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#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·选择题实义动词的现在分词

—Wang Zhou,thank you for ________ this Chinese knot (中国结) for me. —You\’re welcome.Happy Chinese New Year!( )

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七年级·英语·选择题实义动词的现在分词

These oranges ______ Jiangxi.( )

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七年级·英语·填空题实义动词的过去式

Daming\’s mother ______(花费)a lot of money on clothes every year.

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七年级·英语·填空题实义动词的单数第三人称形式

The boy ______(做) his homework after school every day.

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七年级·英语·填空题副词的原级比较

I hope to receive your reply as s ______ as possible.

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七年级·英语·选择题副词的原级比较

My computer is as as yours.( )

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七年级·英语·填空题日常生活类阅读

Michael,Beijing ______

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七年级·英语·填空题日常生活类阅读

Personal Profile Personal Profile Name:Mary Age:13 School:Ocean Middle School Favourite colors: Yellow and orange Favourite thing: A dress from her mother Personal Profile Name:Tom Age:13 School:Golden Time Middle School

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七年级·英语·填空题任务型阅读

I have a big family.My(1)______are kind.My grandpa likes Chinese chess and he has(2)______old chessboard.My grandma likes(3)______interesting books.My father is tall and funny,and(4)______likes fishing.Look,the fishing r

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七年级·英语·填空题任务型阅读

There is a football______(比赛)in our school this afternoon.

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七年级·英语·填空题任务型阅读

A:Hello,Alice!Welcome to my home. B:Thanks a lot,Bob.(1)______? A:I\’m fine.Let me show(展示)you a picture.(2)______? B:I can see a farm.I know your grandpa has a farm.(3)______? A:Yes,it is.Can you see any animals on the

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七年级·英语·填空题任务型阅读

Sam usually gets out of bed at seven o\’clock.But this morning,when Mrs Miller asks him to get up,he (1)______(say),"Mum,please let me sleep for fifteen(2)______(many) minutes." "But it\’s seven o\’clock now,"says Mrs Mi

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七年级·英语·选择题过去将来时的被动语态

--- Look out of the window!It _____. --- Wow.It seldom _____ here in winter.( )

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七年级·英语·填空题过去将来时的被动语态

Luckily,we can spend ______(/ə\’nʌðə/) two weeks staying in Nanjing.

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七年级·英语·选择题过去将来时的被动语态

The machine is broken,I want______.( )

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七年级·英语·填空题阅读填空

It is very ______ (move) to see how much strangers can care for each other.

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七年级·英语·选择题阅读填空

The parents live_____their children.( )

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七年级·英语·填空题人物故事类阅读

I love to visit my grandma\’s farm.I visit it every week (周) .I\’m happy to go there . I love to work (工作)on Grandma\’s farm.I can see the cats and the dogs.I can feed (喂)animals and pick up (捡起)eggs. I love the dogs and

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七年级·英语·填空题人物故事类阅读

Name Age Looks Clothes Favorite Food Du Li 13 black hair a small nose big eyes a pink dress white shoes fish Sandy 12 a round face big eyes a small mouth a red skirt a green shirt hamburgers David 13 brown hair a big nos

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七年级·英语·填空题科普知识类阅读

Using a dictionary ①It is very important for us to use a dictionary when we study English. ②When we read some news or passages in English,we often meet some new words.We can look them up in the dictionary so that we can

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