四年级期中试卷(10)
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2020-2021学年人教版小学四年级上册期中考试数学试卷(10)一.选择题(共7小题)1.3:30时,时针和分针构成的角是()角.A.锐角B.直角C.钝角2.一个三角形的两条边分别是6厘米和7厘米,那么第三条边的长度可能是()A.1 厘米B.0.5 厘米C.3 厘米D.13 厘米3.下面()最接近9.A.9.001B.9.01C.9.14.一副三角板可以拼成的最大角是()A.150°B.120°C.180°5.下面说法错误的是()A.最大的七位数与最小的八位数只相差1B.估算78×291的积在24000与25000之间C.射线和直线的长度都是无法测量的6.在一个数的末尾添上一个0,这个数大小()A.不变B.发生变化C.可能变,也可能不变7.在同一平面内,若把两根小棒都摆成和第三根小棒垂直,那么这两根小棒()A.互相平行B.互相垂直C.相交二.填空题(共12小题)8.0.25的计数单位是,它有个这样的计数单位.9.找规律,填一填.(1)6100,6050,6000,,,5850.(2)70200,70400,70600,70800,,.10.当x=3时,11﹣x÷3的值是.11.8.045千米=千米米30.02千克=克8吨70千克=吨240平方分米=平方米12.85002000≈万(保留整数)667000000≈亿(保留整数)4529000=万(保留一位小数)678000000≈亿(精确到十分位)13.把50050500、5050500、500500500、5500500这四个数按从小到大的顺序排列是.14.图中有条直线,条线段,条射线.15.两个因数的积是400,一个因数不变,另一个因数扩大到原来的4倍,则积是.16.∠1+∠2=90°,∠2=47°,那么∠1=.17.用3个“0”和3个“8”组成的最大六位数是,读作,把它四舍五入到万位是;组成的最小的六位数是,读作,把它四舍五入到千位是.18.淘淘有210枚邮票,笑笑的邮票枚数是淘淘的12倍,笑笑有枚邮票,两人一共有枚邮票.19.把673+27×4÷3的运算顺序改变为先求和,再求积,最后求商的形式.则原式变为.三.判断题(共4小题)20.钟面上时针走一大格,分针要走一圈,就是60分.(判断对错)21.一本书约有560000个字,这里的560000是个近似数.(判断对错)22.燕鸥从北极到南极,行程17000千米,如果它每天飞780米,20天能飞到.(判断对错)23.四个相等的角组成一个周角,这四个角一定是直角..(判断对错)四.计算题(共3小题)24.请直接写出下列各小题的结果.1.22×10=2.24×1000=3.44÷10= 6.37÷100=0.06×1000=0.91÷10=25×4=423+98=125×8=9÷100=187﹣99=0.8÷1000=1.25×1000=5.3×100=25.计算下面各题.187+13×20300﹣32×9+4645×[168÷(21﹣13)]26.一个等腰三角形的一个底角是52度,求这个三角形的顶角是多少度?五.应用题(共3小题)27.香山公园的门票价格如下:购票人数1﹣50人51﹣100人100人以上票价25元20元18元四年级同学去香山公园春游,一班有44人,二班有46人,三班有53人.(1)三个班分别购票,各需要多少元?(2)三个班合起来购票,一共需要多少元?28.一辆洒水车,每分钟行200米,洒水车的宽度是10米.洒水车行驶20分钟,能洒多少公顷的地面?29.笑笑看一本258页的故事书,前4天每天看36页,剩下的准备3天看完,平均每天要看多少页?六.解答题(共2小题)30.把下面这些角分别填入适当的圈里.92°34°115°86°15°121°135°90°64°160°39°99°31.有一段宽8米的马路,占地面积是960平方米,为了行走方便,道路的宽增加到16米,长不变.扩宽后,这段马路的面积是多少平方米.参考答案与试题解析一.选择题(共7小题)1.解:因为3时30分时,时针指向3与4之间,分针指向6.钟表12个数字,每相邻两个数字之间的夹角为30°,所以3时30分时分针与时针的夹角是2×30°+15°=75°,是一个锐角.故选:A.2.解:7﹣6<第三边<7+6,所以:1<第三边<13,即另一条边的长应在1~13厘米之间(不包括1厘米和13厘米);可能是2、3、4、5、6、7、8、9、10、11、12厘米;故选:C.3.解:A,9.001与9相差0.001;B,9.01与9相差0.01;C,9.1与9相差0.1;由此可以比较出9.001最接近9.故选:A.4.解:根据题干分析可得:90°+90°=180°答:一副三角板可以拼成的最大角是180°.故选:C.5.解:A:最大的七位数是:9999999;最小的八位数是:10000000;差:10000000﹣9999999=1.本选项正确;B:78×291≈80×300=2400078<80,291<300所以78×291的准确值要小于24000,不是在24000与25000之间,本选项说法错误;C:射线和直线都可以延伸,都是无限长,所以无法度量长度;本选项正确.故选:B.6.解:当这个数是整数时:例如23,在23的末尾添上一个零,就成了230,比23扩大了10倍;当这个数是小数时:例如,2.3,在2.3的末尾添上一个零,就成了2.30,2.30=2.3;所以在一个数的末尾添上一个0,这个数大小可能变,也可能不变;故选:C.7.解:如图所示,,a和b都垂直于c,则a和b平行;故选:A.二.填空题(共12小题)8.解:根据分析可得,0.25的计数单位是0.01,它有25个这样的计数单位.故答案为:0.01,25.9.解:(1)6000﹣50=5950,5950﹣50=5900,即6100,6050,6000,5950,5900,5850.(2)70800+200=71000,71000+200=71200,70200,70400,70600,70800,71000,71200.故答案为:5950,5900,71000,71200.10.解:当x=3时11﹣x÷3=11﹣3÷3=11﹣1=10故答案为:10.11.解:(1)8.045千米=8千米45米(2)30.02千克=30020克(3)8吨70千克=8.07吨(4)240平方分米=2.4平方米.故答案为:8,45,30020,8.07,2.4.12.解:85002000≈8500万(保留整数)667000000≈7亿(保留整数)4529000=452.9万(保留一位小数)678000000≈6.8亿(精确到十分位)故答案为:8500,7,452.9,6.8.13.解:把50050500、5050500、500500500、5500500这四个数按从小到大的顺序排列是5050500<550050<50050500<500500500.故答案为:5050500<550050<50050500<500500500.14.解:观察图形可知,图中共有0条直线,线段有:5×4÷2=10(条),图中共有0条射线,故答案为:0;10;0.15.解:根据积的变化规律可知,两个因数的积是400,一个因数不变,另一个因数扩大到原来的4倍,则积是400×4=1600.故答案为:1600.16.解:90°﹣47°=43°答:∠1=43°.故答案为:43°.17.解:用3个“0”和3个“8”组成的最大六位数是888000,888000读作八十八万八千,888000≈89万;组成最小的六位数是:800088,800088读作八十万零八十八,800088≈800000.故答案为:888000、八十八万八千、89万、800088、八十万零八十八、800000.18.解:210×12=2520(枚)2520+210=2730(枚)答:笑笑有2520枚邮票,两人一共有2730枚邮票.故答案为:2520;2730.19.解:把673+27×4÷3的运算顺序改变为先求和,再求积,最后求商应为:(673+27)×4÷3故答案为:(673+27)×4÷3.三.判断题(共4小题)20.解:钟面上时针走一大格,分针要走一圈,就是60分的说法是正确的;故答案为:√.21.解:一本书约有560000个字,这里的560000是个近似数.此说法正确.故答案为:√.22.解:780×20=15600(米)因为15600<17000,所以20天不能飞到.所以题中说法不正确.故答案为:×.23.解:360°÷4=90°,等于90°的角是直角,所以原题说法正确;故答案为:√.四.计算题(共3小题)24.解:1.22×10=12.22.24×1000=22403.44÷10=0.3446.37÷100=0.06370.06×1000=600.91÷10=0.09125×4=100423+98=125×8=9÷100=187﹣99=0.8÷10001.25×10005.3×100=52110000.0988=0.0008=1250530 25.解:(1)187+13×20=187+260=447(2)300﹣32×9+46=300﹣288+46=12+46=58(3)45×[168÷(21﹣13)]=45×[168÷8]=45×21=94526.解:这个三角形顶角是:180°﹣2×52=180°﹣104°=76°答:这个三角形的顶角是76°.五.应用题(共3小题)27.解:(1)44×25=1100(元);46×25=1150(元);53×20=1060(元);答:三个班分别购票,一班需要1100元、二班需要1150元、三班需要1060元.(2)(44+46+53)×18=143×18=2574(元);答:一共需要2574元.28.解:200×10×20=2000×20=40000(平方米)40000平方米=4公顷答:能洒4公顷的路面.29.解:(258﹣36×4)÷3=114÷3=38(页)答:平均每天还要看38页.六.解答题(共2小题)30.解:分类如下:31.解:960÷8×16=960×2=1920(平方米)答:扩宽后,这段马路的面积是1920平方米.。
