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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·英语·阅读理解-
It is a hot summer day. Clara is drinking juice in the yard. Her mom is cutting grass with a lawnmower （割草机） . The lawnmower is loud, and Clara wishes her mom would play with her instead. But mom says the grass is very l
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九年级·英语·选择题-
— I wonder_________. — Well, I think Qingfeng Lake Park is a good choice.
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九年级·英语·选择题初中英语知识点》动词》动词分类》短语动词###初中英语知识点》词汇》短语》B》bring out###初中英语知识点》词汇》短语》G》give up###初中英语知识点》词汇》短语》S》set up###初中英语知识点》词汇》短语》S》shut off###人教新目标Go For It!》九年级全册》Unit 9 I like music that I can dance to.》单元综合与测试###
By the end of 2025, garbage-sorting systems （垃圾分类系统） will be ________ in Dongying.
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九年级·英语·选择题初中英语知识点》词汇》单词》C》continue###初中英语知识点》词汇》单词》D》decide###初中英语知识点》词汇》单词》R》refuse###初中英语知识点》词汇》单词》S》stop (停止)###外研版》九年级上册》Module 3 Heroes》 Unit 2 There were few doctors，so he had to work very hard on his own.###初中英语知识点》动词》动词分类》实义动词
We should__________to buy products that come from wild animals. A large number of them are in danger.
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九年级·英语·选择题初中英语知识点》数词》表达算式###
We asked 200 students in our school about whether they wanted a younger brother or sister. Here are the results. It shows that ________ percent of them don’t want to have one. This is a big problem.
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九年级·英语·选择题初中英语知识点》词汇》单词》B》but (但是)###初中英语知识点》词汇》单词》O》or (或者)###初中英语知识点》词汇》单词》S》so (因此)###初中英语知识点》词汇》单词》W》while (但是)###
Many students hated to have classes on DingTalk, ________ they gave it one-star reviews （评价） .
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九年级·英语·选择题初中英语知识点》词汇》单词》B》break (打破/终止)###初中英语知识点》词汇》单词》C》change (改变 v.)###初中英语知识点》词汇》单词》C》control###初中英语知识点》词汇》单词》C》copy###外研版》九年级上册》Module 5 Museums》 Unit 2 If you ever go to London，make sure you visit the Science Museum.###初中英语知识点》
5G, as a new global network （全球网络） after 3G and 4G, will certainly ________ our life in many ways.
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九年级·英语·选择题初中英语知识点》名词》名词辨析###初中英语知识点》词汇》单词》D》day###初中英语知识点》词汇》单词》F》festival###初中英语知识点》词汇》单词》P》period###初中英语知识点》词汇》单词》V》vacation###外研版》九年级上册》Module 10 Australia》 Unit 2 The game that they like most is Australian footabll.###
—Many mothers smiled from ear to ear when they got the news that children could go back to school. —That’s true. It is the ________ that they had been looking forward to.
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九年级·英语·选择题-
— We will have a 2. 5-day weekend soon. — _____ exciting news! We can hang out on Friday afternoons.
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九年级·英语·选择题初中英语知识点》名词》名词辨析###初中英语知识点》词汇》单词》A》advantage###初中英语知识点》词汇》单词》E》exam/examination###初中英语知识点》词汇》单词》I》interest (兴趣/爱好/好奇心)###初中英语知识点》词汇》单词》M》method###外研版》九年级上册》Module 8 Sports life》 Unit 2 He was invited to competitions around th
Many jobs require people who are good at English. If your English is good, you will have one more ________ when searching for jobs.
