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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·阅读理解直接理解,科普知识与现代技术,逻辑推理,事物说明、介绍,文章出处,指代猜测
Antarctica (南极洲） is at the southern end of the Earth. It is the coldest, driest and windiest place on our planet. What would it be like to live and work there? On Oct 15, 50 Chinese researchers took a ship named Xuelong
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九年级·英语·阅读理解直接理解,段落大意,数字计算,历史与社会,事物说明、介绍
The Chinese kite is a symbol of the Chinese handicraft (手工艺品）. Flying a kite is a very popular activity in China. In spring, large numbers of people gather in the squares or parks and fly beautiful kites there. A philoso
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九年级·英语·填空题名词辨析,代词辨析,个人故事,动词辨析,个人情况,副词辨析,形容词词义辨析,介词辨析
When Helen Keller was 19 months old, an illness left her deaf, dump (哑巴）and blind. At the age of five, she began to realize that she was different from other people. Her family members could (1) with their mouths, but sh
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九年级·英语·选择题谚语和习语
Just as the saying goes, "______". If you keep practising speaking English, you'll be better at it.
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九年级·英语·选择题时态辨析,宾语从句的语序,宾语从句中的主现从任,一般过去时表示过去发生的动作或存在的状态
—Sandy, do you still remember ______ the Palace Museum? —Yes. About five years ago.
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九年级·英语·选择题what引导的感叹句,不定冠词
______ useful dictionary it is! I want to buy one.
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九年级·英语·选择题时态辨析,since加过去的时间点，主句用现在完成时,非第三人称单数作主语时的主谓一致
—Do you know Sunshine Town very well, Mr Chen? —Sure. I ______ here since I was born.
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九年级·英语·选择题动词短语辨析
—Dad, would you please ______ a brighter light in my bedroom? —Certainly.
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九年级·英语·选择题名词辨析,修饰可数名词复数的词,可数名词的单复数
Mr Liu is a wise man, and he often gives us a few ______.
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九年级·英语·选择题疑问副词how+形容词/副词
—Excuse me, ______ is Xuefeng Park from the hotel? —It's about twenty minutes by bus.
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九年级·英语·选择题have/has/had to的用法
My bike was broken yesterday, so I ______ walk home.
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九年级·英语·选择题定语从句的先行词,关系代词who引导限制性定语从句
—Do you know the boy ______ is talking to Mr Zhang? —Yes. He is our monitor.
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九年级·英语·选择题固定短语,介词辨析
In the end, Mr Song came up ______ a good method to solve the problem.
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九年级·英语·选择题the+形容词最高级+名词+比较范围,形容词词义辨析
As we all know, the Changjiang River is the____river in our country.
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九年级·英语·选择题代词辨析,人称代词的主格
—Where are Lily and Lucy from? —______ are from the USA.
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九年级·英语·选择题there/here be 句型中的主谓一致,there be句型
—Mum, I'm hungry. —There ______ some biscuits on the table. Enjoy them, please.
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九年级·英语·选择题固定短语,零冠词
Tom likes playing____football very much.
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九年级·英语·书面表达仁爱版》九年级上册》Unit 4 Amazing Science》2. I'm excited about the things that will be discovered in the future.###外研版》九年级下册》Module 8 My future life》Unit 2 I know that you will be better at maths.###人教新目标Go For It!》九年级全册》Unit 11 Sad m
假如你是李华，即将进入高中学习，请你写一封电子邮件给英国的笔友 Linda ，谈谈你对高中生活的向往和担忧，并请她给出建议。 参考词汇： Expectation( 向往 ) meet new classmates and teachers make decisions by myself choose favorite subjects … Worry have no time after-school activities fall
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九年级·英语·其他人教新目标Go For It!》九年级全册》Unit 11 Sad movies make me cry.》Section B###
Dear Mr. Friend, My name is Simon, and I am in Grade Nine. 1. 我非常喜欢足球。 I love watching football, reading about football, and, of course, playing football. However, my love of football has become the cause of my problem.
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九年级·英语·任务型阅读仁爱版》九年级上册》Unit 1 The Changing World》1. Our country has developed rapidly.###外研版》九年级上册》Module 2 Public holidays》 Unit 2 We have celebrated the festival since the first pioneers arrived in America.###人教新目标Go For It!》九年级全册》Unit
In China, the 12 th month of the lunar calendar( 阴历 ) is called Layue. The month is full of interesting festivals and customs. Laba Festival, which is on the 8th day of Layue, is the first festival in this month. From th
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