单元评价检测(四)
单元质量检测(四) (A卷 学业水平达标)
单元质量检测(四) (A卷学业水平达标)(时刻：120分钟，满分：120分)一、基础巩固(15分，每小题3分)1．依次填入下列各句横线处的词语，恰当的一组是()①海水是迷人的，大海在向我们呼唤。
我们的本能告诉我们，我们是在那个大海里________的。
②游戏向动物提供了大量机会，使它们能把自身的各种天赋技能和复杂的自然环境、社会环境巧妙地________起来。
③________对幼小动物________成年动物，游戏差不多上一种十分重要的学习行为。
A．产生组合不管/依旧B．产生组合不管/和C．诞辰组合不管/和D．诞辰结合不管/依旧解析：选A“诞辰”，生日；“产生”，出生。
“诞辰”是名词，“产生”是动词，明显①句中填“产生”。
“结合”，人或事物间发生紧密联系；“组合”，组织成为整体。
依照②句句意，“组合”更恰当些。
“不管”表示在任何条件下结果都可不能改变，搭配的应该是“依旧”而不能用“和”。
2．下列各句中加点成语的使用，全都不正确的一项是()①因此科学家都说，凤蝶幼虫会利用狰狞的面相，虚张声势，威吓敌人。
②本来雌凤蝶生了专门多的后代。
但是这些后代，能够长大的却如数家珍。
③莫言一生潜心为学，用心于文学事业，为世人奉献出一部部宏伟巨著，从《红高粱》到《檀香刑》，再到《蛙》《生死疲劳》，每一部都力透纸背。
④越南老兵吴日灯回忆说，他目睹了战争的残酷，但也看到了中国士兵秋毫无犯粮仓和百货商场，并在门外贴上封条的情形。
⑤母亲薄氏卧病期间，汉文帝刘恒不顾自己帝王的身份，常常目不见睫，衣不解带，亲自侍奉母亲，为她亲口尝汤药。
⑥中国艺术意境的创成，既须得屈原的缠绵悱恻，又须得庄子的超旷空灵。
缠绵悱恻，才能一往情深；超旷空灵，才能羚羊挂角。
A．③⑤⑥B．①②④C．②④⑤D．①③⑥解析：选C①虚张声势：假装出强大的气概。
指假造声势，借以吓人。
使用正确。
②如数家珍：看起来数自己家藏的珍宝那样清晰。
比喻对所讲的情况十分熟悉。
2024年部编版四年级上册第四单元检测试卷及答案
10. 阅读材料可知，《山海经》具有( BC )的特点。(多选)(2 分) A. 语言优美 B. 想象奇特 C. 内容广泛 D. 结构严谨
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第2部分 积累与运用
7. 先将下面的四字词语补充完整，再完成练习。(12 分) 腾( 云 )驾( 雾 ) 驱( 寒 )取( 暖 ) 精( 疲 )( 力 )竭 神( 机 )妙( 算 ) 气急( 败 )( 坏 ) 刀枪( 不 )( 入 ) (1)诸葛亮真是 ____神__机__妙__算_____，巧用空城计解了西城之围。 (选词填空，2 分)
(√)
(2) 《山海经》可以说是一部上古社会生活的百科全书。
(√)
13. 根据材料，为这本《山海经》写推荐语，把它推荐给同学 们。(4 分) _____示__例__：__这___本__《__山__海__经__》__全__本__无__删__节__，__由__名__家__翻__译__，___ _包__含__了__许__多__有__趣__的___古__代__神__话__故__事__，__配__有__经__典__插__图__，__是__青___ _少__年__的__优__选__读__物__。____________________________________
街
衔
春天来了，万物复苏，____衔____泥的燕子在和煦的春风
里飞来飞去。路上的行人渐渐多了起来，原本冷清的
____街____道也变得热闹起来。
单元评价检测(四)
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单元评价检测(四)第八章(45分钟 100分)一、选择题(每小题4分,共28分)1.二元一次方程组x y 4x y 2，-=⎧⎨+=⎩的解是( ) x 3(A)y 7=⎧⎨=-⎩ x 1(B)y 1=⎧⎨=⎩ x 7(C)y 3=⎧⎨=⎩ x 3(D)y 1=⎧⎨=-⎩ 2.方程ax-y=3的解是x 1y 2，，=⎧⎨=⎩则a 的取值是( ) (A)5 (B)-5 (C)2 (D)13.解方程组3x y z 42x 3y z 12x y 2z 3，①，②③-+=⎧⎪+-=⎨⎪+-=⎩以下解法中不正确的是( )(A)由①、②消去z,再由①、③消去z(B)由①、②消去z,再由②、③消去z(C)由①、③消去y,再由①、②消去y(D)由①、②消去z,再由①、③消去y4.(2012·雅安中考)由方程组2x m 1y 3m，+=⎧⎨-=⎩可得出x 与y 的关系是( ) (A)2x+y=4 (B)2x-y=4 (C)2x+y=-4 (D)2x-y=-45.(2012·衡阳中考)为了丰富同学们的课余生活，体育委员小强到体育用品商店购羽毛球拍和乒乓球拍，若购1副羽毛球拍和1副乒乓球拍共需50元，小强一共用320元购买了6副同样的羽毛球拍和10副同样的乒乓球拍，若设每副羽毛球拍为x 元，每副乒乓球拍为y 元，列二元一次方程组得( )x y 50(A)6(x y)320，+=⎧⎨+=⎩x y 50(B)6x 10y 320，+=⎧⎨+=⎩ x y 50(C)6x y 320，+=⎧⎨+=⎩ x y 50(D)10x 6y 320，+=⎧⎨+=⎩ 6.我国古代数学巨著《孙子算经》中的“鸡兔同笼”题为：“今有雉(鸡)兔同笼，上有三十五头，下有九十四足.问雉兔各几何”.正确答案是( )(A)鸡24只，兔11只 (B)鸡23只，兔12只(C)鸡11只，兔24只 (D)鸡12只，兔23只7.(2012·黑龙江中考)某校团委与社区联合举办“保护地球，人人有责”活动，选派20名学生分三组到120个店铺发传单，若第一、二、三小组每人分别负责8个，6个，5个店铺，且每组至少有两人，则学生分组方案有( )(A)6种 (B)5种 (C)4种 (D)3种二、填空题(每小题5分，共25分)8.(2012·徐州中考)方程组3x y 3,2x y 2+=⎧⎨-=⎩的解为_____________.9.(2012·贺州中考)已知x1y2，=⎧⎨=⎩是关于x,y的二元一次方程组2ax by3ax by6，-=⎧⎨+=⎩的解，则a+b=_________.10.(2012·黔西南中考)已知-2x m-1y3和12x n y m+n是同类项，则(n-m)2 012=________.11.(2012·咸宁中考)某宾馆有单人间和双人间两种房间，入住3个单人间和6个双人间共需1 020元，入住1个单人间和5个双人间共需700元，则入住单人间和双人间各5个共需________元.12.三轮摩托车的轮胎安装在前轮上行驶12 000千米后报废，安装在左后轮和右后轮则分别只能行驶7 500千米和5 000千米.为使该车行驶尽可能多的路程，采用行驶一定路程后将2个轮胎对换的方法，但最多可对换2次，那么安装在三轮摩托车上的3个轮胎最多可行驶_________千米.三、解答题(共47分)13.(12分)(1)(2012·常州中考)解方程组：3x2y5, x3y9；-=⎧⎨+=⎩(2)(2012·广州中考)解方程组x y8, 3x y12.-=⎧⎨+=⎩14.(10分)(2012·白银中考)若方程组ax y b,x by a+=⎧⎨-=⎩的解是x1,y1,=⎧⎨=⎩求(a+b)2-(a-b)(a+b).15.(12分)(2012·株洲中考)在学校组织的游艺晚会上，掷飞标游艺区游戏规则如下：如图掷到A区和B区的得分不同，A区为小圆内部分，B区为大圆内小圆外的部分(掷中一次记一个点).现统计小华、小芳和小明掷中与得分情况如下：小华：77分 小芳：75分 小明： ？ 分(1)求掷中A 区、B 区一次各得多少分？(2)依此方法计算小明的得分为多少？16.(13分)(2012·新疆中考)某工厂用如图甲所示的长方形和正方形纸板做成如图乙所示的A ，B 两种长方体形状的无盖纸盒.现有正方形纸板140张，长方形纸板360张，刚好全部用完，问能做成多少个A 型盒子？多少个B 型盒子？(1)根据题意，甲和乙两同学分别列出的方程组如下：甲：x 2y 140,4x 3y 360；+=⎧⎨+=⎩乙x y 140,34x y 3602+=⎧⎪⎨+=⎪⎩：， 根据两位同学所列的方程组，请你分别指出未知数x ，y 表示的意义：甲：x 表示_________，y 表示；__________乙：x 表示_________，y 表示____________；(2)求出做成的A 型盒子和B 型盒子分别有多少个(写出完整的解答过程)？答案解析1.【解析】选D.x y 4,(1)x y 2,(2)-=⎧⎨+=⎩(1)+(2)得，2x=6， 解得，x=3，代入(1)得，3-y=4，y=-1，故原方程组的解是x 3,y 1.=⎧⎨=-⎩2.【解析】选A.把x 1,y 2=⎧⎨=⎩代入方程ax-y=3，得a-2=3，解得a=5. 3.【解析】选D.因为每个方程中均含有三个未知数，所以两次所消去的未知数必须相同，才能得到二元一次方程组，而选项D 中两次所消去的未知数不同，不能得到二元一次方程组，是错误的.4.【解析】选A.由2x+m=1，得m=1-2x ；由y-3=m ，得m=y-3,∴1-2x=y-3,即2x+y=4.5.【解析】选B.由题意得，x y 50,6x 10y 320.+=⎧⎨+=⎩6.【解析】选B.设鸡有x 只，兔有y 只，根据题意得x y 35,2x 4y 94,+=⎧⎨+=⎩解得x 23,y 12,=⎧⎨=⎩即有鸡23只，兔12只. 7.【解析】选B.设第一小组有x 人，第二小组有y 人，则第三小组有(20-x-y)人，则8x+6y+5(20-x-y)=120，3x+y=20，当x=2时，y=14，20-x-y=4，符合题意；当x=3时，y=11，20-x-y=6，符合题意；当x=4时，y=8，20-x-y=8，符合题意；当x=5时，y=5，20-x-y=10，符合题意；当x=6时，y=2，20-x-y=12，符合题意.故学生分组方案有5种.故选B.8.【解析】两方程相加得5x=5,解得x=1,把x=1代入3x+y=3得3×1+y=3,解得y=0,所以方程组3x y3,2x y2+=⎧⎨-=⎩的解为x1,y0.=⎧⎨=⎩答案：x1 y0=⎧⎨=⎩9.【解析】把x1y2，=⎧⎨=⎩代入方程组2ax by3ax by6，-=⎧⎨+=⎩得2a2b3a2b6,，-=⎧⎨+=⎩解方程组得a33b,2，=⎧⎪⎨=⎪⎩代入a+b=92.答案：9210.【解析】由同类项的概念得m1n,m n 3.-=⎧⎨+=⎩解得m2,n1.=⎧⎨=⎩把m2,n1=⎧⎨=⎩代入(n-m)2 012得(1-2)2 012=1.