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篇一:全品学练考七年级下册数学答案
一、填空。
1、平方分米=( )平方厘米 3小时25分=( )小时
2、与0.16的最简单的整数比是( ),比值是()。
3、()是米的,240吨是()的。40分是 时的()
4、把6米长的铁丝平均剪成5段,每段长是全长的,每段长是1米的。
5、两个数的比值是 ,这两个数同时扩同时3倍,它们的比值是()
6、一个三角形的三个内角的度数比是1︰2︰1,这个三角形是________三角形,又是________三角形。
7、一段电线,用去20米,还剩30米,用去了,还剩下。
8、在1.8千克的水中,放入200克盐,则盐与水的重量比是(),盐与盐水的重量比( )
9、一根绳子长8米,剪去( )米,还剩米,若剪去,还剩(
10、一种商品降价,把( )看作单位“1”,( )米。 )是( )的。
11、用一根长96厘米的铁丝围成一个长和宽的比是3∶1的长方形,围成的长方形的面积是()平方厘米。
12、乙数是甲数的,甲数∶乙数=(),如果乙数是56,甲数是(
二、选择题
1、一个数(0除外)除以,这个数就……………………( )
A 扩大6倍 B 增加6倍 C 缩小6倍
2、有两根1米长的钢管,第一根用去米,第二根用,相比( ) )。
A第一根用去的多 B第二根用去的多 C无法比较 D 用去的一样多
3.白兔比黑兔多 ,黑兔与白兔的比是( )。
A.8:3
三.判断题。
(1)比的前项和后项都乘以或除以一个数,比值不变。 ()
(2)甲数是乙数的 ,那么乙数是甲数的 。
(3)男生比女生多 ,那么女生比男生少 。
(4)5吨的 与1吨的 重量相同。() () () B.3:8 C.11:3D.11:8
(5)把3米长的钢管平均截成4段,每段长是 米。
四、计算
1.直接写出得数:
× =÷=+ =
+ = - =× = ÷ =
- =+ = 14 × =
2。能简算简算
6÷ +4÷
3、化简比、求比值
五、文字题 0.4∶ 0.3吨∶150千克 0.6∶ 4÷ - ÷4× + ÷÷( — ) × = - = ()
1、一个数的 是80,这个数的 是多少?2、与它的倒数的和,除以 与 的积,商是多少?
五、应用题
1、桃树的棵数是梨树的 ,梨树的棵数是杨树的 ,已知桃树有30棵,杨树有多少棵?
2、一段木料长8米,先用去全长的 ,又用去 米,一共用去多少米?
3、一种圆柱形的钢材, 米重 吨,现有这样的钢材2米,重多少吨?
4、草地上有180只羊在吃草,其中 是山羊,其余的都是绵羊。绵羊占总只数的几分之几?绵羊有多少只?
5、阳山小学参加植树活动,把240棵树按2 ∶ 3 ∶ 5分配给四、五、六三个年级。六年级比四年级多植了多少棵?
6、一辆汽车从甲地到乙地,平均每小时行驶80千米,行了 小时,刚好行了全程的 。甲地到乙地有多少千米?
7、乒乓球高空落下,每次弹起的高度是落下的高度的,如果从25米的高落下,那么第二次落下又弹起的高度是多少?
8. 学校有杨树120棵,, 有柳树多少棵?( 补充一个条件,变成分数除法应用题,并解答。)
篇二:全品学练考七年级下册英语答案
一、完形填空 (10%)
通读下面短文,掌握其大意,然后在各题所给的A、B、C三个选项中,选出一个最佳选项。 George Wilson was the owner of a watch shop. One day he told his son James, “I’ll teach you all I know about watches.”
For the first few weeks, James1the front of the shop. He worked hard
2 was helpful to the customers ( 顾客 ). George was very pleased with (对…很满意)him. 3about six months, James said to his father, “Is there anything else you want to teach me?” “Yes,” said George, “It’s time for me to teach you how to make 4 . ”
“I know that,” said James, “You buy watches at one price and sell them at5price. That’s how we get so much money.”
“That’s true.6we don’t make most of the money from it.” He7a watch from the counter(柜台). “What do you think of this watch?”
“That’s a cheap watch. We can only get a few dollars from8it.”
“You are9 , my son, ” George said, “Those cheap ones get more money to us than any other watch in the shop.”
“I don’t understand,” James said.
“Because they are really cheap, they are always breaking, and we make our money from fixing(修理) 10 .”
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( )1. A. looked forB. looked at C. looked after )2. A .and B. but C. or )3. A. BeforeB. Soon C. After )4. A. moneyB. watches )5. A. the same C. clocks C. a lower B. a higher )6. A. ButB. So C. And )7. A. picked up B. put up C. pulled up C. repairing )8. A. buyingB. selling )9. A. right B. wrong C. clever )10.A. itB. them C. one
二、. 阅读理解(10%) Mr. White worked in an office in London, but he lived in the country and came to work by train every day. The station was not very far from his office, and he always went on foot from the station to his office and back from his office to the station. Every evening he walked past a poor
man near a bridge. The man sat at the road and sold matches( 火柴 ), and there was a dog near him. There was a piece of wood round the dog’s neck, and the words “ I AM BLIND ” were on the piece of wood.
Mr. White was a kind man. He always stopped and gave a penny( 便士) to the man, but he did not take any of his matches. One day, Mr. White had a lot of work in his office and left the office very late. He came to the man and his dog, but he did not stop. The poor man stood up quickly, ran after him and said, “ You’re always very kind to me . Give me a penny today. I’m a poor man.”
