课文详注 Further notes on the text

1.Can't you come in and have tea now, Peter?  彼得,你现在能进来喝茶吗?
这是否定疑问句,表示邀请。请参见 Lessons 77~78语法部分。

2.Don't you remember?  你不记得了吗?
这也是否定疑问句。

3.don't need to= needn't。
表示“不必”,是 must和 have to的一般现在时否定式。

4. a pleasant surprise  意想不到的好事,令人惊喜的事。

语法学习 Grammar in use

must, have to 和 needn't
这3个词都表示必要性。在前面已对 must和 have to介绍过。

must是情态助动词,而have to是普通动词,二者在肯定句中一般可以互换,表示不可逃避的义务或责任。must更带有说话人的主观色彩,而have to则更强调客观要求和外界影响。

must一般只能表达现在的必要性,而have to则可以表达过去或将来的必要性。

I shall have to leave London tomorrow.
我明早得离开伦敦。
I had to stop smoking because it was forbidden in my company.
因为我所在的公司内禁止抽烟,所以我不得不停止了吸烟。

如果我们用 must来提问,则只能用needn't来表达否定的回答。 needn't 还可以理解为have to的否定回答。needn't (don't need to)和 don't have to都表示不必要;而 mustn't却表示绝对禁止,在说话人看来根本没有选择余地。请看例句:

You mustn't turn left.
你不能左转弯。(表示绝对禁止)

词汇学习 Word study

1. mean v.
(1)意味着,即:
It's raining! That means you don't need to water the garden.
下雨了!这就是说,你不必给花园浇水了。

(2)(词语)表示……意思:
What does "perfume" mean in English?
perfume”一词在英语中是什么意思?
The green light means "Go on".
绿灯的意思是“继续向前”。

(3)意指;意欲:
What I mean is that we'll have to go back and look for it.
我的意思是:我们必须回去寻找它。
He didn't mean to hurt you.
他的本意并不是想伤害你。

2. water v.
(1)浇(洒)水;供水;喂水:
The garden is very dry, I'm going to water it tomorrow morning.
花园里很干了,明早我准备给它浇些水。
Tim is watering his lovely little dog.
蒂姆正在给他那只可爱的小狗喂水。

(2)充满水;充满泪水;流口水:
He felt sad and his eyes watered a little.
他感到难过,眼睛有点儿湿润了。
Ice cream always makes his mouth water.
冰淇淋总能让他馋得淌口水。

(3)搀水冲淡;加水稀释:
Someone had been watering the milk.
有人往牛奶里搀了水。
He always waters drinks and sells them to tourists.
他总是在饮料里搀水并将之卖给游客们。

练习答案 Key to written exercises

Lesson 126

A
1 Does she have to decide immediately?
   She doesn't have to decide immediately.
2 Must she decide immediately?
   She needn't decide immediately.

3 Do we have to take a taxi?
   We don't have to take a taxi.
4 Must we take a taxi?
   We needn't take a taxi.

B
1 I have to telephone him, too.
2 Mary has to wait for him, too.

3 Jim has to meet her ,too.
4 Tom and Mary have to travel by ship, too.

C
1 Do you really have to telephone him?
2 Does Mary really have to wait for him?

3 Does Jim really have to meet her?
4 Do Tom and Mary really have to travel by ship?