七年级数学下测试题

2022-08-22

第一篇:七年级数学下测试题

七年级下数学暑假作业测试题目

一、课堂练习:

1.下面数据是截止2002年费尔兹奖得主获奖时的年龄:

2939353339283335313137

32383631393238373429343832

353633293235363739384038

373938343340363637403138

请根据下面的不同分组方法,你觉得比较哪一种分组能更好地说明费尔兹奖得主获奖的年龄分布,并列出频数分布表,画出频数分布直方图.(1)组距是2,各组是;

(2)组距是5,各组是;

(3)组距是10,各组是.

2.江涛同学统计了他家10月份的长途电话明细清单,按通话时间画出频数分布直方图.

(1)他家这个月一共打了次长途电话;

(2)通话时间不足10分钟的次;

(3)通话时间在分钟范围最多,

通话时间在分钟范围最少.

二、课后作业:

3.光明中学为了解本校学生的身体发育情况,对八年级同龄的名女生的身高进行了测量,结果如下(数据均为整数,单位:):

将数据适当分组,绘制频数分布直方图.

4.体育委员统计了全班同学60秒跳绳的次数,并列出下列频数分布表:

(1)全班有名同学;

(2)组距是,组数是;

(3)跳绳次数在范围的同学有人,占全班同学;(精确到0.01%)

(4)画出适当的统计图表示上面的信息;

(5)你怎样评价这个班的跳绳成绩?

第二篇:新北师大版七年级数学下第一章《整式的乘除》测试题(1)

第一章《整式的乘除》检测题

班级_______姓名_______成绩________

一、填空题(每空3分,共75分)

1、a3a2a2

3

ab2;a8a3=;

2、a2

3

a5=; 3x2y2

=;m2m3m5_____;

3、x

n2

xn2=;[(m)2]3=; a54

a23

____;

4、计算3aa2=

5、计算:(4m+3)(4m-3)=;

6、3x2y2

7、3a2 (5a2b-3ab-;

8、3x42x3

_________;

9、化简:y3(y3)22(y3)3

=__________________;

10、已知am=3,an=2,则am+n=___________;

11、一种细胞膜的厚度是0.0000000008m,用科学记数法表示为______________;

12、计算:6a2b3c2ab3

_____________;

13、化简:(15x2y10xy2

)(5xy)=___________;

14、20142-20132=___________;

15、填空:(____________)(mn)2m2

;

16.若(x-3)(x+1)=x2+ax+b,则ba

=________;

17.计算(-0.25)2014×42014

=________;

18、设x2

mx9是一个完全平方式,则m=_______.二、选择题(每题3分,共18分)

19、下列运算正确的是() A、b5+b5=2b10

B、(a5)2=a7

C、(-2a2)2=-4a

4D、6x2

·3xy=18x3y

20、下面计算中,能用平方差公式的是()

A、(a1)(a1)B、(bc)(bc)C、(x1)(y122

)D、(2mn)(m2n)

21、(2a2

b)3

c(3ab)3

等于() A、

2383acB、C、827a2c

27a3cD、8

27c

22、下列各式中,运算结果是9a2

16b2

的是 ()A. (3a2b)(3a8b)B. (4b3a)(4b3a)C. (3a4b)(3a4b)D. (4b3a)(4b3a)

23、下列算式正确的是( ) A、-30

=1B、(-3)-1

=

13C、3-1=-10

3

D、(π-2)=1

24、1-(x-y)2化简后结果是()

A. 1-x2+y2;B.1-x2-y2;

C.1-x2-2xy+y2;D.1-x2+2xy-y2; 三:解答题(7分)

25、先化简,再求值:2(x1)(x1)x(2x1) ,其中x=-2.

第三篇:七年级下英语测试试题

Ⅳ. 单项选择(每小题1分, 共10分)

从A、B、C、D四个选项中选择可以填入空白处的最佳答案。

( )16. —Can Tim play _________ chess?

—Yes. And he can play _________ drums, too.A. the; the B. the; 不填

C. 不填; the D. 不填;不填

( )17. I always help my sister _________ her history.

A. with B. of

C. for D. in

( )18. —Can you sing _________ dance, Gina?

—I can sing, Miss Xu.

A. or B. and

C. but D. because

( )19. Hello, Linda! You can _________ a student in our school.

A. am B. is

C. are D. be

( )20. He can _________. He wants to join the art club.

A. swim B. draw

C. write D. sing

( )21. Clark is a teacher and he _________ Chinese.

A. teaches B. watches

C. asks D. calls

( )22. —Can you _________ English?

