《数的开方》提高测试(9)
《数的开方》提高测试
姓名 班级 学号
（一）判断题（每小题2分，共16分）
1．两个正数，大数的平方根也较大…（ ） 2．5.050050005是有理数…（ ） 3．算术平方根最小的实数是0… （ ）
4．因为－5的绝对值是5，所以绝对值等于5的数一定是－5…………（ ）
5．有理数与无理数的积是无理数（ ） 6．实数中既无最大的数又无最小的数（ ） 7．两个无理数的和不一定仍是无理数（ ）8．两个有理数之间的无理数有无数个（ ） （二）填空题（每空格1分，共23分） 9．9
1
的平方根是__ _，算术平方根的相反数是_ __，算术平方根的倒数的平方根是__ _． 10．平方根等于本身的数是________；算术平方根等于本身的数是______；立方根等于
本身的数是___________． 11．如果a 2＝36，那么a 3＝_________．
12．如果|x |＝5，那么x ＝_______；如果|x |＝2－1，那么x ＝_______． 13．如果0≤a ≤1，化简|a |＋|a －1|＝__________． 14．当x ＝______时，12+x ＝0，当x ＝______时，式子2+x ＋2--x 有意义． 15．如果（x －6）2
＋|y ＋2|＋1+z ＝0，那么（x ＋1）2
＋（y －2）2
＋（z －3）2
的四次方根是______．
16．比较下列每组数的大小：
61____7
1
；0____－π；7_____2.8；－3_____－5．
17—1206科学计算器的键后，再依次按键 ________．
18．在36，2
π
，－?
?71.5，－39，38-，0.315311531115…，0中，无理数有__________
____________________；负实数有______________________；整数有________________．
19．满足－2＜x ＜10的整数x 是______________________． 20．正方体的体积是216 cm 3，则它的表面积是_______cm 2． （三）选择题（每小题4分，共16分）
21．下列说法：①一个正数的算术平方根总比这个数小；②任何一个实数都有一个立方根，但不一定有平方根；③无限小数是无理数；④无理数与有理数的和是无理数．其中正确的是…………………………………………………………………………（ ）
（A ）①② （B ）③④ （C ）①③ （D ）②④ 22．a ，b 为实数，则代数式（a －b ）2＋ab ＋|a |的值…………………………（ ）
（A ）大于0 （B ）大于或等于0 （C ）小于0 （D ）等于0
23．一个正数的正的平方根是m ，那么比这个正数大1的数的平方根是………（ ）
（A ）m 2＋1 B .±1+m （C ）12
+m （D ）±12
+m
24．n 1－n
1-＝2成立的条件是…………………………………………………（ ）
（A ）n 是偶数 （B ）n 是大于1的自然数 （C ）n 是大于1奇数 （D ）n 是整数 （四）计算题（每小题4分，共8分）
25．81.031－4162＋2268101+；
26．3
008.0-＋481－532－38742-．
（五）求下列各式中x 的值（每小题4分，共8分）
27．3（x 21＋1）2－108＝0； 28．8（x －1）3＝－64125
．
（六）求值（每小题6分，共18分） 29．已知A ＝342--+b a a 是a ＋2的算术平方根，B ＝9232-+-b a b 是2－b 的立方根． 求3A －2B 的立方根．
30．已知y ＝12-x ＋x 21-＋x －
2．求y x +10的值．
31．已知|x |＝3，求代数式
112-x ＋12+x －1
1
-x 的值． （七）（6分）32．一个长方体的木箱，它的底面是正方形，木箱高0.85米，体积为1.19米3
，求这个木箱底面的边长（保留两个有效数字）．
（八）（5分）33．用作图的方法在数轴上找出表示2
1
15-的点A ．
《数的开方》提高测试 答案
（一）判断题（每小题2分，共16分）
1．两个正数，大数的平方根也较大 ……………………………………………（× ） 2．5.050050005是有理数…………………………………………………………（ √ ）
