1．Big cats have existed on the earth for millions of years，though scientists aren't sure exactly how long．But a new study indicates that a skull（顱骨） of a snow leopard（豹） relative that was recently unearthed is 4.4million years old．That makes it the oldest big cat fossil（化石） ever found．
A team of US and Chinese scientists unearthed the skull in Tibet．This creature is not a direct ancestor to big cats，but it is closely related to the snow leopard，study leader Jack Tseng told the Associated Press．The fossil lends evidence to the belief that big cats existed in Asia and spread out from there．
Big cats are at the top of the food chain and have few predators of their own．Big cats include snow leopards，clouded leopards，tigers and lions．Based on genetic judgements，most scientists believe they first existed in Central Asia．But previously，the oldest known big cat fossil was 3.6million years old and found in Africa．
The new fossil findings were published in the November 13 issue of the science journal Proceedings of the Royal Society B：Biological Sciences．Tseng and his team were fossil hunting in the Himalayas in 2010when they discovered some bones，including the buried cat skull．The researchers were able to determine its age by studying the surrounding rocks and soil．The skull indicates that the animal was about the size of a clouded leopard，which can grow up to 50pounds．In 2012，the team returned to unearth more cat bones．
David Polly from Indiana University told the Associated Press that the fossil is"convincingly older than the current record holder"．He added that there could be even older big cat fossils in the Tibetan plateau to uncover．

24．What does the newly unearthed skull proveA？
A．Big cats might have their origins in Asia．
B．The oldest fossil is 4.4million years old．
C．The snow leopard is the oldest big cat．
D．The skull is of big cats'direct ancestor．
25．What does the underlined word in Paragraph 3 meanB？
A．relatives．
B．enemies．
C．partners．
D．protectors
26．How do the researchers know the skull's ageD？
A．By measuring its size and forehead．
B．By examining other bones around it．
C．By studying its chemical composition．
D．By exploring the rocks and soil around it．
27．Where was"the current record holder"in the last paragraph foundB？
A．Asia．
B．Africa．
C．America．
D．Australia．

分析 一項(xiàng)新的研究表明，最近出土的一個(gè)大概來(lái)源于400多萬(wàn)年前的像豹子的頭骨，使人們發(fā)現(xiàn)了古老的大型貓科動(dòng)物化石．本文講述的是科學(xué)家們對(duì)此化石的研究與對(duì)大型貓科動(dòng)物歷史的一些猜測(cè)．

解答 24．A．細(xì)節(jié)理解題．根據(jù)文章第二段"The fossil lends evidence to the belief that big cats existed in Asia and spread out from there"，可知，新的研究證明大型貓科動(dòng)物最早存在于亞洲．故選A．
25．B．詞義猜測(cè)題．根據(jù)原句"Big cats are at the top of the food chain and have few predators of their own"，可知，大型貓科動(dòng)物處于食物鏈的頂端，很少有自己的 predators．可推測(cè)，食物頂端的天敵比較少．因此"predators"是天敵，捕食者之意．結(jié)合選項(xiàng)，"enemies"是敵人之意．故選B．
26．D．細(xì)節(jié)理解題．根據(jù)文章第四段"The researchers were able to determine its age by studying the surrounding rocks and soil"，可知，研究人員根據(jù)它周?chē)膸r石及土壤來(lái)判斷頭骨的年齡．故選D．
27．B．細(xì)節(jié)理解題．"the current record holder"意為"目前的記錄保持者"．根據(jù)文章第三段"But previously，the oldest known big cat fossil was 3.6 million years old and found in Africa"，可知，原來(lái)記錄中發(fā)現(xiàn)的最古老的化石來(lái)自非洲．故選B．

點(diǎn)評(píng) 本文為人文地理類(lèi)閱讀．此類(lèi)文章解釋說(shuō)明文居多．說(shuō)明文的解題關(guān)鍵在于抓住文章第一段內(nèi)容，通常該部分就是文章的中心思想．說(shuō)明文是對(duì)事物的形狀、性質(zhì)、特征、成果或功用等進(jìn)行介紹，解釋或闡述的文章．把握所說(shuō)明事物的特征和本質(zhì)是理解說(shuō)明文的關(guān)鍵．說(shuō)明事物特征的方法很多，主要有定義法、解釋法、比較法、比喻法、數(shù)字法、圖表法、引用法和舉例法等．

