I. T\u1ea1o nh\u1ecbp \u0111i\u1ec7u v\u00e0 \u00e2m h\u01b0\u1edfng cho c\u00e2u<\/h2>\n

C\u00e2u 1 (trang 129 sgk Ng\u1eef V\u0103n 12 T\u1eadp 1):<\/b><\/span><\/p>\n

– S\u1ef1 ph\u1ed1i h\u1ee3p nh\u1ecbp ng\u1eafn v\u00e0 nh\u1ecbp d\u00e0i:<\/p>\n

+ Hai v\u1ebf \u0111\u1ea7u nh\u1ecbp \u0111i\u1ec7u tr\u1ea3i d\u00e0i \u2192 ph\u00f9 h\u1ee3p v\u1edbi vi\u1ec7c bi\u1ec3u hi\u1ec7n c\u00e1c cu\u1ed9c \u0111\u1ea5u tranh tr\u01b0\u1eddng k\u00ec c\u1ee7a d\u00e2n t\u1ed9c.<\/p>\n

+ V\u1ebf sau ng\u1eafn, nh\u1ecbp \u0111i\u1ec7u d\u1ed3n d\u1eadp, m\u1ea1nh m\u1ebd, ph\u00f9 h\u1ee3p v\u1edbi n\u1ed9i dung kh\u1eb3ng \u0111\u1ecbnh quy\u1ec1n \u0111\u1ed9c l\u1eadp, t\u1ef1 do c\u1ee7a d\u00e2n t\u1ed9c.<\/p>\n

– C\u00e2u \u0111\u1ea7u, c\u00e1c v\u1ebf k\u1ebft th\u00fac b\u1eb1ng thanh b\u1eb1ng (nay, do), do l\u00e0 \u00e2m ti\u1ebft m\u1edf. C\u00e2u sau k\u1ebft th\u00fac b\u1eb1ng \u00e2m ti\u1ebft mang thanh tr\u1eafc (l\u1eadp), \u0111\u00e2y l\u00e0 \u00e2m ti\u1ebft \u0111\u00f3ng.<\/p>\n

– \u0110o\u1ea1n v\u0103n c\u00f2n s\u1eed d\u1ee5ng ph\u00e9p \u0111i\u1ec7p t\u1eeb ng\u1eef v\u00e0 \u0111i\u1ec7p c\u00fa ph\u00e1p, ph\u1ed1i h\u1ee3p v\u1edbi nhau \u0111\u1ec3 t\u1ea1o ra \u00e2m h\u01b0\u1edfng h\u00f9ng h\u1ed3n, \u0111anh th\u00e9p cho l\u1eddi tuy\u00ean ng\u00f4n.<\/p>\n

C\u00e2u 2 (trang 129 sgk Ng\u1eef V\u0103n 12 T\u1eadp 1):<\/b><\/span><\/p>\n

T\u00e1c d\u1ee5ng c\u1ee7a \u00e2m thanh, nh\u1ecbp \u0111i\u1ec7u trong vi\u1ec7c t\u1ea1o n\u00ean s\u1eafc th\u00e1i h\u00f9ng h\u1ed3n, thi\u00eang li\u00eang c\u1ee7a l\u1eddi k\u00eau g\u1ecdi c\u1ee9u n\u01b0\u1edbc:<\/p>\n

– Ph\u1ed1i h\u1ee3p ph\u00e9p \u0111i\u1ec7p v\u00e0 ph\u00e9p \u0111\u1ed1i.<\/p>\n

+ \u0110i\u1ec7p t\u1eeb ng\u1eef, \u0111i\u1ec7p k\u1ebft c\u1ea5u ng\u1eef ph\u00e1p v\u00e0 nh\u1ecbp \u0111i\u1ec7u. Trong c\u00e2u \u0111\u1ea7u, nh\u1ecbp \u0111\u01b0\u1ee3c l\u1eb7p l\u1ea1i l\u00e0 4 – 2 – 4 – 2.<\/p>\n

+ \u0110\u1ed1i, \u0111\u1ed1i x\u1ee9ng v\u1ec1 t\u1eeb ng\u1eef, \u0111\u1ed1i x\u1ee9ng v\u1ec1 nh\u1ecbp \u0111i\u1ec7u v\u00e0 k\u1ebft c\u1ea5u ng\u1eef ph\u00e1p. V\u00ed d\u1ee5: Ai c\u00f3 s\u00fang d\u00f9ng s\u00fang, ai c\u00f3 g\u01b0\u01a1m d\u00f9ng g\u01b0\u01a1m.<\/p>\n

– C\u00e2u v\u0103n xu\u00f4i nh\u01b0ng c\u00f3 v\u1ea7n \u1edf nhi\u1ec1u ch\u1ed7. C\u00e2u 3 \u0111i\u1ec7p v\u1ea7n ung.<\/p>\n

