集合と命題です （2）のAかつＢが9－2aとなる理由が分かりません ご回答よろしくお願いします

Think 例題 90 集合の表し方(2) 1集合 181 **** ① 20以下の自然数の集合を全体集合ひとして,次のUの部分集合 A, B,C,D の包含関係をいえ=ア A={nnは3の倍数}, B={nnは6の倍数}, 2 C={n|nは3の倍数または2の倍数 D={n|nは3の倍数かつ2の倍数 } (S) 80A D ②2 全体集合をU={n|nは自然数, 1≦n≦6}, Uの部分集合を A={a, a-3}, B={2, a+2, 9−2a} とする. A∩BØ, AD2 のとき,αの値を定め、 A を求めよ. 考え方 (1) xEP となるxが必ずxEQ のとき,PCQ となり, 解答 PCQ かつ QCP のとき,P=Qとなる. まずは,それぞれの集合を要素を書き並べて表す. (2) 与えられた条件に注目する。 A∩BØ とは, AとBの中に同じ要素があるということ さらに,AD2 より,その要素は2ではないことがわかる。 (1) A={3,6,9,12,15,18}, B={6, 12, 18} より, BCA E={n|nは2の倍数} とすると, ●x A -B、 ·Q· 第3章 (ax> AB AUE を見つ E= {2,4,6,8, 10, 12, 14, 16, 18, 20} C=AUEDA より、 D=ANE={6,12,18}=B よって, B=DCACC (2) U= {1,2,3,4,5,6} である. A={a, a-3}, B={2, a+2,9−2a} で, a-3<a<a+2,A2 より, (i) 9−2a=a のとき A∩B={9-2a} なぜ? a=3 となり,このとき, (S>21- a-3=0 6の要素のうち、Aの 要素となり得るのは、 92aのみ a-3<a<a+2 より, a+2=α, a-3 全体集合の要素は1 つまり, A={0, 3} となるが,U0 より,不適. から6までの自然数で (ii) 9−2a=a-3のとき α=4 となり, A={4, 1}, B={2,6,1} はともにUの部分集合で, A∩B={1} QUINA よって、 a=4,A={2,3,5,6} (0) あり,AとBの要素が ひの中に入っているか 注意する. AnB≠Ø の確認 (

3.4枚目が問題文、5枚目が答え、1.2枚目は問題を解くときに必要な文です。 なぜこの答えになるのかがわからないので教えてください。 解くのは大変だと思うので、一問だけでも大丈夫です。

2 次は, 高校1年生の Yusuke が書いた英文です。 これを読んで、 問1~間6に答えなさい。*印 のついている語句には、本文のあとに 〔注〕があります。(34点) My father loves *dinosaurs and *fossils. He (he/them/in/collects/is/that/interested /so) dinosaur toys, small fossils and books about dinosaurs. I heard he tried to find fossils along the river with my grandparents when he was young. When I was younger, my family took me to the science museum every year. My father loved looking at the dinosaur fossils there, and he always explained them to me. So, I got interested in dinosaurs and fossils, too. My father has a restaurant near our house, and he displays some dinosaur teeth fossils in the restaurant. One day, he introduced one of his customers to me. The man, Mr. Shirai, also loved dinosaurs and fossils, and often visited museums all around the world, such as in America, Canada and China. He realized that my father was interested in the same things because of the fossils in the restaurant. They became good friends. One day in September, Mr. Shirai came to my father's restaurant and showed me a fossil. It was a beautiful fish fossil in a brown stone plate. I was surprised to see it, Mr. Shirai A me a lot about the fossil. He traveled to Germany to look for fossils, and he found many fossils there such as fish, animal bones and leaves. The area is very famous for "archaeopteryx fossils. I once saw a picture of the archaeopteryx fossil in a book, so I wanted to go to see the fossil in -4-

1️⃣の(1)〜(7)の答え合わせをしたいのですが 答え教えて欲しいです。

にあてはまる語を書きなさい。 □(1) 父は毎日たくさん書類を読みます。 My father reads papers every day. (2) ウエダ先生は授業を始める前に、私をみんなに紹介しました。 文法 Before Mr. Ueda began the class, he 1 次の英文を ( 内の指示にしたがって書きかえなさい。 me everyone. (1) Let's buy some ice cream. (下線部について has a lot of fruit in it という説明を加えた文に) (2) He showed me a picture. (下線部について looked very old という説明を加えた文に) □(3) Did you see the car? (下線部について passed *in front of that building just now という説明を加えた文に) □ (4) This is a bottle. The bottle has a red cap. (関係代名詞を使って1文に ) *in front of...:…の前に 口(5) The boy has some books. The books have a lot of pictures in them. (関係代名詞を使って1文に □(3) 父は母が My father wants to g 4) 生徒たちは地球を救うよ 2 The students want t )内の語 (句) を使っ □1) これがコンピューターG 2)その老人はすばらしい音 次の質問に関係代名詞を □ What kind of robot d □ (6) My brother bought a car. The car has only two doors. (関係代名詞を使って1文に □(7) I need a bag. The bag can hold all of my textbooks. (関係代名詞を使って1文に) 重要次の日本文になる女になるときに リーディング 次の英文を ジンが夏休みの思い出に This summer I we Japanese popular musicians. The

