九年级第一学期期中练习
一单选
1 My teacher always tells _____reading is helpful .
A I
B me
C my
D mine
2 I usually go shopping with my mother _____ Sundays .
A in
B to
C at
D on
3 ---What is Jenny like , outgoing _____ shy ?
---- I think she is outgoing .
A but
B and
C or
D so
4 Larry is growing fast . Now he is even _____ than his father .
A tall
B taller
C tallest
D the tallest
5 ----_____we bring drinks and snacks into the concert?
----- No , you can’t .
A Can
B May
C Must
D Need
6 _____ is in the classroom . They are all on the playground .
A Everybody
B Somebody
C Anybody
D Nobody
7 I really miss my friend Kathy . She _____to another city last year .
A moves
B moved
C is moving
D has moved
8 ---_____ do you go to the library ?
--- About twice a month .
A How far
B How long
C How much
D How often
9 Mr. Smith , a famous scientist , ______ Beijing Garden Expo Parks next Thurday .
A visits
B visited
C will visit
D was visiting
10 The doctor asked me _____ more fruit and vegetables to keep healthy .
A to eat
B eating
C ate
D eat
11 They _____ a lot of people since they became volunteers in 2010 .
A help
B helped
C will help
D have helped
12 Flowers in my classroom ______ every day .
A water
B watered
C are watered
D were watered
13 I don’t remember ______ my new glasses yesterday .
A where I put
B where did I put
C where I will put
D where will I put
二完形填空
My favorite class at school was dance class. It was a new experience for me. At first, I didn’t think I’d like it, but I decided to give it a chance.
To begin with, it was__14__ to have to hold with a boy and dance. The steps were okay, and the music was okay, but boys were not really okay. The teacher was nice and funny, and she got us used to working together as a__15__. Then it wasn’t so strange working with a partner any more.
As the lessons__16___and I learned new dances like waltz(华尔兹), I really began to enjoy myself. Even being with partners wasn’t bad. In fact, I started enjoying dancing with partners who tried hard and know our steps. Some of the boys thought it was a__17___. And they didn’t take it seriously. I hated dancing with them, but I politely took my turn with them anyway.
To be a proper lady was another thing I learned while I was dancing. I never
thought much about it before, but the teacher expected me to__18___like a lady, which meant I had to accept dance partners politely___19__ I didn’t like them. Just like life, you sometimes have to do things you don’t want to, the teacher___20__. Yet, that didn’t mean I didn’t enjoy dancing with a boy who had the proper height and good steps to be a great partner.
As the classes neared their end, I was happy to hear I’d been__21__as a finalist. That meant I and my partner, Todd, would be representing my school and going dancing at a competition.
The competition was like__22__ out of a storybook. Everyone was smiling, wearing great clothes, and hair was done nicely. It was hard not to be__23___, but it was hard not to feel special, too. Todd and I, along with my teammates,___24__our way through the competition. It was hard, and all the other dancers were so good! It was sad not to win the competition, but a third place finish was__25____. Maybe next year our dancers would come in first place. I was proud I learned a lot. I just know I loved to dance, especially the waltz .
14 A. different B. difficult C. common D. strange
15.A. class B. club C. team D. task
16.A. went on B. went by C. came over D. came back
17.A. joke B. step C. lesson D. chance
18.A. look B. learn C. behave D. practice
19.A. as if B. so that C. ever since D. even though
20.A. agreed B. smiled C. replied D. explained
21.A. tested B. chosen C. known D. regarded
22.A. something B. everything C. anything D. nothing
23.A. surprised B. excited C. nervous D. serious
24. A. continued B. danced C. found D. took
25.A. comfortable B. acceptable C. reasonable D. enjoyable
三阅读理解
A
26. How many posts are there in the blog?
A. Three.
B. Four
C. Five
D. Six
27. What does Mary think of homework?
A. She likes it a lot.
B. She cares about it.
C. She doesn’t like it.
D. She doesn’t mind it.
28. Sarah is a______.
A. parent
B. writer
C. student
D. teacher
B
When Buster was brought into the animals' home, he was wet and smelly. But Jimmy who worked there know what soap and water and a good brushing could do. After a bath, Jimmy put Buster in a cage and gave him some food and fresh water. Buster wanted a home. He wanted a family. He wanted a yard. Most of all, he wanted someone to love him.
A man came over to the cage. Buster curled up on his blanket and closed eyes. “He’s no fun,” said the man. “He’s too quiet.” A family came along. Buster barked
and barked, so they would notice him. “ He’s too noisy,” said the mother. They all walked away. Other people passed by. “Too furry.” “TOO bony.” “Don’t give up,” Jimmy said to Buster. “Someone will want you.” Another family asked Jimmy to take Buster out of the cage. “He’s too big,” said the mother. “He might scare the baby.” The next family came along. “He’s too small,” said the father. “He wouldn’t be a good watchdog.” “Sorry, Buster,” said Jimmy.
At the end of the day, another family came along-a mother, father, and a boy. Buster didn’t try to book big or small. He didn’t wor ry about looking furry or bony. He was just plain Buster, an ordinary, brown, medium-sized dog.
The boy looked in to Buster’s brown eyes. Buster looked into the boy’s blue eyes. “Look, Mom,” he said. “This dog is just the right size for me.”
Buster went home to a family and a yard. Best of all, He went home with someone who loved him just the way he was- an ordinary, brown, medium-sized dog.
29 What did Buster get first at the animals’ home?
A. A bath.
B. A ball.
C. A rest
D. A meal.
30. What did Buster want most of all?
A. A place to play in.
B. A home to live in.
C. A loving owner.
D. A rich keeper.
31. What does the writer want to tell us in this story?
A. We must do everything well.
B. It’s n ice to keep a dog.
C. We should be just what we are.
D. It’s easy to clean a dog.
C
Do you believe that there might be life on other planets? Would you like to be the first “Earthling” to get in touch with an alien? Well, you can start your search from home. All you need is a computer and the Internet, and you can join the project of the US-based National Aeronautics and Space Administration(NASA).
NASA started the Search for Extra-Terrestrial Intelligence (SETI) project eight years ago. Its goal is to examine the radio signals (信号) from nearby stars. Researchers believe that a large number of stars in the universe could have planets orbiting (circling) around them. And they want to know if these planets have conditions suitable for life forms.
How does the project work? There is a huge radio telescope with a large bowl-shaped dish at Arecibo, Puerto Rico. It catches radio signals which are then fed in to SETI computers. The researchers have to study thousands of radio signals daily. They are looking for signals whose patterns (模式）would show the existence（存在）of hydrogen or water molecules that are necessary for life on Earth. They could be at it for years before showing a single positive result!
