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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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九年级上·英语·阅读理解Unit 4 Problems and advice
阅读理解 Friends are important to the children. Research shows that children who have no friends can suffer from difficulties later in life. Friendship provides children with more than just fun. By making friends, children l
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九年级上·英语·填空题Unit 4 Problems and advice
根据短文理解，从A、B、C、D四个选项中选择最佳答案填空。 Anne is a newspaper reporter. She chose this （1） so she could travel around the world. The work has taught her many （2） lessons. She has seen wars, earthquakes and death. But she has also se
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九年级上·英语·填空题Unit 4 Problems and advice
阅读下面短文, 从短文后所给的A、B、C三个选项中选出能填入相应空白处的最佳选项。 My mother's loving hands Night after night, she came to help me sleep, even long after my childhood years. I don't remember （1） it first started making me a little angry-my mum's
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九年级上·英语·填空题Unit 4 Problems and advice
语法填空 I was looking through my old photos last Sunday. One photo (catch) my eye. In the photo, I was sitting in a chair, hugging Duke, my best friend in the whole world. Duke was an interesting name for such (an) little d
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九年级上·英语·填空题Unit 4 Problems and advice
阅读下面短文，根据文章大意用所给单词的适当形式填空（未提供单词的，限填一词），使文章意思完整、正确。 There is a nice family living in Valladolid, a beautiful city in Spain. father, Jose Garcia, is a tall and friendly man. He (work) in a famous company. He married Teresa
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八年级·英语·填空题Unit 1 Penfriends
Dear Editor, I am a shy girl. I s__________ speak to boys, even when they choose to talk to me. Sometimes I do want to chat with them, but then my face will turn red. My heart will beat very f__________ . I often hate my
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八年级·英语·填空题Unit 1 Penfriends
Once there was a naughty rabbit who liked to play tricks, and it made other animals __________ . One day, a wolf said to a fox,“I have an idea to catch the rabbit. You go back home now and get into bed. I'll go tell the
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八年级·英语·其他Unit 1 Penfriends
The Quest Centre Set in the wild Welsh countryside, the Quest Centre offers a wide range of activities for teenagers, from archery to rope climbing. Want to try something new? Why not take part in one of our special adve
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八年级·英语·句型转换Unit 1 Penfriends
Complete the following sentences as required （根据所给要求，完成下列句子） : 【 1 】 I have to finish the extra homework tonight. （改为否定句） ________ ________ to finish the extra home work tonight. 【 2 】 There is plenty of water in the wat
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八年级·英语·填空题Unit 1 Penfriends
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】The singer was known by people through many of his music ________ on You Tube. （video） 【2】Joan is as heavy as Tina. They have th
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八年级·英语·填空题Unit 1 Penfriends
A. quiet B. a large number of C. all day long D. noisy E. live on F. friendly G. sounds The crow is an ordinary bird. It is about twenty inches long and black all over. Crows are dirty birds because they 【 1 】 old bad fo
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八年级·英语·选择题Unit 1 Penfriends
- Would you like to be my pen friend? - ________
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八年级·英语·选择题Unit 1 Penfriends
-________ will your uncle come back from London? - In a few days.
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七年级·英语·填空题Unit 11 My food project
We Chinese all like eating rice, and many people from other counties like eating rice, too. In China, fried rice is very p 【 1 】 . If you eat J 【 2 】 food, don't miss sushi. It's very delicious food. Indonesians have a s
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七年级·英语·填空题Unit 11 My food project
Henry is a little fatter than he _____to be. He wants to lose some weight. He tries not to eat too _____ and he eats very little sugar because it will _______ him fat. He is also taking some exercise every day. Now he is
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七年级·英语·阅读理解Unit 11 My food project
An old porter worked at the railway station for a long time. One morning he was standing and waiting for travelers to ask him to help them with their luggage（包裹）, when he saw a short man running towards -the train with a
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七年级·英语·阅读理解Unit 11 My food project
Mr. Howe worked in an office. He studied（研究）the old things and sometimes bought some for himself. So he got a lot of money. Eight years ago, when he was sixty-five, he retired （退休）. He needn't worry about food or clothes
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七年级·英语·句型转换Unit 11 My food project
Rewrite the following sentences as required （根据所给要求 , 改写下列句子）： 【 1 】 I need to buy some bread and yoghurt. （改为否定句） I ___________ ___________ to buy any bread or yogurt. 【 2 】 He's taken some photos of his classmates. （改为
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七年级·英语·填空题Unit 11 My food project
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】She is ____________ at dancing than singing. (good) 【2】Shanghai is such a(n)___________ city that so many people come and work he
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七年级·英语·选择题Unit 11 My food project
We had ____________ delicious food and drinks.
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