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English Senior High

教えてくださる方お願いします!!至急です!! 長文が苦手で教えてください

26 Unit 4 長文問題 もしも時間を戻せたら? 1 Do you ever wish you ( ) able to change the past? If you had (2) that ability, maybe you would spend more time practicing soccer, learn the instrument that you always wanted to play, study harder for that big test, or try to save more money for the future. 2 What would you do if you had the ability to turn back the clock? This was a question which Mr. Woodall, a high school teacher in Philadelphia, asked his students. Mr. Woodall wanted to know what was important to his students but was pleasantly surprised to see the results. I think their answers will be very interesting to you, too. 3 Mr. Woodall expected to see answers (which were connected to the own good of the students, but (3) he was wrong. The majority of the answers (5)which he received from his students were for the good of others. 4 A very common answer he found was, "If I could turn back the clock, I would take back some things that I said to a friend." Apparently, many of the students regretted saying something (5) ) hurt their friends and wanted to change that. Surprisingly, close to 40% of the students answered this way. 5 Another common answer was about pets. If I were able to turn back the clock, I would spend more time with my dog," or "I would be nicer to my cat," were some common answers. Almost 25% of the students missed their pet very much and wanted to show more love. These pets included dogs, cats, birds, rabbits and other animals. 66 6 There were other answers about reading more books, studying harder, or eating less junk food. However, Mr. Woodall was quite impressed with his students and their concern for others. He decided to share all of the answers with his students, and the students enjoyed hearing the different answers. Mr. Woodall decided to try this activity with his students every year. By asking, he felt he would learn a lot about his students. Target ①関係代名詞 ②仮定法・間接疑問文 turn back (時計を) 巻き戻す pleasantly 心地よく expected to 〜するだろうと思う good majority , t take back 取り消す apparently どうやら~らしい close to 〜近く be nice to 〜にやさしい concern for 問1 (1) ( 〜への気遣い配慮 Pag 2 junk food ジャンクフード 問3 い。 ( 問 問 (4) (6) 1

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Mathematics Senior High

白チャートの確率の問題で(2)が分かりません! 詳しく解説していただきたいです!

322 余事象を利用した確率 (順列・組合せ利用) 基礎例題 33 9枚のカードがあり, そのおのおのには I, I, D, A, I, G, A, K, Uと (1) これら9枚のカードをよく混ぜて横1列に並べるとき, Ⅰのカードが3 いう文字が1つずつ書かれている。率を (2) これら9枚のカードをよく混ぜて3枚を同時に取り出したとき, 書かれ 枚続いて並ぶことがない確率を求めよ。 au てある文字がすべて異なる確率を求めよ。 CHARL & GUIDE 余事象の利用 (1) 〜でない。少なくとも〜 すべて~には余事象の近道あり (1) Iのカードが3枚続いて並ぶ場合 (2) 同じ文字がある場合をまず考える。 基礎例題 32 ■解答 08=axa (1) 9枚のカードの並べ方は 9! 通り 「Iのカードが3枚続いて並ぶ」という事象をAとする。 3枚のIのカードをひとまとめにして,1枚のカードと考える と,これと残りの6枚の合計7枚の並べ方は 7! 通り そのどの場合に対しても、ひとまとめにした3枚のⅠのカード の並べ方は 3! 通り よって,求める確率は P(A)=1- (2) 9枚のカードから3枚取る組合せは 「同じ文字がある」という事象をAとする。 [1] I が3枚ある場合 Ca=1 (通り) [2] I が2枚だけある場合 C×C = 18 (通り) 出しま [3] Aが2枚ある場合 2C2X,C=7 (通り) よって,同じ文字がある場合の数は1+18+7=26 (通り) 26 29 HORNS Tabelas 7!×3! 9! したがって, 求める確率は P(A)=1- 3・2・1 11 9.8 12 C3 = 84 (通り) -=1-- POTRE 84 420 42 同じ文字のカードでも区 別して考える。 7! 通り 100 3! 通り ←余事象の確率 残り6枚 同じ文字のカードでも区 別して考える。 [1] 3枚のIから3枚 [2] 3 枚のⅠ から2枚, 以外の6枚から1枚 [3] 2枚のAから2枚, A以外の7枚から1枚 をそれぞれ取る。 ←余事象の確率

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