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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|}=
精选练习题目
他经常带领新学生们参观他们的学校.______.
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从 B 栏选出与 A 栏正确匹配的句子。 A B 【 1 】 Where is the new park? A She is thirteen. 【 2 】 What’s in the tree? B It’s brown and grey. 【 3 】 Whose jeans are they? C Yes, there is. 【 4 】 What colour is your blouse? D She is my cousin.
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补全对话,每空只填一个单词。 A: 【 1 】 you know my sister? B: What 【 2 】 she look like? A: She 【 3 】 medium height. And she 【 4 】 short hair. B: 【 5 】 she thin? A: No, she isn’t. And she 【 6 】 glasses. B: 【 7 】 she have curly blond hai
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根据汉语提示,完成句子。 【 1 】 它是谁的玩具熊?是你的吗?不,是他的。 _________ _____ is it? Is it _____ ?No,it’s ______ _____ _______ . 【 2 】 看米莉 ! 她的短裙是黑白相间的。 ______ _____ Millie. ______ ______ _______ _______ and ______ . 【 3 】 不要把你的全家福贴在这儿。 ______
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句型转换。 【 1 】 The yellow kite is my twin brother’s. (划线提问) _______ the yellow kite? 【 2 】 Andy’s blue jeans are here . (改为强调句) _______ _______ Andy’s ______ ______ . 【 3 】 Whose sweater is this?( 同义句 ) ______ _______ _____
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根据句意和首字母提示补全单词。 【 1 】 There aren’t a _____ colour pencils in my pencil box. 【 2 】 Don’t b ____ late for school again. 【 3 】 Peter is from A ____________ . 【 4 】 There are many a _________ in the zoo. 【 5 】 How many d ___
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Whether we admit it not, many of us have experienced loneliness. Last month, a survey done by US health service company Cigna found that loneliness has become a common phenomenon in the country. It even found that young
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The human touch I had spent an hour in the bank with my dad to transfer(转账)some money. I asked him, "Dad, why not use to o (1) banking?" "Why would I do that?" He replied. "Well, then you won't have to spend an hour here
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从II栏中选出与I栏相对应的句子。 I II 1. Nice to meet you! A. Yes, I am. 2.What’s your name? B. No, he isn’t. 3.You’re Lily, right? C. I’m fine. 4. How are you? D. Nice to meet you, too. 5.Is he our classmate? E. Nick. 【1】_______ 【2】__
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A wise person 每个人的周围肯定有各种各样的有智慧或者聪明的人。请选择一个你所认识的人,用一件事说说他/她是这样的一个人。同时你能从他/她身上学到点什么呢?
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How would you persuade(劝说)your parents to support your dream? American actress Emma Stone created a PowerPoint presentation(陈述)to get her argument across. Stone is a rising star in Hollywood. She has played the role of G
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Kids’ memorizing multiplication tables (乘法表) may help them to be better mathematicians, according to the scientists. After spending a certain amount of time practicing maths, kids can put away the calculator. They don’t
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Today, the Internet is used in nearly every field of life. Does the Internet play an important part in education? Let’s take a look at it in detail. School Projects The Internet can be most _______ for completing project
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In Germany, there are different kinds of high schools. Some students will become workers and others will go to college after they leave high school. All schools are great places for making friends and learning German. 2
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Complete the following sentences as required (根据所给要求,完成下列句子): 【 1 】 He’s seldom late for school. (改为反意疑问句) He’s seldom late for school, _______ _______ ? 【 2 】 It took her three hours to finish the work yesterday afterno
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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】Peter wanted to be a volunteer at the library on his _______ birthday. (twelve) 【2】English is one of the official _______ in Indi
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A. surprise B. suggests C. wonderful D. dreamed of E. museums F. solves G. certainly Most people think that the best store is one with very expensive goods. It’s 【 1 】 great if you have a pocket full of money and can buy
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— Hello, may I speak to Lily? — _______
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Mrs Wang couldn’t fall asleep _______ her son arrived home.
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Ⅳ . 听短文,写出表格中所缺的单词。每空仅填一词。短文读两遍。 Ann and Alice Ann Alice Age (年龄) They are twins. They are 【 1 】 . Eyes (眼睛) Ann’s eyes are blue and 【 2 】 . Alice’s eyes are brown and small. Hair (头发) Ann’s hair is short and brown. Alic
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