{"id":570944,"date":"2026-07-28T09:31:05","date_gmt":"2026-07-28T02:31:05","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=570944"},"modified":"2026-07-28T11:15:40","modified_gmt":"2026-07-28T04:15:40","slug":"an-du-la-gi","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/an-du-la-gi\/","title":{"rendered":"\u1ea8n d\u1ee5 l\u00e0 g\u00ec? C\u00e1c ki\u1ec3u \u1ea9n d\u1ee5, t\u00e1c d\u1ee5ng v\u00e0 b\u00e0i t\u1eadp c\u00f3 \u0111\u00e1p \u00e1n"},"content":{"rendered":"

\u1ea8n d\u1ee5 l\u00e0 g\u00ec?<\/strong> \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng bi\u1ec7n ph\u00e1p tu t\u1eeb quan tr\u1ecdng v\u00e0 th\u01b0\u1eddng g\u1eb7p nh\u1ea5t trong ch\u01b0\u01a1ng tr\u00ecnh Ng\u1eef v\u0103n THCS. \u1ea8n d\u1ee5 gi\u00fap c\u00e2u v\u0103n, c\u00e2u th\u01a1 tr\u1edf n\u00ean gi\u00e0u h\u00ecnh \u1ea3nh, h\u00e0m s\u00fac v\u00e0 g\u1ee3i nhi\u1ec1u li\u00ean t\u01b0\u1edfng. N\u1ebfu b\u1ea1n c\u00f2n l\u00fang t\u00fang khi nh\u1eadn di\u1ec7n \u1ea9n d\u1ee5, ph\u00e2n bi\u1ec7t \u1ea9n d\u1ee5 v\u1edbi so s\u00e1nh hay ho\u00e1n d\u1ee5, th\u00ec b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y s\u1ebd gi\u00fap b\u1ea1n n\u1eafm v\u1eefng kh\u00e1i ni\u1ec7m, c\u00e1c ki\u1ec3u \u1ea9n d\u1ee5, t\u00e1c d\u1ee5ng v\u00e0 luy\u1ec7n t\u1eadp v\u1edbi b\u00e0i t\u1eadp c\u00f3 \u0111\u00e1p \u00e1n chi ti\u1ebft.<\/p>\n

\u1ea8n d\u1ee5 l\u00e0 g\u00ec?<\/h2>\n

\u1ea8n d\u1ee5 l\u00e0 bi\u1ec7n ph\u00e1p tu t\u1eeb g\u1ecdi t\u00ean s\u1ef1 v\u1eadt, hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y b\u1eb1ng t\u00ean c\u1ee7a s\u1ef1 v\u1eadt, hi\u1ec7n t\u01b0\u1ee3ng kh\u00e1c c\u00f3 n\u00e9t t\u01b0\u01a1ng \u0111\u1ed3ng (gi\u1ed1ng nhau) v\u1edbi n\u00f3, nh\u1eb1m t\u0103ng s\u1ee9c g\u1ee3i h\u00ecnh, g\u1ee3i c\u1ea3m cho s\u1ef1 di\u1ec5n \u0111\u1ea1t. N\u00f3i c\u00e1ch kh\u00e1c, ng\u01b0\u1eddi vi\u1ebft m\u01b0\u1ee3n m\u1ed9t h\u00ecnh \u1ea3nh quen thu\u1ed9c \u0111\u1ec3 n\u00f3i v\u1ec1 m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00e1c, d\u1ef1a tr\u00ean m\u1ed9t \u0111i\u1ec3m chung n\u00e0o \u0111\u00f3 gi\u1eefa hai s\u1ef1 v\u1eadt.<\/p>\n