3．算术平方根最小的实数是0……………………………………………………（√ ） 4．因为－5的绝对值是5，所以绝对值等于5的数一定是－5………（× ） 5．有理数与无理数的积是无理数………………………………………………（ × ） 6．实数中既无最大的数又无最小的数…………………………………………（√ ） 7．两个无理数的和不一定仍是无理数…………………………………………（ √ ） 8．两个有理数之间的无理数有无数个…………………………………………（√ ） 【提示】第5题中，当有理数是零时，它与无理数的积是零，是有理数． （二）填空题（每空格1分，共23分）
9．9
1的平方根是__ _，算术平方根的相反数是_ __，算术平方根的倒数的平方根是__ _．
【答案】±
31，－3
1
，±3． 10．平方根等于本身的数是________；算术平方根等于本身的数是______；立方根等于
本身的数是___________．【答案】0；0，1；－1，0，1．
11．如果a 2＝36，那么a 3
＝_________．【答案】±216． 12．如果|x |＝5，那么x ＝_______；如果|x |＝2－1，那么x ＝_______． 【答案】±5，2－1或1－2．
13．如果0≤a ≤1，化简|a |＋|a －1|＝__________．【答案】1．
14．当x ＝______时，12+x ＝0，当x ＝______时，式子2+x ＋2--x 有意义．
【答案】－
2
1
，－2． 15．如果（x －6）2＋|y ＋2|＋1+z ＝0，那么（x ＋1）2＋（y －2）2＋（z －3）2的四次方根是______．
【答案】±3．
16．比较下列每组数的大小：
61____7
1；0____－π；7_____2.8；－3____－5．【答案】＞，＞，＜，＞．
17
—1206科学计算器的键后，再依次按键 2．
18．在36，2
π
，－?
?71.5，－39，38-，0.315311531115…，0中，无理数有
__________
____________________；负实数有______________________；整数有________________．
【答案】2
π，－3
9，0.315311531115…；－?
?71.5，－39，38-；36，38-，
0．
19．满足－2＜x ＜10的整数x 是______________________．【答案】－1，0，1，2，3．
20．正方体的体积是216 cm 3，则它的表面积是_______cm 2．【答案】216． （三）选择题（每小题4分，共16分）
21．下列说法：①一个正数的算术平方根总比这个数小；②任何一个实数都有一个
立方根，但不一定有平方根；③无限小数是无理数；④无理数与有理数的和是无理数．其中正确的是…………………………………………………………………………（ ） （A ）①② （B ）③④ （C ）①③ （D ）②④【答案】D ．
22．a ，b 为实数，则代数式（a －b ）2＋ab ＋|a |的值…………………………（ ）
（A ）大于0 （B ）大于或等于0 （C ）小于0 （D ）等于0【答案】（B ） 23．一个正数的正的平方根是m ，那么比这个正数大1的数的平方根是………（ ）
（A ）m 2＋1 B .±1+m （C ）12
+m （D ）±12
+m 【答案】D ．
24．n
1－n 1-＝2成立的条件是…………………………………………………（ ） （A ）n 是偶数 （B ）n 是大于1的自然数 （C ）n 是大于1奇数 （D ）n 是整数【答案】C ．
（四）计算题（每小题4分，共8分）
25．
81.03
1－4162＋2268101+；
26．3
008.0-＋481－532－38742-． 【答案】25．－3.7 26．4.3．
（五）求下列各式中x 的值（每小题4分，共8分）
27．3（
x 21＋1）2－108＝0； 28．8（x －1）3＝－
64
125
． 【答案】27．x ＝10或x ＝－14； 28．x ＝8
3
．
（六）求值（每小题6分，共18分）
29．已知A ＝342--+b a a 是a ＋2的算术平方根，B ＝9232-+-b a b 是2－b 的立方根．
求3A －2B 的立方根． 【提示】根据题意，得
?
?
?=-+=--39232
34b a b a 解之得
?
