A
(2017·江苏启东中学高二上月考)
Withonlinecourses，anyonecanacquireknowledgeinanyfieldofinterestforfree.Allyouneedisacomputer，laptoporsmartphone，Internetconnectionandaselfmadeschedule.Youcanevengetacertificateoncompletingthecourse.
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Udemy
Itsgoalistopromotetheworldofeducationbyenablinganyonetolearnonline.Itseekstodramaticallychangeeducationbyinvitingmillionsofexpertsworldwidetoteachandsharewhattheyknow.Whetheryouwanttolearnexcel，business，academics，thearts，health，musicortechnology，thereisacomprehensivecourseforyou.Seemoreathttps：//udemy.com
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iTunesU
Ifyou’reastudentwhousesAppledevices，youwillbehappytoknowthatyouhaveaccesstoiTunesU，whichgivesyouaccesstodifferenteducationalcoursesfromallleadinguniversitiesforfree! DidyoudreamofstudyingatMIT，Oxford，Yale，orCambridge? Thisisyourchancetolearnvarioussubjectsfromthebestcollegesanduniversitiesintheworld.Learnmoreathttps：//iTunesU.com
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Skillfeed
Ifyouarelookingtolearninganewskill，orimprovingonyourskillsinPhotoshop，orHTML，itoffersunlimitedaccesstohighqualityvideocoursesfromaworldwidecommunityofinstructors.Youhaveamonth’sfreetrial，afterwhichyouwillpayamonthlyfeetogainunlimitedaccesstoallcourses.Seemoreathttps：//skillfeed.com
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AcademicEarth
Ithaslinkedtoover750onlinecoursesand8,500individualonlinelectures，givingstudentsofallagesaccesstocollegecoursestheymayotherwiseneverexperience.Whetherlearningexistingcoursework，orlearningforthesakeoflearning，anyonehasthefreedomtolearnattheirownpacefromworldfamousexperts，withoutbeingchargedmore.Learnmoreathttp：//academicearth.com
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UCBerkeley
Itofferscoursesinbioengineering，Japanese，legalstudiesandpublichealth.Sincetheyarerecordingsofactuallectures，theylacklecturenotesandextramaterials.However，eachcoursehasaudiorecordingsoflecturesviaiTunesorvideorecordingsoflecturesviaYouTube.Learnmoreathttps：//ucberkeley.com
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21.LearnerswhochooseSkillfeedneedto.
A.equipthemselveswiththeabilitytousethecomputer
B.paysomefeeiftheywanttocontinueafteramonth
C.havesomeknowledgeofthedesignofwebsite
D.learntouploadtheirownhighqualityvideo
答案 B
解析 细节理解题。根据文章中Skillfeed下面的句子“Youhaveamonth’sfreetrial，afterwhichyouwillpayamonthlyfeetogainunlimitedaccesstoallcourses.”可知，选择Skillfeed的学习者如果想在一个月后继续学习，需要付一些费用。故选B。
22.WecanlearnfromthepassagethatAcademicEarth.
A.offerscollegecoursesatthelearners’convenience
B.hasmanylecturesgivenby8,500lecturers
C.providescollegecoursesmainlytoyoungmen
D.chargeslearnersnothingforanycourse
答案 A
解析 细节理解题。根据文章中AcademicEarth下面的句子“Ithaslinkedtoover750onlinecoursesand8,500individualonlinelectures，givingstudentsofallagesaccesstocollegecoursestheymayotherwiseneverexperience.”可知，AcademicEarth为了方便学习者，提供了一些大学课程。故选A。
23.IfyouwanttoimproveyourskillofJapaneselanguage，youcanvisit.
A.https：//skillfeed.com
B.https：//iTunesU.com
C.https：//udemy.com
D.https：//ucberkeley.com
答案 B
解析 细节理解题。根据文章中UCBerkeley下面的句子“Itofferscoursesinbioengineering，Japanese，legalstudiesandpublichealth.”和下面的网址“https：//ucberkeley.com”可知，如果你想提高日语技能，可以访问https：//ucberkeley.com。故选B。