Of course, even the researchers know that they cannot do a fast job on their own. So they want as many helpers as possible. Even you ! To join search, just download SETI’s free software (SETI @home). What happens next is fun. While you are away from your computer, the SETI program in your computer downloads the information on radio signals received by the radio telescope. It studies the information and send the result back to the research center.
There are other benefits too of having the SETI project software in your computer.
When you leave your computer unattended, instead of seeing the usual screen saver, you can feast your eyes on an amazing 3-D chart on the screen. This shows that your computer is busy studying SETI data and searching for signs of alien life!
More than 1824500 people around the world are currently in the program and more are joining in every day. It’s slim chance, but wouldn’t it be fantastic if your computer were to be the first to discover an alien signal!
32 Why do researchers examine the radio signals from nearby stars?
A. They plan to help people who live on the stars.
B. They need to make sure that the stars have planets.
C. They have to keep in touch with the aliens on the stars.
D. They wonder i f the stars’ planets are suitable for life forms.
33. What does a helper’s computer do in the research?
A. It finds the radio signals.
B. It looks for other planets.
C. It shows a positive result.
D. It studies the information.
34. What’s the writer’s purpose in writing the passage?
A. To prove the value of a research.
B. To invite people to join a project.
C. To suggest the existence of aliens.
D. To advise people to study planets.
D
In all the world’s cultures, people sing, play instruments, and celebrate with music. It plays such an important role in our lives that whole fields work hard at its study, including one looking at the biology of music. Experts are finding that because of the way our brains process(处理) music, learning to play an instrument or just listening to music can have a wide range of benefits.
Music education has received a lot of attention. Learning to play an instrument can help children improve math, science, and language skills. One study in Canada tracked （追踪）children’s IQ scores for nine months, discovering that children who studied music had the biggest test score improvements. The secret may lie in the way reading music and playing notes uses several areas of the brain, helping develop our ability to learn school subjects.
Music is also used for medical purposes, such as the treatment of diseases which affect memory. Scientists explain that one area near the forehead connects music with memories. That’s why an old song can remind you of something that happened years ago. For patients suffering from certain diseases, listening to music can help unlock memories by building up musical pathways to memories.
Studies of the music-brain connection often concentrate on classical music, since it activates both the left and right sides of brains. One study found the brain activity was the highest during the short breaks between the movements of a piece of music. During each break, the pers on’s brain predicted what would come next, while organizing what he had just heard. This process is similar to the way our brain organizes information. It may explain why classical music can help improve memory. Some people take the music- brain connection to another level by listening to personalized “brain music.” which can help a person concentrate and prepare for a difficult task.
It’s amazing how attuned our brains are to music.Some scientists even think we’re
born with the ability to learn music, just as we all have the skills to learn language. After all, children without any training often make up songs while playing. With the evidence of music’s benefits pouring in, it’s no wonder some countries make music study a part of their education systems. People are realizing that music is more than just a form of entertainment.
35. In the study in Canada, who had the biggest IQ score increase?
A. The children who did well in science.
B. The children who had good memories.
C. The children who had fun learning languages.
D. The children who studied music for some time.
36. The writer probably agrees that ______.
A. we get a lot from teaching children to make up songs.
B. it takes steps to make full use of music-brain connection.
C. memory can be improved by training to organize information
D. music treatment helps build up unlocked pathways to memories
37. What does the underlined sentence in the last paragraph mean?
A. It’s great that our brains g o well with music.
B. It’s wonderful for us to listen to brain music.
C. It’s surprising that music makes our brains active.
D. It’s fantastic to know how brains work with music.
38. What may be the best title for the passage?
A. Music and Memory
B. Music and the Mind
C. The Biology of Music
D. The Benefits of Music
四、五选四
Adopt(认领) a Highway
Hello. I’m Jane. My class wants to work together to help the community.__39__. This program brings people together to pick up little along the roads. We think it would be a great idea for students to join the program and adopt a highway.
Adopting a highway is not like adopting a pet. When a highway is adopted, only part of the highway is cared for by a group of people.__40___. Each group gets its own sign that has the name of the group printed on it. The sign is put up alongside the road. This sign lets drivers know who is keeping that area of the road clean. The program is a great way for people to help their community look nicer.___41__. This saves money. Finally, people may try harder to keep roads clean.
___42___. If you want to feel great and keep our roads clean, please come with your parents to the meeting next week and try to pick an area to adopt and clean up.
A. It was relaxing to go for a ride on the highway last week.
B. The group agrees to work every week to keep its part clean.
C. Also, the state does not have to send out many road workers.
D. Last month we learned about the Adopt-a-Highway Program.
E. We will need volunteers to help care for our adopted highway.
五、阅读短文，根据短文内容回答问题。（共10分，每小题2分）
When we want to find out what the weather will be like tomorrow, we usually
turn on the TV. But people also needed to forecast (predict) the weather before they had TV. How did they do it in the past? They’d find an outdoor space, look up, look around, and listen.
Look UP
Red sky at night, sailor’s delight!
Red sky in the morning, sailors take warning!
This weather poem was written a long time ago, but it still works today. Weather in many parts of the world moves from west to east. Whatever weather is in the west tonight will probably be with us tomorrow. So a red sky at night, as the sun is setting, usually means a sunny day for the next day.
Look Around
Animals, insects, and plants are natural weather forecasters.
When a summer storm is coming , you may notice that dogs, cows and horses grow restless. These animals don’t have some mysterious sixth se nse, but they do have super-sensitive hearing. Scientists think the animals can forecast thunderstorms （雷雨）because they can hear the sound waves(声波)made by them many miles away.
When leaves show their undersides, be very certain, rain happens.
Listen
If you hear a cricket, it can tell you the exact temperature. Just count its chirps (啾啾声) for fourteen seconds and then add forty. This will give you the Fahrenheit temperature of the cricket within a very few degrees. Since crickets are cold-blooded, the temperature of the cricket is about the same as the air around it.
So learn to predict the weather the way people did in the past. Get outside, look up, look around, and listen. Soon you’ll be your very own weather forecaster.
43. Did people need to forecast the weather before they had TV?
__________________________________________________ .
44. What does a red sky at night mean for the next day?
___________________________________________________ .
45. Why can animals forecast thunderstorms?
____________________________________________________ .
46. How can we know the temperature from a cricket?
____________________________________________________ .
47. What does the passage mainly tell us?
______________________________________________________________.
六、完成句子（共10分，每小题2分）
48. 为什么不给露西提点建议呢？
__________________________ give Lucy some suggestions?
49. 别再熬夜了，否则你明天上学会迟到的。
Don’t stay up any more, or you will___________ school tomorrow.
