问题 解答题

花的雌蕊由______、______和子房组成,子房内有______,受精完成后,它可以发育成______.

答案

一朵完整的花的结构包括花柄、花托、花萼、花冠、雄蕊和雌蕊.各自具有不同的作用.花柄对花起支持作用,花托着生花的各个部分,花萼花冠开放之前对花起保护作用,花冠在花开放之后有招引昆虫传粉的作用,雌蕊由花药和花丝组成,花药内生花粉,雌蕊由柱头,花柱和子房组成,子房内生胚珠.传粉受精完成后,花的花萼、花冠、雄蕊和雌蕊的柱头花柱凋落,只有子房继续发育起来,受精卵发育成胚,受精极核发育成胚乳,珠被发育成种皮,胚珠发育成种子,子房壁发育成果皮,整个子房发育成果实.

故答案为:柱头、花柱、胚珠、种子

阅读理解

阅读理解。

     Yao Ming, the center of the Chinese National Men's Basketball Team, served the Houston Rockets in 2002 in NBA. The 2.26m, 120kg center became the first player to come from a foreign team.

     Yao Ming was born in Shanghai in September, 1980. His mother was a center and captain (队长)of

the Chinese National Women's Team. His father played basketball, too.

     Yao Ming is widely known in China. He came to be a very important basketball player in CBA. It's

short for China Basketball Association  (联赛). During the 2000-2001 season, he got 27.1 scores (得分)

for the Shanghai Oriental (东方)Sharks in every match.

     Yao Ming joined the Houston Rockets in October, 2002. He said it was a new start in his basketball

life. He would do his best to learn from the NBA and improve (提高)himself.

     Sport analyst (分析家) Bill Walton said,"Yao Ming has the potential (潜力) the capability (能力) of

changing the future of basketball."

1.The Houston Rockets is the name of a _____ team.

A. table tennis

B. volleyball

C. basketball

D. golf

2.Both Yao Ming's father and mother were _____.

A. football players

B. basketball players

C. the centers of the Chinese National Team

D. the captains of the Chinese National Team

3.Yao Ming _____ in CBA during the 2000-2001 season.

A. does well

B. is good

C. was good

D. did well

4.Yao Ming _____ the Houston Rockets in October, 2002.

A. did his best to join

B. was well-known in

C. became a member (成员)of

D. liked

5.Sport analyst Bill Walton thought Yao Ming was able to _____.

A. learn from the NBA

B. change the future of basketball

C. improve himself

D. became the captain of the Houston Rockets

不定项选择