2016公共英語等級考試二級語法詞匯辨析：介詞

　　容易混淆的介詞：

　　表時間的介詞 at, on, in at表示“在幾點幾分”(單位最小);on表示“在具體的某一天或某天上午(下午晚上等)”;

　　in表示“在幾天、周、月、年”。 I get up at six o’clock.

　　It happened on a spring morning.

　　There are seven days in a week.

　　in the morning / evening / afternoon;at noon / night / dawn / sunrise / sunset / lunch / dinner / supper, etc.

　　during, for, in for后加一個“表時間段的具體單位(常用復(fù)數(shù))”;during強調(diào)“持續(xù)”或“某活動”期間;in指在一段時間內(nèi)。 She has lived here for six years.

　　He was in English during the war.

　　In those days he was poor.

　　till, until till/until構(gòu)成的短語修飾“持續(xù)性動詞”，“非持續(xù)性動詞”要用“否定式”。 They waited till/until 10:00.

　　They didn’t leave until/till 10:00.

　　after, since “after+時刻或時段”，“…以后”，終點時間在過去或?qū)��?而“since+時間點”，“自從…以來”，終點在說話的時刻。 She’ll be back after eight o’clock.

　　She’s lived here since 2002.

　　in, after “in+時段”，“…以后”，用于將來時;“after+時刻或時段”，“…以后”可用于將來時或過去時。 He’ll leave after 11:00.

　　He left after 11:00.

　　She left after a few hours.

　　She’ll be back in half an hour.