练习答案 Key to written exercises
Lesson 84
A
1 I've already had some.
2 I've already had one.
3 I've already had one.
4 I've already had some.
5 I've already had one.
6 I've already had one.
7 I've already had some.
B
1 He hasn't had any beans.
He's just had some peas.
2 They haven't had any tea.
They've just had some coffee.
3 I haven't had any apples.
I've just had some peaches.
4 I haven't had any cabbage.
I've just had some lettuce.
5 She hasn't had any beer.
She's just had some wine.
6 He hasn't had any lamb.
He's just had some beef.
7 They haven't had any tea.
They've just had some milk.
8 She hasn't had any meat.
She's just had some vegetables.
9 I haven't had any chicken.
I've just had some steak.
10 They haven't had any bananas.
They've just had some oranges.
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课文详注 Further notes on the text
1．Come in. 进来吧。
这3句都是祈使句。表示请求或命令的句子叫祈使句。祈使句中主语you常不出现，谓语动词用原形，句末用感叹号或句号。读时用降调。
2．I've just had a cup. 我刚喝了一杯。
句中 cup后省略了 of coffee。
3．We're going to leave tomorrow. 明天我们就要走了。
这里的 are going to表示“打算”、“准备”。请参见 Lessons 37～38语法部分。
语法 Grammar in use
现在完成时
（1）在英语中，现在完成时主要用于以下两种情况：或者表示在过去不确定的时间里发生的并与现在有着某种联系的动作；或者表示开始于过去并持续到现在的动作。本课中萨姆所面临的是第1种情况，正是因为他吃了饭，喝过了咖啡，也休过假，因此他谢绝了汤姆的邀请，并表示今年已无可能再次休假。
（2）现在完成时在汉语中常用“了”、“过”或“已经”来表示。
（3）现在完成时由 have／has+ 过去分词构成，单数第 3人称用
has，其他人称皆用have。规则动词的过去分词与过去式相同，而不规则动词的过去分词则无统一的规律可言，需特别加以记忆。
（4）一般现在完成时通常与表示不确定的时间副词或短语连用如 just, already, before, never, ever, twice, three times等。
词汇学习 Word study
1． leave v.
（1）离开，出发：
（2）舍弃；脱离：
（3）留给，遗留；委托：
2．pack v.
（1）打包，装箱：
（2）挤满，塞满：
