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高频错题
#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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同学们,请以"My Dream"为题谈谈自己的梦想,并结合自己的习惯,谈谈如何实现自己的梦想,不少于5句话. _____________
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请写一篇英语小短文,和大家分享一下你的几个好的生活习惯.(不少于30词)
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西蒙既是我的邻居也是我的好朋友. Simon ______.
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你校在英语活动周中,为了了解七年级新生对新校园的印象,向同学们开展了题为"My New School Life"的征文活动.请你根据以下提示,写一篇英语短文,介绍一下你的校园生活. (1)How many buildings are there in your school?What are they? (2)Which building is your favourite?Where is it? (3)What do you do
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从这本书中你学不到任何重要的东西.(根据汉语提示完成句子) You can learn ____________ in the book.
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他喜欢听古典音乐. He likes ____________ classical music.
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你想知道Tina是否和Tara一样友好,你可以这样问Tina: Tina, ______Tara?
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假设你参加了一项主题为"运动与安全"的调研.请根据调研问卷中的问题用英语写一篇短文,向专栏投稿. 调研问卷: (1)What\’s your favorite sport? (2)Who do you like to do it with? (3)Why do you like this sport? (4)When and where do you often do this sport? (5)How often do you do
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假如你是 Susan,从美国来到中国生活,今年读初一.请根据下表的提示,用英语写一篇短文,跟中国的朋友作一个自我介绍,词数70左右. Name Susan Nationality (国籍) America Age 13 Looks tall Family Members Jobs Hobbies(爱好) father teacher read books mother nurse go shopping brother student
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a,time,everyone,did,good,have ______?
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My friend Mary is______full of energy and she does exercise every morning.( )
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American boy Rain Price is a student.His dad waved (挥手) him off to school from the bus stop outside his house for half a year.That doesn\’t sound special,but this was not a/an(1)______ goodbye because each day Rain\’s da
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Most children like to watch TV.It\’s very (1)______ and useful.By watching TV,they can get a lot of knowledge and know many(2)______ about their country and the (3)______.They can also see many(4)______ singers and movie
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To us,it seems so natural to put up an umbrella to keep the water off when it rains.But in fact the umbrella was not invented as protection against the rain.Its first use was as a sunshade (遮阳伞). Nobody knows who first i
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假如你是张鹏,你新结识的英国笔友Peter想进一步了解你及你家人的情况.请根据下面的提示给他写一封不少于60词的回信. 写作要点: 介绍个人及家庭成员情况: (1)爸爸:42岁,一名医生,喜欢读书; (2)妈妈:40岁,一位受学生喜爱的老师; (3)你:一名北辛中学的学生,来自七年级六班,喜爱运动. 简单介绍一下在周末你与家人经常做的事. Dear Peter, How are you? Hope to hear from you so
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新星中学在学生会论坛上发起了一个话题讨论帖,请就其内容写一个至少60个词的回帖.讨论帖内容如下: About Friends Posts Photos Videos When a person grows up,he will take up different jobs in different work places.A society(社会)is thus made up of people from all walks of l
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假设你叫李华,你的英国笔友Linda对中国文化很有兴趣,报名参加了汉语培训班参加学习.请根据下列提示给Linda写一封回信. 内容包括:1)向她介绍学习汉语的方法(至少两条); 2)简单向她介绍一个中国的传统节日,包括时间,习俗等; 3)邀请她来中国和你一起过节. 写作要求:1)语言流畅,层次清晰,内容可以适当发挥; 2)词数90-100,开头、结尾部分已给出,不计入总词数; 3)书写规范,卷面整洁; 4)文中不能出现考生姓名和学校名称
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A:Excuse me.(1)______? B:Sure,just go straight ahead and then turn left at the next crossing.You ll see the bus stop. A:Thank you so much.(2)______? B:It takes about 5 minutes. A:I see.I want to go to the City Park.Which
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A boy couldn\’t speak when he was 3 years old.A lot of people thought he was a(1)______ boy .When the boy was at the (2)______ of 9,he could speak but he still couldn\’t speak well .His teacher didn\’t like him at all an
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The boy ________ his seat to an old man on the underground.( )
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