—Yes, I can.

A. say B. speak

C. talk D. tell

( )23. —_________?

—Yes, he can.

A. What can Victor do

B. Can I join the club

C. What can I do

D. Can Victor join the club

( )24. —Can you play the violin?

—_________. But I can play the piano.

A. Yes, I can B. Yes, I do

C. No, I don’t D. No, I can’t

( )25. —What can Bob do?

—He _________.

A. can sing and dance

B. plays volleyball well

C. likes soccer very much

D. wants to be in our club

Ⅴ. 情景交际 (每小题1分,共5分)

根据对话内容,从方框中选择恰当的选项补全对话,其中有两项多余。

A: Hi, can I help you?

B: Yes, please. (26)_____________________

A: What club do you want to join?

B: (27)_____________________

A: Can you draw?

B: No, I can’t.

A: (28)_____________________

B: Yes. And I can play them well.

A: (29)_____________________

B: Great! Then I can know much about music.

A: Here is a card. (30)_____________________

B: OK. Thanks.

A. You can join the sports club.

B. I think you can join the music club.

C. Please write your name and phone number.

D. I want to join a club.

E. What can you do?

F. Can you play the drums?

G. I don’t know.

Ⅵ. 完形填空 (每小题1分,共10分)

先通读下面的短文,掌握其大意,然后从A、B、C、D四个选项中选择可以填入空白处的最佳答案。

易读度 ★☆☆☆☆

Hello, I’m Abel. We have some 31 in our school — the music club, the chess club, the sports club and so on. Many boys want to 32 the sports club. What sports can 33 play? They can play basketball, volleyball and tennis, and they 34 basketball best (最). They think it’s interesting and 35 . We all know Lin Shuhao is 36 great basketball player (运动员). Boys 37 to be a basketball player like him. Some girls 38 like playing basketball.

Can you play basketball? If not, I can tell you 39 . I’m in the basketball club. I can play it well. It’s not 40 to be a good player. But if you work hard and often play it, you can do well.

( )31. A. classes B. clubsC. computers D. subjects

( )32. A. see B. help C. join D. sell

( )33. A. they B. we C. you D. he

( )34. A. thank B. need C. watch D. love

( )35. A. boring B. relaxing C. busy D. fat

( )36. A. the B. an C. a D. 不填

( )37. A. sound B. want C. get D. come

( )38. A. also B. too C. only D. very

( )39. A. where B. what C. how D. when

( )40. A. small B. difficult C. big D. easy

Ⅶ. 阅读理解 (每小题2分,共20分)

A

易读度 ★☆☆☆☆

Mike: Can I help you?

Jane: I want to join the art club. I can draw well.

Mike: OK. What’s your name?

Jane: Jane Brown.

Mike: How old are you?

Jane: I’m 12. I want to join the swimming club, too.

Mike: Can you swim?

Jane: No, I can’t, but I like swimming and I want to learn (学习) it.

Mike: OK. What’s your phone number? And your e-mail address (地址)?

Jane: I don’t have a phone. My e-mail address is jane@gmail.com.

Mike: OK. Welcome to our clubs.

Jane: When can I come to the clubs?

Mike: Come to the art club on Sunday afternoon and the swimming club on Saturday evening.

Jane: Thanks a lot.

根据材料内容选择最佳答案。

( )41. Jane is ______ years old.

A. ten B. eleven

C. twelve D. thirteen

( )42. Jane cannot ______.

A. draw B. swim

C. sing D. dance

( )43. Jane can come to the art club ______.

A. on Saturday morning

B. on Saturday evening

C. on Sunday afternoon

D. on Sunday evening

( )44. Why does Jane want to join the swimming club?

A. She likes swimming and wants to learn it.

B. She wants to have new friends.

C. She wants to be healthy.

D. She thinks swimming is relaxing.

( )45. 下面的陈述哪项是正确的?

A. Jane has a phone.

B. Jane has no email address.

C. Mike is Jane’s good friend.

D. Mike thinks Jane can join the two clubs.

B

易读度 ★★☆☆☆

My name is Sabrina. I’m 23 years old. I come from London. Now I live (生活) in Beijing. I love teaching English. I think it’s interesting. I can speak Chinese, too. I have experience (经验) in teaching English in China.

My e-mail address is sabrina@sina.com.

I’m Bill, an 18yearold student. I live in Nanjing now. I can play the guitar well. I like to be a teacher. I have free time on weekends. Do you want to learn the guitar? Please call me at 15069606503.

