人教版七年级下期末复习训练题(二)

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人教版七年级语文下册期末专题复习综合性学习训练及答案

人教版七年级语文下册期末专题复习综合性学习训练及答案

人教版七年级语文下册期末专题复习综合性学习训练及答案一、部编七年级语文下册综合性学习1.请你按照要求完成下列题目。

过中华节日,品味传统民俗:元宵观灯、端午吃粽……多姿多彩的传统节日习俗内涵丰富,具有浓郁的中华文化韵味。

过好中国节,也是对中华文化的一种传承。

(1)(识节日)以下各个选项中,全是传统节日的是()A.元旦、春节、中秋、国庆、七夕B.圣诞、春节、中秋、七夕、重阳C.春节、元宵、端午、中秋、重阳D.春节、清明、建军、中秋、重阳(2)(品民俗)请任选一种中华传统节日(不重复例句),仿照例句的结构和内容,写一个句子。

例句:粽香端午,声声锣鼓赛龙舟。

仿句:________【答案】(1)C(2)示例1:月圆中秋,家家团聚吃月饼。

示例2:绿满清明,户户扫墓祭先人。

【解析】【分析】(1)C全是传统节日。

A“元旦”“国庆”不是传统节日。

B“圣诞”不是传统节日。

D“建军”不是传统节日。

(2)抓住前例句“粽香端午,声声锣鼓赛龙舟”的句式结构。

内容要选一种中华传统节日,且写出传统节日的民俗活动,要与前例句相谐。

一定要符合神形兼备的要求。

故答案为:⑴ C;⑵示例1:月圆中秋,家家团聚吃月饼。

示例2:绿满清明,户户扫墓祭先人。

【点评】⑴本题考查正确对待传统文化.传统文化既有精华,也有腐朽的内容,所以我们要吸取精华,去其糟粕,并要把传统文化与时代精神相结合,发展先进文化.据此作答;⑵仿句,要求有三,一是所述事物属于同类事物,二是句子的结构要相同,三是句式和语气要一致,有的还要求写作手法相同,比如修辞方法相同。

2.爱国是中华民族的优良传统。

为弘扬爱国主义精神,七年级(3)班准备开展以“祖国在我心中”为主题的综合性实践活动,请你积极参与并完成下面任务。

(1)【读新闻】阅读下面资料,用一句话概括其主要内容。

9月6日,正在澳大利亚国立大学攻读博士学位的留学生雷希颖在新浪微博发起这样的倡议:“拍张与五星红旗的合影,写下对祖国的祝福,以‘我和国旗合个影’为主题,用我们的微博传递一个声音:我爱你,中国!”倡议一出,广大网民特别是青年人和海外留学生纷纷响应,截至9月23日,“我和国旗合个影”微博话题已突破6000万阅读量,6万余条讨论。

人教版七年级英语下册期末综合复习二(U4--U6)

人教版七年级英语下册期末综合复习二(U4--U6)

七年级英语下册期末综合复习二Unit 4—Unit 6人教版一.选择题(共15小题)1.---Let's go to the to have lunch.---I'm afraid I can't.I will eat outside.()A.library B.club C.computer room D.dining hall 2.Our teacher often tells us eat in the classroom.()A.not B.don't C.never D.not to 3.Don't eat in class don't leave your seats in class.()A.or B.so C.but D.and 4.The teacher is very strict his students.()A.with B.in C.for D.to5.I can't go out school nights.()A.in B.on C.at D.with 6.There are always rules on the bus from 7 a.m.to 8 a.m.()A.too much B.much too C.too many D.much many 7.My father is kind of .He doesn't do any housework at home.()A.shy B.lazy C.quiet D.friendly 8.Let's sports.()A.to play B.plays C.playing D.play 9.One of the boys a pet.The pet is really cute.()A.have B.has C.keep D.save 10.Trees are very important.We can't .()A.cut them down B.cut it downC.cut down them D.cut down it11.I my room every day.But now I .()A.clean;am reading B.am cleaning;readingC.cleaning;read D.clean;read12.My pen pal and I often talk .()A.on phone B.by the phoneC.on the phone D.in phone13.I love the song by the band Wild and Windy.It nice.()A.smells B.tastes C.feels D.sounds14.---Hi! How's it going ?--- .()A.Great B.It's beautifulC.It's cloudy D.It's well15.Look! Mike is fast.()A.run B.to run C.running D.to running二.完形填空(共1小题)16.Hi.I'm a student in No.12Middle School.We have many (1)at school.We must get to school (2).We can't fight at school.We (3)eat food in class.If we really need to eat something,we can (4)it outside.After class,we can't (5)loudly(大声地)in the classroom.But it's really difficult for us to keep(6).Every morning,we have to practice(7)English.Mr.Liu says it can help us with our English reading.Mr.Liu is nice to us,but he is very (8 in our study.We have to listen to(9).Some of the rules are boring for me,but I know I must (10)all of them.(1)A.rules B.books C.shows D.lessons(2)A.all time B.on time C.all the time D.on the time(3)A.can B.need C.needn't D.can't(4)A.write B.eat C.draw D.give(5)A.run B.talk C.brush D.learn(6)A.sorry B.busy C.quiet D.relaxed(7)A.seeing B.writing C.listening D.reading(8)A.happy B.good C.strict D.easy(9)A.him B.her C.them D.us(10)A.like B.follow C.exercise D.arrive三.根据句意、汉语提示以及首字母提示完成下列句子。

2022春七年级语文下册期末专题复习二词语运用习题课件新人教版

2022春七年级语文下册期末专题复习二词语运用习题课件新人教版

4.下列句子中加点词语使用不恰当的一项是( D ) A.我喜欢站在楼上眺望远方,看彩霞满天,看阳光落在树 枝上发出耀眼的亮斑。 B.在春节晚会上,粤剧名家、流行音乐人跨界联手用全新 的方式演绎经典粤曲。 C.这件来自非洲南部的木雕工艺品做工精细,雕刻得栩栩 如生,令人叹为观止。 D.受新冠疫情影响,曾经最繁华的美食街变得纷至沓来, 几乎没有客人来吃饭。 【解析】D.纷至沓来:形容接连不断的到来。句意是想说人少, “纷至沓来”形容人多,用词不当。
【解析】C.“丰功伟绩”的意思是“对社会作出突出贡献,创 造过巨大业绩”,用在这里不符合语境。
12.下列句中加点成语使用有误的一项是( C ) A.对这一转变做出了巨大贡献的,有一位长期以来鲜为人知 的科学家——邓稼先。 B.他从唐诗下手,目不窥园,足不下楼,兀兀穷年,沥尽心 血。 C.张爱萍将军称他为“‘两弹’元勋”,他是首当其冲的。 D.在公共场所吸烟、乱扔东西等行为让人深恶痛绝。
【解析】A.“拘谨”与后面的“外向的性格”不一致; C.吹毛 求疵,指故意找毛病,找差错,与语境不符;D.萍水相逢,指素 不相识的人偶然相遇,与境中“老朋友”不符。
3.下列句子中加点词语使用不恰当的一项是( B ) A.今年,蝉鸣得早。杜鹃花还没零落,就听见断续的蝉声 了。 B.校庆联欢会上,同学们载歌载舞,大家都沉湎在欢乐的 气氛中。 C.夏日的大北山森林公园,树木葱茏,鸟语花香,令人心 旷神怡。 D.叫卖者要气力足,嗓子脆,还要会现编词儿,脑子快, 能随机应变。 【解析】B.沉湎:沉溺,耽于。比喻潜心于某事物或处于某种境 界或思维活动中,贬义词。不符合语境,应用“沉浸”。
A.①莅临 ②喜出望外 ③一年之计在于春 ④各得其所 B.①到来 ②沾沾自喜 ③一年之计在于春 ④各取所需 C.①莅临 ②沾沾自喜 ③一日之计在于晨 ④各取所需 D.①到来 ②喜出望外 ③一日之计在于晨 ④各得其所

2021人教版七年级数学下册《第5章相交线与平行线》期末复习培优提升训练2(附答案)

2021人教版七年级数学下册《第5章相交线与平行线》期末复习培优提升训练2(附答案)

