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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
—Have you read today's newspaper? —Yes. But there is nothing exciting ______.
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Ⅰ.用所给单词的适当形式填空 【1】It is important for students ______ (study) English. 【2】Mo Yan is one of ______ (famous) writers in China. 【3】Who was the first ______ (get) to school today? 【4】The national flag ______ (use) as a symbo
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Ⅲ.用所给单词把两个句子合并成一个句子 【1】Tom arrived at his school.He started his lessons.(after) ________________________________________________________ 【2】It's December.It's summer in Australia.(although) ______________________________
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Is ______ you borrowed from the library?
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When will the man ______ wrote a letter to you last month arrive?
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Did you find the notebook ______ Jim had given me for my birthday?
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This is the cage ______.
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This is the best film ______ has been shown this year.
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I'm looking at the photograph ______ you sent me with a letter.
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Ⅰ.用所给单词的适当形式填空 【1】We were all ______(surprise)at the ______(surprise)news. 【2】How many ______(sheep)can you see in the picture? 【3】You must try and keep your ______(spirit) up.
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People often like clothes ______ can make them look young.
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用定语从句改写下边的句子 【1】The teacher is Miss Liu.She teaches us English. _________________________ 【2】I will remember the day.It is my birthday. ______________________________________________________ 【3】The factory is my uncle's.
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选做二 假如你叫李亮,上周六参加了刘公岛一日游,请根据下列信息给你的同学Tony写一封email,介绍刘公岛. 要求: 1.包含表格中要点,适当使用描述性语言,展现刘公岛的魅力. 2.词数:80~100. 刘公岛概况 威海东部,岛长4.08km,宽1.5km,面积3.15km 2 ,船程20分钟,花草树木覆盖,有历史博物馆、动物园等景点,可以进行水上环岛游等活动. 交通方式 汽车、火车等. 游览时间 一天. ______________
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选做一 一个美国青少年交流团来到你们学校,根据下列提示,请你以"Welcome to China"为题目,为这些同学做一个报告,将中国介绍给交流团的同学们.词数:80~100.文章的开头和结尾已给出,不计入总词数. Country China,one of the oldest countries Location in the east of Asia Population over 1.3 billion Capital Beiji
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旅游可以让我们放松身心,增长见识.很多同学都喜欢利用假期去旅游.请你根据表格内的提示内容,补充下文关于悉尼歌剧院的介绍. 位置 位于澳大利亚最大城市--悉尼 形状 像一艘三边都有水的大帆船 大小 长183米,宽118米,高67米 历史 1959年开始建造,1973年完工 评价 1.世界上最大、最繁忙的艺术中心(art centre)之一; 2.悉尼的灵魂、澳大利亚的象征之一; 3.每年吸引数百万的游客. ________________
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I was very surprised at how big his house was.(be surprised at对……感到惊奇) 我们对他告诉我们的那个消息感到很惊讶. ______
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They went out of their room to enjoy the warmth of the sun.(enjoy喜欢) 他也喜欢去海滩游泳和冲浪或者只是躺在阳光下. ______
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It is a good habit to wash hands before meals.("It is + 名词 + to do sth."结构) 这是一个游览和休闲的好地方. ______
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补全对话(有两个多余选项) Lingling : This is a photo of the Blues Boys playing in a concert last month . They are really great . Daming : 1 . 【 1 】 Lingling : Yes , they play really great music . 2 . 【 2 】 , and the boy in the front
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用所给单词的适当形式填空 【1】Do you know how______(drive)a car? 【2】We Chinese are used to______(eat) with chopsticks. 【3】The question is really difficult for us ______(understand). 【4】We should ______(plant)more trees to make our cit
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