50. 对大多数孩子来说，这个故事太长了，一周内读不完。
For most children, the story is _________________finish in a week.
51. 你最好想出一个解决此问题的新方法。
__________________________________ a new solution to the problem.
52. 为了实现梦想，我们在学业上花足够的时间很有必要。
It’s ___________________________________________ our dreams .
人教版九年级上册数学期中试卷及答案 集团标准化办公室：[VV986T-J682P28-JP266L8-68PNN]
新人教版2014年秋季九年级数学上期中测试题 一、选择题（3分×10=30分） 1．下列方程，是一元二次方程的是（ ） ①3x 2+x=20，②2x 2-3xy+4=0，③x 2-1x =4，④x 2=0，⑤x 2-3x +3=0 A ．①② B ．①②④⑤ C ．①③④ D ．①④⑤ 2．在抛物线1322+-=x x y 上的点是（ ） A.（0，-1） B.?? ? ??0,21 C.（-1，5） D.（3，4） 3.直线225-=x y 与抛物线x x y 2 12-=的交点个数是（ ） A.0个 B.1个 C.2个 D.互相重合的两个 4.关于抛物线c bx ax y ++=2（a ≠0），下面几点结论中，正确的有（ ） ① 当a?0时，对称轴左边y 随x 的增大而减小，对称轴右边y 随x 的增大而增大，当a?0时，情况相反. ② 抛物线的最高点或最低点都是指抛物线的顶点. ③ 只要解析式的二次项系数的绝对值相同，两条抛物线的形状就相同. ④ 一元二次方程02=++c bx ax （a ≠0）的根，就是抛物线c bx ax y ++=2与x 轴 交点的横坐标. A.①②③④ B.①②③ C. ①② D.① 5．方程（x-3）2=（x-3）的根为（ ） A ．3 B ．4 C ．4或3 D ．-4或3 6．如果代数式x 2+4x+4的值是16，则x 的值一定是（ ） A ．-2 B ．， C ．2，-6 D ．30，-34 7．若c （c ≠0）为关于x 的一元二次方程x 2+bx+c=0的根，则c+b 的值为（ ） A ．1 B ．-1 C ．2 D ．-2 8．从正方形铁片上截去2cm 宽的一个长方形，剩余矩形的面积为80cm 2，?则原来正方形的面积为（ ） A ．100cm 2 B ．121cm 2 C ．144cm 2 D ．169cm 2 9．方程x 2+3x-6=0与x 2-6x+3=0所有根的乘积等于（ ） A ．-18 B ．18 C ．-3 D ．3 10．三角形两边长分别是8和6，第三边长是一元二次方程x 2-16x+60=0一个实数根，则该三角形的面积是（ ） A ．24 B ．48 C ．24或 D ． 二、填空题（3分×10=30分）
五年级数学下册期中知识自查卷 姓名： 班级： 成绩 一、 口算。（10分钟完成，6分，另卷） 3×1.5＝ 2.5×4＝ 0÷0.9= 4÷0.2＝ 0.56÷0.7＝ 0.24×5＝ 0.2×5＝ 2.1－0.87＝ 3.54－3.5＝ 3.4－1.5＝ 12÷0.6＝ 8×0.125＝ 二、仔细想，认真填。12分 1、0.4小时=（ ）分 820平方厘米=（ ）平方分米 7.4千米=（ ）千米（ ）米 2吨200千克=（ ）吨 2、在○里填“ ＞”、“＜”或“ ＝ ” 4.3×0.85○4.3 6.7 ÷0.12○6.7 8×0.33○3.3× 0. 8 2.3÷1.26○ 2.3 ×1.26 3、1里有（ ）个0. 25， 0.5的3.2倍是（ ）。 4、3.16 ×2.4的积有( )位小数，如果把两个因数的小数点都去掉，积会 ( )。 5、无限小数3.9595……是（ ）小数，循环节是（ ），保留整数是（ ），精确到十分位是（ ）。 6、5.8× 2.7+5.8 ×7.3=□ ×(□+□)，这应用了乘法（ ）律。 7、4.6÷ 0.23=( ) ÷23 3.15÷ 1. 5=( ) ÷15 8、一堆煤有a 吨。已经烧了3天，烧了b 吨。平均每天烧（ ）吨煤，还剩（ ）吨煤。（用含有字母的式子表示） 8、把??603.5，?630.5，5.36， 5.306按从大到小的顺序排列起来。 9、黄师傅加工一种零件，2分钟加工了4个，平均每分钟加工（ ）个零件，加工一个零件要（ ）分钟。 三、我是小法官。（对的在括号里打“√”，错的打“×”）4分 1、0.4898989是循环小数。 （ ） 2、一个数（0除外）除以一个小数，商不一定大于被除数 。 ( ) · ·
初一年级第一学期期中测试题一 七年级数学 注意事项: 本试卷共三大题25小题，共4页，满分150分．考试时间120分钟． 1．答卷前，考生务必在答题卡第1、3面上用黑色字迹的钢笔或签字笔填写自己的考号、姓名；再用2B铅笔把对应考号的标号涂黑． 2．选择题和判断题的每小题选出答案后，用2B 铅笔把答题卡上对应题目的答案标号涂黑；如需改动，用橡皮擦干净后，再选涂其他答案标号；不能答在试卷上． 3．填空题和解答题都不要抄题，必须用黑色字迹的钢笔或签字笔作答，涉及作图的题目，用2B铅笔画图．答案必须写在答题卡各题目指定区域内的相应位置上；如需改动，先划掉原来的答案，然后再写上新的答案；改动的答案也不能超出指定的区域．不准使用铅笔、圆珠笔和涂改液．不按以上要求作答的答案无效．
4．考生不可以．．．使用计算器．必须保持答题卡的整洁，考试结束后，将答题卡交回． 第Ⅰ卷（100分） 一、 细心选一选（本题有10个小题，每小题3分，满分30分，下面每小题给出的四个选项中，只有一个是正确的. ） 1. 7-的相反数是（ ）. A . 7 B . 7 1 C. 7 1 - D . 7- 2． ()2 3-=（ ）. A ． 6 B ． 9 C ． -6 D ．-9 3. 舟曲特大泥石流发生后，全国人民踊跃捐款捐物，到8月12日17时止，累计捐款约为3068万元，将3068用科学记数法表示为（ ）. A . 3 1068.3? B . 3 10068.3? C . 2 1068.30? D . 4103068.0? 4. 下列各式正确的是（ ）.