2021人教版七年级数学下册《第5章相交线与平行线》期末复习培优提升训练2(附答案)1.如图,ABCD为一长条形纸带,AB∥CD.将ABCD沿EF折叠,A、D两点分别与A'、D'对应,若∠1=2∠2,则∠CFD'的度数为.2.如图,AB∥CD,EM是∠AMF的平分线,NF是∠CNE的平分线,EN,MF交于点O.若∠E+60°=2∠F,则∠AMF的大小是.3.如图,将一条对边互相平行的纸带进行两次折叠,折痕分别为AB、CD,若CD∥BE,∠1=30°,则∠2的大小为度.4.把一张长方形纸片ABCD沿EF折叠后ED与BC的交点为G,D、C分别在M、N的位置上,若∠EFG=50°,则∠2﹣∠1=.5.如图,已知长方形纸带ABCD,AB∥CD,AD∥BC,∠C=90°,∠DEF=52°,将纸带沿EF折叠后,点C、D分别落在H、G的位置,则下列结论中,正确的序号是.①∠BFE=52°;②∠BMG=52°;③∠AEG=76°;④∠BFH=76°.6.如图,点D,E,F分别是三角形ABC的边BC,CA,AB.上的点,且DE∥AB,DF∥CA.(1)求证∠A=∠FDE;(2)若∠A=3∠B,∠C=∠B+30°,求证:AB⊥AC.7.如图,AC∥EF,∠1+∠3=180°.(1)判定∠F AB与∠4的大小关系,并说明理由;(2)若AC平分∠F AB,EF⊥BE于点E,∠4=72°,求∠BCD的度数.8.如图,AD交BC于点D,点F在BA的延长线上,点E在线段CD上,若点H在FE的延长线上,且∠EDH=∠C,∠F=∠H,EF与AC相交于点G,∠BDA+∠CEG=180°.(1)求证:AD∥EF;(2)求证:AD是∠BAC的平分线.9.如图,已知AB∥CD,∠B=∠D,AE交BC的延长线于点E.(1)求证:AD∥BE;(2)若∠1=∠2=60°,∠BAC=2∠EAC,求∠DCE的度数.10.已知:如图EF∥CD,∠1+∠2=180°.(1)求证:GD∥CA;(2)若CD平分∠ACB,DG平分∠CDB,且∠A=40°,求∠CGD的度数.11.如图,AC∥FE,∠1+∠2=180°.(1)判定∠F AB与∠BDC的大小关系,并说明理由;(2)若AC平分∠F AB,EF⊥BE于点E,∠BDC=76°,求∠BCD的度数.12.如图,AD∥EF,∠1+∠2=180°.(1)若∠1=50°,求∠BAD的度数;(2)若DG⊥AC,垂足为G,∠BAC=90°,试说明:DG平分∠ADC.13.如图,已知∠1=∠BDE,∠2+∠FED=180°.(1)证明:AD∥EF.(2)若EF⊥BF于点F,且∠FED=140°.求∠BAC的度数.14.已知:AB∥CD,点E在直线AB上,点F在直线CD上.(1)如图(1),∠1=∠2,∠3=∠4.证EM∥FN;(2)如图(2),EG平分∠MEF,EH平分∠AEM,直接写出∠GEH与∠EFD的数量关系.15.如图,EF∥AD,AD∥BC,CE平分∠BCF,∠DAC=120°,∠ACF=20°,求∠FEC 的度数.16.如图,已知∠1+∠2=180°,且∠3=∠B.(1)求证:∠AFE=∠ACB;(2)若CE平分∠ACB,且∠2=110°,∠3=50°,求∠ACB的度数.17.如图,CD∥AB,∠DCB=70°,∠CBF=20°,∠EFB=130°,(1)问直线EF与AB有怎样的位置关系?加以证明;(2)若∠CEF=70°,求∠ACB的度数.18.如图,BD是△ABC的角平分线,DE∥BC,交AB于点E.(1)若∠A=45°,∠BDC=60°,求∠BED的度数;(2)若∠A﹣∠ABD=31°,∠EDC=76°,求∠A的度数.参考答案1.解:由翻折的性质可知:∠AEF=∠FEA′,∵AB∥CD,∴∠AEF=∠2,∵∠1=2∠2,设∠1=2x,则∠AEF=∠2=∠FEA′=x,∴4x=180°,∴x=45°,∴∠2=45°,∴∠DFE=180°﹣45°=135°,∴∠D′FE=135°,∴∠CFD'=135°﹣45°=90°.故答案为:90°.2.解:作EH∥AB,如图,∵AB∥CD,∴EH∥CD,∴∠1=∠AME,∠2=∠CNE,∵EM是∠AMF的平分线,∴∠AME=∠AMF,∵∠MEN=∠1+∠2,∴∠MEN=∠AMF+∠CNE,同理可得,∠F=∠AMF+∠CNE,∴2∠F=2∠AMF+∠CNE,∴2∠F﹣∠MEN=∠AMF,∵∠MEN+60°=2∠F,即2∠F﹣∠MEN=60°,∴∠AMF=60°,故答案为:40°.3.解:如图,延长F A,由折叠的性质,可得∠3=∠1=30°,∴∠4=180°﹣30°﹣30°=120°,∵CD∥BE,BE∥AF,∴∠ACD=∠4=120°,又∵AC∥BD,∴∠2=180°﹣∠ACD=180°﹣120°=60°.故答案为:60.4.解:由题意可得:∠DEF=∠GEF.∵DE∥BC,∴∠DEF=∠EFG=50°.∴∠DEF=∠GEF=∠EFG=50°.∴∠1=180°﹣∠GFD=180°﹣100=80°.∵AE∥BG,∴∠1+∠2=180°.∴∠2=100°.∴∠2﹣∠1=100°﹣80°=20°.故答案为:20°.5.解:四边形ABCD是长方形,∴∠C=∠D=90°,AD∥BC,∴∠BFE=∠DEF=52°,①正确;∵AD∥BC,∴∠DEF+∠EFC=180°,∴∠EFC=180°﹣∠DEF=128°,由折叠得,∠DEF=∠GEF,∠EFC=∠EFH,∠G=∠D=90°,∠C=∠H=90°,∴∠BFH=∠EFH﹣∠EFB=128°﹣52°=76°,④正确;∵∠H+∠BFH+∠HBC=180°,∴∠HMC=180°﹣90°﹣76°=14°,∵∠BMG=∠HMC,∴∠BMG=14°,②错误;∵∠AEG+∠GEF+∠DEF=180°,∴∠AEG=180°﹣52°﹣52°=76°,③正确.故答案为:①③④.6.(1)证明:∵DE∥BA,∴∠A+∠AFD=180°,∵DF∥CA,∴∠FDE+∠AFD=180°,∴∠FDE=∠A;(2)∵∠A=3∠B,∠C=∠B+30°,由三角形内角和定理得:∠A+∠B+∠C=180°,即3∠B+∠B+∠B+30°=180°,解得:∠B=30°,∴∠A=3∠B=90°,∴AB⊥AC.7.证明:(1)∠F AB=∠4.理由如下:∵AC∥EF,∴∠1+∠2=180°,又∵∠1+∠3=180°,∴∠2=∠3,∴AF∥CD,∴∠F AB=∠4;(2)∵AC平分∠F AB,∴∠2=∠CAD,又∵∠2=∠3,∴∠3=∠CAD,又∵∠4=∠3+∠CAD,∴72°=2∠3,∴∠3=36°,∵EF⊥BE,EF∥AC,∴∠FEC=90°,∠ACB=90°,∴∠BCD=∠ACB﹣∠3=90°﹣36°=54°.8.证明:(1)∵∠BDA+∠CEG=180°,∠BDA+∠CDA=180°,∴∠CEG=∠CDA,∴AD∥EF;(2)∵∠EDH=∠C,∴DH∥AC,∴∠H=∠EGC,∵∠F=∠H,∴∠F=∠EGC,∵AD∥EF,∴∠BAD=∠F,∠CAD=∠EGC,∴∠BAD=∠CAD,∴AD平分∠BAC.9.(1)证明:∵AB∥CD,∴∠B=∠DCE,∵∠B=∠D,∴∠DCE=∠D,∴AD∥BE;(2)解:∵AB∥CD,∠2=60°,∴∠BAE=∠2=60°,∠BAC=∠ACD,∴∠EAC+∠BAC=60°,∵∠BAC=2∠EAC,∴∠EAC=20°,∴∠BAC=∠ACD=40°,∵∠1+∠ACD+∠DCE=180°,∴∠DCE=180°﹣∠1﹣∠ACD=180°﹣60°﹣40°=80°.10.(1)证明:∵EF∥CD,∴∠1+∠ECD=180°,又∵∠1+∠2=180°,∴∠2=∠ECD,∴GD∥CA.(2)解:由(1)得:GD∥CA,∴∠BDG=∠A=40°,∠ACD=∠2,∵DG平分∠CDB,∴∠2=∠BDG=40°,∴∠ACD=∠2=40°,∵CD平分∠ACB,∴∠ACB=2∠ACD=80°,∵GD∥CA,∴∠ACB+∠CGD=180°,∴∠CGD=180°﹣∠ACB=180°﹣80°=100°.11.解:(1)∠F AB=∠BDC,理由如下:∵AC∥EF,∴∠1+∠F AC=180°,又∵∠1+∠2=180°,∴∠F AC=∠2,∴F A∥CD,∴∠F AB=∠BDC;(2)∵AC平分∠F AB,∴∠F AC=∠CAD,∴∠F AD=2∠F AC,由(1)知∠F AC=∠2,∴∠F AD=2∠2,∴∠2=∠BDC,∵∠BDC=76°,∴∠2=×76°=38°,∵EF⊥BE,AC∥EF,∴AC⊥BE,∴∠ACB=90°,∴∠BCD=90°﹣∠2=52°.12.(1)解:∵AD∥EF,∴∠BAD+∠2=180°,∵∠1+∠2=180°,∴∠1=∠BAD,∵∠1=50°,∴∠BAD=50°;(2)证明:∵DG⊥AC,∴∠DGC=90°,∵∠BAC=90°,∴∠BAC=∠DGC,∴AB∥DG,∴∠BAD=∠ADG,由(1)得∠1=∠BAD,∴∠1=∠ADG,∴DG平分∠ADC.13.解:(1)∵∠1=∠BDE,∴AC∥DE,∵∠2+∠FED=180°,∴∠ADE+∠DEF=180°,∴AD∥EF;(2)∵EF⊥BF,∴∠F=90°,∵AD∥EF,∠FED=140°,∴∠F AD+∠F=180°,∠ADE+∠DEF=180°∴∠DAF=90°,∠ADE=40°,∴∠2=∠ADE=40°,∴∠BAC=180°﹣∠2﹣∠DAF=50°.14.证明:(1)∵∠1=∠2,∠3=∠4,∴∠MEF=180°﹣∠1﹣∠2,∠EFN180°﹣∠3﹣∠4,∴∠MEF=∠EFN,∴EM∥FN.(2)∠EFD=2∠HEG,理由如下:∵EH平分∠AEM,EG平分∠MEF,∴∠AEH=HEM.∠FEG=∠MEG,∵AB∥CD,∴∠EFD=∠AEF,∵∠AEH=∠HEM,∴∠AEF+∠FEH=∠HEG+∠MEG,∴∠AEF=∠HEG+∠FEG﹣∠FEH=∠HEG+∠HEG=2∠HEG,∴∠EFD=2∠HEG.15.解:∵EF∥AD,AD∥BC,∴EF∥BC,∴∠ACB+∠DAC=180°,∴∠ACB=60°,又∵∠ACF=20°,∴∠FCB=∠ACB﹣∠ACF=40°,∵CE平分∠BCF,∴∠BCE=20°,∵EF∥BC,∴∠FEC=∠ECB,∴∠FEC=20°.16.(1)证明:∵∠1+∠2=180°,∠1+∠FDE=180°,∴∠FDE=∠2,∵∠3+∠FEC+∠FDE=180°,∠2+∠B+∠ECB=180°,∠B=∠3,∴∠FEC=∠ECB,∴EF∥BC,∴∠AFE=∠ACB;(2)解:∵∠3=∠B,∠3=50°,∴∠B=50°,∵∠2+∠B+∠ECB=180°,∠2=110°,∴∠ECB=20°,∵CE平分∠ACB,∴∠ACB=2∠ECB=40°.17.解:(1)EF和AB的关系为平行关系.理由如下:∵CD∥AB,∠DCB=70°,∴∠DCB=∠ABC=70°,∵∠CBF=20°,∴∠ABF=∠ABC﹣∠CBF=50°,∵∠EFB=130°,∴∠ABF+∠EFB=50°+130°=180°,∴EF∥AB;(2)∵EF∥AB,CD∥AB,∴EF∥CD,∵∠CEF=70°,∴∠ECD=110°,∵∠DCB=70°,∴∠ACB=∠ECD﹣∠DCB,∴∠ACB=40°.18.解:(1)∵∠BDC=∠A+∠ABD,∴∠ABD=∠BDC﹣∠A=60°﹣45°=15°,∵BD是∠ABC的角平分线,∴∠EBC=2∠ABD=30°,∵DE∥BC,∴∠BED+∠EBC=180°,∴∠BED=180°﹣30°=150°;(2)∵BD是∠ABC的角平分线,∴∠ABD=∠DBC,∵DE∥BC,∴∠EDB=∠DBC=∠ABD,∵∠ADE+∠EDB+∠BDC=∠EDB+∠ADE+∠A+∠ABD=180°,∴∠A+2∠ABD=76°,又∵∠A﹣∠ABD=31°,∴∠A=46°。

