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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·填空题任务型阅读

As we know,children around the world have all kinds of ways to go to school.Mostly,they go to school by bus,by bike or by subway.However,in some places,children have to climb mountains or cross rivers to reach their scho

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七年级·英语·填空题任务型阅读

Follow the rules,and stay ______ (safe) on the road.

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七年级·英语·填空题阅读表达

Lisa is ten years old.She is handicapped(残疾的).She could not dress herself or feed herself until a year ago.Her parents loved her,but they treated (对待) her like a baby. Mr.Chen has a daughter and a son.They live far from

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七年级·英语·选择题反意疑问句

It\’s too dark in the room.He can hardly see anything,_____?( )

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七年级·英语·选择题一般疑问句

—Let\’s play volleyball this afternoon. —Sorry,I want my aunt.( )

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七年级·英语·选择题反意疑问句

Granny______glasses when she reads newspapers.( )

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七年级·英语·选择题时态辨析

My grandfather ______ movies on TV every evening.

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七年级·英语·选择题过去将来时的被动语态

Listen!The secretary _______ the phone.( )

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七年级·英语·填空题过去将来时的被动语态

Don\’t make any noise here.My mother ______ (lie) in the bed and sleeping.

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七年级·英语·填空题社会文化类阅读

My name is Li Hong.Li Jia (1)______ (be) my sister.We are in the same school,but in (2)______ (difference) grades.On weekdays,we ride our bikes to school (3)______ seven o\’clock.And then we have breakfast at the school

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七年级·英语·填空题图画作文

为增进校园文化交流,育英中学将与英国一学校开展一次"云访学校"的线上活动.假如你是该校学生代表,请根据学校地图(如下),向英国师生介绍校园的建筑. 注意:(1)短文须包含图示所有信息,可适当发挥. (2)短文中不得出现真实的人名、校名和地名. (3)词数50个左右(开头已给出,不计入总词数). Welcome to our school.Let\’s look at the map of our school._______

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七年级·英语·填空题图画作文

Write at least 60 words about the topic"My dream smart home study(书房)"(请以"我梦想中的智能书房"为题,写一篇不少于60个词的短文,标点符号不占格) Suggested questions: (1)How is your home study? (2)What smart devices do you think should be included in the s

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七年级·英语·填空题科普知识类阅读

Nowadays,the smart(智能的)phone is very popular in our life.You may know a lot about smart phones.But what about smart cities? When you (1)______ up in the morning,you say "(2)______ the window" to a computer and it opens t

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七年级·英语·填空题图画作文

实地考察旅行给了比尔呆在户外和接近自然的机会. Field trips give Bill a chance to ______ and ______.

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七年级·英语·解答题图画作文

请从下面两幅图中选择一幅图进行描写. 要求:(1)认真观察图画,把观察到的内容写成一段通顺的话. (2)可以给图中人物起名字,展开合理的想象. (3)作文内容逻辑合理,语篇完整,关联性强,才可以得满分. (4)不少于五句话,注意规范书写. 图1 图2

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七年级·英语·填空题社会文化类阅读

Look at this photo.The first woman on the left is our ______ .(班主任)

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七年级·英语·填空题判断推理

根据短文内容,判断句子是否正确,正确选"A",错误选"B". Lu Ban was a famous craftsman in China long long ago.His father was a craftsman,too.He usually worked with his father and learned a lot from him.One day,he worked on a mountain.His hand was

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七年级·英语·填空题判断推理

morning greet teach good too am other meet name everyone Hello!My(1)______ is Lin Tao.Frank is my English name.I (2)______ in Class Three in No.1 Middle School. It is 8:00 in the (3)______ .At the gate(大门)of the school,I

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七年级·英语·填空题判断推理

Nowadays,AI(人工智能) is playing a big role in our world.It helps us with many things,like work and everyday tasks.Some people are even making friends with AI,which is a new and interesting change. In China,this is happening

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七年级·英语·填空题判断推理

I\’m a girl.My name is Jenny.I\’m in Shanghai with my family now.I like drawing(画画).Look at my pencils.They are red,green,brown,orange and yellow.My favorite(最喜欢的) colors are blue and yellow.I draw pictures with my penci

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