求初一下册比较难一点的数学练习册~~主要是提高 跪求初一下册的较难的数学练习题；或是初中英语大量的听力句子！
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《轻巧夺冠》，《奥数急先锋》我都在用
绛旓細1.濡傛灉涓涓杈瑰舰鐨勫唴瑙掑拰绛変簬澶栬鍜岀殑2鍙2鍒嗕箣1鍊嶏紝閭ｄ箞杩欎釜澶氳竟褰㈡槸銆7 銆曡竟褰紝杩囪繖涓杈瑰舰鐨勪竴涓《鐐瑰彲鐢汇4 銆曟潯瀵硅绾裤2.姝ｄ簲杈瑰舰鐨勬瘡涓涓閮芥槸銆108 銆曪紝鑰屼竴涓懆瑙掍负銆360 銆曪紝360涓嶆槸108鐨勬暣鏁板嶏紝鎵浠ョ敤姝ｄ簲杈瑰舰銆斾笉鑳 銆曢摵婊″湴闈3.姝ｅ杈瑰舰涓湁鐨勫彲浠ョ敤鏉ラ摵璁惧湴闈紝鏈夌殑鍒欎笉...
绛旓細1銆佷笁瑙掑舰ABC锛岃A=60掳锛屸垹B銆佲垹C鐨勮骞冲垎绾緽E涓嶤D浜や笌鐐筄姹:OE=OD.鍦˙C涓婂彇鐐笹锛屼娇寰桞D=BG 鍥犱负鈭燗=60掳 鎵浠モ垹BOC=120掳 鍥犱负鈭燚OB=鈭燛OC(瀵归《瑙)鎵浠モ垹DOB=鈭燛OC=60掳(360-120)/2 灏AS寰椻柍DBO鈮屸柍BOG 鎵浠O=G0 鈭燚OB=鈭燝OB=60掳 鎵浠モ垹GOC=鈭燘OG=60掳 鍐嶇敱ASA寰椻柍OGC...
绛旓細1.(-3)^1=-3 (-3)^2=9 (-3)^3=-27 (-3)^4=81 (-3)^5=243 鎵浠ワ紙-3锛塣n鐨勪釜浣嶆暟瀛楁槸3 9 7 1 寰幆 锛屼笖濂囨暟娆℃椂涓鸿礋鏁 锛-3锛塣2005涓鸿礋鏁 2005/4=501鈥︹1 涓綅鏁板瓧涓3 25^n鍚勪綅姘歌繙涓5 鎵浠^2005+b^2005鐨勬湯灏炬暟瀛楁槸-3+5=2 2.P=锛11^9*9^9锛/(9^9...
绛旓細1.濡傚浘锛孉D鏄笁瑙掑舰ABC鐨勮骞冲垎绾匡紝P鐐瑰湪AD涓婏紝PE//AB,,涓斾氦BC浜庣偣E锛孭F//AC锛屼笖浜C浜庣偣F锛岀偣D鍒癙E鐨勮窛绂讳笌鐐笵鍒癙F鐨勮窛绂荤浉绛夊悧锛熶负浠涔 2.鍦ㄤ笁瑙掑舰ABC涓紝AB=AC锛屽懆闀夸负16鍘樼背锛孉C杈逛笂鐨勪腑绾緽D鎶婁笁瑙掑舰ABC鍒嗘垚鍛ㄩ暱宸负2鍘樼背鐨勪袱涓笁瑙掑舰锛屾眰涓夎褰BC鐨勯暱 3.鑻=-3锛寉=-2,鏄...
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绛旓細1.绛旀鏄2 -3鐨刵娆℃柟鐨勬湯灏炬暟瀛椾互3锛9锛7锛1鈥﹀懆鏈熸у嚭鐜 2005闄4浣1 鏁-3鐨2005娆℃柟鏄釜璐熸暟锛屾湯浣嶆槸3 25鐨2005娆℃柟鍗5鐨4010娆℃柟锛屾槸涓鏁帮紝鏈綅鏄5锛5鐨勪换浣曟鏂规湯浣嶉兘鏄5锛夋墍浠5-3=2 2.娆茶瘉P=Q 鍗99^9/9^99=11^9/9^90 鍗99^9=11^9*9^9 涓婂紡鏄剧劧鎴愮珛锛屽懡棰樺緱璇 ...
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