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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·选择题Unit 1 My family always go somewhere interesting as soon as the holiday begins.
They ______ friends since they met in Shanghai．
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九年级·英语·选择题Unit 1 My family always go somewhere interesting as soon as the holiday begins.
As soon as he ______ enough money，he will buy the MP4 player．
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九年级·英语·选择题Unit 1 My family always go somewhere interesting as soon as the holiday begins.
She won't go to bed until she ______ the novel．
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九年级·英语·选择题Unit 1 My family always go somewhere interesting as soon as the holiday begins.
______ I came home，my son was writing a composition．
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九年级·英语·翻译题Unit 1 My family always go somewhere interesting as soon as the holiday begins.
Ⅱ．翻译句子 【1】贝蒂，“五一”节你有什么计划？（plans） _______________________________________________________________________ 【2】暑假一结束我们将返回学校。（as soon as） _______________________________________________________________________ 【3】在独立日这一天人们将会
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九年级·英语·单词拼写Unit 1 My family always go somewhere interesting as soon as the holiday begins.
Ⅰ．单词拼写 【 1 】 We will hold a party to c ______ Mother's Day ． 【 2 】 In China the L ______ Day is on May 1st ． 【 3 】 Do not make any noise w ______ your mother is writing ． 【 4 】 Summer is the hottest s ______ of the year
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九年级·英语·选择题Unit 3 Language in use
He was late for school ______ he helped an old woman go home on his way to school．
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九年级·英语·选择题Unit 3 Language in use
She died in London ______ 13th August 1910，______ she was ninety years old．
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九年级·英语·选择题Unit 3 Language in use
I got up early ______ I could catch the first bus．
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九年级·英语·填空题Unit 3 Language in use
Ⅰ．用所给单词的适当形式填空 【1】Many people were ______（die）because they didn't get to hospital quickly enough． 【2】Norman Bethune invented new tools for ______（operate）to help the ______（wound）soldiers． 【3】Though he was very tired，he
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九年级·英语·阅读理解Unit 3 Language in use
Many people think heroes need to be handsome， rich， or very smart． But as for me， a hero is a person who always helps others． My hero is Uncle Bill． He is the oldest son of a worker， an he grew up in a poor family with f
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九年级·英语·选择题Unit 3 Language in use
-Hi，Julia! Why didn't you come to the party yesterday ？ -______ I had to look after my little brother at home．（ ）
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九年级·英语·补全对话Unit 3 Language in use
Ⅳ．补全对话 A ： Congratulations ！ You have won the first prize in the City Violin Competition ． B ： 1 ． 【 1 】 ． A ： 2 ． 【 2 】 ？ B ： Since I was four years old ． I've learnt it for five years ． A ： 3 ． 【 3 】 how to play the vi
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九年级·英语·句型转换Unit 3 Language in use
Ⅲ．句型转换 【 1 】 The man is very old ， so he can't go on working ．（改为同义句） ______ the man is very old ， he can't go on working ． 【 2 】 We'll have to run faster to catch up with others ．（改为同义句） We'll have to run faster ______
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九年级·英语·选择题Unit 2There were few doctors, so he had to work very hard on his own.
He is ______ a cute baby ______ we all like him．
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九年级·英语·选择题Unit 2There were few doctors, so he had to work very hard on his own.
He works hard______ he can pass the exam．
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九年级·英语·选择题Unit 2There were few doctors, so he had to work very hard on his own.
After he joined the army,he made his mind to ______ his motherland．
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九年级·英语·选择题Unit 2There were few doctors, so he had to work very hard on his own.
We shouldn't go to school ______ breakfast.It's bad for our health．
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九年级·英语·选择题Unit 2There were few doctors, so he had to work very hard on his own.
______,he decided to go abroad for further study．
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九年级·英语·选择题Unit 2There were few doctors, so he had to work very hard on his own.
After her son died in an accident,the old woman treated her dog ______ her son．
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