??==.32
b a ∴ A ＝2+a ＝22+＝2，B ＝32b -＝332-＝－1．
∴ 3A －2B ＝3×2－2×（－1）＝8． ∴ 323B A -＝38＝2． 【答案】2．
30．已知y ＝12-x ＋x 21-＋x －
2．求y x +10的值．
【提示】根据题意，得：
??
?≥-≥-0210
12x x ∴ x ＝21，y ＝x －
2＝（2
1）－2＝4．
∴ y x +10＝42
1
10+?＝9＝3．
【答案】3．
31．已知|x |＝3，求代数式
112
-x ＋12+x －1
1
-x 的值． 【提示】∵ |x |＝3．∴ x ＝±3．
原式＝1)1()1(212-+--+x x x ＝1
22
--x x ． 当x ＝3时，原式＝1
)3(232
--＝1323--＝22
3-． 当x ＝－3时，原式＝
1
)3(232----＝
13)23(-+-＝－2
2
3+．
【答案】当x ＝3时，原式＝
223-，当x ＝－3时，原式＝－2
2
3+． （七）（本题6分）
32．一个长方体的木箱，它的底面是正方形，木箱高0.85米，体积为1.19米3，求
这个木箱底面的边长（保留两个有效数字）． 【提示】设这个木箱底面边长为x 米．
根据题意，得
0.85x 2＝1.19，
x 2＝1.4，
∴ x ≈1.2． 【答案】1.2米． （八）（本题5分）
33．用作图的方法在数轴上找出表示2
1
15-的点A ． 【答案】如图：
点P 就是数轴上表示2
1
15-的点．
七年级英语下册unit9测试题及答案
新目标七年级下学期英语考试题 Unit 9 How was your weekend? I. Fill in the blanks with the words in the box. （选用方框中所给词填空。） 1. They _____ for the math test last night. 2. Who _______ to the beach last weekend? 3. _____ your teacher busy last week? 4. They went to the zoo, because they _______ to see the pandas. 5. Linda ________ her uncle and aunt on weekend. 6. My brother ________ computer games last Sunday. 7. John ________ a soccer game over the weekend. 8. Lucy ________ her room last Saturday morning. II. Finish the questions and answers. （完成问句和答语。） 1. What ____ _____ ______ over the weekend? He played soccer. 2. What _______ _____ _______ on Sunday? We did our homework. 3. What did they do on Saturday? They ______ to the library and _______ for the science test. 4. What did Lisa do on Sunday morning? She ______ tennis with her friend. 5. What ______ your brother _________ last Saturday afternoon? He ______ his room. 6. ______ did you do on Saturday evening? I _____ to the movies. 7. _____ did your parents do on Sunday afternoon? They _______ TV. 8. What _____ your sister _______ over the weekend? She ______ computer games. III. Choose the best answer. （单项选择。） （）1. What did you do _______ the weekend? A. to B. of C. in D. over （）2. He didn’t _______ a nice weekend. A. has B. had C. have D. having （）3. He _____ his homework. A. didn’t B. isn’t C. isn’t do D. didn’t do （）4. How _____ your weekend? A. did B. was C. were D. are （）5. John had a busy weekend. He _____ math. A. study B. studies C. studied D. is studying （）6. Jim played _______ soccer and Kate played _______ piano. A. the, the B. the, / C. /, / D. /, the （）7. Did you study ______ the English test? A. for B. of C. at D. to （）8. Lucy ______ at home and read ______ interesting book. A. stay, an B. stayed, an C. stays, an D. stayed, a （）9. _____ Sunday evening I watched TV. I ______a talk show.
