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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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七年级上·英语·翻译Section A
我认为数学非常难。 I math is very .
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七年级上·英语·翻译Section A
你什么时候上英语课？ you have English classes?
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九年级·英语·连词成句Unit 8 Culture Shapes Us
he, went out, still, was, raining, although, it _________________________________________________________ .
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九年级·英语·连词成句Unit 8 Culture Shapes Us
though, he, positive, is, blind, is, he _________________________________________________________ .
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九年级·英语·连词成句Unit 8 Culture Shapes Us
I, go, am, but, busy, would love to, I _________________________________________________________ .
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九年级·英语·填空题Unit 8 Culture Shapes Us
I'm Henry, from America. This is my 【 1 】 (one) time in Japan. One day some new 【 2 】 (friend) invited me to eat out. At first, I was quite happy and learned 【 3 】 use chopsticks with them, but later problems started. Th
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九年级·英语·任务型阅读Unit 8 Culture Shapes Us
无国界医生组织 In 1971 there was a war in a part of Nigeria called Biafra, in western Africa. People were dying, children were hungry and there was a lot of disease. There were thousands of people who needed medical help—but th
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九年级·英语·阅读理解Unit 8 Culture Shapes Us
纪念英雄的方式 Countries, cities and people all have their own heroes. There are different kinds of heroes: politicians, soldiers, film stars, sport stars and musicians. And there are many different ways of remembering them, to
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八年级·英语·填空题Section A
Life in space is different _____ life on earth. How do astronauts live, work and play there? It is very interesting. Space food _____ more like the food we eat on earth. In the past astronauts could _____ only small piec
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八年级·英语·填空题Section A
阅读下面短文, 按照句子结构的语法性和上下文连贯的要求, 在空白处填入一个适当的词或使用括号中词语的正确形式填空。 My uncle Sid is a famous scientist. He likes to make lots of _____(prediction)about the future. He says that in 100 years some things will be better _____ now. Fo
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八年级·英语·填空题Section A
用方框中所给单词或短语的适当形式填空 build; in great danger; play a part; have to; peaceful 【1】All of us should _________ in planting trees. 【2】Elephants are _________.We should do something for them. 【3】Most people in the world love ____
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八年级·英语·填空题Section A
用few, fewer, little, less或more填空, 每词限用一次 【1】Mr. Jackson is very serious, so _________people want to make friends with him. 【2】Tom isn't happy because he has _________ time for reading. 【3】Jack has _________pens than his
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八年级·英语·单词拼写Section A
根据句意及汉语提示完成单词 【1】—What do you want to be in the _________ (未来), Cathy? —I want to be a teacher. 【2】The teacher said that the moon goes around the _________ (地球). 【3】We plan to_________ (种植)more trees this year to make th
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八年级·英语·阅读理解Section A
Penguin Robot Toy Penbo Blue •Price: $59 •Penbo Blue is a real robot for girls. •Penbo Blue loves to talk and sing. •You can play 5 kinds of games with Penbo Blue. •There are four different colors, purple, green, pink an
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八年级·英语·填空题Section A
There are many kinds of pollution around us, _____ air pollution, soil pollution, noise pollution and light pollution. They are bad _____ our health in many ways. Burning gas, oil and coal creates _____ pollution. It can
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八年级·英语·填空题Section A
根据短文内容和括号内所给汉语意思, 写出空白处各单词的正确形式(每空一词)。 What do you think life will be like in the future? I don't think we will have to do the housework because _____(机器人)can help us a lot._____(那么)we will spend more time _____(阅读)books
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七年级·英语·句型转换Unit 3 Language in use.
Kate has some books in her bag.（改为否定句） ______
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七年级·英语·句型转换Unit 3 Language in use.
This is a ruler. （改为复数句） ______ rulers.
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七年级·英语·单词拼写/单词释义Unit 3 Language in use.
用方框中所给单词的适当形式填空，每词限用一次。 two,fresh,above,chalk,compare Anna can draw beautiful pictures on the blackboard with ______ . The plane is flying ______ the clouds so high,just like a big bird in the sky. Some people like takin
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七年级·英语·单词拼写/单词释义Unit 3 Language in use.
chalk lose ride friend opposite You will find a KFC ______ the bank. Sam often ______ things when he is in a hurry. In the future,teachers won't use ______ any more. Our class monitor is ______ to everyone and we all lik
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