Thereis(Thereare)ahighproportionofgirlsintheirclass.用那个对?ahighproportionofgirls算是单数还是算复数,关系到用is还是用are.StevensaidboysmaydoworseinEnglishwhenthereisahighproportionofgirlsintheirc

Question

There is (There are) a high proportion of girls in their class.用那个对?
a high proportion of girls 算是单数还是算复数,关系到用is还是用are.Steven said boys may do worse in English when there is a high proportion of girls in their class because they realize that the girls are better than them.此句出自浦东新区2012年中考预测英语试卷,或许用there are 才是最好的,但讲不清,

Answer 1

a high proportion of 后边如果是复数名词,就用are,或be 的其它时态；
如果后边是不可数名词,如a high proportion of desert（water,etc.),就用is或be 的其它时态.