问题 综合

读图5-15,完成下列要求。

澳大利亚墨累—达令河流域某农场土地利用图

图5-15

(1)将正确选项的代号填在图5-16中的空白框内,使系统成立(每字母限填一次)。

图5-16

A.秸秆

B.牧草

C.羊粪

D.羊毛、羊肉E.增加土壤肥力

F.调节小麦、绵羊的生产规模

(2)该农场对市场的适应性较            ,收入的波动性较            

(3)该农场种植的冬小麦,收割期在             (填写下列各项的代号)。

①二、三月 ②五、六月 ③八、九月  ④十一、十二月

(4)该地处于            (地形区)的西侧,降水量较            

(5)          成为这里农牧业发展的限制性条件,为此该国修建了            水利工程。

答案

  (1)见图5-17

图5-17

(2)强 小  

(3)④

(4)大分水岭 少

(5)灌溉 东水西调

 第一,分析图中各现象之间的关联,完成生态系统的循环。澳大利亚墨累—达令盆地的混合农场是个良性生态系统,农场内土地交替种植小麦、牧草或休耕,可充分保持麦田肥力;小麦收割后可放牧绵羊,同时麦田提供了作物秸秆,可作为牧羊的饲料;羊粪可成为麦田的肥料、增加土壤肥力;混合农业属商品农业,其小麦、羊毛、羊肉大多以销售为主。第二,这样的农场经营,农民可根据市场的需求来决定多种小麦还是多牧羊,农业生产有很大的灵活性,对市场价格的波动有较强的适应性,农民收入的波动性较小。第三,该农场中农民可有效地利用时间安排农业活动,牧羊活动和耕作活动在一年内可交替进行,南半球季节与北半球正好相反,其小麦收割期在十一、十二月。第四,从墨累—达令盆地所处的位置看,它处于大分水岭西侧,属海洋气流的背风坡,降水较少,灌溉成为这里农牧业发展的限制性条件,为此该国修建了东水西调水利工程。

单项选择题
阅读理解

Everybody has had at least one experience from which he knows the meaning of life.This time, which took place several years ago, but seems as if it just happened.

On an afternoon several years ago, my brother-in-law opened the bottom drawer of my sister's dress and picked out a beautiful skirt."Jan bought this the first time we went to New York, at least 8 or 9 years ago.She never wore it.She was saving it for a special occasion." he said.I guess this was the occasion: it was the funeral (葬礼) of my sister, after her unexpected death.

He took the shirt and put it on bed, with the other clothes we were taking to the funeral.Then he closed the drawer and turned to me, "Don't ever save anything for a special occasion.Every day you're alive is a special occasion."

I'm thinking about his words, and they've changed the way I live my life.I'm spending more time with my family and friends and less time in committee meetings.Whenever possible, life should be a kind of experience to enjoy, not to suffer."Someday" and "one of these days" are losing their importance on my vocabulary.If it's worth seeing or hearing or doing,I want to see and hear and do it now.

Ever since that day, I have been trying very hard not to put off, hold hack or save anything that would add laughter and color to our lives.Every morning when I open my eyes.I tell myself that every day, every minute, every breath, truly is a gift.So cherish every day and find the true meaning of your life.

小题1:Why did Jan buy the beautiful skirt but didn't wear it?

A.She waited for a special occasion to wear it on.

B.She wanted to keep it for someone else.

C.She saved it till she grew up.

D.She would give it to herself as a gift some day.小题2:What does the underlined word "cherish" mean?

A.Treasure.

B.Waste.

C.Own.

D.Save.小题3:From his experience, the author learns that _______.

A.everybody can have a happy life through efforts

B.every day in our lives is worth cherishing

C.enjoying ourselves is the most important thing in our lives

D.everybody will have some things left to do after his death小题4:What does the author write this passage for?

A.To show how to make good use of every day in life.

B.To explain the true meaning of his brother-in-law's words.

C.To tell people to cherish every day and find the meaning of life.

D.To encourage people to waste time and enjoy themselves in life.小题5:What's the best title for this passage?

A.Every Day Is a Gift

B.My Sister Jan

C.What Is the Meaningful Life Like

D.The Most Important Time in Your Life