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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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七年级·英语·选择题感叹句

great progress Alice has made!I\’m so proud of her.( )

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八年级·英语·选择题祈使句

Please ________ here on time.Our teacher tells us ________ late for school.( )

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七年级·英语·填空题祈使句

ask bad before buy kind know like never speak why what with A man often(1)______ oranges from an old woman.After giving the money,he always takes out one,tries a piece of it and says it tastes (2)______before giving it b

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八年级·英语·填空题祈使句

Let\’s meet ______ time next week.I\’m not available.

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七年级·英语·填空题there be 句型

There are seven ______(颜色) in the rainbow.

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八年级·英语·选择题过去将来时的被动语态

—Do you know each other? —Yes,of course.And we have been friends we first met.( )

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八年级·英语·选择题过去将来时的被动语态

My grandpa used______in the city,but now he lives in the countryside.( )

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八年级·英语·选择题过去完成时的被动语态

-I was told that Oliver Twist to the orphanage. -Right. Poor little boy.( )

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九年级·英语·选择题过去完成时的被动语态

By the time the fireman arrived there,the big fire______.( )

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八年级·英语·选择题过去完成时的被动语态

In the 1950s in the USA, most families had just one phone at home, and wireless phones _______ yet.( )

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八年级·英语·填空题一般过去时的被动语态

Miss Hawk shares some useful ______[ədˈvaɪs]on how to improve our listening.

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九年级·英语·选择题一般现在时的被动语态

(2023·福州模拟) Gu Ailing ____ in both China and many other countries because of her amazing skiing skills.

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七年级·英语·填空题一般现在时的被动语态

That sign tells us to stop here.It\’s an ______ (instruct)sign.

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八年级·英语·选择题一般现在时的被动语态

A year has four seasons and it ___ into twelve months.( )

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七年级·英语·选择题分词

—Shh!The baby is sleeping.Don\’t speak . —I\’m sorry.( )

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七年级·英语·句型转换语法

Those are ID cards. (改为单数句子) ____________ ID card.

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七年级·英语·填空题语法

A rich man lived in a small town.He was very (1)______,but his son had started play with bad people.The father tried to (2)______his son about this,but his son wouldn\’t listen. One day,an old wise man came to the town.T

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八年级·英语·填空题语法

第一节:阅读下面短文,按照句子结构的语法性和上下文连贯的要求,从各小题的四个选项中选出一个最佳答案,使短文连贯完整. One day,a boy had a fight with one of his(1)______.Then he went to his father and told him what happened."He is really bad," the boy said, "and I dislike him. Hi

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九年级·英语·填空题首字母阅读填空

In most countries,people usually eat t(1) food on special holidays.A special day in the United States is T(2) .It is always on the f(3) Thursday in November,and is a t(4) to give thanks for food in the autumn.At this tim

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九年级·英语·填空题首字母阅读填空

Spring is the season between winter and summer when the weather becomes warmer and plants start to grow again.Spring is bringing more activities with natural views,and s(46) arranged events. In Tibet,in a wild peach fore

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