人教版七年级数学下册期末测试题及复习资料详解共五套

人教版七年级数学下册期末测试题及复习资料详解共五套

李庄人教版七年级数学下学期末模拟试题(一)一、选择题:(本大题共10个小题,每小题3分,共30分) 1.若m >-1,则下列各式中错误的...是( ) A .6m >-6 B .-5m <-5 C .1>0 D .1-m <2 2.下列各式中,正确的是( )16±4 B.±164 C 327- 3 2(4)- 4 3.已知a >b >0,那么下列不等式组中无解..的是( ) A . B . C . D .4.一辆汽车在马路上行驶,两次拐弯后,仍在原来的方向上平行行驶,那么两个拐弯的角度可能为 ( )(A) 先右转50°,后右转40° (B) 先右转50°,后左转40° (C) 先右转50°,后左转130° (D) 先右转50°,后左转50° 5.解为的方程组是( ) A. B. C. D.6.如图,在△中,∠500,∠800,平分∠,平分∠,则∠的大小是( ) A .1000 B .1100 C .1150 D .1200PCBA 小刚小军小华(1) (2) (3)7.四条线段的长分别为3,4,5,7,则它们首尾相连可以组成不同的三角形的个数是( ) A .4 B .3 C .2 D .1 8.在各个内角都相等的多边形中,一个外角等于一个内角的12,则这个多边形的边数是( ) A .5 B .6 C .7 D .89.如图,△A 1B 1C 1是由△沿方向平移了长度的一半得到的,若△的面积为20 cm 2,则四边形A 11的面积为( )A .10 cm 2B .12 c m 2C .15 cm 2D .17 cm 210.课间操时,小华、小军、小刚的位置如图1,小华对小刚说,假如我的位置用(•0,0)表示,小军的位置用(2,1)表示,那么你的位置可以表示成( )A.(5,4)B.(4,5)C.(3,4)D.(4,3)二、填空题:本大题共8个小题,每小题3分,共24分,把答案干脆填在答题卷的横线上. 11.49的平方根是,算术平方根是8的立方根是. 12.不等式59≤3(1)的解集是.13.假如点P(a,2)在第二象限,那么点Q(-3)在.14.如图3所示,在铁路旁边有一李庄,现要建一火车站,•为C 1A 1ABB 1CD了使李庄人乘火车最便利(即间隔 最近),请你在铁路旁选一点来建火车站(位置已选好),说明理由.15.从A 沿北偏东60°的方向行驶到B,再从B 沿南偏西20°的方向行驶到C,•则∠度.16.如图∥,∠100°平分∠,则∠.17.给出下列正多边形:① 正三角形;② 正方形;③ 正六边形;④ 正八边形.用上述正多边形中的一种可以辅满地面的是.(将全部答案的序号都填上) 18.若│x 2-25则.三、解答题:本大题共7个小题,共46分,解答题应写出文字说明、证明过程或演算步骤. 19.解不等式组:,并把解集在数轴上表示出来.20.解方程组:2313424()3(2)17x y x y x y ⎧-=⎪⎨⎪--+=⎩21.如图, ∥ , 平分∠,你能确定∠B 及∠C 的数量关系吗?请说明理由。

七下生物(人教版)期末复习综合卷二(含答案)

七下生物(人教版)期末复习综合卷二(含答案)

七年级下册生物期末复习综合卷(60分钟100分)一、选择题(本题共25小题,每小题2分,共50分)1.新冠病毒不仅会对肺部,也会对其他脏器带来伤害和影响,研究显示新冠病毒可能攻击男性睾丸,导致男性生殖障碍。

男性产生精子的器官是( )A.睾丸B.附睾C.输精管D.前列腺2.甲图是某地男女身高增长曲线,乙图为不同年龄阶段血液中生长激素含量情况,下面分析错误的是( )A.人生长最快的时期是青春期B.甲图显示女性身高快速增长开始时间早于男性,因为女性比男性提早进入青春期C.乙图显示生长激素分泌最旺盛的年龄阶段在15~20岁,此后血液中生长激素含量逐渐下降D.乙图显示生长激素分泌最旺盛的年龄阶段在15~20岁,生殖器官在这个时期也迅速发育3.进入青春期后的少年,由于生理上的变化,心理也会发生明显的变化。

下列关于青春期青少年的做法与想法中,不正确的是 ( )A.作息有规律,保证均衡营养B.积极参加文娱活动和体育活动C.自行处理心理矛盾,绝不打扰他人D.异性同学间应建立真诚友谊4.食品生产帮助村民脱贫致富。

以下是某村办食品厂生产的蛋卷的营养成分表,结合表中数据,下列说法正确的是( )营养成分表项目含量/100 g蛋白质8.0 g脂肪31.6 g糖类56.7 g钠200 mgA.脂肪是重要的备用能源物质,因此可以大量食用蛋卷B.钠盐作为无机盐,在消化道内要先被消化,再被吸收C.蛋卷中的蛋白质可在口腔内初步消化D.糖类最终在小肠被消化为葡萄糖,葡萄糖参与细胞的呼吸作用5.如图所示为消化器官示意图,下列相关叙述正确的是 ( )A.既有消化功能又有吸收功能的是③⑥B.分布于消化道内的消化腺有①⑤C.④能分泌含有消化酶的消化液D.③消化液中的消化酶种类最多6.(2020·舟山学业考)烹制牛排时,为了使牛排吃起来更加软嫩可口,通常会在烹饪前加少量嫩肉粉。

嫩肉粉中含有一种酶,它可以分解( )A.脂肪B.维生素C.纤维素D.蛋白质7.如图为探究“馒头在口腔中的变化”的实验设计,相关分析不科学的是( )A.该实验可以探究唾液淀粉酶对淀粉的消化作用B.水浴保温前分别搅拌试管可使实验现象更明显C.滴加碘液后,①号试管变蓝,②号试管不会变蓝D.实验可得出结论:37 ℃时唾液淀粉酶活性较强8.人体的各项生理活动离不开营养物质,某人病情严重,无法正常进食,医生采用静脉输入全营养液的方法为病人提供营养。

部编人教版七年级下册语文期末复习专题训练二 病句(含标点)的辨析与修改(含答案)

部编人教版七年级下册语文期末复习专题训练二 病句(含标点)的辨析与修改(含答案)

部编人教版七年级下册语文期末复习专题训练专题训练二病句(含标点)的辨析与修改病句修改1.找并列(一般用“和”“以及”“及”“与”等连接)。

(1)检查:①这几个概念是否相互包容;②各项能否与前后相关成分搭配。

(2)句子有多层定语或多层状语时,可以考虑:①语序是否不当;②是否产生歧义。

2.找介词。

(1)介词开头的句子,要检查句子是否缺少主语。

(2)句子有“与”“和”“对”“对于”时,要考虑主客位置是否颠倒。

(3)句子有“关于”“对于”“对”时,考虑是否混淆了三个词的用法。

3.看否定。

(1)一面对两面。

句子中有“是否”“能否”“优劣”“好坏”“成败”等肯定与否定、正面与反面相叠的词时,要检查一面与两面的搭配问题。

②看否定词。

要考虑是否误用多重否定。

4.看关联词。

(1)看关联词与主语的位置是否颠倒,关联词是否配套使用。

(2)看分句间语意自然形成的关系,是否与关联词所表达的关系相符。

5.看谓语。

(1)谓语是“是”“成为”时,要考虑主语和宾语意义上是否一致。

规律:谓语是“是”等词时,主语和宾语应该都表示同一事物或同类事物,或都表示同一行为活动。

(2)谓语是“避免”“预防”“防止”“忌”等词语时,可考虑句子是否把意思说反了。

6.看数量词。

(1)句子中有数量词或数量词加名词时,要检查:①是否搭配不当;②语序失当或有歧义。

(2)“缩小”“减少”“降低”等词语同倍数相搭配时属于搭配不当。

如“减少了三倍”。

7.看代词。

考虑代词是否指代不明。

1.下列句子中没有语病的一项是()A.在科学家邓稼先的一生中,无处不以务实的作风和非凡的才学震惊于世。

B.学校应当建立完善的校园欺凌预防、干预和处理机制,保障每个孩子健康成长。

C.国家博物馆最近展出了两千多年前西汉时期新出土的一大批海上丝路文物。

D.海燕队第一仗就以3比0的超大比分淘汰了近两年一直没赢。

人教版数学七年级下册期末复习练习题A组(2)

人教版数学七年级下册期末复习练习题A组(2)

A 组(2)1.下列不等式变形正确的是( )(A)由a >b ,得2-a <2-b (B)由a >b ,得a 2-<b 2-(C)由a >b ,得a >b (D)由a >b ,得2a >2b2.若关于x 的方程85124-=+-x m x 的解是负数,则m 的取值范围是( )A .m <0B .m >92C .m <92D .m >0 3. 如图:正方形ABCD 的面积为64,被分成四个相同的长方形和一个面积为4的小正方形,则a,b 的长分别是 ( )A . a=3,b=5 B.a=5,b=3 C. a=6.5,b=1.5 D.a=1.5,b=6.55.已知不等式组的解集是-1<x <2,则a 、b 的值是( )A.a =-2,b=-1B.a =-1,b =4C.a =1,b =-4D.以上答案都不对6.若是关于x 的一元一次不等式,则该不等式的解集为__________7.已知关于x 的不等式组0320x a x ->⎧⎨->⎩的整数解共有4个,则a 的取值范围是8.某养鸡场计划购买甲、乙两种小鸡苗共2000只进行饲养,已知甲种小鸡苗每只2元,乙种小鸡苗每只3元,(1)若购买这批小鸡苗共用了4500元,求甲、乙两种小鸡苗各买了多少只?(2)相关资料表明:甲、乙两种小鸡苗的成活率分别为94%和99%,若要使这批小鸡苗的成活率不低于96%,且买小鸡苗的总费用最小,问应选购甲、乙两种小鸡苗各多少只?总费用最小是多少元?51)2(12>--+m x m a9.哈尔滨地铁“二号线”正在进行修建,现有大量的残土需要运输.某车队有载重量为8吨、lO吨的卡车共也辆,全部车辆运输一次可以运输l10吨残土.(1)该车孰有载重量为8吨,l0吨的卡车各有多少辆?(2)随着工程的进展,该车队需要一次运输残土不低于l65吨,为了完成任务,该车队准备新购进这两种卡车共6辆,则最多购进载重量为8吨的卡车多少辆?10.某机械厂甲、乙两个生产车间承担生产同一种零件的任务,甲、乙两车间共有50人,甲车间平均每人每天生产零件30个.乙车间平均每人每天生产零件20个,甲车间每天生产零件总数与乙车间每天生产零件总数之和为1300个.(1)求甲、乙两车间各有多少人?(2)该机械厂改进了生产技术。