A ．358-=-- B ．ab b a 734=+ C ．5 4x x x -= D ．()572=--- 5. 下列各组式中是同类项的是（ ）. A ．a 与22 1a - B ．z y x 32 与32y x - C ．2x 与2y D ．2 49yx 与y x 25- 6. 方程22x x =-的解是（ ）. A ．1 B ． 1- C ． 2- D ． 2 7. 去括号：()a b c --+=（ ）. A ．a b c -++ B ．a b c -+- C ．a b c --+ D ．a b c --- 8. 下列说法正确的是（ ）. A ．0.600有4个有效数字 B ．5.7万精确到0.1 C ．6.610精确到千分位 D ．410708.2?有5个有效数字 9. 如图，a 、b 两个数在数轴上的位置如图所示， 则下列各式正确的是（ ）. 第9题
上海市九年级上学期期中数学试题 姓名:________ 班级:________ 成绩:________ 一、单选题 (共10题；共20分) 1. （2分）在某次国际乒乓球单打比赛中，甲、乙两名中国选手进入最后决赛，那么下列事件为必然事件的是（） A . 冠军属于中国选手 B . 冠军属于外国选手 C . 冠军属于中国选手甲 D . 冠军属于中国选手乙 2. （2分） (2016九上·仙游期末) 抛物线的顶点坐标为（） A . B . C . D . 3. （2分） (2019九上·海南期末) 设P为⊙O外一点，若点P到⊙O的最短距离为3，最长距离为7，则⊙O 的半径为（） A . 3 B . 2 C . 4或10 D . 2或5 4. （2分） (2019九上·萧山月考) 已知A，B，C在⊙O上，△ABO为正三角形，则（） A . 150° B . 120° C . 150°或30° D . 120°或60° 5. （2分）(2018·宁波模拟) 抛物线y=x2+4x+5是由抛物线y=x2+1经过某种平移得到，则这个平移可以表述为（） A . 向左平移1个单位 B . 向左平移2个单位 C . 向右平移1个单位
D . 向右平移2个单位 6. （2分）如图，⊙O的半径为1，A,B,C是圆周上的三点，∠BAC=36°，则劣弧BC的长是（） A . B . C . D . 7. （2分）在四边形的四个内角中，钝角的个数最多为 A . 1个 B . 2个 C . 3个 D . 4个 8. （2分） (2017九上·宣化期末) 一小球被抛出后，距离地面的高度h（米）和飞行时间t（秒）满足下列函数解析式：h=﹣3（t﹣2）2+5，则小球距离地面的最大高度是（） A . 2米 B . 3米 C . 5米 D . 6米 9. （2分） (2017九上·临沭期末) 如图所示，抛物线y=ax2+bx+c（a≠0）与x轴交于点A（-2，0）、B（1，0），直线x= 与此抛物线交于点C，与x轴交于点M，在直线上取点D，使MD=MC，连接AC，BC，AD，BD，某同学根据图象写出下列结论：①a-b=0；②当x＜时，y随x增大而增大；③四边形ACBD是菱形；④9a-3b+c ＞0．你认为其中正确的是（）
2017—2018学年度第一学期期中练习题 请欣赏颜真卿的《多宝塔碑》选帖，完成（1）（2）题。 （1）颜真卿的这幅字帖属于体（字体）， 其中“兆”字的第一笔是。（A.点B.撇）（2分） 下面是古人评价书法的四句话。根据这幅字帖的特点， 判断其中对这幅字帖评价正确的一项是（2分） A.字形扁方，左波右磔，蚕头燕尾；曲折方园，点画分明。 B.大小参差，长短相配，错落有致，点画皆映带而生，气脉顺畅。 C.字形偏修长，行笔于险劲之中寻求稳定，疏密聚散对比强烈。 D.结体宽博，端庄平稳，正气饱满，已初显雄浑豪迈的书风。 2.京剧是中国五大戏曲剧种之一，被视为中国国粹。请根据要求， 完成下面（1）-（3）题。 （共8分） （1）京剧有许多内容都取材于中国古典传统小说，尤以“三国戏”居多。请判断属于“三国戏”的剧目有哪些，将答案记在答题纸的横线处。（3分） A.《定军山》 B.《捉放曹》 C.《夜奔》 D.《十字坡》 E.《借东风》 （2）京剧《单刀会》，表现的是三国时关羽凭借智勇单刀前赴鲁肃所设宴会，最终安全返回的故事。一位同学观看之后感慨很多，创作一幅对联，请根据《三国演义》的内容，请对联补充完整。（2分） 【上联】生蒲州，事豫州，守徐州，战①，万古神州有赫； 【下联】兄玄德，弟翼德，释②，擒庞德，千秋圣德无双。 （3）学校组织同学们观看了传统京剧专场演出，下面这段文字是一位同学写的观后感。其中有 一处标点使用不当，还有两个错字。请你分别找出来并加以修改。（3分） 京剧已有200年历史，被称为是中国戏曲三鼎甲“榜首。”在观看的过程，演员们的一招一式， 行云流水，美仑美奂，让我们不由得发出了由忠的赞叹。他们的每一个细节，都做到了精益求 精。结束时，掌声席卷了整个剧场，叫好声一浪高过一浪。精彩的背后是努力与坚持，为这些 传统戏曲艺术家点赞！ 默写（共8分） （1）诸葛亮在《出师表》中陈述临危受命的千古名句是，。 （2）辛弃疾的《破阵子?为陈同甫赋壮词以寄之》堪陈“壮词”：既有“”的壮阔场面，也有“，” 的战斗激烈场面，更有“”的悲壮情怀。
2018-2019学年九年级（上学期）期中考试数学试卷 一、精心选一选，相信自己的判断（本大题共10个小题每题3分，共30分在每小题给出的四个选项中只 有一个答案是正确的，请将正确答案的序号直接填入下表中） 1．下列手机手势解锁图案中，是中心对称图形的是（） A．B． C．D． 2．用配方法解方程x2﹣4x﹣5＝0时，原方程应变形为（） A．（x+2）2＝9 B．（x+4）2＝21 C．（x﹣4）2＝21 D．（x﹣2）2＝9 3．已知x＝2是方程（3x﹣m）（x+3）＝0的一个根，则m的值为（） A．6 B．﹣6 C．2 D．﹣2 4．将抛物线y＝﹣3x2平移，得到抛物线y＝﹣3 （x﹣1）2﹣2，下列平移方式中，正确的是（）A．先向左平移1个单位，再向上平移2个单位 B．先向左平移1个单位，再向下平移2个单位 C．先向右平移1个单位，再向上平移2个单位 D．先向右平移1个单位，再向下平移2个单位 5．如图所示，将一个含30°角的直角三角板ABC绕点A旋转，使得点B，A，C′在同一条直线上，则三角板ABC旋转的角度是（） A．60°B．90°C．120°D．150° 6．欧几里得的《原本》记载，形如x2+ax＝b2的方程的图解法是：画Rt△ABC，使∠ACB＝90°，BC＝，AC＝b，再在斜边AB上截取BD＝．则该方程的一个正根是（）
A．AC的长B．AD的长C．BC的长D．CD的长 7．某树主干长出若干数目的支干，每个支干又长出同样数目小分支，主干、支干和小分支总数是57．若设主干长出x个支干，则可列方程是（） A．（1+x）2＝57 B．1+x+x2＝57 C．（1+x）x＝57 D．1+x+2x＝57 8．若t是一元二次方程x2+bx+c＝0的根，则判别式△＝b2﹣4c和完全平方式M＝（2t+b）2的关系是（）A．△＝M B．△＞M C．△＜M D．大小关系不能确定 9．如图，点C是线段AB的黄金分割点（AC＞BC），下列结论错误的是（） A．B．BC2＝AB?BC C．D． 10．已知二次函数y＝ax2+bx+c（a≠0）的图象如图所示，有下列5个结论： ①abc＞0；②b＜a+c；③4a+2b+c＞0；④2c＜3b；⑤a+b＞m（am+b）（m≠1的实数）． 其中正确的结论有（） A．2个B．3个C．4个D．5个 二、细心填一填，试试自己的身手！（本大题共6小题，每小题3分，共18分 11．若x2＝2，则x＝． 12．已知一个一元二次方程，它的二次项系数为1，两根之和为﹣6，两根之积为﹣8，则此方程为．13．如图，点P是等边三角形ABC内一点，且PA＝3，PB＝4，PC＝5，若将△APB绕着点B逆时针旋转后得到△CQB，则∠APB的度数．
