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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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九年级·英语·填空题人生感悟类阅读
As we know,eating vegetables is good for us.Why do some people like them but others don\’t?A new study has found that other people\’s likes and dislikes could be a reason.According to the research,people who eat vegetabl
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八年级·英语·填空题定语从句
Feel sad?Hug a tree!Recently,many Chinese young people turn to trees to help with their problems.Maybe it sounds strange,but there\’s a science behind the tree-hugging. The "biophilia hypothesis（亲生命假说）" tells us the reas
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八年级·英语·填空题定语从句
The two famous w ______（作者）gave us a report on Chinese culture yesterday.
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九年级·英语·选择题主语从句
_______ is very dangerous to swim alone in the river．（ ）
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九年级·英语·选择题主语从句
It’s necessary for us English well．（ ）
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九年级·英语·选择题主语从句
Is it always easier ________ friends than to keep them？（ ）
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七年级·英语·填空题反意疑问句
Our school ID cards are in the classroom.（改写为一般疑问句） ____________school ID cards in the classroom?
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九年级·英语·选择题定语从句
—I\’ve made good friends with several of the students in my school _________ I met in the English speech contest last week. —How lucky you are!The more friends we have,the happier we are.（ ）
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九年级·英语·填空题定语从句
In ancient China,willow branches （柳枝） were often used as a gift to friends and family members when they would leave.Do you know why willow branches are a symbol of saying goodbye? One reason is that willow trees are stro
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九年级·英语·填空题历史文化类阅读
______（not） use water to put out kitchen fires.Use baking soda or salt instead.
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九年级·英语·填空题历史文化类阅读
Now,the Shenzhou-19 manned spacecraft was successfully launched（发射）at 4:27 on October 30,2024.It launched a Long March 2 F carrier rocket from the Jiuquan Satellite Launch Center.Its mission（任务）is to send three astronaut
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七年级·英语·填空题历史文化类阅读
I have a pen pal.We often chat on WeChat.Now let me （1）______you something about him. My pen pal\’s name is Xu Fei.He （2）______in Beijing.He is a student of Grade Seven.There are （3）______people in his family—his dad,his
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九年级·英语·填空题历史文化类阅读
A.beside B.really C.plan D.dislike E.perfect F.between G.grammar Can you understand the following words? "Good good study,day day up." "You（1）______ have two brushes." Yes,we call these examples Chinglish,like "people mo
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九年级·英语·翻译题现在完成时的被动语态
打字机已经被电脑取代。 _____________________________________________________
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九年级·英语·填空题现在完成时的被动语态
语言基础知识 【1】She has improved her English a lot by watching the________（演讲）from TED. 【2】It’s a tradition for a Chinese family to buy a new________（挂历）when the new year is drawing near. 【3】Can your brother pass these________
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九年级下·英语·句型转换现在完成时的被动语态
The government has made enough laws to fight against pollution. （改为被动语态） Enough laws________ ________ made to fight against pollution by the government.
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九年级·英语·选择题现在完成时的被动语态
So far, over 200 million trees _______ with the help of Alipay Ant Forest.（ ）
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九年级·英语·句型转换现在完成时的被动语态
请根据要求改写下列各句，每空一词。 【 1 】 It took workers nine days to build a Fire God Hill Hospital in Wuhan. ( 对划线部分进行提问 ) ________ did it take workers to build a Fire God Hill Hospital( 火神山医院 ) in Wuhan? 【 2 】 My mother bought me a co
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九年级·英语·选择题感叹句
bad weather today is!（ ）
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九年级·英语·完成句子现在完成时的被动语态
海洋塑料已随处可见。 Ocean plastic has ________ ________ everywhere.
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