摘要:考试点二their等物主代词1．物主代词是普遍的名词限定词,之后既可接可数名词的单复数(hispen,hispens)又可配不可数名词(histime),但不能与别的的限定词另外出現(一部分数词以外)，比如：不能说nomycar,mynocar，可是可以说Mytworedcars2．英语中很多习惯用…
考试点二 their等物主代词
1．物主代词是普遍的名词限定词, 之后既可接可数名词的单复数(his pen, his pens)又可配不可数名词(his time), 但不能与别的的限定词另外出現(一部分数词以外)， 比如：不能说no my car, my no car，可是可以说 My two red cars
2．英语中很多习惯用法在表明特指时都用物主代词而不用the, 为了更突显隶属关联，这在TOEFL中是一个常出的点
比如：Manufacutrers of consumer goods often change the styles of their products.
这儿用their 而不用 the
练习题:
(1)
A good exercise program helps teach people to avoid the habits that might shorten the lives.
应改为: their
解释: 定冠词the代指不清, 用物主代词their作名词lives的限定语更符合英语习惯性, 还可突显lives 与people中间的隶属关联
(2)
A liquid is similar to a gas because has molecules are not fixed to each other in any specific way.
应改为: its
解释: has是形容词, 不可以装饰名词, 且与从句的宾语矛盾, 依句意改为物主代词its作molecules的限定语
考试点三 只接复数名词的限定词
a (large /small /great /considerable /remarkable) number of, a variety of, a set of, a few, 等表明数的固定不动短语以后一直接复数名词
练习题:
(1)
In mathematical terms, modern algebra is set of objects with rules for connecting or relating those objects.
应改为: is a set
解释: a set of是固定不动短语, 表明一套、一组, 后边接可数名词的复数, 与题中objects符合
(2)
At birth, an infant exhibits a remarkable number of motor response.
应改为: responses
解释: 语句a number of 后边规定接可数名词的复数, number前能加一些修饰词如great, considerable, remarkable, small 等表明a lot of 或 a few
留意 “the number of” 和 “a number of”的差别
The number of boys in Class Five is 25. (五班男孩儿的数量是25，后边谓语动词用奇数)
A small number of families are able to afford an apartment. (极少数家中可以买起一套住宅, )
雅思考试托福备考toefl共享托福机经
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