The best translation for "Brazil s first serious stab at mainstream tourism development" (third paragraph) is

A palavra sublinhada em "and quickly led" (l.3) pode ser traduzida por:

A palavra one em "As one of Brazil's most abundant crops" (l.4) se refere a:

safer em "a safer, cleaner, more comfortable place" (l.7) é o oposto de:

In the text,
"heavily" (L.1) is the opposite of lightly.

the picture and text as reference, judge the following items.
"useless" (L.28) means having no purpose

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"requiring" (L.44) can be correctly replaced by which require without any change in meaning.
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The verb "came about" (L.3) means happened.
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The expression "The tide of public opinion" (L.18) means a tendency of people to think or feel in a particular way.
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"loaded" (L.4) means rich in information.