2020—2020学年度第一学期期中练习2020.11.3 八年级英语 听力理解（共25分）. 一、听下面5个句子，从题中所给的A、B、C三个选项中选出与所听句子内容相符的图片的最 佳选项。每句读两遍。( 共5分，每小题1分) ( )1. . A B C ( )2. A. B. C. ( ) 3. A. B. C. ( ) 4. A. B. C. ( ) 5. A. B. C.
二、听下面的5 组对话，根据问题，从所给的A、B、C三个选项中选出正确的答语。每段对话 读两遍。( 共5分，每小题1分) ( ) 6、What color are Lisa’s clothes ? A. Red B. Blue C. Brown ( )7、Who dances better? A.Amy B. Betty C. May ( )8、Who thinks the food is the most expensive ? A. Jack’s brother B. The girl C. Jack ( )9、What can Peter do ? A.Run very fast. B. Sing fast songs well. C. Write songs himself. ( )10、When does Bob want to go to the movies ? A. This evening. B. Tomorrow morning. C. Tomorrow evening. 三、听下面的2 组对话，根据问题，从所给的A、B、C三个选项中选出正确的答语。每段对话 读两遍。( 共5分，每小题1分) 听第一段对话，回答11-12小题。 ( ) 11.Who is the tallest in Kevin’s class? A. Kevin. B. Bill. C. Lucy. ( ) 12.When was the talent show? A. Last Monday. B. Last Tuesday. C. Last Thursday. 听第二段对话，回答第13-15小题。 ( )13. How does Tina look? A. Tired. B. Excited C. Sad ( )14. What movie did Tina watch yesterday? A. An action movie B. A comedy. C. A scary movie ( )15. Where did Tina watch the movie ? A. In the cinema B. At her home C. At the boy’s home 四、听下面的对话，根据所听内容，完成表格信息。每空一词。每段对话读两遍。( 共10分，每小题2分) Time On 16 . People Linda, Ted and Julie. Things they did They went to 17 clothes stores and bought some clothes in the 18 store in the morning. They went to a restaurant for lunch. The food was 19 but not delicious. They watched an action movie and a(n) 20 show in the afternoon. 16. 17. 18. 19. 20. _____________
人教版九年级上册数学期中考试试题 一、选择题（本大题共12小题，每小题3分，共36分） 1．一元二次方程x（x﹣2）=0的解是（） A．x=0 B．x1=﹣2 C．x1=0，x2=2 D．x=2 2．下列图案中，不是中心对称图形的是（） 3．抛物线y=﹣x2开口方向是（） A．向上B．向下C．向左D．向右 4．用配方法解方程x2﹣2x﹣5=0时，原方程应变形为（） A．（x+1）2=6 B．（x﹣1）2=6 C．（x+2）2=9 D．（x﹣2）2=9 5．二次函数y=﹣2（x﹣1）2+3的图象的顶点坐标是（） A．（1，3）B．（﹣1，3） C．（1，﹣3） D．（﹣1，﹣3） 6．如图，四边形ABCD是正方形，△ADE绕着点A旋转90°后到达△ABF的位置，连接EF，则△AEF的形状是（） A．等腰三角形 B．直角三角形 C．等腰直角三角形D．等边三角形 7．一元二次方程x2+2x+2=0的根的情况是（） A．有两个相等的实数根B．有两个不相等的实数根 C．只有一个实数根D．无实数根 8．若将抛物线y=x2向右平移2个单位，再向上平移3个单位，则所得抛物线的表达式为（） A．y=（x+2）2+3 B．y=（x﹣2）2+3 C．y=（x+2）2﹣3 D．y=（x﹣2）2﹣3 9．某校成立“情暖校园”爱心基金会，去年上半年发给每个经济困难的学生600元，今
年上半年发给了800元，设每半年发给的资金金额的平均增长率为x，则下面列出的方程中正确的是（） A．800（1﹣x）2=600 B．600（1﹣x）2=800 C．800（1+x）2=600 D．600（1+x）2=800 10．设A（﹣2，y1），B（1，y2），C（2，y3）是抛物线y=﹣（x+1）2+1上的三点，则y1，y2，y3的大小关系为（） A．y1＞y2＞y3B．y1＞y3＞y2C．y3＞y2＞y1D．y3＞y1＞y2 11．如图，△ABC中，将△ABC绕点A顺时针旋转40°后，得到△AB′C′，且C′在边BC上，则∠AC′C的度数为（） A．50°B．60°C．70°D．80° 12．二次函数y=ax2+bx+c的图象如图所示，则一次函数y=bx+a的图象不经过（） A．第一象限B．第二象限C．第三象限D．第四象限 二、填空题（本大题共6小题，每小题3分，共18分） 13．点（﹣2，1）关于原点对称的点的坐标为． 14．二次函数y=2（x﹣3）2﹣4的最小值为． 15．若x=2是一元二次方程x2+x﹣a=0的解，则a的值为． 16．若函数是二次函数，则m的值为． 17．已知方程5x2+kx﹣10=0的一个根是﹣5，则它的另一个根是． 18．在等边△ABC中，D是边AC上一点，连接BD，将△BCD绕点B逆时针旋转60°，得到△BAE，连接ED，若BC=5，BD=4．则下列四个结论：①AE∥BC；②∠ADE=∠BDC；