教えてほしいです

① 次の各組の英文がほぼ同じ内容を表すように,に適する語を書きなさい。 (1) Looking at his alarm clock, he turned pale. he at his alarm clock, he turned pale. (2) As I hadn't heard from him, I decided to visit him. (3) If other things are equal, I will take this job. Other things ding heard from him, I decided to visit him. I will take this job. arrived at Naha around noon. reading, he listened to music. (4) Our plane left Haneda at ten, arriving at Naha around noon. Our plane left Haneda at ten, (5) Since he was tired of reading, he listened to music. ever h (6) My father sat on the sofa, and his legs were crossed. My father sat on the sofa, his legs (7) After the sun had set, the boys started for home. The sun the boys started for home. (8) If we speak generally, Japan has a mild climate. Japan has a mild climate. (9) Her mother having left her room, she began to cry bitterly. her mother (10) Unable to swim well, he doesn't like the sea very much. he left her room, she began to cry bitterly. swim well, he doesn't like the sea very much. (11) Turning to the left, you'll find a tall building on your right. you do/nothing) to the left, you'll find a tall building on your right.

至急🏃💦💨現在完了形の疑問文をつくって長文日記を書くという課題が出されました。たとえばどのように書けばいいでしょうか？

英文の添削お願いします🙏🏻 英検のエッセイ練習で書きました。

Topic Agree or disagree: People will stop subscribing to printed newspapers in the future. I agree with the idea that people will stop subscribing to printed newspapers in the future. I have two opinions why I think so. First of all, to print newspapers uses a lot of papers. They are made by wood that is important nature material. The kind of nature things has limit to use, so we should not use them too much. The plants also play role in the keeping air clean. This is the reason why I think it is bad for environment. Secondly, the printed newspapers are too big to carry. Thesedays we can get it online and we cand read it all the time wherever you are. For example on the train, in office, in café and so on. For these reasons, I think people will stop subscribing printed newspapers.

画像の(1)〜(5)わかる方いたら教えてください。

[3]空欄にふさわしいものを選択肢から選び, 記号で答えなさい。(教科書 PP.8~10) (1) After ( ) through the gate, you will find the entrance to the building. [7. pass 1. passed . passing I. to pass] (2) The paper crane is a ( [7. symbol 1. symbol ) of peace in Japan. . signature I. symbolize] (3) This painting was ( ) a famous novel. [7. inspire 1. inspiration . inspired I. inspired by ] (4) In ( ) to this task, I have to finish writing an essay. [7. add 1. adds . addition 1. added] (5) His idea is ( ) in the famous church. [7. embody 1. embodying . embodies I. embodied]

画像の(1)〜(5)わかる方いたら教えてください。

[3]空欄にふさわしいものを選択肢から選び, 記号で答えなさい。(教科書 PP.8~10) (1) After ( ) through the gate, you will find the entrance to the building. [7. pass 1. passed . passing I. to pass] (2) The paper crane is a ( [7. symbol 1. symbol ) of peace in Japan. . signature I. symbolize] (3) This painting was ( ) a famous novel. [7. inspire 1. inspiration . inspired I. inspired by ] (4) In ( ) to this task, I have to finish writing an essay. [7. add 1. adds . addition 1. added] (5) His idea is ( ) in the famous church. [7. embody 1. embodying . embodies I. embodied]

この文章に文構造を書き込んでいただきたいです🙇‍♀️

文章構造図 英文の黒網⇒キーセンテンス ...⇒別冊ナビブック本文解説 5 1 The recipe for making any creature is written in its DNA. So last year, when geneticists* published the near-complete DNA sequence of the long-extinct woolly mammoth, there was much speculation about whether we could bring this giant creature back to life. 10 e Creating a living, breathing creature from a genome* sequence that exists only in a computer's memory is not possible right now. But someone someday is sure to try it, predicts Stephan Schuster, a molecular biologist at Pennsylvania State University and a driving force behind the mammoth genome project. 3 So besides the mammoth, what other extinct beasts might we bring back to life? Well, [besides) it is only going to be possible with creatures for which we can recover a complete genome sequence. (1)Without one, there is no chance. And usually when a creature dies, the (=Without a complete genome sequence, there is no chance of bringing an extinct creature back to life.) DNA in any flesh left untouched is soon destroyed as it is attacked by sunshine and 2 leave O done) bacteria.

こちらの問題の回答の解説いただけないでしょうか。 正解は4番らしいのですが、解説読んでもしっくりこず、、、。 また、1番はなぜ正解から外れるのでしょうか。 何卒 よろしくお願いいたします。

4 Check の前半 (課題曲) 及び後半 (自由曲) の演奏順について次のことがわ A~Eの5つの学校が、 ある吹奏楽コンクールに出場する。 各校 かっているとき、 後半の演奏順について確実にいえるのはどれか。 ただし、このコンクールに出場するのはA~Eの5校のみである。 ア 前半の演奏順は、Aが1番目、Bが2番目、Cが3番目、D が4番目、 Eが5番目である。 イ 前半の演奏順と後半の演奏順が同一である学校はない。 ウ各校とも後半は、前半と同じ学校の直後に演奏することはな い。 (例えば後半はB→Cという順序はない。) 1 Aが5番目のとき、B~E のいずれもが1番目になることが あり得る。 2 Bが3番目のとき、4番目は必ずAである。 3 Cが2番目のとき、3番目は必ずB又はEである。 4 Dが1番目のとき、5番目は必ずA又はBである。 5Eの直後がDのとき、 1番目は必ずB又はCである。