答案：111.【解析】设一个单人间需要x元，一个双人间需要y元.根据题意得3x6y 1 020, x5y700,①②+=⎧⎨+=⎩化简①得：x+2y=340③，②-③得：3y=360，y=120，把y=120代入③得：x=100，所以5(x+y)=1 100.答案：1 10012.【解析】三轮摩托车每行驶1千米，前胎、左后胎和右后胎分别损耗112 000，1 7 500和15 000，所以3个轮胎最多行驶3÷111()12 0007 500 5 000++=7 200千米.设行驶x千米时，把前胎和右后胎对换，再走y千米，把左右后胎对换，再走z千米，报废.x y z 1,12 000 5 0007 500x y z 1,7 5007 500 5 000x y z 1.5 00012 00012 000⎧++=⎪⎪⎪++=⎨⎪⎪++=⎪⎩解得4x 3 428,73y 3 171,7z 600.⎧=⎪⎪⎪=⎨⎪=⎪⎪⎩x+y+z=7 200. ∴行驶43 4287千米时，把前胎和右后胎对换，再走33 1717千米，把左右后胎对换，再走600千米，报废.答案：7 20013.【解析】(1)3x 2y 5,x 3y 9,①②-=⎧⎨+=⎩ ②×3-①，得11y=22，y=2；将y=2代入②，得x+6=9，x=3.∴方程组的解为x 3,y 2.=⎧⎨=⎩ (2)x y 8,3x y 12,①②-=⎧⎨+=⎩ ①+②得，4x=20,解得x=5,把x=5代入①得，5-y=8,解得y=-3,所以方程组的解是x 5,y 3.=⎧⎨=-⎩ 14.【解析】∵方程组ax y b,x by a +=⎧⎨-=⎩的解是x 1,y 1,=⎧⎨=⎩∴a1b,1b a,+=⎧⎨-=⎩解得a0,b1,=⎧⎨=⎩所以(a+b)2-(a-b)(a+b)=(0+1)2-(0-1)(0+1)=1+1=2.15.【解析】(1)设掷到A区和B区的得分分别为x分，y分.根据题意，得5x3y77,3x5y75.+=⎧⎨+=⎩解得x10,y9.=⎧⎨=⎩答：掷中A区一次得10分，掷中B区一次得9分.(2)由(1)可知，4x+4y=76(分).答：小明的得分是76分.16.【解析】(1)甲：x表示能做成A型盒子的个数，y表示能做成B型盒子的个数.乙：x表示做一个A型盒子用正方形纸板的张数，y表示做一个B型盒子用正方形纸板的张数.(2)解方程组x2y140,4x3y360+=⎧⎨+=⎩得x60,y40.=⎧⎨=⎩答：做成的A型盒子有60个，做成的B型盒子有40个.。
单元评价检测(四)
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单元评价检测（四）(45分钟100分)一、单项选择题(每小题2分，共40分)1.下图是四个国家的人口出生率与死亡率，其中人口自然增长率最高的是( )A.①B.②C.③D.④2.第六次全国人口普查显示我国总人口约为13.7亿，我国的陆地面积约为960万平方千米，那么，我国的人口密度约为( )A.98人/平方千米B.129人/平方千米C.135人/平方千米D.143人/平方千米读不堪重负的地球图，完成3、4题。
3.该漫画反映了当前世界上存在着严重的( )A.环境问题B.人口问题C.资源问题D.水污染问题4.漫画所反映的问题可能产生的后果是( )A.劳动力普遍短缺B.资源短缺C.各国国防兵员不足D.全球人口老龄化5.衡量一个国家和地区人口增长是否合理的标准是( )A.人口增长越慢越好B.人口增长越快越好C.人口增长是否与社会、经济的发展相适应，与环境资源相协调D.人口停止增长最好6.世界上人口稠密区绝大部分分布在( )A.赤道附近和两极地区B.中低纬度近海平原地区C.高原和山区D.中低纬度内陆地区7.(2011·福建泉州)拉丁美洲居民主要使用下列何种语言( )A.英语B.汉语C.阿拉伯语D.葡萄牙语读四国轮廓略图，回答8、9题。
8.图中四国中，居民主要信奉伊斯兰教的是( )A.甲B.乙C.丙D.丁9.丁国通用的语言是( )A.英语B.阿拉伯语C.汉语D.俄语10.下列建筑分别代表的宗教是( )A．伊斯兰教、佛教、基督教B．佛教、基督教、伊斯兰教C．基督教、伊斯兰教、佛教D．基督教、佛教、伊斯兰教11.世界上信仰人数最多的宗教是( )A.基督教B.佛教C.伊斯兰教D.印度教12.关于聚落的描述错误的是( )A.城市聚落与乡村聚落同时出现B.目前，全世界约有一半的人居住在城市C.城市聚落人口密度大，服务业发达D.欧洲、北美洲农村人口少，村落房屋较稀疏13.渔村、牧村、农村、城市等不同聚落类型的出现，主要是由于( )A.经济发展水平不同B.开发利用的时间长短不一C.各地政治制度不同D.人类的劳动生产方式不同14.右图属于乡村聚落中的哪种类型( )A.农村B.牧村C.林场D.渔村15.下列关于民居特点的叙述，正确的是( )A.东南亚村庄的房屋墙厚、窗小B.西亚地区的居民住高架屋C.云南西双版纳的傣族居民住竹楼D.北极地区的因纽特人住窑洞16.右图为意大利的威尼斯水城，影响水城形成和发展的主要因素是( )A.地形和土壤B.气候和资源C.河流和交通D.宗教和习俗17.下图中埃及和苏丹两国划分国界的依据是( )A.山脉B.河湖C.经线D.纬线18.(2011·山东青岛)下图中各国家(比例不一)间的商谈属于南北对话的是( )A.A与BB.B与CC.A与CD.C与D19.(2011·湖南株洲)2011年4月，“金砖五国”首脑峰会在我国海南三亚召开，体现了国际合作日益密切，世界正朝着经济全球化方向发展。
单元评价检测(四)
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单元评价检测（四）第四章物态变化（45分钟 100分）一、选择题(本大题共8小题,每小题5分,共40分)1.给体温计消毒,下列哪种方法是可行的( )A.放入沸水中煮B.放入温水中泡C.用酒精棉花擦洗D.在酒精灯上烧【解析】选C.体温计的量程是35℃～42℃,若在沸水中煮,显然远远高于42℃,体温计中的水银会将体温计胀破;若放入温水中,起不到消毒作用;若放在酒精灯上烧,显然温度更高于42℃,体温计将胀破,故A、B、D 三种方法都不行,只有C用酒精棉花擦洗,既能消毒,又不至于破坏体温计.2.根据下表所提供的数据，在标准大气压下，以下判断正确的是（）A.80℃的酒精是液态B.气温接近-50℃时,应选用水银做温度计的测温液体C.-39℃的水银吸热，温度可能不变D.铅的凝固点是-328℃【解析】选C.A酒精的沸点是78℃,所以在标准大气压下80℃的酒精只能是气态;B水银的凝固点是-39℃,在此温度以下水银是固态,水银温度计是按照液态水银的热胀冷缩特点制成的,所以水银是固态时温度计已不能使用;C固态水银是晶体,-39℃是水银的熔点,晶体在熔化过程中要吸热,温度保持不变;D铅的熔点和凝固点都是一样的,是328℃.3.（2010·河池中考）如图所示是物质在熔化时温度随时间变化的图象，下列从图象中获得的信息不正确．．．的是（）温度/℃A.这种物质是晶体，其熔点为48℃B.在BC段物质处于固液共存状态C.在BC段物质不吸收热量，温度不变D.第10分钟后物质处于液态【解析】选C.晶体在熔化时有一定的温度，即熔点，在熔化时需要继续吸热，但温度保持不变，从图像上看晶体熔化曲线图中有一段平直的部分；由图可知该物质是晶体，熔点是48 ℃，在BC段时，该物质处于熔化过程中，处于固液共存状态，需要继续吸热，A、B正确，C不正确；第10分钟后物质全部熔化变为液体，D正确。
单元评价检测(4)
答案：风光
踏实
体面
14．谈谈你对下列加点词语的理解。(4分)
(1)据周围的村民介绍，曹宝林年轻时是当地竹篾匠中出了 名的 “快枪手”，由于手艺精湛，嘉善等地的一些商家都 特意到他这里订购竹器。 答：____________________________________________ (2)由于联丰村的竹器远近闻名，周围人称他们这里“竹篾
间艺人的待遇；(3)政府努力搭建把民间艺术变为经济价值的
平台，鼓励更多的年轻人去学习和继承。
16.从第④段中找出与第①段画线句子意思相近的一句话，抄
写在下面的横线上。(2分) 答：_____________________________________________ 答案：可是不论我走到哪里，在梦境里，我的灵魂总在那几 条小胡同里转悠。
（四）
（90分钟
100分）
一、积累与运用(20分) 1．下列词语中加点字的注音全都正确的一 项是(2分)( A.馄饨(tun) ) 秸秆(jiã)
﹒
﹒
忌讳(huì)
﹒
小钹(bó)
﹒
B.腌蛋(yān)
﹒ 囿于(yòu) ﹒ C.招徕(lái) ﹒ ﹒
颤巍(chàn) D.苋菜(xiàn)
隔阂(hái)
答案：表面说避疫免灾，主要作用还是传歌。由老一代把记 忆中充满智慧和热情的东西，全部传给下一辈。
10.选文中画线语句使用了什么描写方法？有什么作用？ (3 分) 答：____________________________________________ 【解析】本题考查的是对外貌描写作用的把握能力。外貌描 写的目的是以‚形‛传‚神‛，刻画人物的性格，反映人物 的内心世界。 答案：外貌描写；表现老人的兴奋活跃，热情专注。
单元评估检测(四)
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单元评估检测(四)必修1 第6章（45分钟 100分）一、单项选择题(包括7题,每题4分,共28分。
每题只有一个选项符合题意。
)1.(2014·滕州模拟)下列关于细胞周期的叙述,正确的是( )A.成熟的生殖细胞产生后立即进入下一个细胞周期B.机体内所有的细胞都处于细胞周期中C.抑制DNA的复制,细胞将停留在分裂期D.细胞分裂间期为细胞分裂期提供物质基础2.(2014·牡丹江模拟)菠菜根的分生区细胞不断分裂,对该过程的叙述正确的是( )A.细胞分裂间期,DNA复制,DNA和染色体的数目增加一倍B.细胞分裂前期,核膜和核仁逐渐消失,中心体发出星射线形成纺锤体C.细胞分裂中期,染色体形态固定、数目清晰,适于染色体计数和形态观察D.细胞分裂末期,在细胞中央赤道板的位置出现一个由膜构成的细胞板3.如图表示一个二倍体植物细胞(2N=4)有丝分裂后期的示意图。
其中表示正确的是( )4.(2014·济南模拟)下列关于细胞衰老的叙述,不正确的是( )A.衰老的细胞内水分减少,结果细胞萎缩,新陈代谢速率减慢B.衰老的细胞,细胞膜通透性改变,物质运输功能降低C.细胞内的色素会随着细胞衰老而逐渐积累,从而影响新陈代谢D.衰老的细胞呼吸速率加快,细胞核体积变小,染色质收缩5.某研究小组发现了胎盘生长因子抗体——PLGF抗体,该抗体能与肿瘤内的胎盘生长因子结合,阻断胎盘生长因子与毛细血管结合的通路,削减了对肿瘤的养分供给,癌细胞分裂速率减缓,低于免疫系统杀死癌细胞的速率,使肿瘤明显缩小。