2018-2019学年江苏省盐城市第一小学教育集团四年级(上)期中数学试卷一、细心审题,我算.(共26分)1.(8分)直接写出得数.480÷40=24×5=600÷20=1400÷20=630÷90=54÷3=350÷70=120×3=2.(12分)用竖式计算.(打“☆”要验算)405÷82=358÷48=☆738÷51=☆7300÷600=3.(6分)用简便方法计算.720÷45480÷5÷16540÷(6×2)二、用心思考,我能填.(每空1分,共26分)4.(4分)228÷34的商是位数,试商可以把34看作试商,这时初商会偏,要调.5.(2分)要使546÷□5的商是两位数,□里最大填;要使3□3÷37的商末尾有零,□里最小填.6.(4分)在〇里填上“>”、“<”或“=”.6升〇6500毫升720÷24÷3〇720÷(24×3)1500毫升〇15升560﹣(340﹣120)〇560﹣(340+120)7.(4分)在下列横线上填“升”或“毫升”.一瓶矿泉水大约有500 .汽车油箱容量是55 .成年人一天大约能喝水3 水.一瓶墨水的容量大约是50 .8.(2分)根据规律,在横线里画出第30个图形〇□□〇□□〇□□…△◇☆☆△◇☆☆△….9.(1分)3只燕子一星期吃924只害虫,平均每只燕子每天吃多少害虫?10.(2分)条形统计图中每2格的高度表示40人,一格表示人,表示120人需要格.11.(1分)学校图书馆离教室60米,一大捆杂志需要2个小朋友一起搬,3个小朋友轮流把一捆杂志从图书馆搬回教室,平均每个小朋友要搬米.12.(2分)据统计,一个水龙头没有关紧,每分钟往下滴水50毫升.照这样计算,这个水龙头一天能滴水升;一个饮料瓶可以装水2升,水龙头一天漏的水可以装满个这样的饮料瓶.13.(1分)一箱橘子共有50个,任意取出2个称一称,平均每个80克,任意取出20个称一称,平均每个73克,这框橘子大约一共重克.14.(1分)食堂采购一批番茄,由于番茄的价格降到原的一半,这样一共采购了80千克,如果按照原的价格,可以采购千克番茄.15.(2分)小明考试成绩被弄脏了,他的语文分数是分,数学分数是分.三、仔细推敲,我选.(把正确答案的顺序填在括号里,共6分)16.(1分)下面选项中,最接近3600毫升的是()A.3升B.4升C.3500升17.(1分)小明是一名健康的四年级学生,他平时脉搏次数大约是每分钟()次.A.20﹣60 B.140﹣160 C.80﹣10018.(1分)在中添加一个正方体,使它从右边看到的形状不变,有()种不同的摆法.A.3 B.2 C.119.(1分)小明计算480除以一个数时,把480看成了80,要使原的商不变,可以把除数()A.减400 B.加400 C.除以620.(1分)如图的除法竖式中,余数表示()A.2个一B.1个二C.2个十21.(1分)将1升水倒入下面()容器,刚好倒满,且没有剩余.A.B.C.四、动手实践,我会做.(3+10+4=17分)22.(3分)连一连,从不同方向看下面的物体,看到的分别是什么?23.(10分)学校体育组规定四年级学生一分钟的跳绳成绩,在70分以下的等第为“不合格”,70﹣79为“合格”,80﹣89为“良好”,90及以上为“优秀”.下面是四(2)班30名学生一分钟跳绳的成绩记录.(单位:下)(1)整理上面的数据,填写统计表.四(2)班30名学生一份种跳绳成绩统计图(3)小敏的成绩在班级中排在第5,小青的成绩排在第16,他们应该获得什么等第?在□里打“√”.小敏:不合格□合格□良好□优秀□小青:不合格□合格□良好□优秀□24.(4分)先仔细观察,再直接填出商.)÷☆=.五、走进生活,我能行.(第25题3分,第30题6分,其余每题4分,共25分)25.(3分)学校篮球场的面积是420平方米.它的长是28米,宽是多少米?(列方程解答)26.(6分)大壶容量为1升,大壶盛满水倒入小杯,可以倒满11杯还剩65毫升,每个小杯的容量是多少毫升?27.(4分)学校秋季趣味运动会,四年级参加“群蛙争雄”项目比赛的共有432人,每场比赛4组,每组12人.一共需要比多少场?28.(4分)学校小明家图书馆小明从家到学校用了12分钟,平均每分钟走多少米?他用同样的速度,从家走到图书馆要走几分钟?29.(4分)“夫妻肺片”是四川的一道名菜,主要选料有牛肉、牛肚和牛百叶,它们每千克的单价分别为18元,26元、25元.把这三样选取同样重量混合制成“夫妻肺片”,每千克应售价多少元?30.(4分)学校食堂2个星期共用了224升食用油.(1)平均每天用多少升油?(2)照这样计算,把下表填写完整.2018-2019学年江苏省盐城市第一小学教育集团四年级(上)期中数学试卷参考答案与试题解析一、细心审题,我算.(共26分)1.【解答】解:480÷40=12 24×5=120 600÷20=30 1400÷20=70 630÷90=7 54÷3=18 350÷70=5 120×3=360 2.【解答】解:405÷82=4 (77)358÷48=7 (22)☆738÷51=14 (24)验算:7300÷600=12 (100)验算:3.【解答】解:(1)720÷45=720÷(9×5)=720÷9÷5=80÷5=16(2)480÷5÷16=480÷(5×16)=480÷80=6(3)540÷(6×2)=540÷6÷2=90÷2=45二、用心思考,我能填.(每空1分,共26分)4.【解答】解:228÷34,因为被除数的前两位是27,比除数小,所以商是一位数;试商时,可以把34看做30试商,这时初商偏大,要改小.故答案为:一;30;大;小.5.【解答】解:(1)要使546÷□5的商是两位数,□中可填1,2,3,4,最大填4.(2)先用前两位数字3□除以37,商1,写在十位上,要使末尾有一个0,则余数和个位上的组成的数不够除,即□里面可以填7、8、9,最小填7.故答案为:4,7.6.【解答】解:(1)6升<6500毫升(2)720÷24÷3=720÷(24×3)(3)1500毫升<15升(4)560﹣(340﹣120)>560﹣(340+120).故答案为:<,=,<,>.7.【解答】解:一瓶矿泉水大约有500 毫升.汽车油箱容量是55 升.成年人一天大约能喝水3 升水.一瓶墨水的容量大约是50 毫升.故答案为:毫升,升,升,毫升.8.【解答】解:(1)30÷3=10(组)没有余数,所以第30个图形是正方形;(2)30÷4=7(组)…2(个)余数是2,第二个图形是菱形,所以第30个图形是菱形.故答案为:□,◇.9.【解答】解:924÷7÷3=132÷3=44(只)答:平均每只燕子每天吃44只害虫.10.【解答】解:40÷2=20(人)120÷20=6(格)答:一格表示20人,表示120人需要6格.故答案为:20;6.11.【解答】解:60×2÷3=120÷3=40(米)答:平均每个小朋友要搬40米.故答案为:40.12.【解答】解:50÷1000×60×24=0.05×60×24=3×24=72(升)72÷2=36(个)答:这个水龙头一天能滴水72升;一个饮料瓶可以装水2升,水龙头一天漏的水可以装满36个这样的饮料瓶.故答案为:72、36.13.【解答】解:73×50≈70×50=3500(克)答:这框橘子大约一共重3500克.故答案为:3500.14.【解答】解:80÷2=40(千克)答:如果按照原的价格,可以采购40千克番茄.故答案为:40.15.【解答】解:因为92×3=276(分),7+3=10,所以语文成绩的个位是:6﹣0=6,即语文是86分,276﹣93﹣86=97(分)答:小明考试成绩被弄脏了,他的语文分数是86分,数学分数是97分.故答案为:86,97.三、仔细推敲,我选.(把正确答案的顺序填在括号里,共6分)16.【解答】解:3升=3000毫升,3600毫升﹣3000毫米=600毫升4升=4000毫升,4000毫升﹣3600毫米=400毫升3500升=3500000毫升,不用计算即可看出与3600毫升相差甚多600>400答:最接近3600毫升是4升.故选:B.17.【解答】解:小明是一名健康的四年级学生,他平时脉搏次数大约是每分钟80~100次.故选:C.18.【解答】解:在中添加一个正方体,使它从右边看到的形状不变,即增添的正方体可以在左边,和第一层并摆或和第二层并摆,也可以在右边,摆在底层,故有3种摆法,故选:A.19.【解答】解:根据商不变的性质可知,计算480除以一个数时,把480看成了80,即被除数除以6了,要使原的商不变,可以把除数除以6.