问题 选择题

2012年国庆期间约有5450000人次在西安旅游,5450000用科学数法表示为(  )

A.5.45×102

B.5.45×104

C.5.45×106

D.5.45×107

答案

将5450000用科学记数法表示为:5.45×106

故选:C.

完形填空
完形填空。
     How do you feel when you have to make a report in front of your classmates? What about when you
go to a birthday party? Do you get    1    shy?
     Shyness means feeling nervous or     2    when you’re round other people. Everyone experiences(体验)this shyness     3     they grow up. Most people have red faces and talk in broken sentences when they are in the center of attention. It’s OK if it takes you a while to feel yourself again when you go to a new place or meet strangers.     4    , everybody gets a little shy sometimes. It’s just a case(事)of how much. But many teenagers think that they hate themselves and that they won’t fit in the future at come point.
     Stop the negative(消极的)thoughts about yourself. If shyness doesn’t keep you     5    something you want to do, being shy isn’t a very big problem. Some experts say shy people are not only cleverer, but also better at working with others, because they think more and talk     6    . Some great people in history were shy, too.
     You see, being shy isn’t all    7   . But remember not to let good chances   8   just because of it ! Your
shyness will     9   . When you grow up year after year, you’ll become brave enough to speak to anyone.
But now, you need practice! If you have to sing a song at a party, just do it! There’s nothing to be afraid
of !
     Remember, though you’re shy, you do not lack in(缺少)  10  .Cone on,our shy friends!
( )1. A. true
( )2. A. comfortable
( )3. A. as
( )4. A. What is worse
( )5. A. to do
( )6. A. much
( )7. A. good
( )8. A. go down
( )9. A. past
( )10. A. confidence
B. real
B. frightened
B. since
B. In fact
B. doing         
B. more
B. bad
B. go over
B. pass
B. confident
C. really      
C. proud        
C. by          
C. For example  
C. from doing                                         
C. less        
C. wonderful    
C. go by        
C. passed      
C. confidently  
单项选择题