四年级数学第一学期期中练习 一、计算题。（24分） 成绩 1、直接写出得数。（10分） 240÷60＝ 78÷13＝ 750÷50= 23×6＝ 880÷20= 0×84＝ 640÷40＝ 960÷96＝ 450÷15＝ 52÷3= 2、列竖式计算，带☆的要验算。（14分） 476÷51 301÷43 ☆507÷67 ☆495÷87 二、填空题。（30分，第6题2分） 1、□46÷52，要使商是两位数，□最小填（ ）；要使商是一位数，□最大填（ ）。 2、在计算355÷58，一般把58看作（ ）来试商，商的最高位是在（ ）位。 3、264÷28的商是（ ）位数，试商可以把28看作（ ）来试商，这时商会偏（ ）。 4、在括号里填上合适的数。 10升=（ ）毫升 240分＝（ ）时 120时＝（ ）日 5、在括号里填上“升”或“亳升”。 一桶食用油5（ ） 一瓶果汁330（ ） 一瓶眼药水6（ ） 一桶纯净水 19 （ ） 6、把45-12=33和5×33=165合并成一道综合算式是_________________。 7、□÷25=16……△，□最大是（ ）。 8、根据470÷20=23……10，直接写出下面算式的商和余数。 47÷2=（ ）……（ ） 4700÷200=（ ）……（ ） 学校------------------------------------- 姓名----------------------- 班级----------------------- 学号------------------ 密 --------------------------------------------- 封 ----------------------------------------------------------- 线----------------------------
2017—2018学年度第一学期高一年级期中考试数学试题 第Ⅰ卷 一、选择题：（本题共12小题，每小题5分，共60分 ） 1．设集合{|32}M m m =∈-<
2014—2015第二学期期中考试 英语试题 一、单项选择（15分） （）1. If you see someone who is in trouble, you should try to . A. take him out B. help him out C. help out him D. give out him （）2.—Another good idea! And we could each call up ten people and ask them to come. —Hey, we’re a lot of good ideas, aren’t we? A. getting along with B. coming up with C. catching up with D. doing well in （） 3. —Let’s go hiking this Saturday, shall we? —Sounds great. I agree you. A.on B.for C.at D. with （）4.I’m not sure whether I can hold a party in the open air, because it the weather. A. stands for B.depends on C.lives on D.agrees with （）5.I have some problems with my English writing.Can you give me some ? A.advice B.advices https://www.doczj.com/doc/d61632611.html,rmation D.messages （）6.Parents often their children some good advice. A.offer; with B.offer; / C.provide; with D.both B and C （）7.In China and some other countries, it is impolite to speak loudly you are having a meal. A.before B.while C. after （）8.The little boy cried loudly just now,but now he fell . A.sleep B.asleep C.sleeping D.sleepy （）9.Most people are building a paper factory near here.They are worried the river will get polluted. A.for B.with C.against D.beyond （）10.David got married Mary in 1996. A.at B.to C.with D.of （）11.English is interesting we all like it. A.such; that B.so; that C.too; to D.enough; to
上海市九年级上学期期中数学试卷新版 一、选择题 (共10题；共20分) 1. （2分）一元二次方程的二次项系数、一次项系数、常数项分别是（） A . B . C . D . 2. （2分）用配方法解方程x2﹣8x+3=0，下列变形正确的是（） A . （x+4）2=13 B . （x﹣4）2=19 C . （x﹣4）2=13 D . （x+4）2=19 3. （2分）(2017·平南模拟) 下列说法中正确的是（） A . 掷两枚质地均匀的硬币，“两枚硬币都是正面朝上”这一事件发生的概率为 B . “对角线相等且相互垂直平分的四边形是正方形”这一事件是必然事件 C . “同位角相等”这一事件是不可能事件 D . “钝角三角形三条高所在直线的交点在三角形外部”这一事件是随机事件 4. （2分）如图，在四边形ABCD中，E是BC边的中点，连结DE并延长，交AB的延长线于F点，AB=BF。添加一个条件，使四边形ABCD是平行四边形。你认为下面四个条件中可选择的是（）
A . AB=BC B . CD=BF C . ∠A=∠C D . ∠F=∠CDE 5. （2分）平行四边形ABCD中，AC、BD交于O点，下列条件中，能使四边形ABCD 是矩形的是（） A . AC⊥BD B . AO=BO C . AB=AD D . AO=CO 6. （2分）如图，已知点P是不等边△ABC的边BC上的一点，点D在边AB或AC上，若由点P、D截得的小三角形与△ABC相似，那么D点的位置最多有（） A . 2处
C . 4处 D . 5处 7. （2分）(2018·吉林模拟) 如图，、分别是、的中点，则 （） A . 1∶2 B . 1∶3 C . 1∶4 D . 2∶3 8. （2分）某工厂要建一个面积为130m2的仓库，仓库的一边靠墙（墙长为16m），并在与墙平行的一边开一道1m宽的门，现有能围成32m的木板，求仓库的长与宽？若设垂直于墙的边长为x米，则列出的方程为（） A . x?（32﹣2x+1）=130 B . C . x?（32﹣2x﹣1）=130 D . 9. （2分）若三角形的两边长5和12，第三边是方程的根，则它的周长为（）.