故选:C.20.【解答】解:根据整数除法的计算方法,对着被除数十位上的2表示2个十.所以,余数表示2个十.故选:C.21.【解答】解:1×1×1=1(立方分米)1立方分米=1升即将1升水倒入下面第3个容器,刚好倒满,且没有剩余.故选:C.四、动手实践,我会做.(3+10+4=17分)22.【解答】解:23.【解答】解:(1)各成绩段人数如下:70分以下2人,70﹣79分7人,80﹣89分12人,90分及以上9人填表如下:(3)小敏的成绩在班级中排在第5,在90及以上成绩段,为优秀;小青的成绩排在第16,在80﹣89成绩段,为良好.小敏:不合格□合格□良好□优秀小青:不合格□合格□良好优秀□.24.【解答】解:故答案为:80,4,1,60.五、走进生活,我能行.(第25题3分,第30题6分,其余每题4分,共25分)25.【解答】解:设宽是米,28=420,28÷28=420÷28,=15,答:宽是15米.26.【解答】解:1升=1000毫升(1000﹣65)÷11=935÷11=85(毫升)答:每个小杯的容量是85毫升.27.【解答】解:12×4=48(人)432÷48=9(场)答:一共需要比9场.28.【解答】解:816÷12=68(米)952÷68=14(分钟)答:小明从家到学校用了12分钟,平均每分钟走68米,他用同样的速度,从家走到图书馆要走14分钟.29.【解答】解:假设三种选料各需1千克,则:(18+26+25)÷(1+1+1),=69÷3,=23(元);答:每千克应售价23元.30.【解答】解:(1)224÷(7×2)=224÷14=16(升)答:平均每天用16升油;(2)480÷16=30(天)16×45=720(升)864÷16=54(天)填表如下:。
四年级上册语文期中考试试卷一、汉字听写(共10分)1. 请根据听到的词语,准确无误地写出相应的汉字。
- 春风- 秋雨- 落叶- 暖阳- 碧波- 翠竹- 蓝天- 红花- 绿草- 清泉二、词语填空(共10分)2. 请在下列句子中填入合适的词语。
- ()的田野上,金黄的麦子随风起伏。
- 孩子们在()的草地上快乐地奔跑。
- 秋天,()的果实挂满了枝头。
- 清晨,()的露珠在叶子上闪闪发光。
- 夜空中,()的星星像宝石一样璀璨。
三、句子改错(共10分)3. 请找出下列句子中的错别字,并在括号中写出正确的字。
- 我们去公园玩,看到了很多美丽的花辨。
()- 老师今天穿了一件蓝色的新群子。
()- 秋天到了,树叶变黄了,一片片地落了下来。
()- 我最喜欢的季节是春天,因为春天的风很温暖。
()- 我昨天读了一本有趣的书,书的名字叫《小王子》。
()四、阅读理解(共30分)4. 阅读下面的短文,回答问题。
秋天的公园秋天到了,公园里的景色变得格外美丽。
金黄的树叶轻轻地飘落,像蝴蝶在空中飞舞。
孩子们在公园里追逐嬉戏,他们的笑声在空气中回荡。
公园的一角,老人们悠闲地打着太极,享受着秋天的宁静。
秋天的公园,是一幅动人的画卷,让人流连忘返。
(1)短文中描述了哪些秋天的景象?(5分)(2)孩子们在公园里做了什么?(5分)(3)老人们在公园里做了什么?(5分)(4)短文表达了作者怎样的情感?(5分)(5)你认为秋天的公园还有哪些美丽的景象?(5分)五、作文(共40分)5. 请以“我最喜欢的季节”为题,写一篇不少于300字的作文。
提示:可以描述你喜欢的季节的特点,以及在这个季节里你喜欢做的事情。
注意语句通顺,表达清晰。
请同学们认真审题,仔细作答,保持卷面整洁。
祝你取得优异的成绩!。
2023-2024学年度第一学期期中试卷四年级语文(共100分)题号一二三四五卷面5分总分(一) (二)(三)得分阅卷人一、基础知识部分(共25分)(一)选择正确答案的序号。
(共10分)1. 下列词语中加点字读音完全正确..的一组是()。
A.薄.雾bó昂.首áng霎.时shàB.漆.黑xī蛟.龙jiāo蝙.蝠biǎnC.潜.入qiǎn惩.罚chéng系.绳子jì2. 下列词语字形完全正确..的一组是()。
A.严厉幼想无可奈何B.既使空隙山崩地裂C.搏斗均匀精疲力竭3. 下面词语中加点字的意思解释错误..的是()A.可怜..九月初三夜(可爱) B.炎帝之少女..(小女儿)C.梅须逊.雪三分白(谦让)4.“轻而清的东西缓缓上升变成了天重而浊的东西慢慢下降变成了地”这句话中的标点符号标注正确..的是()A ,,,;,。
B ,,。
,,。
C,,,,,。
5.下面句子运用的修辞与其他两项不同的是()A.在很久以前,天和地还没有分开,宇宙混沌一片,像个大鸡蛋。
得分B.沟水汩汩,很满意地响着。
C.稻田像一块月光镀亮的银毯。
(二)判断题。
正确的打“√”,错误的打“×”。
(共5分,每小题1分)6.《呼风唤雨的世纪》主要介绍了20世纪一百年间的科学技术发展历程。
( )7.《暮江吟》、《题西林壁》和《雪梅》这三首诗都是宋代诗人写的。
( )8.《精卫填海》选自于《山海经·北山经》。
( )9.阅读的时候,我们可以试着从不同角度提出问题,让自己的思考更加全面和深入,加深对文章的理解。
( )10.《爬山虎的脚》通过介绍爬山虎生长的地方、爬山虎的叶子、脚的形状和特点以及它是如何一脚一脚往上爬的,表达了作者对爬山虎的喜爱之情。
( )(三)读拼音,写出合适的汉字。
(10分)11.夜色zhú jiàn( )笼罩了大地,妈妈qiān( )着我的手,沿着é luǎn( )石铺的小路,huǎn( )慢地穿过dào( )田,微风拂过,内心欢yú( ),shū shì( )极了。
小学四年级语文期中考试试卷一、汉字书写(共10分)1. 请正确书写下列汉字,并注意笔顺。
(每字1分)(1)春(2)花(3)秋(4)月(5)夜2. 请将下列词语中的错别字找出来,并在括号内写出正确的字。
(每题2分)(1)清彻()(2)坚苦()(3)精采()(4)安祥()二、词语运用(共20分)1. 请从下列词语中选择恰当的词语填空。
(每题2分)(1)小明在运动会上表现得非常(出色/出色),赢得了大家的称赞。
(2)老师经常教导我们要(诚实/诚实),不要说谎。
(3)春天到了,公园里的花(开/开)得五彩缤纷,吸引了许多游客。
2. 请根据句意,选择正确的词语填空。
(每题2分)(1)他虽然年纪小,但是非常(聪明/聪明),学习成绩一直很好。
(2)这个故事(简单/简单)易懂,孩子们都很喜欢听。
(3)他做事总是(认真/认真),从不马虎。
三、句子理解(共20分)1. 请根据所给句子,选择正确的解释。
(每题2分)(1)“他今天看起来很高兴。
”这句话的意思是:A. 他今天真的很高兴。
B. 他今天看起来不高兴。
C. 他今天看起来不高兴,但实际上很高兴。
(2)“请不要在教室里大声喧哗。
”这句话的意思是:A. 可以在教室里大声喧哗。
B. 不要在教室里大声喧哗。
C. 只能在教室里大声喧哗。
2. 请将下列句子改写成反问句。
(每题2分)(1)我们应该爱护环境。
(2)他今天没有来上课。
四、阅读理解(共30分)阅读下面的短文,回答问题。
春天来了,万物复苏。
小草从土里探出头来,好奇地打量着这个世界。
花儿也不甘示弱,竞相开放,红的、黄的、紫的,五彩缤纷。
小鸟在枝头欢快地歌唱,好像在庆祝春天的到来。
孩子们脱下厚重的冬装,穿上轻便的春装,跑到户外去玩耍。
他们放风筝、捉迷藏、跳绳,玩得不亦乐乎。
1. 短文中提到了哪些春天的景象?(5分)2. 孩子们在春天里做了哪些活动?(5分)3. 短文表达了作者怎样的情感?(10分)4. 请用自己的话描述一下你眼中的春天。
四年级下册语文期中试卷〔精选10篇〕篇1:四年级下册语文期中试卷一、看拼音,写词语(6分)tàsuìcuīcùtáozuìjiāozàoshuāijiéxuànlì二、锦上添花(把以下词语补充完好)(12分)篇2:四年级语文下册期中试卷关于四年级语文下册期中试卷一、看拼音写词语(10分)bǎntúgōngjìngwéifànjūnyúncuīcùjǔjiànxiānrushènzhngxúnguīdǎojǔ( )( )( )二、给加点字选择正确的读音,在正确读音上打√(4分)薄壳(bóbáo)模拟(mómú)堵塞(sèsāi)纤(qiānxiān)弱呕吐(tǔtù)半晌(shǎngxiǎng)给予(jǐgěi)鲜为人知(xiānxiǎn)三、给以下画横线的字选择正确的释义,将序号填写在后面的括号里。
(4分)1、鲜为人知:A、新颖B、鲜美C、鲜明D、少2、漫山遍野:A、水满外溢B、到处都是C、不受约束D、广阔3、微缺乏道:A、细小细微B、计量单位C、精深微妙D、衰落4、无所不晓:A、天亮时分B、知道C、使人知道四、选择适宜的成语填在下面的横线上。
(7分)提供词语:张冠李戴囫囵吞枣处变不惊不甚了了寻根问底浅尝辄止浮光掠影天道酬勤熟能生巧含辛茹苦1、小明在阅读《三国演义》时一目十行,。
结果,对书中的内容,在答复教师有关“三国”的问题时总是。
2、在学习上,我们遇到问题时就要,即便遇到掌握的内容也不能,还应该勤加练习,这样就能。
有道是“”。
上天就是偏爱于勤奋的人。
五、句子工厂。
(5分)1、如今我该不是最弱小的了吧?(换个说法,意思不变。
)__________________________________________________ _____2.他的意见根本是完全正确的。
