你不必熬夜准备这篇报道。(needn't)

　　You ____________ preparing the report.

　　3.

　　你必须每天吃一个苹果。(have to)

　　You ____________ every day.

　　4.

　　小孩子一定不要玩火。(mustn't)

　　Little children ____________.

　　5.

　　他们昨天本不应该吵架。(ought not to)

　　They ____________ yesterday.

　　答案：一、1.mustn't　2.ought to　3.needn't　4.oughtn't to

　　5．have to

　　二、1.泄气，失去信心　2.丢脸　3.失去兴趣　4.失去控制

　　三、1.break　2.minute　3.many　4.because

　　四、1.ought to learn from　2.needn't stay up　3.have to eat an apple　4.musn't play with fire　5.oughtn't to have quarreled with each other

　　1．However，as she was so afraid of being laughed at by her friends，she did not consult a doctor but...

　　然而，由于她非常怕被朋友嘲笑，所以她没有咨询医生，而是......

　　剖析：本句中含有as引导的原因状语从句。

　　考点：consult vt. 咨询；请教；商量

　　Before going on a diet，you'd better consult your doctor.

　　节食前，你最好咨询一下你的医生。

　　I think we should consult the professor on the question.

　　我想我们应该向教授请教这个问题。

　　We will consult your parents before we allow you to join in the activity.

在允许你参加这个活动前，我们将和你的父母商量一下。