When many people see birds cleaning their feathers, they attribute it to vanity on the part of the bird. But, in reality, what they are doing is maintaining their wings, the instruments that they depend on for safe flight. If a bird’s wings are not in perfect condition, the bird either won’t be able to fly or won’t be able to control its flight. That is why after a long flight and even throughout the day, you will see them cleaning their feathers.
Most birds, if they get a chance, will take a bath at least once a day. They do this to get rid of the dust that has accumulated in their feathers throughout their flight s during the day. In dry or desert areas, birds will not always be able to find water in which to bath, but they still need to clean their feathers. What many birds will do is to take dust baths. They will roll around in dust until it covers their feathers. They will stand up, shaking the dust out, and then clean their feathers with their beaks (鳥嘴) as usual.
Baths are important for another reason. During the course of the day and night, many parasites (寄生蟲) are attracted to birds. Bugs, mites, fleas and so on will try to reach birds and suck from their blood. Daily baths help to keep the parasites to a minimum.
Some birds, especially those that spend a lot of time in or around water, have skin glands (皮膚腺) that produce oil. After bathing, these birds will squeeze the glands to spread the oil over their wings to keep them free of water.
If you are a bird lover and have bird houses in your yard, it can be good to go to the extra step, providing a bird bath. Once the birds in your neighborhood discover it, you will be surprised at how popular it becomes as they periodically stop by to take their daily bath.
小題1:What’s the passage mainly about?
A．How birds clean themselves.B．What birds enjoy doing.
C．Why baths matter so much to birds.D．What bird lovers should do.
小題2:What does the underlined part in Para 1 probably mean?
A．Most people think it good for birds to clean their feathers.
B．Most people show much interest in how birds clean themselves.
C．Most people believe that birds’ keeping themselves clean is necessary.
D．Most people think birds’ cleaning their feathers of no practical significance.
小題3:According to Para 3, birds’ feather cleaning _____.
A．helps keep them healthyB．keeps them free of any parasite
C．makes them more attractiveD．helps them relax enough
小題4:In the last paragraph, the author further reminds us that _____ .
A．we should love birds as much as possible
B．birds enjoy cleaning themselves by bathing
C．we can be good bird lovers by bathing birds
D．birds like to come close to the people in a yard

小題1:C
小題2:B
小題3:A
小題4:A
文章介紹了文章介紹了洗澡及梳理羽毛對鳥兒的重要性，并解釋了原因，號召我們要為鳥兒做更多的事情。
小題1:C 主旨大意題。文章介紹了洗澡及梳理羽毛對鳥兒的重要性，并解釋了原因。
小題2:B 猜測句意題。根據(jù)下一句in reality, what they are doing is maintaining their wings說明鳥兒梳理羽毛是為了維護翅膀。they attribute it to vanity on the part of the bird.中的vanity指那些漂亮但無用的東西，故這句話指的是很多人對于鳥兒如何梳理羽毛感興趣，卻不清楚鳥兒為什么這樣做。故B正確。
小題3:A 段落大意題。在第三段中提及了鳥兒的羽毛中會有很多的寄生蟲和各種各樣的有害的東西，所以鳥兒清潔羽毛是為了保持羽毛的健康，故A正確。
小題4:A 推理題。在最后一段中提出我們要為鳥兒做更多的事情，要盡可能地多愛鳥，故A正確。
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Save the Animals
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Students often complain（抱怨）their teachers give them too much homework . Now , two reports show that in America this is not true .
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The Brookings report also talks about a study from 1995 . American students do almost the least homework among twenty countries . Students in France , Italy and South Africa spend more than two hours on homework .
The Rand report says there was only one time when homework greatly increased in America .During the early 1960s , Americans were not happy when the former Soviet Union (前蘇聯(lián))became the first country to reach space . People thought it was necessary to improve education .
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A．firstB．secondC．thirdD．forth
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The idea of the genome as a book is not, strictly speaking, even a metaphor．It is true to a great extent．A book is a piece of digital information, written in one-directional form and defined by a code that translates a small alphabet of signs into a large dictionary of meanings through the order of their groupings．So is a genome．The only difference is that all English books read from left to right, while some parts of the genome read from left to right while some from right to left, but never both at the same time．
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The genome is a very clever book, because in the right condition it can both photocopy itself and read itself．
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B．Only from right to left．
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A．to focus on the differences between the two
B．to lay emphasis on the similarities between the two
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D．to give an exact description of the human genome

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