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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|}=
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阅读下面古诗,根据要求回答问题。 十一月四日风雨大作(其二) 陆游 僵卧孤村不自哀,尚思为国戍轮台。 夜阑卧听风吹雨,铁马冰河入梦来。 对本诗品析 有 误 的一项是 ______ A.诗的一、二句集中在一个思字上,强烈地表达了诗人希望报效祖国的爱国之情。 B.诗的三、四句集中在一个梦字上,幻化出的是诗人魂牵梦绕的情境。 C.全诗格调积极向上,具有强烈的感染力。 D.僵卧道出了老迈境况,孤村表明与世隔绝的状态,真切地写出了作者怀才不遇的怨
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阅读下面两首陆游的诗,然后回答小题。 (甲)游山西村 莫笑农家腊酒浑,丰年留客足鸡豚。 山重水复疑无路,柳暗花明又一村。 箫鼓追随春社近,衣冠简朴古风存。 从今若许闲乘月,拄杖无时夜叩门。 (乙)十一月四日风雨大作 僵卧孤村不自哀,尚思为国戍轮台。 夜阑卧听风吹雨,铁马冰河入梦来。 对诗句理解 不 正 确 的一项是: ______ A.从诗体上看,《游山西村》一首七言律诗,全诗紧扣一个“游”字,按时间的推移和空间的转换来叙述。 B.(乙
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阅读下面这首宋诗,完成各题。 十一月四日风雨大作(其二) 陆游 僵卧孤村不自哀,尚思为国戍轮台。 夜阑卧听风吹雨,铁马冰河入梦来。 诗中“僵”,“孤”点明了诗人怎样的处境?诗人“不自哀”的原因是什么? 请你对“夜阑卧听风吹雨”一句略作赏析。 梁启超对陆游曾有这样的评价:“谁怜爱国千行泪,说到胡尘意不平。”从这首诗中你体会到诗人什么样的品格?
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________student's English speaking and writing abilities is very important.
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When Tom arrived, he learned the TV play ________ for half an hour.
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Oxygen helps the fish stay ________.
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________ limited in the world.
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Computers are useful. For example, they can ________ sending e-mail.
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He’s fed the dog and the cat, _______?
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When you're learning English, use it, ________ you'll lose it.
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As prices and building costs keep rising, the "do-it-yourself" trend (趋势) in the US continues to grow. "We needed furniture for our living room," says John Ross, "and we just didn't have enough money to buy it. So we dec
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Choose the words or expressions and complete the passage( 选择最恰当的单词或词语完成短文 ) : Every year,our school has a dance for all the students.It’s a little funny seeing friends in clean shoes and trousers or colorful dresses,inst
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Happiness is important for everyone. Most people want to be happy but few knowhow to find happiness. Money and success don't bring lasting happiness. Happiness depends on ourselves. In other words, we make our own happin
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Rewrite the following sentenced as required (根据所给要求,改写下列句子。每空格限填一词) 【 1 】 I have; already had my bunch. (改为否定句) I ________ ________ my lunch yet. 【 2 】 A quick walk along Nanjing Road will remind you of many similar name
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Complete the sentenced 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】Computer can work ________ than they did two years ago.(fast) 【2】Tom felt ________ sorry to be late for the Christmas party.(real)
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A. expensive B. comfortable C. depends D. owns E. by himself When most teenagers are learning how to work out maths problems, Kelvin Doe is teaching himself to make batteries and generators(发电机)for his neighbourhood in A
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A. amazing B. raise money C. boring D. pilot E. become Flying into the sky at speeds of up to 100 miles per hour, a pair of nine-year-old British girls broke a record to ______ the world's youngest wing walkers(机翼行走者)! T
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—You'd better go to see the doctor. —________.
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Mr Peterson is taking an airplane. He has to go to Tianjin by train.( )
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Miss Shen had never expected to get the job. She was really when she was offered it.( )
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