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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 Daming wasn’t chosen for the team last time.
—I have finished all you told me to do. —______, boy!
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九年级·英语·选择题Unit 1 Daming wasn’t chosen for the team last time.
—What does CCTV stand ______? —China Central Television.
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九年级·英语·选择题Unit 3 Language in use
You can go and play football when your work ______．
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九年级·英语·选择题Unit 3 Language in use
Stone can be ______ building houses．
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九年级·英语·选择题Unit 3 Language in use
I think Edison is one of the greatest ______．
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九年级·英语·选择题Unit 3 Language in use
The air conditioning is ______ Qingdao．
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九年级·英语·选择题Unit 3 Language in use
This type of MP4 is my favourite，but I can't ______ it．
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九年级·英语·句型转换Unit 3 Language in use
Ⅰ、句型转换 【 1 】 We heat and cook with coal ．（改为同义句） We ______ coal ______ heat and cook ． 【 2 】 We will fill the hole with water and earth ．（改为被动语态） The hole ______ ______ ______ with water and earth by us ． 【 3 】 Music wil
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九年级·英语·单词拼写/单词释义Unit 3 Language in use
choose， call， bad， between， something， whether， hard， reply， spend， new In the past I didn't like my mum． She was always working． She didn't (1) much time with me． One month ago I took part in a three-day self-help progr
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九年级·英语·句子翻译Unit 3 Language in use
再见到你我很高兴． （be pleased to do） ______
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九年级·英语·阅读理解Unit 2 Will books be replaced by the Internet?
How old are you？Have you created anything useful？Do you know Kelvin Doe？Let me tell you something about him． Kelvin Doe is an African boy．Though he is very clever，his family is so poor that he can't go to school．When mos
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九年级·英语·选择题Unit 2 Will books be replaced by the Internet?
Little Jerry gets up early______he can get there on time．
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九年级·英语·选择题Unit 2 Will books be replaced by the Internet?
Please compare this book______that one．And find out the differences between them．
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九年级·英语·选择题Unit 2 Will books be replaced by the Internet?
—The Tshirt feels very comfortable．What's it made ______？ —Silk，I think．
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九年级·英语·选择题Unit 2 Will books be replaced by the Internet?
I will go home to watch TV rather than______this film．
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九年级·英语·选择题Unit 2 Will books be replaced by the Internet?
Many foreigners prefer things that are made in China _____________.
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九年级·英语·完成句子Unit 2 Will books be replaced by the Internet?
Ⅰ．用适当的介词填空 【1】My father sometimes buys his breakfast ______ his way to work． 【2】Look at the poster ______ a photo ______ Yao Ming ______ the wall． 【3】You know fish can't live ______ water． 【4】Little Tom is learning to wr
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九年级·英语·填空题Unit 1 Will computers be used more than books in the future?
In a few years' time ， it will be possible to make things yourself with a 3dimensional 【 1 】 ． You download 3D designs （图案） online ， then push “print” ． Hours 【 2 】 ， a real object will come out 【 3 】 your printer ． All
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九年级·英语·填空题Unit 1 Will computers be used more than books in the future?
Ⅲ．用所给单词的适当形式填空 【1】The bridge ____________（finish）in three weeks． 【2】You can go out if your homework ____________（do）． 【3】This is one of the things that ____________（see）that day． 【4】This is the only one of the things tha
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九年级·英语·选择题Unit 1 Will computers be used more than books in the future?
—Can you ______ this novel ______ me? —You'd better ______ one ______ the library．
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