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英語 高校生

問1 英文に文化は農業にシフトしたってあったから、選択肢③の狩猟や採集に加えてっていうのがひっかかったんですが農業にシフトしたのはseveral cultureだからでしょうか?それとも農業にシフトしたっていっても完全にはシフトしてないからですか??

Modern humans evolved in Africa about 200,000 years ago and began You are studying about the world population. You are going to read the Then just 12,000 years ago, several cultures shifted from hunting and migrating to other parts of the globe about 100,000 years ago. Our earliest ancestors relied on hunting and gathering their food to survive. Only a finite number of people could be supported on the wildlife in an area for a to control its own food supply. Civilizations grew and so did the human 30 B*★★ following article to understand how the world population has grou limited amount of time. gathering to farming. Humans became the first and only species a population. About 2,000 years ago, the estimated world population wo. 170 million people. The largest civilizations at this point in history wew. the Roman Empire and the Han Dynasty in China. The next 1,700 years were marked by the growth and conquest of empires, global navigation and exploration. People had yet to understand the science behind life and death, or how to prevent and treat most diseases. As a result, many children died young. Our global population grew, but slowly, reaching / angh waibdlie, aumans in Alfs about 500 million around 1500 and 1 billion by 1804. By the late 1700s, the world was embarking on the Industrial Revolution, a period of history in Europe and North America, where there were significant advances in science and technology. The Industrial Ainge and Chia Revolution brought the invention of the steam engine and the use of mlontrl the l ie Romam humans start electricity. During this period, there were also many inventions that promoted longer life. These included improvements in farming, nutrition, medicine and sanitation. Now, people were able to fight once-deadly Banpe and germs, produce more and different kinds of food, and cure more illnesses. Before long, these new discoveries and inventions spread throughout the world, lowering death rates, especially among children, and improving people's quality of life. Now you might be wondering what happened to the birth rates while the death rates were coming down. In Europe and North America, on re attes sa/and lar mle Acoher thar deuath pgoulatron had doudled to ton er bitkien br1974(0m pits decran groo tas beer oing Dulton pes Hamans fiaing adut.

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英語 高校生

3番の問題がわかりません。

to recover from* the learning problems this brings. So, keep your usual sleep-wake cycle stay up late (or even all night!) and get up around noonduring vacations. As a result, they students can't easily learn new things in those classes. Why is this? It's because ty Every student knows that the first classes after long vacations are very tiring, Meay Reading 36 Writing 34 Grammar 10点 10点 10 Listening 00 Social Media 100円 Reading 長期休暇中の不規則な生活で, 時差ぼけ (jet lag) にならないように気をつけましょよう。 have “jet lag," Their sleep-wake cycle* is delayed*, and that causes them trouble when t 5 vacation is over. You may think, “That's not an unusual thing." However, a recent shrk has found that the problem is much ( ② ) than you may think. How does jet lag affect* people's learning abilities? To find out the answer, scientis did some research on two groups of hamsters: one group was given six-hour delays in their daily cycle for four weeks while the other kept their usual cycle. After that, the 10 hamsters were tested on their learning abilities. The result was clear. The hamsters with jet lag had great trouble with simple work which the others could easily do. The researchers also saw this difference evena month after the hamsters with jet lag returnel to their usual daily cycle. They say that the loss of a usual daily cycle damages the part u the brain which controls memory. This causes long-term* memory problems. If you change your daily cycle during long vacations. it takes you more than a nioe 15 even during vacations, and you will ( (⑤) ) in school, 247wons) (注)sleepwake cycle : 起きのリズム affect:…に影響を与える delay:動…を遅らせる [遅れい long-term: 長期間の recover from から回復する 20 UNIT7

未解決 回答数: 1
英語 高校生

答えが分からないので回答をお願いしたいです!

