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英語 高校生

答えがなく困っています。 どうかよろしくお願いします。

Ⅰ 次の英単語で最も強く発音する部分(第一アクセント)を、 それぞれ記号で答えなさい。 d 2. a-bil-i-ty 3. access 4. va-ri-e-ty 5. in-tro-duce del-i-cate アイウ アイウェ アイ アイウェ アイウ Ⅱ 次の英文を読み、 設問に答えなさい。 How many hours a day do you spend on your *cell phone? Today, more and more young people are spending more and more time on smartphones and computers. According () a 2013 *survey carried out by the *Japanese Cabinet Office, 97.2% of high school students owned a cell phone; of these, 82.8% had a smartphone. This is a *drastic increase from 2010, when only 3.9% of those with cell phones had smartphones. The survey also shows that the spread of smartphones has led to increased access to the Internet among children, whose average access time on a weekday is 107 minutes. The Cabinet Office also found that 40% of Japanese children *log on to the Internet more than two hours a day, and that 8% spend more than five hours a day online. This has led to some serious social and *psychological problems. Heavy Internet users become *obsessed with staying online and develop an *addiction to games, social media sites, and free communication systems such as LINE. The various *adverse effects of such addictions have been reported in most developed countries. Many young addicts suffer (2) headaches and sleep disturbances such as *insomnia. They fail to maintain normal weight *due to eating irregularities. And many are more likely to experience emotional distress, isolation, anxiety, and depression. A British study suggests a clear link between excessive Internet use (3) lower self-esteem. Those young people who spend more than A four hours a day looking at a screen are particularly *vulnerable to mental *disorders. -No H Several related studies conducted in China make clear the effects of Internet use on brain structure. One study has shown that *volume @losses were seen in the *gray matter areas of Internet addicts' brains. These areas are involved in people's ability to develop *empathy and compassion for others. Another Chinese study used MRI scans to look at the brains of Internet-addicted teenagers and found significant damage in the *white-matter nerve fibers connecting the brain areas governing emotions, decision-making, and self-control. Similar (4) can be seen in the brains of heavy alcohol and drug users. () cell phone: ## survey: drastic: 極端な log on: アクセスする obsessed with ~ : ~に夢中になる addiction due to~: ~のため volume: white matter: insomnia: TRE disorder: , empathy: # 1. ( ) ①~④に入れるのに最も適した語をそれぞれ一つずつ選び、その記号で答えなさい。 (with into A to = at) 2 ( from = above) □in Japanese Cabinet Office: A psychological: 心理的な . # adverse effects: vulnerable to~: ~になりやすい gray matter: K ハon

未解決 回答数: 1
英語 高校生

(A)の問題の(1)~(6)までの答えと訂正した回答を教えてほしいです。よろしくお願いします。

【4】 次の設問 (A), (B) に答えよ。 (配点 30> (A) 次の(1)~(6) の各英文には、下線部ア~エのいずれか1つに文法・語法に関して不 適切な あるいは文意を通らなくする箇所が含まれている。 その下線部の記号を記せ。 ア (1) It is estimated that the surface temperature of our planet has been risen by about half a degree Celsius, compared to a hundred years ago, and some scientists believe it's going to get warmer yet in the years to come. (2) In English-speaking cultures, children are often told to say "please" when asking for something. By so doing, they are more likely to be given イ permission than they do not. If they don't, their parents give them a hint, by asking them " What's the magic word?" Trying to forecast weather is incredibly complicated. Some scientists P believe that no matter how advanced science is, weather is impossible to イ predict it accurately, because there are too many random elements involved. (3) Inuits are a related group found in Alaska, and also in Canada and Greenland. They are thought to have spread into North America from Siberia many thousands years ago. In both the US and Britain these people are ウ often called Eskimos but the name Inuit is now preferred and is becoming more widely used. 5) The Cold War is a term for the political conflict between the capitalis countries of the West and the Communist countries of the East that begar 7 after World War II. Both sides had large military forces which were kep イ ready for war, and threatened at each other with nuclear weapons. I

回答募集中 回答数: 0
数学 高校生

この問題での[1]の必要性が分かりません *の部分で左側極限と右側極限が一致したと書いていますがxとx²の位置が入れ替わっていて明らかに同じ式では無いのに何故同じように扱っているのでしょうか

重要 例題 173 平均値の定理を利 x-0 ●基本 171,172 指針 f(x) = COS x と考えたとき, 分子は 差 f(x) f(x2)の形になっている。 よって、 ジの基本例題 172同様, 差f (b) f(a) には平均値の定理の利用 の方針で進める。 それには,平均値の定理により、 x-x を満たす 01 が存在する。 limx=0, limx2 = 0 であるから x-0 x→+0 平均値の定理を利用して, 極限値 lim- x→0 解答 f(x)=cosx とすると, f(x)はすべての実数x について微分可 能であり AFTOSS (D)) f'(x)=-sinx よって [1] x<0のとき x<x2 であるから,区間[x, x2] において,平均値の定理を 用いると [+xgol=(x)\\ cosx2-COSx=-sin0,x<br<x2 す。 以上から an に表して極限値を求める。 なお, 平均値の定理を適用する区間はx→−0とx→+00 ときで異なるから注意が必要である。 lim x-0 COSxCOS2 x-x2 を満たす 02 が存在する。 limx2=0, limx=0であるから x→+0 COS x 2-COSx よって =lim(-sin01)=-sin0=0 x2-x [2] x>0のとき, x→+0 であるから, 0<x<1としてよい。 このとき, x2<xであるから,区間[x2,x] において, 平均 値の定理を用いると lim x→+0 = COS x -COS x 2 x-x2 lim x0 x-0 .2 COS x - COS x x-x² COS x -COS x2 x-x2 limO1=0 x-0 =-sinOz, x2<02<x を求めよ。 NET COS x - COS x 2 x-x2 lim02=0 x→+0 =0(*) =lim (-sin02)=-sin0=0 x→+0 IS Dgoln Czapoln 171 練習平均値の定理を利用して,次の極限値を求めよ。 4 1 173 ex-1 (1) limlog を微分係数の形Ufc 1 平均値の定理が適用でき 条件を述べている。 <x<0<x2 f(b) f(a) b-a a<c<b はさみうちの原理。 -=f'(c) x→+0であるから、 x=0の近くで考える。 f(b) f(a) b-a=f'(c) a<c<b はさみうちの原理。 1 理 か (*) 左側極限と右側極限が 0で一致したから、 極限値 は0 となる。

未解決 回答数: 1