问题 选择题
下列说法中错误的是(  )
A.-
3
2
x2y
的系数是-
3
2
B.0是单项式
C.
2
3
xy
的次数是1
D.-x是一次单项式
答案

A、-

3
2
x2y的系数是-
3
2
,故本选项正确;

B、0是单独的一个数,是单项式,故本选项正确;

C、

2
3
xy的次数是2,故本选项错误;

D、-x是数与字母的积,故是单项式,故本选项正确.

故选C.

阅读理解

Once there was a piano player in a bar. People came just to hear him play. But one night, a lady asked him to sing a song.

"I don’t sing," said the man.

But the lady told the waiter, "I’m tired of listening to the piano. I want the player to sing!

The waiter shouted across the room, "Hey, friend! If you want to get paid, sing a song!’

So he did. He had never sung in public before. Now he was singing for the very first time! Nobody had ever heard the song Mona Lisa sung so beautifully!

He had talent(天赋) he was sitting on! He may have lived the rest of his life as a no-name piano player in a no-name bar. But once he found, by accident, that he could sing well, he went on working hard and became one of the best-known singers in the US. His name was Nat King Cole.

You, too, have skills and abilities. You may not feel that your talent is great, but it may be better than you think. With hard work, most skills can be improved. Besides, you may have no success at all if you just sit on your talent.

小题1:The lady asked the player to sing a song because _____.

A.she had paid him for this

B.she knew him very well

C.she wanted to have a change

D.she enjoyed his singing小题2:Nat King Cole succeeded because _____.

A.the lady helped him a lot

B.he caught the chance

C.he continued to play in the bar

D.he stopped playing the piano小题3:The words "sit on" in the passage probably mean"

A.参加

B.搁置

C.开发

D.展示小题4:Which could be the best title for the passage?

A.Sing in the Bar

B.Achieve Success in Life

C.Never Lose Heart

D.Find Your Hidden Talent

判断题