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English Senior High

英検準二級のライティングのEメール問題についてです。採点お願いします。よかったら、12点中何点かも教えてくださると幸いです。 回答:I would lite to ask you tow questions about a robot pet.First, how much... Read More

●あなたは、外国人の知り合い (Alex) から、Eメールで質問を受け取りました。 この質問にわかりや すく答える返信メールを、 に英文で書きなさい。 ●あなたが書く返信メールの中で、 Alex のEメール文中の下線部について、あなたがより理解を深め るために、下線部の特徴を問う具体的な質問を2つしなさい。 ●あなたが書く返信メールの中で [ に書く英文の語数の目安は40語~50語です。 ●解答欄の外に書かれたものは採点されません。 (1) ●解答が Alex のEメールに対応していないと判断された場合は、0点と採点されることがあります。 AlexのEメールの内容をよく読んでから答えてください。 Hi! の下の Best wishes, の後にあなたの名前を書く必要はありません。 Guess what! My father bought me a robot pet last week online. I wanted to get a real dog, but my parents told me it's too difficult to take care of dogs. They suggested that we get a robot dog instead. I'm sending a picture of my robot with this e-mail. My robot is cute, but there's a problem. The battery doesn't last long. Do you think that robot pets will improve in the future? Your friend, Alex Hi, Alex! Thank you for your e-mail. Best wishes, (出典:https://www.eiken.or.jp/eiken/info/2023/pdf/20230706_info_eiken.pdf)

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English Senior High

下線部Dと答え.ウはなぜ同じ用法なんでしょうか 教えてください🙏

closer to reality. Researchers have investigated the use of electricity to stimulate vision for nearly half a century. In the 1960's, a *physiologist implanted 80 electrodes on the surface of a blind person's *visual cortex, a region at the back of the brain. Wireless stimulation of the electrodes made the patient see spots of light known as *phosphenes. This is the first stop for visual signals coming from the eye. (D) By the 1980's, a crop of *ophthalmologists began considering a narrower and seemingly easier-to-solve problem: making *prostheses for the eye. They suggested that degrade *photoreceptor cells called *rods and cones, still leave large portions of the retina intact even after a patient has become totally blind. The way to stimulate the remaining functional cells was proved *feasible in the mid-1990's. A device consisting of a tiny video camera perched on the bridge of a pair of glasses, a belt-worn video processing unit, and an electronic box, was developed recently. The electronic box issues signals to an implant behind the patient's ear that has wires running to a grid of 16 electrodes affixed to the output layer of the retina. The video processor wirelessly transmits a simplified picture of what the camera images to the box, and then the retinal implant stimulates cells in a pattern roughly reflecting that information.

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English Senior High

写真の答えが書いてあるところはあっているかと書いてないところの答えを教えてください🥲🙏🏻

1 : had +£/££?£: had been V-ing 過去のある時点を基準に、それよりさらに過去の出来事について述べるために使われる 「(その時) すでに~していた」 「(その時まで) ずっと~していた」) さらなる過去 過去のある時点 現在 1 This village had lasted for 1,000 years before it disappeared. (p.62) 2 Yamaoka Nobutaka had spent five years visiting 100 Jomon sites before filming a movie. (p.66) 3 When my first flight arrived in Jakarta, my next flight had already left. 4 Before that, they had been moving from one place to another. (p.62) 5 We had been talking for an hour when my mother came in. Exercises 1 Complete the sentences using the words in parentheses. e.g. I went to Sam's house, but he wasn't at home. (he, go, out) He had gone out before I arrived. 1. A woman talked to me on the street. I knew her face. (I, meet, her) I thought I had meet her somewhere before. 2. It was really nice to see him again. (I, not, see, him) 実際の In fact, I had ところは、 not seen him for three years. 3. Katy was so happy with the Japanese doll you gave her yesterday. (look for) She had been looking for it for many years. 2 With your partner, make up conversations with your own ideas. "B" uses "had done" or "had been doing," and "A" responds with comments or questions. 1. A: Did you enjoy the movie with your sister? B: Not really. Before we arrived at the theater, A: 2. A: Hey, you looked very tired when we met last Friday. What was wrong? B: I was so busy last week. I A:

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Mathematics Senior High

(2)の問題で、赤丸で囲ってある式がどこから出てきたのかと線が引いてある部分がどのように変形したらこのようになるのかが分かりません 教えてくれると嬉しいです🙇

練習 Step Up 310 第5章 指数関数と対 章末問題 173 (1)x1,y1xy'=8 のとき (10gsx) (logy) の最大値と (2) αは定数で, a>1 とする. ax +y=2a のとき, 10gax +1oga(x+y) の最大値を求 めよ.また,そのときのx,yの値を求めよ. (1)xy=8より、底2で両辺の対数をとると, logzxy=log8 log2x+210gy=3 logzx=X, logy=Y とおくと, x1,y≧1より, より、 X=logxlog1=0 Y=logxylog1=0 log2x+2logy = X +2Y=3 Y=3-X20 2 したがって, 0≤x≤3 (logzx) (logy) =XY =X.3x 底が1より大きいので、不 号の向きは真数の大小と一致 (gol-1)= 00-1)= 0123 OF == 9 8 0≦X≦3 のとき, グラフは XYA 最大 8 最小 01 S=x.gol O 3 3X 2 最小 X=212 のとき,log:x=2/2 03 右の図のようになる. よって, 最大値,最小値 0 '8' (2) 真数条件より, x>0,x+y>0 ax+y=2a より,y=2a-ax だから, 3 x=21=2√2 BY=2のとき,logzy=" x+y=x+(2a-ax)=2a-(a-1)x>0 より,y=24=18 このようにして,x,yの値 5 2a α>1より, x< a-1 2a したがって, 0<x<- ...... …① a-l を求めることができる. Ka-1>0 また, logax +1oga(x+y= logax (x+y)...... ② x(x+y)=x{x+(2a-ax)}= (1-a)x2+2ax まずはx(x+y) の最大値を 求める.ol -(1-a)(x-a +(x a² ・3 a-l a-1>0 2a 1-a<0, 0<< だから, ①における a-1 x(x+y) の最大値は, a a-1 したがって, logax(x + y) の最大値は, loga-1 よって、②より, 10gax +loga(x+y) の最大値は, a² a² 10ga a-l このとき,③より a x=- a-l y=2a-ax であるから, 底αが1より大きいので,真 数x(x+y)が最大のとき, 10gax (x+y) の値も最大と なる. gol ol a² y=2a- a-l

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