高一英语知识点总结及重难点解析：Unit5-6词语比较(2)

　　词语比较(2)

　　4. be afraid, be afraid to do sth., be afraid of (doing) sth.

　　(1) be afraid 意为“担心，害怕”，多用于口语，常用来表示一种歉意，或遗憾，后可接 so 或 not，也可接 that 从句。I'm afraid (that) 其语意相当于 I'm sorry, but...。

　　- Are we on time? 我们准时吗? - I'm afraid not. 恐怕不准时。I'm afraid you'll get caught in the rain.

　　(2) be afraid to do sth 常表示“由于胆小而不敢做某事”。She is afraid to be here alone. / He is afraid to jump into the river from the bridge.

　　(3) be afraid of (doing) sth. 常表示“担心或害怕某事(发生)”。I was afraid of hurting her feelings.

　　5. live, living, alive, lively

　　(1) live adj.

　　① 活的;活生生的;(只修饰生物;只作前置定语) The laboratory is doing experiments with several live monkeys.

　　② 实况直播的 (不是录音)It wasn't a recorded show. It was live.

　　③ 带电的;燃着的;可的 This is a live wire.

　　(2) living adj. 活着的，有生命的(作表语或定语) She was, he thought, the best living novelist in England. / The old man is still living. (或alive)

　　(3) alive adj. ① 活着的;② 有活力的;有生气

　　作后置定语：Who's the greatest man alive?

　　作表语：Was the snake alive or dead? / My grandmother is more alive than a lot of young people.

　　作补语：Let's keep the fish alive.

　　(4) lively adj. 活泼的;有生气的;活跃的(作表语或定语) The music is bright and lively.