________ 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(yǔ)動(dòng)詞,故expose應(yīng)作為非謂語(yǔ)動(dòng)詞作主語(yǔ)的形式,并且根據(jù)句意應(yīng)表被動(dòng),排除B。而D中有after可作連詞,從句必須主語(yǔ)謂語(yǔ),故排除。又因過(guò)去分詞不能單獨(dú)構(gòu)成主語(yǔ)成分,需用being done的形式,故選C。句意:暴露在陽(yáng)光下太長(zhǎng)時(shí)間會(huì)對(duì)一個(gè)人的皮膚有危害。
點(diǎn)評(píng):本題重在理解非謂語(yǔ)動(dòng)詞的用法,非謂語(yǔ)動(dòng)詞是高考語(yǔ)法點(diǎn)的重中之重。把握好以下的知識(shí):to do 表目的、將來(lái);doing 表主動(dòng)、伴隨;done表被動(dòng)、完成。同時(shí)答題步驟為:1.判斷是否為非謂語(yǔ)動(dòng)詞,看是否有連詞。2.找邏輯主語(yǔ)。3.判斷邏輯主語(yǔ)與非謂語(yǔ)動(dòng)詞的關(guān)系。4.看是否非謂語(yǔ)動(dòng)詞動(dòng)作發(fā)生在主句謂語(yǔ)動(dòng)作之前,如果是之前,就用完成式的形式。
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