19．Would you like to keep free ebooks handy to read on your phone or tablet？Several websites offer ebooks you can download without spending any money at all．
Amazon
Amazon is filled with free ebooks you can download．Amazon's Best Seller list is divided into Paid and Free．Check out the free sections in dozens of genres （種類），each listing the Top 100 free ebooks so you will have a lot of choices．This list changes constantly，based on how well the books are"selling"and whether they become or remain free．
Over Drive
Over Drive is an ebook service that works with local libraries to lend free ebooks to readers．It includes a wide collection of ebooks，from new sellers to classics．Sometimes there is a wait for a library ebook，just as there can be for a popular print book．
Project Gutenberg
Started in 1971，Project Gutenberg has over 53，000 free ebooks．Project Gutenberg ebooks are available to download in the U．S．but may be restricted in other countries if they are still protected by copyright．
Apple iBooks
You can read free ebooks on your iPhone and iPad using the iBooks app．Head to the iTunes App Store and click the"Free Books"category．You can see a list of the top best sellers．Click"Get"to download those books to your iPhone or iPad．
Audible
Audible lets you download audio （有聲） books．You can get．a(chǎn) free audiobook when you sign up for a membership．Audible is currently available for listeners in the US，the UK，Canada，India，and Australia．
Finally，when you find a free ebook you want to read，get it right away．Often the offer is open only briefly．If you wait too long，you may discover the book now has a price attached．
 
21．What is the author's purpose of writing the passage？D
A．To introduce some new best-selling ebooks．
B．To show the advantages of some ebook services．
C．To encourage readers to buy more ebooks online．
D．To recommend some websites to download free ebooks．
22．What can we learn from the text？C
A．The ebooks on Amazon are always free to read．
B．Library print hooks arc available on Over Drive．
C．IPhone users can access Apple iBooks via the iBooks app．
D．Only in die US can Project Gutenberg ebooks be downloaded．
23．Which is a must if you want to download audio books from Audible？B
A．Profession．
B．Registration．
C．Background．
D．Birthplace．

分析 本文是一篇廣告布告類閱讀，屬于廣告，本文主要介紹了TrackR的功能，使用方法以及價錢，購買方式，目的是勸說讀者購買TrackR．

解答 21．C．細(xì)節(jié)理解題．根據(jù)It's called TrackR．It is a state-of-the-art tracking device the size of a quarter．It's changing the way we keep track of the important things in our lives．以及上文內(nèi)容可知，TrackR可以幫你尋找丟失的物品．故選C．
22．B．細(xì)節(jié)理解題．根據(jù)It's easy!Install the free TrackR app on your smartphone，connect the app to your device and you're ready to go!Simply attach TrackR to whatever you want to keep track of．可知，TrackR可以通過手機(jī)應(yīng)用在線使用．故選B．
23．D．推理判斷題．根據(jù)文章內(nèi)容可知，本文主要介紹了TrackR的功能，使用方法以及價錢，購買方式，目的是勸說讀者購買TrackR．故選D．

點(diǎn)評 本文是一篇廣告布告類閱讀，題目涉及多道主旨大意題，細(xì)節(jié)理解題，推理判斷題．做題時學(xué)生應(yīng)仔細(xì)閱讀原文，把握文章主要內(nèi)容，聯(lián)系文章上下文內(nèi)容并結(jié)合所給選項(xiàng)含義，從中選出正確答案，一定要做到有理有據(jù)，切忌胡亂猜測．

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科目：高中英語 來源： 題型：閱讀理解

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The millimeter-long worm，called C．elegans，is often used in medical studies because its life is only about two weeks long．Seventy percent of its DNA is the same as human DNA．
Chandran Sabanayagam，a scientist with the University of Delaware，built a microgravity simulator（模擬器）to test how C．elegans would perform in the actual zero gravity of space．
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47．A．moneyB．foodC．luggageD．drink
48．A．helpB．saveC．functionD．manage
49．A．uglyB．politeC．dirtyD．crazy
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11．Baron Pierre de Coubertin was a Frenchman．At his time sports were not taught in French schools．De Coubertin believed that sports should go hand in hand with studies．He had an idea．His idea was to begin the Olympicsall over again．
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The modern Olympic games have many foot races and field sports programs．The longest race in the games is called marathon．
Before the start of the Olympic Games，runners carry lighted torch （ 火炬） through many nations towards the stadium（運(yùn)動場）where the games will be held．These sportsmen are from different countries．Yet they work together to carry the Olympic torch．It is passed from runner to runner．When the last runner enters the stadium，he or she places the torch in a special（專門的） basin filled with oil．It catches fire．It is then，only then，that the Olympic Games can begin．
The Olympic flame（火焰）burns throughout the games．It is the flame of peace．
 
27．Before 1896 French schools didn't teach．D．
A．maths B．History C．physics D．sports
28．De CoubertinC．
A．was the first man to start the Olympic Games
B．believed that sports were less important than studies
C．helped start the modern Olympic Games
D．failed to begin the modern Olympic Games
29．"Marathon"in this passage isB．
A．a(chǎn) jumping contest（比賽）
B．a(chǎn) foot race
C．field sports
D．a(chǎn) boxing（拳擊）match
30．Which of the following is NOT true？A
A．After the start of the Olympics，the Olympic flame is put out．
B．The torch is carried from runner to runner through many countries．
C．Runners who carry the torch can be men or women．
D．The Olympic Games don't begin until the basin of oil catches fire．

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