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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 6 Caring for your health
In order to keep healthy, I have a ______ medical examination every year. A.narrow B.regular C.same
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九年级·英语·选择题Unit 6 Caring for your health
The famous violinist will hold a _______ in our city this Saturday. A.meeting B.competition C.concert
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九年级·英语·选择题Unit 6 Caring for your health
The airline had to_______ this flight because of the bad weather. A.cancel B.start C.agree
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九年级·英语·完成句子Unit 5 Sport
他们现在正在游泳． They______ now．
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九年级·英语·完成句子Unit 5 Sport
他们从下午3点就在这里了． They______ since 3 p．m．
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九年级·英语·完成句子Unit 5 Sport
有一天他正在看电视，一场足球比赛开始了． He______ one day______ a football match came on．
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九年级·英语·完成句子Unit 5 Sport
去年，我父母带我度过了一个非常特别的假期． Last year，my parents took me______．
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九年级·英语·单词拼写-单句Unit 5 Sport
They walked t______ the forest and came to a village．
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九年级·英语·阅读理解Unit 5 Sport
On 22nd January，2007，Dave Cornthwaite from the UK became the first person to skateboard across Australia． He made a new world record， by skating a total of 5，823 kilometers． Jack Smith， the previous （ 前任的） champion， had
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九年级·英语·阅读理解Unit 5 Sport
Jack Johnson is one of the most popular singer-songwriters in the world． Jack was born on May 18，1975 in Hawaii． Being the son of a famous surfer，Jack naturally has an interest in surfing． Most of his life lessons were l
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九年级·英语·选择题Unit 5 Sport
-I have trouble learning math this term． -You should pay more to your teacher's advice．（ ）
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九年级下·英语·阅读理解Unit 4 Natural disasters
根据短文内容，选择正确答案。 A serious earthquake can be a terrible experience, and it is easy to forget safety measures (措施) in disorder (混乱). Fortunately , most earthquake safety measures are common sense, but if you forget everythi
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九年级下·英语·阅读理解Unit 4 Natural disasters
根据短文内容，选择正确答案。 Different weather makes people feel different. It has an effect on health, intelligence（智力）and feelings. In August, it is very hot and wet in the southern part of the United Stated. People there have heart
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九年级下·英语·阅读理解Unit 4 Natural disasters
根据短文理解，完成下列各题。 Before the spring Festival, which is the most important festival in China, millions of passengers are struggling to make the once-a-year trip home. Because of a power failure caused by snow, more than 136
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九年级下·英语·填空题Unit 4 Natural disasters
完形填空 The earth is our home. We must take good care of it. Life today is easier than it was hundreds of years ago, but it has brought some new （1） . One of the biggest problem is pollution. We can see it, smell it, drink
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九年级下·英语·填空题Unit 4 Natural disasters
根据短文理解，从A、B、C三个选项中选择最佳答案填空。 I was flying to New York at night. Suddenly, a storm broke and the plane began to be tossed（颠簸）around. When I looked （1） the plane, I could see that nearly all the passengers were worried and
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九年级下·英语·填空题Unit 4 Natural disasters
根据短文理解，从A、B、C、D四个选项中选择最佳的一项填空。 Earthquake are common: thousands of them happen each day. But most are too weak to feel. During a （1） earthquake, there is often a great noise first. Then the earth （2） terribly and many ho
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九年级下·英语·翻译Unit 4 Natural disasters
根据汉语意思完成句子。（1）在晚上他通常闲坐着玩电脑游戏。In the evening, he usually playing computer games.（2）你应该多加注意你的发音。You should more your pronunciation.（3）我让孩子们保持安静，但是无人理睬。I asked the children to keep quiet, but this ears.（4）他们花了三天时间制作这个飞机模型。
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九年级下·英语·翻译Unit 4 Natural disasters
你可以暂时见一见与我谈话的那个男孩。 You may see the boy I talk to .
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九年级·英语·完成句子Unit 3 The environment
现在我有太多的空闲时间． I have______ free time now．
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