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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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Writing (作文) Write a passage of at least 60 words on the topic "My Opinion on Raising Pets" (以“养宠物之我见”为题,写一篇不少于 60 个词的短文。) Use the following points as a guide. (短文须包含下列要点。) * Do you have pets at home? * Do you like raisi
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An Englishman was showing a foreign visitor around London. "What's this strange building?" asked the visitor. "This is the Tower of London." "I see. How long did it take you to build it?" "About 500 years." "In my countr
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Spring Festival has just passed. were you excited about getting lucky money and watching the Spring Festival Gala ( 春节联欢晚会 ) on TV? Spring Festival is a happy time. But do you know how we celebrate it? Whether Chinese or
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Do you believe there are aliens? We’ll make a phone call and you will know. A group of Americans can help. They made a device( 装置 ) to “talk” to aliens. If you want to talk to an alien, you only need to visit www. TalkTo
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根据所给中英文提示语,以Introduction to A Robot 为题写一篇60字以上的短文。 注意语句扩展, 意思连贯。 短文开头已经给出。 提示: 1.机器人可以分四个部分: sensing(感觉), movement(运转), energy(能量), intelligence(智能). 2.简单介绍这四个部分的情况. Introduction to A Robot A robot is a system that conta
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【1】昨天早上我起床很早,为了考试不迟到. Yesterday morning I got up early _______ ______ _____ _____ be late _____ the exam. 【2】我不知道这台电脑是何时感染到病毒的. I don’t know when this computer ______ _____ _____ . 【3】顺便问一下,谁第一个拥有机器人。 By _______ ________
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Do You Go To Sleep In Class? The “Acronym”, our student newspaper, reports that most students go to sleep at 1: 30 a. m. Even if that’s an exaggeration( 夸张 ), it’s too close to the truth. Scientists say teenagers should
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Dear Seth, You are only three years old, and at this point in your life you are not able to understand this letter. But some day when you _______ , I hope you will find something _______ in what I am going to share with
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If you wish to become a better reader, here are four important things to remember about reading rate : ● Knowing why you are reading or what you are reading to find out will often help you to know whether to read fast or
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A couple of weeks ago, my friend offered to sell some of our things for us. I thought it was a good chance to clean my 7-year-old son’s room and _____ some toys that were no longer suitable for him to play with. We _____
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It feels like every time my mother and I start to have a conversation, it turns into an argument. We talk about something as simple as dinner plans and suddenly, my mother will push the conversation into World War III. S
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Soon it would be the holidays, but before that, there were year exams. All the students had been working hard for some time, going over their lessons for the exams. If they didn’t _____ , they would have to retake them i
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Jubilee Swimming Club Rules •All swimmers must take a shower before they go into the pool. •Diving is only allowed from the diving board. •Running and playing near the pool is not allowed. •Club members may bring guests
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Traffic rules are made to keep order on the road. They also help to keep people (1) . The pedestrian(行人)has as many rules to (2) as the driver of a car. You should walk at the side-walk or at the edge of the road. (3) lo
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Since you choose it as your job, you're supposed to make effort to do it well.
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What do you think is the most common illness? Do you get ill sometimes? We are lucky to live now because there are lots of medicines to make people better. The most common illness in the world is the cold. It often begin
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A gift is necessary when one is invited to visit friends in China. Remember that usually Chinese people will not open the _____ in front of the person who gives it. To show the respect, it may be _____ to explain what th
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they, happily, are, although, over, discussing, the, is, class ________________________________________________________________________ .
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写作 你知道什么是健康的生活方式吗? 请以What is a healthy lifestyle为题, 根据下列提示写一篇不少于80词的英文短文。可适当发挥。 提示: ①充足的睡眠; ②积极的锻炼; ③合理的饮食。
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语法填空题 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, 在空格处填入一个适当的 词或使用括号中词语的正确形式填空。 About the importance of health, nobody can explain (well) than your doctor. They are the people who really know the importance of keeping fit and healthy.
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