_期末复习专练:任务型阅读(二) 2020-2021学年人教版英语七年级下册

_期末复习专练:任务型阅读(二)  2020-2021学年人教版英语七年级下册

七年级英语期末复习专练:任务型阅读(二)There is a tiger there. His name is David and he is from South Africa. He is very scary and also kind of lazy. He always sleeps for about 12 hours every day. David’s birthday is on next Sunday. We will have a birthday party for him.Anna comes from Thailand. She is friendly and cute. People like her and always take photos with her. She is an elephant. Yesterday was her ninth birthday. Her favorite food is fruit and vegetables. She likes to make friends with people and people can ask her to help do things for them.Lily is a koala. She is from Australia. She is cute but a little shy. She loves sleeping in the day. But at night she usually gets up and eats food. Lily is six year’s old and healthy. 1.When is David’s birthday?___________________________2.How old is Anna?___________________________3.Where does Lily come from?___________________________4.What does Lily usually do at night?___________________________5.What is Anna?___________________________Mrs. Smith is a teacher. She teaches English in a village school. It's about 10 kilometers from her home. She usually goes to work by bus. She teaches English very well and her students like her class. They think her class is interesting. Mrs. Smith also loves her students. She thinks they are all good kids. Mrs. Smith has a daughter. Her name is Jenny. She is a middle school student. Her school is not far from their house. So she usually walks to school. But sometimes she gets up late and she rides her bike. She is never late for class. Jenny isgood at English.She usually helps her friends with their English. Her teacher thinks she is a good student. All students like her.6.What is Mrs. Smith?____________________________________________________________________ 7.How far is it from Mrs. Smith's school to her home?____________________________________________________________________ 8.What do Mrs. Smith’s students think of her class?____________________________________________________________________ 9.How does Jenny usually go to school?____________________________________________________________________10.Is Jenny's school far from her home?____________________________________________________________________David wants to buy a Christmas present for his mother. David’s father gives him $5 a week and David puts $2 in his bank account(账户) every week. After three months David takes $20 out of his bank account and goes to the shop. He looks for a great present. He sees a beautiful brooch(胸针) in the shape of his favourite pet. He says to himself, “My mother loves jewellery(珠宝), and the brooch costs only $17.” He buys the brooch and takes it home. He wraps(裹) the present in Christmas paper and then puts it under the tree. He is very happy and he wants to see the joy(喜悦) on his mother’s face that day. When his mother opens the present, she screams(尖叫). She sees a spider(蜘蛛).11.David wants to buy ________ for his mother.12.David gets money from ________.13.David takes $20 to the shop after ________.14.David ________ first when he takes the present home.15.David’s mother screams because she thinks ________.Joanna Middleton is a young gymnast (体操运动员). She talks about her life.“I need to train(训练) a lot. I often get up at six and go running. After that, I have breakfast. Then Dad takes me to the gym(体育馆). I train for 5 hours every day from Monday to Friday there.”“Some people ask me about my schoolwork. Yes, it is difficult. But my teachers know this and they are nice. I can't be at school every day and I don't have much time to play with my classmates. It's sad. I always have fun with them.”“Well, in my free time, I love being with my family. My brother also does sports for him. It's football. But we have Sunday afternoon free. So we often go to the park near our home with Mom and Dad.”“Besides(除……之外)that, I like shopping with my friends in my free time.We often meet at my home and then we take a bus to our favorite mall (商场).”16.Joanna’s ________ takes her to the gym.17.Joanna trains for ________ in a week.18.Joanna thinks her schoolwork is ________.19.Joanna and her brother often go to the park ________ (when).20.Joanna ________ with her friends in her free time.My name is Jane. My job is to write stories and newsletters for a magazine. I love traveling and hope to visit Great Britain one day. I’d like a pen pal from London, who is interested in discussing the differences between Europe and Asia. I love listening to pop music and playing football.I am Manuel. I’m a businessman and have a large company with many workers and clerks. I would like to find a pen pal who is also a businessman and lives in North America. I like using the Internet.I am working in a university. I speak English, French and Russian. My family name isJackson but my students usually call me Sarah. I’d like a pen pal who is interested in language learning working in Oxford University. I don’t like using computers for learning and I believe that true language learning can only happen in a classroom.I am Peter and interested in the differences between East Europe and North America. I love riding my horse Jackie and listening to jazz. I usually get up at 7 o’clock and go to school around 7:30 in the morning. I want to find a pen pal who has the same interest as me living in Sydney.Cindy is my first name. I am working in a travel agency. Sometimes I am called Mr. Guide as I am working. I’d like to find a pen pal who comes from Europe. I like playing the piano and listening to jazz. I am interested in history, but I don’t like discussing languages.(1题根据文章内容填空,2-4题根据文章回答问题,5题翻译划线句子)21.________ is interested in discussing the differences between Europe and Asia. 22.Where would Manuel like to find a pen pal? ________________.23.What does Sarah do? ________________.24.When does Peter go to school in the morning? ________________.25.________________.Nowadays many people want to have a more interesting experience(经历)when arriving in a new city or country. Here are some better ways to travel, both for you and for the environment(环境).Way 1 Get out of the car and walk. It’s slower but it’s the greenest way to travel. It’s also the best way to see a city, but remember to wear comfortable shoes. You can slow down and enjoy fresh air along the way.Way 2 Riding a bike is also a good choice. Many hotels now have free bikes for people. It is convenient(方便的)for people to travel around the city.Way 3 If you have to take transport in a city, try to take the bus or the subway. There is lots of information(信息)and clear maps about the public transport at the city’s website. They can help you.Way 4 If possible, take trains or ships to travel from city to city. They are greener than cars and planes.Way 5 When the only way to travel is by car, rent(租)an electric car.1-2题完成句子;3题简略回答问题;4题找出并写下全文的主题句;5题将文中画线句译成汉语。

2020-2021学年人教版七年级下期期末复习不等式和不等式组应用题2

2020-2021学年人教版七年级下期期末复习不等式和不等式组应用题2

2020-2021学年人教版七年级下期期末复习不等式和不等式组应用题21.2020年1月以来,由于新型冠状病毒(COVID﹣19)的肆虐,口罩市场出现热卖,某旗舰网店用8000元购进甲、乙两种口罩,销售完后共获利2800元,进价和售价如右表:(1).求该网店购进甲、乙两种口罩各多少袋?(2).该网店第二次以原价购进甲、乙、两种口罩,购进乙种口罩袋数不变,而购进甲种口罩袋数是第一次的2倍.甲种口罩按原售价出售,而乙种口罩让利销售.若两种口罩销售完毕,要使第二次销售活动获利不少于3680元,乙种口罩最低售价为每袋多少元?2.某种商品的进价为800元,出售时标价为1200元,后来由于该商品积压,商店准备打折销售,但要保证利润率不低于5%,则至多可打多少折?3.电动车是太原市民喜欢的交通工具之一,这使得太原市成为全国电动车保有量最高的城市之一.某电动车店以每辆1500元的价格购入某品牌电动车50辆,并以每辆1800元的价格销售,一段时间后,销售额已经超过这批电动车的进价,求此时至少已售出多少辆该品牌电动车?4.夏季即将来临,某电器超市销售每台进价分别为200元、170元的A,B两种型号的电风扇,下表是近两周的销售情况:(进价、售价均保持不变,利润=销售收入-进货成本)(1).分别求出A,B两种型号电风扇的销售单价;(2).若超市准备用不超过5400元的金额再采购这两种型号的电风扇共30台,求A种型号的电风扇最多能采购多少台?(3).在2.的条件下,超市销售完这30台电风扇能否实现利润为1400元的目标?若能,请给出相应的采购方案;若不能,请说明理由.5.某社区购买甲、乙两种树苗进行绿化,已知甲种树苗每棵30元,乙种树苗每棵20元,且乙种树苗棵数比甲种树苗棵数的2倍少40棵,购买两种树苗的总金额为9000元.(1).求购买甲、乙两种树苗各多少棵?(2).为保证绿化效果,社区决定再购买甲、乙两种树苗共10棵,总费用不超过230元,求可能的购买方案?6.某玩具厂每天生产喜羊羊与灰太狼两种毛绒玩具共450个,两种玩具的成本和售价如下表所示。

2021学年下学期七年级英语期末复习专练02:完型填空(人教版)

2021学年下学期七年级英语期末复习专练02:完型填空(人教版)

2020-2021学年下学期七年级英语期末复习题型专练(人教版)专练02 完形填空(含解析)一、完型填空01阅读短文,从每小题所给的四个选项中选出一个最佳答案,使短文通顺,结构完整。

Bob is a lazy boy. He 1 finishes his homework on time and spends all day playing computer games. Every night he goes to bed late. So he can’t sleep well. That’s 2 he always sleeps in class. His mother asks, “Why don’t you finish your homework, Bob?”“I’m busy, mom. I have 3 time for my homework . ”“What are you busy 4 ? You just play computer games all day long! Now I will spend all my time on computer games like you. I have no time to 5 you. I won’t take you to school every day, I won’t cook for you, and you can’t get money from me.”The next day, Bob has to ride to school without breakfast. After he gets home from school, he is really hungry. He goes to the supermarket 6 some food. It 7 him 20 dollars. But he finds he has no money 8 it. So he has to go back to cook noodles for himself. After he takes a shower in the evening, he can’t find a clean shirt to wear. Mom doesn’t wash his clothes. Where is his mom then? She is playing computer games 9 the desk!“ 10 lazy woman! I don’t like a lazy mother.”“I know, dear. I don’t like a lazy son, either!”1.A.always B.often C.never D.no2.A.because B.why C.so D.then3.A.not B.a little C.much D.little4.A.for B.with C.at D.to5.A.look after B.look out C.look around D.look for6.A.buys B.and buy C.to buy D.buy7.A.takes B.costs C.pays D.pays for8.A.to pay B.for C.pay for D.buy9.A.by B.at C.near D.on10.A.You B.How C.What D.What a二、完型填空02阅读短文,从每小题所给的四个选项中选出一个最佳答案,使短文通顺,结构完整。

部编人教版2023--2024学年度第二学期七年级语文下册期末测试卷及答案(含两套题)

部编人教版2023--2024学年度第二学期七年级语文下册期末测试卷及答案(含两套题)

部编人教版2023--2024学年度第二学期期末测试卷及答案七年级 语文(满分:120分 时间:120分钟)第一部分 积累与运用(共24分)一、(完成1-6题,共16分)1.(2分)下列词语中,每对加点字的读音都相同的一项是( ) A .默契./锲.而不舍 抹.杀/抹.布 B .憎恶./深恶.痛绝 哺.育/捕.捉 C .忏悔./诲.人不倦 挑.逗/挑.选 D .禁.止/忍俊不禁. 枯槐./惭愧.2.(2分)下列词语书写无误的一项是( ) A .奠基 元勋 典籍 鞠躬尽悴 B .紊乱 灌输 虔诚 警报叠起 C .澎湃 屏嶂 尴尬 大庭广众 D .斑斓 泛滥 愧怍 一反既往3.(2分)下列句子中,加点词语使用最恰当的一项是( ) A .在春花烂漫的四月,花香弥漫羊城,第27个“世界读书日”在花香中不期而至....。

B .搭载神舟十三号载人飞船的运载火箭在酒泉卫星发射中心腾空而起,气冲斗牛....。

C .新冠疫情出现以来,许多医护人员齐聚疫区,涌现出不少可歌可...泣.的抗疫故事。

D .学会见异思迁....是一门必修课,因为变是世上唯一不变的法则,要适时顺势而为。

4.(2分)下列各句中没有语病的一项是( )A .作为一档新兴的电视节目,《中国好声音》目前最重要的当务之急就是扬长避短。

带给观众更为持久的音乐享受和情感感受。

B .当前,青少年深受网络语言的影响,忽视了汉语的规范化,这应引起教育工作者的高度重视。

C .天宫二号空间实验室已开启太空之旅,专家和媒体不仅高度关注,许多航天发烧友们,尤其是航天器的粉丝们,也为天宫二号激动不已。

D .语文课堂其实就是微缩的社会言语交际场,学生在这里学习将来步入广阔社会所需要的言语交际本领与素养。

为了弘扬“耕读”文化,班级开展了劳动教育的交流会。

以下是同学们搜集的材料,请你参与并完成任务。

材料一 2022年4月,教育部颁布了《义务教育劳动课程标准(2022年版)》,规定从2022年9月起,学校应开设独立的劳动必修课程。

【人教版】新目标2016-2017学年七年级下英语期末复习测试题Unit2(含答案)

【人教版】新目标2016-2017学年七年级下英语期末复习测试题Unit2(含答案)

