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

七年级·英语·阅读理解Unit 3 the earth

In most parts of the world, many students help their schools make less pollution. They join "environment clubs". In an environment club, people work together to make our environment clean. ●No-garbage lunches. How much d

查看题目详情 →

七年级·英语·填空题Unit 3 the earth

Qian Lei is a student of Class Two, Grade Seven. He is twelve years old. He often wastes (浪费) _____ at home and at school. The teacher worries about him and asks his father ______ with him. One evening, _______ supper hi

查看题目详情 →

七年级·英语·单词拼写Unit 3 the earth

填空题【1】Jane is new here, so she has f________ friends. 【2】This is my o________ room. 【3】We should set up more nature reserves to p________ wild animals. 【4】There are many people in my family. I think we need a l________

查看题目详情 →

七年级·英语·阅读理解Unit 6 travelling around Asia

Venice is well-known for its places of interest, natural beauty and culture. It is in the north-east of Italy. The city is famous all over the world for its canals (运河). It has about118 islands. About 177 canals and over

查看题目详情 →

七年级·英语·填空题Unit 6 travelling around Asia

We go to many places every day. ____ do you usually travel? Do you usually walk or ride bikes? In a modern city, there are many _____ for you to choose when you go travelling. If you are in a hurry, you can take a ____.

查看题目详情 →

七年级·英语·单词拼写Unit 6 travelling around Asia

填空题【1】You can't go ________ (cross) the street when the traffic lights turn red. 【2】It's my idea to hold the party o________ the house, not in the house. 【3】D________ are traditional Chinese food. 【4】There are many famo

查看题目详情 →

七年级·英语·阅读理解Unit 5 visiting the moon

阅读下面短文，从下面每小题的A、B、C、D四个选项中选出最佳选项。 I'm a Chinese boy. I love travelling a lot. And I've been to many great places. But I've never travelled into space. My dream is that I can fly to the Moon one day. I know Chinese people

查看题目详情 →

七年级·英语·填空题Unit 5 visiting the moon

Do you think of the future? Three friends and I make a poster (海报) to show our thoughts (想法) in a class meeting. The main (主要的) ________________of the poster is black. We hope it can make people________. We draw a green

查看题目详情 →

七年级·英语·完成句子Unit 5 visiting the moon

填空题【1】Two Chinese got to the Moon by s________. 【2】There are many kinds of beautiful flowers in the g________. 【3】A trip to the Moon will c________ a lot of money. 【4】I am going to send a p________ to my e-friend on his

查看题目详情 →

七年级·英语·阅读理解Unit 8 collecting things

Many parents today worry about their children's diets. Then what is a healthy diet for children? Miss Jones from Happy Children Hospital gives the following advice: ◆Children shouldn't eat food with too much salt, becaus

查看题目详情 →

七年级·英语·阅读理解Unit 8 collecting things

A young man and an old man were waiting for a train at a station. They sat next to each other. "What's in your bag?” as ked the young man. “Gold,” answered the old man,“nothing but gold." The young man could hardly belie

查看题目详情 →

七年级·英语·填空题Unit 8 collecting things

Last month we bought our two- year-old daughter a little ________________ There were few children of her age where we ________________ and we thought a dog would make her less ________________ . We were right. They playe

查看题目详情 →

七年级·英语·阅读理解Unit 7 school clubs

Here are some after-school activities. You can choose any one or ones you like to make your school life more colourful. Join us, please. Name of the club Time Activity Reading Club Monday (3: 00 p. m—5: 00 p. m. Read new

查看题目详情 →

七年级·英语·填空题Unit 7 school clubs

In our school, there is an English club, a Music Club, a Football Club, a Tennis Club and many other clubs. The ______ Club is the most popular (最受欢迎的) one. And I am in the club because tennis is my ______ sport. There a

查看题目详情 →

七年级·英语·填空题Unit 7 school clubs

阅读下面短文，根据文章大意用所给单词的适当形式填空（未提供单词的，限填一词），使文章意思完整、正确。 There are many 【 1 】 (interest) clubs in our school. They 【 2 】 (be) the Music Club, the Movie Club, the Basketball Club, the Chess Club, the Art Club and so on. We like

查看题目详情 →

七年级·英语·选择题Unit 7 school clubs

—_____ did your brother _____ a letter to? —His friend in France.

查看题目详情 →

七年级·英语·选择题Unit 8 Fashion

How _______they are at the party! They all enjoy ______.

查看题目详情 →

七年级·英语·选择题Unit 8 Fashion

Let Simon and_______ friends.

查看题目详情 →

七年级·英语·选择题Unit 8 Fashion

— Why don’t you like this brown shirt, Jack? — It isn’t the right _______. This brown shirt is too big for me.