V\u00ed d\u1ee5 trong c\u00e2u ca dao vi\u1ebft theo th\u1ec3 th\u01a1 l\u1ee5c b\u00e1t<\/a>: “Thuy\u1ec1n v\u1ec1 c\u00f3 nh\u1edb b\u1ebfn ch\u0103ng \/ B\u1ebfn th\u00ec m\u1ed9t d\u1ea1 kh\u0103ng kh\u0103ng \u0111\u1ee3i thuy\u1ec1n”<\/em>. \u1ede \u0111\u00e2y, “thuy\u1ec1n” lu\u00f4n di chuy\u1ec3n \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 ch\u1ec9 ng\u01b0\u1eddi con trai (ng\u01b0\u1eddi \u0111i), c\u00f2n “b\u1ebfn” c\u1ed1 \u0111\u1ecbnh \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 ch\u1ec9 ng\u01b0\u1eddi con g\u00e1i (ng\u01b0\u1eddi \u1edf l\u1ea1i ch\u1edd \u0111\u1ee3i). Hai h\u00ecnh \u1ea3nh n\u00e0y c\u00f3 n\u00e9t t\u01b0\u01a1ng \u0111\u1ed3ng v\u1edbi \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a con ng\u01b0\u1eddi, n\u00ean \u0111\u00e2y l\u00e0 \u1ea9n d\u1ee5.<\/p>\n

\u1ea8n d\u1ee5 c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ph\u00e9p so s\u00e1nh ng\u1ea7m, b\u1edfi v\u1ebf \u0111\u01b0\u1ee3c so s\u00e1nh b\u1ecb l\u01b0\u1ee3c b\u1ecf, ch\u1ec9 c\u00f2n l\u1ea1i h\u00ecnh \u1ea3nh d\u00f9ng \u0111\u1ec3 so s\u00e1nh. \u0110\u00e2y l\u00e0 ki\u1ebfn th\u1ee9c n\u1ec1n t\u1ea3ng khi h\u1ecdc v\u1ec1 c\u00e1c bi\u1ec7n ph\u00e1p tu t\u1eeb trong ti\u1ebfng Vi\u1ec7t.<\/p>\n