660 No 助動詞 (1). LE 「could speak English then. (当時私は英語が話せた。) Could you shut the door? I thought he would come here. Would you lend me a pen? (ペンを貸してくださいませんか。) He wouldn't agree with me. I said I should go. You should stay home now.oy(あなたは今は家にいるほうがよい。) (ドアを閉めてくださいませんか。) (私は彼はここに来るだろうと思った。) D 1 could 2 would not (彼はどうしても私に同意しませんでした。) (私は行くだろうと言った。) 3 should t 4 その他の語句 can't be 「~のはずがない」 be able to 「~できる」 must not 「~してはいけない」You must not tell a lie. He can't be tired. She will be able to swim. hiw ie (彼は疲れているはずがない。) (彼女は泳げるようになるだろう。) (うそをついてはいけない。) Stul DOD DUDI ODIDS Sot A 次の( )内から適当なものを選び, その記号を書きなさい。Wogs 0oY 2'ail2 0 Mary(ア can't イ won't ウ couldn't) see her sister yesterday. y sd b'1( mode woH ( ) イ Should ウ Must) you give me your bag? イ running ウ to run) very fast. 2 (ア Would gn 1A C ィ would ウ shall) do the work. ov 29Y( ) 3 Ken is able(ア run の He said he (ア will 5 (ア Would イ Should ウ May) you mind opening the door? 1sd do ob 1st W 1ord 1o1 gnid bT B 次の各組の文が同じ意味の文になるように,( )の中に適語を入れなさい。 25nsgat low nol We can run fast. の We are 2onngct tuods、 dood lgad ns 19go1 l l' 2 1 ) run fast. LII 290 2on ce uoxt 2gmq Snt Don't go out now. 2 You d-boo) ) go out now. I couldn't play the guitar. 3 I( noko8 moit on jiziy o1 enimoo e 19aie vM ) to play the guitar. uov 0ot ai 151at Do I have to call you before I come tomorrow? o gnitiaiv at 19teie vM )I call you before I come tomorrow? vaud oot at olaie VM の Snqat dil no( 00 C 次の文を( ① He say he will go at once. )内の指示に従って書きかえなさい。 wou gnimis1 1 21 (say を過去形にして) ned oggid ovloT al ② I think she will become a good scientist. (think を過去形にして) o0 3 I can't finish the work. (過去の文に) nal datgnt desge 6 Primer

未解決 回答数: 1
英語 高校生

答えが無くて分からないので教えて欲しいです

SIMなし合 22:01 Cop 【1】次の英文を読んで, 設問 1~12に答えなさい。 なお, *印の語(句)には文末に注 がついています。 Modern examinations of working conditions in British and U.S. industry in the nineteenth and early twentieth centuries concentrate mainly on the experiences, Complaints, and overall difficulties of working-class laborers. The first complaint that a majority of industrial workers had was that their workdays* were too long. The average (ア) of hours in a shift varied from industry to industry, from place to place, and from era to era. Workers in British and American textile mills* in the early to middle 1800s generally worked twelve to fifteen hours, six days a week, ( イ) only Sundays off. Their average workweek* was seventy-eight hours. In contrast were the hours of workers who labored in American steel mills in the late 1800s. The length of their shifts was determined by the fact that the blast furnaces* they tended almost always operated twenty-four hours a day. Thus, (oit became customary* for steel mills to have two twelve-hour shifts. However, many of the steel workers labored seven days a week. (a)That gave them a workweek of sighty-four hours. Moreover, sometimes they had to work extra hours on top of this demanding schedule. (オ )the minor differences in the length of workweeks from one industry to another, the average worker put in twelve-to fourteen-hour days at least six days a week, This harsh schedule remained more ( カ) less standard well into the twentieth century. It was not until 1920 that a fifty-hour workweek was introduced in the United States. Anda forty-hour week did not become the rule in most industries until 1938. Low wages was another common complaint of industrial workers. In 1851, the average wage earned by American industrial workers in general was seven to ten dollars per week. That same year New York's Daily Tribune* reported that a worker's family of five required just over ten dollars a week just for basics such as rent, food, and fuel. Most ordinary workers could not afford many simple comforts that middle-class workers enjoyed. (o This miserable situation lasted in America for decades and improved only slowly. As late as 1912, a study found that only 15

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英語 高校生

回答が分からないのでお願いします!

