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Christmas bird – watching is popular in ...

 

Christmas bird – watching is popular in the U.S.A. When the holiday season comes, some Americans are likely to watch and count birds in the sky with great interest every day. This activity began in the early part of the last century. It has a one-hundred-year history. At that time, there was a so-called “holiday hunting” custom. In order to celebrate the holiday, the hunters went out to kill birds and beasts. By 1900, there were 27 bird lovers who decided to count birds instead of killing birds. Since then, Christmas bird-watching was held every year. It has been continued to the present.

There were 42000 people who took part in the bird-watching last Christmas, from December 16 the year before to January 3 next year. They were in the United States and Canada, central America, south America and the Caribbean, watching and counting birds in the sky. The whole viewing area was divided into 1600 points. Each birdwatcher was responsible for 25 meters, and was required to write down the types and quantities of birds within 24 hours.

A birdwatcher described what he had watched vividly in his diary—“ When I looked up, I saw a beautiful ‘landscape’ in the sky: Red-crowned cranes(丹顶鹤) were driving up in cunning wedges that split the air. They were so neatly arranged, coordinating their movements. I was excited and breathtaking. Interestingly, the “human” shape(人字行) always maintains 110° ” .

“Why do red-crowned cranes choose to use ‘human’ shape when flying in formation?” He continued, “In my opinion, there are four reasons: first, the ‘human’ shape can make red-crowned cranes use increasing air which is produced by each other’s wings when they are swinging in the sky. It can increase the glide time and save physical ability. Second, the ‘human’ shape will enhance communication among the birds. The orders and the relevant information issued by the lead bird can be conveyed to each member in this migratory group unimpeded, accurately, rapidly and conveniently. Third, such a formation will help to find the birds left behind because of feeling run down as fast as possible, so that the young, the weak, the sick birds can get everyone’s help and encouragement. Finally, the ‘human’ shape shows not only beauty but also unity. It can give enemies a deterrent.They will be terrified and did not dare to attack the birds.The migration security of the birds will be ensured.”

Environmental experts admired and evaluated Christmas bird-watching highly. They pointed out that it made perfect sense. On the one hand it could enhance the human awareness of environmental protection. On the other hand it could provide first-hand information on birds.

1.When did Christmas bird – watching begin?

       A.Sometime during Christmas holiday.            B.At the beginning of 20th century.

       C.In the early 19 th century.                          D.Since there was Christmas Day

2.What do bird – watchers do when they are bird – watching?

       A.They kill birds and beasts.                          B.They watch birds and beasts.

       C.They watch and count birds.                      D.They look at the sky and write diaries.

3.The following are all reasons for red – crowned cranes flying in “human” shape except      .

       A.they can help each other and ensure their safety

       B.they can communicate with each other in order to reduce tiredness.

       C.they can make use of the air produced by each other’s wings.

       D.they can look stronger in case they come across enemies

4.This passage consists of five paragraphs. Please arrange the five main ideas of the paragraphs in order of their appearance in the passage.

    a. How the bird – watchers divided their watching task and what was done.

       b. How Christmas bird – watching came into being.

       c. Christmas bird – watching is of great importance environmentally and scientifically.

       d. A Christmas bird – watcher watched and was amazed by red – crowned cranes.

       e. Red – crowned cranes fly in “human” formation for quite good reasons.

       A.a – b – c – d – e B.b – c – e – d – a C.b- a – d – e – c   D.b – d – e – a – c

 

1.B 2.C 3.B 4.C   
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That little “a” with a circle curling around it that is found in E – mail addresses is most commonly referred to as the “at” symbol.

Surprisingly though, there is no official, universal name for this sign. There are dozens of strange terms to describe the "@" symbol.

Before it became the standard symbol for electronic mail, the "@" symbol was used to represent the cost of something or how heavy something is. For instance, if you purchased 6 apples, you might write it as 6 apples "@" $1.10 each.

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The actual origin of the symbol remains a mystery. History tells us that the @ symbol came from the tired hands of the Middle Ages. During the Middle Ages before the invention of printing machines, every letter of a word had to be copied with great efforts by hand for each copy of a published book. The monks that performed these long, boring copying duties looked for ways to reduce the number of individual strokes (笔画) per word for common words. Although the word “at” is quite short to begin with, it was a common enough word in text and documents so that those monks thought it would be quicker and easier to shorten the word “at” even more. As a result, the monks changed the shape of “t” into a circle to surround “a”, thus leaving out two strokes in the spelling “t”. 

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       A.How “at” developed into @.                  B.How @ came into being.

       C.How monks invented @.                      D.How people wrote the cost of something.

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Tired and hungry, two boys walked painfully and difficultly into a big city on October 16, on their feet that had just carried them 300 kilometers.

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20.A. success              B. victory             C. hope                       D. aim

 

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