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九年级·英语·选择题初中英语知识点》词汇》单词》A》although###初中英语知识点》词汇》单词》B》because###初中英语知识点》词汇》单词》I》if (如果)###初中英语知识点》词汇》单词》U》until###牛津译林版》九年级上册》Module 2 Entertainment》Unit 7 Films###仁爱版》九年级上册》Unit 2 Saving the Earth》2. All these problems are very serious
________ he is dead, Kobe Bryant’s spirit will continue to influence us.
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九年级·英语·选择题初中英语知识点》词汇》单词》H》hear(heard heard)###初中英语知识点》词汇》单词》R》read(read read)###初中英语知识点》词汇》单词》S》speak(spoke spoken)###初中英语知识点》词汇》单词》W》write(wrote written)###初中英语知识点》动词》动词分类》实义动词》动词辨析###
— My pet dog is lost, Mary. — I’m sorry to hear that. Why not put an ad （广告） in the newspaper? — Don’t be silly. He can’t ________.
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九年级·英语·选择题初中英语知识点》代词》反身代词###初中英语知识点》词汇》单词》I》it###初中英语知识点》词汇》单词》Y》you###初中英语知识点》词汇》单词》Y》yourself###初中英语知识点》词汇》单词》Y》yourselves###外研版》九年级下册》Module 4 Rules and suggestions》Unit 1 You must be careful of falling stones.###
— Take care while walking along the wet hill path （小径） . You may fall and hurt ________. — OK. Thanks for reminding me.
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九年级·英语·选择题初中英语知识点》副词》副词辨析###初中英语知识点》形容词》形容词辨析###初中英语知识点》词汇》单词》D》dangerous###初中英语知识点》词汇》单词》E》exciting###初中英语知识点》词汇》单词》F》famous###初中英语知识点》词汇》单词》I》interesting###
Wingsuit Flying （翼装飞行） is one of the most ________ sports in the world. Nearly 30% people who take part in it may lose their lives.
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九年级·英语·选择题初中英语知识点》词汇》单词》B》beautifully###初中英语知识点》词汇》单词》C》clearly###初中英语知识点》词汇》单词》L》loudly###初中英语知识点》词汇》单词》Q》quietly###
Han Hong is a talented singer. She can not only sing ________ but also write her own songs.
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九年级·英语·选择题初中英语知识点》副词》副词辨析###初中英语知识点》形容词》形容词辨析###初中英语知识点》词汇》单词》B》bored###初中英语知识点》词汇》单词》R》relaxed###初中英语知识点》词汇》单词》S》surprised###初中英语知识点》词汇》单词》W》worried###外研版》九年级上册》Module 7 Great books》 Unit 2 It is still read and loved.###人教新目标Go For I
— Mummy, why do you have grey hair? — Because you always make me ________. — Oh, I know why my grandma’s hair is white.
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九年级·英语·选择题初中英语知识点》名词》名词辨析###初中英语知识点》词汇》单词》B》book (书/本子)###初中英语知识点》词汇》单词》D》dictionary###初中英语知识点》词汇》单词》E》eye###初中英语知识点》词汇》单词》M》map###人教新目标Go For It!》九年级全册》Unit 9 I like music that I can dance to.》单元综合与测试###
An electronic is a smart guide. It can lead us to the place we want to go to.
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九年级·英语·选择题初中英语知识点》词汇》单词》A》anything###初中英语知识点》词汇》单词》E》everything###初中英语知识点》词汇》单词》N》nothing###初中英语知识点》词汇》单词》S》something###
When Anna opened her wallet, she was surprised to find ________. It was empty.
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九年级·英语·选择题初中英语知识点》代词》物主代词》形容词性物主代词###初中英语知识点》词汇》单词》H》his###初中英语知识点》词汇》单词》O》our###初中英语知识点》词汇》单词》T》their###初中英语知识点》词汇》单词》Y》your###
Most parents think that it is the happiest thing to spend time with ________ children.
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九年级·英语·选择题初中英语知识点》副词》副词的种类》频度副词###初中英语知识点》词汇》单词》A》always###初中英语知识点》词汇》单词》N》never###初中英语知识点》词汇》单词》S》seldom###初中英语知识点》词汇》单词》S》sometimes###外研版》九年级下册》Module 3 Life now and then》Unit 1 They sometimes work harder.###
Everyone in our neighborhood loves my grandma because she is ________ kind to others.
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