\"an-du-la-gi-1\"<\/p>\n

C\u00e1c ki\u1ec3u \u1ea9n d\u1ee5 th\u01b0\u1eddng g\u1eb7p<\/h2>\n

Trong ch\u01b0\u01a1ng tr\u00ecnh Ng\u1eef v\u0103n, \u1ea9n d\u1ee5 \u0111\u01b0\u1ee3c chia th\u00e0nh 4 ki\u1ec3u ch\u00ednh. M\u1ed7i ki\u1ec3u d\u1ef1a tr\u00ean m\u1ed9t d\u1ea1ng n\u00e9t t\u01b0\u01a1ng \u0111\u1ed3ng kh\u00e1c nhau gi\u1eefa hai s\u1ef1 v\u1eadt, hi\u1ec7n t\u01b0\u1ee3ng. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y t\u1ed5ng h\u1ee3p \u0111\u1eb7c \u0111i\u1ec3m v\u00e0 v\u00ed d\u1ee5 minh h\u1ecda cho t\u1eebng ki\u1ec3u \u0111\u1ec3 b\u1ea1n d\u1ec5 ghi nh\u1edb v\u00e0 nh\u1eadn di\u1ec7n.<\/p>\n\n\n\n\n\n\n\n
Ki\u1ec3u \u1ea9n d\u1ee5<\/strong><\/td>\n\u0110\u1eb7c \u0111i\u1ec3m<\/strong><\/td>\nV\u00ed d\u1ee5 minh h\u1ecda<\/strong><\/td>\n<\/tr>\n
\u1ea8n d\u1ee5 h\u00ecnh th\u1ee9c<\/td>\nD\u1ef1a tr\u00ean s\u1ef1 gi\u1ed1ng nhau v\u1ec1 h\u00ecnh th\u1ee9c, h\u00ecnh d\u00e1ng b\u00ean ngo\u00e0i gi\u1eefa hai s\u1ef1 v\u1eadt.<\/td>\n“V\u1ec1 th\u0103m nh\u00e0 B\u00e1c l\u00e0ng Sen \/ C\u00f3 h\u00e0ng r\u00e2m b\u1ee5t th\u1eafp l\u00ean l\u1eeda h\u1ed3ng” \u2013 “l\u1eeda h\u1ed3ng” ch\u1ec9 m\u00e0u \u0111\u1ecf c\u1ee7a hoa r\u00e2m b\u1ee5t.<\/td>\n<\/tr>\n
\u1ea8n d\u1ee5 c\u00e1ch th\u1ee9c<\/td>\nD\u1ef1a tr\u00ean s\u1ef1 gi\u1ed1ng nhau v\u1ec1 c\u00e1ch th\u1ee9c th\u1ef1c hi\u1ec7n h\u00e0nh \u0111\u1ed9ng.<\/td>\n“\u0102n qu\u1ea3 nh\u1edb k\u1ebb tr\u1ed3ng c\u00e2y” \u2013 “\u0103n qu\u1ea3” ch\u1ec9 vi\u1ec7c h\u01b0\u1edfng th\u00e0nh qu\u1ea3, “tr\u1ed3ng c\u00e2y” ch\u1ec9 ng\u01b0\u1eddi t\u1ea1o ra th\u00e0nh qu\u1ea3.<\/td>\n<\/tr>\n
\u1ea8n d\u1ee5 ph\u1ea9m ch\u1ea5t<\/td>\nD\u1ef1a tr\u00ean s\u1ef1 gi\u1ed1ng nhau v\u1ec1 ph\u1ea9m ch\u1ea5t, t\u00ednh ch\u1ea5t gi\u1eefa hai s\u1ef1 v\u1eadt.<\/td>\n“Ng\u01b0\u1eddi Cha m\u00e1i t\u00f3c b\u1ea1c” \u2013 “Ng\u01b0\u1eddi Cha” ch\u1ec9 B\u00e1c H\u1ed3, d\u1ef1a tr\u00ean ph\u1ea9m ch\u1ea5t y\u00eau th\u01b0\u01a1ng, che ch\u1edf.<\/td>\n<\/tr>\n
\u1ea8n d\u1ee5 chuy\u1ec3n \u0111\u1ed5i c\u1ea3m gi\u00e1c<\/td>\nD\u00f9ng t\u1eeb ch\u1ec9 c\u1ea3m gi\u00e1c c\u1ee7a gi\u00e1c quan n\u00e0y \u0111\u1ec3 mi\u00eau t\u1ea3 c\u1ea3m gi\u00e1c c\u1ee7a gi\u00e1c quan kh\u00e1c.<\/td>\n“Gi\u1ecdng n\u00f3i ng\u1ecdt ng\u00e0o” \u2013 d\u00f9ng v\u1ecb gi\u00e1c (“ng\u1ecdt”) \u0111\u1ec3 t\u1ea3 th\u00ednh gi\u00e1c (“gi\u1ecdng n\u00f3i”).<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

T\u00e1c d\u1ee5ng c\u1ee7a \u1ea9n d\u1ee5 l\u00e0 g\u00ec?<\/h2>\n

\u1ea8n d\u1ee5 kh\u00f4ng ch\u1ec9 l\u00e0m c\u00e2u v\u0103n, c\u00e2u th\u01a1 tr\u1edf n\u00ean sinh \u0111\u1ed9ng m\u00e0 c\u00f2n l\u00e0m t\u0103ng chi\u1ec1u s\u00e2u \u00fd ngh\u0129a cho c\u00e1ch di\u1ec5n \u0111\u1ea1t. Nh\u1edd nh\u1eefng h\u00ecnh \u1ea3nh c\u00f3 n\u00e9t t\u01b0\u01a1ng \u0111\u1ed3ng, \u1ea9n d\u1ee5 gi\u00fap ng\u01b0\u1eddi \u0111\u1ecdc d\u1ec5 d\u00e0ng c\u1ea3m nh\u1eadn c\u1ea3m x\u00fac, t\u01b0 t\u01b0\u1edfng m\u00e0 t\u00e1c gi\u1ea3 mu\u1ed1n g\u1eedi g\u1eafm. C\u1ee5 th\u1ec3, bi\u1ec7n ph\u00e1p tu t\u1eeb n\u00e0y mang l\u1ea1i c\u00e1c t\u00e1c d\u1ee5ng sau:<\/p>\n

