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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·信息匹配细节理解

任务型阅读这学期我们七年级设立了许多校本选修课。请你根据以下五位同学对自己兴趣爱好的描述帮助他们选定一门选修课程，并将课程序号（A-F）分别填入相应的空格。其中一项多余。 Subjects A B C D E F Wenzhou History Art Club Music Club Hand-made Club Basketball Club Photo Club Names Hobbies Bill （1）_________ I

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七年级·英语·阅读理解细节理解,日常生活类,推理判断

“DIY” is very popular*these days. “DIY” is short for “Do it yourself”. Many American people want to do things by themselves. They don’t like to ask other people to come to help, and they are always happy after a lot of d

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七年级·英语·阅读理解主旨大意,词句猜测,细节理解,人物传纪/故事阅读类

It is New Year’s Day today and the weather is very cold. After visiting a friend in the hospital, I come into a small restaurant to have lunch because I am cold and hungry. When I am having lunch, I find an old woman buy

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七年级·英语·阅读理解细节理解,广告布告类,推理判断

Visit Swansea Zoo Come and see the Indian elephants and the new tigers from America. The bears are waiting to meet you, and t he monkeys from China are waiting to throw things at you. The lovely dogs from Australia are w

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七年级·英语·填空题词义辨析,人物传纪/故事阅读类,逻辑推理,固定搭配

阅读下面短文，掌握大意，然后从A、B、C、D四个选项中选出一个最佳选项。 Jack lives in a small town in England. He always stays in (1) during his holiday, but this year he thinks, “I (2) go to other countries. All of my friends go to China, and they like (

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七年级·英语·选择题疑问句

--- _____ milk would you like, Bob? --- Well, one cup is OK.

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七年级·英语·选择题动词短语辨析

--- What are you doing here? --- I’m________ my lessons and I want to get a better score .

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七年级·英语·选择题一般将来时

--- Tom, can you play basketball with me next Sunday? --- Sorry, I _____ my grandparents with my dad.

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七年级·英语·选择题名词辨析

--The sweater is not the right________ for me. It’s too small. --Well, let me get you a big one.

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七年级·英语·选择题一般过去时

Last night I went to see Tom but he _____ at home.

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七年级·英语·选择题物主代词

— Is this your notebook? — No, it isn’t. Ask Lucy, I think it’s________.

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七年级·英语·选择题形容词辨析

--We will have a lot of robots in the future. --Yes. I think people will only do _____ jobs because robots will help do heavy jobs.

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七年级·英语·选择题介词和介词短语

---What do you usually do ________Sunday morning? ---I usually go swimming.

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七年级·英语·选择题零冠词

--- Excuse me , how can I get to the Big Ben? --- It’s near here. You can go there by________ bike

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七年级·英语·选择题形容词辨析

Though he is _______at home, he doesn’t feel ______for he has many things to do.

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七年级·英语·阅读理解细节理解,日常生活类

判断正（A）误（B） Mrs. Jones is a teacher in the USA. She works in a middle school. She has a son. His name is David. David likes her very much, so Mrs. Jones often takes him to the zoo. Today is Sunday and Mrs. Jones doesn’t h

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七年级·英语·选择题动词不定式

I wish ____ that small village one day.

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七年级·英语·选择题动词辨析

Animals are our friends. So we can’t _____ them.

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七年级·英语·选择题形容词辨析

The girl is very ____. She doesn’t like talking.

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七年级·英语·选择题介词和介词短语,形容词辨析

I usually eat ____ fruit and vegetables for lunch, because they are good ___my health.