新目标2016-2017学年七年级下英语期末复习测试Unit 2姓名________ 班级________ 得分________一、听力理解(略)二、单项选择(每小题1分,共15分)从A、B、C、D四个选项中,选出可以填入空白处的最佳选项。

( )31. — How about taking __________ walk now?— Sounds great.A. aB. /C. anD. the( )32. — When do you go to bed?—Usually_______ nine o’clock.A. onB. inC. atD. to( )33. —What’s the time?—__________ six o’clock.A. ItsB. It’sC. This isD. They are( )34. — How many _________ does the baby have?— Two. So he only drinks some milk.A. booksB. chairsC. groupsD. teeth( )35. — Is Mr. Zhang very popular (受欢迎的) with his students?— Yes, his classes are ____ interesting.A. alwaysB. neverC. sometimesD. seldom( )36. He lost his _______ because of his age. He needs to find a new one. A. exercise B. homeworkC. workD. job( )37. — Do you want to take the big one ______ the small one?— The small one, please.A. andB. butC. orD. so( )38. All of them sing __________, but Mike sings ________.A. good; wellB. best; wellC. well; bestD. best; good( )39. — She tells me that this food smells (闻起来) not good.— Yes. But it __________ good.A. soundsB. tastesC. feelsD. sells( )40. It takes us ________ to get to the National Library.A. a half an hourB. half a hourC. an hour halfD. half an hour( )41. My grandfather lives in Miami for most of his __________.A. lifeB. familyC. ageD. years( )42. We know that 8:15 reads _________ in English.A. eight past a quarterB. eight to a quarterC. a quarter past eightD. a quarter to eight( )43. — Wow! Your room is so tidy.— Thanks. I _______ it every morning.A. brushB. cleanC. runD. teach( )44. A group of girls ________ in that bread store.A. amB. isC. areD. be( )45. — ___________?—At eight o’clock.A. Where do you like to do exerciseB. Why are you hereC. When is the Sports DayD. What time do you watch TV三、完形填空(每小题1分,共10分)阅读下面材料,从A、B、C、D四个选项中,选出最佳选项。

期末考试复习练习二(无听力有答案)2020-2021学年七年级下学期人教版英语

期末考试复习练习二(无听力有答案)2020-2021学年七年级下学期人教版英语

平原县育才中学2021年七年级下人教版英语期末考试复习练习二一、单项选择题:( )1.My friend __________ America said he doesn't like Chinese food.A. ofB. withC. fromD. to( )2.-- ________ was your weekend? --It was interesting.A. WhatB. HowC. WhyD. When( )3.-- What club does he play ________? -- Juventus.A. withB. toC. againstD. for( )4.My uncle is a waiter. He often works ________ Sunday evening.A. onB. atC. inD. of( )5.-- What do you think ______ the idea? -- I think it's funny.A. ofB. overC. inD. for( )6.He is friendly and most of his classmates like to play ______ him.A. byB. onC. withD. and( )7.He doesn't ______ at school, but at home.A. singingB. singC. to singD. sings( )8.In South China _________ a lot of rain.A. hasB. haveC. there isD. there are( )9.My father works in a restaurant. He is a __________.A. salesmanB. actorC. waitressD. waiter( )10.There are too _________ rules in the school.A. manyB. muchC. a lot ofD. some( ) 11. I can play guitar, but I can’t play football.A. the, aB. a, theC. an, theD. the, /( ) 12. We usually go to bed _______ ten o’clock.A. inB. atC. onD. for( ) 13. I don’t like lions, because they are .A. cuteB. friendlyC. scaryD. interesting( )14. —Li Ming, are you listening to music?—_______.A. Yes, I amB.Yes, I can .C. No, I’m not writingD. Yes ,I do.( ) 15. —do you get to school?—By bike.A. WhatB. WhichC. HowD. Who二、完形填空:My dad was a fisherman,and he loved the sea. He had a ____1____,but it was not always ___2__to make a living on the sea. He worked hard and stayed out ___3___he caught enough fish for the family.When the weather was ___4__, my father didn’t work,and he drove me to school. Before he left,he would ___5__ me a big kiss on the face ___6___tell me to be a good boy. It was so embarrassing(尴尬的) for me.I remembered the day. I was 12 years old. I thought I was too ____7___ for a good-bye kiss. We got to school and came to a stop. He had his usual big smile and started to kiss __8___ before he left, but I put my hand up and said,“No, dad.”It was the ___9___time that I talked to him in that way. And he ___10__ very surprised.( ) 1. A. boat B. car C. bus, D. bike( ) 2. A. easy B. hard C. careful D. careless( ) 3. A. if B. when C. before D. after( ) 4. A. bad B. fine C. cold D. hot( ) 5. A. show B. make C. give D. want( ) 6. A. but B. so C. or D. and( ) 7. A. young B. old C. small D. big( ) 8. A. you B. me C. him D. her( ) 9. A. one B. next C. first D. last( ) 10. A. thought B. found C. felt D. fell三、阅读理解:ASusan, the U.S.My best friend is Fanny. She is clever and interesting. We always look after each other. The first week we meet, I got sick and she looked after me every day.Betty, EnglandMy best friend is Ana. She is honest and serious. We were born in the same city in England. Then I moved to America with my family. I thought I would never see Ana again. When I went to college in New York, Ana and I shared the same room!Ken, JapanI love to spend time with Daisuke because he is funny and smart. We enjoy talking about the funny things we did when we were children, and tell the same stupid jokes over and over again.Lily, AustraliaLinda is a very confident girl and she is really kind. Some people may wonder why Linda and I are best friends because we are totally different, hut I think this is why we are such good friends.( ) 1. Who is Susan's best friend?A. Ana.B. Fanny.C. Linda,D. Daisuke,( ) 2. Betty’s friend is ________________.A. honest and funnyB. Funny and seriousC. Funny and smartD. honest and serious( ) 3. Ana was born in a city in _____________.A.JapanB. EnglandC. ChinaD. Australia( ) 4. Where is Ken from?A. Australia.B. The U.S.C. EnglandD. Japan,( ) 5. What is Linda like?A. Confident and kindB. Funny and smart.C. Honest and serious.D. Clever and interesting,BMany people in China like animals and usually keep some of them as their pets. These pets can bring people a lot of fun. People in the UK are pet lovers too.Lots of families in the UK have one or two pets. Dogs are their favourite pets. Cats are the second. And birds are the third. But some families don`t like keep dogs, cats or birds. They keep other special animals as their pets in their homes, like tigers, elephants and snakes.English people always look after their pets very well. They usually give them lovely names, let them wear beautiful clothes and feed them with delicious food. They usually buy the food in some pet shops. Sometimes the food is really expensive. Many pets even have their ownhouses, beds, meals and bowls. When they talk about their pets, they usually say “he” or “my son” or “she” or “my daughter”. They never say “it”.( ) 6. How many kinds of animals does the passage talk about?A. ThereB. FourC. FiveD. Six( ) 7. What do English people usually do for their pets?a. Give them lovely names.b. Bring them to the park.c.Feed them with delicious food. d. Let them wear beautiful clothesA. abcB. abdC. acdD. bcd( ) 8. “look at my dog! _______ is a nice boy, right?” said an English pet lover.A. HeB. SheC. ItD. Dog( ) 9. Which of the following is TRUE about the English people?A.All of them like dogs or cats as pets.B. They don`t like keeping snakes as pets.C. They usually make food for their pets to eat.D. They are friendly to pets and help them a lot.( ) 10. What is the best title of the passage?A. Pets in the UK.B. Pets` lovely names.C. The number of the pets.D. People`s favourite pets.四、词汇运用:1. You should help your mother with the _______________ (家务劳动) when you are free.2. David usually writes to his parents _______________ (两次) a year.3. I am searching some ____________________ (信息) about going on a trip to Tibet.4.It was a big ________________ (错误) to leave my umbrella at home.5.What ______________ (奇怪的;奇特的) clothes you’re wearing!6. Bob spends two hours in _______________ ( watch ) TV every day.7. The workers _______________ ( build ) this tall building two years ago.8. Wow! Our teacher wants to keep _______________ ( learn ).9. It’s hot here. You’d better _______________ ( not put ) on your sweater.10. Are you in a hurry _______________ ( go ) somewhere?五、完成句子:1. 这里附近有旅馆吗?there a hotel here?2. 动物园在右边。

