(B)
There is no doubt that language teaching will be made easier to some extent by
an intelligently designed curriculum) making use of textbooks that introduce new
vocabulary and sentence structures at a reasonable rate and with adequate
repetition.
At the same time, it is quite possible that a carefully designed
5 curriculum, no matter how excellent, may actually slow down learning if the teacher
(2)
makes students follow it too closely. Language learners benefit from exploring a
language on their own, but they will have little opportunity for this if their teachers
make all learning decisions for them.