新目标英语九年级Unit9单元测试卷有答案(人教版)
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Unit 9 What does he look like? 单元测试题 一?选择题(30分) ( )I. -- _________ does he look like?--He is tall with a round face. A. How B. What C. Who D. Which ( )2. --Do you know the girl in our school who always wears a red skirt and white shoes? --Yes, I do. _______ n ame is Wang Ling. A. His B. She C. Her D. Hers ( )3. They are ______ medium build, but they are very strong. A. of B. in C. on D. at ( )4. I have a new friend. He has ___________ . A. blonde long hair B.bl onde long hairs C. long blonde hairs D. long blonde hair ( )5. I don ' t like swimming , but my brother A .likes B. does C. do D.likes ( )6.--What do you like doing whe n you are free?--I like playi ng __ chess with my brother. A./ B.a C. the D. an ( )7. --How is the boy?-He is a good student. He ___ arrives at school on time. A. n ever B. always C. sometimes D. some times ( )8.15. Mrs Green has ________ hair. A. black long beautiful B. beautiful black long C. beautifu I long black D. a beautiful long black ( )9. --What do you think of the new movie?-- _____ likes it. It' s bori ng. A. Everyone B. An ybody C. Nobody D. Some one ( )10. "You look very nice," she ___ to me. A. tells B. speaks C. talks D. says ( )11.Ann _____ tall and ________ big eyes. A. has has B. is , has C. has, is ( )12.What is he like? He is A. relaxed B .tired C. tall D. kind ( )13.Stop ___________ , please. The baby is sleep ing. A. talki ng B. to talk C. talk D. talked ()14.Mary has A. l ong hair B. a long hair C. long hair ( )15. There is ________ hair on her head. A. a few B. a little C. few D. many ( )16. My father is a little fat. He loves _______ jokes. A. to tell B. tell C. to speak D. to say ( )17. She always ________ a red dress and white shoes. A. put on B. puts on C. in D. wears ( )18. Does he _______ a new look? A. has B. have C. with D. in ( )19. When you leave the room , please remember __________ off(关掉)the light. A. turni ng B. turns C. to turn D. turned ( )20. She ' s a sin ger. She is g __________ . A. singing B. to sing C. sings D. sang ( )21. The young man who ________ glasses is my teacher. A. wear B. wears C. put on D. with ( )22. He is n ew. Many people _________ him. A. doesn ' t know know C. don ' t know D. knows ( )23. There _________ no body in the room. A. is B. are C. has D. have
平方根练习测试题
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15．16的算术平方根是 ，平方根是 16．一个负数的平方等于81，则这个负数是 17．如果一个数的算术平方根是5，则这个数是 ，它的平方根是 18．当_______x 时， x -11有意义； 19．若14+a 有意义，则a 能取的最小整数为 20．若a 的平方根是±5，则a = 。 21．利用平方根、立方根来解下列方程．（10分） （1）（2x-1）2-169=0； （2）4（3x+1）2-1=0； 22、求下列各式的值. （6分） 23．探究题（7分） （1）若 ； ，则 ________， ________，________，________。 （2）若； ，则 ________， ________， 24．求下列各式中的值。（9分） （1）26 （2）2 )6(- （3）2)6( （4）－2 6 （5）±2 )6(- （6）－0 （7 （8 （9 25、（8分） ，求
Unit9测试题