2022-2023学年人教版数学七年级下册 期末综合复习试题

2022-2023学年人教版数学七年级下册 期末综合复习试题

2022-2023学年人教版数学七年级下册期末综合复习专项训练一、解答题1.若5a+1和a﹣19是正数m的两个平方根,求m的值.2.△ABC在直角坐标系中如图所示,请写出点A、B、C的坐标.3.当y=-3时,二元一次方程3x+5y=-3和3y-2ax=a+2(关于x,y的方程)有相同的解,求a的值.4.已知关于x、y的方程组3951x y ax y a+=+⎧⎨-=-⎩的解是一对正数,求a的取值范围.5.近年来,由于乱砍滥伐,掠夺性使用森林资源,我国长江、黄河流域植被遭到破坏,土地沙化严重,洪涝灾害时有发生,沿黄某地区为积极响应和支持“保护母亲河”的倡议,建造了长100千米,宽0.5千米的防护林.有关部门为统计这一防护林共有多少棵树,从中选出10块防护林(每块长1km、宽0.5km)进行统计.(1)在这个问题中,总体、个体、样本各是什么?(2)请你谈谈要想了解整个防护林的树木棵数,采用哪种调查方式较好?说出你的理由.6.已知:如图,BE//CD,△A=△1. 求证:△C=△E .7.已知某数的平方根是a+3和2a﹣15,求1﹣7a的立方根.8.如图,将△ABC中向右平移4个单位得到△A′B′C′.①写出A、B、C的坐标;②画出△A′B′C′;③求△ABC的面积.9.新冠疫情暴发,某社区需要消毒液3250瓶,医药公司接到通知后马上采购两种专用装箱,将消毒液包装后送往该社区.已知一个大包装箱价格为5元,可装消毒液10瓶;一个小包装箱价格为3元,可装消毒液5瓶.该公司采购的大小包装箱共用了1700元,刚好能装完所需消毒液.求该医药公司采购的大小包装箱各是多少个?10.甲、乙两商场以同样价格出售同样的商品:并且又各自推出不同的优惠方案,在甲商场累计购物超过100元后,超出100元的部分按90%收费;在乙商场累计购物超过50元后,超出50元的部分按95%收费.顾客到哪家商场购物花费少?11.为了解学生参加户外活动的情况,和谐中学对学生每天参加户外活动的时间进行抽样调查,并将调查结果绘制成如图两幅不完整的统计图,根据图示,请回答下列问题:(△)被抽样调查的学生有 人,并补全条形统计图; (△)每天户外活动时间的中位数是 (小时);(△)该校共有2000名学生,请估计该校每天户外活动时间超过1小时的学生有多少人 ?12.已知:点P 在直线CD 上, 180BAP APD ∠+∠=︒ , 12∠=∠ .求证:AB △CD , E F ∠=∠ .13.大家知道7 是无理数,而无理数是无限不循环小数,因此7 的小数部分我们不可能全部地写出来,于是小明用7 ﹣2来表示7 的小数部分,你同意小明的表示方法吗?事实上,小明的表示方法是有道理,因为 4 < 7 < 9,即2<7 <3,故 7 的整数部分是2,将这个数减去其整数部分,差就是小数部7 的整数部分为2,小数部分为( 7 ﹣2). 结合以上材料,回答下列问题:2 a 如果的小数部分为, 18 b 的整数部分为, 21.a b +求的算术平方根14.如图所示,△ABO 中,A ,B 两点的坐标分别为(2,4),(7,2),C ,G ,F ,E分别为过A ,B 两点所作的y 轴、x 轴的垂线与y 轴、x 轴的交点.求△AOB 的面积.15.马虎与粗心两位同学解方程组26312mx y x ny +=⎧⎨-=⎩时,马虎看错了m 解方程组得232x y =⎧⎪⎨=-⎪⎩;粗心看错了n 解方程组得112x y =⎧⎪⎨=⎪⎩; 试求:(1)常数m 、n 的值; (2)原方程组的解.16.对x ,y 定义了一种新运算T ,规定T (x ,y )=2ax byx y++ (其中a ,b 均为非零常数),这里等式右边是通常的四则运算,例如:T (0,1)= 01201a b ⨯+⨯⨯+ ,已知T(1,﹣1)=﹣2,T (4,2)=1. (1)求a ,b 的值;(2)若关于m 的不等式组 ()()254432T m m T m m p -≤⎧⎪⎨->⎪⎩,, 恰好有3个整数解,求p的取值范17.某体院要了解篮球专业学生投篮的命中率,对学生进行定点投篮测试,规定每人投篮20次,测试结束后随机抽查了一部分学生投中的次数,并分为五类,△:投中11次;△投中12次;△:投中13次;△:投中14次;△:投中15次.根据调查结果绘制了下面尚不完整的统计图1、图2:回答下列问题:(1)本次抽查了名学生,图2中的m= .(2)补全条形统计图,并指出中位数在哪一类.(3)求最高的命中率及命中最高的人数所占的百分比.(4)若体院规定篮球专业学生定点投篮命中率不低于65%记作合格,估计该院篮球专业210名学生中约有多少人不合格.18.如图,数轴上有A.B两点,AB=12,原点O是线段AB上的一点,OA=2OB.(1)写出A,B两点所表示的实数;(2)若点C是线段AB上一点,且满足AC=CO+CB,求C点所表示的实数;(3)若动点P、Q分别从A.B同时出发,向右运动,点P的速度为每秒2个单位长度,点Q的速度为每秒1个单位长度,设运动时间为t秒,当点P与点Q重合时,P、Q两点停止运动.①当t为何值时,2OP﹣OQ=4;②当点P到达点O时,动点M从点O出发,以每秒3个单位长的速度也向右运动,当点M追上点Q后立即返回,以同样的速度向点P运动,遇到点P后再立即返回,以同样的速度向点Q运动,如此往返,直到点P、Q停止时,点M也停止运动,求在此过程中,点M行驶的总路程和点M最后位置在数轴上对应的实数.19.如图,在△ABC中,△ABC与△ACB的平分线相交于O.过点O作EF△BC分别交AB、AC于E、F.若△BOC=130°,△ABC:△ACB=3:2,求△AEF和△EFC.20.类似于平面直角坐标系,如图1,在平面内,如果原点重合的两条数轴不垂直,那么我们称这样的坐标系为斜坐标系.若P是斜坐标系xOy中的任意一点,过点P分别作两坐标轴的平行线,与x轴、y轴交于点M、N,如果M、N在x轴、y轴上分别对应的实数是a、b,这时点P的坐标为(a,b).(1)如图2,在斜坐标系xOy中,画出点A(﹣2,3);(2)如图3,在斜坐标系xOy中,已知点B(5,0)、C(0,4),且P(x,y)是线段CB上的任意一点,则y与x之间的等量关系式为;(3)若(2)中的点P在线段CB的延长线上,其它条件都不变,试判断(2)中的结论是否仍然成立,并说明理由.。

人教版七年级下册英语期末专项训练 专项二 短语运用 (2)

人教版七年级下册英语期末专项训练 专项二 短语运用 (2)
1. Myunclehaslotsofcowsonhisfarm. Lastweekend, Ihelpedhim__________________. Itwasfun. 2.—MamyIi_lk_a_c_o_w_____________, sir? —Yes, please. Somebeefandrice. takeyourorder
方面帮助我) English.
helpsmewith
4. Tomwantsto______m__a_k_e_fr_i_e_n_d_s_____ (交朋友)
withGinaalot.
5. Wemust_____________________ (刷牙) everyday. 6. MyparentsandbIruusushalolyu_r_te_e_t_h________________ (散步)
26 intheend
答案呈现
27 blewout
28 makeawish
29 Cutup
30 goingfor/takingawalk
31 bringgoodluckto 32 tooksomephotos 33 isinterestedin 34 stayedup 35 wakeherup
答案呈现
2 playingtheviolin 3 helpsmewith
7 did (our) homework 8 takingashower
4 makefriends
9 takingthesubway
5 brushourteeth
10 rideabike
11 drivesacar 12 Don'tbelate 13 Listento 14 nottogoout 15 makehisbed

七年级历史下册期末复习提升专项训练二非选择题题型专项课件新人教版20220606562

七年级历史下册期末复习提升专项训练二非选择题题型专项课件新人教版20220606562

解题方法:材料解析题的解题思路与技巧一般如下: 一读:读题是解题的基础,先读设问,以掌握题目设置的 要求,带着问题阅读材料,这样既避免了阅读材料的盲目 性,也节约了时间。另外,在阅读材料的时候,也不能忽 视材料的标题、注释、出处这些内容。 二想:读题之后,就根据材料中的有效信息,联想所记忆 的相关知识,对号入座,这是答题的关键点。
(1)根据材料一并结合所学知识,分析指南针应用的影响。
乘坐中国海船的阿拉伯商人将指南针传到阿拉伯 国家,后来又传到欧洲,大大促进了世界远洋航 海技术的发展。
材料二 科技发明统计表(部分)
年代
公元1—400年 公元401—1000年 公元1001—1500年 公元1501—1840年
科技发 明(件)
塘江,将东西流向的大河南北贯通,带来的交通革命泽被 后世。
——摘自日本历史学家、汉学家宫崎市定《中国史》 根据材料提炼一个关于大运河或者隋炀帝的观点,并结合 材料和所学知识加以论述。(要求:观点明确,史论结合, 逻辑清晰)
【思路点拨】根据材料中的 “说炀帝是史上罕见的暴君也言 过其实,与北朝齐和南朝齐的诸君主相比,他并不昏庸”提 炼出观点——隋炀帝并不昏庸,然后结合材料内容和所学知 识进行论证;根据材料中的 “大运河北起海河,中间经过黄 河、淮河和长江,到达钱塘江,将东西流向的大河南北贯通, 带来的交通革命泽被后世”提炼出观点——大运河是中国古 代的伟大工程,然后结合材料内容和所学知识进行论证。
4. 材料 我国历史上第一个经济重心形成于黄河中下游地 区,经济重心是相对稳定的,但随着社会生产力的发展 和经济、政治、国防形势的演变,必然也将寻找更适宜 的发展区域,以扩大经济重心的范围乃至迁移。我国历 史上的经济重心大致经历了由西向东,由北向南的旅 程,最终在东南地区,结聚成一个新的经济重心,并取 代了黄河中下游地区经济重心的地位,这就是我国历史 上的经济重心南移事件。

专项训练(二) 《解决实际问题》-七年级数学期末总复习(人教版)

专项训练(二) 《解决实际问题》-七年级数学期末总复习(人教版)

