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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
莉莉4岁,但她会说3种语言。 Lily is only 4 years old, but she______ 3 languages.
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--你能来和我们一起打棒球吗? --我恐怕不能。我必须为考试而学习。 ______ you______ and______baseball games with us? I'm afraid not. I______a test.
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我不能去看我的祖母,因为我不得不做家庭作业。 I______my grandmother because I______ my homework.
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你不可以将这本书拿回家。 You______ the book home.
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任务型阅读 Hello, I am George. I am a student of Class 1 Grade 7. I have a nice family. There are five people in my family. My father is a manager of a hotel. My mother is an English teacher in my school. My sister is Linda.
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阅读理解 Hello, nice to meet you. My name is David and I'm a student at Beijing International(国际的)School. This is a photo of my family. These are my parents and my little sister is behind me. We're from America and we're in
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阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空白处填入一个适当的词或使用括号中词语的正确形式填空。 This is a picture 【 1 】 Mr. White's family. The man in the middle is Mr. White. He is a 【 2 】 (work). The woman is Mrs. White. She is 【 3 】 doctor. They have a son
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Look at the photo on the wall. This is a(n) _______ of Smith's family. This _______ is Mr. Smith. He is the father of _______ children. He has got a son and a(n) _______ . There are two _______ in the photo. The one on t
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用适当的人称代词或物主代词填空 【1】Xiaoming and his brother are in the same school. And __ favourite sport is football. 【2】—Is this your new bike? —No, __ is Li Ming's. 【3】—How old is the boy? —__ is ten years old. 【4】—Is he your father
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用方框中所给单词的适当形式填空 man;work;that;be;on;who 【1】That __ is my teacher. 【2】The hospital is __ the left. 【3】These books __ my father's. 【4】My grandparents are farm __. 【5】__ policemen are very handsome(帅气的). 【6】—__ is the woman
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根据句意及汉语提示完成单词 【1】__ (我们)are Chinese. 【2】Her __ (丈夫)is a doctor. 【3】__ (他们的)farm is very big. 【4】Those __ (妇女)are our teachers. 【5】A big __ (商店)is next to my home.
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他们现在正在游泳. They______ now.
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他们从下午3点就在这里了. They______ since 3 p.m.
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有一天他正在看电视,一场足球比赛开始了. He______ one day______ a football match came on.
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去年,我父母带我度过了一个非常特别的假期. Last year,my parents took me______.
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They walked t______ the forest and came to a village.
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On 22nd January,2007,Dave Cornthwaite from the UK became the first person to skateboard across Australia. He made a new world record, by skating a total of 5,823 kilometers. Jack Smith, the previous ( 前任的) champion, had
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Jack Johnson is one of the most popular singer-songwriters in the world. Jack was born on May 18,1975 in Hawaii. Being the son of a famous surfer,Jack naturally has an interest in surfing. Most of his life lessons were l
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-I have trouble learning math this term. -You should pay more to your teacher's advice.( )
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阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空白处填入一个适当的词或使用括号中词语的正确形式填空。 Ms. Steen is our English teacher. She is from England. She 【 1 】 (start)to teach us last year. But now she is 【 2 】 (leave)for her country. We are so sad to see her
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