英语周报2022高考仿真真题答案

A2l.D。根据第二段中的“..you're invited to engage in unique online experiences inspired from in-person film festivals-including panel discussions with filmmakers.”可确定答案。22.D。根据第五段中的“…and David and Erin Leaverton,a Republican couple who travel to all fifty states to find out whatdivides us,are just a few of the characters profiled in the film”可确定答案。23.C。根据第四段中的“Kiss the Ground is a groundbreaking film that demonstrates how regenerating the world's soils cancompletely and rapidly stabilize Earth's climate,restore lost ecosystems and create abundant food supplies.KISSTHE GROUND涉及环境问题。根据第五段中的“The Reunited States is a powerful documentary that follows theunsung heroes on the difficult journey of bridging our political and racial divides.”以及最后一段中的“.who shareimportant and long-forgotten knowledge of humanity's eternal()and complex connection with Nature and eachother,and what it really means to be human.”可确定THE REUNITED STATES和THE TWELVE涉及人类社会问颗

19.(1)证明：因为△ACB是腰长为2√2的等腰直角三角形，所以AC⊥BC.………1分因为DE⊥平面ABCD,BCC平面ABCD,所以DE⊥BC.2分又DE∥CF,所以CF⊥BC.…………3分又AC∩CF=C,AC,CFC平面ACF,所以BC⊥平面ACF.…4分所以BC⊥AF.…5分(2)解：因为△ACB是腰长为2√2的等腰直角三角形，所以AC=BC=2√2，AB=√/AC BC2=4.所以AD=BCsin∠ABC=2W2Xsin45°=2，CD=AB-BCcos∠ABC=4-2W2×c0s45°=2.所以DE=EF=CF=2.由勾股定理得AE=√AD十DE2=2√2，…分因为DE⊥平面ABCD,ADC平面ABCD,所以DE⊥AD.又AD⊥DC,DE∩DC=D,DC,DEC平面CDEF,所以AD⊥平面CDEF.所以V几何体EFABCD=V四棱锥A-CDEF十V三棱锥F-ACBCD·DE·AD 3·号AC,BC·CF13×2×22 日××2×22×232163

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