问题 选择题

将颗粒完整、饱满的种子分成甲、乙两组,在25℃左右下分别播种,甲组种在肥沃湿润的土壤里,乙组种在贫瘠湿润的土壤里,这两组种子的发芽情况是(   )

A乙先发芽     B甲先发芽    C同时发芽     D都不发芽

答案

答案:C

种子萌发的外界环境条件是充足的空气、适宜的温度和一定的水分,与土壤的肥沃程度无关,所以两组种子会同时萌发,只不过在发芽后种在肥沃的土壤中的长成的植株比贫瘠的土壤中的要健壮些。

阅读理解

On June 6th, 2012 Tiangong-1 welcomed its first guests, the Shenzhou Ⅸ manned spacecraft(载人飞船). The Shenzhou Ⅸ has two male astronauts and one female astronaut. At that time, Liu Yang, a thirty-three year-old woman, became the first Chinese woman in space.

Joining the People’s Liberation Army (PLA) Air Force in 1997, Liu Yang became an experienced pilot after flying safely for 1,680 hours. In 2010, she became an astronaut because of her good job.

“When I was a pilot, I flew in the sky. Now that I am an astronaut, I will fly in space. This will be a much higher and farther flight. I always couldn’t help wondering: What would the Earth look like from outer space?” Liu said.

In June 2012, Liu took Shenzhou Ⅸ to the space as China’s first female astronaut. “I have full confidence,” Liu said before the task. “There are many foreign female astronauts that have been into space. Men and women have their own advantages in carrying out space tasks. They can encourage each other and better complete their task.

However, the difficulty of her training has not affected her life’s pleasure. “I love children and I love life. I love reading, especially novels and history books. I am also a great cook. To be with my family is one kind of happiness, but to fly is another kind that people can’t experience.”

“I am grateful to the motherland and the people. I feel honoured to fly into space on behalf of(代表) millions of female Chinese citizens. ” Liu said after coming back to the Earth safely.

小题1:Liu Yang worked as an astronaut when she was ________ years old.

A.18

B.33

C.31

D.25小题2:From the passage, we know Liu Yang is very________.

A.quiet

B.confident

C.beautiful

D.safe小题3:The main idea of the fifth paragraph________.

A.Liu Yang is a good wife and mother

B.Liu Yang enjoy reading novels and history books

C.Liu Yang loves her job as well as her family

D.Liu Yang has to work hard every day小题4:Which of the following is NOT true according to the passage?

A.There were three astronauts in the Shenzhou Ⅸ manned spacecraft

B.Liu Yang had been a pilot before becoming an astronaut.

C.Liu Yang was the first Chinese woman astronaut who had been into space.

D.Liu Yang thinks she can do better than the male astronauts in the space.小题5:The best title of the passage is _______.

A.The Shenzhou Ⅸ Manned Spacecraft

B.The First Chinese Female Astronaut

C.Love Work and Family

D.How to Achieve Your Dream?

单项选择题