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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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七年级·英语·单词拼写Unit 3 Language in use.
根据句意及汉语提示完成单词 【1】Sandy wants to_________(旅行)to Europe. 【2】There is a new _________(电影院)in my city. 【3】This book has all the ___________(信息)you need. 【4】Some children need to go to school by _________(火车). 【5】My brother l
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七年级·英语·书面表达Unit 2 When do you use a computer?
现在电脑越来越受欢迎，并且在人们的生活中扮演者重要的角色，请你写一篇英语短文，谈谈你对电脑的认识，以及你平时都用它做什么。 词数要求：70词。 Today the computer is more and more popular.________.
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七年级·英语·单词拼写/单词释义Unit 2 When do you use a computer?
让我们想想聚会的游戏吧． （think about） （英汉互译） ______
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七年级·英语·单词拼写/单词释义Unit 2 When do you use a computer?
我希望有一天你可以来参观我们的家乡。 ______
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七年级·英语·单词造句Unit 2 When do you use a computer?
were,no,then,there,movies ______.
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七年级·英语·填空题Unit 2 When do you use a computer?
May I ask the computer teacher ______ （check） the computer for me？
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七年级·英语·填空题Unit 2 When do you use a computer?
I think Kunming is a wonderful place ______（visit）.
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七年级·英语·填空题Unit 2 When do you use a computer?
Sandy usually goes to ______ （cloth） shops with her mother.
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七年级·英语·填空题Unit 2 When do you use a computer?
Millie with her parents______ （plan） to go to Jay Chou's concerts this weekend.
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七年级·英语·阅读理解Unit 1 How do I write my homework on the computer?
We make new friends on the Internet. And we get to know people on the Internet.__ ▲ __ Little Chouchou is a little girl from Jiangxi. Her real name is Dai Wenqi. She's six years old. She loves singing( 唱歌 ) ． She often s
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七年级·英语·阅读理解Unit 1 How do I write my homework on the computer?
Many students like watching TV very much. But from Monday to Friday, they must go to school. So on Saturday and Sunday they always stay at home to watch TV. Some children even watch TV from morning to night. They don't k
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七年级·英语·填空题Unit 1 How do I write my homework on the computer?
Today computers are very popular all around the world. Look at the _____ .The old people in the picture are learning how to _____ the computer carefully, too. Now many young people like to _____ their friends in computer
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七年级·英语·填空题Unit 1 How do I write my homework on the computer?
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 like the computer 【 1 】 it can help us do a lot of things. 【 2 】 can we do on the computer? We can do 【 3 】 (we)homework, learn English and 【 4 】 (watch)movi
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七年级·英语·句型转换Unit 1 How do I write my homework on the computer?
按要求完成句子 【 1 】 They write the words on _ the _ blackboard .( 对画线部分提问 ) ______ ________ they write the words? 【 2 】 I save _ the _ document next.( 对画线部分提问 ) _______ do you _________ next? 【 3 】 He often writes his homework
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七年级·英语·填空题Unit 1 How do I write my homework on the computer?
用括号中所给单词的适当形式填空 【1】Please use the mouse and________(click)“new document”． 【2】My brother wants to________(learn)how to save the information. 【3】_______(one), he opens the computer. 【4】_________(final), the girl finishes h
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七年级·英语·填空题Unit 1 How do I write my homework on the computer?
用方框中所给单词的适当形式填空 print；box；learn；final；click；use；write；paper；put；mouse 【1】It's never too old to ________. 【2】There are many________on the desk. 【3】_________,I come back to my country. 【4】Please________these documents. We
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七年级·英语·单词拼写Unit 1 How do I write my homework on the computer?
根据句意及首字母或汉语提示完成单词 【1】The girl _________(保存)her email and walks out of the room. 【2】Could you help me_________(打印)the documents? 【3】That red _________(鼠标)on the desk is mine. 【4】They go to the shop to buy some ________(纸)
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七年级·英语·阅读理解Unit 3 Language in use.
It is Sunday today. It is my grandma's birthday. Father, mother and I go to visit her. My grandma lives with my uncle. In the morning we make a birthday cake and then go to her house. My grandma and uncle are very happy
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七年级·英语·填空题Unit 3 Language in use.
John is five years old. He _______ many birthday presents from his family on his birthday and one of them is a nice big _______. “Who gives him that drum(鼓)?” his father asks. “His _______,” says John's mother. John's gr
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七年级·英语·填空题Unit 3 Language in use.
How do kids _______(度过) their weekends? We ask some students about it in our school. For most children, the weekends are _______(总是) fun. On Saturday morning, they _______(学习) a lot of things, such as playing basketball
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