited.A.to feel B.feel C.feels D.feeling18. The factory makes________noise. It is________noisy.A.too much; too much B.too much; much tooC.too many; much too D.much too; much too19. It took me two weeks________the novels written by Mark Twain. A.finish to read B.finishes readingC.to finish reading D.finishing to read20. Which of the following is not in London?A.River Thames B.Tower Bridge C.River Nile D.Big Ben二、完型填空21. A science teacher wants to show some idea to his students. He takes a large-mouth bottle and_______several large stones in it. He then asks the class, "Is the bottle full now?" They all reply, "Yes!"The teacher then takes some small rocks and puts them intothe_______.The small rocks go into the _______between the big rocks. He then asks, "Is it full?" This time some students give no answer, but most reply, "Yes!" The teacher then starts to drop some sand into the bottle. The sand_______the space between the small rocks. For the _______time, the teacher asks, "Is it full?" Now most are doubting, but still, some reply, "Yes!"Then the teacher brings out a cup of water into the bottle. "What's the _______of this show?" asks the teacher. One_______student answers, "No matter how _______you are, you can always find time to do some more things.""No," says the teacher, "the point is that_______you don't place the big rocks first, you'll never get them in.The big rocks are the________things in your life. If you fill your life with small things —as shown by the smallrocks, the sand and the water —you'll never have the time for the important things."【小题1】A.touches B.places C.pushes D.hits【小题2】A.mouth B.cup C.bottle D.bowl【小题3】A.space B.rooms C.fields D.edges【小题4】A.puts up B.turns up C.sets up D.fills up 【小题5】A.first B.second C.third D.fourth【小题6】A.point B.method C.progress D.rule【小题7】A.angry B.funny C.clever D.crazy【小题8】A.busy B.rich C.great D.popular【小题9】A.when B.until C.unless D.if【小题10】A.pleasant B.important C.friendly D.interesting三、阅读判断22. A man saw a boy standing beside a lake with a mirror. “Excuse me,” he said, “but could you tell me what you’re doing?”“I’m fishing.”“With a mirror? Could you tell me how it works? ” the man asked. “OK, but I want five dollars.”The man wanted to know the secret very much, so he handed the boy the money. “Now show me how it works,” he said. “Well,” the boy began, “you hold the mirror towards the water, and then a fish goes by, the sunlight in the mirror gives him a surprise. He stops and doesn’t know what to do, and then you catch him at once.” The man was surprised, “Can you really catch fish with the mirror? How many did you catch? ”“You are the fifth today!” replied that boy.【小题1】The man wanted to look at the boy’s mirror.【小题2】The man gave the boy five dollars.【小题3】The boy caught five fish that day.【小题4】The boy got at least twenty-five dollars that day.【小题5】When the man heard the boy’s words, he would be very happy.四、阅读单选23. Mr Zhang 正在国外旅游, 这是他所入住宾馆的房卡。
七年级(下)数学期中考试题【答案】一、仔细选一选(本题有12个小题,每小题3分,共36分)1、在下列各数:3.1415926、、0.2、、、、中无理数的个数是( )A .2B .3C .4D .52、如图所示,直线a 、b 被直线c 所截,现给出下列四种条件:①∠2=∠6 ②∠2=∠8 ③∠1+∠4=180° ④∠3=∠8,其中能判断是a ∥b 的条件的序号是( )A 、①②B 、①③C 、①④D 、③④3、在平面直角坐标系中,点(﹣1,m 2+1)一定在( )A. 第一象限B. 第二象限C. 第三象限D. 第四象限4、如图,将△AB C 沿AB 方向向右平移得到△DEF ,其中AF=8,DB=2,则平移的距离为( )A. 5B. 4C. 3D. 25、如图,AB ∥CD ,DE ⊥CE ,∠1=34°,则∠DCE 的度数为( )A .34°B .56°C .66°D .54°6、下列各组数中,互为相反数的组是( )A 、-2与2)2(-B 、-2和38-C 、-21与2 D 、︱-2︱和2 7、在平面直角坐标系中,若A 点坐标为(﹣3,3),B 点坐标为(2,0),则△ABO 的面积为( )A. 15B. 7.5C. 6D. 38、在实数范围内,下列判断正确的是( )A. 若n m =,则m=nB. 若22b a >,则a >bC. 若22)(b a =,则a=bD. 若33b a =,则a=b9、如图,直线AB ∥CD ,∠C=44°,∠E 为直角,则∠1等于( )A .132°B .134°C .136°D .138°10、如图,已知棋子“车”的坐标为(﹣2,﹣1),棋子“马”的坐标为(1,﹣1),则棋子“炮”的坐标为( )A .(3,2)B .(﹣3,2)C .(3,﹣2)D .(﹣3,﹣2)11、估计76的值在哪两个整数之间( )A 、75和77B 、6和7C 、7和8D 、8和912、如下图,AB ∥EF ∥CD ,∠ABC=46°,∠BCE=20°,则∠CEF=( )A. 144°B. 154°C. 164°D. 160°二、填空题(每小题3分,共18分)13、点P (2a ,1﹣3a )是第二象限内的一个点,且点P 到两坐标轴的距离之和为4,则点P 的坐标是 .14、如图将一条两边都互相平行的纸带进行折叠,设∠1为a 度,则∠2=________(请用含有a 的代数式表示)15、绝对值等于5的数是 ;38-的相反数是 ;21-的绝对值是________。