9．Rocky Hurt and Ethan Wilson were playing football in their front yard in Marietta．Suddenly a woman they had never met ran out of her house shouting to them to call an ambulance．That woman was Susanna Rohm．Her 12-week-old baby seemed to stop breathing．She was so scared that she couldn't find her cell phone． so she had decided to rush outside to ask for help．
After getting their parents to make the call，the two boys followed their mother to see if they could do anything to help．And help they did!As Susanna was trying to do CPR（心肺復蘇術） on her baby．young Rocky came in and told her 8he was doing it all wrong．Instead he asked her to use two fingers，push on
the chest 5-10time*．tilt（傾斜 ） the baby's head．plug（堵�。� the nose and then do a mouth-to-mouth resuscitation （復蘇 ） by breathing into the baby's mouth．
Luckily for him and the baby．Susanna accepted hi*advice for even a second and came a loud cry from the baby l Soon the doctors came and the baby was sentto hospital．
The most amazing part of this 8tory is that neither boy has attended a CPR class．Instead．they learned it all．by carefully reading the posters on the walk of their school hall．And，while they are now being called as heroes and even interviewed on national television．neither really cares．They are just glad to have
saved the baby's life!"Thanks to the posters on the walls，they could save the kid!"their teacher said to the reporter proudly．
45．What did Susanna ask Rocky and Ethan to do in a hurry？A
A．Call an ambulance for her baby．
B．Take care of her baby al home．
C．Help her to find her cell phone．
D．Play football in from of her house．
46．How did Rocky and Ethan learn CPR？D
A．They used to go to the hospital to learn from the doctors．
B．They often listened to the radio and kept it in their mind*．
C．They usually watched the medical care programmes on TV
D．They read the posters about it on the walls of their school．
47．Which of the following is TRUE according to the passage？C
A．Rocky and Ethan often attended CPR classes．
B．Susanna didn't know anything about CPR at all．
C．Rocky taught Susanna to do CPR correctly．
D．Rocky's mother did CPR for Susanna's baby．
48．We can know from the last paragraph thatB
A．Rocky and Ethan were invited to report about CPR on TV．
B．Rocky and Ethan had benefited from their school culture．
C．Rocky and Ethan were famous for making posters al school
D．Rocky and Ethan both cared about being called heroes．
