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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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八年级·英语·选择题语态的辨析

---How many students are there in each group? ---Usually each group _______ six students in our class.( )

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九年级·英语·选择题语态的辨析

-Oh,the room is too dirty,Tony! -Sorry,Mom.It______yesterday.I forgot to do it.( )

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八年级·英语·选择题语态的辨析

—How many students are there in your class? — Let me see.It ____________21 boys and 20 girls.( )

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七年级·英语·选择题过去将来时的被动语态

Neither the detective nor the police___________out any proof yet.( )

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九年级·英语·选择题现在完成时的被动语态

Don't eat the cake.It in the fridge for more than a week.( )

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九年级·英语·选择题现在完成时的被动语态

The Chinese students in Ukraine(乌克兰) back home by plane from China.They are safe now.( )

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八年级·英语·选择题时态辨析

---Jim, could you please answer the question? ---Sorry, I______. Could you say it again?( )

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八年级·英语·选择题时态辨析

I still remember my happy childhood when my mother __________ me to Disneyland at weekends.( )

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七年级·英语·选择题时态辨析

I a camera two weeks ago but I haven't had a chance to use it.( )

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八年级·英语·选择题时态辨析

—Could you please help me take out the rubbish? —Sure.I will do it I finish my book report.( )

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八年级·英语·选择题不定式

I want to see pandas I go to Chengdu.( )

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八年级·英语·填空题不定式

The Sunshine Park has something for all of you in the coming days.You can have a good time going boating here.There is also a water park,a monkey island and of course delicious food such as chocolate,ice-cream and hambur

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九年级·英语·填空题文学作品类阅读

Here is the content(目录)of a book. Unit Readings Skills Words Unit 1 Music *Music & Feelings *Sad movies *Understanding main ideas *Predicting by title *Kinds of Music *Music stars Unit 2 Sports *National Sports *The anci

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七年级·英语·填空题文学作品类阅读

We usually write " ______" at the end of the letter.(you)

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七年级·英语·选择题文学作品类阅读

We must write the big letter of "w" .( )

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七年级·英语·选择题逸闻趣事类阅读

The lion ran after the rabbit.But the rabbit was too fast and the lion couldn\’t it.( )

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八年级·英语·填空题社会文化类阅读

How much do you know about Beijing Opera?Do you listen to it?Do you go to see it?Anyway,in the near future,you may be learning it at school. To promote (发扬) traditional culture,about 200 schools around China will teach B

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八年级·英语·选择题社会文化类阅读

—Nowadays,people use mobile phone too much. —I feel the same.We\’ d better not depend(依赖) too much on them.( )

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八年级·英语·填空题社会文化类阅读

Reading poems is good for us.It can make us think about some things. Poet:Li Qingzhao Poem:Last Song 《夏日绝句》 Li is one of the few famous women poets in China\’s history.She uses the story of a great hero Xiang Yu to show

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七年级·英语·句型转换语法

Our Chinese teacher rides to work every day. (改为同义句) Our Chinese teacher goes to work ______ every day.

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