第1个回答 2019-12-08
if/unless的条件句,when等词引导的时间从句中
适用“主将从现”的原则。
本题主干
have
realized表明总时态是现在。
realize的宾语从句中,主句是will
not
(won't)是将来,unless从句中用现在表示将来。
所以只能是D项正确。
本题主要结构
(一级:主句Many
people
have
realized
(二级:宾语从句that
(三级:主句we
won't
have
any
more
clean
water
to
drink
(四级:条件状语从句unless
something
_____
to
fight
against
pollution.))))
第2个回答 2019-12-26
home是副词,不能用on
my
way
to,要省略掉to,故不能选a;
in
the
way
of
关于......方面,与句意不符:我将在回家的路上寄这张卡片。
by
the
way是顺便说一下,顺便问一下的意思。
因此,必须选c.
第3个回答 2020-03-02
Many
people
have
realized
that
we
won't
have
any
more
clean
water
to
drink
unless
something
_____
to
fight
against
pollution.
A.was
done
B.will
be
done
C.to
be
done
D.is
done
答案是D
因为we
won't
have
any
more
clean
water
to
drink
是将来时态,从句unless
用一般现在时is
done表将来。