下列说法正确的是( )A.人体内只有癌变的细胞内存在原癌基因B.PLGF抗体的化学本质是蛋白质,其合成与分泌需多种细胞器的参与C.癌细胞容易转移,是由于细胞表面的糖蛋白增多,细胞之间的润滑作用增强D.该抗体与肿瘤内的胎盘生长因子结合属于细胞免疫6.(2014·河南名校联考)如图为与有丝分裂相关的坐标曲线。
单元评价检测(四)
中国的一个基本国情，这就是（
A.人口众多，人均资源丰富 B.面积广大，资源丰富 C.人口众多，人均资源不足 D.人多力量大，什么困难都不怕
）
【解析】选C。温家宝总理的讲话包含了两层意思：一是人口 众多，二是人均资源不足。
18.目前，我国实施的具有战略性意义、直接有利于西部地区
经济发展的工程是（ ①南水北调工程 ③青藏铁路工程 A.①② ）
【解析】图示的四大工程为南水北调、西气东输、西电东送和 青藏铁路。南水北调是针对我国水资源南多北少而建设的跨流 域调水工程，西气东输和西电东送是针对我国能源和生产力地 区分布不均而建设的能源调配工程，青藏铁路是为了加强该地
区与外界联系而建设的一项重要交通工程。四大工程告诉我们
要实现区域可持续发展一是要因地制宜，二是要加强区域合作。 答案：（1）南水北调 西气东输 西电东送 青藏铁路
）
【解析】9选D，10选C，11选C。第9题，长江流域的四个省级 行政中心自西向东依次为重庆、武汉、南京、上海，属于直辖 市的是重庆、上海；第10题，除E（重庆）位于第二级阶梯外， 其他城市皆位于第三级阶梯。第11题，沿江地带的上海宝山、
安徽马鞍山、湖北武汉、重庆、四川攀枝花构成了“钢铁工业
走廊”的雏形。
（2）西气东输 青藏铁路
（3）因地制宜发展经济；加强区域联系，发挥区域优势，分 工协作，互惠互利
16.黄土高原和长江沿江地带共同面临的生态环境问题
是（
）
B.水资源短缺 D.水土流失
A.荒漠化 C.大气污染
【解析】选D。黄土高原面临的生态环境问题有荒漠化、水资 源短缺和水土流失；长江沿江地带面临的生态环境问题有大气 污染、水土流失。
17.国务院总理温家宝在访美期间发表演讲时曾说过这样一句 话：中国有13亿人，不管多么小的问题，只要乘以13亿，那就 成为很大很大的问题；不管多么可观的财力、物力，只要除以 13亿，那就成为很低很低的人均水平。温总理在演讲中表述了
2020年【人教新目标版】九年级上：Unit4单元评价检测试卷(含答案)
2020年精编人教版英语资料单元评价检测(四)一、单项选择（共10小题；共10分）1. --- Why is Wang Tao so popular in your class?--- Because he is very .A. silentB. humorousC. proudD. absent2. The famous singer will come and sing for us , so I will go to the concert tonight.A. in personB. take care ofC. look afterD. all the time3. The girl is very shy. She asks others for help when she has problems.A. oftenB. alwaysC. seldomD. usually4. --- How is your grandma?--- She's fine. She used to TV at home after supper. But now she is used to out for a walk.A. watch; goB. watching; goC. watching; goingD. watch; going5. There great changes in our city in the last ten years.A. areB. wereC. hadD. have been6. Even though he is only eight years old, he often helps his mother lots ofchores.A. /; withB. /; toC. but; withD. but; to7. It is relaxing me on the bed and listen to music.A. for; lieB. for; to lieC. to; lieD. to; to lie8. --- You used the Internet, didn't you?--- Yes. But now I don't.A. surfB. surfingC. to surfD. to surfing9. They have a daughter and the girl is very good at her school work. They all takepride her.A. 15 years old; withB. 15 years old; inC. 15-year-old; withD. 15-year-old; in10. --- Many students don't know how to stress and become worried.--- I think they should ask their teachers for help.A. deal withB. get onC. care forD. think about二、完形填空（共10小题；共15分）I have two good friends. They are Jim and Alice. We are in the same class. We often11 time together. They 12 a lot in the last few years.Jim used to like junk food very much. He didn't use to like fruit or vegetables. He didn't use to drink milk. He used to eat a lot of fast food, such as hamburgers, fried food, burnt meat. He used to be very fat and 13 . When we climbed the mountains, he couldn't reach the top. But now he likes to eat much healthy food. He 14 eat junk food any more. For breakfast, he eats eggs and drinks milk. For lunch, he eats vegetables and chicken. And for dinner, he eats noodles, vegetables and some fruit. He 15 eats ice cream. He also takes more exercise now. Every morning, he gets up early and runs on the playground. In the afternoon, he plays soccer with our friends. Now he is much 16 and healthier than before.Alice used to like most subjects, 17 she didn't use to like math. She thought math was too difficult. She couldn't learn it well. She used to be afraid 18 the math test. She couldn't pass it. But now she doesn't mind the math test. With the help of our math teacher, she has become more and more 19 in math. When she has problems, she always goes to our math teacher for help. Last week, she got an A for the math test. How happy she was! You see, If you work as hard as you can, 20 is impossible.11. A. pay B. spend C. take D. cost12. A. change B. changed C. have changed D. are changing13. A. health B. unhealthy C. healthily D. unhealthily14. A. doesn't B. didn't C. don't D. hasn't15. A. often B. usually C. hardly D. hardly never16. A. thin B. thinner C. heavy D. heavier17. A. and B. or C. though D. but18. A. of B. to C. with D. on19. A. interest B. interesting C. to interest D. interested20. A. everything B. something C. nothing D. anything三、阅读理解（共3小题；共6分）Twenty years ago, I drove a taxi for a living. One night I went to pick up a passenger at 2: 30 a.m. When I arrived to collect, I found the building was dark except for a single light in a ground floor window.I walked to the door and