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#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|}=

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九年级·英语·填空题阅读排序

Do you know Ma Yun？He is Founder and Chairman of Alibaba（阿里巴巴）Group．Ma was born in Hangzhou．At an early age，Mawanted to learn English so he rode his bike each morning in order to go to a nearby hotel and talked with fore

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九年级·英语·填空题阅读排序

Audrey Hepburn won an Academy Award as Best Actress for her first major American movie，Roman Holiday，which was showed in 1953．But she is remembered as much for her help as for her acting． Born in Belgium in 1929，Audrey's

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九年级·英语·填空题阅读排序

Two men were going through a forest． "I am afraid，"said one，"that we may meet with wild animals""Fear nothing，friend Quickwit，"cried the other，whose name was Braggart．"If they come at us，we shall stand by one another lik

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九年级·英语·填空题文学作品类阅读

（2015•玉林）Life of Pi（少年派的奇幻河流）is to become the first 3D film to open the New York film festival．This year's New York film festival runs from September 28to October 14．The director of this movie is Ang Lee，an American Chin

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九年级·英语·选择题定语从句

The book ________ cover has a beautiful picture is Lily\’s.（）

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九年级·英语·选择题定语从句

WeChat is a nice invention can help people to talk to friends ,share photos,ideas and feelings.（）

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九年级·英语·填空题句型转换

He likes science best. （改为同义句） ____________subject is science.

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九年级·英语·填空题阅读排序

阅读以下面膜说明书，完成使用流程图的正确排序． New-skin Facial Mask with rich cream and vitamin C will give your face refreshing and moisturizing feeling． Directions： 1．Watch your hands first； 2．Clean your face thoroughly； 3．Dry your face with

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九年级·英语·填空题阅读排序

Carrots are grown all over the world．They are easy to plant and easy to harvest ．They have a good taste． When people think about carrots，they usually think they are a kind of long，thin，orange-colored vegetable．In fact，ca

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九年级·英语·填空题阅读表达

If you\’re lucky enough,you may find a bouquet（花束） of flowers when you travel around the town of Merthyr Tydfil in Wales,the UK.Who（1）______the beautiful flowers around the town?It\’s Fay Trowbridge. Fay is the （2）______

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九年级·英语·选择题阅读表达

Try to understand others,and you will be more ____________ with people you disagree with.（）

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九年级·英语·选择题定语从句

Do you know the man ________ is sitting behind Nancy?（）

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九年级·英语·选择题语态的辨析

To my great surprise，the story of the famous musician _______ differently on the Internet．（）

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九年级·英语·选择题语态的辨析

---May I play soccer with Tom now，Mum？---When all the homework ______，you may go out to play．（）