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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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It's Sunday today.There're many _____ in the park.Some are walking.Some are _____ tea.Others are watching flowers.Look!That is Lucy.She's flying a kite(放风筝)with her _____ Tom.The kite is high in the sky now.Their parents
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阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空白处填入一个适当的词或使用括号中词语的正确形式填空。 I've got some nice 【 1 】 (photo) . Now let 【 2 】 (I)show them to you. Please look 【 3 】 the first photo.It's half past eight in the morning.The students are 【 4 】 (
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根据图片及括号中所给的短语提示,用现在进行时描述图片,每幅图片写两句话 【1】 (plant trees,not plant flowers) ______________________________________________ 【2】 (have dinner,not have breakfast) ______________________________________________ 【3】 (send flowers
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按要求完成句子 【1】—Are they looking at maps?(作否定回答) —No,__ __. 【2】My mother lies in the bed.(用at the moment 改写句子) My mother __ __ in the bed at the moment. 【3】I watch TV every night.(用now改写句子) I __ __ TV __. 【4】We are having a
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根据句意及汉语提示完成单词 【1】Jenny is __ (享受)the picture now. 【2】They want to have lunch in the __ (餐馆)today. 【3】Stay here for a __ (片刻).I'll be back soon. 【4】Mr Wang is tired,but he is __ (仍然)working there. 【5】Who is __ (开车送)these
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A:(1)______me,is there a bank near here? B:Yes,walk(2)______this street.(3)______right(4)______the third crossing. A:(5)______(6)______is it from here? B:About 6 kilometers away. A:Oh,dear!I don't think I can(7)______the
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difficult,quickly,afraid,villagers,bridge In different places,different students get to school in different ways.For many students,it is easy to get to school.But for the students in one small village,it is (1) .They hav
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say;be;visit;eat;leave John is French.He went to Britain last summer and he (1) some of his British friends there.John stayed in Mr.and Mrs.Smith's house for a week. On his last evening with the Smiths,John said to them,
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A:Excuse me,sir.(1) ______ B:Certainly.Go along this street.Turn left into Yimin Street,and the museum is on your right. A:(2) ______ B:It's about thirty minutes. A:I see.(3) ______ B:Yes,you can.A No.4bus will take you
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A: Excuse me. Could you tell me where the nearest museum is? B: Well, it's a bit far. You can go along the street, then take the first turning on the right. Walk on and you'll find one there. (1) A: Oh, thanks. (2) B: It
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If you go to Hong Kong by air,you will arrive at Hong Kong International Airport.Because there was not enough land,it was built (被建造) out into the sea.It is in the part of Hong Kong called Kowloon.Kowloon is one of the t
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It's a (1) (晴朗的)day.Jack is a (2) (游客)from England.He would like to visit the (3) (博物馆).Could you show him how to get to the museum?OK.Walk across the new (4) (桥),and then walk (5) (沿着) Dongfeng Road. (6) (换方向) right int
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China's government decided to establish the Xiongan New Area in Hebei years ago.It would be built into a smart city in China.What will life be like in a smart city? Do you dream of the life like this?When you wake up in
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任务型阅读 This is a picture of a park.There are many people in the park.They are having a good time.Some boys are playing games.Some girls are singing and dancing under a big tree.Two old men are playing chess near the tree.
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When I'm sitting at the table,father comes into the room and says to us with a smile,“I forget(忘记)to tell you the good news.There is a letter(信)from Aunt Amy.She's coming to see us with her little son Tony this afternoon
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阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空白处填入一个适当的词或使用括号中词语的正确形式填空。 Today is Saturday.It's nine o'clock.The Smiths 【 1 】 (be)all at home.Mrs Smith is watching a TV shopping programme( 节目 ) . She wants to buy a bike( 自行车 ) 【 2 】 TV ,
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任务型阅读 August(八月) Sunday Monday Tuesday Wednes day Thursday Friday Saturday 1st 2nd Art Festival 3rd 4th 5th Bas ketball game 6th 7th 8th Speech contest 9th 10th 11th Jim's birthday 12th 13th 14th English party 15th 16t
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阅读理解 The four children are from different countries,but they all like Chinese festivals. I am Danny,12.I am from Russia.My favourite Chinese festival is the Dragon Boat Festival.At this festival I can see different drago
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根据短文内容和括号内所给汉语意思,写出空白处各单词的正确形式 ( 每空一词 ) 。 Mother's Day is coming.Today we have a discussion about how to give thanks to our 【 1 】 ( 父母亲 )in class.Our teacher says we could make some 【 2 】 ( 食物 )for them.We all think it i
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根据图片,补全问句或答语 【1】 —_____ Tom _____ ______ ______? —Yes, he is. 【2】 —_____ Helen ______? —Yes, she is. 【3】 —Are the dogs lying in the sun? —____,_______ _______. 【4】 —______ Mike and Mary ____ ____ _____ ______? —Yes, they
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