Question

あう

2段落目の15行目の「linked」がbecauseに変わる分詞構文なのですが、becauseの後の文の書き換えが分かりません。本文の意味は他の大陸は自然の橋によって繋がれていたのでと言う意味です。どなたか教えていただけると嬉しいです🙇🏻‍♂️

aji bns
[1] Australia's plants and animals are probably the
closest things to alien life-forms that you are ever
likely to encounter on Earth. The first naturalists
to investigate them were astonished by what they
some 5
found. The swans there were black and
mammals were found to lay eggs. It really was
an upside-down world, where many of the larger
animals hopped, where each year the trees shed
their bark rather than their leaves, and where the
clock
“pears” were made of wood.
10
2 Australia has been separated from other continents
for at least 45 million years. On this point, Australia
is clearly different from the other continents, which
have been able to exchange various species at different
times linked by natural bridges of land. Its plants and 15
animals have taken their own separate and unique
evolutionary journey. This is the very reason why
Australia has one of the world's most unusual natural
environments.

Answer 1

✨ 最佳解答 ✨

ののののの

まずこの文は　,whichで繋がれていますよね。

これは元々は

①Australia is clearly different from the other continents.

②The other continents have been able to exchange various species at different times linked by natural bridges of land.

という2文を関係代名詞でつなげたものです。

それで、質問者さんの言うには、
linked by natural bridges of landが
becauseのまとまりに書き換えられるということでしたね。
要はlinked by〜は分詞構文だってことですね。

分詞構文に、意味上の主語（誰がlinkedなのか）が書かれてない場合は、
この意味上の主語は、主節の主語と一致します。

主節の主語　とは②の文全体の主語のことです。
つまり、
誰がlinked なのかというと、The other continents だということです。

この文では主節が現在完了形で、becauseの中身もそれに合わせた方が、今回の文では良いので
because the other continents have been linked by natural bridges of land
と書き換えれば良いです。

あう

とても分かりやすく説明していただき、ありがとうございます🙇🏻‍♂️理解ができました!