徐州“PEP”2024年10版小学四年级上册英语第三单元期中试卷考试时间:100分钟(总分:140)考试人:_________题号一二三总分得分评级介绍:本试卷涵盖第三单元核心词汇与语法,难度适中,重点考查学生的听说读写能力及日常对话理解。
旨在巩固基础知识,提升综合运用能力。
一、(选择题)总分:45分(2分/题)1、What do we call the process where plants release water vapor?中文解释:我们称植物释放水蒸气的过程为?A, TranspirationB, CondensationC, Evaporation2、Which plant is known for its sweet fruit?中文解释:哪种植物以其甜美的水果而闻名?A, OliveB, AppleC, Cactus3、What is the sound a cow makes?中文解释:牛发出什么声音?A, MeowB, MooC, Bark4、What do bees make?A, MilkB, HoneyC, SilkD, Bread5、What is the English word for "沙发"?A, ChairB, CouchC, TableD, Bed6、Where does the sun rise?A, NorthB, SouthC, EastD, West7、情景交际。
放学了,同学的橡皮落在桌子上,你要提醒他,你会说:________。
A, Hello, Li Ming!B,Your eraser.8、What color is a lemon?A, YellowB, GreenC, Orange9、What is the name of the fruit that is green on the outside and pink on the inside? A, KiwiB, WatermelonC, Grapefruit10、What do you call a large body of saltwater?A, RiverB, LakeC, OceanD, Pond11、What do we call a plant that grows in shallow water?我们称生长在浅水中的植物为?A, Marsh plantB, Aquatic plantC, Terrestrial plantD, All of the above12、What is the opposite of "old"?中文解释:"老"的反义词是什么?A, YoungB, AncientC, Elderly13、What is the English word for "植物绿色经济"?A, Plant green economyB, Agricultural economyC, Environmental economyD, Ecological economy14、Which type of tree changes color in autumn?哪种树在秋天会变色?A, EvergreenB, DeciduousC, PalmD, Fruit tree15、What is the English translation of "植物生活方式"?A, Plant lifestyleB, Agricultural lifestyleC, Environmental lifestyleD, Ecological lifestyle16、What does "大雁" mean in English?A, SwanB, GooseC, DuckD, Heron17、What color are most bananas before they ripen?A, YellowB, GreenC, RedD, Brown18、What is the name of the fairy tale character who kissed a frog? A, CinderellaB, The Princess and the FrogC, Snow White19、Which plant is known for its long lifespan?哪种植物以其长寿命而闻名?A, SequoiaB, MapleC, OakD, Pine20、Which sport uses a ball and a hoop?A, SoccerB, BasketballC, Baseball二、(听力题)总分:50分(2分/题)1、What is the name of the fairy tale character who lost her glass slipper? A, Snow WhiteB, Sleeping BeautyC, CinderellaD, Belle2、听力填空题:She ___ (not/attenD, the workshop last month.3、听力填空题:I ___ (help) clean the house on weekends.4、What is the name of the process plants use to grow?A, FertilizationB, PhotosynthesisC, PollinationD, Germination5、Which one is a vegetable?A, AppleB, CarrotC, BananaD, Grape6、听力填空题:I ___ (take) my dog for a walk every evening.7、听力填空题:She ___ (not/attenD, the workshop last week.8、听力填空题:He ___ (not/like) to ride the bus.9、听力填空题:He ___ (not/like) to drink soda.10、What is 15 minus 7?A, 6B, 7C, 8D, 911、Which fruit is yellow and curved?A, OrangeB, AppleC, BananaD, Grape12、What is the name of the large structure that allows vehicles to cross a river? A, TunnelB, BridgeC, DamD, Road13、听力填空题:We ___ (go) to the zoo every summer.14、What do you call a small, round fruit that is often red or green?A, OrangeB, GrapeC, AppleD, Banana15、What do you call the time when the sun goes down?A, MorningB, NoonC, EveningD, Night16、听力填空题:They ___ (not/eat) dinner at home last night.17、听力填空题:I ___ (take) care of my pet rabbit.18、听力填空题:They ___ (not/eat) lunch at school today.19、What do we call a story that teaches a lesson?A, NovelB, FableC, BiographyD, Mystery20、听力填空题:She ___ (not/like) going out at night.三、(填空题\连线题)总分:30分(1分/题)1、填空题:A ______ (农业教育活动) can raise awareness.2、She ___ a great time at the concert.A, hasB, haveC, hadD, having3、填空题:A raccoon is known for its ________ (灵巧).4、关于"人物"沟通用语填空题:The _____ produces reports and analyses on data findings. (data analyst)5、I enjoy _____ with my friends.A, playB, playsC, playingD, to play6、The children are _____ in the garden.A, playB, playsC, playingD, to play7、填空题:The ________ (蜥蜴) can change its color for camouflage.8、填空题:A ______ (生态监测工具) helps track health.9、填空题:The ______ (植物应用) can vary from food to medicine.10、填空题:The ________ (狼) hunts in packs for better success.。
