課文詳注 Further notes on the text
    1．Tell Mary we'll be late for dinner this evening. 你告訴瑪麗，今晚吃飯我們將晚到一會兒。
    句中 we will be late…是一個賓語從句，作動詞 tell的賓語。
    這個賓語從句省略了引導(dǎo)詞that。late表示“遲到”的意思時通常作表語，與for連用。
    2．by the way, 順便（問、說一下）。
    說話者忽然想到另一件事的時候用此來表示改變話題。
    語法 Grammar in use
    賓語從句（2）
    在以前已介紹過賓語從句一般由that, which和whom引導(dǎo)，它們有時在口語中可以省略。除此之外，賓語從句還可以由when, where, what, why, how以及 if和 whether這些疑問詞來引導(dǎo)，而它們在句中往往不能加以省略。無論是that, if還是wh-疑問詞引導(dǎo)的賓語從句通常都應(yīng)以陳述句的形式出現(xiàn)。
    請看例句：
    She wants to know when you'll have a bath.
    她想知道你何時洗澡。
    I don't know where she lives.
    我不知道她住在哪兒。
    He wants to know what you are cooking.
    他想知道你在做什么飯。
    She wants to know why Mary is late.
    她想知道瑪麗為何遲到。
    He wants to know if you are tired.
    他想知道你是否累了。
    詞匯學(xué)習(xí) Word study
    1．extra
    （1）adj. 額外的；外加的；另外收費的：
    Could you get an extra bottle of milk?
    請你再拿一瓶牛奶好嗎？
    On Sundays, she always gets some extra sleep.
    星期天她總是比平時多睡一會兒。
    Guests at this hotel can use the gym at no extra cost.
    這家飯店的客人們可以使用健身房，不再額外收費。
    （2）adv. 額外地；另外：
    He usually works extra on weekends.
    他通常在周末加班。
    They'll charge you extra for room service.
    飯菜送到房間是要另外收費的。
    She is extra nice to her colleagues these days.
    這些日子她對她的同事們特別好。
    2．overseas
    （1）adj. 海外的；國外的：
    The university recruits a large number of overseas
    students each year.
    這所大學(xué)每年招收大量的外國留學(xué)生。
    This small country depends heavily on its overseas trade.
    這個小國在很大程度上依賴于其海外貿(mào)易。
    （2）adv. 在（或向）海外；在（或向）國外：
    John is going to work overseas soon.
    約翰不久就要出國工作了。
    He has never been overseas.
    他還從未出過國。
    練習(xí)答案 Key to written exercises
    Lesson 140
    A
    1 Yes, Graham Turner is speaking to John Smith.
    2 Mary invited Mr. and Mrs. Turner to dinner.
    3 Graham Turner said he would be there at six o'clock.
    4 Because his boss wanted him to do some extra work.
    5 No, he doesn't.
    6 Mr. Turner's wife wants to know if Mary needs any help.
    B
    1 I want to know if you are late. Tell me if you are late.
    I want to know why you are late. Tell me why you are late.
    2 I want to know if you are dirty. Tell my if you are dirty.
    I want to know why you are dirty. Tell me why you are dirty.
    3 I want to know if you are lazy. Tell me if you are lazy.
    I want to know why you are lazy. Tell me why you are lazy.
    4 I want to know if you are busy. Tell me if you are busy.
    I want to know why you are busy. Tell me why you are busy.
    C
    1 I want to know if you are writing. Tell me if you are writing.
    I want to know what you are writing. Tell me what you are writing.
    2 I want to know if you are cooking. Tell me if you are cooking.
    I want to know what you are cooking. Tell me what you are cooking.
    3 I want to know if you are painting. Tell me if you are painting.
    I want to know what you are painting. Tell me what you are painting.
    4 I want to know if you are playing. Tell me if you are playing.
    I want to know what you are playing. Tell me what you are playing.
    D
    1 I want to know if Tom got up early. Tell me if Tom got up early.
    I want to know when Tom got up. Tell me when Tom got up.
    2 I want to know if Tom arrived late. Tell me if Tom arrived late.
    I want to know when Tom arrived. Tell me when Tom arrived.
    3 I want to know if Tom did his homework yesterday. Tell me if Tom did his homework yesterday.
    I want to know when Tom did his homework yesterday. Tell me when Tom did his homework yesterday.