Unit 1 Looking forwards Using language—高二英语外研版(2019)选择性必修第四册课前导学 重点单词 ambition _____ correspondent _____ historical _____ detective _____ ultimately _____ guarantee _____ illustrate _____ energetic _____ unfold _____ extraordinary _____ academic _____ fictional _____ originally _____ immense _____ renowned _____ 重点短语 be indifferent to _____ in need of _____ take up _____ strive for _____ be about to do sth. _____ fall into a deep slee _____ 面对…… _____ 采取行动 _____ 发生在某人身上 _____ 准备就绪/妥当 _____ 致力/献身于 _____ 专注于 _____ 重难知识点 现在完成时 结构: 主动:have/ has done 被动:have/ has been done 现在完成时的标志:for+时间,since,during/in/over the last(past) few years (months, weeks...), in recent years, so far, up to now, by now等。 We used to see each other regularly, but I haven’t heard from him since last year. 我们过去经常见面,但从去年起我就没收到过他的信了。 下列句型中常用现在完成时 ①It has been+一段时间+since从句; ②This (That/It) is the first (second...) time that...+现在完成时; This is the first time that Jack has won first prize in the competition. 这是杰克第一次在比赛中获得一等奖。 This is the most interesting film that I have ever seen. 这是我看过的最有趣的电影。 在时间或条件状语从句中,现在完成时可代替将来完成时。 as soon as…一……就…… I shall ( will ) post the letter as soon as I have written it. 我一写完信就把它寄出去。 现在进行时 意义和用法: ①表示说话时正在发生着的一个动作; ②表示现阶段但不一定是讲话时正在进行的动作; ③表示近期特定的安排或计划; ④与always,often等频度副词连用,表示经常反复的行为或某种感彩。 He is working on a paper. 他正在写一篇论文。 She is teaching English and learning Chinese. 她在教英语,同时也在学汉语。 I am meeting Mr. Wang tonight. 我今晚要和王先生见面。 The girl is always talking loud in public. 这个女孩总是在公共场合大声说话。 一般将来时 表示将来的动作或状态,常用“will/shall+动词原形”,与表示将来的时间状语连用,如tomorrow,next week等。 We will have a meeting tomorrow. 我们明天开会。 be to do表示按计划、安排即将发生的动作,还可表示吩咐、命令、禁止、可能性等。 A meeting is to be held at 3:00 this afternoon.今天下午 3 点将召开一个会议。 You're to be back before five o'clock.你要在 5 点之前回来。 be about to do表示“即将,正要” Autumn harvest is about to start.秋收即将开始。 一般过去时 基本用法:表示过去的事情、动作或状态,常与表示过去具体时间状语连用(或有上下文语境暗示) We met her in the street yesterday. 我们昨天在街上遇到了她。 When he was young, he took cold baths regularly.他年轻时经常洗冷水澡。 表示两个紧接着发生的动作,由以下词语连接,常用一般过去时,如as soon as, immediately, the moment, the minute等。 The moment she came in, she told me what had happened to her. 她一进来,就告诉我她发生了什么事。 一般现在时 表示客观事实或普遍真理(不受时间限制)时用一般现在时。 表示现状、性质、状态时多用系动词或状态动词的一般现在时;表示经常或习惯性的动作,多用动作动词的一般现在时,且常与表频率的时间状语连用。 Ice feels cold. 冰摸起来很凉。 They al ... ...
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