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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|}=
精选练习题目
I am writing to you _________ I\’m afraid to talk about it face to face.( )
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—When did you go to bed last night? —Not until my homework .( )
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--Which is the sentence pattern of "It is raining heavily"? --________.( )
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根据名意和提示,写出单词的适当形式 The c_____________ thought the potatoes were not thin enough.
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I believe.Tony will come on time.(合并为宾语从句) I believe ______ ______ ______ ______ on time.
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I arrived at the concert hall,I realized that I had forgotten my ticket.( )
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The child as well as his parents__________ the performance at the moment.( )
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-When shall I hand in my project? -As soon as it __________tomorrow.( )
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- Every time I see the crippled woman, I will _____________ my hands to steady (稳住) her. -What a kind boy you are!( )
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- Jack, you must ____________ your attention ____________ the class.Don't look here and there. -Sorry, Mr Wang. I will do as you say.( )
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中学阶段你一定读过一些故事书吧,请根据以下问题提示写一篇短文,谈谈你最喜欢的 故事.提示: 1.What is the name of the story and who is the writer? 2.What is the main idea of the story and who are the main characters? 3.Why do you like it? 要求: 1.表达清楚,语句通顺,意思连贯,书写规范;
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昨天雨下得如此大,以致许多学生上学迟到了。 It rained__________________many students were late for school yesterday.
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- Stay away from that river. It's very dangerous to play near it. - OK. Thank you for reminding me.( )
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-Do we need to buy some milk? -No, there is plenty of milk in file fridge.( )
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假设你是九年级(一)班的张蕊,在学习本单元的时候,老师让你们对不同的电视节目发表自己的看法。请你根据下面表格中的提示信息,写一篇80词左右的发言稿,说明自己的情况,可适当发挥。 节目 态度 原因 soap operas can't stand boring and meaningless game shows love exciting and enjoyable news don't mind educational
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Henry was a kind, good boy. However, his father was dead, and his mother was very poor. He wanted (1) (help) his mother because she couldn't always make enough money to buy food (2) her family. One day, a man gave him a
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假如你的好朋友Lynn的父母对她期望很高, 希望她每科都拿到A, 她努力了但怎么也达不到。她写信给你, 希望能得到你的帮助。请根据以下要点提示写一篇英语短文。 要点提示: 1. 告诉父母你已尽力, 并跟他们讨论, 请教方法;2. 向老师询问学习方法; 3. 按照父母以及老师教的方法学习, 不断努力。要求: 1. 信中不得出现真实校名和姓名; 2. 条理清楚, 意思连贯, 语句通顺, 标点正确; 3. 80词左右。
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阅读理解 Some people think only school children do not agree with their parents. However, it is not true. Communication is a problem for parents and children of all ages. If it's hard for you to communicate with your parents
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写作我国拥有大量的自行车。但随着经济(economy)的发展,越来越多的家庭购买了汽车。请写一篇英语短文,阐述自行车和汽车各自的优缺点,并谈谈自己的看法。词数:100左右。参考词汇:outstanding,advantages,convenient,traffic,healthy,exhaust gas (废气),pollute
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每个人都是独一无二的,都有与众不同之处,人们喜欢你一定会有很多原因。请以“What makes me a good friend?”为题写一篇英语短文。要求:1. 语言表达准确,短文连贯通顺;2. 文中不得出现真实姓名和学校名称;3. 80词左右。What Makes Me a Good Friend?
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