Question

 Put your hand to the left side of your chest(胸).Try to 1 your heart beating(跳) The heart takes a little 2 after each beat. In boys or girls 3 your age,the heart beats about 90 4 a minute. A 5 heart beats about 70 or 80 times a minute. But the heart beat is 6 in the same person at different times. 7   ，the heart beats 8 while we have sports. It is also faster 9 a person is angry 10 excited. During sleep,the heart beat slows down.
(   ) 1. A. find    B. see   C. feel    D. hear

(   ) 2. A. rest    B. move   C. jump    D. beat

(   ) 3. A. with    B. for   C. in    D. at

(   ) 4. A. minutes    B. times   C. beats    D. seconds

(   ) 5. A. bad    B. good     C. child's    D. grown-up's(成人的)

(   ) 6. A. the same    B. different   C. strong    D. weak

(   ) 7. A. Sometimes    B. But     C. And    D. For example

(   ) 8. A. stronger    B. weaker    C. faster    D. more slowly

(   ) 9. A. when    B. since     C,for     D. after

(   ) 10. A. and    B. or     C. nor    D. both

Answer 1

 1. C心跳只能感觉到。  

 2. A 3. D 4. B 5. D前面讲到学生的心跳次数，这儿指成年人的心跳次数。        

6. B 7. A 8. C 9. A 10. B