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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 Will computers be used more than books in the future?

—Sir, could you please put out your cigarette? This is a smoke-free (无烟的) school. —______

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九年级·英语·句型转换Unit 1 Will computers be used more than books in the future?

Ⅰ.将下列句子改为被动语态 【1】They will give her a gold medal. _________________________________________________________ 【2】They will read the book. _________________________________________________________ 【3】The rabbits will eat th

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九年级·英语·句子翻译Unit 3 Language in use

我想去机场给他们送行. (see …off) ______

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九年级·英语·书面表达Unit 3 Language in use

在英语课上,同学们就自己喜欢的旅游方式展开了讨论。请你根据下表内容,用英语写一篇短文,汇报讨论结果,并谈谈自己的想法。 团队旅游 ◆有导游,不会迷路; ◆不必自己找旅馆; ◆结识朋友,相互帮助。 个人旅游 ◆自由安排时间; ◆选择自己喜欢的旅游景点; ◆学会照顾自己。 你的想法 …… 注意: 1 .文章必须包括表中的全部内容,可适当增加细节; 2 .想法至少在两句以上; 3 .开头已给出,不计人总词数; 4 .词数: 80 左右。 参考

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九年级·英语·句型转换Unit 3 Language in use

Ⅲ.句型转换 【 1 】 Have you heard of the magazine called Reader ? (改为复合句) Have you heard of the magazine ______ ______ ______ Reader ? 【 2 】 Lucy told an interesting story. (改为感叹句) ______ ______ ______ story Lucy told! 【 3 】 I

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九年级·英语·选择题Unit 3 Language in use

______ Tom ______ Mary speak Chinese very well, so they can communicate with these Chinese students very well.

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九年级·英语·选择题Unit 3 Language in use

—May I ______ your Chinese ­English Dictionary? —Sorry, I ______ it at home.

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九年级·英语·选择题Unit 3 Language in use

We need two more rooms ______.

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九年级·英语·选择题Unit 3 Language in use

—Have you read today's newspaper? —Yes. But there is nothing exciting ______.

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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】It is important for students ______ (study) English. 【2】Mo Yan is one of ______ (famous) writers in China. 【3】Who was the first ______ (get) to school today? 【4】The national flag ______ (use) as a symbo

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九年级·英语·句型转换Unit 2 The game that they like most is Australian football.

Ⅲ.用所给单词把两个句子合并成一个句子 【1】Tom arrived at his school.He started his lessons.(after) ________________________________________________________ 【2】It's December.It's summer in Australia.(although) ______________________________

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九年级·英语·选择题Unit 2 The game that they like most is Australian football.

Is ______ you borrowed from the library?

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九年级·英语·选择题Unit 2 The game that they like most is Australian football.

When will the man ______ wrote a letter to you last month arrive?

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九年级·英语·选择题Unit 2 The game that they like most is Australian football.

Did you find the notebook ______ Jim had given me for my birthday?

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九年级·英语·选择题Unit 2 The game that they like most is Australian football.

This is the cage ______.

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九年级·英语·选择题Unit 2 The game that they like most is Australian football.

This is the best film ______ has been shown this year.

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九年级·英语·选择题Unit 2 The game that they like most is Australian football.

I'm looking at the photograph ______ you sent me with a letter.

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九年级·英语·填空题Unit 2 The game that they like most is Australian football.

Ⅰ.用所给单词的适当形式填空 【1】We were all ______(surprise)at the ______(surprise)news. 【2】How many ______(sheep)can you see in the picture? 【3】You must try and keep your ______(spirit) up.

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九年级·英语·选择题Unit 1 I have some photos that I took in Australia last year.

People often like clothes ______ can make them look young.

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九年级·英语·完成句子Unit 1 I have some photos that I took in Australia last year.

用定语从句改写下边的句子 【1】The teacher is Miss Liu.She teaches us English. _________________________ 【2】I will remember the day.It is my birthday. ______________________________________________________ 【3】The factory is my uncle's.

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