新目标英语七年级（上）第9单元测试卷班级：_____ 学号：_______ 姓名：_____________ 得分： ______________ I ?选择填空。（每题一分，共12分） ( ( ( ( C. Mrs C. on C. i n Li. He has three childre n. A. Sir B. Miss ____ the after noon of Tuesday. A. i n B. for B. at class very much . D. Mr D. at D. of )1.This is ___ )2.1 have P.E. )3.They have a party ______ S aturday after noon. A. on )4.Mr Zhang teaches ________ Chi nese. We like _ A. me; her B. me; his C. us; his D. us; her )5. —______ is it today? —It's Su nday. A. What day B. What about C. What time )6. —Happy New year! —_____ A. I know. B. The same to you. C. I'm fine. )7. I like art ______ it's fun. A. why B. what )8.—Why don't you like En glish? —Because it's A. in teresti ng B. fun C. excit ing D. difficult )9.Saturday is the _______ day of a week. A. six B. seven C. sixth D. seventh )10. We have ________ every day. A. a Chinese B. Chinese C. the Chinese D. Chineses )11.—When do you have your P.E.lesson—On _________ . A.the morning B.the Friday morning )12. -- ______ do you like music? A. How B. Why D. What color D. Thank you. C. how D. because C.Friday mornin D.the morni ng Friday --Very much. C. When D. What II.完型填空(每题一分，共18分) This is 1 classroom.It is a 2 room.The walls are 3 . There are forty 4 in our class.You can see 5 desks and chairs in it.You can also see 6 near the window.The flowers(花)on it are very beautiful(漂亮).Can you see two maps 7 the wall? One is the ( ( ( ( ( ( ( ( 1. A.we B.our https://www.360docs.net/doc/7219130539.html, D.we's 2.A.difficult Bjnicrcsting C.bori ng D.nice 3. A.black B.brow n C.white D.yellow )4. A. stude nts ELa student C.stude nt D.the students 5.A.some B.aiiv C.a n D.thirty-six 6.A.a teacher desk D.teachersdes 7.A.in B.at C. on D.by 8.A.in B.of C. on D伽 Dona. I'm fourtee n 1 ! My ) ) ) ) ) ) ) 3 . I 8_Chi na.The other is the (B ) n ame 2 like meeting my friends 4_ going to the cinema. My favorite 5 is Brad Pitt. I am Mark. rm sixteen. I 6 like sport. I 7 French very well and I like scie nee. I want 8 everyth ing about it. This is Liz. She is thirteen. 9 favorite thing is skating and she can skate very 10_. She likes music. She says it's excit ing. ( )1. A. Hi B. Tha nks C. Sorry D. Yes ( )2. A. am B. is C. be D. are
Unit9单元测试题(1)
Unit 9 My favorite subject is science. 单元测试题 Written test part （共80分） 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. Mike’s mother needs _______ hour to make dinner every evening. A. a B. an C. the D. 不填( )17. Sally will be in Shanghai _______ 3 days. A. at B. of C. for D. on ( )18. I don’t want that T-shirt _______ it’s too big for me. A. after B. but C. because D. so ( )19. —Are you _______ today, Linda? —No. I have many things to do. A. free B. tidy C. late D. fine ( )20. Thursday comes after _______. A. Friday B. Wednesday C. Tuesday D. Monday ( )21. —What time do your classes _______ in the afternoon? —At 5:30. A. have B. help C. come D. finish ( )22. At school our first _______ today is art. A. lesson B. game C. sport D. term ( )23. —What color _______ your sister _______? —White. A. do; like B. does; like C. do; likes D. does; likes ( )24. —_______? —Linda. A. Where do you make salad B. How do you make salad C. Why do you make salad D. Who can make salad ( )25. —David is good fun. I like him.