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科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解

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科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解

10．Many people focus on physical fitness，but few know that brain fitness is also something you can work on．In fact，you can exercise your brain as often as you work out your arms or abs--and the results can be positive and empowering．It's helpful to think of your brain as you work out a muscle．To improve your brain，you can't simply repeat the same exercises over and over．Just as lifting a two pound weight will no longer challenge you，so will repetitive exercises such as crosswords or Sudoku．Once you master easy exercises，you must move on to harder ones in order to push your brain-like your muscles-to a new level．
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科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解

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科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解

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科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解

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科目：高中英語(yǔ) 來(lái)源： 題型：填空題

8．I have always enjoyed reading．Since I was a child I have wanted to be an author．That is （61）whyI studied Online-Journalism with focus on Online-Public Relations for the last three years．Therefore I had to read a（62）lot．My university had a well-kept digital library．At home I could check if the books I need for class were available on line．Nevertheless actually going to the library and（63）searching（search） in the Media section was more （64）effective（effect）．I spent quite a few study hours in the library looking for interesting books for my studies．Additionally，I with my fellow students，（65）spent（spend） a lot of time there sitting on the couch and chatting．
For my studies I had to read books about （66）entertainment（entertain），public relations，journalism，ethics in media and countless （67）othertopics．Sometimes the educational reading could get very exhausting．I remember the（68）classes（class） of Prof．Peter Seeger，which inspired me so much．We discussed the news and topics （69）covered（cover） by the media．I could easily join every conversation and talk with （70）highly（high） educated people about international and regional politics，and social injustices，just because of reading．Until today I have kept reading routine I started at that time．

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科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解

20．Trip 1 Black Bear Count
There have been several fires in this area in the last few years and the Office of Na-tional Parks is not sure how many black bears have survived．Some bears have been seen since the fires，and the Office has asked for volunteers to help count them．The entire trip will last three hours．Bookings essential．
Cost：free When：May 8
Trip 2  Garland Valley
Bring your binoculars（雙筒望遠(yuǎn)鏡）and lunch for this walk in a beautiful area of the Blue Mountains．Garland Valley is close to the town of Garland but is also part of the National Park．A lot of wild animals live in this area，including many rare birds．This is a great walk for bird-lovers．The trip lasts four hours．Bookings essential．
Cost：﹩15     When：May 8，May 15
Trip 3  Flashlight Adventure
Put on some warm clothes，bring a flashlight and come for a night walk along the Dungog Valley．A guide will lead the tour．Many of the animals you see on this trip can only be seen at night．The guide will tell you about the habits of the animals you see．Numbers are strictly limited on night trips，so be sure to book early．This walk lasts two and a half hours．
Cost：﹩12   When：May 8，May 15，May 22
Essential Equipment：
●Please bring enough water and food for all walks．
●Wear good walking shoes-no high heels or sandals．
●Wear a hat for day walks．
●Dress warmly for night walks．
●Children must be accompanied by an adult．
●Make sure your flashlight works well and bring extra batteries for night walks．
●Follow all instructions from guides during the walks．The mountains can be danger-ous．
Booking：
Bookings for the above trips can be made by telephone at 893-4847 or on the Inter-net www．bluemountaintour．com

66．Trip l is free most probably becauseC．
A．there have been several fires in the area
B．it lasts for a very short time
C．you must do some helping job on this trip
D．black bears are not rare animals
67．Trip 2 offers you a great opportunity toB．
A．have lunch in the valley
B．watch rare birds
C．count wild animals
D．work for the National Park
68．Which of the following is NOT necessary for Trip 3？D
A．Good walking shoes．    
B．Food and water．
C．A flashlight．    
D．A hat．
69．If you want to take all the trips but would not tire yourself out，you'd better takeAfirst．
A．Trip l    B．Trip 2    C Trip 3    D．a(chǎn)nother trip
70．Which of the following would be the best title for the passage？D
A．Wild animals in the National Park  
B．Hunting in the Great Mountains
C．Great Tips for Great Trips    
D．Discovery Trips in the Blue Mountains．

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