《新概念英语自学导读第一册》是《新概念英语》系列的一套辅助教材。文章对《新概念英语》中的语法，词汇和长句难句都做了详细的剖析和阐述，从而更好的帮助同学们学习和吸收。下面就一起来学习下吧！
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。
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：
词汇学习 Word study
1. mean v.
（1）意味着，即：
（2）（词语）表示……意思：
（3）意指；意欲：
2. water v.
（1）浇（洒）水；供水；喂水：
（2）充满水；充满泪水；流口水：
（3）搀水冲淡；加水稀释：
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?
