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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·选择题初中英语知识点》名词》名词辨析###

In China, the color red is the ________of good luck.

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九年级·英语·选择题初中英语知识点》代词》人称代词》宾格的人称代词###

Look ! The woman over there is our teacher. She teaches _______English.

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九年级·英语·选择题-

I usually have _______egg and some bread for breakfast.

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九年级·英语·选择题初中英语知识点》听说》交际###

—Nice to meet you. —____________

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九年级·英语·完成句子初中英语知识点》动词》动词分类》短语动词###初中英语知识点》代词》it的特殊用法》非人称代词(指天气、时间、金钱等)###

完成句子 【 1 】 昨天下午放学的时候天正下着大雪 。 ( snow ) ____________________________________ when school was over yesterday afternoon. 【 2 】 无论我走到哪里 , 没有什么能把我和我的祖国分离 。 ( separate ) Wherever I go, nothing can make me ______________________

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九年级·英语·阅读理解-

What are you holding in your hand while you are taking the examination? Right. A pen. Though it is small, the pen has changed the history, improved the trade of countries, recorded events, carried news, and done far more

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九年级·英语·阅读理解-

In the state of Qin ( 秦国 ) , there was a man called Shang Yang ( 商鞅 ). He was a statesman ( 政治家 ) and worked out many reforms( 改革 ) for the state, like paying more attention to farming and giving rewards ( 报酬 ) to soldie

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九年级·英语·阅读理解-

I'm sure you all know how important recycling is. Recycling is when you take old things and turn them into new things. It sounds like magic. But it's actually very scientific. Material The first thing you have to do is t

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九年级·英语·填空题-

For Pineda, it was a long way to succeed. His story began in El Salvador; where he was born with something wrong with his mouth. He had great _______ in speaking. At age 2, his family’s house burned down. Pineda was hurt

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九年级·英语·选择题初中英语知识点》句子种类》主从复合句》宾语从句》连接代词或连接副词引导###

--1 really want to watch Operation Red Sea(红海行动). Could you tell me ________ ? -- Sure. It'll be on show at Town Cinema.

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九年级·英语·选择题初中英语知识点》动词》动词分类》短语动词###

—Is the sweater made ________ cotton? — Yes. It ________so soft and I like it very much.

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九年级·英语·选择题初中英语知识点》副词》副词的种类》方式副词###初中英语知识点》词汇》单词》C》carelessly###初中英语知识点》词汇》单词》H》heavily###初中英语知识点》词汇》单词》N》nicely###初中英语知识点》词汇》单词》R》rudely###

—He hardly had friends because he used to be mean. —But now he has changed a lot. He treats others and is popular.

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九年级·英语·选择题初中英语知识点》代词》人称代词》宾格的人称代词###初中英语知识点》动词》动词分类》短语动词###

—Shall we ________the things we don' t use ? —No.We can ________to the people in need.

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九年级·英语·选择题初中英语知识点》动词》动词分类》短语动词###

— Your sister _ your mother very much. — Many people regard them as sisters when they hang out together.

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九年级·英语·选择题初中英语知识点》名词》名词辨析###

--- More and more foreigners come to visit the Great Wall. ---That's true. It is the____of China.

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九年级·英语·选择题初中英语知识点》动词》动词分类》情态动词###

---The beautiful lady with glasses over there looks like our English teacher. ---It be her. She has gone abroad.

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九年级·英语·选择题初中英语知识点》介词》简单介词》介词用法###

—Shall I help you go the street, Grandpa? —No, thanks. I can manage it myself.

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九年级·英语·选择题初中英语知识点》句子种类》特殊句式》倒装句》部分倒装###

—Would you like to go to the city park? — I’m not sure. If Mike doesn’t, _________.

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九年级·英语·选择题初中英语知识点》名词》名词辨析###

- It's useless to regret what has been done. Don't make those mistakes again 一I won't. That's a(n) _____

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九年级·英语·选择题初中英语知识点》名词》名词辨析###

—I like the ________ named The World of English very much. — Me, too. I have read it for many years.

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