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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·单词拼写Unit 3 Language in use
单词拼写 【 1 】 Look ！ The students are carrying out an ______ （实验） in chemistry now ． 【 2 】 —What subjects do you like? —I like both ______ （物理） and math ． 【 3 】 The car runs at a ______ （速度） of 100 kilometers an hour ． 【 4
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七年级·英语·填空题Lesson 10 My Interests
Michael likes playing soccer after class. And he always plays it alone（独自地）. Today Miss Smith (1) Michael playing on the playground. "Hi, Michael. (2) sport do you like？" Miss Smith asks. "Soccer, of course. I have (3) s
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七年级·英语·句型转换Lesson 10 My Interests
The little boy likes playing table tennis .（对画线部分提问） ______the little boy______？
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七年级·英语·句型转换Lesson 10 My Interests
The girl doesn′t like listening to pop music.（改为肯定句） The girl______listening to pop music.
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七年级·英语·句型转换Lesson 10 My Interests
Ben often plays tennis at 4：00 . （对画线部分提问） ______does Ben often play tennis？
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七年级·英语·句型转换Lesson 10 My Interests
Betty joins four clubs.（对画线部分提问） ______clubs does Betty join？
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七年级·英语·句型转换Lesson 10 My Interests
She goes to the Dancing Club every Friday afternoon.（对画线部分提问） ______she______every Friday afternoon？
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七年级·英语·单词拼写/单词释义Lesson 10 My Interests
"我能加入哪个俱乐部？""我不确定。" -______ club can I______？ -I′m______.
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七年级·英语·单词拼写/单词释义Lesson 10 My Interests
我在足球俱乐部。 I am______ the Football Club.
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九年级·英语·选择题Unit 2 If you ever go to London, make sure you visit the Science Museum.
To invent a new kind of electric light, Thomas Edison did lots of ____.
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九年级·英语·选择题Unit 2 If you ever go to London, make sure you visit the Science Museum.
The sign“______”is often found in a reading room or a library．
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九年级·英语·选择题Unit 2 If you ever go to London, make sure you visit the Science Museum.
He isn't a teacher，my father isn't a teacher， ______．
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九年级·英语·选择题Unit 2 If you ever go to London, make sure you visit the Science Museum.
Parents always compare their children ______ others'．
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九年级·英语·选择题Unit 2 If you ever go to London, make sure you visit the Science Museum.
This book is ______for a sixyearold child to read．
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九年级·英语·选择题Unit 2 If you ever go to London, make sure you visit the Science Museum.
It was a small town then，______ what it is now．
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九年级·英语·选择题Unit 2 If you ever go to London, make sure you visit the Science Museum.
Scientists sometimes ______ the human brain ______ a computer．
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九年级·英语·选择题Unit 2 If you ever go to London, make sure you visit the Science Museum.
Water is ______ air．We can't live without either of them．
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九年级·英语·选择题Unit 1 Don’t cross that rope!
— How long can I ________ the book? —For two weeks.
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九年级·英语·选择题Unit 1 Don’t cross that rope!
I can hardly hear what it is saying on TV. Would you please_______.
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九年级·英语·选择题Unit 1 Don’t cross that rope!
Look at the tail ______ that monkey！It's very funny．
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