1.单选题- (共7题)
(1)－(－a－b)=a－b；(2)5x－(2x－1)－x2=5x－2x－1＋x2；
(3)3xy－
（xy－y2)=3xy－xy＋y2；(4)(a3＋b3)－3(2a3－3b3)=a3＋b3－6a3＋9b3| A．(1)(2) | B．(1)(2)(3) | C．(2)(3)(4) | D．(1)(2)(3)(4) |
有意义的条件是（ ）2.选择题- (共1题)
W: Hello! May I speak to Mr. White, please?
M: Mike White speaking.
W: Hello. {#blank#}1{#/blank#} is Alice Green, Tom's neighbor.
M: Hello. {#blank#}2{#/blank#} can I do for you?
W: Well, Tom said he's been taking piano lessons from you for two years, and I wonder if I can learn from you, {#blank#}3{#/blank#}.
M: I don't think that's a problem. Have you had any musical {#blank#}4{#/blank#} (experience) before?
W: Well, when I was a college student, I spent about half a year {#blank#}5{#/blank#} (learn) to play the guitar. But that was almost ten years ago.
M: Good. {#blank#}6{#/blank#} that case we don't have to start from the very {#blank#}7{#/blank#} (begin).
W: Then can I go with Tom to your next class?
M: I don't think {#blank#}8{#/blank#}. All the people in that class {#blank#}9{#/blank#} (study) with us for about two years, and they come on Sunday mornings. But you can come to another class, on Saturday evening {#blank#}10{#/blank#} Sunday afternoon.
W: Saturday evening is better for me. See you then.
3.填空题- (共4题)
-的结果是 ▲ ．
=______（结果用根号表示）
4.解答题- (共6题)
（1）该水果店两次分别购买了多少元的水果？
（2）在销售中，尽管两次进货的价格不同，但水果店仍以相同的价格售出，若第一次购进的水果有3% 的损耗，第二次购进的水果有4% 的损耗，该水果店希望售完这些水果获利不低于3780元，则该水果每千克售价至少为多少元？
（1）直接写出点B的坐标及一元二次方程ax2+bx﹣1.5=0的解．
（2）求抛物线L的解析式及顶点M的坐标．
（3）如图2，设点P是抛物线L上的一个动点，将抛物线L平移．使它的頂点移至点P，得到新抛物线L′，L′与直线l相交于点N．设点P的横坐标为m
①当m=5时，PM与PN有怎样的数量关系？请说明理由．
②当m为大于1的任意实数时，①中的关系式还成立吗？为什么？
③是否存在这样的点P，使△PMN为等边三角形？若存在．请求出点P的坐标；若不存在，请说明理由．
（1）求一次函数的表达式；
（2）若将直线AB向下平移m(m＞0)个单位长度后与反比例函数的图象有且只有一个公共点，求m的值．
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【1】题量占比
单选题:(7道)
选择题:(1道)
填空题:(4道)
解答题:(6道)
-
【2】：难度分析
1星难题：0
2星难题：0
3星难题：0
4星难题：1
5星难题：0
6星难题：4
7星难题：0
8星难题：7
9星难题：5