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。

搜索示例：七年级数学 · 中等难度 · 选择题 · 5 道

免费在线组卷浏览免费试卷

学科

不限语文数学英语物理化学生物历史地理道法

年级

不限七年级八年级九年级

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

九年级·英语·句型转换初中英语知识点》代词》人称代词》主格的人称代词###初中英语知识点》动词》动词时态》过去完成时###初中英语知识点》句子种类》简单句》疑问句》一般疑问句###初中英语知识点》句子种类》简单句》疑问句》特殊疑问句###初中英语知识点》句子种类》简单句》疑问句》反意疑问句###牛津上海版（2008）》九年级第一学期》Module 3 Fighting crime》Unit 6 Detectives###北师大版（同北京课改版）（2013）》八年级下册

Rewrite the following sentence as required （根据所给要求，改写下列句子。每空格限填一词）【 1 】 The correct order of 1820 playing cards were remembered by Dominic O'Brian from Britain. （改为一般疑问句） ________ the correct order of 1820 playing cards

查看题目详情 →

九年级·英语·填空题初中英语知识点》句子种类》特殊句式》固定搭配###牛津上海版（2008）》九年级第一学期》Module 3 Fighting crime》Unit 6 Detectives###北师大版（同北京课改版）（2013）》八年级下册》Unit 6 Detectives###初中英语知识点》名词》名词作定语###

Complete the sentenced with the given words in their proper forms（用括号中所给单词的适当形式完成下列句子）【1】Ken is a good detective. He never jumps to ________.（conclude）【2】Floods are the No. 1 natural ________ in China during the summer

查看题目详情 →

九年级·英语·填空题牛津上海版（2008）》九年级第一学期》Module 3 Fighting crime》Unit 6 Detectives###北师大版（同北京课改版）（2013）》八年级下册》Unit 6 Detectives###

Complete the following passage with the words or phrased in the box. Each one can only be used once （将下列单词或词组填入空格。每空格限填一词，每词或词组只能填一次） A. fast B. waited C. during D. in a flash E. myself Everybody knows that it is dangero

查看题目详情 →

九年级·英语·选择题牛津上海版（2008）》九年级第一学期》Module 3 Fighting crime》Unit 6 Detectives###北师大版（同北京课改版）（2013）》八年级下册》Unit 6 Detectives###

—May I have a look at the toy, please? —________

查看题目详情 →

—Thank you so much for the nice party. I really had a great time. —________

查看题目详情 →

九年级·英语·单词拼写初中英语知识点》动词》动词语态》动词的被动语态》一般过去时的被动语态###初中英语知识点》名词》名词作定语###

A) 根据句意和汉语提示 , 在空白处填入 — 个适当的单词 ( 每空限 — 词 ) 。【 1 】 It's important to understand people from different ______ . （背景）【 2 】 People in the USA celebrate Halloween on ___________ 31st. （十月）【 3 】 It's amazing how well the En

查看题目详情 →

九年级·英语·任务型阅读-

阅读下列短文，根据短文中的信息完成文后表格。在答题卡标有题号的横线上，写出空缺处所填单词的正确形式。（每空一词） There is an English saying, “Laughter is the best medicine.” Until recently, few people took the saying seriously. Now, however, doctors have begun to look into la

查看题目详情 →

九年级·英语·任务型阅读-

How would you ask your parents to support your dream? American actress Emma Stone created a PowerPoint presentation ( 陈述 ) to get her parents’ support. Stone is a rising star in Hollywood. She played the role of Gwen Sta

查看题目详情 →

九年级·英语·阅读理解-

As Peter was flying towards the ship, he passed the crocodile ( 鳄鱼 ). It had swallowed ( 吞 ) a clock that goes “tick, tick” inside it before. However, the clock wasn’t ticking then. Peter realized it must have stopped.

查看题目详情 →

九年级·英语·阅读理解-

Sitting among the cheering fans of the Chinese Women’s Volleyball Team in Rio de Janeiro, a Polish fan caught a lot of attention. It is not because he is not Chinese, but because he has followed the team closely from the

查看题目详情 →

九年级·英语·填空题牛津译林版（2012）》九年级下册》综合复习与测试###

Sir Charles Baskerville is found ________ with a scared look on his face. The footprints of a hound are nearby. People believe the giant dog did the killing. And it seems the dog is looking for its next _______. That is

查看题目详情 →

九年级·英语·选择题-

It is nice to hear from a close friend. ________, we last met more than thirty years ago.

查看题目详情 →

九年级·英语·选择题初中英语知识点》句子种类》简单句》祈使句》祈使句的肯定形式###

Boys and girls, ________ fast to your dreams. For if dreams die, life is a broken-winged bird that can never fly.

查看题目详情 →

九年级·英语·选择题-

Our teacher told us that the sun ______ the earth light.

查看题目详情 →

九年级·英语·选择题初中英语知识点》动词》动词分类》实义动词》动词辨析###

—Look! He’s jumping so far! —Hard to ________ his legs were once broken.