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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·选择题非谓语动词

Mike decided_______ the museum this Sunday.( )

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八年级·英语·填空题非谓语动词

Our teacher told a joke and made all of us l ______(发笑) in yesterday\’s class.

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八年级·英语·选择题及物动词和不及物动词

When we are doing DIY,the brush is_____useful tool.( )

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八年级·英语·填空题实义动词的过去分词

My mother visited my grandpa yesterday evening.(划线提问) ____________ your grandpa yesterday evening?

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八年级·英语·填空题实义动词的过去式

wait feed win seem relax (1)Who ______ the baby pig?I think Tom did. (2)Everyone knows ______ the game needs hard work. (3)It ______ that Tom knows the exciting news. (4)Look,someone ______ for you at the gate.Let\’s hur

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八年级·英语·填空题日常生活类阅读

Ben is a popular kid in his neighborhood.He has beautiful eyes and he likes to help the old.However,Ben had a bad habit—watching too much TV. Every afternoon,after school,Ben sat on his sofa and watched TV for hours.Some

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八年级·英语·填空题任务型阅读

It\’s December.It\’s snowing and the weather is really cold in the north of China.You can see many children playing with snow.Some of them are making snowmen.Some are skating on the river,because it\’s very cold and the

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八年级·英语·填空题任务型阅读

What do junior high school students do in their free time?Last month,we interviewed 150 students in No.2 High School about their free time activities.Our questions were about exercise,helping with housework,watching TV a

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八年级·英语·填空题同位语从句

I\’m going to make an early start in order not to miss the bus.(保持句意基本不变) I\’m going to make an early start____________I won\’t miss the bus.

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八年级·英语·选择题过去将来时的被动语态

—Jack !The floor is so dirty! —Oh.Sorry,Mum.I can\’t help it because I am too busy.( )

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八年级·英语·选择题过去将来时的被动语态

So far,we ___________ 6000 English words.( )

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八年级·英语·填空题阅读填空

Antarctica(南极) is in the most southern part of the earth.There are lots of unusual facts about it.A number of animals live in terrible weather (1)______(条件) there.Killer whales and penguins are common animals Certain typ

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八年级·英语·填空题阅读填空

Once a wicked wizard(邪恶的巫师) was on a visit to a city and stole the tongues(舌头) from the sleeping people and cast a spell(施一个咒语) on them.The spell meant that these tongues could only say bad things about people.Then the w

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八年级·英语·填空题阅读填空

阅读短文,然后根据内容回答所提问题. Many inventions were created by accident.The inventors were trying to make something completely different.Here is one example. Name of the inventor:Percy LeBaron Spencer Nationality:American Invention:

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八年级·英语·填空题人物故事类阅读

Once upon a time,there was a very lazy man who would always look for an easier way to feed himself.One day while he was looking for something to eat,he saw a fruit farm.He looked around and didn\’t see anyone,so he decid

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八年级·英语·填空题人物故事类阅读

Long long ago,there was a king who liked to write stories.He thought the stories he wrote wee very good.He showed them to some people.Although people didn\’t like the stories ,they were afraid of the king.So they said hi

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八年级·英语·填空题人物故事类阅读

让我们一起去旅行,感受大自然的美丽. Let\’s take a trip ______ and feel the beauty of nature.

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八年级·英语·填空题科普知识类阅读

Unlike kids in the city,kids in some rural villages (乡村) find it hard to get books to read. Li Kaixuan,the founder (创立者) of HAVE Library,wants to help those kids.He is working to build village libraries.With his hard wor

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八年级·英语·填空题科普知识类阅读

The students in my school play handball a lot.During the first break and second break,many students get out of the (1)______ to play handball on the playground.Usually there are four students playing in each (2)______ wh

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八年级·英语·填空题判断推理

My friend Mr.Johnson is a famous doctor and has a hospital.So he has enough money to(1)______ all over the world.And he\’s been to a lot of places of interest.He likes to play with children and has a lot of little(2)____

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