knocked. "Just a minute." answered a weak, elderly voice.After a long pause, the door opened. A small woman in her eighties stood before me. By her side was a small suitcase.I took the suitcase to the car, and then returned to help the woman. She took my arm and we walked slowly toward the car.She kept thanking me for my kindness. "It's nothing," I told her. "I just try to treat my passengers the way I would want my mother treated.""Oh, you're such a good man," she said. When we got into the taxi, she gave me an address, and then asked, "Could you drive through downtown?""It's not the shortest way," I answered quickly."Oh, I'm in no hurry," she said. "I'm on the way to hospice(临终医院). I don't have any family left. The doctor says I don't have very long."I quietly reached over and shut off the meter(计价器).For the next two hours, we drove through the city. She showed me the building where she had once worked, the neighborhood where she had lived, and the furniture shop that had once been a ballroom where she had gone dancing as a girl.Sometimes she'd ask me to slow down in front of a particular building and would sit staring into the darkness, saying nothing.At dawn, she suddenly said, "I'm tired. Let's go now."We drove in silence to the address she had given me."How much do I owe you?" she asked."Nothing," I said."You have to make a living," she answered. "Oh, there are other passengers," I answered.Almost without thinking, I bent and gave her a hug. She held onto me tightly. Our hug ended with her remark, "You gave an old woman a little moment of joy."21. The old woman chose to ride through the city in order to .A. show she was familiar with the cityB. see some places for the last timeC. let the driver earn more moneyD. reach the destination on time22. The taxi driver did not charge the old woman because he .A. wanted to do her a favorB. shut off the meter by mistakeC. had received her payment in advanceD. was in a hurry to take other passengers23. What can we learn from the story?A. Giving is always a pleasure.B. People should respect each other.C. An act of kindness can bring people great joy.D. People should learn to appreciate others' concern.四、单词拼写(单句首字母填空)（共5小题；共5分）24. Be careful, please. What you do has an important i on your children.25. --- What are you doing?--- I am studying for the English e .26. Don't talk or laugh loudly. We should keep s in the library.27. It's hard for the famous people to have their p time and room.28. --- What are your school rules?--- We can't be a from classes unless we are ill.五、选词填空(句子选词填空)（共5小题；共5分）29. That is what I want to know.30. --- Why is she unhappy?--- She to meet her friend this morning because of the bad weather.31. Wang Xue is the top student and she always gets good in every test.32. Do you to jump down from high places?33. Are there any differences between English and American English?六、作文（共1小题；共25分）34. 假如你有一位同学叫Huang Qiang，他在你和朋友的帮助下有了很大的进步。
单元评价检测(四)
【解析】选C。本题主要考查近视眼和远视眼的判断及矫正方 解析】 法。爷爷平时戴眼镜看远处的物体，当看近物时将眼镜去掉， 爷爷平时戴眼镜看远处的物体，当看近物时将眼镜去掉， 说明爷爷是近视眼，戴的是凹透镜；奶奶看远处不用戴眼镜， 说明爷爷是近视眼，戴的是凹透镜；奶奶看远处不用戴眼镜， 当看近物时需戴上眼镜，说明是远视眼，戴的是凸透镜。 当看近物时需戴上眼镜，说明是远视眼，戴的是凸透镜。
9.(2010·乐山中考)下列反射活动中， 9.(2010·乐山中考)下列反射活动中，属于通过长期生活经 乐山中考 验积累而形成的是( 验积累而形成的是( A.缩手反射 A.缩手反射 C.眨眼反射 C.眨眼反射 ) B.排尿反射 B.排尿反射 D.望梅止渴 D.望梅止渴
【解析】选D。本题考查反射的类型。反射分为简单反射和 解析】 本题考查反射的类型。 复杂反射两种类型。缩手反射、眨眼反射和排尿反射等， 复杂反射两种类型。缩手反射、眨眼反射和排尿反射等，都 是人生来就有的简单反射，只要出现刺激， 是人生来就有的简单反射，只要出现刺激，正常的人体都会 做出相应的反应。望梅止渴则不是人生来就有的， 做出相应的反应。望梅止渴则不是人生来就有的，需要通过 长期的生活经验的积累才能形成，属于复杂反射。 长期的生活经验的积累才能形成，属于复杂反射。
14.当你发现有人滥杀青蛙、偷猎鸟类， 14.当你发现有人滥杀青蛙、偷猎鸟类，或者知道有人盗伐 当你发现有人滥杀青蛙 林木时，最好的措施是( 林木时，最好的措施是( )
A.去和他们辩论， A.去和他们辩论，不让他们继续这么做 去和他们辩论 B.事不关己， B.事不关己，高高挂起 事不关己 C.将这些人抓住， C.将这些人抓住，送往公安局惩处 将这些人抓住 D.告诉当地政府或有关部门，及时制止和惩处他们 D.告诉当地政府或有关部门， 告诉当地政府或有关部门 【解析】选D。本题考查保护生物多样性的做法。保护生物 解析】 本题考查保护生物多样性的做法。 多样性应该从自我做起，去动物园时不要投喂食物; 多样性应该从自我做起，去动物园时不要投喂食物;拒绝食 用野生动物；遇到别人正在伤害野生动物时也不要冲动, 用野生动物；遇到别人正在伤害野生动物时也不要冲动,应 该冷静下来,向当地的公安局(或动物保护协会)举报; 该冷静下来,向当地的公安局(或动物保护协会)举报;积极宣 传保护生物多样性的重要性。 传保护生物多样性的重要性。
最新版鲁教版七年级上册英语Unit4单元评价检测及答案解析
单元评价检测(四)Unit 4(45分钟 100分)第Ⅰ卷(共50分)一、听力(10分)(一)录音中有五个句子,每个句子听一遍,选择与其相符的图片。
(5分)1. 2. 3. 4. 5.(二)录音中有一段对话,听对话两遍,然后从每小题A、B、C中选出能回答每个问题的正确答案。