四年级期中练习卷 班级姓名家长签名 一、基础 1、正确抄写 那笛子简直就是一只有灵性的小鸟，时而像在无限清幽的深谷里啼鸣；时而仿佛在春天的林木深处喧噪；时而又变为群鸟的啁啾…… 2、把词语补充完整 金碧罗布不绝居业 才华撕裂风雨不改 积累 3、写出带有反义词的成语； 写出形容很专心的四字词语： 4、按要求改写句子 换一种说法，句意不变 （1）学会使用电脑是一件快乐的事。 （2）淮南的柑橘到淮北只能结又小又苦的枳，难道不是因为水土不同吗？ 用关联词把两句话合并成一句话 好心的东郭先生救了狼。狼还是要吃掉东郭先生。 5、根据课文内容填空。（包括名言） ①同学们，在第四单元学习中，我们跟随作者进行了一次“纸上”旅行，欣赏了北京的，认识了西安的，漫游了……让我们、。
②爱迪生曾说过：失败也是，它和。我们从揭开雷电之迷的、的华佗、的哥伦布的经历中，感受到成功的奥秘在于。 ③请默写一首本学期学习的描写景色的古诗。注意书写格式。 二、阅读 城里每一个庭院都栽了很多树。有桉树、椰子树、橄榄树、凤凰树，还有别的许多亚热带树木。初夏，桉树叶子散发出来的香味，飘得满街满院都是。凤凰树开了花，开得那么热闹，小城好像笼罩在一片片红云中。 城的公园更美。这里栽着许许多多榕树。一棵棵榕树就像一顶顶撑开的绿绒大伞，树叶密不透风，可以遮太阳，挡风雨。树下摆着石凳，每逢休息的日子，石凳上总是坐满了人。 1、短文是从和两个方面来描写美丽的海滨小城的。 2、仔细读第1自然段，再回答问题： ①从这一段的中心句，可以看出庭院的主要特点是。 ②“初夏，桉树叶子散发出来的香味，飘得满街满院都是。”试着读一读，你觉得哪个词语要读重音？请在它下面加点。 ③第4句是个比喻句，把比作了“红云”。 A、凤凰树的枝叶 B、凤凰树的花 C、小城 D、火烧云 ④“开得那么热闹”中的“热闹”，意思是。 A、小城赏花的人很多 B、凤凰花很多 C、凤凰花颜色鲜艳，数量多 D、凤凰树下人很多 3、仔细阅读第2自然段，联系上下文理解“一棵棵榕树就像一顶顶撑开的绿绒大伞”
人教版一年级数学上册期中测试卷 一、想一想，画一画。（15分） 1、多的画√，少的画○。 2、长的画√，短的画○。 3、高的画√，矮的画○。 4、看数画出缺少的珠子。 5、按要求在（）里画一画。（6分） ●▲□★△○☆■ 1、从左数起第一个是（），第6个是（）。 2、★的左面是（），右面是（）。 3、把右边的三个图形圈起来。
二、请你先数一数，再写数。（5分） 三、把同样多的用线连起来。（8分） 四、看谁算得都对！（12分） 五、想一想，填一填。（22分） 1、 在 里填上“＞”“＜”或“=”。（8分） 9 5 0 1 3 3 7 9 7 8 3 2 6 5 4 4 2、（6分） 7 3 6 3 2 2 3 6 3 6－2＝ 1＋2＝ 4－4＝ 1＋1＝ 7－4＝ 5－4＝ 2＋3＝ 4＋1＝ 0＋0＝
3、在里填上“＋”或“－”。（8分） 4 ＝ 5 1 ＝4 5 2＝3 0 1＝1 7 ＝9 8 ＝6 3 3＝0 4 1＝3 六、选择题。（在括号里填上正确答案的字母）（6分） 1、比3多（）的数是5。 A. 1 B. 2 C. 4 D. 3 2、在1、2、 3、 4、5这些数中，最大的数是（）。 A. 1 B. 2 C. 5 D. 3 3、 排第（）。 从左数起， A. 2 B. 3 C. 4 D. 5 七、数一数，填一填。（8分） 1、□○○□ (1)○有( )个。有( )个。 (3)□有( )个。 (4)△有( )个。
2、 八、看图列式计算。（24分）△△▲▲▲
九、我思考我进步（10分） 1、小华家上面有3层，下面有2层，这幢楼共有（）层。 2、下面三个算式中，△□○各代表什么数？ ○－2＝7 ○=（） ○＋△＝10 △=（） △＋□＝6 □=（） 祝贺你做完了全部题目，如果还有时间，请赶快检查一下吧!
2016—2017学年度第一学期期中考试 一 年 级 数 学 试 卷 班级学号姓名___________分数__________ 一、填空我能行。（每空1分，计26分） 1、 （）只（）头 （）只 2、 6 7 2 □8 9 ∧ ∧ ∨ ∧ ∧ 1 □ □ 3 5 □4 □□ 3、比5大1的数是（）；比7小2的数是（）。 4、在6和9中间的数是（）和（）。 5、与8相邻的数是（）和（）。 6、数一数 （ ）个正方体 （ ）个长方体 7、 763805 ①一共有（ ）个数字，这些数字中（ ）最大，（ ）最小 ②把3右边的数圈起来。 ③从左数，8是第（ ）个；8的右边有（ ）个数。 8、比较大小； 在○里填“ ＞、＜或 = ” ① 4○5 ② 9○0 ③ 8○7 二、我能按要求完成。（26分） 1、在少的后面方框里画“√”。（2分） 2、 小狗 是（ ） ，乌龟的后面是（ ） 。（4分） 3、接着摆什么？圈出正确答案。（4分）
还剩几只？ 一共有7只， 跳走2只。7只 ？只你看到了什么？你知道“？只”表示 什么意思吗？ ＝（只） 班级学号姓名___________分数__________ 4、数一数（8分） 有（ ）个。 有（ ）个。 ）个。 ）个。 2、□里可以填几。（ 8 分） □＞3□＜5 4＞□ 2＜□ 三、我能按要求计算。（28分） 1、直接写得数。（16分） 4+2= 2+3= 5+0= 2+6= 6-6= 7-4= 4+4= 9-7= 5+3= 1+5= 7-4= 9-8= 4+1= 9-3= 2+2= 3+5= 2、在□里填入合适的数。（12分） 1+□=8 □+4=9 3-□=0 □-3=2 2+□=7 8-□=3 四、看图写算式。（每个算式4分。计20分） 1、 2、 3、 4、 5、 ？朵 = ？只 =
第一学期期中综合练习 一、直接写出得数． 240＋360= 410－230= 650－70= 480＋160= 500－160= 780＋90= 32万＋13万= 80万－37万= 60万－8万= 二、计算并验算下面各题． 1．4768＋12543= 2．60346－18759= 三、求未知数x． 1．x＋1389=51000 2．6084＋x=14307
3．x－1436=18247 4．67320－x=59473 四、填空． 1．十万零三百四十二写作( )． 2．三千零九万零五十写作( )． 3．70439154省略万后面的尾数，它的近似数是( )． 4．940000以万作单位写作( )． 五、列式并计算下面各题． 1．一个数是820万，另一个数比它多150万，这个数是多少？ 2．4305比10732少多少？ 六、应用题． 1．李老师给学校买图书用了245元，买体育用品用了184元，他带了500元，还剩多少元？ 2．电影院的一楼有座位32排，每排有34个座位，二楼有480个座位．这个电影院一共有多少个座位？
3．食堂运了一批煤，烧了48吨，还剩36吨．这批煤有多少吨？(列出含有未知数x的等式，再解答出来．) 一、直接写出得数． 240＋360= 410－230= 650－70= 480＋160= 500－160= 780＋90= 32万＋13万= 80万－37万= 60万－8万= 二、计算并验算下面各题． 1．4768＋12543= 2．60346－18759= 三、求未知数x．
1．x＋1389=51000 2．6084＋x=14307 3．x－1436=18247 4．67320－x=59473 四、填空． 1．十万零三百四十二写作( )． 2．三千零九万零五十写作( )． 3．70439154省略万后面的尾数，它的近似数是( )． 4．940000以万作单位写作( )． 五、列式并计算下面各题． 1．一个数是820万，另一个数比它多150万，这个数是多少？ 2．4305比10732少多少？ 六、应用题． 1．李老师给学校买图书用了245元，买体育用品用了184元，他带了500元，还剩多少元？
2016学年第一学期六年级期中考试英语试题 Part 2 Vocabulary and grammar (第二部分词汇和语法) Ⅴ. Find the word with a different sound in each group(从每组单词中找出一个划线部分与其它单词发音不同的单词) 26.A. name B. van C. rat D. badminton 27.A. supper B. truck C. but D. use 28.A. cost B. clock C. open D. promise 29.A. other B. with C. those D. thin 30.A. these B. he C. desk D. we 31.A. warm B. park C. car D. market Ⅴ. Choose the best answer(选择最恰当的答案) 32.My grandmother’s birthday is ______ important day for me. A.a B. an C. the D. / 33.On open day,the parents will look at the class projects ______ two thirsty. A.at B. on C. in D. about 34.This is a photo of my father and ____ . We’re swimming in the sea. A.I B. my C. me D. mine 35.Are there _____ chicken wings in the fridge? A. some B. the C. a D. any 36.____ go back into a room on fire(着火的). It’s dangerous.
