题霸题霸学习平台

初中免费试题库,先看题再决定怎么练

游客可浏览题目与选项;登录后可免费组卷并下载学生卷。答案解析、练习判分和错题本由 VIP 解锁。

高频错题

近期常错题排行

根据匿名练习记录整理

#1 · 常错题

#2 · 常错题

将循环小数化为分数:整数、有限小数、循环小数都可以化成分数,整数和有限小数化成分数容易,循环小数如何化成分数呢?请看下面的例子. 将循环小数$0.288\ldots $化成分数:将$0.288\ldots $分别乘$10$和$100$,得$2.88\ldots $和$28.88\ldots $,两个得数相减得$26(两个得数小数部分相同)$,而相减所得的$26$应该是$0.288\ldots $的$\left(100-10\right)

#3 · 常错题

今年市委市政府积极推进创建“全国文明城市”工作,市创城办公室为了调查初中学生对“社会主义核心价值观”内容的了解程度\((\)程度分为:“\(A-\)十分熟悉”,“\(B-\)了解较多”,“\(C-\)了解较少”,“\(D-\)不知道”\()\),对我市一所中学的学生进行了随机抽样调查,根据调查结果绘制了两幅不完整的统计图如图,根据信息解答下列问题: \((1)\)本次抽样调查了多少名学生; \((2)\)补全条形统计图和扇形统计图; \

#4 · 常错题

#5 · 常错题

一批水果的标准质量是$30$千克,超出标准质量记为正,低于标准质量记为负,现记录如下:$+8$,$-9$,$-5$,$+7$,$-8$,$-6$,$+7$,$+10$. $(1)$这批水果总共有多少千克? $(2)$第一天按每千克价格$5$元卖出了这批水果的一半,第二天为了吸引顾客把第一天卖水果的价格降价$20\%$后作为新的价格,卖完了剩下的水果,请计算一下这批水果一共卖了多少钱?

#6 · 常错题

分类讨论思想是数学的重要思想,在学习有理数的过程中,也深有感受$!$ $(1)$当$ab \lt 0$时,若$b \gt 0$,$|a| \lt |b|$,则$a+b \_\_\_\_\_\_0$; $(2)$当$abc \lt 0$时,若$ab \gt 0$,则$c \_\_\_\_\_\_0$; $(3)$已知$a$,$b$,$c$是非零有理数,则$\frac{a}{|a|}+\frac{b}{|b|}+\frac{c}{|c|}=

精选练习题目

全部题目

清除筛选
七年级·英语·填空题阅读填空

Milan(米兰) is an old city with a long history.It was set up about 2,400 years ago.Milan is in the north of Italy.It is the second largest city in Italy.Milan is often covered in a thick blanket of fog(厚厚的一层雾).There are mo

查看题目详情 →

九年级·英语·填空题阅读填空

Many people think dreams are full of messages that may not be clear to us common people.But if we think about what is going on in our lives,we can usually come up with an answer.Let\’s look at some of the most common dre

查看题目详情 →

八年级·英语·选择题阅读填空

Wanda Cinema is the most popular movie theater in Jianyang because it has the biggest screen and we can sit _________.( )

查看题目详情 →

七年级·英语·填空题阅读填空

rich,be,they,have,write William Shakespeare (1564-1616)was an English writer.He(1)______ lots of famous plays,such as Hamlet and Romeo and Juliet.We can still see(2)______ in English and in many other languages today.Whe

查看题目详情 →

九年级·英语·填空题阅读填空

The Sahara Desert in Northern Africa is the largest hot desert in the world.It is about 1,800km from the north to the south and about 4,800 km from the east to the west.Temperatures can reach 58℃ in the daytime and can f

查看题目详情 →

九年级·英语·单词拼写名词作定语

根据括号内所给的中文提示,正确拼写单词,并将答案填写在答题卡对应的横线上。 【 1 】 It's a _________ ( 遗憾 ) that you can' t attend my birthday party. 【 2 】 The factory plans to _________ ( 生产 )2000 cars a year. 【 3 】 If you go to a foreign country , you must h

查看题目详情 →

九年级·英语·填空题名词作定语

根据句意,用括号中所给单词的正确形式填空,并将答案填写在答题卡对应的横线上。 【 1 】 Each of the students is _________ (ask) to take a dictionary to the English class. 【 2 】 It is very important to know how to ask for help _________ (polite). 【 3 】 The teacher

查看题目详情 →

九年级·英语·填空题名词作定语

根据句意,用括号中所给词的适当形式填空,并将答案写在答题卡的相应位置上。 【 1 】 It’s ____________ to talk with your mouth full. ( polite ) 【 2 】 Edison was a great ____________ . (invent) 【 3 】 The old man made a living by ________________ old thing. (sell)

查看题目详情 →

九年级·英语·单词拼写名词作定语

根据句意及所给中文提示或英文解释,写出句中所缺单词,每空限填一个单词。 【 1 】 1 don't need a double room. A __________ (单人的) room is OK. 【 2 】 My father will go to the __________ (音乐会) with me this evening. 【 3 】 There are lots of huge __________ (石头) in t

查看题目详情 →

七年级·英语·填空题词汇的惯用法

these,pair ______

查看题目详情 →

七年级·英语·填空题词汇的惯用法

根据所给句子意思,将打乱的字母组合成单词,再将单词填入相应的句子. lucry Tina is a beautiful girl with ______hair.

查看题目详情 →

九年级·英语·填空题词汇的惯用法

晚上的贵阳甲秀楼真美啊! ____________ Jiaxiulou in Guiyang looks at night!

查看题目详情 →

七年级·英语·选择题词汇的惯用法

______are going to lie on the beach ______ summer holiday.( )

查看题目详情 →

七年级·英语·填空题词汇的惯用法

______(jog) along the lake in the morning is good for us.

查看题目详情 →

七年级·英语·填空题词汇的惯用法

It\’s ______ for us to finish the task in only ten minutes because it\’s too difficult. (possible)

查看题目详情 →

八年级·英语·填空题实义动词的过去分词

她礼貌地请求给点水. She made a ______for some water ______.

查看题目详情 →

九年级·英语·填空题实义动词的过去分词

政府已经在我们的城市里建了很多卫生间. The government has built a lot of ______ in our city.

查看题目详情 →

八年级·英语·选择题实义动词的过去分词

Please don\’t be late. Come here .( )

查看题目详情 →

九年级·英语·单词拼写名词作定语

单词拼写 根据中文或首字母提示完成下列单词的拼写,使句意完整、正确。每空一词。 【 1 】 Which do you ______ ( 更喜欢 ), classical music or pop music? 【 2 】 He was the only little boy at the _______ ( 野炊 ). 【 3 】 Parents should give teenagers some ______ ( 机会 ) to m

查看题目详情 →

八年级·英语·填空题翻译填空

汤姆几乎没有朋友,因为他总是拒绝帮助别人. Tom ______ has any friends because he always refuse to help others.

查看题目详情 →

题库使用说明

从一道题开始,形成可复盘的练习记录

按真实条件找题

可以组合年级、学科、难度、题型和知识点搜索;筛选结果页不单独参与索引,避免重复页面分散权重。

题目公开,学习闭环由 VIP 解锁

题干与选项可直接浏览;答案解析、判分、错题本和针对训练需要 VIP。

再转成专项训练

发现薄弱知识点后可继续组卷或练同类题,把一次搜索转成后续练习和错题复盘。