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英語 中学生

答えを教えてください。 解説もつけてくれると嬉しいです。

【7】 次の英文を読んで、あとの問いに答えなさい。 My name is Judy Brown. IT (be) in Japan for ten days. I left San Francisco on July 10 by plane, and after nine hours I arrived at Narita. Emiko came to see me at the airport with her father. I was very happy when I saw her again, because she visited America and stayed at my home last year. On my first night in Japan, I stayed at a hotel in Tokyo. At the hotel, I thought I was in one of the ② (big) cities in America, because there were so many tall buildings and cars in the city. Now I am staying with Emiko's family, her grandparents, parents, brother and herself. Her house is in a small town near Kobe. They are very kind to me. Last Sunday her brother said, “How about ③ ( go) for a drive?" "All right, that'll be fun," Emiko answered, and we went out for a drive. We enjoyed ④ (drive) very much. In the evening, ⑤ I enjoyed a nice dinner with her family. It was cooked by her grandmother. She is too old to work as hard as young people but she can cook many kinds of Japanese food very well. Emiko often learns how to cook Japanese food from her grandmother. good / Emiko said to me, “I like my grandparents very much. ⑥ (many / teach us / they / things). They always say to me, ⑦ “Be kind to others." My grandfather knows a lot about the history of our country. He often tells me interesting stories about ⑧it. Every New Year's Day, my grandmother helps me when I put on my kimono. I make the bed for them every day." In America we don't usually live with grandfathers or grandmothers, but I have learned it is very good for young people to live with older people in the same house. (1) ①~④を正しい形に直すとき,下のア~エから適切なものをそれぞれ選び、記号で答え なさい。 I have being I biggest ① アhas been イ I have be ウ have been (2) ア biger イ bigger ウ bigest (3 ア goes イ went ウ gone I going ④ ア drives イ drove ウ driven I driving (2) 下線部 ⑤のようにありますが, dinner を準備したのは誰か日本語で答えなさい。 (3) Emiko は何人家族か数字で答えなさい。 (4) 下線部⑥の ( )内の語を意味が通るように並べ替えなさい。 ただし, 文頭の語も小 文字になっています。 (5) 下線部⑦の和訳として最も適切なものを下から選び, 記号で答えなさい。 ア 他人を信頼せよ イ 高齢者を大切にせよ ウ 他人に親切であれ 高齢者に優しくあれ (6) 下線部⑧が指すものを文中から5語で抜き出しなさい。 (7) 本文の内容に合致するものは○合致しないものは×を書きなさい。 ア Judy Brown has been in Japan for three weeks. イ Judy Brown stayed at a hotel in Tokyo on her first night in Japan. ウ Emiko often learns how to cook Japanese dishes from her grandmother. I In America people usually live with grandparents.

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数学 高校生

この問題の④がn=1の時も成り立つとありますが、どこで成り立っているのかが分かりません!誰か解説してくださるとありがたいです、よろしくお願いいたします🙇

B1-40 (58) 第1章 数 列 Think ○見るたり多度 例題 B1.27 いろいろな数列の和 ( 2 ) Sm=1−22+32-4'++ (−1)" を求めよ. 解答) その和を分けて考える必要がある. nが偶数、つまり=2mmは自然数のとき、 wwwwwww wwwwwwwwwwwwwww Sam=1-2+3-4++ (2m-1)-(2m)2 2m III Colu nが奇数、つまり=2m+1のとき =(12−22)+(32-4°)+…+{(2m-1)-(2m)2} 第 m項 S2m+1=1-2°+32-4°++ (2m-1)-(2m)+(2m+1)2 =(12-2)+(3°-4°)+…+{(2m-1)-(2m)2}+(2m+1)2 nが偶数のとき, n=2mmは自然数) とおくと, wwwwwwwwwwwwwww. Sm=S2m=(12−22)+(3-4)+…+{(2m-1)-(2m)2} ={(k-1)-(2k)}=2(-4k+1) k=1 第 (2m+1)項 いう m 第3項 こ①初う例 n=2,4,6 数列 {(2m-1)^- 初項から第 =-4mm(m+1)+m=-m(2m+1) n=2mより,m=in を①に代入して, == S,=-1/2"(n+1) ② __(n+1) での和と考える 和はnで表す っちの方 ○かりやよい wwwwwwwwwww nが奇数のとき,n=2m+1(mは自然数) とおくと, Sw=Szm+1= (12-2) + (3-4) +...・・・ +{(2m+1)-(2m)2}+(2m+1)^ =Szm+(2m+1)=-m(2m+1)+(2m+1)2 (m+1)(2m+1) (3 n=2m+1より,m= (n-1) を③ に代入して, S.=2+1/2)(n-1+1)=1/2m(n+1)……③ ④は n=1のときも成り立つ. よって,②④より, Focus n=3,5,7, n=1 とすると 1/12=1 Sn=(-1)+12 n(n+1) 場合 この形のままでもよ nが偶数の場合と奇数の場合に分けて考える S2m+1=S2m+a2m+1 練習 一般項am=(-1)n(n+1) で定められる数列の和 B1.27 S„=a+a2+α+... + α を求めよ. ***

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英語 高校生

この文章の➍なんですが、 if the other personがどうして他の人ではなく前の文に出てきている話しかけた人になるんですか?

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解決済み 回答数: 2