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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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七年级·英语·阅读理解主旨大意,词句猜测,细节理解,人物传纪/故事阅读类
It is New Year’s Day today and the weather is very cold. After visiting a friend in the hospital, I come into a small restaurant to have lunch because I am cold and hungry. When I am having lunch, I find an old woman buy
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七年级·英语·阅读理解细节理解,广告布告类,推理判断
Visit Swansea Zoo Come and see the Indian elephants and the new tigers from America. The bears are waiting to meet you, and t he monkeys from China are waiting to throw things at you. The lovely dogs from Australia are w
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七年级·英语·填空题词义辨析,人物传纪/故事阅读类,逻辑推理,固定搭配
阅读下面短文，掌握大意，然后从A、B、C、D四个选项中选出一个最佳选项。 Jack lives in a small town in England. He always stays in (1) during his holiday, but this year he thinks, “I (2) go to other countries. All of my friends go to China, and they like (
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七年级·英语·选择题疑问句
--- _____ milk would you like, Bob? --- Well, one cup is OK.
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七年级·英语·选择题动词短语辨析
--- What are you doing here? --- I’m________ my lessons and I want to get a better score .
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七年级·英语·选择题一般将来时
--- Tom, can you play basketball with me next Sunday? --- Sorry, I _____ my grandparents with my dad.
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七年级·英语·选择题名词辨析
--The sweater is not the right________ for me. It’s too small. --Well, let me get you a big one.
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七年级·英语·选择题一般过去时
Last night I went to see Tom but he _____ at home.
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七年级·英语·选择题物主代词
— Is this your notebook? — No, it isn’t. Ask Lucy, I think it’s________.
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七年级·英语·选择题形容词辨析
--We will have a lot of robots in the future. --Yes. I think people will only do _____ jobs because robots will help do heavy jobs.
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七年级·英语·选择题介词和介词短语
---What do you usually do ________Sunday morning? ---I usually go swimming.
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七年级·英语·选择题零冠词
--- Excuse me , how can I get to the Big Ben? --- It’s near here. You can go there by________ bike
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八年级·英语·补充句子反身代词,汉译英
My little sister isn’t old enough to look after_____(她).
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八年级·英语·单词拼写可数名词及其单复数
There are not enough drinks and_______(零食) here. Could you buy some?
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八年级·英语·补充句子不可数名词,汉译英
Everyone should know the______(重要) of studying hard.
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八年级·英语·单词拼写介词和介词短语
Most of the people are_____(反对) building a zoo in the town.
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八年级·英语·补充句子可数名词及其单复数,汉译英
American usually eat with folks and____(刀).
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八年级·英语·阅读理解细节理解,推理判断,科普环保类
A篇为判断正（A）误( B) A A kind of little cars may be seen in the streets in the future .People will like this kind of small cars better than the big ones. The car is as small as a bike but it can carry two people in it .Everybo
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八年级·英语·选择题动词不定式,动名词
I have no time ___ you with your math. I’m busy ____ my homework.
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八年级·英语·选择题过去进行时
What ____ when you got to the park?
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