1.单选题- (共8题)
2.选择题- (共5题)
短文改错。文中共有10处语言错误,每句中最多有两处。每处错误涉及一个单词的增加、删除或修改。
增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。
删除:把多余的词用斜线(﹨)划掉。
修改:在错的词下面画一横线,并在该词下面写出修改后的词。
注意:1). 每处错误及其修改均仅限一词;
2). 只允许修改10处,多者(从第11处起)不计分。
Dear Xiaohua,
It is four days since mother recieves the operation. She is feeling much more better. The doctors told me the operation was successful, but because her old age she had to stay in hospital for other two weeks. The doctors also say it was quite necessary for him to do so. We expect to get a full report in two and three days. Please tell the good news to the rest of the family as soon as possible. You need't come here. I'm able to look at mother by myself. You can send some flower to her. She will feel very happily.
Yours,
Xiaohua
短文改错。文中共有10处语言错误,每句中最多有两处。每处错误涉及一个单词的增加、删除或修改。
增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。
删除:把多余的词用斜线(﹨)划掉。
修改:在错的词下面画一横线,并在该词下面写出修改后的词。
注意:1). 每处错误及其修改均仅限一词;
2). 只允许修改10处,多者(从第11处起)不计分。
Dear Xiaohua,
It is four days since mother recieves the operation. She is feeling much more better. The doctors told me the operation was successful, but because her old age she had to stay in hospital for other two weeks. The doctors also say it was quite necessary for him to do so. We expect to get a full report in two and three days. Please tell the good news to the rest of the family as soon as possible. You need't come here. I'm able to look at mother by myself. You can send some flower to her. She will feel very happily.
Yours,
Xiaohua
3.填空题- (共5题)
4.解答题- (共8题)
x2+2ax﹣3a2
=x2+2ax+a2﹣a2﹣3a2(先加上a2,再减去a2)
=(x+a)2﹣4a2(运用完全平方公式)
=(x+a+2a)(x+a﹣2a)(运用平方差公式)
=(x+3a)(x﹣a)
像上面那样通过加减项配出完全平方式后再把二次三项式分解因式的方法,叫做配方法.
请你用配方法分解因式:m2﹣4mn+3n2
(1)求购买一件甲种器材、一件乙种器材各需多少元?
(2)该中学决定再次购买甲、乙两种运动器材共50件,恰逢该商场对两种运动器材的售价进行调整,甲种器材售价比第一次购买时提高了10%,乙种器材售价比第一次购买时降低了10%,如果此次购买甲、乙两种器材的总费用不超过1 700元,那么这所学校最多可购买多少件乙种器材?
(1)求证:△ABE≌△CAD;
(2) 求BE的长

(1)当PN∥BC时,判断△ACP的形状,并说明理由;
(2)点P在滑动时,当AP长为多少时,△ADP与△BPC全等,为什么?
(3)点P在滑动时,△PCD的形状可以是等腰三角形吗?若可以,请求出夹角α的大小;若不可以,请说明理由.

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【1】题量占比
单选题:(8道)
选择题:(5道)
填空题:(5道)
解答题:(8道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:12
7星难题:0
8星难题:5
9星难题:4