– Ph\u1ed1i h\u1ee3p gi\u1eefa c\u00e1c c\u00e2u nh\u1ecbp ng\u1eafn, nh\u1ecbp d\u00e0i (c\u00e2u 1, c\u00e2u 3, c\u00e2u 4 v\u00e0 c\u00e2u 2, c\u00e2u 5) \u2192 \u00e2m h\u01b0\u1edfng c\u00e2u v\u0103n khi khoan thai, khi d\u1ed3n d\u1eadp, m\u1ea1nh m\u1ebd.<\/p>\n

C\u00e2u 3 (trang 130 sgk Ng\u1eef V\u0103n 12 T\u1eadp 1):<\/b><\/span><\/p>\n

– \u0110o\u1ea1n v\u0103n s\u1eed d\u1ee5ng ph\u00e9p nh\u00e2n h\u00f3a v\u00e0 nhi\u1ec1u \u0111\u1ed9ng t\u1eeb.<\/p>\n

– Nh\u1ecbp \u0111i\u1ec7u l\u1eddi v\u0103n khi nhanh, khi ch\u1eadm t\u1ea1o \u00e2m h\u01b0\u1edfng m\u1ea1nh m\u1ebd, d\u1ee9t kho\u00e1t.<\/p>\n

– V\u00ed d\u1ee5:<\/p>\n

+ C\u00e2u 3 ng\u1eaft nh\u1ecbp li\u00ean ti\u1ebfp k\u1ec3 t\u1eebng chi\u1ebfn c\u00f4ng c\u1ee7a tre.<\/p>\n

+ Hai c\u00e2u cu\u1ed1i ng\u1eaft nh\u1ecbp C\/V t\u1ea1o \u00e2m h\u01b0\u1edfng m\u1ea1nh m\u1ebd d\u1ee9t kho\u00e1t kh\u1eb3ng \u0111\u1ecbnh \u00fd ch\u00ed ki\u00ean c\u01b0\u1eddng v\u00e0 chi\u1ebfn c\u00f4ng v\u1ebb vang c\u1ee7a c\u00e2y tre.<\/p>\n

II. \u0110i\u1ec7p \u00e2m, \u0111i\u1ec7p v\u1ea7n, \u0111i\u1ec7p thanh<\/h2>\n

C\u00e2u 1 (trang 130 sgk Ng\u1eef V\u0103n 12 T\u1eadp 1):<\/b><\/span><\/p>\n

a, L\u1eeda l\u1ef1u l\u1eadp l\u00f2e l\u00e0 s\u1ef1 \u0111i\u1ec7p ph\u1ee5 \u00e2m \u0111\u1ea7u th\u1ec3 hi\u1ec7n tr\u1ea1ng th\u00e1i \u1ea9n hi\u1ec7n tr\u00ean m\u1ed9t di\u1ec7n r\u1ed9ng c\u1ee7a hoa l\u1ef1u. Hoa l\u1ef1u \u0111\u1ecf nh\u01b0 l\u1eeda v\u00e0 l\u1ea5p l\u00f3 tr\u00ean c\u00e0nh nh\u01b0 nh\u1eefng \u0111\u1ed1m l\u1eeda l\u00fac \u1ea9n l\u00fac hi\u1ec7n, l\u00fac l\u00f3e l\u00ean l\u00fac l\u1ea1i \u1ea9n trong t\u00e1n l\u00e1.<\/p>\n

b, L\u00e0n, l\u00f3ng l\u00e1nh, loe l\u00e0 s\u1ef1 \u0111i\u1ec7p ph\u1ee5 \u00e2m \u0111\u1ea7u. S\u1ef1 l\u1eb7p l\u1ea1i v\u00e0 ph\u1ed1i h\u1ee3p b\u1ed1n ph\u1ee5 \u00e2m \u0111\u1ea7u l tr\u00f2n c\u00e2u th\u01a1 \u0111\u00e3 di\u1ec5n t\u1ea3 \u0111\u01b0\u1ee3c tr\u1ea1ng th\u00e1i ph\u1ea3n chi\u1ebfu m\u1eb7t n\u01b0\u1edbc ao.<\/p>\n

C\u00e2u 2 (trang 130 sgk Ng\u1eef V\u0103n 12 T\u1eadp 1):<\/b><\/span><\/p>\n

\u1ede \u0111o\u1ea1n th\u01a1, v\u1ea7n ang \u0111\u01b0\u1ee3c \u0111i\u1ec7p l\u1ea1i nhi\u1ec1u nh\u1ea5t. V\u1ea7n ang c\u00f3 nguy\u00ean \u00e2m r\u1ed9ng v\u00e0 \u00e2m cu\u1ed1i l\u00e0 \u00e2m m\u0169i, t\u1ea5t c\u1ea3 c\u00f3 7 ti\u1ebfng c\u00f3 v\u1ea7n ang.<\/p>\n

