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English Senior High

(2.5.7)の訳し方がわかりません。 2 私たちの少ない時間を測定することに成功し宇宙の偉大な神秘を思い出させられた。 5 時間と変化は漏れた(リンクは結ぶとも訳せるのですか?) 7 私たちはある日、暗と光とそれぞれ名付けた としか訳せません

2 次の英文を読んで、以下の問いに答えなさい。 If you can read a clock, you can know the time of day. But (n)(knows/time itself / what is / no one / .) We cannot see it. We cannot touch it. We cannot hear it. We Ense tiniest parts of time, time remains one of the great mysteries of the universe. know it only by the way we mark its passing. (2)For all our success in measuring the 測定 One way of thinking about time is to imagine a World without time. There could be no movement, because time and movement cannot (3)(separate). A world without time could exist only (4)as long as there were no changes. (5)For time and change are linked. When something changes, you know time has passed. In the real world, changes never stop. Some changes happen only once in a while, like an eclipse of the moon. (A) 日 happen repeatedly, like the rising and setting of the Sun. People have always noted natural events that repeat themselves. When people began to count some events, they began to measure time. 彼ら自身 In early human history, the only changes that seemed (6)(repeat) themselves evenly were the movements of objects in the sky. The most easily seen result of these movements was the difference (B) light and darkness. The sun rose in the eastern sky, producing (C). It moved overhead and sank in the

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English Senior High

Reading Advantages3 です。 穴埋めが分からないので教えてください。

ble? a. president b. cleaner B. Complete the paragraph with items from the box. Two items are extra. actually commented expected made the headlines media neighboring potentially riddle significant spectacularly visible worship shapes (3) in the local (4) "This stone is for people who celebrate with fire." Archaeologists in England thought they had made an amazing discovery in July 2003, when tourists on a beach found ancient carvings on a large block of stone. The archaeologists believed that the discovery of the stone, which had been imported from Norway in the 1980s and used to make a wall, was (1). The carvings of two snakes, a dragon, and other Experts translated the stone to say, very (2) However, two months later, the archaeologists were surprised when the (5) of the carvings was solved by a fifty-year-old local builder, Barry Luxton. The man, who had seen a photograph in a newspaper, told them that he was (6) the one who had made the shapes - in 1995! Luxton said that over a period of three days he had made the carvings for a celebration on a (7) beach that was going to be held by a group of druids people who nature. However, the block did not end up being moved to the other beach and (8) was eventually covered by sand. Recent bad weather blew the sand away, making the carvings (9) again. Luxton was surprised; he really never (10) that his work would become so famous. Review 1 - 5 25

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Chemistry Senior High

化学です。 (4)の解説のマーカー部分がわかりません。 私は今までこのような計算は単位も約分して計算していたので、今まで通りNaの単位は(個/mol)だとして計算していました。 それでこの式を計算すると aの3乗×d/2(g)×Na(個/mol)が(g/mol)という単位に... Read More

発展例題 1 結晶格子と原子量 問題 7.8 鉄の結晶は体心立方格子であり,その単位格子の一辺は a[cm〕である。 この結晶の密度 をd[g/cm3], アボガドロ定数をN [/mol] 円周率を²として, 次の各問いに答えよ。 ただし, やはそのまま用いてよい。 (1) 鉄原子の半径は何cmか。 この結晶格子の充填率〔%〕を求めよ。 (2) (3) 鉄原子1個の質量は何gか。 (4) 鉄の原子量を求めよ。 考え方 (1) 1つの面内の対角線で 立方体を切断すると,各原 子は切断面内の対角線方向 で接している。 三平方の定 理から, 原子半径を求める。 (2) 体心立方格子には2個 の原子が含まれる。 また, 4 半径rの球の体積は 1/23 rr3 -πr³ で求められる。 [落率〔%〕= 単位格子中の原子の総体積 単位格子の体積 ×100 (3) 単位格子に含まれる原 子の総質量は,密度×単位 格子の体積で求められる。 (4) 原子量は, 原子1個の 質量×アボガドロ定数で求 められる。 解答 (1) 原子半径r[cm〕は,図から, (4r)²=a²+(√2 a)² =√3a(cm) 4 r= (2) 単位格子には2個の原子が含まれ るので,原子の体積は, 4 √3 ла³ 8 立方体の体積は α [cm²] なので, ³ [cm³] x2= 充填率= √√3 ла³ - [cm³] 8 a³ [cm³] d[g/cm³) xa³ [cm³] 2 - [cm³] ×100= したがって, 原子量は 25√3 π 2 a'd (g 2 (4) モル質量=and [g]×NA[/mol] 2 (3) 原子2個の質量は,密度×単位格子の体積で求められ るので,原子1個の質量は, a³dN 2 = √2a √√2a である。 a 25√/3 π [%] T 2 a³dNA 2 [g/mol]

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