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·书面表达Unit 5 The human brain

Writing （作文） Write a passage with at least 60 words about the topic "The Way （ s ） I Learn English". （以“我学习英语的方法”为话题，写一篇不少于 60 个词的短文，标点符号不占格。）（注意：短文中不得出现考生的姓名、校名及其他相关信息，否则不予评分。） Questions for reference. （以下问题仅供参考。） * How

查看题目详情 →

九年级·英语·任务型阅读Unit 5 The human brain

Some people from the country think that city life is the most interesting. They come to visit friends or go to a hotel in the city. They may stay for a few days or as long as a week. Some visitors think that foreign rest

查看题目详情 →

八年级·英语·填空题Unit 1 Encyclopaedias

People use the V-sign, standing for “victory” around the world. Where did the i _______ come from? Well, it started during World War Ⅱ . On January 4, 1941, a Belgian whose first name was Victor made a radio broadcast to

查看题目详情 →

八年级·英语·填空题Unit 1 Encyclopaedias

People often call eyes the window to the soul. But do you know that your eyes will always tell the _______ even if you try to hide your feelings? Sound like a plot in a film? Indeed, body language experts （专家） have found

查看题目详情 →

八年级·英语·阅读理解Unit 1 Encyclopaedias

Problem Cause Advice Feel stressed（紧张） Too much homework. Don’t have enough time for their hobbies. Make a plan for study and hobbies. Find time to relax. Get short-sighted（近视） Too much homework. Bad study habits. Do hom

查看题目详情 →

八年级·英语·句型转换Unit 1 Encyclopaedias

Complete the following sentences as required（根据所给要求，完成下列句子）：【1】My friend knew something about the car accident. （改为否定句） My friend ________ know ________ about the car accident. 【2】My mother is as old as my former teache

查看题目详情 →

八年级·英语·填空题Unit 1 Encyclopaedias

Complete the sentences 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】Aristotle（亚里士多德）was one of the most famous ________ in the world. （think）【2】Some students might spend most of their holiday time

查看题目详情 →

八年级·英语·填空题Unit 1 Encyclopaedias

A. good B. careful C. orders D. recognizes E. owner F. certain G. easily Do dogs understand us? Be 【 1 】 about what you say around your dog. It might understand more than you think. A border collie （牧羊狗） named Rico 【 2 】

查看题目详情 →

八年级·英语·选择题Unit 1 Encyclopaedias

--- Would you like me to bring you a cup of coffee? --- ________.

查看题目详情 →

八年级·英语·选择题Unit 1 Encyclopaedias

It has been about twelve years since I ________ my job as an engineer.

查看题目详情 →

七年级·英语·填空题Unit 2 What’s this in English?

听短文，完成表格中所缺的单词。每空一词。短文读两遍。 About Liam’s Room His room is 【 1 】 . His jacket is on the 【 2 】 . What’s on the wall? His 【 3 】 is on the wall. What’s in his schoolbag? A pen, a ruler and some 【 4 】 . The color( 颜色 ) of his

查看题目详情 →

九年级·英语·书面表达Unit 4 Computers

Writing （作文） Write at least 60 words according to the given topic "I Hope...". （以“我希望……”为题写作，要求语句正确通顺，内容连贯，词数不少于 60 个。） Suggested point: What are you planning to do and see? I Hope... ____________________________________

查看题目详情 →

九年级·英语·任务型阅读Unit 4 Computers

When all the housewives went to the new supermarket, they had one great hope in mind: to be the lucky customer. Then they did not have to pay for their shopping, for this was what the notice just inside the entrance prom

查看题目详情 →

八年级·英语·填空题Unit 4 Inventions

We should believe in______（scientific）in the modern society．

查看题目详情 →

八年级·英语·填空题Unit 4 Inventions

With light bulbs， people can do as______（much）things in the evening as they can in the daytime．

查看题目详情 →

八年级·英语·填空题Unit 4 Inventions

This allows people______（keep）in touch with each other anytime， anywhere．

查看题目详情 →

八年级·英语·填空题Unit 4 Inventions

It will take China for a long time to become a______（develop）country．