、(8分)已知一次函数y=Kx+b的图象过点(3,5)与(-4,-9), 小题1

题型:解答题

问题:

、(8分)已知一次函数y=Kx+b的图象过点(3,5)与(-4,-9),

小题1:(1)求这个一次函数解析式。

小题2:(2)利用函数图象求当x为何值时,y>0。

考点:一次函数的定义正比例函数的定义正比例函数的图像
题型:解答题

阅读短文,根据意思,从各题所给的A、B和C三个选项中选出最佳答案。

One midnight(午夜), a little girl woke up (醒来)to pass water. She by herself got up and down her bed, walked to the bedroom door and opened it. She looked outside and walked back, for it was so dark in the hall that she feared(害怕).

Her mother said, “Don’t be afraid, honey. Take courage(勇敢些)!”

“What’s courage(勇气)?” she asked, running to her mother’s bed.

“Courage is the brave(勇敢的) breath(呼吸),” her mother answered.

“Mum, do you have courage?”

“Certainly.”

The girl held out(伸出) her little hands, saying, “Mum, blow(吹) some of your breath of courage to me.”

After her mother blew out two mouthfuls(口) of breath into her little cold hands, the little girl clenched her fists(握拳) nervously(紧张地), afraid that the “breath of courage” would run away(跑掉). Then with her fists clenched, she walked out of the bedroom towards the bathroom with nothing to fear.

Her mother said to herself, “It will be nice if someone can blow some kinds of ‘breath’ to me. Then I can hold it in my hands too when I feel terrified or lost.”

In fact, mostly, what we are terrified of is nothing but the fear in our mind(心). Who we should defeat(战胜) is nobody but ourselves.

小题1:The girl walked back because __________.

A. the bathroom was too far away

B. her mother wouldn’t go with her

C. she was too afraid of the dark                  

小题2:We learn from the reading that ___________.

A. the girl went to the bathroom by herself       

B. the girl pretended to be terrified of nothing

C. the girl’s mother was able to blow brave breath

小题3:To stop “mother’s breath” from running away, the girl __________.

A. held out her little hands

B. clenched her fists          

C. talk to her mother

小题4:The writer mainly wants to tell us that ________.

A. adults are always brave enough                

B. children learn to be brave quickly

C. the fear in one’s mind is the real problem

小题5:Which is the best title of the passage?

A. The Fearless Mother         

B. One Lonely Girl      

C. The Breath of Courage

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必须施作锚喷支护才能在洞室周围形成承载圈。

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小企业金融服务专营机构要单独建立授信()制度,在考核整体质量及综合回报的基础上,根据实际情况和有关规定追究或免除有关当事人的相应责任。

A.调查

B.审查

C.审批

D.尽职免责

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世界泄洪能力最大的泄洪闸是三峡工程,泄洪闸最大泄洪能力为()万立方米/秒。

A.6.25

B.8.25

C.10.25

D.12.25

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在清扫滚筒上的粘煤时,必须先停机后清理。

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