I’m June Smith. I’m 25. I can swim well. I want to be a swimming teacher. I love kids and I’m good with kids. I can help them learn to swim. If you need a teacher in your club, please email me at june@sina.com.

根据材料内容选择最佳答案。

( )46. Sabrina wants to be ______.

A. a Chinese teacher

B. an English teacher

C. a guitar teacher

D. a swimming teacher

( )47. Bill lives in ______.

A. Nanjing B. Beijing

C. Shanghai D. Hefei

( )48. June wants to work in a(n) ______ club.

A. English B. music

C. swimming D. soccer

( )49. Lisa needs a swimming teacher. She can ______.

A. call June B. e-mail June

C. call Sabrina D. e-mail Sabrina

( )50. Bob wants Bill to teach him the guitar. He can learn it on ______.

A. Monday B. Wednesday

C. Friday D. Sunday

Ⅷ. 词汇运用(每小题0.5分,共5分)

A)看图写出单词。

51. ______________ 52. ______________

53. ______________ 54. ______________

55. ______________

B)根据句意及所给首字母提示,补全句中所缺单词。

56. Our English teacher tells us s in English.

57. I want to t to them and play games with them.

58. He is not at school and he is at h .

59. Can I m friends with you?

60. Linda can play basketball on the w .

Ⅸ. 完成句子(每小题2分,共20分)

A)根据汉语意思完成英语句子,每空一词。

61. 他喜欢和人们谈话。

He likes to people.

62. 我妹妹也是一名音乐家。

My sister is a .

63. 对付老人你有一套吗?

Are you old people?

64. 今天你想做什么运动?

sports do you want to play ?

65. 他在游泳俱乐部吗?

Is he in the ?

B)根据各题后括号内的要求完成下列各题,每空一词(含缩略形式)。

66. They want to join the sports club. (改为一般疑问句)

________ they want to ________ the sports club?

67. The girl can play tennis well. (改为一般疑问句)

________ the girl ________ tennis well?

68. Can Bill play the drums well? (作否定回答)

________, he ________.

69. Mary can play ping-pong and soccer. (改为否定句)

Mary ________ play ping-pong ________ soccer.

70. Tom can join the chess club. (对划线部分提问)

________ ________ can Tom join?

Ⅹ. 书面表达 (10分)

英语老师要求每位同学调查三位好朋友的能力情况。假如下表就是你的调查结果,请根据表格内信息提示,写一篇英语短文在英语课上汇报你的调查结果。

要求:写作中运用can或can’t,50词左右。

附加题

易读度 ★★☆☆☆

My name is Dora. I’m American and I’m thirteen. I’m a student in No. 7 Middle School. I like music very much. I can play two instruments — the guitar and the piano. I play them very well and I’m on the school art club.

Jeff and Michael are my brothers. They are students, too. But we aren’t in the same school. They like sports. Jeff plays basketball and soccer very well. Michael swims and plays ping-pong very well. I am not good at sports. They help me with sports after school.

We live in London with our parents now. My mother is an English teacher and my father is a musician. My mother swims well. My father can play the violin.

根据材料内容选择最佳答案。

( )1. There are ______ people in Dora’s family.

A. three B. four C. five D. six

( )2. The underlined word “instruments” means “______” in Chinese.

A. 器具 B. 乐器 C. 工具 D. 食品

( )3. Jeff is good at ______.

A. soccer and ping-pong

B. swimming and ping-pong

C. soccer and basketball

D. swimming and basketball

( )4. What does Dora’s father do?

A. He is an English teacher.

B. He is a doctor.

C. He is a sports player.

D. He is a musician.

( )5. 下面的陈述哪项是正确的?

A. Dora is good at sports.

B. Jeff and Michael like music.

C. Dora’s parents live in London now.

D. Jeff and Michael are in No. 7 Middle School.

参考答案

Ⅳ. 16-20 CAADB 21-25 ABDDA

Ⅴ. 26-30 DGFBC

Ⅵ. 31-35 BCADB 36-40 CBACD

Ⅶ. 41-45 CBCAD 46-50 BACBD

Ⅷ. 51. swim 52. dance 53. piano 54. violin 55. guitar

56. stories 57. talk 58. home 59. make 60. weekend

Ⅸ. 61. talk to / with 62. also; musician 63. good with 64. What; today

65. swimming club 66. Do; join 67. Can; play 68. No; can’t

69. can’t; or 70. What club

Ⅹ. One possible version:

I have three good friends. They are Tom, Jim and Cindy. Tom can play the violin very well. He can also play soccer, but he can’t dance. Jim can’t play the violin or dance, but he can play soccer. Cindy can play the violin and dance, but she can’t play soccer.