    \n
  • T\u0103ng s\u1ee9c g\u1ee3i h\u00ecnh, g\u1ee3i c\u1ea3m cho c\u00e2u v\u0103n, c\u00e2u th\u01a1, gi\u00fap h\u00ecnh \u1ea3nh tr\u1edf n\u00ean r\u00f5 n\u00e9t v\u00e0 gi\u00e0u c\u1ea3m x\u00fac h\u01a1n.<\/li>\n
  • Di\u1ec5n \u0111\u1ea1t h\u00e0m s\u00fac, c\u00f4 \u0111\u1ecdng, m\u1edf ra nhi\u1ec1u li\u00ean t\u01b0\u1edfng th\u00fa v\u1ecb, gi\u00fap ng\u01b0\u1eddi \u0111\u1ecdc hi\u1ec3u \u0111\u01b0\u1ee3c nh\u1eefng t\u1ea7ng \u00fd ngh\u0129a \u1ea9n sau c\u00e2u ch\u1eef.<\/li>\n
  • L\u00e0m cho l\u1eddi v\u0103n sinh \u0111\u1ed9ng, gi\u00e0u t\u00ednh ngh\u1ec7 thu\u1eadt, th\u1ec3 hi\u1ec7n t\u00ecnh c\u1ea3m v\u00e0 suy ngh\u0129 c\u1ee7a ng\u01b0\u1eddi vi\u1ebft m\u1ed9t c\u00e1ch tinh t\u1ebf, \u1ea5n t\u01b0\u1ee3ng h\u01a1n.<\/li>\n
  • Gi\u00fap ng\u01b0\u1eddi vi\u1ebft b\u00e0y t\u1ecf \u0111i\u1ec1u t\u1ebf nh\u1ecb, k\u00edn \u0111\u00e1o m\u00e0 kh\u00f4ng c\u1ea7n n\u00f3i tr\u1ef1c ti\u1ebfp, t\u1ea1o n\u00ean s\u1ef1 duy\u00ean d\u00e1ng cho l\u1eddi v\u0103n.<\/li>\n<\/ul>\n

    \"an-du-la-gi-2\"<\/p>\n

    Ph\u00e2n bi\u1ec7t \u1ea9n d\u1ee5, so s\u00e1nh v\u00e0 ho\u00e1n d\u1ee5<\/h2>\n

