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英語 高校生

アから順番に12131であってますか? わかる方教えてください!! お願いします!

例3.次の英文は 「磁極の移動」について述べたものです。(ア) ~ (オ) に入れ る最も適当なものを選択肢から選びなさい。 Earth has two sets of poles: the geographic poles and the magnetic poles. The geographic poles are located at the northernmost and southernmost ends of the earth. The location of the magnetic poles, on the other hand, are ( ア ) moving. This fact has several implications for navigation and transportation. Shifts in the position of the North Magnetic Pole are nothing new. Since 1831, scientists have been tracking its location. The movements are caused by changes in the flow of swirling molten iron in the earth's core which affect how the earth's magnetic field behaves. What is surprising to scientists is the speed at which the pole has been moving in recent years. For most of the 20th century, magnetic north was located around the northern parts of Canada. It drifted around, moving slowly north at an ( イ) speed of approximately 10 kilometers per year. In recent decades, that rate has increased significantly to about 55 kilometers per year, The North Maggnetic Pole is now moving away from Canada toward eastern Russia. While scientists can't fully explain how changes in the earth's molten core are affecting the pole's movement, they can map the earth's magnetic field. Doing so allows them to ( ウ ) the rate of change over time. This, in turn, provides information on how the magnetic field may shift in the future. Information on changes to the earth's magnetic field is used to produce the World Magnetic Model (WMM). This model is used as the basis for all forms of modern navigation, from how ships move at sea to mapping software in smartphones. ( エ ) inthe model、 caused by shifts in the real location of the North Magnetic Pole, can seriously impact almost all foms of modern transportation. The model is updated every five years, but in 2018, during routine checks of the 2015- 2020 model cycle, scientists noticed a problem, Because of the rapidly shifting pole, the WMIM was close to being outside the acceptable limits for navigational errors. This forced the release of an updated version of the model, It was revised (オ ) in2020, and the current version is expected to last until 2024, As well as kecping track of the WMM's accuracy, scientists continue investigating why the magnetic ficld is changing so dramatically, This essential work will ensure a safe joumey for everyone navigating their way through the world.

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数学 高校生

数Ⅲの数列の極限です。 anやbnをなぜ写真のように任意で置くのか分かりません。それぞれなぜ逆数や√で置くのかもわからないです。解説お願いしますm(_ _)m

95 数列 {an}, {b»} において, 次の命題の真偽をいえ。 数列{an}, {b»}において, 次の命題の真偽をいえ。 (2) {anbn}, {an}がともに収束するならば,{b}も収束する。 (1) lim(an-bn)=D 0, liman = α ならば limbn = α (3) lim(an+1- n) = 0 ならば {an}は収束する。 数列の極限の性質(1) 1分 95 1→ 0 1→ 00 →0 式を分ける 数列 {am), {b»}が収束するならば lim(an+ bn) = liman+ lim6,ns limanbn = limanlimbm カ→ 0 1→ 0 れ→ 0 1→ 0 (1) ③ lim(an-bn) = 0 より liman-limbn= 0 合 limb,が収束するとは ガ→ 0 n→ o → 0 誤り 2→ 0 限らないから,誤り。 anbn lim れ→ 0 ln B -a, Bがどのような数でも成り立つか? lim bn → 0 (3) 反例として,lim(an+1- an) =0 であるが liman = o となる {an}を考える。 第→ 00 不定形 o - o で0に収束< Action》数列の収束の判定は, 収束する数列の和 差 積·商を考えよ (1) limbn = lim{an- (an-bn)} = liman lim(an- b) {b}の収束,発散がわか らないから,単純に lim(an-bn) 1→ 0 n→ 0 n→ 0 c0- =α-0 = a したがって,この命題は真である。 = lima,- limb, ガ→ 00 とはできない。 an bn = nとすると n |lima, = 0 のとき #→ 0 limanba 11 Tim n→o n liman lim n→ 0 n anbn limb, = lim B = 0 n→ 0 n→ 0 0 1→ o とはできないから, lima, = 0 となる例を考 よって, 数列 {an6,}, {an}はともに収束する。 ところが, limbn limn =8 となり,数列 {bn} は発散 える。 2→0 8t4 する。したがって, この命題は偽である。 反例,すなわち {an+1-an}は0に収束 るが{an}が発散する色 をさがす。 an = Vとすると m(an+1-4m) =Dlim(/n+1-/n) O- 1 = 0 lim 2→ 0 n ところが, liman = lim n=8 となり, 数列 {am} は発 n→ 0 2→ o 敗する。したがって, この命題は偽である。 Un R ならば lim bn B →0 2