(5分)6.How was David’s last weekend?A.Great.B.OK.C.Not good.7.When did David get up last Sunday?A.At six.B.At seven.C.At eight.8.How long did he do his homework?A.One hour.B.Three hours.C.Two hours.9.What’s his favorite subject?A.Science.B.Geography.C.English.10.What did he do after he read the book?A.He watched TV.B.He went to the park to fly kites.C.He played basketball.二、单项选择(10分)1.Alan late to study for the math test last night.A.stays upB.stayed upC.gets upD.got up2.I played basketball my friends Saturday afternoon.A.with;inB.with;onC.and;onD.and;at3.What your brother last weekend?A.did;didB.does;doC.did;doD.do;did4.The accident happened a cold winter early morning.A.inB.atC.onD.for5.I’m really . I don’t want to do anything now.A.tiredB.excitedC.relaxedD.surprised6.—How was your weekend?—.A.I was fine,thanksB.It was pretty goodC.They were friendlyD.It was at school7.—did you do yesterday?—I went to the Great Wall with my parents.A.WhatB.WhenC.WhereD.Why8.—Have you ever been to Singapore?—Yes. I there last year with my parents.A.goB.wentC.have beenD.was going9.She likes playing piano and she also likes playing badminton.A.a;aB.the;theC.the;/D./;the10.Lin Shuhao is famous all the basketball fans in China know him.A.too;toB.enough;toC.so;thatD.as;as三、完形填空(20分)Last Sunday was fine;Mike 1 stay at home. He was on a2 to the zoo.A woman with a baby got on the bus. Mike stood up and3 to her,“Come and sit here,please.”He helped the woman4 .“Thanks5 ,good boy,”the woman said.“You’re welcome,”said Mike.The bus went on. Thirty minutes later,it 6 at the zoo. Mike got off the bus and said 7 to the woman. The woman smiled(微笑)at him in a friendly way.Mike went into the zoo. 8 of the people there were students. He9 a lot of animals,and he also took many photos. He spent a happy weekend10 he helped others and had a good time in the zoo.1.A.wasn’t B.isn’t C.doesn’t D.didn’t2.A.way B.zoo C.bus D.bike3.A.spoke B.said C.told D.talked4.A.go for B.get onC.sit downD.lie down5.A.a little B.a lot C.a bit D.alot of6.A.stop B.stops C.stopped D.stoped7.A.hello B.goodbyeC.yesD.good morning8.A.Most B.Each C.Every D.All9.A.met B.looked C.saw D.read10.A.and B.but C.when D.because四、阅读理解(10分)Many people have to work on the weekend. Some people do not mind. Other people think it is terrible. One man thinks working on the weekend can be dangerous. He is Graham Coates. Mr. Coates worked in an officein Brighton,England.On Saturday,May 24,1986,he went to the office to do some work. When he got in the elevator(电梯)to go home,it stopped between the floors. Mr. Coates could not get out of the elevator. He was trapped(困住)!He started to shout,but no one heard him. Then Mr. Coates remembered that it was a holiday in England. No one was going to work until Tuesday!He had to wait until one of his coworkers(同事)came to work and found him.Early on Tuesday morning,the vice president of the company came into work and found the elevator was not working. When the elevator was opened,Mr. Coates came out,cold,weak,and tired. He had been in the elevator for sixty-two hours.Now,Mr. Coates says,“I only use elevators if they have telephones in them.”1.What does Mr. Coates think of working on the weekend?A.It is happy.B.He doesn’t mind.C.It can be dangerous.D.He refuses to do it.2.How long was he in the elevator?A.From Saturday to Monday.B.From Tuesday to Saturday.C.More than three days.D.More than two days.3.Why did Mr. Coates spend so long in the elevator?Which of the following is NOT a reason?A.It was a three-day holiday.B.He had no food or drink.C.The elevator stopped between two floors.D.There was no telephone in the elevator.4.What is the best title(题目)for this story?A.A Busy WeekendB.An Interesting ElevatorC.Trapped in an ElevatorD.Elevator Safety第Ⅱ卷(共50分)五、听力填表(5分)录音中有一篇短文,听短文两遍后,根据所听内容填写下面的表格。
英语单元评价检测及答案(四)
英语单元评价检测及答案(四)(Unit 4)(45分钟100分)第Ⅰ卷(共65分)Ⅰ. 听力(10分)(Ⅰ)录音中有五个句子, 听一遍后, 选择最佳答语。
(5分)1. A. Yes, I do. B. Yes, she did. C. Yes, I did.2. A. Of course you were. B. That sounds good.C. No, I didn’t.3. A. You are Alice, aren’t you?B. Wow, you are great!C. Don’t say so.4. A. Yes, but I’ve changed a lot.B. Yes, I do.C. No, thanks.5. A. In the morning. B. On foot.C. It’s fun.【听力材料】1. Gina, you used to have long hair, didn’t you?2. Did you use to swim in the river?3. Don’t you remember me?4. Did you use to be afraid of insects?5. How did you use to get to school?答案: 1～5. CCAAB(Ⅱ)录音中有一篇短文, 听两遍后, 完成表格信息。
(5分)【听力材料】Hello, I am a middle school student. I have a good friend. His name is David. He has changed a lot. At school, he used to be lazy, but now he works very hard. He becomes one of the top students in our class. He used to hate math class, but now he is interested in it. He used to have long hair, but now he has short hair. As for sports, he used to play ping-pong, but now he is on the soccer team. As for his hobby, he used to collect shells, but now he is interested in collecting stamps.答案: 6. lazy7. long8. short9. soccer 10. collecting stampsⅡ. 单项选择(20分)1. —Why is Wang Tao so popular in your class?—Because he is very.A. silentB. humorousC. proudD. absent【解析】选B。
