问题 填空题

2012年3月19日,一只狼在袭击了山东滕州两名村民后,被当地警方击毙。几天后,山东滕州警方又活捉了一只“白色母狼”。但有网友见到该动物的新闻照片后,发帖称是他家丢失的宠物狗。到底是狼还是狗?一时众说纷纭。

狗和狼到底有些什么区别呢?嘉明同学决定通过上网及查阅资料的方式寻找答案。他检索到以下资料,请你分析:

资料1:狗(家犬)和狼的分类地位

资料2:①研究发现,狗和狼的骨骼结构极其近似。②现已发现的狼化石最早可追溯到40万年前。③狗起源于狼。④通过对狗和狼的基因检测发现,中东地区狼和狗的基因组成相似度最高。

(1)根据资料1可以推测,狗和狼隶属于同一个______。A.纲     B.科     C.种     D.亚种 (2)资料2中,属于事实的有_______,属于观点的是______。(请填编号) (3)狼的体细胞内有39对染色体,如果这只“白色母狼”被确认为家犬,则它的染色体数目是_______。 A.39条 B.78条 C.78对             D.无法判断

(4)综合资料1和资料2,用_________的方法鉴别山东警方活捉的“白色母狼”,可以得到最可靠的答案。

答案

(1)ABC 

(2)①②④;③

(3)B

(4)基因检测

阅读理解

判断下列句子是否与短文内容相符,相符的填“T”,不相符的填“F”。

     You may know the song Happy Birthday very well. But do you know who wrote this song and for whom

it was written?

     Let me tell you a story. About one hundred years ago, there was a girl in the USA. She loved children very

much and wrote many songs for children. One of them was the song Good Morning To You. The song was

very popular at that time among children, but not all grown-ups (成年人) knew it.

      The girl was very poor. Once her friends invited her to a little child's birthday party. She felt happy but

sad because she had no money to buy a present for him. Finally she decided to sing the song Happy Birthday

in the melody (曲调) of Good Morning to You for the little boy.

      When her friends heard the song at the party, they were very happy. "How wonderfully she is singing!

We have not heard this song before. It's a special present," said someone. And they learned to sing it together.

     Later, the song became very popular throughout the world. People like it because it's simple and friendly.

(     )1. Happy Birthday is an old song. Nobody knows who wrote the song Happy Birthday.

(     )2. The song Happy Birthday is a song from America.                                                    

(     )3. The melody of Happy Birthday comes from the melody of Good Morning to You.   

(     )4. The girl first sang the song for a little child as a birthday present.                             

(     )5. The girl knew the song would be popular before she came to the party.                       

名词解释