[简答题]

阅读材料，回答问题。一新教师面向校内上公开课，教学内容是《经济生活》中的"依法纳税"。在分析"依法纳税是公民义务"时，列举了很多生活中存在的违反税法的现象，然后又设计了一个情景剧，让学生上台表演，探究学生如何以主人翁的意识关注国家对税收的征管。一名同学扮演小商店的老板，两名同学扮演消费者。教师设计的思路是：两名同学购物后，经一人提醒后索要发票，并借机向店老板宣传税法知识。但两位"消费者"却临场发挥，反复强烈要求先退掉手中的"假货"，双方僵持不下。该教师看了看后面听课的十几位老师，也慌了手脚，片刻思考后，决定终止这场表演，并无奈地说："同学们太厉害了，请先回座位，我们课后继续讨论，好吗？"
问题：请据材料分析该老师的做法是否得当？运用的教学策略如何？

The words "gymnastics" and "gym" come from the Greek language, for it was in Greece that Olympic competitions started. There are also records of gymnastics being performed in China and some other Asian countries. Modem gymnastics began in the 19th century. In 1811 an outdoor gymnastics center for men was opened in Berlin where they could do body-building and exercises on a high bar and other pieces of equipment. At the same time, gymnastics, without equipment, was developed in Sweden as a keep-fit program for schools.
Dance is an important part of training as it prepares you for the types of movements required in gymnastics. One of the aims is to make the body stronger for jumps and turns and for movements of balance. It also helps your body bend forwards, backwards and sideways, and improves the way you hold your body. In competitions women perform some of their exercises to music, so dance, gymnastics and music are all connected.
To become a

有以下程序
#include
main（　）
{ int x;
scanf("%d",&x);
if(x>15)printf("%d",x-5);
if(x>10)printf("%d",x);
if(x>5)printf("%d/n",x+5);
}
若程序运行时从键盘输入12<回车>，则输出结果为（）。

有以下程序
#include
main（　）
{ int s;
scanf("%d",&s);
while(s>0)
{ switch(s)
{ case 1:printf("%d",s+5);
case 2:printf("%d",s+4);break;
case 3:printf("%d",s+3);
default:printf("%d",s+1);break;
}
scanf("%d",&s);
}
}
运行时，若输入1 2 34 5 0<回车>，则输出结果是（）。

男性，69岁。因右上肢疼痛半年余，加重3天于疼痛门诊就诊。患者曾于1年前因"结肠癌"行手术治疗。术后于右上肢行PICC输液治疗。半年后出现右上肢肿胀，移除PICC导管，改到左上肢行PICC。但在一次右上肢稍微用力后出现疼痛，难以忍受，曾口服止痛药物治疗，此后右上肢不敢被触碰，疼痛持续存在，时轻时重，严重时疼痛难忍，呈跳痛、放电样和严重的烧灼样疼痛，影响休息和睡眠。查体可见右上肢前臂肿胀，下臂萎缩，触痛明显，被动体位，活动受限。X线片、骨扫描及磁共振等进一步检查排除骨转移。

"It’s no use，Mum，"said Johnny．"I’m just no good at dancing．"
"You’ve got to keep trying．Tonight will be (16) ，dear．Try a turn with that pretty Lisette．"
Johnny (17) Every Saturday night used to be the best of the week．He and his parents went to the (18) at the Club，where his hero，Alcide，played the accordion(手风琴)with the band．But lately everything had changed．Now that Johnny was older，he was (19) to dance with a girl!
(20) Johnny and his parents arrived at the Club，music had already started．Johnny got up his (21) to approach Lisette．“May I have this dance”Johnny asked．“That’s all right，”said Lisette．Johnny struggled to keep up with Lisette’s (22) steps，but he was always one beat behind her. Then Johnny heard his friend Pierre say, "Look! Johnny has two left feet!" (23) burst from the crowd. Johnny (24) A. ran
B. walked
C. drove
D. cycled