按真实条件找题
可以组合年级、学科、难度、题型和知识点搜索;筛选结果页不单独参与索引,避免重复页面分散权重。
游客可浏览题目与选项;登录后可免费组卷并下载学生卷。答案解析、练习判分和错题本由 VIP 解锁。
高频错题
#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|}=
精选练习题目
阅读下面短文,从下面每小题的A、B、C、D四个选项中选出最佳选项。 When you are waiting for a bus at a station, a 31-metre-long bus is coming to you. You must be surprised. In fact, the 31-metre-long bus is the longest bus in the world. And the bus come
查看题目详情 →
阅读表格,从下面每小题的A、B、C、D四个选项中选出最佳选项。 Trip 1 One week in the mountains Bring your strong shoes and warm clothes for this walk in a beautiful areal of the Green Mountains. You may go hiking or have a try of rock climbing. This
查看题目详情 →
阅读短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。 Welcome to this short tour of London. In this square we are standing in the middle of London. Opposite (在对面) is the National Gallery, a museum with lots of famous paintings. Go along the r
查看题目详情 →
阅读下面短文,从下面每小题的A、B、C、D四个选项中选出最佳选项。 I heard that Lijiang was a very famous place for its beautiful sightseeing. When I was young. So I travelled there with my parents during the last winter holiday. We went there by plane.
查看题目详情 →
阅读短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。 Dear Liz, My stay in Thailand has certainly been the experience of my life. Life is busy and exciting. Bangkok is just like any other big city with a population of over 10 million and heav
查看题目详情 →
阅读下面短文,从下面每小题的A、B、C、D四个选项中选出最佳选项。 Venice is well-known for its places of interest, natural beauty and culture. It is in the north-east of Italy. The city is famous all over the world for its canals (运河). It has about118
查看题目详情 →
阅读下面短文,从短文后各题所给三个选项(A、B、C)中,选出可以填入空白处的最佳选项。 We go to many places every day. (1) do you usually travel? Do you usually walk or ride bikes? In a modern city, there are many (2) for you to choose when you go travelling. If
查看题目详情 →
根据短文理解,从A、B、C、D四个选项中选择最佳答案填空。 My family spent a few weeks in London last year. We went there in autumn. We think it is the (1) season to visit England. The weather is usually quite good and there are not too many travele
查看题目详情 →
阅读下面短文,从短文后各题所给三个选项(A、B、C)中,选出可以填入空白处的最佳选项。 Many people like to travel on vacations. Now more and more travellers in the United States are spending nights at small houses (1) inns (小旅馆) instead of (代替) hotels. They get a
查看题目详情 →
选词填空 help one swim they can (1)Tomorrow is Sunday. Let's go .(2)I believe we live on the moon one day.(3)Andy is a boy. We all like him.(4)Lily and Nick are twins. mother is a doctor.(5)—Excuse me, where is the reading r
查看题目详情 →
阅读短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。 Before Monica goes to bed, she looks out of her window and sees the Moon. The Moon looks so beautiful. "I wish I could get the Moon," thinks Monica. But no matter (无论) how hard she tries,
查看题目详情 →
根据表格内容,选择正确答案。SUNNY SCHOOLWe are a bilingual (双语) school for children of 6-15. We want a cook, a library assistant, a sports coach and a language teacher. Job Age Language Skill 0ther terms (其他条件) cook 25~40 Chinese call
查看题目详情 →
根据短文内容,选择正确答案。D Astronauts (宇航员) face many problems when living in space stations. One of them is food. People on Earth put together all the meals first and then send these meals to space stations by space shuttle. Becau
查看题目详情 →
阅读短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。 Life in the future will be different from life today. Between then and now many changes will take place. But what will the changes be? The population is growing fast. There will be many pe
查看题目详情 →
阅读短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。 When you look at the sky at night, the Moon looks bigger than the stars. Actually (实际上), the Moon is much smaller than the stars and the Sun. It's much smaller than the Earth. But the Moon
查看题目详情 →
阅读理解 Hello! I am Joy. I'm a girl. I'm eleven. I'm in Class Eight, Grade Seven. This is my friend, Joan. She is twelve. She is a high school student(中学生). She is in Class Seven, Grade Eight. My English teacher is Miss Whi
查看题目详情 →
阅读下面短文,从下面每小题的A、B、C、D四个选项中选出最佳选项。 I'm a Chinese boy. I love travelling a lot. And I've been to many great places. But I've never travelled into space. My dream is that I can fly to the Moon one day. I know Chinese people
查看题目详情 →
Autumn in Tibet is very beautiful because there are many fresh and bright colors everywhere. In northTibet,one can travel several hundred kilometres by car and can not see even a person.No one can be found in the north o
查看题目详情 →
A farmer loses his watch in the barn.He is worried because the watch has many stories for him. After looking carefully everywhere for a long time,he can't find it.Then he asks for help of a few children playing outside t
查看题目详情 →
There is a greed crocodile.He feels really hungry and he wants something to eat.Suddenly,he sees a little boy.The boy has some meat in his hand.The crocodile wants to eat both the boy and his meat. The crocodile says to
查看题目详情 →
题库使用说明
可以组合年级、学科、难度、题型和知识点搜索;筛选结果页不单独参与索引,避免重复页面分散权重。
题干与选项可直接浏览;答案解析、判分、错题本和针对训练需要 VIP。
发现薄弱知识点后可继续组卷或练同类题,把一次搜索转成后续练习和错题复盘。