题目

下面关于声现象的配对中，错误的是 A． “ 闻其声，知其人 ”—— 发声体不同，音色不同 B． “ 长啸一声，山鸣谷应 ”—— 次声波传播很远 C． “ 震耳欲聋 ”—— 声音响度大 D．用超声波清洗眼镜 —— 声波可以传递能量 答案：B【详解】 A．音色是指声音的品质与特色，不同物体发声的特点不同，就是音色不同，故 A 正确，不符合题意； B． “ 长啸一声，山鸣谷应 ” 是指声音的反射，回声现象，和次声无关，故 B 错误，符合题意； C． “ 震耳欲聋 ” 是指声音响度大，故 C 正确，不符合题意； D．声音可以传递信息和能February 14th, Valentine’s Day(情人节), is a complicated but interesting day. First of all, Valentine’s Day is not a holiday from work. No one gets a day off. In many countries it is observed by sending cards to your friends and candy or flowers to your husband or wife if you’re married, or to your boyfriend or girlfriend if you’re not married. In Japan, some girls even give their fathers chocolates.Why is this holiday for people in love called Valentine’s Day?One explanation comes from a Christian man whose name was something like “Valentine”. He lived at a time when the Roman Emperor refused to allow any Roman soldiers to get married for any reason. Many couples came to Valentine to be married. So he would secretly marry them in a Christian ceremony. He was discovered and put in prison by the Emperor. One tradition says that he wrote notes to his friends by marking on leaves and then throwing them out of the window of his prison. The leaves were shaped like a heart. Valentine was killed on February 14th and Valentine’s Day recalls his tragic death.On Valentine’s Day, American elementary school children make or buy Valentine cards, write the name of a classmate on them, and take them to school and put them in a special Valentine’s Day box. And then on that day the box is opened, the cards are taken out and given out.1.Which of the following is true about Valentine’s Day?A. It is observed by sending flowers to one’s husband or wife.B. Children in Japan give their fathers chocolates.C. It is a legal holiday in many countries.D. People send candy to each other.2.The man called Valentine was put in prison because ________.A. He secretly got married in a Christian ceremonyB. He helped people get married when love was not allowedC. He helped Roman soldiers get marriedD. He wanted to kill the Roman Emperor3.So he would secretly marry them in a Christian ceremony. “marry” is closest in meaning to ________.A. Which priest is going to marry them? B. She has married off all her daughters.C. I’m glad Hubert married a girl of spirit. D. At present she doesn’t intend to marry.4.People celebrate Valentine’s Day _________.A. to take a day off B. in memory of ValentineC. to show their love D. both B and C5.American school children don’t _______ on Valentine’s Day.A. buy Valentine cards B. make cards for their teachersC. give each other Valentine cards D. put their cards in a Valentine’s Day box