根据题目要求完成下列任务，用中文作答。
下面是一位初中英语教师在语音教学中使用的练习：
Teacher’s instruction:
Look at the words on the blackboard. Tick the word you hear in each sentence I read.
Teacher reads:
I don’t like these sports.
The pots are very dirty.
Look at that white cord on the water.
Mr. Smith was short.
Students tick the words they hear：
A B
spots sports
pots ports
cod cord
shot short
根据上面所提供的教学情境，从下面四个方面作答：