2021学年冀教版四年级(上)期中数学试卷(10)一、填空.(每空1分;共30分)1. 三千四百零五万零六百写作________,它万位上有________个万,省略万位后面的尾数约是________万。
2. 392008009读作________,它是一个________位数,其中“3”在________位上,表示________,“2”在________位上,表示________,“8”在________位上,表示________.3. 一个数由6个百万,5个百和3个十组成,这个数是________位数,写作________.4. 直线上两点间的一段叫做________,线段有________个端点,射线有________个端点,直线________端点。
5. 一个周角=________个平角=________个直角。
6. 从一点引出两条________所组成的图形叫做角。
7. 横线里最大能填几。
39×________<240________×60<350.8. 253÷27商是________位数,370÷36商是________位数。
9. 5□6÷57填________数时,商是两位数,填________数时,商是一位数。
10. 在计算器中,CE键是________键。
11. 计算814÷19时,可以把19看作________来试商。
12. 被除数、除数同时扩大8倍,商________.13. 被除数不变,除数缩小2倍,商________.二、小法官巧判断.(正确的打“√”,错误的打“×”)(5分)15∘的角在放大10倍的放大镜下看变为150∘的角了。
________ (判断对错)两个数相乘,如果要想使它们的积扩大2倍,那么这两个因数可以其中一个因数扩大2倍,另一个缩小2倍。
________.(判断对错)线段比射线短,射线比直线短。
2024年山东省济南市英语小学四年级上学期期中复习试卷及答案指导一、听力部分(本大题有12小题,每小题2分,共24分)1、听力材料:A. Hello, how are you? I’m fine, thank you. And you?B. Hi, I’m fine too. What’s your name?C. Good morning, my name is Tom.问题:What does the second person say?A. Hello, how are you?B. Hi, I’m fine too. What’s your name?C. Good morning, my name is Tom.答案:B解析:本题考查对日常问候和自我介绍的听力理解。
根据听力材料,第二个人回答了第一个人的问候,并表示自己也很好,并询问对方的名字。
因此,正确答案是B。
2、听力材料:A. I have a cat. It’s white and fluffy.B. My dog is brown and very cute.C. I have a rabbit. It’s small and cute.问题:Which animal does the second person have?A. A catB. A dogC. A rabbit答案:B解析:本题考查对动物描述的听力理解。
根据听力材料,第二个人描述了自己的宠物狗,说它棕色且非常可爱。
因此,正确答案是B。
3、What is the weather like in the picture?A. SunnyB. RainyC. SnowyAnswer: BExplanation: The picture shows a child holding an umbrella and looking at the sky with a sad expression, indicating that it is raining.4、How does the teacher feel about the students’ performance in the math test?A. HappyB. SadC. AngryAnswer: AExplanation: The teacher is smiling and clapping her hands, which indicates she is happy with the students’ performance in the math test.5、Listen to the following dialogue and choose the correct answer.A. What are they discussing?B. Where are they going?C. How is the weather?You will hear:W: It’s a sunny day, isn’t it?M: Yes, but it’s a bit too hot for me.A. B. C.Answer: BExplanation: The dialogue is about the weather, so the correct answer is “Where are they going?” which indirectly refers to the current weather conditions.6、Listen to the following question and select the most appropriate response.Question: How old is the girl in the picture?You will hear:M: Look at the picture. The girl in the middle is eight years old.W: Oh, I see. She’s mu ch younger than me.A. She is older than you.B. She is younger than you.C. She is the same age as you.Answer: BExplanation: The woman says, “She’s much younger than me,” indicating that the girl in the picture is younger than the woman. Therefore, the correct response is “She is younger than you.”7、Listen to the conversation between two friends and choose the correct answer.A. They are playing football.B. They are doing their homework.C. They are watching a movie.Answer: BExplanation: In the conversation, one friend says, “Hey, have you finished your math homework?” and the other friend replies, “Yes, I just finished it. How about you?” This indicates that they are doing their homework.8、Listen to the following question and choose the correct answer.Question: What is the weather like today?A. It is sunny.B. It is cloudy.C. It is rainy.Answer: BExplanation: The speaker in the recording says, “Oh, look outside. It’s really cloudy today. I think it might rain soon.” This tells us that the weather is cloudy.9.Listen to the dialogue and answer the question.A. What is the weather like today?B. What is the boy doing?C. What time is it now?Explanation: The dialogue is about a boy playing soccer in the park. The first part of the dialogue mentions the weather, but the question focuses on what the boy is doing. The answer can be found in the second part of the dialogue where the boy says, “I’m playing soccer right now.”10.Listen