人教新目标版九年级上Unit4单元评价检测试卷含答案
单元评价检测(四)一、单项选择（共10小题；共10分）1. --- Why is Wang Tao so popular in your class?--- Because he is very .A. silentB. humorousC. proudD. absent2. The famous singer will come and sing for us , so I will go to the concert tonight.A. in personB. take care ofC. look afterD. all the time3. The girl is very shy. She asks others for help when she has problems.A. oftenB. alwaysC. seldomD. usually4. --- How is your grandma?--- She's fine. She used to TV at home after supper. But now she is used to out for a walk.A. watch; goB. watching; goC. watching; goingD. watch; going5. There great changes in our city in the last ten years.A. areB. wereC. hadD. have been6. Even though he is only eight years old, he often helps his mother lots of chores.A. /; withB. /; toC. but; withD. but; to7. It is relaxing me on the bed and listen to music.A. for; lieB. for; to lieC. to; lieD. to; to lie8. --- You used the Internet, didn't you?--- Yes. But now I don't.A. surfB. surfingC. to surfD. to surfing9. They have a daughter and the girl is very good at her school work. They all take pride her.A. 15 years old; withB. 15 years old; inC. 15-year-old; withD. 15-year-old; in10. --- Many students don't know how to stress and become worried.--- I think they should ask their teachers for help.A. deal withB. get onC. care forD. think about二、完形填空（共10小题；共15分）I have two good friends. They are Jim and Alice. We are in the same class. We often 11 time together. They 12 a lot in the last few years.Jim used to like junk food very much. He didn't use to like fruit or vegetables. He didn't use to drink milk. He used to eat a lot of fast food, such as hamburgers, fried food, burnt meat. He used to be very fat and 13 . When we climbed the mountains, he couldn't reach the top. But now he likes to eat much healthy food. He 14 eat junk food any more. For breakfast, he eats eggs and drinks milk. For lunch, he eats vegetables and chicken. And for dinner, he eats noodles, vegetables and some fruit. He 15 eats ice cream. He also takes more exercise now. Every morning, he gets up early and runs on the playground. In the afternoon, he plays soccer with our friends. Now he is much 16 and healthier than before.Alice used to like most subjects, 17 she didn't use to like math. She thought math was too difficult. She couldn't learn it well. She used to be afraid 18 the math test. She couldn't pass it. But now she doesn't mind the math test. With the help of our math teacher, she has become more and more 19 in math. When she has problems, she always goes to our math teacher for help. Last week, she got an A for the math test. How happy she was! You see, If you work as hard as you can, 20 is impossible.11. A. pay B. spend C. take D. cost12. A. change B. changed C. have changed D. are changing13. A. health B. unhealthy C. healthily D. unhealthily14. A. doesn't B. didn't C. don't D. hasn't15. A. often B. usually C. hardly D. hardly never16. A. thin B. thinner C. heavy D. heavier17. A. and B. or C. though D. but18. A. of B. to C. with D. on19. A. interest B. interesting C. to interest D. interested20. A. everything B. something C. nothing D. anything三、阅读理解（共3小题；共6分）Twenty years ago, I drove a taxi for a living. One night I went to pick up a passenger at 2: 30 a.m. When I arrived to collect, I found the building was dark except for a single light in a ground floor window.I walked to the door and knocked. "Just a minute." answered a weak, elderly voice.After a long pause, the door opened. A small woman in her eighties stood before me. By her side was a small suitcase.I took the suitcase to the car, and then returned to help the woman. She took my arm and we walked slowly toward the car.She kept thanking me for my kindness. "It's nothing," I told her. "I just try to treat my passengers the way I would want my mother treated.""Oh, you're such a good man," she said. When we got into the taxi, she gave me an address, and then asked, "Could you drive through downtown?""It's not the shortest way," I answered quickly."Oh, I'm in no hurry," she said. "I'm on the way to hospice(临终医院). I don't have any family left. The doctor says I don't have very long."I quietly reached over and shut off the meter(计价器).For the next two hours, we drove through the city. She showed me the building where she had once worked, the neighborhood where she