专项训练(二) 《解决实际问题》(解析版)一、应用有理数解决实际问题1.武汉市元月份某一天早晨的气温是-3℃,中午上升了8℃,则中午的气温是( )A.-5℃B.5℃C.3℃D.-3℃2.某升降机第一次上升6m,第二次上升4m,第三次下降5m,第四次又下降7m(记升降机上升为正,下降为负)(1)这时升降机在初始位置的上方还是下方?相距多少米?(2)升降机共运行了多少米?3.某工厂一周计划每日生产自行车100辆,由于工人实行轮休,每日上班人数不一定相等,实际每日生产量与计划量相比情况如下表(以计划量为标准,增加的车辆数记为正数,减少的车辆数记为负数):(1)生产量最多的一天比生产量最少的一天多生产多少辆?(2)本周总生产量是多少?比原计划增加了还是减少了?增减数为多少?4.在南宁——东盟博览会期间,某出租车一天下午以沃顿大酒店为出发地在东西方向营运,假设向东走为正,向西走为负,行车里程(单位:km)依先后次序记录如下:+9,-3,-5,+4,-8,+6,-3,-6,-4,+8.(1)将最后一名乘客送到目的地,出租车在沃顿大酒店的什么方向?离沃顿大酒店出发点多远?(2)若每公里的价格为2.4元,司机一个下午的营业额是多少?二、应用整式加减解决实际问题1.一种股票第一天的最高价比开盘价高0.3元,最低价比开盘价低0.2元;第二天的最高价比开盘价高0.2元,最低价比开盘价低0.1元;第三天的最高价等于开盘价,最低价比开盘价低0.13元,计算每天最高价与最低价的差,以及这些差的平均值2.某家具厂生产一种课桌和椅子.课桌每张定价200元,椅子每把定价80元,厂方在开展促销活动期间,向客户提供两种优惠方案:方案一:每买一张课桌就赠送一把椅子;方案二:课桌和椅子都按定价的80%付款.某校计划添置100张课桌和x把椅子(x>100)(1)用含x的代数式分别表示方案一与方案二各需付款多少元?(2)当x=300时,通过计算说明该校选择哪种购买方案更省钱?(3)若两种优惠方案可以同时使用(使用方案一优惠过的商品不能再使用方案二优惠,使用方案二优惠过的商品不能再使用方案一优惠),当x=300时,请你设计出更省钱的购买方案,并计算出该方案所需的费用3.某商店出售网球和网球拍,网球拍每只定价80元,网球每个定价4元,商家为促销商品,同时向客户提供两种优惠方案:①买一只网球拍送3个网球;②网球拍和网球都按定价的9折优惠.现在某客户要到该商店购买球拍20只,网球x个(x大于60)(1)若该客户按优惠方案①购买需付款多少元?(用含x的式子表示)(2)若该客户按优惠方案②购买需付款多少元?(用含x的式子表示)(3)若x=100时,通过计算说明,此时按哪种优惠方案购买较为合算(4)当x=100时,你能结合两种优惠方案给出一种更为省钱的购买方案吗?试写出你的购买方案,并计算出所需的钱数.三、应用一元一次方程解决实际问题1.甲、乙两店分别购进一批无线耳机,每副耳机的进价甲店比乙店便宜10%,乙店的标价比甲店的标价高5.4元,这样甲乙两店的利润率分别为20%和17%,则乙店每副耳机的进价为( )A.56元B.60元C.72元D.80元2.育红学校七年级学生步行到郊外旅行.七(1)班的学生组成前队,步行速度为4km/h,七(2)班的学生组成后队,速度为6km/h.前队出发1h后,后队才出发,同时后队派一名联络员骑自行车在两队之间不间断地来回进行联络,他骑车的速度为12km/h,求后队追上前队时所用的时间及后队追上前队时联络员行了多少路程?3.2019年11月,我区组织了一次职工篮球联赛,比赛分初赛阶段和决赛阶段,在初赛阶段中,每队有10场比赛,每场比赛都要分出胜负,每队胜一场得2分,输一场得1分,积分超过15分才能获得决赛资格(1)若乙队初赛获得4场胜利,问乙队是否有资格参加决赛?请说明理由;(2)已知甲队在初赛阶段的积分为18分,求甲队初赛阶段胜、负各多少场?4.中国古代算书《算法统宗》中有这样一道题:甲赶群羊逐草茂,乙拽肥羊随其后,戏问甲及一百否?甲云所说无差谬,若得这般一群凑,再添半群小半(注:四分之一的意思)群,得你一只来方凑.玄机奥妙谁参透?大意是说:牧羊人赶着一群羊去寻找草长得茂盛的地方放牧,有一个过路人牵着1只肥羊从后面跟了上来,他对牧羊人说你赶的这群羊大概有100只吧?牧羊人答道:如果这一群羊加上1倍,再加上原来羊群的一半,又加上原来这群羊的四分之一,连你牵着的这只肥羊也算进去,才刚好满100只你知道牧羊人放牧的这群羊一共有多少只吗?四、应用线段的知识解决实际问题1.如图某学校从教学楼到图书馆总有少数同学不走人行道,而横穿草坪.(1)试用所学的知识来说明少数学生这样走的理由;(2)请问学生这样走行吗?如不行请你在草坪上竖起一个牌子,写上一句话来警示学生应该怎样做2.如图,线段AB表示一条已对折的绳子,现从P点处将绳子剪断,剪断后的各段绳子中最长的一段为30cm,若AP=23BP,求原来绳长多少?3.如图,相距10千米的A 、B 两地间有一条笔直的马路,C 地位于A 、B 两地之间且距A 地4千米.小明同学骑自行车从A 地出发沿马路以每小时5千米的速度向B 地匀速运动,当到达B 地后立即以原来的速度返回,到达A 地停止运动设运动时间为t(时),小明的位置为点P(1)当t =0.5时,求点P 、C 间的距离(2)当小明距离C 地1千米时,直接写出所有满足条件的t 值(3)在整个运动过程中,求点P 与点A 的距离(用含t 的代数式表示).【参考答案及解析】专项训练(二)一、应用有理数解决实际问题1.B 【解析】-3+8=5(℃)所以中午的气温是5℃.2.解:(1)(+6)+(+4)+(-5)+(-7)=-2(m)因为-2<0,所以这时升降机在初始位置的下方,相距2m.(2)6+4+5+7=22(m)答:升降机共运行了22m.3.解:(1)7-(-10)=17(辆)答:生产量最多的一天比生产量最少的一天多生产17辆.(2)100×7+(-1+3-2+4+7-5-10)=696(辆)答:本周总生产量是696辆,比原计划减少了4辆4.解:(1)9+(-3)+(-5)+4+(-8)+6+(-3)+(-6)+(-4)+8=-2(km)出租车在沃顿大酒店的西面,离沃顿大酒店2km ;(2)2.4×(9+|-3|+|-5|+4+|-8|+6+|-3|+|-6|+|-4|+8)=134.4(元)答:司机一个下午的营业额是134.4元二、应用整式加减解决实际问题1.解:设开盘价为x 元,第一天:最高价为(x+0.3)元,最低价(x -0.2)元,差价为:(x+0.3)-(x -0.2)=x+0.3-x+0.2=0.5(元); 第二天:最高价(x+0.2)元,最低价(x -0.1)元,差价为:(x+0.2)-(x -0.1)=x+0.2-x+0.1=0.3(元); 第三天:最高价x 元,最低价(x -0.13)元,差价为:x -(x -0.13)=x -x+0.13=0.13(元)差的平均值为:0.5+0.3+0.133=0.31(元), 答:第一天到第三天的差价分别为0.5元,0.3元,0.13元,差的平均值为0.31元2.解:(1)方案一:200×100+80×(x-100),即,80x+12000,方案二:200×80%×100+80×80%x,即,64x+16000,(2)当x =300时,80x+12000=36000元,64x+16000=35200元,因此方案二省钱,答:方案二比较省钱(3)使用方案一购买100张桌子,赠送100把椅子,再用方案二买200把椅子,200×100+80×80%×200=32800元, 答:用方案一购买100张桌子,再用方案二买200把椅子最省钱,所需费用为32800元3.解:(1)根据题意得:80×20+4(x-20×3)=1360+4x(x>60);(2)根据题意得:(80×20+4x)×90%=1440+3.6x ;(3)当x =100时,方案①:1360+4×100=1760(元);方案②:1440+3.6×100=1800(元),因为1760<1800,所以选择方案①合算,(4)先按方案①购买20只球拍,获赠60个网球,再按照方案二购买40个网球,20×80+40×4×90%=1744(元)答:所需钱数为1744元三、应用一元一次方程解决实际问题1.B 【解析】设乙店每副耳机的进价为x 元,则甲店每副耳机的进价为0.9x 元,依题意得:(1+17%)x -(1+20%)×0.9x=5.4,解得:x =60.故乙店每副耳机的进价为60元2.解:设后队追上前队用了xh,依题意得:4(1+x)=6x,解方程得:x =2.12×2=24(km)答:当后队追上前队时,后队所用时间为2h,联络员骑行了24km.3.解:(1)没有资格参加决赛.因为积分为4×2+(10-4)×1=14<15.(2)设甲队初赛阶段胜x 场,则负了(10-x)场,由题意得:2x+1×(10-x)=18,解得:x =8,所以,10-x =10-8=2,答:甲队初赛阶段胜8场,负2场4.解:设牧羊人放牧的这群羊一共有x 只,依题意得:2x+12 x+14x+1=100, 解得:x =36.答:牧羊人放牧的这群羊一共有36只四、应用线段的知识解决实际问题1.解:(1)少数学生这样走的理由是:两点之间,线段最短;(2)学生这样走不行,警示牌可以是:脚下留情(答案不唯一)2.解:①AP 是最长的一段,AP =15=23PB,得PB =15×23 =452cm, 由线段的和差,得 AB =AP+PB =15+452 =752所以原来绳长为2AB =75cm,②PB 是最长的一段,由题意PB =15cm,AP =23BP,得: AP =23×15=10cm, 由线段的和差,得AB =AP+PB =10+15=25cm,所以原来绳长为50cm,综上所述:原来绳长为50cm 或75cm.3.解:(1)由题意得:v =5km/h,AC =4km,AB =10km,当t =0.5时,s =vt =5×0.5=2.5(km),即AP =2.5km,所以PC =AC -AP =4-2.5=1.5(km);(2)①当小明在C 点的左边时,(4-1)÷5=3÷5=0.6(h);2当小明在C 点的右边时,(4+1)÷5=5÷5=1(h).③同法可得返回时,t =3h 或175h 答:当小明距离C 地1km 时,t 的值是0.6h 或1h 或3h 或17 h ;(3)当小明从A 地运动到B 的过程中,AP =vt =5tkm,当小明从B 地运动到A 的过程中,AP =20-vt =(20-5t)km.。

人教版七年级下数学期末复习质量检测卷(二)(含答案)

人教版七年级下数学期末复习质量检测卷(二)(含答案)