附加题

1-5 CBCDC

第四篇:七年级生物 下测试题

一、选择题。

1、人类起源于()

A、猴子 B、黑猩猩 C、类人猿 D、森林古猿

2、下列各项中,形成血红蛋白所必不可少的物质是()

A、铁 B、锌 C、碘 D、钙

3、消化道的哪个部位吸收营养物质的能力最强()

A、胃 B、十二指肠 C、小肠 D、大肠

4、有利于提高我国人口素质的措施是:()

A、晚婚 B、晚育 C、少生 D、优生

5、平时我们所吃的米、面、甘薯和马铃薯都含有丰富的:()

A、糖类 B、蛋白质 C、维生素 D、脂肪

6、人患急性炎症时,验血时往往会发现血液中增多的是()

A、红细胞 B、血小板 C、白细胞 D、血红蛋白

7、人体内含量最多的物质是()

A、水 B、蛋白质 C、脂肪 D、糖类

8、空气和食物进入人体的共同通道是()

A、口腔 B、食道 C、喉 D、咽

9、鼻腔不具有的功能是()

A、温暖,湿润进入鼻腔的空气 B、气体交换的场所

C、清洁进入鼻腔的空气 D、气体进出的通道

10、下列物质中,不能被消化道直接吸收的是()

A、水 B、氨基酸 C、葡萄糖 D、麦芽糖

11、当吸气时()

A、肋间肌收缩,膈肌收缩 B、肋间肌收缩,膈肌舒张

C、肋间肌舒张,膈肌收缩 D、肋间肌舒张,膈肌舒张

12、贫血主要导致血液()

A、运输氧气的能力降低 B、运输营养物质的能力降低

C、运输无机盐的能力降低 D、运输含氮废物的能力降低

13、“绿色食品”指的是()

A、富含叶绿素的食品 B、新鲜的蔬菜

C、无污染,安全,优质的食品 D、贴有“绿色”防伪标记的食品

14、平常所说的痰来自()

A、鼻 B、咽 C、喉 D、气管和支气管

15、氧气进入人体后,最终要到达()

A、肺 B、血液 C、细胞 D、心脏

16、当病菌侵入人体后,能吞噬病菌、对人体起到防御和保护功能的是()

A、红细胞 B、白细胞 C、血小板 D、血红蛋白

17、下列叙述中,错误的一项是()

A、每日三餐要按时进餐,晚餐不能吃太饱 B、已变质的食物必须窝内蒸煮后才能食用

C、饭后立即进行剧烈的体育锻炼,会抑制消化功能 D、鲜艳的蘑菇一般含有毒的物质

18、红细胞呈现红色,是因为()

A、染色所致 B、红细胞中的血红蛋白是红色

C、红细胞没有细胞核 D、红细胞运输氧气

19、对动脉的叙述中,不正确的是()

A、将血液从心脏输送到全身各部分的血管 B、管壁厚,弹性大

C、管内血流速度慢于相应的静脉 D、管腔内径大于相应的静脉

20、由于森林减少及排放的二氧化碳增多,现在全球环境出现了()

A、赤潮 B、沙尘暴 C、温室效应 D、酸雨

二、填空题。

1、受精卵不断进行分裂,发育成胚泡后移到___________进一步分裂和分化,形成胚胎,胚胎通过___________、脐带从母体中或得所需要的营养物资。

2、毛细血管是连通于最小的动脉之间的血管,壁非常薄,只有一层扁平的___________构成,这样有利于血液与组织细胞间进行___________交换。

3、维生素既不够成细胞的主要原料,又不为人体提供能量,但人体一旦缺乏维生素,则会影响人体正常的___________,甚至患病。

4、小肠内表面有许多皱襞,皱襞表面有许多绒毛突起,叫___________,这样可以大大增加小肠的表面积,所以小肠是人体___________营养物质的主要器官。

5、控制污染物排放是防治大气污染,改善空气质量的根本措施,此外,___________也是防治大气污染的有效措施。

6、、人体的呼吸系统是由______和______两部分组成的,其中________是气体进出的通道。

7、能分泌胆汁的器官是_________, 能最先消化蛋白质的器官是________,消化吸收的主要器官是_________ ,能将食物残渣形成粪便的器官是________。

8、人体的三种血细胞形态、大小和特点各部相同,你能判断出以下特点分别是哪种血细胞吗?具有核的是___________,双面凹圆饼状的是___________,最小的是___________。

