First, while language provides a means of saying and doing things,
teaching is generally being divorced from the use we make of language. 【A1】________
We teach an unapplied system, rather than teach students directly to do 【A2】________
things that they need to do through languages. Second, language is a
social tool used by thinking social individuals. Hence we teach students 【A3】________
to do and say things with language which is fundamentally insignificant 【A4】________
to them as persons, and consequently they say these things formally and
impersonally. A third great source of efficiency is due to an effort to 【A5】________
teach all the students in a group at the same rate. We acknowledge that
this is unfair to the capable student, but we probably do not realize the
unfairness to the slow student, who is often taking as being 【A6】________
unintelligent. There is no evidence that slow students are necessary 【A7】________
unintelligent, or unintelligent students are incapable of learning a 【A8】________
language. With proper designed courses, students, learning to do what 【A9】________
they need to the language, can rise to unprecedented levels of 【A10】________
competence.
去掉being
（根据句意，教学通常与我们对语言的使用分离。这里就是一个事实的表达，一般的被动时态即可，不需要 进行时的被动。所以去掉being。）
teach→teaching
（than是介词，后面应该加动词的ing形式。所以把teach改为teaching。）
thinking∧social→of
（根据句意，语言是用来关心社会个体的工具。think后面缺少介词，think of为固定短语，意为“关心”。所 以在social前面加of。）
insignificant→significant
（根据句意，语言对人来说是极其重要的。insignificant与原句意思相反。所以把insignificant改为 significant。）
efficiency→inefficiency
（根据句意，第三个效率不高的原因是以同样的速度教一个组中所有的学生。这对学的快的和学的慢的学生 都不公平。efficiency与原句意思相反。所以把efficiency改为inefficiency。）
taking→taken
（根据句意，学的慢的学生常被认为是愚蠢的。take…as…为固定短语，意为“把……看作是……；把……当 作是……”，它的被动是…is taken as…。所以把taking改为taken。）
necessary→necessarily
（副词necessarily修饰形容词unintelligent。所以把necessary改为necessarily。）
or→and
（根据句意，没有证据证明学的慢的学生一定是愚蠢的，也没有证据证明不聪明的学生就学不会一种语言。 前后两句是以“There is no evidence”并列的，因此用and，而不是or。所以把or改为and。）
proper→properly
（根据句意，合理地设计的课程，应该用副词properly修饰动作design。所以把proper改为properly。）
to∧the→with
（根据句意，学生可以用合理设计的课程，用语言去学着做需要去做的事情，就可以达到前所未有的语言能 力的高度。the language前面从语义上和语法上都缺少成分，而介词with有“用……”的意思。所以在the前面 加上with。）