2023-2022英语周报高二课标第38期答案,我们目前整理分享关于2023-2022英语周报高二课标第38期答案及其参考答案,2如需答案 请关注微信公众号：趣找答案/直接访问www.qzda.com(趣找答案)
∴,第二节.书面表达Dear.Ferry,∵,Bi:wI'm,writingtoteHyou'somethingaboutread-i.ing.Weallknowthatreadingisyeryimportantto,,everyone:,,It.'not.only:helps'rus'getinformationquicklybutalsoenablesustoachievemoreFirst,weshouldtakedifferentskillstoreaddifferentarticles.Forexample,wecanusefast-readingtoreadnewspapersormagazines.Itsaveserxourtimeandhelpsusgetusefulinformation,Sec-ond,weshouldprepareanotebooktotakenotesandmakecomments.Andinthisway,wecanunB#derstandthematerialsbetter.Lastbutnotleast,Pi-weshouldreadmoretopracticeIbelieveifyoufollowmysuggestionsabove及youcangreatlyimproveyourreading因HopingtohearfromyousoonYoursLiHua
20.(1)证明:设点P,Q的坐标分别为(x1,y),(x2,y),直线l的方程为my=x-4,y2=4x联立方程消去x后整理为y2-4my-16=0,可得y+y=4m,yy2164分my=r4,故到一2一1-1,可得,一x+y=0,故OP1…………7分(2)解:由(1)有,一MXO=1x1=xx1=16.…………………12分OPIXO
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