(彼はどうしても私に同意しませんでした。 LE60N 助動詞 (1). (当時私は英語が話せた。) (ドアを閉めてくださいませんか。) (私は彼はここに来るだろうと思った。 (ベンを貸してくださいませんか。) could I could speak English then、 Could you shut the door? 「 thought he would come here. Would you lend me a pen? He wauldnt agree with me. I said I should go. You should stay home now. 2 would 私は行くだろうと言った。) D次 (あなたは今は家にいるほうがよい。) (彼は疲れているはずがない」 (彼女は泳げるようになるだろう」 3 should 4 その他の語句 Can't be 「~のはずがない」 be able to 「~できる」 must not 「~してはいけない」 You must not tell a lie. He can't be tired. She will be able to swim. )内から適当なものを選び, その記号を書きなさい。 A 次の( ① Mary (ア can't イ won't ウ couldn't) see her sister yesterda 2(ア Would ィ Should ウ Must) you give me your bag? ③ Ken is able (ア run イ running ウ to run) very fast. ④ He said he ( ア will イ would ウ shall) do the work. 5(ア Would ィ Should ウ May) you mind opening the door? B 次の各組の文が同じ意味の文になるように,( )の中に適語を入れなさい。 We can rnun fast. are( ) run fast. Don't go out now. You( go out now. I couldn't play the guitar. 11 ) to play the guitar. Do I have to call you before I come tomorrow? )I call you before I come tomorrow? C 次の文を() 内の指示に従って書きかえなさい。 0 He say he will go at once. (say を過去形にして) I think she will become a good scientist. (think を過去形にして) I can't finish the work. (過去の文に)

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数学 高校生

至急😿😿(3)ってなんで4個のしきりじゃなくて5個なんですか!!

重要 例題35 数字の順列(数の大小関係が条件) 次の条件を満たす整数の組(a1, az, as, a4, as) の個数を求めよ。 (2) 0Sa」Sazhassasass3 基本 33,34 (1) 0<ai<a2<as<as<as<9 (3) a+aztastastas<3, a;20(i=1, 2, 3,4, 5) 8の8個の数字から異なる5個 指針>(1) ai, az, ……, as はすべて異なるから,1, 2, を選び,小さい順に a1, az, → 求める個数は組合せ&Cs に一致する。 (2)(1)とは違って, 条件の式に<を含むから,0, 1, 2, 3の 4個の数字から重複を許」 て5個を選び,小さい順に a, a2, 求める個数は重複組合せ Hs に一致する。 (3) おき換えを利用すると,不等式の条件を等式の条件に変更できる。 3-(a+az+as+astas)=bとおくと ataztastastas+b=3 また,aitaz+as+astas<3から よって,基本例題34(1) と同様にして求められる。 ………, as を対応させればよい。 asを対応させればよい。 一等式 620 解答 8の8個の数字から異なる5個を選び, 小さい …, as とすると, 条件を満たす組が1つ決ま 検討 うにして解くこともできる。 (2) 「.348 検討の方法の利 (2), (3) は次のよ 順に a1, a2, る。 7 用] 6:=a:+i(i=1, 2, 3, 4, 5) とすると, 条件は よって,求める組の個数は (2) 0, 1, 2, 3の4個の数字から重複を許して5個を選び, 小 さい順に a1, a2, 決まる。 よって,求める組の個数は (3) 3-(a+az+as+as+as)=b とおくと ataztas+a4+as+b=3, a;20(i=1, 2, 3, 4, 5), b20 よって, 求める組の個数は, ① を満たす0以上の整数の組の 個数に等しい。これは異なる6個のものから3個取る重複組 合せの総数に等しく 別解 a+az+dstastas=k(k=0, 1, 2, 3) を満たす0以 上の整数の組(a,, az, as, as, as)の数は sHeであるから sHo+sH」+H2+sHs=.Co+sCi+C2+,C3 8Cs=&C=56 (個) 0<bくb2くbsくb4<bょく9 と同値になる。よって, ((1)の結果から 56個 (3) 3個の○と5個の仕切り を並べ, 例えば, TO|I○○|| の場合は (0, 1, 0, 2, 0)を表すと 考える。このとき, AIB|C|D|E|F とすると, A, B, C, D, asとすると,条件を満たす組が1つ Hs=4+5-1Cs=&Cs=56 (個) の Eの部分に入る○の数をそ れぞれ a1, a2, as, A4, Us とすれば組が1っ決まるか sC。=56(個) Hs=6+3-1C3=&C3=56 (個) ら =1+5+15+35=56 (個)

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