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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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八年级·英语·选择题主从复合句
I can’t connect my computer to the Internet. There must be _______wrong with it.
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八年级·英语·选择题主从复合句
The earth was so seriously polluted ________ we must take action to save the planet.
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八年级·英语·选择题一般疑问句
—Do you often go to the movies? —No,I\’m too busy.I have free time.（ ）
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八年级下·英语·choice单项选择
—What are you packing so many books for, Grandma? —I’ll ________ to the kids in West China. A．gave them up B．give them away C．give them off D．give them in
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八年级下·英语·choice单项选择
Sally volunteered________ a veterinarian (兽医) to help the sick animals in the zoo. A．be B．being C．to be D．to being
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八年级下·英语·choice单项选择
—Can you tell the differences between these two pictures? —Differences? Oh, no. They look quite ______. A．different B．similar C．strange D．interesting
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八年级下·英语·choice单项选择
The little girl is _________. She can’t hear what you said at all. A．sick B．blind C．deaf D．sad
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八年级下·英语·choice单项选择
To push up sale, many international companies plan to ________ online shops. A．set up B．put up C．take up D．wake up
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八年级下·英语·choice单项选择
—We should try our best to help people in need. —________.To help others is to help ourselves. A．You’re welcome B．You’re right C．Lucky you D．It’s up to you
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八年级下·英语·choice单项选择
—Who do you think Bob _________, his father or his mother? —His mother, for they are both cheerful in nature. A．looks after B．looks for C．takes after D．takes away
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八年级下·英语·choice单项选择
—Can you ________ how difficult it is to drink water in space? —Of course I can. A．hope B．imagine C．expect D．find
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八年级下·英语·choice单项选择
It’s your turn to ________ the bedroom,Wang Fang. A．look up B．get up C．clean up D．turn up
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八年级下·英语·choice单项选择
-I have a sore throat. What I do? -I think you drink some hot tea with honey. A．should; should B．should; shouldn’t C．shouldn't; shouldn’t D．shouldn't; should
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八年级下·英语·choice单项选择
There are lots of passengers and the bus is too crowded. The bus driver expects Some passengers the bus. A．get off B．to get off C．cut off D．to cut off
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八年级下·英语·choice单项选择
---She is too busy to help us finish the work ---Let’s do it______ A．herself B．myself C．itself D．ourselves
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八年级下·英语·choice单项选择
Tom fell off his bike, and his hand was hurt . A．quietly B．carefully C．slowly D．badly
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八年级下·英语·choice单项选择
There was a a car accident on Xin Hua Road yesterday._____, nobody was hurt.. A．Lucky B．Luckily C．Unlucky D．Unluckily
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八年级下·英语·choice单项选择
Blue whales(鲸) are . We should try to save them. A．in time B．in public C．in danger D．in need
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八年级·英语·选择题谓语
Can you sleep well at night?（ ）
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八年级·英语·选择题谓语
-How many students are there in your class? -______ the students _____over 40．（ ）
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