Mr. White stopped and he was surprised(奇怪的). Then he said, “ You’re a blind man. How did you see me?”
The poor man said, “ No, I’m not blind. My dog is.”
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( )1. Mr. White lived in __________. A. LondonB. the city near London C. the country near LondonD. the country not far from his office )2. Mr. White went to his office ___________. A. by train C. on footB. first by train and then on foot D. first on foot and then by train )3. Every evening Mr. White passed a poor man near a bridge _________. A. on his way to work B. on the way to his office C. on his way home by trainD. on his way home )4. One day Mr. White did not stop and give the poor man a penny because ______. A. he did not like the man C. he worked too lateB. he was afraid of the dog D. he hurried to catch the train )5. What is the Chinese for “ blind ” ?
B. 聋的 C. 瞎的 D. 哑的 A. 看见的
Ex3:complete the sentences:
1. 他经常走路上班 He often ______________________
2、坐飞机旅游是最舒服的方式。
Travelling by air___________________________________
3. 山上有数百万棵树 ____________________________________ on the hill.
4 你喜欢什么奥运运动?
What ______________________do you like?
5、滑雪比跑步和骑车要危险得多。
___________________________ running and cycling.
6、听摇滚音乐比听轻音乐更令人兴奋。
Listening to rock music ___________________ than listening to _______________.
7、骑脚踏车比跑步更轻松自在。
___________________________________.
二、首字母填空:
I often take a t___________ to work.
2.In the m____________ world, English is more and more useful.
3. Don’t walk c__________ to me any more.
4. His home is the f__________ of us
篇三:全品学练考数学七年级下册(十)答案
一、认真审题,准确填空(30%)
1、 4︰()=0.4=()÷2.5=()%=()折
2、“一蓑一笠一叶舟,一枝竹竿一条沟,一山一水一明月,一人独钓一江秋“这首诗中出现最多的那个字占全诗总数的()%(%前保留一位小数)。
)%。 3、250克糖水中含有50克糖,那么糖和水的质量比是(),含糖率是(
4、一件货物定价320元,以272元出售。这件货物的折扣率是()。
5、甲数除以乙数的商是0.2,甲与乙的比是(
()%,乙数是甲乙两数和的();甲数是乙数的( )%,乙数比甲数多)() 。
6、某班男生人数与女生人数的比是4︰5,男生人数比女生人数少()%,若男生有20人,则全班有()人。
7、小明在一次打靶练习中,命中了100发子弹,没命中25发子弹,此次练习的命中率是()%。
8、甲船2小时行驶60千米,乙船3小时行驶84千米。甲船行驶的路程和时间的比是()。乙船和甲船的速度比是( )。
)。 9、一个圆的半径是4厘米,圆周长是( ),圆面积是(
10、用一块边长为10厘米的正方形硬纸板,剪出一个面积最大的圆,这个圆的周长是( ),面积是( )。
11、大圆的周长是小圆的6倍,小圆半径与大圆的半径的比是(),大圆面积与小圆面积的比是()。
12、要画一个周长是12.56厘米的圆,圆规两脚间的距离应该取(积是()平方厘米。 )厘米,这个圆的面
13、用一个正方形去盖住整个面积是50.24平方厘米的圆,这个正方形的边长至少是( )厘米。
14、两个立方体的棱长之比是1︰2,它们的表面积之比是(
15、圆心角是60°的扇形的面积是它所在圆面积的(
二、仔细推敲,认真判断(7%)
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( )1、二成等于2%。 )2、需要清楚地表示出部分量与总量之间的百分比关系可以用扇形统计图。 )3、一只长颈鹿高5.72米,比大象高30%,也就是比大象高0.3米。 )4、一个圆和该圆内最大的正方形的面积比是π︰1。 )5、一种产品先提价10%,再降价10%。现在的价格和最初的价格相等。 )%。 ),体积之比是()。
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( )6、517 既可看作分数,也可看作比。 )7、若甲圆的直径比乙圆长,那么甲圆的周长也一定比乙圆长。
三、辨明题意,认真计算(12%)
1.化简下面各比。
0.25︰1.75
2.求出各比的比值。
43 ︰65
四、读明表意,完成表格(18%)
表一:
小 数 0.36
比 19︰20
百 分 数 48% 6.25%
表二:
半 径 5分米
直 径 8米
圆周长12.56厘米
圆面积
五、弄清数据,计算阴影部分的面积(8%)
六、走进生活,完整解答(25%)
1、用长120厘米的铅丝做成长和宽的比为8︰7的长方形,这个长方形的长和宽各是多少厘米?
2、一种药水原来每瓶11元,第一次降价1.5元,第二次又降价0.7元,两次降价后,这种药水的价格比原来降了百分之几?
3、新华书店运来故事书360本,比上午多运来20%,书店上午运来故事书多少本?
4、元旦期间,某旅游店的老板进了1000瓶矿泉水,前1天卖出了全部的25 ,后2天卖出了全部的38 ,假期后还剩下多少瓶没卖出? 0.48︰0.620分钟︰14 小时 2.7︰35 0.6米︰15 厘米
5、王敏在银行存款8000元,定期5年,年利率为4.20%。今年到期后王敏取回本金和利息共多少元?(扣除20%的利息税)
《全品学练考答案七下》出自:百味书屋
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