第二部分 专题四
考点一
Ⅰ.单项填空
(C )1.This is Mr White's ________ visit to Beijing . He has been there twice before.
A．two B．second
C．third D．three
(A )2.The old man began to learn English at the age of________.
A．sixty B．sixties
C．s ixtyyearold D．sixty years old
【精析】考查基数词的用法。at the age of＋基数词，表示“在……岁时”。
(C )3.Today is my mother's________ birthday. I will buy her a gift.
A．fourteen B．fourteenth
C．fortieth D．four
【精析】考查序数词的用法。表示序列时用序数词，序数词前用定冠词the，若序数词前面有形容词性物主代词或名 词所有格修饰时，不再用任何冠词，并由句 意可知“今天是我妈妈的四十岁生日”应用fortieth，故选C。
