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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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八年级·英语·句型转换Unit 2 Water
Rewrite the following sentences as required ( 根据所给要求，改写下列句子。每空格限填一词）： 【 1 】 Few students went to the cinema yesterday. ( 改为反意疑问句） Few students went to the cinema yesterday, ______ ________ ? 【 2 】 All of the boys in my c
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八年级·英语·填空题Unit 2 Water
Complete the sentences with the given words in their proper forms (用括号中所给单词的适当形式完成下列句子）： 【1】Grace gave the room a thorough_____this morning, (clean) 【2】Bob is good at_____. He often makes more money than others, (busy) 【
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八年级·英语·填空题Unit 2 Water
One day at Bluesea Middle School in Hong Kong, about 450 students and teachers went without water at lunchtime. They were in a meeting to learn about saving water. The school also collected about HK $ 10,000. The money w
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八年级·英语·填空题Unit 2 Water
A. undrinkable B. survive C. resources D. breathe E. oxygen People can imagine life without water. Without it, the earth we live on would be a dead one. There would be no trees, no crops, no animals and no people. So wat
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八年级·英语·选择题Unit 2 Water
Since there are not_______apples for all of us, I’ll go to the supermarket to buy______
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七年级·英语·阅读理解Unit 8 collecting things
Many parents today worry about their children's diets. Then what is a healthy diet for children? Miss Jones from Happy Children Hospital gives the following advice: ◆Children shouldn't eat food with too much salt, becaus
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七年级·英语·阅读理解Unit 8 collecting things
A young man and an old man were waiting for a train at a station. They sat next to each other. "What's in your bag?” as ked the young man. “Gold,” answered the old man,“nothing but gold." The young man could hardly belie
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七年级·英语·填空题Unit 8 collecting things
Last month we bought our two- year-old daughter a little ________________ There were few children of her age where we ________________ and we thought a dog would make her less ________________ . We were right. They playe
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九年级·英语·填空题Unit 8 Detective stories
It does not always come easy to discover oneself. From a young age, I had already got a strong sense of who I would like to become. ______ an accident made me redefine(重审) myself. To me, skating was the most important. T
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九年级·英语·完成句子Unit 8 Detective stories
完成句子 按所给的汉语，用英语完成下列句子。 【1】这个菜为什么这么咸，是不是厨师做菜时误把盐当成糖了？ Why is this dish so salty? Has the cook ___________________________ sugar while cooking？ 【2】因为身体原因，那名歌手被迫取消了下个月的演唱会。 The singer ______________________________ next mon
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八年级·英语·选择题Unit 1 Trees
--____________? --I’d like to see that red dress.
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八年级·英语·选择题Unit 1 Trees
The boss made my mother __________ twelve hours a day in old days.
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八年级·英语·选择题Unit 1 Trees
Look! Our daughter __________ her own room.
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八年级·英语·选择题Unit 1 Trees
Foreigners in Beijing learn Chinese language __________ its culture.
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八年级·英语·选择题Unit 1 Trees
Peter looked __________. He was looking __________ at his friends.
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八年级·英语·选择题Unit 1 Trees
The government warned the factories _____the water again.
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八年级·英语·选择题Unit 1 Trees
The train __________ for Beijing soon. The passengers who are still on the platform should get on the train at once.
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八年级·英语·选择题Unit 1 Trees
Trees make our streets__________ and__________.
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七年级·英语·阅读理解Unit 7 school clubs
Here are some after-school activities. You can choose any one or ones you like to make your school life more colourful. Join us, please. Name of the club Time Activity Reading Club Monday (3: 00 p. m—5: 00 p. m. Read new
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七年级·英语·填空题Unit 7 school clubs
In our school, there is an English club, a Music Club, a Football Club, a Tennis Club and many other clubs. The ______ Club is the most popular (最受欢迎的) one. And I am in the club because tennis is my ______ sport. There a
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