    \u1ea8n d\u1ee5 r\u1ea5t d\u1ec5 b\u1ecb nh\u1ea7m v\u1edbi so s\u00e1nh v\u00e0 ho\u00e1n d\u1ee5 v\u00ec c\u1ea3 ba \u0111\u1ec1u d\u1ef1a tr\u00ean m\u1ed1i li\u00ean h\u1ec7 gi\u1eefa c\u00e1c s\u1ef1 v\u1eadt. \u0110i\u1ec3m m\u1ea5u ch\u1ed1t \u0111\u1ec3 ph\u00e2n bi\u1ec7t n\u1eb1m \u1edf lo\u1ea1i m\u1ed1i quan h\u1ec7 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u00e0 c\u00e1ch tr\u00ecnh b\u00e0y h\u00ecnh \u1ea3nh. B\u1ea3ng so s\u00e1nh d\u01b0\u1edbi \u0111\u00e2y s\u1ebd gi\u00fap b\u1ea1n nh\u1eadn di\u1ec7n ch\u00ednh x\u00e1c t\u1eebng bi\u1ec7n ph\u00e1p.<\/p>\n\n\n\n\n\n\n\n
    Ti\u00eau ch\u00ed<\/strong><\/td>\n\u1ea8n d\u1ee5<\/strong><\/td>\nSo s\u00e1nh<\/strong><\/td>\nHo\u00e1n d\u1ee5<\/strong><\/td>\n<\/tr>\n
    C\u01a1 s\u1edf<\/td>\nN\u00e9t t\u01b0\u01a1ng \u0111\u1ed3ng (gi\u1ed1ng nhau)<\/td>\nN\u00e9t t\u01b0\u01a1ng \u0111\u1ed3ng (gi\u1ed1ng nhau)<\/td>\nQuan h\u1ec7 g\u1ea7n g\u0169i, t\u01b0\u01a1ng c\u1eadn<\/td>\n<\/tr>\n
    C\u00e1ch th\u1ec3 hi\u1ec7n<\/td>\nSo s\u00e1nh ng\u1ea7m, \u1ea9n \u0111i v\u1ebf \u0111\u01b0\u1ee3c so s\u00e1nh<\/td>\nSo s\u00e1nh tr\u1ef1c ti\u1ebfp, n\u00eau r\u00f5 c\u1ea3 hai v\u1ebf<\/td>\nL\u1ea5y d\u1ea5u hi\u1ec7u, b\u1ed9 ph\u1eadn \u0111\u1ec3 g\u1ecdi to\u00e0n th\u1ec3<\/td>\n<\/tr>\n
    T\u1eeb so s\u00e1nh<\/td>\nKh\u00f4ng c\u00f3 t\u1eeb so s\u00e1nh<\/td>\nTh\u01b0\u1eddng c\u00f3 t\u1eeb: nh\u01b0, l\u00e0, t\u1ef1a, gi\u1ed1ng\u2026<\/td>\nKh\u00f4ng c\u00f3 t\u1eeb so s\u00e1nh<\/td>\n<\/tr>\n
    V\u00ed d\u1ee5<\/td>\n“Thuy\u1ec1n v\u1ec1 c\u00f3 nh\u1edb b\u1ebfn ch\u0103ng”<\/td>\n“C\u00f4 gi\u00e1o nh\u01b0 m\u1eb9 hi\u1ec1n”<\/td>\n“\u00c1o n\u00e2u c\u00f9ng v\u1edbi \u00e1o xanh” (ch\u1ec9 n\u00f4ng d\u00e2n, c\u00f4ng nh\u00e2n)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Nh\u01b0 v\u1eady, \u1ea9n d\u1ee5 v\u00e0 so s\u00e1nh c\u00f9ng d\u1ef1a tr\u00ean s\u1ef1 t\u01b0\u01a1ng \u0111\u1ed3ng, nh\u01b0ng so s\u00e1nh n\u00eau r\u00f5 c\u1ea3 hai v\u1ebf c\u00f2n \u1ea9n d\u1ee5 ch\u1ec9 gi\u1eef l\u1ea1i h\u00ecnh \u1ea3nh so s\u00e1nh. Trong khi \u0111\u00f3, ho\u00e1n d\u1ee5 l\u1ea1i d\u1ef1a tr\u00ean quan h\u1ec7 g\u1ea7n g\u0169i (b\u1ed9 ph\u1eadn \u2013 to\u00e0n th\u1ec3, d\u1ea5u hi\u1ec7u \u2013 s\u1ef1 v\u1eadt) ch\u1ee9 kh\u00f4ng ph\u1ea3i s\u1ef1 gi\u1ed1ng nhau.<\/p>\n

