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高频错题
#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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【1】Would you like to help me ________________(带来) it in? 【2】We always keep our classroom clean and ________________(整洁). 【3】Peter has a ________________(模型) plane. 【4】--- Are those books ________________ (我们的)? --- No, t
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【1】You should t________________ up the room before your friends arrive. 【2】Remember to b________________ a book to school tomorrow. 【3】I hope e________________ goes well with you. 【4】He u________________ makes a plan bef
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Jason, a 16-year-old boy, is PE monitor in our class. He is from Africa. He often (1) basketball with other boys after school. When we can′t (2) him, he must be in the playground. He is the best basketball player and run
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He can speak five languages.(对画线部分提问) ______languages______ he speak?
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Can you help me to learn English?(改为同义句) Can you help______English?
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They can't sing. They can't dance.(合并为一句) They______ sing______ dance.
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He can ride a horse . (对画线部分提问) ______he______?
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I can sing. (改为一般疑问句并作否定回答) -______ you sing? -No, I______.
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You can′t smoke(抽烟) here.(改为祈使句) ______here.
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他在10岁就拥有自己的实验室。 He had______lab at ten years old.
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We have two new students in our class. They′re Cindy and Kate. They look the same. But they aren′t (1) .Cindy is American. She is thirteen. She (2) red and blue. She′s often in blue trousers. She often plays tennis (3) .
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你最喜欢的课外活动是什么? What′s______after-school activity?
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请问,你们有几门学科? ______ me,______subjects do you have?
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你会说多少种语言? ______can you speak?
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我经常骑自行车上学。 I often______to school. I often go to school______.
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我会下国际象棋。 I______chess.
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我的一个朋友来自英格兰。 A friend of______from England.
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你想参加哪个俱乐部? ______do you want to______?
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Michael likes playing soccer after class. And he always plays it alone(独自地). Today Miss Smith (1) Michael playing on the playground. "Hi, Michael. (2) sport do you like?" Miss Smith asks. "Soccer, of course. I have (3) s
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The little boy likes playing table tennis .(对画线部分提问) ______the little boy______?
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