数学学习质量检测卷(二)(期末)一.选择题(每题3分,满分27分)1.的平方根是()A.2 B.﹣2 C.D.±22.点P的坐标为(2﹣a,3a+6),且到两坐标轴的距离相等,则点P的坐标为()A.(3,3)B.(3,﹣3)C.(6,﹣6)D.(3,3)或(6,﹣6)3.下列调查中,最适合全面调查(普查)的是()A.调查某型号炮弹的射程B.调查我市中学生观看电影《少年的你》的情况C.调查某一天离开重庆市的人口数量D.调查某班学生对南开校史知识的了解程度4.下列图形中,已知∠1=∠2,则可得到AB∥CD的是()A.B.C.D.5.如图,数轴上表示实数的点可能是()A.点P B.点Q C.点R D.点S6.若是关于x、y的方程组的解,则a+b的值为()A.3 B.﹣3 C.2 D.﹣27.如图,将Rt△ABC沿着点B到C的方向平移到△DEF的位置,AB=10,DO=4,平移距离为6,则阴影部分面积为()A.42 B.96 C.84 D.488.已知a>b,则下列四个不等式中,不正确的是()A.a﹣3>b﹣3 B.﹣a+2>﹣b+2 C.a>b D.1+4a>1+4b9.已知关于x、y的方程组,满足x≥y,则下列结论:①a≥﹣2;②a=﹣时,x=y;③当a=﹣1时,关于x、y的方程组的解也是方程x+y=2的解,④若y≤1,则a≤﹣1.其中正确的有()A.1个B.2个C.3个D.4个10.在一年一度的“安仁春分药王节”市场上,小明的妈妈用280元买了甲、乙两种药材.甲种药材每斤20元,乙种药材每斤60元,且甲种药材比乙种药材多买了2斤.设买了甲种药材x斤,乙种药材y斤,你认为小明应该列出哪一个方程组求两种药材各买了多少斤?()A.B.C.D.二.填空题(满分18分,每小题3分)11.写出“全等三角形的面积相等”的逆命题.12.已知方程2x+3y﹣1=0,用含x的代数式表示y,则.13.已知角a的余角比它的补角的还少10°,则a=.14.如图,A(4,0),B(0,3),点C为AB中点,以点B为圆心,BC长为半径作圆弧,交线段OB于点D.则点D的坐标为.15.小亮解方程组的解为,由于不小心,滴上了两滴墨水,刚好遮住了两个数●和★,请你帮他找回这个数,●=.16.某楼梯的截面如图,其中ER=5米,RQ=10米,若在楼梯上铺设地毯,至少需要米.三.解答题17.(10分)(1)解方程组(2)解方程4x2﹣25=0(3)解不等式组,并把解集在数轴上表示出来18.(6分)计算:﹣+()2+|1﹣|.19.(8分)机械厂加工车间有85名工人,平均每人每天加工大齿轮16个或小齿轮10个,2个大齿轮和3个小齿轮配成一套,问需分别安排多少名工人加工大、小齿轮,才能使每天加工的大小齿轮刚好配套?20.(8分)感知与填空:如图①,直线AB∥CD.求证:∠B+∠D=∠BED.阅读下面的解答过程,井填上适当的理由.解:过点E作直线EF∥CD∴∠2=∠D()∵AB∥CD(已知),EF∥CD,∴AB∥EF()∴∠B=∠1()∵∠1+∠2=∠BED,∴∠B+∠D=∠BED()应用与拓展:如图②,直线AB∥CD.若∠B=22°,∠G=35°,∠D=25°,则∠E+∠F=度.方法与实践:如图③,直线AB∥CD.若∠E=∠B=60°,∠F=80°,则∠D=度.21.(10分)我们居住的地球上有七大洲,各大洲面积之和约为15000万平方千米.根据图形提供的信息,解决下面的问题.(1)设计适当的表格表示数据资料.(2)画扇形统计图表示各大洲所占面积的百分比.(3)用文字语言描述数据资料信息.22.(8分)如图,把△ABC向上平移3个单位,再向右平移3个单位得到△A'B'C′.(1)在图中画出△A'B′C′;(2)请写出点A′,B',C'的坐标;(3)求出△ABC的面积.23.(10分)某农户今年1月初以20000元/亩的价格承包了10亩地用来种植某农作物,已知若按传统种植,每月每亩能产出3000千克,每亩的种植费用为2500元;若按科学种植,每月每亩产量可增加40%,但种植费用会增加2000元/亩,且前期需要再投入25万元,花费4个月的时间进行生长环境的改善,改善期间无法种植.已知每千克农作物市场售价为3元,每月底一次性全部出售,假设前x个月销售总额为y(万元).(1)当x=8时,分别求出两种种植方法下的销售总额y(万元);(2)问:若该农户选择科学种植,几个月后能够收回成本?(3)在(2)的条件下,假如从2020年1月初算起,那么至少要到何时,该农户获得的总利润能够超过传统种植同样时间内所获得的总利润?24.(12分)阅读材料,善于思考的小军在解方程组时,采用了一种“整体代换”的解法:解:将方程②变形:4x+10y+y=5即2(2x+5y)+y=5③把方程①代入③得:2×3+y=5∴y=﹣1把y=﹣1代入①得x=4∴方程组的解为请你解决以下问题:(1)模仿小军的“整体代换”法解方程组(2)已知x、y满足方程组①求x2+4y2的值;②求的值.参考答案一.选择题1. C.2. D.3. D.4. B.5. B.6. A.7. D.8. B.9. C.10. A.二.填空题11.面积相等的三角形全等.12. y=﹣x+.13.60°.14..15. 8.16. 15.三.解答题17.解:(1),由①得:3x﹣2y=8③,②+③得,6x=18,∴x=3,②﹣③得,4y=2,∴y=.故原方程组的解为:;(2)4x2﹣25=0,整理得x2=,解得:x=±;(2),由①得,x≤3,由②得,x>﹣1,故不等式组的解集为:﹣1<x≤3.在数轴上表示为:18.解:原式=﹣2﹣+5+﹣1=2.19.解:设需安排x名工人加工大齿轮,安排y名工人加工小齿轮,,解得:.答:需安排25名工人加工大齿轮,安排60名工人加工小齿轮.20.解:感知与填空:过点E作直线EF∥CD,∴∠2=∠D(两直线平行,内错角相等),∵AB∥CD(已知),EF∥CD,∴AB∥EF(两直线都和第三条直线平行,那么这两条直线也互相平行),∴∠B=∠1(两直线平行,内错角相等),∵∠1+∠2=∠BED,∴∠B+∠D=∠BED(等量代换),故答案为:两直线平行,内错角相等;两直线都和第三条直线平行,那么这两条直线也互相平行;两直线平行,内错角相等;等量代换.应用与拓展:过点G作GN∥AB,则GN∥CD,如图②所示:由感知与填空得:∠E=∠B+∠EGN,∠F=∠D+∠FGN,∴∠E+∠F=∠B+∠EGN+∠D+∠FGN=∠B+∠D+∠EGF=22°+25°+35°=82°,故答案为:82.方法与实践:设AB交EF于M,如图③所示:∠AME=∠FMB=180°﹣∠F﹣∠B=180°﹣80°﹣60°=40°,由感知与填空得:∠E=∠D+∠AME,∴∠D=∠E﹣∠AME=60°﹣40°=20°,故答案为:20.21.解:(1)用表格表示数据资料如下:(2)所画的扇形统计图如图所示:(3)亚洲的面积最大,大洋洲的面积最小,亚洲面积约为大洋洲面积5倍.22.解:(1)如图所示,△A'B′C′即为所求.(2)A′(2,2),B'(7,5),C'(4,6);(3)△ABC的面积为4×5﹣×5×3﹣×2×4﹣×1×3=20﹣7.5﹣4﹣1.5=7.23.解:(1)若按传统种植,当x=8时,y=10×3000×3×8÷10000=72万元;若按科学种植,当x=8时,y=10×3000×(1+40%)×3×(8﹣4)÷10000=50.4万元;(2)设n个月后可收回成本.(n﹣4)﹣2×10﹣25≥0,解得,∴10个月后收回成本;(3)设m个月后该农户获得的总利润能够超过传统种植同样时间内所获得的总利润,根据题意得,,整理得,1.6m>57.4,解得:,∴m=36,∴至少36个月后,该农户获得的总利润能够超过传统种植同样时间内所获得的总利润.24.解:(1)由②得:3x+6x﹣4y=19,即3x+2(3x﹣2y)=19③,把①代入③得:3x+10=19,即x=3,知识像烛光,能照亮一个人,也能照亮无数的人。

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人教版七年级下期末训练题(二)一、单项选择(每空1分,共15 分)( )1.—Do you like vegetables, Vera?—Yes. There _______ many kinds of vegetables in the supermarket. I often buy them there.A.haveB.beC.isD.are( )2. —What does your brother _______?—He is of medium height and of medium build.A.look likeB.look atC.look forD.look down( )3. —Did you have a good time watching the movie last night?—No. There were two tall boys _______me,and I couldn’t see it clearly.A.behindB.next toC.across fromD.in front of( )4. —Where _______ your pen pal come from?—Oh,he _______ from Canada.A.do;comeB.does;comesC.do;comesD.does;come( )5. —Don’t run in the hallway, Ben. It’s dangerous!—_______.A.Yes,I doB.No, I don’tC.Sorry, Mr LinD.You’re welcome( ) 6. She often a train to school, sometimes she goes to school bus.A. takes, takesB. takes, byC. by, takesD. by, by( ) 7. It will you a long time a language well.A. spend, learnB. to spend, to learnC. take, to learnD. take, learn( ) 8. Li Tao is from a small village.A. a 11 years old boyB. a 11-year-old boyC. an 11-year-old boyD. an 11 years old( ) 9.Our teacher is very strict us our homework.A. in, inB. with, withC. in, withD. with, in( ) 10. The movie is , and we are really very when we see it.A. relaxing, relaxingB. relaxed, relaxedC. relaxing, relaxedD. relaxed, relaxing( )11. There are many animals in the zoo. But some animal are scary.A. kinds of, kind ofB. kinds of, kinds ofC. kind of, kind ofD. kind of, kinds of( )12. There are a lot of in our school.A. woman teachersB. women teachersC. woman teacherD. women teacher( ) 13. —Is the woman your teacher?—Yes, she teaches Chinese.A. usB. ourC. oursD. we( ) 14. —Excuse me. Is there a post office near here?—.A. Yes, it is.B. No, this isn’t.C. Yes, there is.D. No, there aren’t.( ) 15. —Have a nice weekend.—.A. That’s OK.B. No problem.C. You’re welcome.D. Thank you.二、完形填空(每空1分,共10 分)People in different 16 like to eat different foods. 17 kind of food people in the UK 18 toeat? Fish and fried 19 chips are very 20 in the UK. Sometimes people 21 them at home, but they usually go to a fast food 22 to buy them. They can have them 23 the restaurant or 24 them away home. Sometimes, they 25 like to eat them in a park.( )16. A. country B. countries C. city D. town( ) 17. A. Who B. When C. What D. How( ) 18. A. would like B. like C. likes D. enjoys( ) 19 A. potato B. potatoes C. potatos D. tomatoes( ) 20. A. cheap B. large C. popular D. dear( ) 21. A. cooking B. cook C. cooks D. to cook( ) 22. A. restaurant B. library C. supermarket D. mall( ) 23. A. in B. on C. under D. from( ) 24. A. get B. bring C. take D. to take( ) 25. A. and B. also C. too D. either三、阅读理解(每空2 分,共30分)AWe had a terrible school trip last week. Some students were late. Then we waited half an hour for the school bus, but it didn’t arrive. Finally, our teacher took us to take the subway. It took over an hour. When we arrived at the zoo, we were all tired and hungry. We wanted to see dolphins, but there weren’t any. There were some really smart seals(海豹), but we didn’t see the show because we arrived too late. We forgot our cameras, so we didn’t take any photos. Then it started to rain, and no one had an umbrella. We didn’t see many animals because of the rain. So we went for lunch. So we ate hamburgers. My friends also had some ice—cream. But I didn’t have any, because I don’t like it. I wanted French fries, but there weren’t any in the shop. They were sold out! Finally we went back to school. We were wet, tired and stressed out. I didn’t enjoy my school trip at all.( ) 26.Why did the teacher take the students to take the subway?A. Because the students didn’t want to have the trip.B. Because the school bus didn’t arrive.C. Because the students didn’t like taking the school bus.D. Because the students didn’t take cameras.( ) 27. The students were when they arrived at the zoo.A. excitedB. happyC. tiredD. lucky( )28. What animal show was there at the zoo?A. Dolphin show.B. Seal show.C. Monkey show.D. Panda show.( )29. How was the weather after they arrived at the zoo?A. Sunny.B. CloudyC. WindyD. Rainy( )30. What did the writer think of the school trip?A. Terrible.B. Great.C. Not bad.D. Fun.BIt’s easy to get lost(迷路) in strange city. Here are some tips(方法) to help you find the way and get to your destination(目的地).Take a map with you when you go to a new place. If you lose your way, look at the map, you’ll find the place where you want to go.If you still can’t find the place on the map, ask the police for help. They will tell you the right way to go.Remember the name of your hotel and the street where it is. If you can’t find the way back, take a taxi.I hope these tips can help you.( ) 31. What does the underlined word “strange” mean?A. 熟悉的B. 美丽的C. 现代的D. 陌生的( ) 32. How many tips are there in the passage?A. One.B. Two.C. Three.D. Four.( ) 33. What should you take with you when you go to a strange city?A. A taxi.B. A map.C. A watch.D. A dictionary.( ) 34. You should ask for help if you lose your way.A. a manB. a womanC. the policeD. your teacher( ) 35. Which is the best title(标题) of the passage?A. Get lost in a large cityB. Some useful tipsC. Never go to a strange cityD. A map is usefulCHi, I’m a middle school student. I’m Judy. In my class there are thirty-eight students. How do they go to school every day? Seventeen of them take buses because they live far from the school. Six students walk. They think walking is good exercise. Fifteen students ride their bikes to school because they like riding bikes very much and their homes aren’t far from the school. No one goes to school by car. How do I go to school? Ha, I’m one of the fifteen.( ) 36. There are students in Judy’s class.A. 29B. 30C. 38D. 45( ) 37. Six students think is good exercise.A. runningB. walkingC. swimmingD. riding( ) 38. students ride their bikes to school.A. 17B. 6C. 10D. 15( ) 39. Judy goes to school .A. on footB. by bikeC. by busD. by car( ) 40. No one gets to school .A. by carB. by bikeC. on footD. by bus四、选用方框里的句子补全对话(每空1分,共5分)( ) B: Yes. 41 .( ) A: Well, I’m new in town. 42( ) B: Yes, there is. It’s on Bridge Street. 43( ) A: Oh••• 44B: It’s not too far from here. I can walk with you.A: Oh, that’s great! Thanks so much.( ) B: 45五、句型转换(每空2分,共10分)46. You can’t wear sunglasses in the classroom.(改为祈使句)sunglasses in the classroom! 47. My weekend was boring.(对划线部分提问)your weekend?48. Li Ming did his homework last night. (改为否定句)Li Ming his homework last night. 49. How’s the weather? (同义句转换)the weather ?50. Joe sits on my left. Lucy sits on my right. (合并为一句)I sit Joe Lucy.六、词语运用。

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