问题 选择题

与家兔吃植物的生活习性相适应的消化系统特点有(  )

(1)门齿发达;

(2)犬齿锐利;

(3)臼齿宽阔;

(4)消化道长;

(5)消化道短;

(6)盲肠粗大.

A.(1)(2)(4)(6)

B.(2)(3)(4)(6)

C.(1)(3)(4)(6)

D.(2)(3)(5)(6)

答案

家兔是草食性动物,与其食性相适应,家兔的牙齿分为门齿和臼齿,无犬齿,门齿长在上下颌的中央部分,形状像凿子,适于切断食物;臼齿长在上下颌的两侧,有宽阔的咀嚼面,适于磨碎食物;家兔的消化管很长,并且有特别发达的盲肠,消化食物的面积很大,适于消化植物纤维.

故选:C

阅读理解

GERALD Christian is in Grade 8 at Ridge Road Middle School in North Carolina, US. She is a member of her school basketball team. Late last month, the 14-year-old faced a big problem. Her mother lost her job. She thought she couldn't pay the $ 50 fee for the city's sports meet this year.

Christian was not the only one who had this problem. Some other middle school players in the city had the same problem.

That's why famous NBA player Michael Jordan gave $ 250, 000 to the city earlier this month. He wanted to help the poor students. Jordan said: "I know there are kids who get an education by playing sports. We need to keep sports alive for them."

Christian was shocked. "Really? I can't believe Michael did that for us. These days, I go to bed thinking about it and I wake up thinking about it," she said. "Now the problem is over. "

Christian wanted to say "thanks" to Jordan. "Michael, thank you for giving me the chance to show myself. I will do my best at the meet.

小题1:The underlined word "shocked" means ________.

A.moved

B.surprised

C.worried

D.afraid小题2:Which of the following is NOT true according to the passage?

A.Christian was a middle school student.

B.The students will have a sports meet.

C.Few of the players could pay the fee.

D.Christian's mother lost her job last month.小题3:Christian thanked Jordan because he helped her ________.

A.to get a chance to show herself

B.to become a basketball player

C.to go on her study at school

D.to win the basketball match

填空题