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必修 4 * 1. He and a colleague were to spend two years there teaching English at a teacher training college. 他和一位同事要在一所教师培训学院教两年英语。 2. Nearly 100 million people live here, most of them in the east. 差不多一亿人口住在此地,绝大多数在东部。 重点句型 * 1. He and a colleague were to spend two years there teaching English at a teacher training college. 他和一位同事要在一所教师培训学院教两年英语。 be to do 常表示以下意义： ① 表示按计划或安排要做某事； ② 表示“应该”,相当于should, ought to； ③ 表示“命令,要求”； ④ 表示“想,打算”； ⑤ 表示“注定,不可避免”做某事。 ⑥ 在否定句中表“禁止”。 句型探究 * The plane is to take off at 2:30. 这架飞机将在2：30 起飞。 The books you borrowed are to be returned before May 7. 你借的图书应在5月7日前归还。 The letter is to be typed as soon as possible. 这封信必须尽快打印出来。 If you are to be there on time, you must go now. 如果你打算按时赶到那儿,你必须现在就走。 句型探究 * You are to be regretful for what you have done. 你会对你所做的事后悔的。 You are not to make any noise in the reading room. 在阅览室里,你们不得大声喧哗。 句型探究 * be to do sth., be about to do sth. 都表示将要发生的动作。 ①be to do sth. 表示的动作可能“即将”发生,也可能在将来发生,常与表示将来的时间状语连用。 ②be about to do sth. 只表示“马上,就要”发生的动作或事情,不与表示将来的时间状语连用。 He is to come here tomorrow. 他明天将要来。 We were about to leave when it began to rain. 我们正要动身,这时天下起了雨。 词语辨析 * 2. Nearly 100 million people live here, most of them in the east. | 
