The world’s elderly population will exceed(超過(guò)) ____ of children by 2060,when each group ____ to account for about one fifth of the population.
A．that; expectsB．those ; will expect
C．that ; is expectedD．one ; will be expected
C

試題分析：考查代詞和時(shí)態(tài)語(yǔ)態(tài)：第一空填that指代population，第二空填is expected因?yàn)閑ach group和expect是被動(dòng)關(guān)系，句意：世界老年人口到2060年將超過(guò)兒童的人口，那時(shí)每個(gè)群體將占據(jù)人口的5分之一。選C。
點(diǎn)評(píng)：代詞辨析要弄清指代的是什么：It指代上文出現(xiàn)的同一事物；that指代可數(shù)名詞單數(shù)或者不可數(shù)名詞，后面一定要有定語(yǔ)修飾；one表示泛指，指代可數(shù)名詞單數(shù)。
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