英语周报2022--2022高二课标11答案

第二节One possible versionFinally, as his sob quieted, his mother pulled back to look athim. " Rex, take the bird to Mr. Blake and tell him what happened.You will never have peace if you dont face him. Mr. Blakedeserves to know the truth she said with a firm look. The walk toMr. Blake's house was difficult. Leaving his mother in the yardRex stepped to the front door with the dead turkey. He knockedhoping Mr Blake wouldnt answer. But the door openedHi, Mr: blake, Rex handed him the dead bird. When he toldthe whole story of how he killed the turkey by mistake, Rex lookedat the ground, too frightened to look up there was a momentssilence and then Mr. Blake said, Thats all right. We'll eat it fordinner today. A smile appeared on his face. Rex couldnt believewhat he had heard. As he ran home he felt as if a rock had beenlifted from his shoulders. He realized that doing the right thing wastruly easy in the end

18.(1)山顶面积小,保存水分条件差;土层较薄,保水性差;风力较大,阳光充足,蒸发量大,导致山顶较干旱,发育了耐旱的硬叶植被。(6分)(2)沟谷地势低,地表径流汇集,水分充足;沟谷地形封闭;光照相对较弱,蒸发量较小,有利于发育喜湿的季雨林。(每点2分,任答2点得4分)(3)在丹霞地貌的发育过程中,顶部受流水侵蚀,水土流失;(2分)沟谷流水沉积,土层堆积,水土汇集,从而引起水土垂直分异,最终导致植被类型的垂直分异。(2分)【解析】第(1)题,依据图示信息,丹霞地貌山顶植被类型由常绿阔叶林变为常绿硬叶矮林或灌丛,说明山顶水热条件发生了变化。硬叶说明山顶水分条件差,原因是山顶面积小,保存水分条件差;土层较薄保水性差;风力较大,阳光充足,蒸发量大,导致山顶较干旱,发育了耐旱的硬叶植被。第(2)题,丹霞地貌底部沟谷地带发育季雨林说明沟谷地带水热条件好,较为湿润,原因是沟谷地势低,地表径流汇集;沟谷地形封闭,光照相对较弱,蒸发量较小,水分充足,有利于发育喜湿的季雨林。第(3)题,流水作用不同影响了山顶和沟谷的水土条件,具体是丹霞地貌的发育过程中,顶部受流水侵蚀,水土谷流水沉积土层维积,水士汇集从而引起水要直分异,导致植被类型的垂直分异。

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