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#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

At a day care center in Texas,children were playing outside.One of the children was Jessica,18months old.Jessica’s mother,who worked at the day care center,was watching the children.Suddenly Jessica fell and disappeared.

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九年级·英语·填空题阅读排序

Libraries give kids a quiet and safe place to read and learn.For over 100years,libraries have played an important role in Americans'education.But how are these book-filled buildings changing with the times?You may be sur

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九年级·英语·填空题阅读排序

Once upon a time,there lived a wealthy and kind king.However,the people were worried about him because he was very fat.He didn't do anything other than eat and sleep. One day,the king finally realized that he couldn't ev

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九年级·英语·填空题阅读排序

For thousands of years,people have lived with dogs.Ancient paintings on the walls of caves show people living with dogs.Almost a third of the homes in the United States and England have dogs,and these dogs come in a wide

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九年级·英语·填空题定语从句

Jack is too careless to get a good result in the test. (改为同义句) Jack isn\’t ____________ to get a good result in the test.

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九年级·英语·填空题阅读排序

No matter where the dads and their children go,that location immediately becomes a tourist destination.This has become a pattern for Hunan TV's reality show Where Are We Going,Dad?And last week the show was heading overs

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九年级·英语·填空题阅读排序

When I was a little girl,I would like to sit on Grandma's legs,listening to her stories.It was like going through a different journey that was full of hardships and difficulties. Grandma was born in a small village of Ji

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九年级·英语·填空题阅读排序

You might think that Olympic athletes are the healthiest people in the world.It's true that many are.However,it's also true that many Olympic athletes had to overcome illnesses early in their lives. One excellent example

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九年级·英语·选择题定语从句

I hate people ______ talk much but do little.( )

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九年级·英语·选择题宾语从句

Could you please tell me __ ____?( )

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九年级·英语·填空题祈使句

I don\’t want to make wrong______ (决定)and regret them later.

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九年级·英语·填空题祈使句

你迫不及待地想参观福建省博物院,可以这样表达: ______ visit Fujian Museum.

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九年级·英语·填空题社会文化类阅读

but,achievement,I,before,easy,after,something,wonder,important,of,pronunciation,about, When I was young,I loved to read stories of successful people,from ancient times to modern days.I was encouraged by their(1)______lif

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九年级·英语·选择题一般现在时的被动语态

—Look!The rainbow in the sky looks so beautiful,what's it made up? —It ________ when sunlight passes through small drops of water in the sky.( )

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九年级·英语·选择题一般现在时的被动语态

We'll fly a kite in the park as soon as your homework _______.( )

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九年级·英语·选择题一般现在时的被动语态

Now teenagers ______ to work as volunteers in their communities.

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九年级·英语·选择题一般现在时的被动语态

If I __________five minutes,I'll get everything ready.( )

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九年级·英语·选择题一般现在时的被动语态

--- I don't know which novel I should buy. --- Look!The top five novels ______ here.You can choose the one you like best.( )

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九年级·英语·选择题一般现在时的被动语态

— The air in Suzhou is getting fresher. — Exactly.And a lot of trees and flowers in our city in spring every year.( )

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九年级·英语·填空题阅读表达

If you think you\’re too shy and want to be a little bit braver,try the following.You can make it. Tell people you\’re shy.There\’s no need to hide it.When they get to know you are a shy kid,they\’ll understand you bette

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