________ to sunlight for too much time will do harm to one's skin.
A.ExposedB.Having exposed
C.Being exposedD.After being exposed
C

試題分析:從句子成分分析,全句中有will do作為謂語動詞,故expose應(yīng)作為非謂語動詞作主語的形式,并且根據(jù)句意應(yīng)表被動,排除B。而D中有after可作連詞,從句必須主語謂語,故排除。又因過去分詞不能單獨構(gòu)成主語成分,需用being done的形式,故選C。句意:暴露在陽光下太長時間會對一個人的皮膚有危害。
點評:本題重在理解非謂語動詞的用法,非謂語動詞是高考語法點的重中之重。把握好以下的知識:to do 表目的、將來;doing 表主動、伴隨;done表被動、完成。同時答題步驟為:1.判斷是否為非謂語動詞,看是否有連詞。2.找邏輯主語。3.判斷邏輯主語與非謂語動詞的關(guān)系。4.看是否非謂語動詞動作發(fā)生在主句謂語動作之前,如果是之前,就用完成式的形式。
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