    L\u01b0u \u00fd khi s\u1eed d\u1ee5ng v\u00e0 nh\u1eadn di\u1ec7n \u1ea9n d\u1ee5<\/h2>\n
      \n
    • Mu\u1ed1n x\u00e1c \u0111\u1ecbnh \u1ea9n d\u1ee5, h\u00e3y t\u00ecm n\u00e9t t\u01b0\u01a1ng \u0111\u1ed3ng gi\u1eefa h\u00ecnh \u1ea3nh \u0111\u01b0\u1ee3c n\u00f3i t\u1edbi v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng th\u1ef1c s\u1ef1 m\u00e0 t\u00e1c gi\u1ea3 mu\u1ed1n \u00e1m ch\u1ec9.<\/li>\n
    • Khi ph\u00e2n t\u00edch, c\u1ea7n ch\u1ec9 r\u00f5 h\u00ecnh \u1ea3nh \u1ea9n d\u1ee5 l\u00e0 g\u00ec, n\u00f3 ch\u1ec9 \u0111\u1ed1i t\u01b0\u1ee3ng n\u00e0o v\u00e0 d\u1ef1a tr\u00ean n\u00e9t t\u01b0\u01a1ng \u0111\u1ed3ng n\u00e0o \u0111\u1ec3 tr\u00e1nh nh\u1ea7m v\u1edbi ho\u00e1n d\u1ee5.<\/li>\n
    • Kh\u00f4ng n\u00ean l\u1ea1m d\u1ee5ng \u1ea9n d\u1ee5 trong v\u0103n n\u00f3i h\u1eb1ng ng\u00e0y, v\u00ec c\u00f3 th\u1ec3 khi\u1ebfn di\u1ec5n \u0111\u1ea1t tr\u1edf n\u00ean kh\u00f3 hi\u1ec3u, t\u1ed1i ngh\u0129a.<\/li>\n
    • \u1ea8n d\u1ee5 \u0111\u1ea1t hi\u1ec7u qu\u1ea3 cao nh\u1ea5t khi h\u00ecnh \u1ea3nh m\u01b0\u1ee3n v\u1eeba quen thu\u1ed9c, v\u1eeba g\u1ee3i \u0111\u01b0\u1ee3c li\u00ean t\u01b0\u1edfng b\u1ea5t ng\u1edd, s\u00e2u s\u1eafc.<\/li>\n<\/ul>\n

      B\u00e0i t\u1eadp v\u1eadn d\u1ee5ng v\u1ec1 \u1ea9n d\u1ee5 c\u00f3 \u0111\u00e1p \u00e1n<\/h2>\n

      H\u00e3y v\u1eadn d\u1ee5ng ki\u1ebfn th\u1ee9c v\u1eeba h\u1ecdc \u0111\u1ec3 gi\u1ea3i c\u00e1c b\u00e0i t\u1eadp sau. B\u1ea1n n\u00ean t\u1ef1 l\u00e0m tr\u01b0\u1edbc r\u1ed3i m\u1edbi \u0111\u1ed1i chi\u1ebfu v\u1edbi \u0111\u00e1p \u00e1n \u0111\u1ec3 ghi nh\u1edb l\u00e2u h\u01a1n.<\/p>\n

      B\u00e0i 1:<\/strong> X\u00e1c \u0111\u1ecbnh v\u00e0 g\u1ecdi t\u00ean ki\u1ec3u \u1ea9n d\u1ee5 trong c\u00e2u: “Ng\u00e0y ng\u00e0y m\u1eb7t tr\u1eddi \u0111i qua tr\u00ean l\u0103ng \/ Th\u1ea5y m\u1ed9t m\u1eb7t tr\u1eddi trong l\u0103ng r\u1ea5t \u0111\u1ecf”.
      \u0110\u00e1p \u00e1n:<\/em> “M\u1eb7t tr\u1eddi trong l\u0103ng” l\u00e0 \u1ea9n d\u1ee5 ch\u1ec9 B\u00e1c H\u1ed3, thu\u1ed9c ki\u1ec3u \u1ea9n d\u1ee5 ph\u1ea9m ch\u1ea5t<\/strong> (d\u1ef1a tr\u00ean s\u1ef1 v\u0129 \u0111\u1ea1i, \u1ea5m \u00e1p, soi \u0111\u01b0\u1eddng c\u1ee7a B\u00e1c gi\u1ed1ng v\u1edbi m\u1eb7t tr\u1eddi).<\/p>\n

