Bài kiểm tra học kì I môn : hoá học 9 . thời gian: 45 phút
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Trêng THCS §«ng S¬n Thø 2 ngµy 21 th¸ng 12 n¨m 2009 bµi kiÓm tra häc k× I Moân : Ho¸ häc 9 . Thêi gian: 45 phót A. Ma tr©n. Yªu cÇu Néi dung NhËn biÕt Th«ng hiÓu VËn dông Tæng TN TL TN TL TN TL 1. Ch¬ng I “ §¹i c¬ng vÒ kÜ thuËt trång trät” 0,5 1,5 0,25 2,25 2. Ch¬ng II: “Kim lo¹i” 1,0 1,0 4,5 0,25 1,0 7,75 Tæng 0,5 1,0 1,0 6,0 0,5 1,0 10,0 B. §Ò bµi: I. Tr¾c nghiÖm C©u 1: Chän ®¸p ¸n ®óng 1. Ph©n h÷u c¬ gåm: a. ph©n vi sinh b. ph©n chuång, ph©n b¾c, ph©n r¸c c. ph©n ®¹m, ph©n l©n d. c¶ a, b, c 2.Vai trß cña trång trät a. cung cÊp, l¬ng thùc, thùc phÈm b. cung cÊp thøc ¨n cho ch¨n nu«i c. cung cÊp nguyªn liÖu cho c«ng nghiÖp vµ n«ng s¶n cho xuÊt khÈu d. c¶ a, b, c 3. Lu©n canh cã t¸c dông: a. t¨ng chÊt lîng n«ng s¶n b. t¨ng ®é ph× nhiªu cña ®Êt c. tËn dông ®îc ¸nh s¸ng d. ®iÒu hoµ dinh dìng, gi¶m s©u bÖnh 4. Lóa nªn thu ho¹ch vµo giai ®o¹n nµo? a. h¹t võa, ch¾c b. h¹t chÝn, b«ng rñ c. h¹t chÝn, vµng ®Òu d. chÝn ®Çu b«ng C©u 2: §iÒn ®óng( §), sai (S) vµo ®Çu c©u. 1. Khi gi©m cµnh nguêi ta thêng tØa bít l¸ ®Ó h¹n chÕ sù tho¸t h¬i níc 2. Rau c¶i b¾p nªn thu ho¹ch lóc b¾p cuèn dµy. 3. Xen canh lµm cho ®Êt t¬i xèp vµ gi¶m s©u bÖnh. 4.T¨ng vô gãp phÇn t¨ng thªm s¶n phÈm thu ho¹ch II.Tù luËn: C©u 1: Cã mÊy c¸ch ®Ó s¶n xuÊt gièng c©y trång b»ng nh©n gièng v« tÝnh? Nªu ®Æc ®iÓm c¬ b¶n cña c¸c ph¬ng ph¸p ®ã ? C©u 2: Tai sao ph¶i tiÕn hµnh xö lý h¹t gièng tríc khi gieo trång? Cã mÊy ph¬ng ph¸p xö lý h¹t gièng? C©u 3: Nªu môc ®Ých, ph¬ng ph¸p chÕ biÕn n«ng s¶n? LÊy vÝ dô víi mçi ph¬ng ph¸p C©u 4: Lu©n canh lµ g×? Cã mÊy l¹i h×nh lu©n canh? T¸c dông cña lu©n canh. ë ®Þa ph¬ng em cã ¸p dông ph¬ng thøc canh t¸c nµy kh«ng? LÊy vÝ dô? C. §¸p ¸n vµbiÓu ®iÓm chÊm c«ng nghÖ 7. A. Tr¾c nghiÖm : 2 ®iÓm C©u 1:(1 ®iÓm). Mçi ý ®óng 0,25 ®iÓm 1- b 2- d 3- b 4- b C©u 2 : A . (1 ®iÓm). 1- § 2- § 3- S 4- § B. PhÇn tù luËn: 8 ®iÓm C©u Néi dung §iÓm 1 S¶n xuÊt cÇy trång b»ng nh©n gièng v« tÝnh cã c¸c ph¬ng ph¸p sau : - Gi©m cµnh : Tõ 1 ®o¹n cµnh c¾t rêi khái th©n mÑ ®em gi©m vµo c¸t Èm sau 1 thêi gian tõ cµnh gi©m h×nh thµnh rÔ. - GhÐp m¾t (ghÐp cµnh ): LÊy m¾t ghÐp (cµnh ghÐp) ghÐp vµo mét c©y kh¸c( gèc ghÐp). - ChiÕt cµnh : Bãc 1 khoanh vá cña cña cµnh sau ®ã bã ®Êt l¹i khi cµnh ®· ra rÔ th× c¾t cµnh khái mÑ vµ trång xuèng ®Êt. 0,5 ®iÓm 0,5 ®iÓm 0,5 ®iÓm 2 - Xö lý h¹t gièng cã t¸c dông kÝch thÝch h¹t n¶y mÇm nhanh vµ diÖt trõ s©u bÖnh cã trong h¹t. - cã 2 ph¬ng ph¸p xö lý h¹t gièng: + xö lý b»ng nhiÖt ®é + xö lý b»ng ho¸ chÊt. 1 ®iÓm 0,5 ®iÓm 0,5 ®iÓm 3 - Môc ®Ých chÕ biÕn n«ng s¶n: ®Ó h¹n chÕ sù hao hôt vÒ sè lîng vµ gi¶m sót chÊt lîng n«ng s¶n. - C¸c ph¬ng ph¸p chÕ biÕn. Mçi ý ®óng, cã vÝ dô: 0,5 ®iÓm ( thiÕu vÝ dô: 0,25 ®iÓm) + SÊy kh« : Lóa, ng«, ®Ëu, rau, qu¶. + ChÕ biÕn thµnh bét mÞn hay thµnh tinh bét: s¾n, ®Ëu ®ç + Muèi chua: hµnh, rau c¶i... + §ãng hép: da chuét 1 ®iÓm 0,5 ®iÓm 0,5 ®iÓm 0,5 ®iÓm 0,5 ®iÓm 4 + Lu©n canh lµ c¸ch tiÕn hµnh gieo trång lu©n phiªn c¸c lo¹i c©y trång kh¸c nhau trªn mét ®¬n vÞ diÖn tÝch. + C¸c lo¹i h×nh lu©n canh : - Lu©n canh gi÷a c¸c c©y trång c¹n víi nhau. - Lu©n canh gi÷ c¸c c©y trång c¹n vµ c©y trång níc. + VD : Tõ th¸ng 5-9 : cÊy lóa mïa. Tõ th¸ng 9-12 : trång ng«. Tõ th¸ng 12-5 : N¨m sau trång lóa xu©n ( HS cã thÓ lÊy vÝ dô kh¸c ) 1 ®iÓm 0,5 ®iÓm 0,5 ®iÓm 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