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Whenyouseewildgeeseheadingsouthforthewinterflyingalongina"V"formation(队形),youmightconsiderwhatsciencehasdiscoveredastowhytheyflythatway.Aseachbirdflaps(拍打)its1itcreatesanupliftfort

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  When you see wild geese heading south for the winter flying along in a "V" formation (队形) ,you might consider what science has discovered as to why they fly that way. As each bird flaps (拍打) its 1       it creates an uplift for the 2        immediately following. By 3        in "V" formation the whole flock 4        at least 72 % greater flying range than if each bird flew on its own.

  People who 5       a common direction and a sense of community can get where they are going more quickly and 6       because they are travelling on the push of one another.

  When a wild goose 7       out of formation it suddenly feels the drag and resistance (阻力) of trying to go it 8       and quickly gets back into formation to take advantage of the 9       power of the bird in front.

  If we have as much sense as a wild goose we will 10       in formation with those people who are 11        in the same direction as we are.  

  When the head wild goose gets tired it rotates back in the wing and another wild goose flies point.

  It is sensible to 12       turns doing demanding jobs whether with people 13       with wild geese flying south. Wild geese honk (叫) from behind to 14       those up front to keep up their speed.

  What message do we give when we honk from 15       ? Finally when a wild goose gets sick or is  16        by gunshot and falls out of formation two other wild geese fall out with that wild goose and follow it down to lend help and 17.        They stay with the 18           wild goose until it is able to fly or until it dies and only then do they launch out on their own or with another formation to 19        their group. If we have the 20       of a wild goose we will stand by each other like that.

  May we all be " honkers" of encouragement to each other and to our friends and families!

1. A. arms   B. feathers   C. wings   D. hands

2. A. insect   B. chick   C. animal   D. bird

3. A. running   B. flying   C. arranging   D. queuing

4. A. adds   B. changes   C. attains   D. decreases

5. A. enjoy   B. share   C. possess   D. occupy

6. A. steadily   B. wisely   C. easily   D. wildly

7. A. reaches   B. warns   C. keeps   D. falls

8. A. alone   B. indeed   C. too   D. though

9. A. reserving   B. lifting   C. beating   D. saving 

10. A. bring   B. turn   C. stay   D. take 

11.A. moving   B. choosing   C. directing   D. heading 

12. A. take   B. put   C. place   D. think 

13.A. and   B. or   C. besides   D. so 

14.A. advise   B. allow   C. encourage   D. show 

15.A. south   B. east   C. opposite   D. behind 

16. A. damaged   B. interested   C. wounded   D. amazed 

17. A. direction   B. goal   C. hope   D. protection 

18.A. fallen   B. sick   C. weak   D. painful 

19.A. put up with   B. catch up with   

 C. come up with   D. end up with 

20. A. sense   B. soul   C. interest   D. role

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[文章大意]本文通过讲述南下过冬的雁群以"v"形队列飞行的好处来告诉人们,要和同一阵营中的人们互相鼓励并且互相帮助,让生活更容易。 1. C由上文的"As each bird flaps..."可知,鸟拍打它的翅膀。故选C项...