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#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·单词拼写Unit 1 Could you please clean your room?

根据首字母及汉语提示,完成下列单词的拼写,使句意明确,语言通顺。 【1】Children shouldn’t d_________ on their parents too much. 【2】John often helps his mother do c__________l ike folding the clothes. 【3】Alice h________ to do the dishes, but she likes swee

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八年级·英语·阅读理解Unit 1 Could you please clean your room?

An exhausted (筋疲力尽的) looking woman came into the doctor’s office. She said, “Doctor, there are a lot of dogs all over my neighborhood. They bark (犬吠) all day and all night, and I can’t get a good sleep.” “I have good new

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八年级·英语·阅读理解Unit 1 Could you please clean your room?

Do teenagers in small villages do chores at home? How about the teenagers in big cities? Here is a survey. We asked 4,000 teenagers in China several questions. Half of them come from big cities like Beijing, Shanghai and

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八年级·英语·补全对话Unit 1 Could you please clean your room?

根据对话内容,从方框内的选项中选出能填入空白处的最佳选项,其中有两个为多余选项。 (Rose and Ann are talking about chores.) Rose: Ann, could you please get me some water? Ann: Sure. 【 1 】 Rose: I’m sweeping the floor. \ Ann: Do you like it? Rose: 【 2 】 It’s too

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八年级·英语·填空题Unit 1 Could you please clean your room?

Lisa is serious about the chores in her house. She gives her children things that they _______ do according to their ages. She started by asking John, the _____ of her two sons, to help with the dishes. It is now an easy

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八年级·英语·选择题Unit 1 Could you please clean your room?

There are still a few hamburgers. Would you like to have ______one, Julia?

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八年级·英语·书面表达Unit 1 Could you please clean your room?

书面表达 目前中学生学习任务重,压力大,而丰富多彩的业余生活,有利于开拓视野,调节身心,提高学习效率。请以“My Spare Time”为题,写一篇作文谈谈你的业余生活,如看书、看电视、玩电脑、做运动、做家务等。(80个词左右) My Spare Time ___________________________________________________________________________________________

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八年级·英语·填空题Unit 1 Could you please clean your room?

Lisa is serious about the chores in her house. She gives her children things that they _______ do according to( 根据 ) their ages. She started by asking John, the _______ of her two sons, to help with the dishes. It is now

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八年级·英语·填空题Unit 2 Numbers

Kids’ memorizing multiplication tables (乘法表) may help them to be better mathematicians, according to the scientists. After spending a certain amount of time practicing maths, kids can put away the calculator. They don’t

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八年级·英语·填空题Unit 2 Numbers

Today, the Internet is used in nearly every field of life. Does the Internet play an important part in education? Let’s take a look at it in detail. School Projects The Internet can be most _______ for completing project

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八年级·英语·阅读理解Unit 2 Numbers

In Germany, there are different kinds of high schools. Some students will become workers and others will go to college after they leave high school. All schools are great places for making friends and learning German. 2

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八年级·英语·句型转换Unit 2 Numbers

Complete the following sentences as required (根据所给要求,完成下列句子): 【 1 】 He’s seldom late for school. (改为反意疑问句) He’s seldom late for school, _______ _______ ? 【 2 】 It took her three hours to finish the work yesterday afterno

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八年级·英语·填空题Unit 2 Numbers

Complete the sentences with the given words in their proper forms(用括号中所给单词的适当形式完成下列句子): 【1】Peter wanted to be a volunteer at the library on his _______ birthday. (twelve) 【2】English is one of the official _______ in Indi

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八年级·英语·填空题Unit 2 Numbers

A. surprise B. suggests C. wonderful D. dreamed of E. museums F. solves G. certainly Most people think that the best store is one with very expensive goods. It’s 【 1 】 great if you have a pocket full of money and can buy

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八年级·英语·选择题Unit 2 Numbers

— Hello, may I speak to Lily? — _______

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八年级·英语·选择题Unit 2 Numbers

Mrs Wang couldn’t fall asleep _______ her son arrived home.

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八年级·英语·填空题Unit 1 Encyclopaedias

People use the V-sign, standing for “victory” around the world. Where did the i _______ come from? Well, it started during World War Ⅱ . On January 4, 1941, a Belgian whose first name was Victor made a radio broadcast to

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八年级·英语·填空题Unit 1 Encyclopaedias

People often call eyes the window to the soul. But do you know that your eyes will always tell the _______ even if you try to hide your feelings? Sound like a plot in a film? Indeed, body language experts (专家) have found

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八年级·英语·阅读理解Unit 1 Encyclopaedias

Problem Cause Advice Feel stressed(紧张) Too much homework. Don’t have enough time for their hobbies. Make a plan for study and hobbies. Find time to relax. Get short-sighted(近视) Too much homework. Bad study habits. Do hom

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八年级·英语·句型转换Unit 1 Encyclopaedias

Complete the following sentences as required(根据所给要求,完成下列句子): 【1】My friend knew something about the car accident. (改为否定句) My friend ________ know ________ about the car accident. 【2】My mother is as old as my former teache

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