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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·单词拼写Unit 8 Save Our World
(2020 原创 ) When you go into a friend's home, it is p ________ to greet other people in the house.
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八年级·英语·填空题Unit 8 Save Our World
(2020 原创 ) How can people solve the ________ (pollute) problems?
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八年级下·英语·阅读理解Unit 8 Life in the future
根据材料内容，选择正确答案。 Imagine the situation. You are driving alone in a desert or on a mountain. You have no idea where you are. You passed the last house two hours ago. Then your car breaks down. It is night and it is cold. Yo
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八年级下·英语·填空题Unit 8 Life in the future
完形填空 Life in the year 3044 is very different （1） life in the 21st century. We still do many of the things you do, but we do them （2） For example, we now have e-friends to help us and company us. An e-friend is a machine
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八年级下·英语·填空题Unit 8 Life in the future
根据短文理解，从给出的A、B、C三个选项中选择最佳答案填空。 My feeling about science have really changed. I never used to （1） science, but last year, I changed schools, and the science （2） at my new school were excellent. The science facilities are
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八年级下·英语·翻译Unit 8 Life in the future
昨天晚上九点她在做什么? she at nine o'clock last night?
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八年级下·英语·句型转换Unit 8 Life in the future
She was not staying at home at ten last Saturday. (改为肯定句) at ten last Saturday.
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八年级下·英语·句型转换Unit 8 Life in the future
We were singing in the park at nine o'clock last Sunday. (改为一般疑问句，并作否定回答) — in the park at nine o'clock last Sunday?—No, .
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八年级下·英语·句型转换Unit 8 Life in the future
We can connect the keyboard to the computer. （改为被动语态） The keyboard can to the computer.
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八年级下·英语·句型转换Unit 8 Life in the future
I was doing my homework at 7 p. m. yesterday. (改为否定句) I my homework at 7 p. m. yesterday.
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八年级·英语·填空题Unit 7 The unknown world
I can do it______（ well ） if you give a chance．
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八年级·英语·填空题Unit 7 The unknown world
Don't make any______（ noisy ）． Dad is sleeping．
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八年级·英语·填空题Unit 7 The unknown world
The girl______（ stand ） next to the door is my sister．
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八年级·英语·填空题Unit 7 The unknown world
What do you know about this______（ know ） plant？
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八年级·英语·填空题Unit 7 The unknown world
Kate asked him to eat some pizza， but he refused______（ eat ） it．
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八年级·英语·填空题Unit 7 The unknown world
I feel______（ terrible ）sorry because I hurt you．
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八年级·英语·完成句子Unit 7 The unknown world
Please keep______ （quiet/quietly）in the library．
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八年级·英语·补全对话Unit 7 The unknown world
A．We went for a drive． B．How about your day off？ C．It rained all the time． D．I took photos with him and I got his autograph． E．What happened？ F．What can I do for you？ G．Is it a good chance？ A： How was your day off， Tina？
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八年级下·英语·填空题Unit 6 Pets
Of all the students, Mary did (careful) in the final exam.
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八年级下·英语·填空题Unit 6 Pets
Grandpa is sleeping. Please speak (quiet).
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