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#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·连词成句Unit 7 Work for Peace

it, true, sounds, not, perfect, but ________________________________________________________________________ .

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九年级·英语·连词成句Unit 7 Work for Peace

we, both, are, friendly and outgoing ________________________________________________________________________ .

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九年级·英语·任务型阅读Unit 7 Work for Peace

Many children today live in unsafe places. They may live where wars have been fought or where there is a lot of crime. Play for Peace is an organization formed to help children in unsafe places. It does so by bringing ki

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九年级·英语·填空题Unit 7 Work for Peace

Different countries have different table manners. It's very 【 1 】 (interest)! Here are some examples. In some countries, it's polite to 【 2 】 guests with enough food, while in other countries, people don't do this 【 3 】

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九年级·英语·填空题Unit 7 Work for Peace

(2020 原创 )I don't know w ________ they will come or not. If I know, I will tell you.

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九年级·英语·单词拼写Unit 7 Work for Peace

(2020 原创 )Please keep s ________ when we have a meeting. We can't hear what other people say.

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八年级·英语·填空题Section B

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。 People began to make robots about a few 【 1 】 (hundred)years ago.In the past , some of the early ones 【 2 】 (look)like animals or humans.However , they couldn't 【 3

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八年级·英语·填空题Section B

用方框中所给短语的适当形式填空 fall down;agree with;look like; over and over again;hundreds of 【1】The little girl ______ from the bike and hurt herself. 【2】People may get bored if they do simple work _____. 【3】I guess that he may be Au

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八年级·英语·填空题Section B

用括号中所给单词的适当形式填空 【1】His hope is to be a _____ (science). 【2】There are four ______(factory)around our school. 【3】Nothing in the world is ______(possible)if you set your mind to do it. 【4】It is difficult for me ______(do)th

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八年级·英语·单词拼写Section B

根据句意及首字母或汉语提示完成单词 【1】Jim will _____(很可能)go to France on vacation this year. 【2】We often get together______(在……期间)the Spring Festival. 【3】My parents will take a _________(假期)in Lanzhou. 【4】The moon is not a p_________,but

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八年级·英语·阅读理解Section B

A kind of little cars may some day take the place of today’s cars. If everyone drives such cars in the future, there will be less pollution in the air. There will also be more space for parking cars in cities and the str

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八年级·英语·填空题Section B

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 will our life be like in the future ? We won't use 【 1 】 ( 纸 )to write on.We can study on computers.And there will be fewer cars and less 【 2 】 ( 污染 ) . Everyone will play a

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八年级·英语·填空题Section B

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。 The future is coming ! All over the world there are many new 【 1 】 (idea)for new places to live and work in.Some of 【 2 】 (they)will be in the sea ! They will be ve

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八年级·英语·填空题Section B

用方框中所给短语的适当形式填空 in the near future ; fall down ; hundreds of ; look like ; look for 【 1 】 His pencil­box is lost.He's _____ i t here and there now. 【 2 】 I believe that there will be a robot in your home _____ . 【 3 】 Th

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七年级上·英语·阅读理解Section A

阅读理解 Li Ting is a Chinese girl. She is fourteen years old, and she is in No.8 Middle School. From (从....始) Monday to Thursday(周四), she has seven classes a day. On Friday, she only has six classes. Her favorite subject is

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七年级上·英语·填空题Section A

完形填空 My dear friends, let me tell you something about my daily timetable (时间表). I (1) at 7:00 and I go to (2) at 7:30. I have science at (3) and then I have math at 10:00. (4) is my favorite subject. I like math because

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七年级上·英语·补全对话Section A

在横线上填写适当的句子,补全对话。 A: Hi. Linda! Our summer vacation (暑假) is next week. B: I want to have a trip.A: B: I want to go to Beijing.A: B: Because I think Beijing is a city with many historic landmarks (拥有许多历史性地标的城市).A: B: I wa

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七年级上·英语·翻译Section A

他最喜欢的颜色是什么? his color?

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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?

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七年级上·英语·翻译Section A

他总是和我们—起做游戏。 He always us.

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