【七年级的英语阅读理解题,正确率要求90%以上,Today,therearemorethan100kindsofdogsintheworld.Manypeopleliketohavedogsastheirpets.Dogsarefriendsofmanbecausetheyarelovelyandtheyarefaithfultotheirmasters.Dog】

　　七年级的英语阅读理解题,正确率要求90%以上,

　　Today,therearemorethan100kindsofdogsintheworld.Manypeopleliketohavedogsastheirpets.Dogsarefriendsofmanbecausetheyarelovelyandtheyarefaithfultotheirmasters.

　　Dogscandoalotofworkforman.Theyplaywithus.Theyhuntwithus.Theyalsokeepdoorforus.Butlongago,dogsallovertheworldwerewild(野生的).

　　Alldogshavethesameancestor.Peoplebelievethatadog’sancestormaybeawolf.Otheranimals,suchasthefox,camefromthisancestor,too.Millionsofyearsago,manbegantofeedandtrainwilddogs.Thestrongdogsbecameworkinganimals.Workingdogshadmanykindsofjobs.Theycouldhelppeopletopullheavythings.Theylearnedtokeepaneyeonthesheepandothersmallanimals.Theycouldhelppeopleinthewar(战争).Somedogswerenotstrong.Buttheycouldhelpmanhuntforgame.Otherdogswerethebestaspets.

　　（）15.Peoplelikedogsbecause________.

　　A.theyareonlyourpetsB.theyarewild

　　C.theycouldplaytricksD.theyarelovelyandfaithful

　　（）16.Theunderlinedwordancestormeans_______.

　　A.朋友B.敌人C.祖先D.家人

　　（）17.Accordingtothepassage,awolfmaybea_______ancestor.

　　A.man’sB.dog’sC.fox’sD.dogandfox’s

　　（）18.DogsappearedonEarth______.

　　A.hundredsofyearsagoB.thousandsofyearsago

　　C.millionsofyearsagoD.notlongago