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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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不限七年级八年级九年级

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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·选择题实义动词的过去分词

—Sorry,Mrs.Smith.I won\’t be late again. —Jack,you should make a of being on time for school.（）

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七年级·英语·填空题形容词的原级比较

Look! That is a (China) car.

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九年级·英语·单词拼写形容词的原级比较

China is an important (亚洲的) country.

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七年级·英语·选择题定语从句

John is a mean boy because he doesn\’t want to share（分享） his toys with his brother.这句话中划线单词"mean"的意思是 ____________.（）

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八年级·英语·选择题定语从句

﹣﹣﹣The computer is cheap but it works well． ﹣﹣﹣Yes,that\’s the _____________ why I bought it．（）

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八年级·英语·填空题定语从句

Have you ever done or thought about volunteering before?Volunteering means spending time and effort（精力） to help somebody or something.As for me,I\’ve volunteered at an animal shelter（收容所） to help feed and（1）t ______ dogs

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八年级·英语·填空题翻译填空

English is one of the most important______ （语言） in the world．

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九年级·英语·填空题史地常识类阅读

It is said that every year on the second day of the second lunar month,the dragon wakes up and raises its head.Because of this,the day is called"Dragon Head-raising Day"（Longtaitou）.This year,it falls on March 11.Old peo

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八年级·英语·填空题史地常识类阅读

Each ______ （主席） went to observe 3-minute silence to the Queen Elizabeth Ⅱ.

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九年级·英语·填空题史地常识类阅读

A:Wang Na,how many popular festivals are there in your country? B:There are many,such as the Lantern Festival,the Dragon Boat Festival,the Double Ninth Festival and so on. A:（1）______ B:The Double Ninth Festival,I think.

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八年级·英语·填空题史地常识类阅读

Disneyland Park Introduction There are（1）_________Disneyland Parks in the world. Interesting things •Children can join in lots of exciting（2）_______and meet many cartoon characters. •Parents can take a walk（3）_______8 an

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九年级·英语·选择题史地常识类阅读

The New Year\’s Eve dinner is a time for people in China to their family and friends and show hope for the coming year.（）

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七年级·英语·选择题感叹句

______ nice the picture is!（）

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八年级·英语·填空题史地常识类阅读

The Chinese tea ceremony（仪式） is a practice of preparing,serving,and enjoying tea.It might start in the Tang Dynasty or even earlier and it reached its greatest time in the Song Dynasty.The traditional Chinese tea ceremon

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九年级·英语·填空题史地常识类阅读

Every year,some inventions are making the world better and a bit more fun.Let\’s see some of them. A girl in hospital had hardly eaten anything for two days.The nurse took Robin,a robot,into the girl\’s room.After chatti

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九年级·英语·填空题史地常识类阅读

Falling on the 24th day of the sixth lunar （农历） month,the Torch （火把） Festival is an important and traditional event for the Yi ethnic group （彝族） in Southwest China.Cheering,singing and dancing,local Yi people and the tou

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七年级·英语·填空题人生感悟类阅读

Skye is so kind that she teaches children with ______（特别的） needs and brings them lots of fun.

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九年级·英语·选择题主语+及物动词+宾语+宾语补足语

-I like this set of sofa so much，but I don't know it in my small house． -You're supposed to put it in the living room．（）

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九年级·英语·选择题主语+及物动词+宾语+宾语补足语

My neighbor won't stop ____ noises at midnight．Can you give me some suggestions on _________？（）

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九年级·英语·选择题主语+及物动词+宾语+宾语补足语

You should keep the window because the room is too hot．（）