考点解析：
例1：Operating within Seattle, which has 20 percents racial S2__________
minorities, the paper has put into place policies.
解析：在表达“百分之几”时，只需用基数词加上单数percent即可。
例2：In addition, the paper instituted a content
audit (审查) that evaluates the frequency and manner of
representation of woman and people of color in photographs S7._________
解析：不定冠词a(n)或定冠词the加上单数个体名词可以指一类事物，若不用冠词，则名词须为复数。此处woman与people并列作为of 的宾语，由于people是集体名词，单数形式表复数意义，从平衡角度出发，应该将woman改为women。
例3：Words came that the missing boy had been found. 1.__________
解析:word为当可数名词时，意思为“(某人所说的)话”，当其为不可数名词时，意思为“消息”。根据句意，本题中word应改为“消息”的意思，所以应该把Words改为Word。
例4：They spent over a million year evolving as co-operative hunters. S5.__________
解析：year是可数名词，而且前面又有a million 修饰，所以要用复数。
巩固与拓展
1.There are majorities of teachers who have a lot of teaching experiences in my school.
__________
2. In some schools there are special woman teachers teaching girl students. __________
3. According to psychologists, there are three factors accounting for this phenomena. __________
4. There is so much voice outside that I can’t concentrate on my study and thinking. _________
5.Culture is composed of nonmaterial culture abstract creations like values, beliefs,
customs and institutional arrangements - and material culture - physical object like ________
cooking pots, computers and bathtubs.
