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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Lesson 3 Happy Birthday!
【1】She likes to d________________ to the music. She's a good dancer. 【2】Yao Ming is a good b________________ player(运动员). 【3】My uncle has a son and a d________________. 【4】Do you have any i________________ what we should
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七年级·英语·单词造句Lesson 3 Happy Birthday!
is， Jenny， Canada， from ______．
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九年级·英语·选择题Unit 3 Language in use
He was late for school ______ he helped an old woman go home on his way to school．
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九年级·英语·选择题Unit 3 Language in use
She died in London ______ 13th August 1910，______ she was ninety years old．
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九年级·英语·选择题Unit 3 Language in use
I got up early ______ I could catch the first bus．
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九年级·英语·填空题Unit 3 Language in use
Ⅰ．用所给单词的适当形式填空 【1】Many people were ______（die）because they didn't get to hospital quickly enough． 【2】Norman Bethune invented new tools for ______（operate）to help the ______（wound）soldiers． 【3】Though he was very tired，he
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九年级·英语·阅读理解Unit 3 Language in use
Many people think heroes need to be handsome， rich， or very smart． But as for me， a hero is a person who always helps others． My hero is Uncle Bill． He is the oldest son of a worker， an he grew up in a poor family with f
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九年级·英语·选择题Unit 3 Language in use
-Hi，Julia! Why didn't you come to the party yesterday ？ -______ I had to look after my little brother at home．（ ）
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九年级·英语·补全对话Unit 3 Language in use
Ⅳ．补全对话 A ： Congratulations ！ You have won the first prize in the City Violin Competition ． B ： 1 ． 【 1 】 ． A ： 2 ． 【 2 】 ？ B ： Since I was four years old ． I've learnt it for five years ． A ： 3 ． 【 3 】 how to play the vi
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九年级·英语·句型转换Unit 3 Language in use
Ⅲ．句型转换 【 1 】 The man is very old ， so he can't go on working ．（改为同义句） ______ the man is very old ， he can't go on working ． 【 2 】 We'll have to run faster to catch up with others ．（改为同义句） We'll have to run faster ______
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八年级·英语·连词成句Unit 2 My Favourite School Subject
introduce, you, I, will, Lily, to _____________________ .
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八年级·英语·连词成句Unit 2 My Favourite School Subject
talked, have, three, we, for, hours _____________________ .
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八年级·英语·连词成句Unit 2 My Favourite School Subject
a, I, student, am _____________________ .
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八年级·英语·任务型阅读Unit 2 My Favourite School Subject
What is your best subject at school? For some it might be English or math. For some students, when it comes to different subjects, imbalance ( 不平衡 ) becomes a problem. Should you try to balance all subjects, or just spen
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八年级·英语·填空题Unit 2 My Favourite School Subject
Cindy and Anna were best friends. Some days they could spend hours happily together without any argument, but other days they just could not _____ on what to do. One day they decided to play in the garden near their scho
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八年级·英语·填空题Unit 2 My Favourite School Subject
How time flies! Now we are in the 【 1 】 (nine) grade. Our junior high school years will be over and the 【 2 】 (graduate) ceremony is coming in several months. However, I still remember the time when we came to the school
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八年级·英语·单词拼写Unit 2 My Favourite School Subject
(2020 原创 ) When I travel to a new city, I would like to try the l _____ food.
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八年级·英语·单词拼写Unit 2 My Favourite School Subject
(2020 原创 ) I am p _____ in physics, so I have to spend more time on it.
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七年级·英语·填空题Lesson 2 What Do They Look Like?
I have a good friend． His name is Steven． He (1) New York， USA． And now he lives in Shanghai with his parents． He's thirteen years old and his birthday is (2) November．He speaks English and he can speak a little Chinese，
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七年级·英语·填空题Lesson 2 What Do They Look Like?
用适当的冠词填空（不需要时用"/"表示） Jim and I like playing______basketball and I am______basketball fan.
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