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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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八年级·英语·书面表达Section B

假如你是Mary,请根据下列图片及英文提示，以"My lifestyle"为题写一篇70词左右的英语短文，谈谈自己的日常生活方式。 My lifestyle

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八年级·英语·书面表达Section B

每个人的生活方式和习惯都不同。请根据表格提示，比较两个好朋友的生活习惯，并简要发表自己的评价。70词左右。 Activities Bill Time Exercise 一周两次每天 Go online 每天一周三到四次 Watch TV 几乎每天每周一到三次

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八年级·英语·单词拼写/单词释义Section B

尽管她喜欢吃垃圾食品，但她只有时候吃。 ______

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八年级·英语·单词拼写/单词释义Section B

杰克和迈克一星期锻炼两次。 ______

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九年级·英语·填空题Unit 1 They sometimes work harder.

I feel lucky that I live in the modern age. People are 【 1 】 ( 富有的 ) and live longer than in the past. We know how to deal with the 【 2 】 ( 普通的 ) diseases, so we have less 【 3 】 ( 害怕 ) of getting ill. And we have more 【

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九年级·英语·选择题Unit 1 They sometimes work harder.

He practiced English every chance he could catch. So now he can speak English _______ local Americans.

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九年级·英语·选择题Unit 1 They sometimes work harder.

Bruce ______ watches TV or listens to the radio, so he knows nothing about it.

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九年级·英语·填空题Unit 1 They sometimes work harder.

two, think, such as, few, or, do, with, how, way, happy Happiness is important for everyone. Most people want to be happy but 【 1 】 people know how to find happiness. Money and success don't bring lasting happiness. Happ

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九年级·英语·阅读理解Unit 1 They sometimes work harder.

Sometimes people come into your life and you know that they were sure to be there at once. They may come for some reasons: teach you a lesson or help to find out who you are or who you want to become. You never know who

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九年级·英语·补全对话Unit 1 They sometimes work harder.

根据对话内容，从方框中选用适当的句子完成对话。其中两项为多余选项。 Mr. Crum is talking with his doctor. A is for Mr. Crum; B is for the doctor. B: Mr. Crum, please. A: Hello, doctor. B. How are you? A: I'm fine, thank you, doctor, but I need your advice

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八年级·英语·填空题Section A

用括号中所给单词的适当形式填空【1】The girl often _____(help)her mother do some housework on weekends. 【2】Bill goes to see his grandparents _____(one)a week. 【3】My father likes Beijing Opera very much.He _____(watch)it on TV every day.

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八年级·英语·单词拼写Section A

根据句意及首字母或汉语提示完成单词【1】_____(或许)I can go shopping this afternoon with you. 【2】The air was f_____ of the fragrance(芳香)of flowers. 【3】We should read English for at _____(至少)thirty minutes every day. 【4】Take care！If you lose

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八年级·英语·任务型阅读Section A

下面文章有四处(第1～4题)需要添加小标题。请从以下选项(A、B、C、D)中选出符合各段意思的小标题，并回答第5小题。 Before you start your day，the following lifestyle habits are good for you. A．A balanced breakfast B．A morning walk C．Stretch in the shower D．Listen to some musi

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八年级·英语·填空题Section A

Maria is my friend.She had bad _____ two years ago.For example ， she got up late and had _____ for breakfast.She disliked _____ school activities.After _____ home from school ， she usually played computer games and _____

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八年级·英语·填空题Section A

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。 Joy loves instant noodles( 方便面 ) ． She eats them at least 【 1 】 (one)a week.She has a way to make them more delicious.She 【 2 】 (write) ， “Although I know it is not

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八年级·英语·填空题Section A

用方框中所给短语的适当形式填空 go to the movies；twice a week； hardly ever; watch TV；on weekends 【1】What do you usually do _____？【2】I _____ go to the concert，because it's too noisy. 【3】—Would you like ____ with me? —Why not? 【4】Lisa li

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七年级·英语·填空题Section B

Hey， Mary! Let me get some______ （salad） for you．

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七年级·英语·填空题Section B

Alan， those are not______ （tomato）．

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七年级·英语·单词拼写-单句Section B

Jeff can see some______ in the bag．

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七年级·英语·填空题Section B

Jackie， can you get five______ for me？