Question

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問3教えてください😭😭😭🙇‍♀️🙇‍♀️

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The (1)"rare earth elements are a group of 17 metallic elements that are found in the natural
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world. Because these elements are used in all sorts of high-tech devices, they are increasingly
全種類
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in demand. In fact, the use of these metals nearly doubled between the years 2000 and 2010.
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Despite the name, the quantity of these elements is not so low. Some recent reports have
主張した
claimed that the amount of rare earth elements may be on the same level as that of copper* or
Even though the elements exist throughout the world, however, the quantity is not
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sufficient* for mining* profitably* in each location. Moreover, these elements are usually mixed
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with other elements, making it difficult to remove them. This explains why they have been called
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"rare" earth elements.
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Despite an ever-growing demand, few countries are mining for these metals on a large scale.
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One country, China, now handles more than 90% of all mining for rare earth metals. Other
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countries have not entered this business in part because of
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because of (2) the environmental problems th
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can occur. Extracting the metals creates a lot of waste, including radioactive* waste from
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uranium*, thorium* and other elements located in the mining area.
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The growing need for rare earth metals may convince some countries to expand their mining.
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Running out of rare earth metals is not the concern, however. Rather, the question is whether
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they can be obtained without too high of an economic or environmental cost.
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注 rare carth elementレアアース、 希土類元素 metallic: 金属の high-tech: 先端技術の
mine: (金属を) 掘り出す、 採掘する
sufficient 十分な
lead:
extract: ~を抽出する
radioactive: 放射性の
copper:
profitably: 収益性を保って
uranium: ウラニウム
thorium: トリウム
1. 下線部 (1)について、 なぜ "rare” と呼ばれるのか、理由として最も適切なものを選びなさ
Because they do not exist in nature.
Because they consist of only 17 elements.
Because they can be found only in a particular area.
Because they are difficult to mine economically.
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2.下線部(2) の具体的な内容を、以下の書き出しに続けて、20字以内の日本語で答えなさい。
レアアースを抽出するときに放射性を含む廃棄物が発生する
こと。
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問 3.第4段落の内容を以下のようにまとめる場合、(A) (B)に入るものをそれぞれ選びなさ
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The question of rare earth elements is not (A) but (B).
(A)Dthat their demands are increasing quickly
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that only China is mining for them
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3that we might use them up
(B)Dthat mining them is not profitable and that it may cause damage to the environment
that we cannot extract them without causing damage to the environment
3that countries other than China do not have the skill to extract them economically
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4. 本文の内容に一致するものをすべて選びなさい。
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The number of high-tech devices using rare earth elements has nearly doubled between 2000
and 2010.
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Rare earth elements are as easy to remove from the ground as copper or lead.
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The actual quantity of rare earth elements throughout the world is not the main problem.
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Nearly all the rare earth elements exist in the ground of just one country.
5Rare earth metals are mixed with other elements so that they can be used in high-tech devices
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China is the only country that is mining for rare earth metals on a large scale.

Answer 1

✨ ベストアンサー ✨

taka

(A) ③　　
① それらの需要が急速に増えているということ
② 中国だけがそれらを採掘しているということ
(B) ①　
② 私達はそれらを抽出すれば必ず環境に被害を与えるということ
③ 中国以外の国は、それらを経済的に抽出する技術を持っていないということ
The question of rare earth elements is not that we might use them up but the mining them is not profitable and that it may cause damage to the environment.
レアアースの問題は、私たちが使い切ってしまうかも知れないということではなく、採掘しても利益が得られず、環境にダメージを与えるかも知れないということです。

【第4段落の内容】
レアアース金属の必要性が高まっていることから、採掘を拡大する国が出てくるかも知れません。 しかしながら、レアアース金属が不足することが心配されるわけではありません。それよりもむしろ問題は、経済的、あるいは環境的な負担をあまりかけずに、それらを入手できるかどうかです。

参考にしてください。