1.Most of the dollar differences stem from fact that women _____1_____ tend to be more frequently employed and have more years on the job.
2.Education has acquired a kind of snob value in modern time. ____2_____We are no longer content to be honest craftamen, skilled at our work through year of patient practice. ______3_____
3.Aristotle felt that this is self-evident pricinple that everything _____4_____in the universe has their proper place. ____5___
4.It is probably not a coincidence that most flocks begin their migratory flights at the night _____6____
5.The history of British anti-slavery can be devided into a number of phaes. The first of this stretched from 1787 to 1807 and was ____7____ directed against the slave trade.
6.With collections expanding, with the needs and funtions of museums changing, empty space has become very precious ____8____ commodity.
7.You may have noticed how people who live or work closely together come to behave in a similar way. Unconsciously we copy these we are close to or love or admire. ____9___
8. If indeed silence is golden, it is also becoming as rare as gold. It seems that the progresses of man includes a rising ___10___
volume of noise.
9. Noise pollution is the new side effect of our technological age. Day or night, the sound of the work fills the air. ____11___
答案与解析：
1. fact前加the
1. fact前加the
2. time ; times
固定用法in modern times“在现代”，times是“时代、时期’”的意思。
3. year ; years
4.this ; it
这句是形式主语，只能用it。
5. their ; its
6. the ; / 或at ; during
7. this ; these
此处的代词指代前面的phases，所以改成these。
8. very前加a
Commodity是可数名词单数，故在前面要加不定冠词a。
9. these ; those
这里的those相当于those (who) we are close to or love or admire.
10. progresses ; progress
progress是不可数名词。
11. the work ; work
work此处是泛指。