Group 5-【解密英语】高考核心词汇700讲与练（PPT课件）

Group 5 [81-100] 81. before /bɪ'fɔ:（r）/ prep.& conj.在……以前/前面 ［反］behind, after adv.以前 Group 5 before long 不久以后 long before 很久以前 before it is too late在为时太晚之前，趁还来得及 before sb.could do sth.某人还没来得及做某事就 It is some time + before 从句 一段时间以后才/就…… 例句：We have to check on him before we consider his application. 在考虑他的申请以前我们必须对他本人进行审查。 串记：I had never entered the basement before. Yesterday, my assistant rushed out of it before it was too late. The fire did some damage to it. Before long, it will be repaired. 我以前从未进过地下室。昨天，我的助手及时冲了出来。大火对它造成了一些损害。不久，它就会被修好。 before与ago before adv. 意为“以前”，可以单独使用，位于句末；也可以放在一段时间后，表示以过去为起点的一段时间以前，常与过去完成时连用；此外，before还可用作介词或连词，意为“在……以前”。 ago adv. 意为“以前”，放在一段时间后表示以现在为起点的一段时间以前，与一般过去时连用。 82. beg /beg/ v.乞讨；恳/乞求 Group 5 例句：The applicant begged the manager to give him another chance. 申请人恳求经理再给他一次机会。 串记：A beggar begged a beauty for a dollar. But a policeman banned him from begging in the street. 乞丐向美女讨要一美元。但是警察禁止他在街上乞讨。 beg (sb.) for sth.(向某人)乞求某物 beg (sb.) to do sth.恳求(某人)做某事 I beg your pardon.请再说一遍。 →beggar n. 乞丐 83. begin /bɪ'gɪn/(began，begun) v.开始 ［同］start ［反］end Group 5 例句：At the beginning of junior middle school, I began to admire scientists. 在初中开始时，我开始崇拜科学家。 串记：To begin with, a beginner must have a positive attitude before learning. He has to stick to the approach from beginning to end. 首先，初学者在学习前必须有一个积极 的态度。他必须从头到尾坚持这个方法。 begin doing/to do sth.开始做某事 to begin with 首先，起初 ［同］first(ly), to start with →beginner n. 初学者，创始人 →beginning n. 开始，起点 at the ~ of 在……开头 in the ~ 开始时，起初 ［同］at first from ~ to end从头到尾 84.behave /bɪ'heɪv/ v.守规矩，有礼貌 Group 5 例句：Well educated ones are usually well-behaved. 受过良好教育的人通常表现良好。 串记：In the beginning, the badly-behaved boy didn't adapt to the environment. Later, he behaved himself. His behavior is worth praising. 起初，这个行为不端的男孩不适应环境。后来，他表现得很好。他的行为值得表扬。 behave oneself 守规矩，举止好，乖 →well-/badly-behaved a. 守/不守规矩的 →behaviour(美behavior) n. 行为，举止 →behavio(u)rism n. 行为主义 85. believe /bɪ'li:v/