数的开方单元测试题
八年级上期数学单元教学诊断㈠－数的开方 一、填空题 1、4的平方根是_____，算术平方根是_____，3的算术平方根是 ；－8的立方根是_____。 －216的立方根是________。3 83的立方根是_______。25的算术平方根是______. 4 12的平方根是 ；－27的立方根是 。 2、一个数的算术平方根是3，这个数是 。 3、23-的相反数是 ，绝对值是 。 4. 0.25的平方根是 ;９2 的算术平方根是 , 16 的平方根是 。 5. =81 ，25 16±= ，2)3(-= 。 ±81＝__________，－ 3－18＝__________。225-= 6．在实数中，绝对值最小的数是 ，最大的负整数是 ． 7. 若a 的一个平方根是b ，那么它的另一个平方根是 ， 8、在4、－8、213 、0.3、0、π中，__________是无理数。 9、比较大小：32__________2 3 10.已知,08,0362532=+=-y x 则y x +的值是____________. 11.当642=a 时, .___________3=a 12、若22-a 与|b +2|互为相反数，则（a －b ）2＝______； 若2x ＋1＋|y －1|＝0，则x 2＋y 2＝__________ 13、用计算器探索：已知按一定规律排列的一组数：1，12， 1 3，…，119，120 ，如果从中选出若干个数，使它们的和大于3，那么至少．．要选__________个数。 二、选择题 14、下面说法中不正确的是__________ A 、6是36的平方根 B 、－6是36的平方根 C 、36的平方根是6 D 、36的算术平方根是6 15、下列说法正确的是（ ） A 、1的立方根是1± B 、24±= C 、81的平方根是3± D 、0>x 16、如果5||=x ，则x 等于（ ） A 、5± B 、5 C 、5- D 、236.2± 17、下列判断正确的是__________ A 、两个无理数的和仍是无理数 B 、任何数的平方根都是正数 C 、无理数都是有理数开方开不尽的数 D 、|－9|的负的平方根是－3
七年级上unit9单元测试题
Unit 9 单元测试题 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. I need ______ hour to get to school from home. A. a B. an C. the D. 不填 ( )17. They’ll be in Beijing ______ two months. A. on B. at C. from D. for ( )18. Jenny likes Tuesday ______ her favorite subject is on Tuesday. A. after B. but C. because D. so ( )19. Cindy doesn’t like history. She thinks it’s ______. A. difficult B. short C. interesting D. useful ( )20. The old woman ______ great fun. We all like her. A. is B. does C. looks D. sounds ( )21. —Are you ______ now? —Sorry, I am very busy. A. happy B. fine C. fat D. free ( )22. —What’s your sister’s favorite ______? —Brown. A. sport B. color C. book D. subject ( )23. Kate ______ English and art on Friday afternoon. A. gets B. has C. get D. have
数的开方单元测试(一)
数的开方单元测试（一） 一、选择题（每题3分，共30分） 1、下列说法不正确．．． 的是（ ） A 如果一个数有两个平方根，那么它的平方根的和为0 B 如果一个数只有一个平方根，那么它的平方根是0 C 任何数的决对值都有平方根 D 任何数的绝对值的相反数都没有平方根 2、一个实数与它倒数之和是2，则它的平方根是（ ） A 2 B ±2 C 1 D ±1 3、下列各数中没有平方根的是（ ） A-22 B 0 C 12 D （-4）2 4、4 1的算术平方根是（ ） A 12 B - 12 C 116 D ±12 5、若a 2=(-5)2 b 3=(-5)3 ,则a + b 的值为（ ） A 0 B ±10 C 0或10 D 0或-10 6、如果一个数的平方根是a+3及15，那么这个数是（ ） A 12 B 18 C-12 D -18 7、如果一个数的平方根与立法根相同，那么这个数是（ ） A 0 B ±1 C 0和1 D 0或±1 8、使式子23+x 有意义的实数x 的取值范围是（ ） A x ≥0 B x>- 23 C x ≥- 32 D x ≥- 23 9、在31-，0，4.0-，227 ，9，0.3，0.303003…（每相邻两个3之间依次多一个0），1π 中，无理数有（ ）个 A 0 B 1 C 2 D 3 10、与数轴上的点一一对应的是（ ） A 有理数 B 整数 C 无理数 D 实数 二、填空题（每题2分，共30分）
1.若x 2=9,则x=_________ 2.25的算术平方根是____________ 3.如果正数x 的平方根为a+2与3a-6,那么x=________ 4.若m 的平方根是±4，2n 的平方根是±5，则m+2n=__________ 5.若一个数的立方根等于这个数的算术平方根，则这个数是________ 6.一个负数a 的倒数等于它本身，则2+a =___________ 7._________ 8.当b=-1时，2)1(-b =________ 9.数轴上到原点的距离等于10的数是________ 10.若无理数a 满足不等式1＜a ＜4,请你写出两个你熟悉的无理数____ ___ 11.计算=+-+-33328)3()1( 12.比较大小：-3 13.若实数a 、b 满足(a+b-2)2+032=+-a b ,则a-b=______ 14.当m=-3时，=++m m m 22 15.已知2+x 与3-y 互为相反数，则xy=_______ 三、解答题（共40分） 1.求出下列各式中x 的值。（每题5分，共20分） （1）169x 2=100 (2)x 2-289=0 (3) 27(x-1)3=8 (4)3x 3+24=0 2.若m 、n 是实数，且023=-++n m , 求m 、n 的值（4分） 3.已知0)1(12=-++y x 求20043y x +的值（6分）
