Читать что-то на новом языке лучше, чем заучивать правила, которые приобретутся сами при длительном чтении. Но книги эти глуповаты. Есть же более глубокого содержания книги на всякие темы, что облегчает запоминание. Например, следующая :
http://www.archive.org/details/cu31924031321890
Вот оттуда несколько слов:
FIEST LESSONS IN SCIENCE.
1. The stape or form of the Earth on which, we live is
that of a great round ball, which we call a globe or sphere.
It does not seem to us at first to be so ; just as an ant, that
creeps on the face of a ball, would not see that it is round,
since it sees such a small part of it. Now we are like
ants, when we stand on the great globe of the Earth ; and
we can see but a small bit of its face at one time. And
so, if a man stood in the midst of a large plain, he might
think that the whole earth was flat, for it would seem so
to him, and he might say in his heart, " If I were to go on
and on for a long, long time, I might come to the end of the
earth at last, and what shall I do then ? " Or, if he was
one of a land where there are high hills and deep vales, he
might say, " It is not true that the earth is a globe, round on
all sides, as you tell me ; for how can this be, when here in
one place we go up to the top of some high hUl, and there
we go down, low down, to the bank of a stream ? " How
can it be that the Earth is a round globe, when there are
such hills and vales as these on its face, here and there,
on all sides of us ?