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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·书面表达Unit 4 After-School Activities

暑假就要来了，假如你们班就 “ 如何度过一个有意义的暑假 ” 这一话题展开了讨论，请你观察下图的讨论结果统计图表，根据所给提示和要求写一篇发言稿。提示： (1)What do your classmates plan to do in their summer holiday? (2)Why do teenagers need to take part in social practice activities? 要求： (1) 发言

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七年级·英语·填空题Unit 4 After-School Activities

Learn English online. Join a funny and international club after class. Learn English ____ reading and communicating naturally. Join our Power English Club. Power English is more than a great lesson pack( 打包 ). It is also

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七年级·英语·填空题Unit 4 After-School Activities

( 素材选自 English in Mind Book 1) 学生是否应该在学校使用手机 Nowadays, mobile phone has been a necessary part of our life. Wherever you go, you can usually see people getting o 【 1 】 and playing their phones. However, at school, there a

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七年级·英语·单词拼写Unit 4 After-School Activities

(2020 原创 )Maybe I should cut off a f ________ of my activities to help my mother do the housework.

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七年级·英语·单词拼写Unit 4 After-School Activities

(2020 原创 )I really take p ________ in my father. He always helps others when they are in trouble.

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七年级·英语·填空题Unit 4 After-School Activities

(2020 原创 )There are four great ________ (invent) in China. They are printing, paper making, gunpowder and compass.

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七年级·英语·填空题Unit 4 After-School Activities

(2020 原创 )The Internet has been ________ (wide) used in our daily life. It has changed our life a lot.

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九年级·英语·选择题Unit 8 Surprise endings

- Every time I see the crippled woman, I will _____________ my hands to steady （稳住） her. -What a kind boy you are!（）

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九年级·英语·选择题Unit 8 Surprise endings

- Jack, you must ____________ your attention ____________ the class.Don't look here and there. -Sorry, Mr Wang. I will do as you say.（）

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八年级·英语·填空题Unit 1 Could I ask if you' ve mentioned this to her?

用方框中单词的适当形式填空。其中有两个单词多余。 from, is, ready, on, or, choose, even, chance, role, listen, sick, hear Friendship is very important in our life. Everyone should at least have one 【 1 】 two good friends. But what are good frien

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八年级·英语·补全对话Unit 1 Could I ask if you' ve mentioned this to her?

根据对话内容 , 从方框中选出能填入空白处的最佳选项。其中有两项为多余选项。 A: Morning. This is Friendship Helpline. B: Hello. 【 1 】 A: Can I help you, Wang Fei? B: Please give me some advice on how to make friends. A: OK. 【 2 】 When you smile, people think

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八年级·英语·句型转换Unit 1 Could I ask if you' ve mentioned this to her?

句型转换【 1 】 I want to know. Who is she?( 合并为一句 ) I want to know ________ ________ ________ . 【 2 】 Try to translate every word into Chinese.( 改为否定句 ) Try ________ ________ translate every word into Chinese. 【 3 】 Was the

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八年级·英语·完成句子Unit 1 Could I ask if you' ve mentioned this to her?

根据汉语意思完成下列句子 , 每空一词【 1 】上周我和我的学生们产生了矛盾。 I ________ ________ ________ ________ my students last week. 【 2 】他对他的学生一直很有耐心。 He's ________ ________ his students all the time. 【 3 】我们确信贝蒂后悔拒绝了你。 We're sure Betty ________ _

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八年级·英语·选择题Unit 1 Could I ask if you' ve mentioned this to her?

—Would you please help me with my writing skills? — ________.You can come to my office every Saturday.

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八年级·英语·选择题Unit 1 Could I ask if you' ve mentioned this to her?

I regret ________ her advice on how to make fewer mistakes.

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八年级·英语·选择题Unit 1 Could I ask if you' ve mentioned this to her?

Can you tell me ________ your bike this Sunday?

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八年级·英语·选择题Unit 1 Could I ask if you' ve mentioned this to her?

Miss White encouraged Lucy ________.