\u2192 T\u00e1c d\u1ee5ng: t\u1ea1o n\u00ean \u00e2m l\u01b0\u1ee3ng r\u1ed9ng m\u1edf ti\u1ebfp di\u1ec5n k\u00e9o d\u00e0i. \u0110\u1ed3ng th\u1eddi c\u0169ng ph\u00f9 h\u1ee3p v\u1edbi vi\u1ec7c gi\u00e3i b\u00e0y c\u1ea3m x\u00fac v\u1ec1 m\u00f9a \u0111\u00f4ng v\u1eabn c\u00f2n \u0111ang ti\u1ebfp di\u1ec5n v\u1edbi l\u00e1 b\u00e0ng \u0111\u1ecf, s\u1ebfu giang \u0111ang bay v\u1ec1 nam tr\u00e1nh r\u00e9t m\u00e0 \u0111\u00e3 c\u00f3 nh\u1eefng l\u1eddi m\u1eddi g\u1ecdi c\u1ee7a m\u00f9a xu\u00e2n.<\/p>\n

C\u00e2u 3 (trang 130 sgk Ng\u1eef V\u0103n 12 T\u1eadp 1):<\/b><\/span><\/p>\n

\u0110o\u1ea1n th\u01a1 g\u1ee3i ra \u0111\u01b0\u1ee3c khung c\u1ea3nh hi\u1ec3m tr\u1edf c\u1ee7a v\u00f9ng r\u1eebng n\u00fai v\u00e0 s\u1ef1 gian lao, v\u1ea5t v\u1ea3 c\u1ee7a cu\u1ed9c h\u00e0nh qu\u00e2n l\u00e0 nh\u1edd c\u00f3 s\u1ef1 \u0111\u00f3ng g\u00f3p c\u1ee7a nhi\u1ec1u y\u1ebfu t\u1ed1:<\/p>\n

– Nh\u1ecbp \u0111i\u1ec7u 4\/3 \u1edf ba c\u00e2u th\u01a1 \u0111\u1ea7u, c\u00e2u th\u01a1 cu\u1ed1i d\u01b0\u1eddng nh\u01b0 kh\u00f4ng c\u00f3 nh\u1ecbp.<\/p>\n

– C\u00e1c t\u1eeb ng\u1eef gi\u00e0u s\u1ee9c g\u1ee3i h\u00ecnh: kh\u00fac khu\u1ef7u, th\u0103m th\u1eb3m, heo h\u00fat.<\/p>\n

– \u0110\u1ed1i c\u00e1c t\u1eeb ng\u1eef:\u00a0D\u1ed1c l\u00ean kh\u00fac khu\u1ef7u \/ d\u1ed1c th\u0103m th\u1eb3m; Ng\u00e0n th\u01b0\u1edbc l\u00ean cao \/ ng\u00e0n th\u01b0\u1edbc xu\u1ed1ng.<\/i><\/p>\n

– \u0110i\u1ec7p t\u1eeb ng\u1eef: d\u1ed1c, ng\u00e0n th\u01b0\u1edbc k\u1ebft h\u1ee3p v\u1edbi bi\u1ec7n ph\u00e1p nh\u00e2n h\u00f3a: s\u00fang ng\u1eedi tr\u1eddi.<\/p>\n

– C\u00e2u th\u01a1 1 thi\u00ean v\u1ec1 tr\u1eafc, c\u00e2u 4 to\u00e0n v\u1ea7n b\u1eb1ng. \u2192 V\u1eeba g\u1ee3i n\u00ean s\u1ef1 h\u00f9ng tr\u00e1ng, m\u1ea1nh m\u1ebd v\u1eeba g\u1ee3i t\u1ea3 kh\u00f4ng kh\u00ed r\u1ed9ng l\u1edbn, tr\u1ea3i r\u1ed9ng tr\u01b0\u1edbc m\u1eaft sau khi \u0111\u00e3 v\u01b0\u1ee3t qua con \u0111\u01b0\u1eddng gian lao, v\u1ea5t v\u1ea3.<\/p>\n

Tham kh\u1ea3o th\u00eam c\u00e1c b\u00e0i so\u1ea1n v\u0103n l\u1edbp 12 hay kh\u00e1c:<\/p>\n","protected":false},"excerpt":{"rendered":"

I. T\u1ea1o nh\u1ecbp \u0111i\u1ec7u v\u00e0 \u00e2m h\u01b0\u1edfng cho c\u00e2u C\u00e2u 1 (trang 129 sgk Ng\u1eef V\u0103n 12 T\u1eadp 1): – S\u1ef1 ph\u1ed1i h\u1ee3p nh\u1ecbp ng\u1eafn v\u00e0 nh\u1ecbp d\u00e0i: + Hai v\u1ebf \u0111\u1ea7u nh\u1ecbp \u0111i\u1ec7u tr\u1ea3i d\u00e0i \u2192 ph\u00f9 h\u1ee3p v\u1edbi vi\u1ec7c bi\u1ec3u hi\u1ec7n c\u00e1c cu\u1ed9c \u0111\u1ea5u tranh tr\u01b0\u1eddng k\u00ec c\u1ee7a d\u00e2n t\u1ed9c. + V\u1ebf sau […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[1300],"tags":[1378,1381,1380],"yoast_head":"\n