      B\u00e0i 2:<\/strong> C\u00e2u “Gi\u1ecdng n\u00f3i c\u1ee7a c\u00f4 \u1ea5y th\u1eadt ng\u1ecdt ng\u00e0o” s\u1eed d\u1ee5ng ki\u1ec3u \u1ea9n d\u1ee5 n\u00e0o?
      \u0110\u00e1p \u00e1n:<\/em> \u1ea8n d\u1ee5 chuy\u1ec3n \u0111\u1ed5i c\u1ea3m gi\u00e1c<\/strong> \u2013 d\u00f9ng t\u1eeb ch\u1ec9 v\u1ecb gi\u00e1c (“ng\u1ecdt ng\u00e0o”) \u0111\u1ec3 mi\u00eau t\u1ea3 th\u00ednh gi\u00e1c (“gi\u1ecdng n\u00f3i”).<\/p>\n

      B\u00e0i 3:<\/strong> Gi\u1ea3i th\u00edch \u00fd ngh\u0129a \u1ea9n d\u1ee5 trong c\u00e2u t\u1ee5c ng\u1eef “\u0102n qu\u1ea3 nh\u1edb k\u1ebb tr\u1ed3ng c\u00e2y”.
      \u0110\u00e1p \u00e1n:<\/em> “\u0102n qu\u1ea3” \u1ea9n d\u1ee5 cho vi\u1ec7c h\u01b0\u1edfng th\u00e0nh qu\u1ea3, “k\u1ebb tr\u1ed3ng c\u00e2y” \u1ea9n d\u1ee5 cho ng\u01b0\u1eddi t\u1ea1o ra th\u00e0nh qu\u1ea3. \u0110\u00e2y l\u00e0 \u1ea9n d\u1ee5 c\u00e1ch th\u1ee9c<\/strong>, khuy\u00ean con ng\u01b0\u1eddi bi\u1ebft \u01a1n ng\u01b0\u1eddi \u0111i tr\u01b0\u1edbc.<\/p>\n

      B\u00e0i 4 (tr\u1eafc nghi\u1ec7m):<\/strong> \u1ea8n d\u1ee5 kh\u00e1c ho\u00e1n d\u1ee5 ch\u1ee7 y\u1ebfu \u1edf \u0111i\u1ec3m n\u00e0o?
      A. \u1ea8n d\u1ee5 d\u1ef1a tr\u00ean s\u1ef1 t\u01b0\u01a1ng \u0111\u1ed3ng, ho\u00e1n d\u1ee5 d\u1ef1a tr\u00ean s\u1ef1 g\u1ea7n g\u0169i.
      B. \u1ea8n d\u1ee5 d\u1ef1a tr\u00ean s\u1ef1 g\u1ea7n g\u0169i, ho\u00e1n d\u1ee5 d\u1ef1a tr\u00ean s\u1ef1 t\u01b0\u01a1ng \u0111\u1ed3ng.
      C. C\u1ea3 hai gi\u1ed1ng h\u1ec7t nhau.
      D. \u1ea8n d\u1ee5 ch\u1ec9 d\u00f9ng trong th\u01a1, ho\u00e1n d\u1ee5 ch\u1ec9 d\u00f9ng trong v\u0103n xu\u00f4i.
      \u0110\u00e1p \u00e1n:<\/em> A<\/strong>.<\/p>\n