had lived, and the furniture shop that had once been a ballroom where she had gone dancing as a girl.Sometimes she'd ask me to slow down in front of a particular building and would sit staring into the darkness, saying nothing.At dawn, she suddenly said, "I'm tired. Let's go now."We drove in silence to the address she had given me."How much do I owe you?" she asked."Nothing," I said."You have to make a living," she answered. "Oh, there are other passengers," I answered.Almost without thinking, I bent and gave her a hug. She held onto me tightly. Our hug ended with her remark, "You gave an old woman a little moment of joy."21. The old woman chose to ride through the city in order to .A. show she was familiar with the cityB. see some places for the last timeC. let the driver earn more moneyD. reach the destination on time22. The taxi driver did not charge the old woman because he .A. wanted to do her a favorB. shut off the meter by mistakeC. had received her payment in advanceD. was in a hurry to take other passengers23. What can we learn from the story?A. Giving is always a pleasure.B. People should respect each other.C. An act of kindness can bring people great joy.D. People should learn to appreciate others' concern.四、单词拼写(单句首字母填空)（共5小题；共5分）24. Be careful, please. What you do has an important i on your children.25. --- What are you doing?--- I am studying for the English e .26. Don't talk or laugh loudly. We should keep s in the library.27. It's hard for the famous people to have their p time and room.28. --- What are your school rules?--- We can't be a from classes unless we are ill.五、选词填空(句子选词填空)（共5小题；共5分）29. That is what I want to know.30. --- Why is she unhappy?--- She to meet her friend this morning because of the bad weather.31. Wang Xue is the top student and she always gets good in every test.32. Do you to jump down from high places?33. Are there any differences between English and American English?六、作文（共1小题；共25分）34. 假如你有一位同学叫Huang Qiang，他在你和朋友的帮助下有了很大的进步。
单元评价检测(四)
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单元评价检测（四）第四、五章（45分钟 100分）一、单项选择题（共40分）1.世界上人口增长率最高的大洲是（）A．亚洲 B．欧洲C．南美洲 D．非洲【解析】选D。
非洲人口增长率最高，其次是拉丁美洲，增长最慢的大洲是欧洲。
2.亮亮同学学习“人口与人种”这一节后，对人口的增长、分布、人口问题、密度等方面作了如下归纳，其中错误的一项是（）A.非洲人口自然增长率最高B.人口的增长要与社会、经济发展相适应，与资源、环境相协调C.中纬度近海地区的人口分布多，高寒地区的人口分布稀少D.一个国家人口越多，人口密度就越大【解析】选D。
人口密度=（某地总人口数）/（某地总面积），所以一个国家人口越多，不能说明人口密度就越大，还要考虑该国面积。
3.程老师去日本访问，回国后告诉大家一个现象：在日本，无论是机场工作人员还是宾馆服务人员，年龄都比我们中国的从业人员大很多。
这说明（）A.日本人口增长过快B.日本住房紧张C.日本人口增长过慢D.日本就业压力加重【解析】选C。
本题是考查日本社会老龄化的问题，这显然是由于人口增长过慢引起的问题。
人口增长过慢会带来一系列问题，如劳动力短缺、人口老龄化、国防兵源不足等。
而住房紧张、就业压力加重等是由于人口增长过快带来的问题。
4.下列选项中与其他三个民族不属于同一人种的是（）A.因纽特人B.印第安人C.汉族人D.阿拉伯人【解析】选D。
世界人种是根据体质特征划分的。
因纽特人、印第安人和汉族人虽然分布地区不同，但他们都属于黄色人种；而阿拉伯人主要分布在西亚和北非，属于白色人种。
5.目前，农村人口向城市大规模迁移的现象，主要发生在（）A.发达国家B.发展中国家C.沿海国家D.内陆国家【解析】选B。
发展中国家经济较落后，农村人口数量庞大，城市的各种优越条件吸引着农村人口向城市迁移。
6.（2010·湖南永州）读世界人口分布图，下列人口稀疏区与其原因搭配正确的是（）A.a——雨林地区，气候温热B.b——高山高原，空气稀薄C.c——干旱的荒漠地带D.d——极地地区，气候寒冷【解析】选C。
部编五年级语文下册第四单元评价检测试卷(有答案)
部编五年级语文下册第四单元评价检测试卷（时间：100分钟 满分：100分）一、看拼音，写词语。
(8分）y í h àn sh ěn sh ì c í xi áng du àn li àn ( ) ( ) ( ) ( ) b ēn f ù t è sh ū qi ān m íng ni án l íng ( ) ( ) ( ) ( ) 二、形近字组词。
(8分）拟( ) 摩( ) 遗( ) 殊( )似( ) 魔( ) 溃( ) 珠( ) 沃( ) 吭( ) 祥( ) 搞( ) 妖( ) 坑( ) 详( ) 稿( )三、按要求写词语。
(6分）1．形容人多的四字词语： 、 、2．描写人物惊喜的四字词语： 、 、 3．描写人物忧愁的四字词语： 、 、四、选择下列加点字的正确释义。
(4分） 1．怪．可惜( )。
①很； ②埋； ③妖； ④令人捉摸不透； ⑤惊奇。
2．生．怕( )。
①很； ②没有成熟； ③不熟悉； ④长出。
3．不容．置辩( )。
①盛装； ②外貌； ③允许，准许； ④对人大量。
4．睡的好熟．( )。
①精通； ②了解得透彻； ③程度深； ④果实长成。
乡（镇） 学校 姓名 班级 考号 学号 密 封 线 答 题 线五、选词填空。
(4分）居然果然突然猛然1．平时也没见他怎么用功，这次考试人家( )考了个全年级第一名。
2．在放学的路上，( )下起了瓢泼大雨来，同学们个个都变成了落汤鸡。
3．老师说要和我们一块行动，这不，他( )来了。
4．刚要出发，我( )间想起电视忘记关了，赶紧又一溜小跑返回家里。
六、选出下列句子所使用的描写方法。
(5分）A．动作描写 B．神态描写 C．外貌描写D．心理描写 E．语言描写1.“你骗谁！像你这样当大官的人会没有钱！”拿榴弹的兵士坚不相信。
( ) 2．他走过去，把手中的菜倒进汤里，而后拿起汤勺，在桶里搅了下。
单元评价检测(四)
浮力最小.
二、填空题（本大题共6小题，每空1分，共12分）
9.2009年2月17日，国家环境保护部决定开展长江环保
执法行动，由于长江上游的植被遭到破坏,造成水土严重 流失,河水中的泥沙含量增加,使得河水的密度______, 河水对堤坝的压强_________.(选填“增大”、“减小” 或“不变”)
排开液体的体积不变等)
(3)探究通过电阻的电流跟两端电压的关系(或探究影响 摩擦力大小的因素、探究压力的作用效果与什么因素有 关等)
五、计算题（本大题共2小题，每小题11分，共22分）
19.（2008·通辽中考）如图所示， 水平桌面的正中央放着一个圆形鱼 缸，重为30 N，其底面积为 1 200 cm2.鱼缸内装有0.2 m
13.刘星将一块重2 N的橡皮泥放入水中后橡皮泥立即沉 入水底；他取出橡皮泥将其捏成船状再放入水中，“泥 船”却漂浮在水面上，他是利用了___________的方法 来增大浮力的，此时“泥船”所受的浮力为_______ N. 【解析】将橡皮泥捏成船状放入水中增大了橡皮泥排开
水的体积，根据阿基米德原理F浮=ρ液gV排可知橡皮泥受
液面相平，故选B.
3.下列实验是研究液体内部压强特点的是（
）
【解析】选D.A图是做影响蒸发快慢因素的实验;B图是称 量液体的质量;C图加盐可改变水的密度;D图是用压强计
探究液体内部压强的实验.故选D.
4.两个体积相同的铜块和铝块分别挂在弹簧测力计下,将
它们浸没在水中时,弹簧测力计的示数减小的数
三、简答题（本大题共2小题，每小题5分，共10分） 15.（2009·娄底中考）如图所示是
人们常用的订书机.它的结构设计和
工作原理运用了许多物理知识． 例如：在底部垫了两块橡皮，可以增大订书机与桌面间 的摩擦． 请你按照样例再写出一个：_____________-.
