These viruses, if ________ in, can result in illness or even death.


  1. A.
    breathing
  2. B.
    breathed
  3. C.
    breathe
  4. D.
    to breathe
B
試題分析:考查狀語(yǔ)從句的省略式,英語(yǔ)中如果主從句的主語(yǔ)一致,可以省略從句的主語(yǔ)和be動(dòng)詞,if breathed in=if these viruses are breathed,句意:如果被吸入,這些病毒會(huì)導(dǎo)致疾病或死亡。選B。
考點(diǎn):考查從句的省略式
點(diǎn)評(píng):做這種題目可以用還原法做題,先把主語(yǔ)和be動(dòng)詞加上,再判斷是主動(dòng)還是被動(dòng)。句意通順才行。
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