unit9测试题
英语人教七年级下Unit 9单元测评 （分数：100分时间：90分钟） Ⅰ．单项选择（10分） 1．The boy ______ tall and ______ short black hair. A．has；has B．has；is C．is；is D．is；has 2．My aunt is too ______，she wants to be slim（苗条的）． A．heavy B．tall C．short D．thin 3．Miss ______ has curly ______ hair. A．Brown；brown B．Brown；Brown C．brown；brown D．brown；Brown 4．Mr. Dean______ a medium build，and he has yellow hair. A．is B．has C．looks like D．isn't 5．—What does Mr. Chen look like? —______. A．He likes sports B．He is very quiet C．He is of medium build D．He likes wearing glasses 6．There is ______ milk in the glass and it's ______ bad. A．a little；a little bit B．a little；a bit of C．a little bit；a bit of D．a little；little 7．—Is Miss Li tall? —No，she isn't tall，and she isn't short，either（也）．She is ______. A．medium height B．medium build C．a little heavy D．thin 8．—______？ —She has big eyes and small nose. A．How old is she B．What does she do C．What does she look like D．How is she 9．Lily is ______ medium build ______ long blonde hair. A．in；of B．in；with C．of；of D．of；with 10．Tom ______ his father and his father ______ very young. A．looks like；looks like B．looks like；looks C．looks；looks like D．looks；looks Ⅱ．完形填空（10分） Johnny is twelve __26__ old. He is very tall and he loves __27__ basketball. His parents __28__ from Nanning. Sally is small and she __29__ glasses. She __30__ long curly hair. She likes __31__. She __32__ hard. Dave __33__ of medium height. He enjoys __34__ computer games. He loves to tell __35__. 11．A．year B．years C．/ D．years' 12．A．play B．plays C．to playing D．to play 13．A．is B．are C．comes D．be 14．A．not wear B．do wear C．doesn't wear D．don't wear 15．A．has B．have C．is D．are 16．A．sing B．singing C．sings D．don't sing 17．A．works B．working C．to work D．don't work
人教版八年级英语下册Unit9 单元综合考试测试卷
Unit 9 Have you ever been to a museum? 单选题 1. Lucy often practices the piano. A. play B.plays C.playing D.played 2. —Where is Ben? —He the teachers’office. He will be back soon. A. goes B.has gone to C.has been to D. went 3. —I’ve been to the Space Museum. —It’s really great. A. Me neither. B. Me, too. C.So I have. D.Neither I have. 4. Every year, people go to visit their factory. A. a thousand of B. thousands C. thousand of D.thousands of 5. In the factory, of the workers women. A. three quarters; are B.three quarter; are C.third quarters; is D.third quarter; is 6. They had a map with them,so they didn’t have any problem the hotel. A. find B. finds C. found D. finding 7. He feared his parents because he didn’t pass the English exam. A. to face B. face C. have faced D. faced 8. —The Amazing Spider Man 2 is on these days. It’s fantastic. —Really? But I it yet. A. didn’t see B. won’t see C.haven’t seen D.am not seeing 9. —Where is Mr. Zhao? —He to Mount Fanjing. He’ll come back a week. A. has been; in B. has gone; after C.has gone; in D.has been; after 10.Our math teacher in our school for 20 years and he her e when he was 23 years old. A. has taught; has come B. taught; comes C. taught; came D. has