to the story and answer the question.A. Who is the main character in the story?B. What is the story about?C. What happens at the end of the story?Answer: BExplanation: The story is about a young girl named Lily who wants to learn to ride a bike. The first part of the story introduces the main character and the setting. The question asks about the content of the story, which is the main focus of the narrative. The answer can be found in the body of the story where Lily practices riding her bike and eventually succeeds. The ending of the story is about Lily’s achievement, but that is not the main content of the question.11.What are the two subjects that the students are discussing in the conversation?A. Math and HistoryB. Science and EnglishC. Music and Physical EducationD. Art and GeographyExplanation: In the conversation, the students are talking about their favorite subjects, which are Science and English. Therefore, option B is the correct answer.12.Listen to the following sentence and choose the correct word to complete it.“Her cat is very_______and often plays with me.”A. quietB. noisyC. smartD. friendlyAnswer: DExplanation: The correct word to complete the sentence is “friendly” because it is the most appropriate adjective to describe a cat that often plays with someone. Options A, B, and C do not fit the context of the sentence.二、选择题(本大题有12小题,每小题2分,共24分)1、Choose the correct word to complete the sentence.The cat is very_______and always keeps itself clean.A)cleverB)lazyC)activeAnswer: D) cleanExplanation: The sentence is describing a cat that is always clean. The word “clean” fits the context, indicating that the cat is tidy and well-groomed.2、Select the sentence that uses the correct past tense form of the verb.We_______to the park yesterday.A)wentB)goC)goneD)goesAnswer: A) wentExplanation: The sentence is talking about an action that happened in the past. The correct past tense form of the verb “go” is “went.” Therefore, option A is the correct answer.3、What is the capital city of France?A)LondonB)ParisC)RomeD)BerlinAnswer: B) ParisExplanation: Paris is the capital city of France. London is the capital of the United Kingdom, Rome is the capital of Italy, and Berlin is the capital of Germany.4、Which of the following is a type of fruit?B)TomatoC)AppleD)PotatoAnswer: C) AppleExplanation: An apple is a type of fruit. Carrot and tomato are vegetables, while potato is a root vegetable.5.What is the capital city of France?A. LondonB. ParisC. RomeD. MadridAnswer: BExplanation: Paris is the capital city of France. London is the capital of the United Kingdom, Rome is the capital of Italy, and Madrid is the capital of Spain.6.Which of the following words means “to study”?A. WriteB. ReadC. LearnD. SpeakAnswer: CE xplanation: The word “learn” means to study or gain knowledge. “Write” means to put words or symbols on a surface, “read” means to interpret wordsthat are printed or written, and “speak” means to communicate using spoken words.7、What is the correct past tense form of the verb “do”?A) doB) doesC) didD) doneAnswer: C) didExplanation: The past tense form of the verb “do” is “did.” This is used to describe actions that were completed in the past.8、Choose the word that does not belong in the following list of plural nouns: cat, dog, fish, sheep.A)catB)dogC)fishD)sheepAnswer: A) catExplanation: “Cat” is the singular form of the word. The other words in the list (dog, fish, sheep) are already in their plural forms. Therefore, “cat” is the word that does not belong.9、Choose the correct word to complete the sentence.The cat is very __________; it always wants to be the center of attention.A)silentB)loudC)shyD)smartAnswer: B) loudExplanation: The sentence implies that the cat is attention-seeking, which is best described by the word “loud.” Silent (A) means quiet, shy (C) means not willing to be noticed, and smart (D) means intelligent, none of which fit the context as well as “loud” does.10、Select the sentence that follows correctly in the sequence.A)We went to the park.B)It was a sunny day.C)We played soccer.D)We had a picnic.Answer: B) It was a sunny day.Explanation: The sequence of events usually starts with setting the scene, which in this case is the weather. Therefore, the correct sequence would be: It was a sunny day (B), so we went to the park (A), played soccer (C), and hada picnic (D).11.What is the capital city of France?A. LondonB. ParisC. RomeD. BerlinAnswer: B. ParisExplanation: The capital city of France is Paris. London is the capital of the United Kingdom, Rome is the capital of Italy, and Berlin is the capital of Germany.12.Which of the following is a type of fruit?A. AppleB. TomatoC. CarrotD. PotatoAnswer: A. AppleExplanation: An apple is a type of fruit. Tomatoes are actually a type of vegetable, as are carrots and potatoes. Fruits are typically sweet and come from plants, while vegetables are usually savory and can come from various parts of plants, including roots, leaves, and stems.三、完型填空(10分)Cloze Test:Read the passage carefully and choose the best word to fill in each blank from the options given below. Write your answers on the lines provided.It was a sunny Saturday morning. Lucy and her family decided to go to the park. They packed some food and drinks, and 1 their bicycles. The park was not far from their home, so it only took them about ten minutes to get there. Whenthey arrived, they found a nice spot under a big tree. Lucy’s dad spread out a blanket, and they all sat down to enjoy their picnic. After eating, Lucy and her brother played frisbee, while their parents read books. It was such a 2day that everyone felt happy. In the afternoon, they went for a walk around the lake. They saw ducks swimming and heard birds singing. Before going home, they visited the playground, where Lucy made 3friends. She couldn’t wait to come back again next weekend. On their way back, Lucy’s mom suggested stopping by the ice cream shop, which made the day even more 4. They all agreed it had been a wonderful 5.Questions:1.____A. rodeB. rideC. riding2.____A. beautifulB. beautifullyC. beauty3.____A. newB. newlyC. newer4.____A. specialB. speciallyC. specialty5.____A. timeB. timesC. timingAnswers:1.A. rode2.A. beautiful3.A. new4.A. special5.A. timeThis exercise is aimed at testing the students’ understanding of context and their ability to choose the correct form of words to complete sentences.四、阅读理解(26分)Reading ComprehensionThe following passage is followed by some questions. Read the passage carefully and choose the best answer to each question.Passage:In a small village, there lived a kind old man named Mr. Green. He was known for his love for animals and his willingness to help others. Every morning, Mr. Green would walk to the nearby river to fish. He would catch many fish and then give them to the villagers, especially those who were poor or elderly.One day, a young boy named Tim came to Mr. Green and asked, “Mr.Green, why do you always give away your fish? Why don’t you keep them for yourself?”Mr. Green smiled and replied, “Timmy, I catch fish not only for my own food but also to share with those who need them more. It is important to help others, especially when the y are in need.”Tim was amazed by Mr. Green’s kindness and decided to follow his example. He started helping others in the village by collecting food and clothes for those who were less fortunate.Questions:1.What was Mr.Green known for in the village?A. His love for animalsB. His willingness to help othersC. His fishing skillsD. His ability to catch the biggest fish2.Why did Mr. Green give away his fish?A. He wanted to catch more fishB. He didn’t like the taste of fishC. He wanted to share them with the villagersD. He was too generous3.What did Tim decide to do after meeting Mr. Green?A. He started fishing more oftenB. He wanted to become a fishermanC. He followed Mr. Green’s