Tổng hợp đề thi HSG cấp tỉnh các môn lớp 9 năm 2017-2018

rHAl NcrrrBN<br /> so crAo pUC_yA_?Ao rAo<br /> UBND TiNH<br /> <br /> of cuixn rHrrc<br /> <br /> Trrr cHeN Hec srNH crOr cAp riNn<br /> Nim hgc 2017 - 2018<br /> tuoNr xctt vAN - r.,6p 9 THCS<br /> (Thdi gian ldm biti: 150 philt kh6nl ke thdi gian gtao di)<br /> <br /> CAu 1(8,0 tli6m)<br /> "CQ mQt cqu bd dang choi o d6ng cdt trudc sdn. Khi ddo mot dudns h(im<br /> trong dlng c.dt, cQu b6 dtlig phdi m,t rang dd t6n cQtu ui iii" ii*<br /> kh6i d6ng cdt<br /> <br /> ;;r;';i;;;;;<br /> <br /> &i mpi cdch, niit s*c lqc nhung r6t cr,rc.vdn kh6ng tha diiy<br /> "ii vqy bdn iay<br /> daqc tdng dd ra kh6i dii"s cdt. Dd<br /> Za" ui iay *o6r, ru6m mdu.<br /> "qu<br /> CAu bqt kh6c rdm rtrt trbig thdt veng.<br /> f9 nqAi ffong nhd tQng ld theo ddi mqi chuyQn. Vd khi cQu bd bQt kh6c,<br /> _Ngu,oi<br /> ngudi bd budc tdi: "Con trai, tqi sao con kh6ng ditng hdt sdcc mqnh crta minh? "<br /> CQu bd dimg<br /> <br /> cqu bd th6n th*c ddp: "c6 md! Con dd dimg hdt sdcc 16l md b6!"<br /> "Kh6ng con trai - ngadi bi| nhg nfdng n6i con dd kh6ng dimg ddn trit cd<br /> sdrc mgnh cfia con. Con dd kh6ng nhd b6 giilp',.<br /> N6i r6i ngrdi b6 cili xu6rg boi tdng dd ra, nhdc l€n vd vtt di chd khdc".<br /> (Theo b6o diQn<br /> <br /> fr tuoitre.vn -t6c giirBiri Xu6n LQc ph6ng dich)<br /> <br /> Hdy vi6t bdi vdn nghi lu$n ngin trinh bdy suy nghi cfia em vC nghia c6u<br /> i<br /> <br /> chuyQn tr6n.<br /> <br /> Ciu 2 (12,0 tli6m)<br /> cim ntrOn cta em vc tinh cha con trong haitfucphAm ,Ldo Hqc,, (Nam cao)<br /> <br /> vd "Chi6c laqc ngd" O{grry6n Quang S6ng).<br /> <br /> -----ntir-----<br /> <br /> Hg<br /> <br /> vi<br /> <br /> t6n thi<br /> <br /> sinh:<br /> <br /> ...... SBD:<br /> <br /> r.rBND TiNH THAr<br /> <br /> so<br /> <br /> NGr.ryEN<br /> <br /> of rHr cHQN HQc sINH cror cAp riNH<br /> <br /> cno ouc vA oAo r4o<br /> <br /> NAMHOC: 2017 -2018<br /> <br /> oE cnirun rHOc<br /> <br /> vt6lt rHI: ToriN<br /> <br /> HQC, LoP 9<br /> <br /> Thdi gian lim bii: 150 phft (kh1ng ke thdi gian giao di)<br /> <br /> Bni<br /> <br /> Bhi 2 Qd).<br /> <br /> Giii<br /> <br /> trinh<br /> <br /> phucrng<br /> <br /> Bni 3 (4d). Kh6ng su<br /> <br /> dr,rng<br /> <br /> (x,T) =<br /> <br /> y'<br /> <br /> .f<br /> <br /> (x,y)<br /> <br /> =0<br /> <br /> =<br /> <br /> I3<br /> <br /> m6y tinh cdm tay, hdy tim<br /> <br /> s6<br /> <br /> "b"d"<br /> <br /> nguyCn ducrng (x;y) ta dinh nghia<br /> khi x < -f (x+1,y) = yl-f (x,y)+ .f (x,y<br /> <br /> Bdi 4 (3d).V6i m6i cpp<br /> <br /> f<br /> <br /> x' - x' "<br /> <br />