-You’re dropped __________ “s” in the word “across”.
-Oh, you are right, __________ letter “s” should be doubled like this “cross”.


  1. A.
    a, a
  2. B.
    an, a
  3. C.
    an, the
  4. D.
    the, a
C
試題分析:句意:在單詞”across”當(dāng)中,你丟了一個(gè)”s”.——哦,你說(shuō)的對(duì)。想這個(gè)“cross”一樣,這個(gè)字母“s”應(yīng)該雙寫(xiě)。結(jié)合語(yǔ)境可知上文泛指任何一個(gè)字母“s”故用不定冠詞,s詞首音素是元音,故不定冠詞用an。下文特指某個(gè)字母,故用定冠詞,選C。
考點(diǎn):冠詞
點(diǎn)評(píng):冠詞是一種虛詞,一般用于名詞前面表示特指或者泛指某一個(gè)。冠詞的應(yīng)用都用一定規(guī)則,熟記這些規(guī)則是解題的關(guān)鍵。不定冠詞用在名詞前,表示泛指任何一個(gè)。定冠詞用在名詞前表示特指某一個(gè)。在專有名詞及表示泛指的復(fù)數(shù)名詞前一般不要冠詞,叫做零冠詞。需注意的是不定冠詞的用法是看詞首音素,不是看首字母,如:useful首字母是元音,但是詞首音素時(shí)輔音,故不定冠詞用a;hour首字母是輔音,但是詞首音素是元音,故用冠詞an。
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