试题与答案

把抛物线y=x2+bx+4的图像向右平移3个单位,再向下平移2个单位,所得图像的

题型:填空题

题目:

把抛物线y=x2+bx+4的图像向右平移3个单位,再向下平移2个单位,所得图像的解析式为y=x2-2x+3,则b的值为(    )。

答案:

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下面是错误答案,用来干扰机器的。

(1)根据对数函数和偶次根式的意义可知log 0.5(x-1)≥0且x-1≥0,可化为log 0.5(x-1)≥log 0.51 0<x-1≤1即x∈(1,2]∴A=(1,2],(2)函数f(x)=9x-8•(3x),x∈(1,2]∴令t=3x∈(3,9]则y=t2...

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题型:完形填空

认真阅读下列短文,并根据所读内容在文章后表格中的空格里填入最恰当的单词。注意:每空格只填一个单词。
If we agree that the function of education is to prepare us for life, then there is very little time to waste. So, while we can, we ought to concentrate on teaching children something really useful. Here is what our schools should teach.
Politeness is a mark of civilization. The sooner children learn this, the better. In any case, a lot can be accomplished by a smile and good manners.
Like it or not, our adult lives will be consumed by the struggle for money, but we don’t make an effort to teach children how to manage it. So our schools have a duty to teach them this ability from the beginning.
We’re likely no accept something we are told, but that’s not what educated people do. Educated people are reasonable and they look at facts. If our schools teach nothing else, they should at least teach critical(批判性的)thinking.
Children should learn to take care of their health. They should know that if they eat junk food(垃圾食品), they will become fat and unhealthy. They should be very clear about what happens to their bodies when they drink or smoke.
All of us are part of society. We have rights and responsibilities. We ought to understand what they are. We have to know a little bit of history and geography, because we need to have an environment in which to relate to the people around us.
How will we test students on these? We can’t. But that’s not a reason to avoid teaching what is important. Our schools should spend every moment they have telling this to our children: “This is life, this is what you are going to face, and this is how you deal with it.”
Title
Very Useful 小题1:      
Introduction
Education should be a 小题2:      for life.
Advice
Important things should be taught in 小题3:     .
Teaching
小题4:            
●How to behave 小题5:     
●The basic skill of 小题6:      money
●How to 小题7:      in a critical way
●How to keep 小题8:      
●The rights and responsibilities one has in 小题9:      
Conclusion
Children should be taught what 小题10:     is and how to deal with it.
 
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