北京市北京三中-九年级数学上学期期中试题 考生须知 1．本试卷共8页，共五道大题，29道小题，满分120分。考试时间120分钟。 2．试题答案一律书写在答题纸上，在试卷上作答无效。 3．在答题纸上，除作图使用铅笔外，其他试题用黑色字迹签字笔作答。 4．不得使用涂改液（带），没有在指定位置答题或在答题框外答题一律不给分. 选择题（本题共30分，每小题3分） 下面各题均有四个选项，其中只有一个．．是符合题意的． １．如图，在△ABC 中，若DE ∥BC ，AD ∶BD =1∶2，若△ADE 的面积等于2，则△ABC 的面积等于（ ）. A.6 B.8 C.12 D.18 2．在平面直角坐标系中，已知点和点，则 等于（ ）. A ． B ． C ． D ． 3．抛物线的顶点坐标是（ ）. A ．(-2，5) B ．(2，5) C ．(-2，-5) D ．(2，-5) 4．在Rt △ABC 中，∠C ＝90°，若BC ＝1，AC ＝2，则sin A 的值为（ ）. A ． B ． C ． D ．2 5．下列三角函数值错误的是（ ）. A ．sin B ． C ． D ． 6． 如图，身高为1.6米的某同学想测量学校旗杆的高度，当他站在C 处时， 他头顶端的影子正好与旗杆顶端的影子重合，并测得AC ＝2.0米， BC ＝8.0米，则旗杆的高度是（ ）. A ．6.4米 B ．7.0米 C ．8.0米 D ．9.0米 7．将抛物线 绕顶点旋转180°，则旋转后的抛物线的解析式为（ ）. A ． B ． C ． D ． 8． 如图，将△ABC 的三边分别扩大一倍得到△A 1B 1C 1 （顶点均在格点上），若它们是以P 点为位似中心的 位似图形，则P 点的坐标是（ ）. A ．(-3，-3) B ． (-3，-4) C ．(-4，-3) D ． (-4，4) (3,0)A )4,0(-B OAB ∠cos 43534 3 -54()2 25y x =--+525 121 302 ?= 3sin 60?=tan 451?=cos 603?=2 24=+y x 2 24=--y x 224=-+y x 2 24=-y x 2 2=-y x A C B 第1题图 第6题图 第8题图
五年级第一学期 数学期中复习（一） 考试时间：80分钟 总分：100分 班级________姓名________学号________成绩________ 第一部分：计算（51%） 一、直接写得数：9% =÷4.5054.0 =?25.04.0 =?-5.04.24.2 =+5.725.1 =÷4.02.2 =+-5.25.25.7 =?01.06.5 =-8.22.8 =?+÷1.01.01.01.0 二、竖式计算：10%（打*的要验算） =?08.3275.0 ≈÷1.13.15 *=÷18.0369.0 （商精确到0.01） 三、递等式计算，写出必要的计算过程，能简便的要用简便方法计算。24% （1）8.316.318.36.5÷+? （2）6.51.86.59.26.5?+-? （3）)01.01.001.0(94.5?-÷ （4）25.0)8.04(5.12?-? （5）4.201.119.286.78+-- （6）25.0]5.0)6.06(5.0[÷-+?
四、列式计算：8% （1）甲数是4.8，比乙数的一半多0.2，乙数是多少？ （2）0.4与0.4的积除它们的和，结果是多少？ 第二部分：概念 （20%） 一、填空：12% （1）=28.4m （ ）2dm =cm m 42（ ）m . （2）在算式60-（ +10.6）=20.6中， =（ ）. （3<”、“>”或“=”. .02.7÷2.7 108.76÷1.08.76? （4）3.01701701701....是一个（ ）小数，用简便形式写这个小数是（ ）. （5）一个两位小数用“四舍五入”法精确到十分位是4.0，这个两位小数最大是（ ），最小是（ ）. （6）一个数的小数点向左移动一位后，所得的数比原来少8.1，原数是（ ）. 二、选择：8% （1）大于2.55，小于2.65的两位数有（ ）个. A. 8 B. 9 C. 10 D. 无数 （2）2.304.、2.3.04.、2.304、2.30.4. 从大到小排列在第三位的数是（ ）. A. 2.304. B. 2.3.04. C. 2.304 D. 2.30.4. （3）下列各式中，与62.04.105÷的商不相等的式子是（ ）. A. 621504÷ B. 2.61504÷ C. 1.3527÷ D. 6210540÷ （4）d c b a 、、、都是大于0的数，且，55.05.05.05.0=÷=?=-=+d c b a ，在这四个数中，最小的数是（ ），最大的数是（ ）. A. a B. b C. c D. d