exampleD. He decided to stop eating fishAnswers:1.B2.C3.C五、写作题(16分)Writing Question (30 points)Instructions: Write a short paragraph about your favorite season. Describe what you like to do during this season, the weather, and why it is your favorite. Use at least three descriptive adjectives and two action verbs in your paragraph. Your paragraph should be between 5 and 8 sentences long.Example Response:My favorite season is summer because it is bright, warm, and sunny. During the summer, I love to swim in the cool pool water and play soccer with my friends outside. The days are long, which gives us plenty of time to enjoy the outdoors.I also enjoy eating delicious ice cream on hot days. Summer is a time wheneverything feels more relaxed and joyful, and that’s why it is my favorite season.Analysis of Key Points:1.Descriptive Adjectives: The student has used the adjectives ‘bright’, ‘warm’, ‘sunny’,‘cool’, ‘delicious’, and ‘relaxed’ to vividly describe the characteristics of the season and personal experiences.2.Action Verbs: The verbs ‘swim’ and ‘play’ are used to show activities enjoyed during the summer.3.Structure: The paragraph starts with an introduction of the favorite season, followed by details about activities and feelings associated with it, and concludes with a summary statement.4.Sentence Length and Complexity: The sentences vary in length and complexity, making the paragraph engaging and easy to read.5.Personal Touch: The writer includes personal preferences and experiences, which make the writing more relatable and interesting.When writing your own paragraph, remember to choose specific examples and use a variety of words to express your thoughts clearly. Proofread your work to ensure correct spelling and grammar.This question and example are designed to encourage students to think creatively and to practice using rich vocabulary to express their ideas effectively.。
一、填空题。
(21分)
1. 326÷52的商是( )位数,试商时可以把52看作( )来试商,这时商可能会偏( )。
2.7口8÷76的商是两位数,口里可填的数有( ),如果商是一位数,口里可填的数有( )。
3. ( ) 秒=60分480000厘米=( )米
168时=( )天 5300平方厘米 =()平方分米
4.周长是16分米的正方形,如果它的边长扩大2倍,那么它的周长是( )分米,面积是( )平方分米。
5.从756里连续减去( )个21,结果得零。
7.明明在计算除法时,不小心将除数35写成了85,结果商是30,余数是14,正确的商是( ),余数是( )。
8. 3口1÷35,要使商的最高位是十位,口里能填( )。
9.小涵有189枚1元的硬币,把这些硬币换成20元一张的纸币,最多能换( )张。
3、一个数除以6,余数最大是();一个数除以21,商和余数都是9,这个数是()。
6、120秒=()分 420分=()时
48个月=()年 240时=()天。
7、计算360÷60+63时,先算()法,再算()法。
10、甲地到乙地有70千米,赵主任骑自行车从甲地到乙地,每小时行15千米,行了4小时离甲地有()千米。
11、把一根24米长的绳子剪了6次,能剪成()段,如果要剪成12段,需要剪()次。
12、把90÷6=15,30×15=450,合并成一道综合算式是_______________。
13、两个数相除的商是15,余数是10,如果被除数和除数同时缩小5倍,商是(),余数是()。
14、□÷32=11……☆,☆是可能中最大的,则□是()。
三、选择题,把正确答案的序号填在括号里。
(12分)
1. 580个零件,每箱装43个,要用( )只箱。
A.15 B.16 C.17
2.把除数36看作40来试商。
下面的说法最准确的是( )。
A.初商有可能偏小,要改大 B.初商可能偏大,要改小
C.每次都正好,不要改大,也不要改小
3.每上一层楼要走18级台阶,小华家住在五楼,要走( )级台阶。
A.54 B.72 C.90
4.口÷23=l5……20,口中应填( )。
A.322 B.365 C.356 5. 376÷口5,要使商为一位数,[]里可填( )。
A.1~3 B.4~9 C.1~9
6、3□6÷36的商是两位数,□中的数最小是()。
A.7 B.6 C.5
2、除数不变,被除数扩大8倍,商()。
A.扩大8倍 B.缩小8倍 C.不变
3、用“四舍法”试商,初商可能()。
A.偏大 B.偏小 C.无法确定
7、83÷8与830÷80的()。
A.商和余数都相同 B.商相同,余数不同
C.商不同,余数相同
四、计算题。
(24分)
938÷67 408÷20 618÷83
708÷34 580÷86 372÷34
728-365-35 360÷5÷2 60+40×3
125-25÷5 1100÷25÷4 120 + 78÷13
9000-271-729 672÷(24-12)
五、解决问题。
(28分)
1.张老师买了6盒圆珠笔,每盒圆珠笔有8支,一共花了96元,平均每支圆珠笔多少元?
2、小明用一个容量是200毫升的量杯测量一个瓶子的容量,他将量杯装满水倒入瓶中,倒第五次时才倒满,这时量杯中还有150毫升的水。
这个瓶子的容量是多少毫升?
3.某水果店运来23筐猕猴桃,一共卖了598元。
(1)平均每筐猕猴桃卖多少元?
(2)由于价格下跌,每筐猕猴桃的价格下降到原来的一半,如果现在卖出28筐水果,能卖多少元?
4.学校体育组买了6筒羽毛球,每筒羽毛球10个,李老师付出200元,找回20元,每个羽毛球多少元?
5.学校原有篮球24个,又买来72个,现有篮球的个数是原来的多少倍?
6、有同样大小的红、白、黑珠共80粒,按先3粒红的,后2粒白的,再1粒黑的排列,第75粒是什么色的珠子,黑珠共多少粒
7.期中考试李静的成绩语文是90分,数学成绩是92分,英语成绩考多少分就可以使这三门功课的平均成绩为93分。
8.某养鸡场每天收鸡蛋5400个,30个鸡蛋放1盘,3盘放1箱。
水果糖每千克32元巧克力糖每千克69元软糖每千克19元
(1)把这三种糖取同样的重量混合成什锦糖,这种什锦糖每千克多少元?(3分)
6、王师傅8小时生产640个零件,李师傅每小时生产130个零件,王师傅平均每小时比李师傅少生产多少个零件?
7、在一条长144米的大路一边栽柳树,如果要栽25棵柳树,而且路的两端都要栽,那么每两棵柳树之间相隔多少米?
8、小梅到动物园游玩,从狮子馆到熊猫馆走了12分钟。
(1)她用同样的速度从熊猫馆到海豚馆要走多少分?(3分)(2)她用同样的速度朋海豚馆到大象馆走了15分钟,海豚馆到大象馆多多远的距离?(3分)
9、150千克黄豆可榨油50千克,榨1千克油需要多少千克黄豆?。