In such a fierce competition, a person has to make every effort if he_______.
A.has succeededB.would succeedC.will succeed D.is to succeed
D

試題分析:考查be to do用法.be to do sth表示一定要做某事;必須坐某事;if引導(dǎo)條件狀語從句,句子里使用一般現(xiàn)在時(shí)代替將來時(shí)。句意:在如此激烈的競爭中,如果一個(gè)人要成功,他不得不非常努力。故D正確。
點(diǎn)評(píng):be to do sth是高中一個(gè)非常重要的結(jié)構(gòu),可以表示將來時(shí),也可以表示一定要做某事;必定要做某事;在具體使用中要加以辨析。
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