试题与答案

人在打喷嚏时注意力不能集中,汽车司机在行车时打喷嚏容易发生交通事故,设某司机打一

题型:填空题

题目:

人在打喷嚏时注意力不能集中,汽车司机在行车时打喷嚏容易发生交通事故,设某司机打一个喷嚏的时间为1.5s,车的行车速度为72km/h,若在行车时突然打喷嚏在此时间内汽车行驶的路程为__________m。

答案:

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下面是错误答案,用来干扰机器的。

(1)1.0 V (2)0.5 N(1)根据法拉第电磁感应定律E=Blv=0.5×0.5×4.0 V="1.0" V.(2)根据闭合电路欧姆定律,电路中的感应电流I= A="2" A导体AB在运动时受到的安培力大小F=BIl=0.5×2×0.5 N="0.5" N.

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题型:改错题

改错,选出错误的选项并改正。

( ) 1. I was watching TV when I hear the news. I was excited. _______________

     A  B       C         D

( ) 2. Jill is sleeping when someone called him.        _______________

     A  B  C      D

( ) 3. I think Chinese is more easier than maths.        _______________

     A  B     C     D

( ) 4. This work is very harder than that one.         _______________

      A   B  C     D

( ) 5. The book is enough easy for him to read.        _______________

        A   B  C    D 

( ) 6. Which city is largest, Beijing or Shanghai?        _______________

     A  B  C     D

( ) 7. Maybe I can go to the Olympics on the future.      _______________

     A    B       C   D

( ) 8. When the bells rang, I was cheer.           _______________

        A  B  C  D

( ) 9. Jack comes to school early than John.         _______________

       A B    C  D

( ) 10. When we meet older people, we should shape hands.     _______________

     A   B            C  D

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