9、人的血液由___________和___________组成。

10、提倡用鼻呼吸是因为鼻腔的入口处有鼻毛,而且鼻粘膜内分布着丰富的___________对吸入的空气具有过滤、湿润和温暖的作用。

三、分析题。

1、根据食物的营养成分的主要功能,回答如下问题。

(1)、和尚长期吃素,但不容易患夜盲症。这是因为__________________。

(2)、注意吃一些烧牛肉、谷物类食物,不会出现神经炎、食欲不振、消化不良等症,这是因为这些食物中含有较多的____________________________。

(3)、一般的贫血患者应多吃肝脏、搜肉、鱼、奶等食物,对治疗贫血有一定的好处。这是因为这些食物中含有较多的______________________。

2、列出100克黄豆和100克牛奶所含的几种营养物质,以及一位成年人每日对这几种营养物质的需要量。

主要营养物质100克黄豆中的含量(克)100克牛奶中的含量(克)成人每日需要量(克)

糖类28 63.43 80.00

脂肪16.0 3.28 0.00

蛋白质35.1 3.08 0.00

钙0.19 0.10 0.80

(1)成年人每日只吃1000克黄豆,那么,是否有的营养物质超过了每日的需要量?____________________________________________。

(2)如果这个人每天只吃2500牛奶,那么,是否有的营养物质不能满足他每日的需要量?_____________________________________________。

(3)如100克牛奶所含的能量是272千焦,而每日婴儿需要的能量是3400千焦,那么,这个婴儿每日时少需要吃多少牛奶?_________________克。

3、下面是我国居民肺癌死亡率(1/10万)城乡居民的一组数据,据此回答问题。

环境男性肺癌死亡率女性肺癌死亡率

大城市16.8 38.99

中等城市12.7 55.66

小城市9.9 84.53

农村6.01 2.84

(1)在什么样的环境中生活和工作的居民,肺癌死亡率高?

____________________________________________________________________。

(2)请你试着分析肺癌死亡率城乡差别较大的原因是什么?

____________________________________________________________________。

第五篇:七年级(下)数学教学反思

斗古中学 七年级(6)班张学政

担任七年级数学教学工作一年来,在不断地摸索和学习中进行教学。认真回顾这一年的教学工作,现对自己的观点和做法进行重新思考,将反思所得总结如下:

第一,摒弃旧的教学观念,建立全新的教学理念。

在教学中,改变了自己在以往在课堂教学中的主角角色:将要讲述的内容为自己编好“剧本”,然后自己在讲坛上尽情演绎,将知识灌输给学生。而现在是给学生编好“剧本”,为学生创设学习的情境,让学生在课堂上充当主角,在教师的引导下进行演绎,自主、合作地获取知识。

第二,教师应有组织、领导能力

教师应从知识的传授者转变为学习的组织者、引导者、合作者与共同研究者,要让学生演好主角的角色就必须为学生设计好适合学生演绎的剧本。因些,本人认真钻研教材,为集体备课和学习材料的设计做好充分的准备。

第三、尊重个体差异

面向全体学生“人人学有价值的数学,人人都能获得必需的数学;不同的人在数学上得到不同的发展。”这是新课标努力提倡的目标,这就要求教师要及时了解和尊重学生的个体差异,承认差异,要尊重学生在解决问题的过程中所表现出来的差别,不挖苦、不讥讽,相反在问题情境的设置、教学过程的展开、练习的安排中,都要尽可能让

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2全体学生能主动参与,使学生能根据自己的实际情况选择有所为和有所不为或有能者有大作为,小能者有小作为的练习。

第四、在课堂教学上突出了精讲巧练,做到堂上批改辅导和及时的反馈。

由于人数较多,新学生的数学层次参差,有针对性的辅导还不完善。另学生学习的参与度还可以提高,体现在小组讨论、新知识的举例交流等合作学习,今后还可适当增加。七年级的学生学习方法较单一,可加强学法的指导。

第五、改变单纯以成绩高低评价学生的学习状况的传统评价手段逐步实施多样化的评价手段与形式:既关注学生知识与技能的理解与掌握,又关注学生情感与态度的形成与发展;既关注学生的学习结果,又关注他们在学习过程中的变化与发展。我加强课外的辅导,想办法让他们体验学习成功的喜悦。我深感在教学的理念上、教师与学生在教与学的角色上、教学的方式方法上、师生的评价体系上都发生了根本的转变,这都给教师提出了新的挑战,因此,只有在教学的实施中,不断地总结与反思,才能适应新的教学形势的发展。

2012年6月25日

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