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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·选择题介词短语

The duck\’s large feet _____ them quickly through the water．（）

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九年级·英语·选择题单词、词组;动名词;单词填空

he is an elderly man,he is still very active in many volunteer activities.（）

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九年级·英语·选择题问答题;人物故事类阅读

They had no but short their journey because of the sudden heavy rain.（）

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九年级·英语·选择题宾语从句

wonderful the advice you\’ve given to the class teacher is!（）

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九年级·英语·选择题形容词的比较级和最高级

The sooner you start,the _____ you\’ll finish doing your work．（）

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九年级·英语·选择题被动语态;一般过去时

The funny story in a beautiful mountain.（）

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九年级·英语·选择题说明文;判断推理;文中细节

--Have you heard about the news that several Chinese drones（无人机）gave a wonderful performance in Saudi Arabia（沙特）? --Of course. of drones is up to 6000.（）

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九年级·英语·填空题提纲作文

假设你叫 Tom,你们学校要推荐一名"最美学生",你想推荐Sam.请根据表格内容,写一封90词左右的推荐信.信的开头和结尾已给出,不计入总词数. 姓名 Sam 性格、品质自信不害怕在许多人前面演讲；勤奋对学习标准高；有条理 …… 乐于助人 …… 在校: 在家: 尊敬师长,团结同学； ………… 喜爱的服装和颜色蓝色T恤和黄色长裤,因为蓝色……,黄色……（请适当发挥）其它有爱心,经常参加慈善活动,把绝大部分业余时间用于帮助

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九年级·英语·填空题健康环保类阅读;词根词缀;说明文;文中细节

Many things around us may affect our feelings and moods.For example,before you give （1）______ speech,you may feel nervous.Living in the neighborhood filled with（2）______ （noisy） makes you upset and you may have （3）______

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九年级·英语·填空题连词成句

选用方框内的单词或词组填空,其中有一个单词或词组是多余的. preferred,speeches,shape,daily,standard,impatient （1）Do believe in yourself,because it is you who ______ your life and your future. （2）When Helen\’s father was young,he ______swimming in the

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九年级·英语·填空题人物故事类阅读

When I was growing up,I had an old neighbour,Dr.Gibbs.He didn\’t look like any doctor I\’d ever known.He never invited us to play in his yard,but he was a very kind person. When Dr.Gibbs wasn\’t saving lives,he was plant

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九年级·英语·填空题记叙文;人物故事类阅读;判断推理;文中细节

Next day,Tom and Huck had an important talk about the money they had seen.Huck said someone else must have taken it from Indian Joe\’s room in the hotel. "Huck,I bet the money is in the cave!Will you go there with me and

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九年级·英语·填空题人生感悟类阅读;词根词缀;其他类阅读;判断推理;文中细节

"I don\’t want to go to school,Mum.I feel a bit sick.""If you have a school problem,just tell me.When I was a little girl,sometimes some boys called me terrible names."Ollie looked up and asked,"Why did they do that?" "S

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九年级·英语·填空题新闻报道类阅读

（1）The picture above may be from ______. A．a story B．a diary C．a letter D．a newspaper （2）______ of Chinese people don\’t have sleeping problems. A．19% B．22% C．59% D．81% （3）Who goes to bed latest? ______ A．People born in

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九年级·英语·填空题人物故事类阅读

Ann a was a 9-year-old girl from a small village.She finished primary school till the 4th grade at her village.For the 5th grade,a famous school in the city （1）______ her.Anna got very happy.Today was the （2）______ day o

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九年级·英语·选择题科普知识类阅读

-I think Millie is careful enough to be an accountant in the future．（） -．____She makes mistakes at times and she doesn\’t like working with numbers．

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九年级·英语·选择题宾语从句

-What did your father say to you just now? -He asked me ．（）

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九年级·英语·选择题情态动词;虚拟语气

-Mum, why do I have to wash hands so many times a day? -For your health, you______be too careful．（）

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九年级·英语·选择题冠词

Wearing white can help people _______when they feel stressed．（）