【Women,toairpollutionbeforegivingbirthtoababy,aremorelikelytogivebirthtochildrenwithheartdefects,researchersreportedonDecember29.()A.exposedB.exposingC.areexposedD.areexposing】
<p>问题:【Women,toairpollutionbeforegivingbirthtoababy,aremorelikelytogivebirthtochildrenwithheartdefects,researchersreportedonDecember29.()A.exposedB.exposingC.areexposedD.areexposing】<p>答案:↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">李秉的回答:<div class="content-b">网友采纳 答案选A.本题考查过去分词;句中已经有了谓语动词are,故空格处需要的是非谓语动词,排除C和D;题干中运用了短语beexposedto暴露,遭遇;英语中很多类似的"be+过去分词+todo/介词/从句"的结构往往表示逻辑主语的状态,只需要去掉be动词,用过去分词短语做状语、定语或补语,故选A;
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