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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 8 Surprise endings
-Ali reached into his pocket and drew a piece of paper from it. -What was written on it？（ ）
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九年级·英语·选择题Unit 8 Surprise endings
- What can I buy for her as a birthday present ？ -How about a storybook？ She likes reading storybooks very much. （ ）
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九年级·英语·单词拼写/单词释义Unit 7 The Adventures of Tom Sawyer
学生们每天放学后不停地练习着唱歌。 Every day,students__________________ singing songs after school.
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九年级·英语·单词拼写/单词释义Unit 7 The Adventures of Tom Sawyer
她骗我借给她一千美元。 She______ me____________ her $1，000.
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九年级·英语·单词拼写/单词释义Unit 7 The Adventures of Tom Sawyer
过了一会儿，他开始痛苦地讲起了他的故事。 __________________，he began to tell his story______.
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九年级·英语·单词拼写/单词释义Unit 7 The Adventures of Tom Sawyer
真可惜！他没有上完大学。 __________________! He did not finish college.
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九年级·英语·单词拼写/单词释义Unit 7 The Adventures of Tom Sawyer
像这样的机会并不是每天都有的. Opportunities like this do not____________every day.
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九年级·英语·单词拼写/单词释义Unit 7 The Adventures of Tom Sawyer
马丁默默地看我。 Martin looked at me____________.
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九年级·英语·单词拼写-单句Unit 7 The Adventures of Tom Sawyer
After a moment's s______ he went on speaking.
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九年级·英语·单词拼写-单句Unit 7 The Adventures of Tom Sawyer
My father is such a c______ man that he never makes any mistakes in his work.
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九年级·英语·选择题Unit 6 Healthy diet
- Having a trip every year is very usual for many people in our country. -Yes. People now pay much attention to the quality （质量） of their life.（ ）
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九年级·英语·选择题Unit 6 Healthy diet
-Why will you eat in that restaurant？ -Because it serves traditional Chinese food. We like it very much.（ ）
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九年级·英语·选择题Unit 6 Healthy diet
- How long do you work every day？ -___________， we work for eight hours a day.（ ）
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九年级·英语·选择题Unit 6 Healthy diet
- Every summer, many girls try to ___________ in order to wear beautiful clothes. -Yes. It seems that being thin is the most important thing for them in summer.（ ）
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九年级·英语·选择题Unit 6 Healthy diet
- I think it's ___________ for Chinese students to learn English. -I agree with you. English is important. （ ）
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九年级·英语·选择题Unit 6 Healthy diet
To ___________ something means to formally （正式地） write or say it, especially in a careful and clear way.（ ）
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九年级·英语·选择题Unit 6 Healthy diet
A ___________ is a report in the media in which someone gives his opinion of something such as a new book or film.（ ）
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九年级·英语·选择题Unit 6 Healthy diet
- How will you use the money you made by doing part-time jobs？ - I will use it to treat myself to some interesting books.（ ）
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九年级·英语·阅读理解Unit 5 Action
Elderly people may fight to sleep as well as they did during their youth because they start to lose part of the brain that helps them fall asleep at night, scientists believe. There seem to be two main difficulties for t
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九年级·英语·阅读理解Unit 5 Action
Recently, garbage sorting has been a popular topic. As one of the 46 Chinese cities chosen to require garbage sorting, Shenzhen recently took action to ask residents to throw away their garbage in designated places and t
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