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不限语文数学英语物理化学生物历史地理道法

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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|}=

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七年级·英语·阅读理解Unit 3 Language in use.

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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七年级·英语·填空题Unit 3 Language in use.

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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七年级·英语·填空题Unit 3 Language in use.

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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七年级·英语·单词拼写Unit 3 Language in use.

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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七年级·英语·填空题Unit 3 Language in use.

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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七年级·英语·单词拼写Unit 3 Language in use.

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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七年级·英语·单词拼写/单词释义Unit 2 These are my parents.

Hello, I am Jenny. Let me tell you something (1) me and my brother John. Our parents are busy, so we need to clean our own rooms and our (2) （parent）room, too. You see, this is my room and that is his room. My room is ti

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七年级·英语·填空题Unit 2 These are my parents.

---Excuse me,What's this in English？ ---It′s ______eraser. （a）

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七年级·英语·补全对话Unit 2 These are my parents.

be,thing,at,it,need Mom：Hello. Tom：Hi,Mom.Could you bring some (1) to school for me？ Mom：OK. Tom：I need my English books. Mom：English books？Where (2) your English books？ Tom：Hmm, (3) are on the chair. Mom：OK. Tom：I also

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七年级·英语·单词拼写/单词释义Unit 2 These are my parents.

I am a student in Class 7.I can be your friend.My (1) name is David.My last name is Miller.Look!This is a photo of my family.This is my father.His favorite（最喜欢的） (2) is white.My favorite is white (3) .And this is my moth

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七年级·英语·阅读理解Unit 2 These are my parents.

Pam is busy every day.She has two jobs and works six days a week.And she is a mother of two children.She drinks a lot of coffee.It helps her stay awake. After work,Pam cooks dinner for herself and her children.Then she a

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七年级·英语·阅读理解Unit 2 These are my parents.

My mother doesn't like being common.While she's shopping she doesn't look at the common things at all.One day,she wears red jeans and a bright pink sweater for a party.I ask her,"Why do you dress like that？" "What's wron

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七年级·英语·阅读理解Unit 2 These are my parents.

My name is Monifo.I am from America （美国） .Amy is my friend.She is Chinese.She lives here with her family.We are in the same grade.But we are not in the same class.She is very friendly and plays with me after class.And sh

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七年级·英语·阅读理解Unit 2 These are my parents.

Tony is from New York. His father has a shop there. And his mother is a reporter. He's six years old now and begins to go to school this year. It's very near their shop and his father doesn't drive a car to take him to s

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七年级·英语·单词拼写/单词释义Unit 1 Is this your mum?

You can see ________________________ （一张玛丽的照片）.

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七年级·英语·单词拼写/单词释义Unit 1 Is this your mum?

My sister is ________________________（在第一张照片中）.

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七年级·英语·单词拼写/单词释义Unit 1 Is this your mum?

谁更外向，李磊还是张华？ ______ is more outgoing,Li Lei ______ Zhang Hua？

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七年级·英语·单词拼写/单词释义Unit 1 Is this your mum?

我和我的妹妹分享一个书房。我们在一起写作业、听音乐。 I ______.We do our homework and listen to music together.