问题 选择题

下列不属于双子叶植物的是(    )

A.花生

B.高粱

C.大豆

D.绿豆

答案

答案:B

题目分析:子叶植物和双子叶植物都属于种子植物中的被子植物,都能产生种子,单子叶植物的种子有一片子叶,有胚乳,叶脉多为平行脉,双子叶植物的种子有两片子叶,无胚乳,叶脉多为网状脉,花生、大豆、绿豆的种子都有两片子叶,无胚乳,叶脉都为网状脉,因此都属于双子叶植物,高粱的种子只有一片子叶,有胚乳,叶脉都为平行脉,因此属于单子叶植物。

点评:此题为基础题,熟练掌握单子叶植物和双子叶植物的主要特征,仔细分析选项中的植物的特点,即可正确解答。

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.                       

单项选择题