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英語 中学生

(1)の答えがchoosing、(2)の答えがウ、(5)の答えがアで、それぞれなんでその答えになるのかと、 5⃣の本文を上から4行、4行、5行、4行、3行、2行で分けた時それぞれに題名を付けるとしたらどうなりますか? 教えて欲しいですm(_ _)m

5 次の英文を読んで, あとの問いに答えなさい。 <川越東改> Origami is the Japanese art of folding paper. To do origami, the artist starts with a square piece of paper. Some people like to use special origami paper that is two colors. The front of the paper is one color, and the back of the paper is another color. Other people like to use origami paper that has patterns on it. After ①(choose) your paper, you can find many instructions for folding the paper into different things. Many people enjoy (make) origami flowers, animals, or things ( 3 ). For all of these things, there are a few kinds of folds that you need to use. For example, sometimes you need to fold the paper in half. Sometimes, the paper must be folded from corner to corner. If you follow the directions carefully, you can create a beautiful paper flower or animal. However, origami is more than folding paper. First, origami is an important part of Japanese life. For example, nature is important in Japan. In Japan, people care about the seasons, weather, water, or other things in nature. Origami is also a part of nature. That is why the most popular origami shapes are things like animals. Birds, fish, flowers, and stars are all popular shapes. It is a quiet activity, and can calm the mind and body. People who do origami like the activity as much as the art. They like it because origami demands a lot of attention. When people think hard about creating something, they forget about their problems. This allows them ④ to calm down. ⑤ Origami is also good for teaching children. They also learn to work carefully. Also, origami has squares and triangles. These shapes are important in all kinds of learning. Origami helps children to learn about these shapes. Maybe you can try to do origami yourself. You only need some paper and a book of instructions. You can find instructions for many origami shapes on the Internet. instruction direction (1)①,②の( )内の語を適する形にかえなさい。 (2) 30( に適するものを, ア~エから1つ選びなさい。 (3) (4) 7 to paint with 1 to talk with 1 (2) making. to play with I to help with (イ) ④に適するものを,ア~エから1つ選びなさい。 Origami is also easy to learn. 1 Origami is also good for your imagination. Origami is also difficult to learn. I Origami is also good for your mind. ⑤にはA~Cの文が入ります。 自然な流れの文章になる配列を, ア~エから1つ選びなさい。 A Children must follow these steps exactly. B First, origami has many steps. C This way, children can learn to follow instructions. ア A-B-C イ A-C-B B-A-C I B-C-A (5)本文の内容にあうものを, ア~エから1つ選びなさい。 If you follow some instructions for paper folds, you can enjoy many different origami shapes. Learning origami gives us a good chance to help animals on the earth. You may feel tired if you try hard to do origami carefully. I The most important thing for children's education is origami. (土)

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物理 高校生

⑷でどうしてX軸方向の運動方程式しか成り立たないのか、Y軸方向のことは考えないのかというのと、 どうして重心で考えているのかがよくわかりません

34円運動 万有引力 ◇47. 〈半円形状の面にそった円運動〉 図のように, 半径Rの半円形のなめらかな面を もつ質量Mの台が水平でなめらかな床面上に固 定されている。 半円形の端点Aから質量mの小 A m 0 R 0 物体を静かにはなす。小物体の位置を,小物体とRsing 円の中心を結ぶ線分と水平線 OA がなす角度 0. 0で表す。 また、床面には水平方向右向きにx軸 をとり、半円形の最下点の位置を x=0 とする。 重力加速度の大きさをgとして,次の問いに答え よ。 (1) 小物体が角度0の位置を通過するときの速さ」 を求めよ。 M x 0 (2) このときの小物体が台から受ける垂直抗力の大きさ N と, 台が床面から受ける垂直抗力 の大きさFを,R, M, m, sine, gの中から必要なものを用いて表せ。 また, 横軸に角度 0,縦軸にNとFをとり, Nは実線, Fは破線としてグラフをかけ。 グラフでは, とし、適切な目盛りを振ること。 次に,台の固定を外して小物体をAから静かにはなす。 M = =4 m >+ (3) 小物体が角度の位置を通過するときの速さと,台の速さ Vを,R, M, m, sin 0, X gの中から必要なものを用いて表せ。 このときの小物体の水平方向の位置 x2 と, 半円形の最下点の水平方向の位置 X を R, M, m, cose を用いて表せ。 〔23 電気通信大] 必解 48. 〈ケプラーの法則〉

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