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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·选择题Unit 1 Writing a travel guide
—I think English is more useful than Chinese. —I don't ________ you. They are both useful.
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七年级·英语·书面表达Unit 9 How often do you exercise?
百分之十的学生至少每周使用网络三或四次。 Ten______ of the students use the Internet____________three or four times a week.
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七年级·英语·书面表达Unit 9 How often do you exercise?
我们认为放松的最好方式是通过锻炼。 We think the best way____________is____________.
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七年级·英语·书面表达Unit 9 How often do you exercise?
妈妈说喝牛奶对我的健康有好处。 My mother says it's____________my health__________________.
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七年级·英语·书面表达Unit 9 How often do you exercise?
刘芳，你多久喝一次牛奶？ ____________do you drink milk, Liu Fang？
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七年级·英语·书面表达Unit 9 How often do you exercise?
汤姆每天早晨总是锻炼身体。 Tom____________in the morning every day.
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七年级·英语·书面表达Unit 9 How often do you exercise?
虽然他很忙，但他还是经常帮我学英语。 ______ he's very busy, he often helps me with my English.
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七年级·英语·书面表达Unit 9 How often do you exercise?
我每天晚上看两个多小时的电视。 I watch TV____________two hours every night.
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七年级·英语·书面表达Unit 9 How often do you exercise?
这个商店卖很多学习用品，比如铅笔、橡皮和别的东西。 The shop sells many school things,____________pencils, erasers and others.
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七年级·英语·单词拼写/单词释义Unit 8 What did you do last weekend?
they,them,are,call,go,great,went,how A：Where did you (1) last night？ B：I (2) to the movies. A： (3) there any people in the cinema？ B：Yes,and most of (4) were young people. A (5) was your night？ B；It was very (6) . A：What
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七年级·英语·填空题Unit 8 What did you do last weekend?
She often plays volleyball after school,but she______（carry）water for her mother last Saturday.
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七年级·英语·填空题Unit 8 What did you do last weekend?
They______（work）in the factory in 1997.
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七年级·英语·填空题Unit 8 What did you do last weekend?
-Do you like______（swim）？ -No,but I like skating.
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七年级·英语·填空题Unit 8 What did you do last weekend?
It's time______（have）an English party.Let's begin.
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七年级·英语·填空题Unit 8 What did you do last weekend?
______（not look）out of the window,children.
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七年级·英语·单词拼写/单词释义Unit 8 What did you do last weekend?
在那个时候我们看见一条大蛇正在篝火附近睡觉． We______ a big snake______ near the fire at that time.
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七年级·英语·单词拼写/单词释义Unit 8 What did you do last weekend?
我告诉游客关于它们以及它们的生活习惯。 I______the visitors______ them and their living habits.
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七年级·英语·阅读理解Unit 7 How was your school trip?
Dear John， Thank you very much for your letter．I am glad that you enjoyed our holiday with me．We enjoyed having you and your sister here．We hope that you will both be able to come again next year．Perhaps you'll be able t
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七年级·英语·填空题Unit 7 How was your school trip?
I think the best place to go on Sunday is the zoo． When you are (1) ， you can go there with your family． (2) the zoo， there are many animals： elephants， deer， (3) ， rabbits and other animals． Elephants are the (4) animal
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七年级·英语·完成句子Unit 7 How was your school trip?
根据句意，用括号内所给动词的适当形式填空． ______ （ not close ） the door．
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