taught; came 11. Who the telephone many years ago? A. found out B. discover C. looked D. invented 12. You can’t find in such a small place. A. good anything to eat B. nothing good to eat C. anything good to eat D. anything good eating 13. — Wenzhou is really a beautiful city and the food is also very delicious. —So it is. Why not stay here for two days? A. other B. the other C. others D. another 14. you like swimming, fishing boating, you’ll have fun i n the Water Park. A. Whether; or B. Neither; or C. Either; or D. Both; and 15. The weather on the island is quite hot all year round, because it’s the equator. A. next B. close to C. far from D. behind 16.Most travelers think Hainan is a good place in summer. Do you want there for a few days? A.living; living B.to live; to live
《数的开方》单元测试题
八年级（上）《数的开方》测试题 命题教师：林剑飞 A . ( 5)2 C . 5是25的算术平方根; 7 . '、16的平方根是（ ） A . ± 4 B . 4 8下列写法不正确的是（ ） C . ± 2 D . 2 9 .如果一个数的立方根是这个数本身，那么这个数是（ ） A . 1 B . 1 C . 0 10 .计算-25 3 8的结果是（ 1. 2. 、选择题（每小题2分, 9的平方根是（ F 列各数中没有平方根的是 （ 共30分）: C . 3. 1 1 —的平方根等于 丄，其数学关系是 4. (3) a 没有平方根; 7是49的平方根; C . D . A . (1 )、(2) B . (1 )、(3) C . (2 )、(3) D . ( 3 )、 (4) 5 .如果一个数的平方根是 a 3及15，那么这个数是 ( ) A . 12 B . 18 C . 12 D . 18 6.卜列说法中，正确的是（ ) （4 ）只有正数才有平方根；其中正确的说法是 （ B . 16是36的算术平方 根; 2 A . 6是（6）的算术平方根; A . . 0.01 0.1 B . '、而 0.1 C . '、而 10 D . -.100 10 2| D . 5不是25的平方根;
C . 3 2,0,、、3, 3.141592623 , 4 , 0.23232323L , 0.2020020002 L 3 数有（ ） 12 .下列各数中都是无理数的是（ B . 3.15 14 .现有四个结论：①绝对值等于它本身的实数只有零；②相反数等于它本身的实数只有零③倒数等 于它本身的只有实数 1 :④算术平方根等于它本身的实数只有 1;其中正确的有（ 15 .下列说法正确的是（ 二、填空题：（每空3分，共39分） 1 . 一个正数如果有平方根，那么必定有 ____________ 个，且它们的关系是 ______________________ : 2. 如果1.2是m 的平方根，那么 m _____________ , m 的另一个平方根是 __________________ 3. _______________________________________________________ 一个正方形草地的面积是 121 m 2，则它的边长是 ___________________________________________________ m ； 4. 已知2x 4的算术平方根是 0,则x ______________ ； 5. 计算：3 ；91 __________ 。 6 . 8的立方根与 81的算术平方根的和为 ______________ ； 7.在数轴上离原点距离是 -5的点所表示的数是 _______________ ； &大于17小于-37的整数有 ________________ ； 9 . 3 27 的相反数是— —；3 2的绝对值是 __________ ； A . 〔2 , T , 38 B . 3'4, 3 , 0.3 C . .15 , ,.1000 3.14 D . 32 , 0, 13 .介于3与 之间的有理数是（ 11.在实数 中无理数的个 C . 3.1 A .无限小数是无理数 B .带根号的数是无理数 C .无理数是无限小数 D .无理数是开方开不尽的数
unit9 测试题
English test for Unit9Nov. 27th Total: 100 scores Time: 60 minutes By: Wang Feifei 一、基础闯关，小心陷阱（40） 1. Thomas Edison is a great _____________(invent). 2. 二、回顾原文（30分） Did you know that tea, the _________ _________ __________(最受欢迎的饮料) in the world was invented _________ _________(偶然). _________(虽然) tea wasn’t __________(bring) to the Western world until 1610, this beverage ___________ _________(被发现) over 3000 years before that. ________ _________ (根据) an _________(古老) Chinese legend ,the emperor Shen Nong discovered tea when he ________ ________(boil) drinking water over an open fire. Some __________(leaf) from a nearby bush ______ _________(掉进) the water and _________(保留)there for some time. He ________(注意) that the leaves in the water _________a ________ smell(发出一股迷人的