问题 单项选择题

体育教学中教师的示范不正确的是()。

A.跑步中摆臂动作和腿的后蹬动作用正面示范

B.武术套路动作用背面示范

C.球类运动的持球动作用正面示范

D.比较难的动作采用几个示范面教学

答案

参考答案:A

解析:

由于运动动作的多样性,因此动作示范更要注意“示范面”的问题、示范面是指学生观察示范的视角,也包括示范的速度和距离等要素。示范面有正面、背面、侧面和镜面示范。

(1)正面示范:教师与学生相对站立所进行的示范是正面示范,正面示范有利于展示教师正面动作的要领,如球类运动的持球动作多用正面示范。

(2)背面示范:教师背向学生站立所进行的示范是背面示范,背面示范有利于展示教师背面动作或左右移动的动作,以及动作的方向、路线变化较为复杂的动作,以利于教师的领做和学生的模仿,如武术的套路教学就常采用背面示范。

(3)侧面示范:教师侧向学生站立所进行的示范是侧面示范,侧面示范有利于展示动作的侧面和按前后方向完成的动作,如跑步中摆臂动作和腿的后蹬动作。

(4)镜面示范:教师面向学生站立进行的与同学同方向的示范是镜面示范,镜面示范的特点是学生和教师的动作两相对应,适用于简单动作的教学,便于教师领做,学生模仿。例如做徒手操,开始时学生完成动作是脚左移半步成开立,教师的示范动作与学生的动作相对应,则是右脚右移半步成开立。

单项选择题
阅读理解

阅读理解。

     People know the dangers of fires. It's good for a family to learn how to prepare for a fire. Here are some

suggestions.

     Put a smoke alarm in the house. Smoke from a fire causes the alarm to go off. The alarm makes a loud

sound. The sound tells everyone to leave the house at once.

      Make escape (逃脱) plan. They should know all the ways out of the house. If there is a fire, everyone

follows the plan to get out. Part of the plan is to check all the windows to make sure they can be opened

easily.

     Buy fire extinguishers(灭火器) in the house. Everyone in the family should know how to use them.

     Practice for a fire. They do fire practice because they teach children about fire safety. Ever yone in the

family should know the following fire rules:

     * Don't open a hot door! The fire can grow more quickly if you open the door.

     * Stay close to the floor! Smoke can be more dangerous than the fire. The best air is near the floor

because smoke rises.

     * What will you do if your hair or clothes start to burn? First, Stop! Don't run! The fire burns faster

because of more air. Drop! Fall to the floor. Then roll! Turning over and over will make the fire go out. Put

a blanket(毯子) around you to keep air away from the fire that may still be on you. 

     There are many possible causes for fires. A wise family is ready all the time. If there is a fire, don't forget

to call 119 for help.

1. The writer advises people to do the following to prepare for a fire except that _____.

A. they prepare for a fire  

B. they make escape plans

C. they buy fire extinguishers  

D. they use electrical cookers

2. What are the right steps you should take when your hair or clothes catch fire?

A. Stop, run, roll.

B. Stop, drop, roll  

C. Run, drop, roll

D. Roll, drop, stop

3. What is the best title for this passage?

A. The Dangers of a Fire

B. The Causes of a Fire

C. Learn to Use a Fire Extinguishers

D. Be Ready For a Fire