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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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你的房子昨晚怎么着火的。 How did your house ____________ last night?
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在那起事故中,一名男孩从树上掉了下来,伤了双腿。 In that accident ,a boy ____________ a tree and ______ his legs.
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风暴之后,洪水冲走了我的房子。 After the ______,the __________________ my house.
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My Geography teacher told us that the sun ______in the east.( )
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There is _______ water in the glass, but it’s _______ cold. You’d better not drink it.
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Listen! Did you hear the_______ shouts? The match must be exciting.
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— Lucy, isn’t the talk boring? —_________. You can learn a lot from it. A. I think so B. That’s right C. Yes, I agree D. No, not at all
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书面表达。 《同步英语周报》和动物保护协会正在联合招募观鸟协会会员,请你以陈泽的名义,根据下面的提示写一封申请加入观鸟协会的信。 提示: 1 、你是阳光中学 8 年级学生,喜欢观鸟,想成为观鸟协会的一名成员; 2 、你热爱大自然并理解保护野生动物的重要性,所以什么也不能阻止你加入该协会; 3 、可拨打电话 88833322 或发电子邮件至 chenze@163.com 联系你; 4 、你加入该协会后的感受和做法。 要求: 1 、短文应包
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【1】埃迪,你想住在野外吗? Would you like to ________________________ ,Eddie? 【2】请你不要吃它们,好吗? Could you please ________________________? 【3】它们随时可能成为餐桌上的菜。 They may ___________ on the table ____________ 【4】埃迪,请可怜可怜它们吧。 Please ________
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【1】We should thank her for her_______(kind). 【2】Will you accept our_______(invite)and join us? 【3】Wild animals need our_______(protect). 【4】Mr.Black didn’t go to work because of his_______(ill). 【5】Last Sunday morning,I
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【1】Would you like_______(go) shopping with me,Kangkang? 【2】Could you p;ease_______(tell)me how to get there? 【3】This dog is very clever and_______(funny). 【4】They may_______(go)there this afternoon. 【5】My brother likes p
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The elephant is the largest of all animals that live on land.An elephant's trunk(象鼻)is rather like an arm and a hand.It is used to pick up and pull things in its mouth.It is also used to pull up trees when the elephant w
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