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English Junior High

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問題10 【思考・判断・表現】 (2×9=18) 健(Ken)はクラスの友達に切手 (stamp) と地図 (map) を見せながら、ブータン王国 ( Bhutan)に住む文通相手 (pen pal)のタシ (Tashi) との交通についてスピーチをしてい ます。 次の英文を読んで、あとの (ア) ~ (ケ)の各問いに答えなさい。 0275 300q sit zow stoloporlo to roteir sdt bib 9W (1) Hi, everyone. I'm going to talk about my pen pal. Please look at this stamp. Have you ? Tashi, my pen pal ever seen a big stamp like this? It's not a Japanese stamp. Then ( 1 )? TIDS Satplopo tuodo in Bhutan, sent it to me last week. Bhutan has interesting stamps. I'll talk a little about Syobot pluqoq Bhutan. Please look at this map. Bhutan is between China and India. It's bigger than Kyushu NW (E) and has many high mountains. People in that country have clothes like Japanese kimonos, and they grow and eat rice. Tashi and I became pen pals last year. I've never seen him, ( 2 ) I've seen his father. in the Meiji pen His father came to Japan to study at college, and my mother was his Japanese teacher. t in Japan. They tre When she brought him to our house, he told me about his family. He said, "My son is as old LA 111. SIDIO Snipsd as you. He wanted to come to Japan with 3me, but he had to stay in Bhutan. He is very bih wohl (S)make interested in Japan and wants a Japanese friend. If you write a letter to him, he will be very ( 4 )." Tashi's father also told me about his country. It was very interesting. So I Sstoloporio svori ot sent a letter to Tashi, and we started writing letters to each other. We write letters in English. I didn't like writing English before, but now I enjoy it. Tashi writes English very well because teachers in Bhutan usually speak English when they teach. He sometimes uses difficult words in his letters, so I need a ( 5 ) to read them. We write about our countries, schools, families, and friends. He uses beautiful stamps to him, too. Thank you for listening.

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Mathematics Junior High

④と⑤とGが出てくる意味がわかりません。

右の図のように,関数y=ax²...アのグラフ上に3点 A, B, C, y 軸上に点Dを,四角形ABCDが平行四辺 形となるようにとり, 四角形ABCDの辺ABとy軸との 交点をEとする。 点Aの座標が(-4, -4), 点Bの座 標 (2, p) とする。 x軸上に点Fをとり, CDF の面 積と△AEDの面積が等しくなるとき, 点Fの座標を求め なさい。 ただし, 点F は, 直線 CD について, 原点と同 Å じ側にとるものとする。 <三重県 〉 解き方 2 求める座標を文字でおく 点Fの座標を文字でおき, 等式をつくって点Fの座標を求める。 y=1/x-2 解き方 3 必要な長さや、 座標, 直線などを求める △AED = - =1/12/2x - × 10×4=20 点のx座標とすると, F(f, 0) 直線DFは傾きが ④[ 点Cからy軸にひいた垂線と直線DFとの交点をGとすると, f G ( [ 4 A A なので.y=2x-12 y 0 PF 解き方 1 問題の条件を図に書き込む A(-4,-4) がy=ax2のグラフ上にあることより,アの式はy=①[ 〕 B(2.p) はy=-2x2のグラフ上にあるので、p=-12×22=-1 B(2,-1) 点Dのy座標をdとすると D (0, d) 四角形ABCD は平行四辺形なので,C② [ ), d+3) C(6.d+3) はy=-1 =-212x2のグラフ上にあるので.d+3=-2x62 d=-12 よって, C (6, -9), D (0, -12) 直線ABはA(-4, -4),B(2,-1)を通るので,y= よって, E(0, ③ [ D) D E -4 2 B 〕, -9) よってCG=6 △CDF=CDG+△CFG=12x16-1/4)×3+1/12x16-1/4)×9=616-1/4) CD=△AEDより 616-1)=20 これを解いて.J=⑨[ 答え DASI [1] x ]

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