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小数英语的知识点

发布时间: 2024-04-03 01:54:09

A. 鍒濅腑鑻辫璇娉曪细鍒嗘暟銆佸嶆暟銆佸皬鏁板拰锏惧垎鏁拌〃绀烘硶

銆 #鑻辫璧勬簮# 瀵艰銆戞㈣繋阒呰 钥 缃戯紒

銆銆涓銆佸垎鏁扮殑琛ㄧず娉

銆銆鍒嗘暟鐢卞熀鏁拌瘝鍜屽簭鏁版瀯鎴悫斺斿垎瀛愮敤锘烘暟璇嶏纴鍒嗘瘝鐢ㄥ簭鏁帮纴鍒嗗瓙瓒呰繃钬1钬濇椂锛屽垎姣岖敤澶嶆暟锛歛 [one] sixth(1/6), two thirds(2/3), three fifths()3/5)

銆銆銆愯存槑銆(1) 1/2 阃氩父璇讳綔 a [one] half锛屼竴鑸涓嶈讳綔a second銆

銆銆2. 1/4 鍙璇讳綔 a [one] fourth锛屼篃鍙璇讳綔 a [one] quarter銆

銆銆3. 鍒嗗瓙瓒呰繃钬1钬濆垎姣崭箣镓浠ョ敤澶嶆暟鍙浠ヨ繖镙风悊瑙o细钬滀笁鍒嗕箣浜屸濆嵆涓や釜(two)涓夊垎涔嬩竴(third)锛屾棦铹舵槸涓や釜钬滀笁鍒嗕箣涓钬濓纴闾b滀笁鍒嗕箣涓钬濆綋铹惰佺敤澶嶆暟锛屽嵆鐢╰hirds銆

銆銆4. 鍦ㄦ暟瀛︿笂锛屼负浜嗙亩娲佽捣瑙侊纴鍒嗗瓙鍜屽垎姣嶅潎鍙鐢ㄥ熀鏁拌瘝锛屽叾闂寸敤浠嬭瘝over锛3/4 璇讳綔three over four(瀵逛簬姣旇缉澶嶆潅镄勫垎鏁伴氩父閲囩敤姝よ绘硶)

銆銆5. 甯﹀垎鏁扮殑璇绘硶锛氩湪鏁存暟涓庡垎鏁颁箣闂寸敤and杩炴帴锛歠ive and two thirds

銆銆浜屻佸嶆暟镄勮〃绀烘硶

銆銆琛ㄧず鍊嶆暟镞堕氩父鍊熷姪half, double, twice, three times绛変箣绫荤殑璇嶏细

銆銆Half (of) the apples are bad. 涓鍗婅娴鏋沧槸鍧忕殑銆

銆銆His homework is not yet half done. 浠栫殑浣滀笟杩樻病瀹屾垚涓鍗娿

銆銆He eats twice what I eat. 浠栫殑椋熼噺鏄鎴戠殑涓ゅ嶃

銆銆姣旇缉浠ヤ笅涓夊彞锛岃槠铹惰〃杈惧舰寮忎笉钖岋纴浣嗗惈涔夌浉钖岋细

銆銆1. This rope is three times as long as that one. 杩欐牴缁冲瓙鏄闾f牴镄勪笁鍊嶉暱銆

銆銆2. This rope is three times longer than that one. 杩欐牴缁冲瓙鏄闾f牴镄勪笁鍊嶉暱銆

銆銆3. This rope is three times the length of that one. 杩欐牴缁冲瓙鏄闾f牴镄勪笁鍊嶉暱銆

銆銆绗(1)鍙ュ拰绗(3)鍙ョ殑镒忔濇瘆杈冩竻妤氾纴浣嗙(2)鍙ュ父瀹规槗璇瑙o纴链変汉璁や负瀹冧笌鍏朵粬涓ゅ彞镒忔濅笉钖岋纴搴旂悊瑙d负钬滆繖镙圭怀瀛愭瘆闾f牴缁冲瓙闀夸笁鍊嵝濓纴浣嗙粷澶у氭暟璇娉曞﹀跺苟涓嶈繖镙疯や负锛岃屾槸璁や负浠ヤ笂涓夊彞镒忔濈浉钖屻

銆銆涓夈佸皬鏁扮殑琛ㄧず娉

銆銆涓庢眽璇涓镙凤纴灏忔暟镣瑰墠镄勬暟鎸夋櫘阃氩熀鏁拌瘝镄勮绘硶璇伙纴灏忔暟镣瑰悗镄勬暟鎸夊崟涓鏁板瓧涓涓璇诲嚭銆傚皬鏁扮偣钖庣殑0阃氩父璇讳綔oh锛屾湁镞朵篃璇讳綔nought鎴杬ero锛屽皬鏁扮偣璇讳綔point锛歰ne point five six(1.56), ten point three oh five

銆銆銆愯存槑銆戣澶т簬钬1钬濈殑灏忔暟淇楗扮殑钖嶈瘝瑕佺敤澶嶆暟锛屽傝 1.3 meters锛屼笉璇1.3 meter;鍗充娇鏄琚灏忎簬钬1钬濈殑灏忔暟淇楗帮纴钖嶈瘝涔熼氩父鍙浠ョ敤澶嶆暟锛歄ne centimeter equals 0.3937 inches. 1铡樼背绛変簬0.3937鑻卞搞

銆銆锲涖佺栌鍒嗘暟镄勮〃绀烘硶

銆銆锏惧垎鏁扮敱锘烘暟璇(鎴栧皬鏁)鍜岀栌鍒嗗彿(%)缁勬垚锛岀栌鍒嗗彿(%)璇讳綔 per cent锛歠ifteen percent(15%), ero) point six percent(0.6%)

銆銆銆愯存槑銆戠栌鍒嗘暟钖庢帴钖嶈瘝镞舵湁镞剁敤浠嬭瘝of锛屾湁镞朵笉鐢锛30% of the students(30%镄勫︾敓)锛宎 30% chance(30%镄勬妸鎻)銆备袱钥呯殑鍖哄埆鏄锛氩悗鎺ヤ粙璇峯f镞讹纴percent 涓哄悕璇嶏纴of琛ㄧず鏁翠綋涓镄勯儴鍒;涓嶆帴浠嬭瘝of镞讹纴percent 涓哄舰瀹硅瘝(姝ゆ椂涓嶈〃绀烘暣浣扑笌閮ㄥ垎镄勫叧绯)锛屽啀姣旇缉锛6 percent of the interest=鍒╂伅涓镄勭栌鍒嗕箣鍏锛宎t 6 percent interest=鎸夌栌鍒嗕箣鍏镄勫埄鎭銆