问题 填空题

如果a=0.5b,(a和b均为非0自然数),那么a与b的最大公因数是______.a和b成______比例.

答案

(1)因为a=0.5b,可得b=2a(a和b均为非0自然数),可知a和b是倍数关系,其中a是较小数,所以a和b最大公因数是a;

(2)由a=0.5b,(a和b均为非0自然数),可知a:b=0.5,即a和b的比值一定,根据正比例的意义,a和b成 正比例;故答案为:a,正.

阅读理解

Nick Vujicic was born, without arms and legs, in 1982 in Melbourne, Australia. Nick faced all kinds of problems and troubles in his life. But he never gives up. Now Nick has his own speaking company: Attitude Is Attitude. And he has traveled around the world to give speeches. He shares with his audience the importance of vision and dreaming big. He says attitude (态度) is the most powerful tool in the life and failure (失败) is just a learning experience.
Mark Zuckerberg, the boss of Facebook, is only 28. In only 8 years, Zuck turned his small website into a world famous network. Zuck once wrote to his workmates, "We don't build services to make money; we make money to build better services"
Jeremy Lin's excellent performances in basketball courts attracted the eyes of both Americans and Chinese this year. Then what has led this young man to such a success? The following may help us understand it.
Believe in yourself;
Catch the chance when it comes up;
Find the system that works for your style;
People will love you for being yourself;
Stay humble (谦逊).
小题1:Attitude Is Attitude is _______.
A.the title of Nick's speechB.Nick's company
C.an international organizationD.a machine that can speak
小题2:Which of the following about Nick is wrong?
A.Nick had no arms or legs when he was born
B.He says people can learn from their failures
C.He tells his audience to dream big and have vision
D.He has never traveled around the world so far
小题3:Facebook is _______.
A.a world-wide networkB.Zuck's workmateC.a popular bookD.Zuck's boss
小题4:From what Zuck wrote, We can learn  _______.
A.Facebook doesn't build services
B.Facebook doesn't make money
C.offering better services is more important than making money
D.building services doesn't make money
小题5:From Jeremy Lin's success, we can find _______.
A.one must have self-confidenceB.catching the chance is the most important
C.one should try his best to follow othersD.one must keep the rules all the time
单项选择题