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英語 高校生

赤い枠の単語を必要があれば品詞を変えて埋めるのですが、よく分からないので教えてください。

Vocabulary Practice A. Completion. Complete the paragraphs below using the correct form of the words in the box. One word is extra. hazardous discard pile substance notify infrastructure Reuse and recycle: these well-known ideas for dealing with trash are being employed to handle e-waste such as old computers, cell phones, and televisions. Many companies send used electronic items from the United States and the European Union to developing nations. They claim to be recycling, and also helping the developing world modernize its Customers shop for used televisions at a secondhand electronics market in Lagos, Nigeria. - However, the reality may be quite different. The Basel Action Network of Seattle, Washington, recently reported that three-quarters of the supposedly reusable electronics shipped to Lagos, Nigeria, are in fact broken. Consequently, 2.. roads. Often it's picked apart by the desperately poor, who come in contact with toxic 4. 5. Richard Guttierez of the Basel Action Nerwork believes companies in developed nations pay lip service' to recycling while actually disposing of their e-waste as cheaply as possible, leaving the developing world to deal with the problems it causes. of e-waste end up being 3.. - along rivers and -Such as lead-in the broken equipment. Lead is known to be especially to the health of growing children.

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英語 高校生

お願いします

Lesson 7 教科書p. 98~99 Japanese Dishes from Abroad Part Sのd menl 城 0 A2 10. source 図sS.rs) B111.lead 回 li:d] B2 12. campaign国 kempéin) A1 13. supermarket 図 [sd:parmáxrkat CD-2 1 Reducing CO2 emissions / is now one of the mo 26. increase 動 inkri:s) .cafeteria 図(keatioria) 10 の important problems / that we have to tackle. // Ther。 A2 8. area 図éoria) 9. attention 圏 aténfan] is a report / saying / that choosing local products / is 0 effective. // The number of people / who are interested 内容を理解しよう in food miles / has been increasing. / の Doducing CO2 emissions is now one of the most important problems 2 In 2008, / some university cafeterias in the Kansai that we have to tackle. の二酸化炭素排出量を減らすために効果があるとして紹介されていることは何です area / showed food miles and CO2 emissions / on the か。3語の英語で答えなさい。 6 enu. // Many students said / that they had never の The number of people who are interested in food miles has been paid attention / to the sources of food / before. |/ “I increasing. Q has been increasing の主語は何ですか。1語の英語で答えなさい。 didn't know / where our food came from,” / one student 10 の said. // “Now / the information on the menu / leads 6 Many students said that they had never paid attention to the sources of food before. me to choose food / with fewer food miles / and CO2 Q the sources of food とほぼ同じ内容を表す表現を,第2パラグラフから書き出し なさい。 emissions.” |/ 0 “Now the information on the menu leads me to choose food with 0 3 “Food-mile campaigns” have started / in many fewer food miles and CO2 emissions.” Q the information の具体的な内容を,英語で答えなさい。 0 parts of Japan. // You may see information / about food 15 and miles / at supermarkets and restaurants. // B もう一度Part 3 全体を読み,次の要約文を完成させなさい。 )量を減らすよう努めなければならず、フ 今日,私たちは二酸化炭素(1. 122 words )を持つ人が増えている。2008年,いくつかの大学食堂 )と二酸化炭素排出量がメニューに表示され,多くの学生が食物へ )のあちこちではじまっ ードマイルに(2. 単語を調べよう 内に日本語の意味を補いなさい。 で,(3. の関心をより示した。「フードマイル運動」が(4. B1 1. reduce 動 [rid6)ú:s] 2. emission 図 (imifan] B2 3. tackle 動 [tek] ている。 A2 4. local 岡16ukl] 7 Part 3

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英語 中学生

わからないです。 教えてください。

5 Read and Think 1 単語の確認 次の日本語に合うように、 に適切な語を入れて英文を完成しましょう。 (1) あなたはこのボトルを楽に持つことができます。 this bottle easily. You can (2) 私の家族はデイビッドに再び会ってうれしく思いました。 My family was to see David again. (3) 彼女にはかわいい赤ちゃんがいます。 She has a cute (4)心配しないでください, それはよくある問題です。 Don't worry, that's a problem. 基本文·重要表現の確認 次の日本語に合うように, (1) 彼女は自分が正しいと確信しています。 に適切な語を入れて英文を完成しましょう。 She's that she is right. (2) 私の先生は私が英語に興味を持っていることをうれしく思いました。 My teacher was glad I was interested in English. (3) 私は彼がすぐに元気になると確信しています。 I am he will be fine soon. けん (4) あなたは健が今日宿題を終えることができると確信していますか。 you that Ken can finish his homework today? くり返しチェック! 次の日本語に合うように, ( (1) 私の父は忙しかったので, 皿を洗うことができませんでした。 )内の語句を並べかえて英文を完成しましょう。 (文頭は大文字に) My father couldn't wash the dishes ( was / he/because/ busy ). (2) もしあなたが疲れているならば, すぐ帰宅するベきです。 (tired / you /if/are), you should go home soon.

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