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英語 中学生

分からないので教えて下さい!!!

次の問いの答えとして最も適当なものを、①~①のうちから1つ選べ。 Why couldn't Mr. Black and the children go for a swim one day ? 1 Because they had to go to the lake and look into the water. Because Mr. Black couldn't swim well 読解 問1 読解 3 Jill, Ellen, Bob, and Edward lived near a lake. They could go for a swim every day. A man named Mr. Black lived near the lake, too, Sometimes Mr. Black went Because the lake got dirty with garbage, oil and tires. 3 Because they could not get a boat. One day they asked him to go for a swim with them. Mr. Black said, “We can't o a swim. We may never swwim in the lake again. “Why not ?" asked Edward. swimming with the children. 下線部(ア)について,何をするために彼らは出かけたのか,日本語で答えなさい。 問2 「Because the lake is polluted." said Mr. Black. “There's a new Sign at the lake. h says: No Swimming, Polluted." “What is polluting the lake ?" asked Jill. 明3 下線部(イ) peopleが指すものとして、本文中に書かれていないものを、次の0~ ののうちから1つ選べ。 タイヤを捨てた車の所有者 “Let's go down to the lake and look at it." said Mr. Black. (ア) Mr. Black and the children went to the lake on a sunny Sunday. They looked into the water. It wasn't clean. They walked around the lake and they saw why it wasn't の 2 汚水を流した工場の人々 O 湖の近くに住む人々 clean. 3 油を流したボートの所有者 “Look at that *garbage in the water,” said Jill. “That's what's polluting the lake,” Edward saw oil floating on the water. “That oil pollutes the water, too,” said Edward. “It comes from boats on the lake." 下線部(ウ)について, 人々は何がわかっていたのか、 日本語で答えなさい。 問4 “Come here, " said Ellen. “Take a look at this. There are tires in the lake !" “Why would people throw tires into a lake ?" asked Bob. “They just don't stop to think," said Mr. Black. “But they are not the only ones who pollute the lake. The people who run that factory pollute the water, too." Bob looked at Mr. Black. ““What can we do ? How can we stop the pollution ?” he asked. “Well, we must get help from other people. We can't do it alone,” said Mr. Black. Mr. Black had a firiend who worked for a newspaper company. He asked him to help. The next day, the story about the pollution was reported in the newspaper. Many people read about the story. They talked of the pollution. They talked of ways to clean it up. One day ( People met at the lake. They came to clean it up. They cleaned out the garbage. Then they cleaned out the tires. They set up big cans. Then they put signs on the cans. The signs read, “Put Your Garbage Here.” People who lived near the lake came to help. People who had boats came to help. And, people from the factory also came to help. (ウ) They knew that it would take a long time to get the lake clean again. But they did not give up. They all hoped that someday the “No Swimming" sign would come down and the people could swim in the lake again. 注) garbage=ごみ

解決済み 回答数: 1
理科 中学生

(2)の解説をお願いします🙇🏻‍♀️ ちなみに答えは、 スクリーン上には赤色の点と青色の点がうつり、点の明るさは暗くなる。です

(3) 会話文中の( B )にあてはまる語句 ア 高い 小さい エ イ 低い ウ大きい 中の下線部について、 1ゆきさんは次のように考えました。次の文ズ の X ), ( Y )にあてはまる語句をそれぞれ答えなさい。 木片の位置を変えて、 はじく弦の長さを( 弦の張り方を変えるため,質量の( もくへん × )くする。 しつりょう Y )いおもりにこかえる。 2凸レンズと像 2 (5点x3階 しょうてんきょり スクリーン 焦点距離が10cmの凸 レンズを用いて, 図1の ように赤色光源,青色光 源,スクリーンを置く と,スクリーン上に赤色 と青色の点がうつった。 次の問いに答えなさい。 とつ C 図1 左そ 赤色光源 スクリーン上には こうげん 20 cm- 10 cm- -20 cm 焦点 $5 cm- 焦点 青色光源 凸レンズ 凸レンズ の軸 (1) スクリーン上の赤色と青色の明るい点の間の距離は何 cmですか。 (2) 図1のレンズの上半分を, 図2のように光を通さない 図2 しゃ光板でおおった。スクリーン上にうつる点はどのよ うになるか。スクリーン上にうつる点の色と, 点の明る しゃ 光板 (1) 光源から Aレンズの Aレンズ を通るこ (3) 凸レ がある ズの さにふれながら, 「スクリーン上には」 に続けて書きな さい。 (3) しゃ光板を外し, 凸レンズを図1の左側に少しずつ動かしていくと, ス クリーンをどこに置いても赤色と青色の明るい点がうつらなくなった。 ス クリーン上に明るい点がうつらなくなったのは, 凸レンズを左側に何 cm ある 動かしたときですか。 ただし, スクリーンはじゅうぶん大きいものとする。 33 TT

解決済み 回答数: 1