Question

The world’s elderly population will exceed(超過) ____ of children by 2060, when each group ____ to account for about one fifth of the population.

A．that ; is expected	B．it; will expect
C．that; expects	D．one ; will be expected

Answer 1

A

試題分析：句意：到2060年為止是，世界老年人口的數(shù)量將超過孩子們?nèi)丝诘臄?shù)量，到那時(shí)，分別占到了整個(gè)人口的五分之一。that指代the population, be expected to 有望…,不定式形式表將來。
點(diǎn)評：that和it主要的區(qū)別在于It 常用來代替前文中所提到的同一個(gè)東西，屬于同名同物，而that屬于同名異物。The umbrella you bought is cheaper than that I bought. （替代詞that在該句中特指“the umbrella I bought”, 以區(qū)別“the umbrella you bought”）；而one 表泛指。