用上表示声音的词语，句子就生动形象多了，你也来试试。

例：树木野草发出“沙沙”的声音。

①尽管西北风____地吹着，我们还是按时去上学。

②远处传来几声____的狗叫。

③考试了，教室里很安静，只听到同学们的笔在纸上____写字的声音。

④小溪里的水____地流着。

Once there lived an old man in a town. He always forgot a lot of things. So his wife always had to say to him，“Don’t forget this.”
One day he went on a long way alone. Before he left home，his wife said，“Now you have all these things. You need them on your way. Take care of your things on the way.” He went to the station. He bought a ticket and got on the train with it.
About an hour later，the conductor began to see the tickets. He came to the old man and said，“Will you please show me your ticket?” The old man looked for his ticket in all his pockets but he could not find it. He was very worried.“I can’t find my ticket. I really bought a ticket before I got on the train ”said the old man.
“I think you are right. I believe you bought a ticket. All right，you don’t have to buy another ticket ”said the conductor kindly. But the old man still(仍然) looked worried and said sadly，“You don’t know why I’m worried. If I don’t find my ticket，I can’t remember my station. Where am I going? ”

口技演员能够模仿许多乐器和动物的声音，它主要是要模仿动物和乐器发出声音的（  ）