2014中考名师推荐数学一次函数

1.

已知正比例函数

的图象经过点（1，－2），则正比例函数的解析式为（）

A．

B．

C．

D．

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2.请仔细阅读 1—5 题中的学习方法的描述，然后从 A—F 六个选项中，选择最合适的答案。（有一个多余项）

Secrets of top students

⒈ Example One: "If I don't understand what my teacher is explaining in the science, I ask him to say it again," says Anna Lee. "also asking more helped a lot." {#blank#}1{#/blank#}

⒉ Example Two: "When a teacher asks us to do a lot of homework," says Dave Roman " I will draw up a timetable and plan to do it little by little, so it isn't so tiring. " {#blank#}2{#/blank#}

⒊ Example Three: One student put a vocabulary list on the wall of the bathroom. He learned a new word every day while brushing his teeth. Another student used the time to remember biology terms while practicing running. {#blank#}3{#/blank#}

⒋ Example Four: In high school, Mike played football, painted and was in the band. "I was so busy that I couldn't waste time looking for a pencil or missing paper. I kept everything in order." He says. {#blank#}4{#/blank#}

⒌ Example Five: Christi is an excellent student at the university. If her math teacher asks her to do five problems, she does ten. If the history teacher asks her to read five pages, she reads ten. "Part of learning is practicing," she says, "and the more you practice, the more you learn." {#blank#}5{#/blank#}

A.Plan your time well.

B.Get your things in order.

C.Speak out and ask more.

D.Study anywhere or everywhere.

E.Do more than you are asked.

F.Make yourself busy

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3.请仔细阅读 1—5 题中的学习方法的描述，然后从 A—F 六个选项中，选择最合适的答案。（有一个多余项）

Secrets of top students

⒈ Example One: "If I don't understand what my teacher is explaining in the science, I ask him to say it again," says Anna Lee. "also asking more helped a lot." {#blank#}1{#/blank#}

⒉ Example Two: "When a teacher asks us to do a lot of homework," says Dave Roman " I will draw up a timetable and plan to do it little by little, so it isn't so tiring. " {#blank#}2{#/blank#}

⒊ Example Three: One student put a vocabulary list on the wall of the bathroom. He learned a new word every day while brushing his teeth. Another student used the time to remember biology terms while practicing running. {#blank#}3{#/blank#}

⒋ Example Four: In high school, Mike played football, painted and was in the band. "I was so busy that I couldn't waste time looking for a pencil or missing paper. I kept everything in order." He says. {#blank#}4{#/blank#}

⒌ Example Five: Christi is an excellent student at the university. If her math teacher asks her to do five problems, she does ten. If the history teacher asks her to read five pages, she reads ten. "Part of learning is practicing," she says, "and the more you practice, the more you learn." {#blank#}5{#/blank#}

A.Plan your time well.

B.Get your things in order.

C.Speak out and ask more.

D.Study anywhere or everywhere.

E.Do more than you are asked.

F.Make yourself busy

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4.

如图，A（1，0），B（4，0），M（5，3）．动点P从点A出发，沿x轴以每秒1个单位长的速度向右移动，且过点P的直线l：y=-x+b也随之移动．设移动时间为t秒．

（1）当t=1时，求l的解析式；
（2）若l与线段BM有公共点，确定t的取值范围；
（3）直接写出t为何值时，点M关于l的对称点落在y轴上．如不存在，请说明理由．

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2014中考名师推荐数学一次函数

1.单选题(共1题)

2.选择题(共2题)

3.解答题(共1题)

【1】题量占比

【2】：难度分析