Grade

Type of questions

English Junior High

Q. 中学英語 長文読解  (2)についてです。  答えはアなのですが、どのような並び替えになるのか教えてください‪🙇🏻‍♀️՞

5 次の英文を読んで、あとの問いに答えなさい。 < 星野改 > High schools in Minnesota have a problem. Many students are late to school. They are often tired. Some students fall asleep in class. They often get sick, too. The local governments take that as a problem. They make a small change. It helps a lot! What do they do? They start the school day a little later. A This small change makes a big difference. Why? Most teens are very tired early in the morning. They usually don't go to bed until after midnight. In the morning, they wake up between 6:00 and 6:30 for school. So they don't get enough sleep. They are still tired early in the morning. But after the change, teens are more awake and (be ready/class/to/in). A later start time is better for a teen's body clock. B Everyone has a body clock. An adult's body clock works like this: most adults get tired between 9:00 and 11:00 at night. They usually go to bed before midnight. Adults can get up early in the morning. It's not a problem. But a teen's body clock is different. Teens don't get tired at midnight. They usually stay up later. But early in the morning, they need more sleep. C The schools in Minnesota pay attention to the teen's body clock. They change the start of the school day from 7:20 a.m. to 8:40 a.m., 80 minutes later. Other schools in the United States change their start times too. Some schools change the time by only 30 minutes, but they still get good results. ( 2 ), the results are amazing! 3 (Many) students are on time. Morning classes are easier to teach. Students are getting ①(good) grades. Students have fewer illnesses, so they are ⑤(little) absent. In Minnesota, there is another important effect: fewer students drop out of school or change schools. D Today, more and more high schools are starting later. Most schools can't start two hours later. But they can change the start time a little. A small change can make a very big difference! Just ask the students. 注 Minnesota ミネソタ (アメリカ合衆国中央北部の州) (1) 次の英文を入れるのに最も適する位置を、本文中のA~Dから1つ選びなさい。 Now the students are happier, and also the parents and teachers too. (2)下線部①の ア be (3)② ( 内の語を並べかえて正しい英文を作るとき、3番目にくるものをア~エから1つ選びなさい イ ready ウclass I to )に適するものを、ア~エから1つ選びなさい。 イイ イ However ウ In fact I Even so

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Mathematics Senior High

〔2〕について、印をつけているところからわかりません

9:43 • 4G https://www.lentrance.com/reader/sp_vi... D 頻出 164 三角関数の最大・最小 [4] 合成の利用 ★★☆☆ (1) 関数 y= sind√3 cost (0≦0≦z) の最大値と最小値, およびそ のときの0の値を求めよ。 (2)関数 y=4sin0 + 3cos0 (0≧≦)の最大値と最小値を求めよ。 « ReAction asin0+bcos0は, rsin (0+α) の形に合成せよ 163 サインとコサインを含む式 (1) y=sin0-√3 cos 合成 ↓ y = 2sin(0-3) サインのみの式 05 0 5x S Is (0) 0 ≤2 2 sin (0-3) ≤0 図で考える (2) 合成すると,αを具体的に求められない。 →αのままにして, sinα, cosa の値から, αのおよその目安をつけておく。 = y-sin-√3 cos-2sin(0) 0505-50-135. 2 3 よって 2 sin(0-3) ≤1 0- したがって -√352sin(-)52 01=1 すなわち のとき最大値 2 = π すなわち 0 0 のとき 最小値3 162 (2)y 4sin0+3cos0=5sin (0+α) とおく。 4 3 ただし, αは cosa= sina ・① を満たす角。 5 より usotus conta ① より << であり, sine <sin (+α) である から sin (0+α) ≦1 5 √3 3章 10 加法定理 *sinessin (0+α) ≦1 3≦5sin(+α) 5 より, yは 最大値 5, 最小値3 解答 164 (1) 関数 y= sind-cos (0≦≦)の最大値と最小値,およびそのときの 0 の値を求めよ。 (2) 関数 y=5sin0 +12cos (0≦0≦x) の最大値と最小値を求めよ。 × 293 p.311 問題 164 MENU ON 完了

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