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单元评价检测(四)(Unit 4)(45分钟100分)第Ⅰ卷(共45分)Ⅰ. 听力(10分)(Ⅰ)录音中有五个句子, 听一遍后, 选择与其相符的图片。
(5分)1.2.3.4.5.【听力材料】1. A radio is on the sofa.2. The keys are under the chair.3. The hat is very nice.4. The two desks are in that room.5. You can see a clock in the picture.答案: 1～5. CCABB(Ⅱ)录音中有一篇短文, 听两遍后, 选择最佳答案。
(5分)6. What color is Alice’s table?A. Blue.B. Yellow.C. Green.7. Where’s Alice’s computer game?A. On the bed.B. On the floor.C. Under the table.8. What can you see under the table?A. Three English books.B. A computer game.C. A ball.9. Is the red hat Alice’s?A. Yes, it is.B. No, she isn’t.C. No, it isn’t.10. Wh ere is Alice’s sister?A. On the sofa.B. On the floor.C. On the bed.【听力材料】Look! This is a picture of Alice’s room. You can see some things in it. A nice picture is on the wall. A yellow table and a blue bed are on the floor. You can see three English books on the table. What’s that under the table? It’s a ball. Where’s Alice’s computer game? Oh, it’s on the bed. You can see a red hat on the chair. It’s not Alice’s. It’s her sister’s. Where is Alice’s sister? She is on the sofa.答案: 6～10. BACCAⅡ. 单项选择(10分)1. I have a brother and a sister. names are Jack and Linda.A. HisB. HerC. TheyD. Their【解析】选D。
考查代词辨析。
根据句意“我有一个弟弟和一个妹妹。
”可以判断后面的句意为“他们的名字叫杰克和琳达。
”需用物主代词their。
2. —is my radio?—It’s on the table.A. WhatB. HowC. WhereD. What’s【解析】选C。
考查疑问词辨析。
根据答语可以判断是对“物品位置”进行提问, 需用where。
3. Where my books?A. isB. areC. amD. do【解析】选B。
考查主谓一致。
由于主语books为名词复数, 谓语动词应用are。
4. This is my room and that is my room.A. brother; parents’B. brother; parents’sC. brother’s; parents’D. brother’s; parents’s【解析】选C。
考查名词所有格的用法。
单数名词的所有格直接加“-’s”, 以-s结尾的复数名词的所有格加“’”而不加“-s”。
【归纳拓展】名词所有格在英语中有些名词可以加’s来表示所有关系、所属关系、动作执行者、动作承受者等意义, 带这种词尾的名词形式称为该名词的所有格。
(1)表示有生命的东西(特别是人或高级动物)的名词的所有格, 一般在名词的词尾加’s。
(2)如果复数名词以s结尾, 一般加’。
不以s结尾的复数名词要加’s这种形式来表示。
(3)表示无生命的东西的名词或不能加’s的名词, 通常都采用“of+名词”的结构表示所有关系。
(4)表示有生命的东西的名词也可以用of词组表示所有格, 特别是在名词较长、名词有较多或较长的定语的时候, 常采用of词组表示所有关系。
(5)用and连接的两个或两个以上的名词, 如果一物为两人所共有, 则只在后一个名词后加’s, 如果不是共有的, 则两个名词后都加’s。
(6)双重所有格由“of+名词所有格”构成, 表示部分或带有感情色彩。
5. (2014·湖北武穴思源实验期中)—Where are your parents?—.A. It is in the bedroomB. They are in the bedroomC. He’s in the bedroomD. No, I don’t know【解析】选B。
考查句式结构。
由于问句中your parents为复数, 需用人称代词they回答, 而no不能用于回答特殊疑问句。
故选B。
6. —?—Yes, it is.A. Is my baseball under the bedB. Where’s my chairC. Is he your uncleD. Is she your sister【解析】选A。
考查语境理解。
句意: ——我的棒球在床底下吗? ——是的。
B 选项不符合句意, C和D选项中人称代词的运用不对。
7. There is a map the wall.A. onB. inC. underD. of【解析】选A。
考查介词辨析。
根据句意“在墙上有一张地图”可以判断用介词on。
8. —Is this model plane?—Yes, it’s.A. your; mineB. your; myC. yours; mineD. yours; my【解析】选A。
考查代词辨析。
形容词性物主代词后面跟名词, 而名词性物主代词后面不跟名词, 据此判断用your和mine。
9. (2014·山西农业大学附中期末)—Are these your English books?—Yes, .A. they’reB. they areC. these are【解析】选B。
考查一般疑问句的回答。
根据问句中books可以判断用they回答, 而they are在简略答语中不能省略。
10. His dictionary his radio are on the desk.A. andB. butC. orD. with【解析】选A。
考查连词的用法。
连词and用于连接单词与单词、句子与句子, 根据句意“他的字典和收音机在书桌上。
”及谓语动词are可以判断用连词and。
Ⅲ. 完形填空(10分)A: Hi, Mom!B: Bob, you must go to school now!A: Oh, no! Where1my books, Mom?B: 2are in your schoolbag.A: Where3my schoolbag?B: 4on the sofa.A: Where are5tapes?B: They are on the bookcase.A: Mom, is this6tape player?B: Yes, it is mine. And are these pencils7?A: No, they aren’t mine. They are my8.B: And is this model plane9?A: Yes, it is. Oh, Mom, where’s my hat? I can’t10it.B: Haha, it’s on your head.1. A. am B. is C. are D. do【解析】选C。
考查动词辨析。
询问物品位置用be动词, 根据books可以判断用are。
2. A. It B. It’s C. These D. They【解析】选D。
考查代词用法。
根据books可以判断用they。
3. A. am B. is C. isn’t D. are【解析】选B。
考查主谓一致。
主语为单数, 用is。
4. A. It’s B. It C. They D. They’re【解析】选A。
考查人称代词。
根据问句可以判断用It is的缩写It’s回答。
5. A. mine B. my C. hers D. yours【解析】选B。
考查物主代词的用法。
该选项后面有名词, 需用形容词性物主代词。
6. A. your B. my C. yours D. hers【解析】选A。
考查语境理解及代词辨析。
根据答语“Yes, it is mine. ”可以判断用形容词性物主代词your。
7. A. your B. yours C. my D. mine【解析】选B。
考查语境理解及代词辨析。
根据回答“No, they aren’t mine. ”可以判断用名词性物主代词yours。
8. A. sister B. brotherC. cousinD. sister’s【解析】选D。
考查语境理解。
根据句意“它们是我妹妹的”可以判断用名词所有格。
9. A. his B. he C. hers D. her【解析】选C。
考查语境理解。
根据上下文意思可以判断句意为“这个飞机模型是她的吗? ”可以判断需用名词性物主代词hers。
10. A. find B. found C. lose D. lost【解析】选A。
考查动词辨析。
句意为“我找不到它。
”根据句意判断用find。
Ⅳ. 阅读理解(15分)This is Jack’s room. It’s a bi g room. Some pictures and a clock are on the wall. We can see a desk and a chair in the room. A sofa and a bookcase are also in the room. The desk is between the bed and the bookcase. Jack’s schoolbag and pencil box are on the desk. We can find some pencils, a pen, a ruler in the pencil box. The sofa is next to(挨着)the bookcase. His shoes and ball are under the bed. His jackets and ID card are on the bed. Jack likes his room very much.1. Jack’s room is.A. smallB. bigC. newD. old【解析】选B。