      \"an-du-la-gi-3\"<\/p>\n

      C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 \u1ea9n d\u1ee5<\/h2>\n

      \u1ea8n d\u1ee5 l\u00e0 g\u00ec?<\/h3>\n

      \u1ea8n d\u1ee5 l\u00e0 bi\u1ec7n ph\u00e1p tu t\u1eeb g\u1ecdi t\u00ean s\u1ef1 v\u1eadt, hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y b\u1eb1ng t\u00ean s\u1ef1 v\u1eadt, hi\u1ec7n t\u01b0\u1ee3ng kh\u00e1c c\u00f3 n\u00e9t t\u01b0\u01a1ng \u0111\u1ed3ng, nh\u1eb1m t\u0103ng s\u1ee9c g\u1ee3i h\u00ecnh, g\u1ee3i c\u1ea3m cho di\u1ec5n \u0111\u1ea1t.<\/p>\n

      C\u00f3 m\u1ea5y ki\u1ec3u \u1ea9n d\u1ee5?<\/h3>\n

      C\u00f3 4 ki\u1ec3u \u1ea9n d\u1ee5: \u1ea9n d\u1ee5 h\u00ecnh th\u1ee9c, \u1ea9n d\u1ee5 c\u00e1ch th\u1ee9c, \u1ea9n d\u1ee5 ph\u1ea9m ch\u1ea5t v\u00e0 \u1ea9n d\u1ee5 chuy\u1ec3n \u0111\u1ed5i c\u1ea3m gi\u00e1c.<\/p>\n

      \u1ea8n d\u1ee5 d\u1ef1a tr\u00ean m\u1ed1i quan h\u1ec7 n\u00e0o?<\/h3>\n

      \u1ea8n d\u1ee5 d\u1ef1a tr\u00ean n\u00e9t t\u01b0\u01a1ng \u0111\u1ed3ng (s\u1ef1 gi\u1ed1ng nhau) gi\u1eefa hai s\u1ef1 v\u1eadt, hi\u1ec7n t\u01b0\u1ee3ng.<\/p>\n

      \u1ea8n d\u1ee5 kh\u00e1c ho\u00e1n d\u1ee5 nh\u01b0 th\u1ebf n\u00e0o?<\/h3>\n

      \u1ea8n d\u1ee5 d\u1ef1a v\u00e0o s\u1ef1 t\u01b0\u01a1ng \u0111\u1ed3ng (gi\u1ed1ng nhau), c\u00f2n ho\u00e1n d\u1ee5 d\u1ef1a v\u00e0o s\u1ef1 g\u1ea7n g\u0169i, t\u01b0\u01a1ng c\u1eadn (b\u1ed9 ph\u1eadn \u2013 to\u00e0n th\u1ec3, d\u1ea5u hi\u1ec7u \u2013 s\u1ef1 v\u1eadt).<\/p>\n

      \u1ea8n d\u1ee5 kh\u00e1c so s\u00e1nh \u1edf \u0111\u00e2u?<\/h3>\n

      So s\u00e1nh n\u00eau r\u00f5 c\u1ea3 hai v\u1ebf v\u00e0 th\u01b0\u1eddng c\u00f3 t\u1eeb so s\u00e1nh (nh\u01b0, l\u00e0, t\u1ef1a\u2026), c\u00f2n \u1ea9n d\u1ee5 l\u00e0 so s\u00e1nh ng\u1ea7m, l\u01b0\u1ee3c b\u1ecf v\u1ebf \u0111\u01b0\u1ee3c so s\u00e1nh v\u00e0 kh\u00f4ng d\u00f9ng t\u1eeb so s\u00e1nh.<\/p>\n

      \u1ea8n d\u1ee5 c\u00f3 t\u00e1c d\u1ee5ng g\u00ec?<\/h3>\n

      \u1ea8n d\u1ee5 gi\u00fap t\u0103ng s\u1ee9c g\u1ee3i h\u00ecnh, g\u1ee3i c\u1ea3m, l\u00e0m cho di\u1ec5n \u0111\u1ea1t h\u00e0m s\u00fac, gi\u00e0u h\u00ecnh \u1ea3nh v\u00e0 m\u1edf ra nhi\u1ec1u li\u00ean t\u01b0\u1edfng cho ng\u01b0\u1eddi \u0111\u1ecdc.<\/p>\n