One third of this area is covered with forest啥意思?

one third of one-third of z One-third of the students in this class are girls.这句中的主语为什么是One-third? 一道英语选择题：One third of this bread ____ bad.One third of this bread ____ bad.A.is B.are C.am D.be －－of the population of this country are famers. A.First three B.One third One third of this area is covered with forest啥意思? That means that we have kind of left this categorization and moved to the third one. That means that we have kind of left this categorization and moved to the third one. one third of population和one third of country的谓语为什么不同?为什么one third of population用ARE,而one third of country用IS ? one third one third one third 英语句子：是one third them还是one third of them?这两个有什么区别? One-third of the students in this class are girls.求句子成分分析,one-third of the students这一短语求详细分析。其它的我分析得出来……有一种说法one-third是主语，那么of the students是神马成分呢？ The number of the workers in this factory______about five hundred.One third of them ______woman teachers.A,are are Bis are C is is D are is我想问一下分数one third和单复数之间的关系,ONE THIRD走什么数是复数还是单数,还有是 one third of student are还是is girls? 英文短语one-third of的用法one-third of ＋名词 后be动词的单复怎麽用? 英语分数作主语谓语单复问题one-third of the students in this class are girls这句子主语是谁,谓语变化有啥规律