必修一Unit 5 课文内容1.He was the first man to land on the moon in July 1969.本句中，名词man被序数词the first修饰，后面的不定式短语to land on the moon in July 1969为后置定语，修饰the first man.△the first/second ... + 名词+ 不定式当名词前有the first, the second等序数词时，后面常用不定式（短语）做后置定语。
Eg. Tom is the first person to think of the idea.Li Ming was the third to arrive.△序数词、最高级、the last, the only等词或被这些词修饰的名词/代词后，常用不定式作定语。
Eg. He was the best man to do the job.练习：1. 在课堂上，他总是第一个回答问题的学生。
He is always the first student ______________ in class. (answer)2. Mo Yan won the 2012 Nobel Prize for Literature. He is the first Chinese ______ the prize.A. has wonB. to winC. wonD. win2.The time when I first met Nelson Mandela was a very difficult period of my life.这是一个主从复合句，定语从句when I first met Nelson Mandela修饰先行词the time，关系词when在句中作时间状语。
△when引导的定语从句⑴when可引导限制性定语从句，也可引导费限制性定语从句，先行词往往是表示时间的名词，如day, time, year, occasion等、⑵when引导定语从句时，相当于“相应的介词in/during/at/on...+which”Eg. I still remember the day when (= on which) I first met Jennifer.Next month, when (= in which) you’ll spend your summer holidays in your hometown, isapproaching.练习：1.I’ve always longed for the days. I should be able to be independent then.→_______________________________________________________2.There are moments. I forget all about it then.→_______________________________________________________3. ... Only then did we decide to answer violence with violence ...句中only then置于句首，句子用的是部分倒装结构。
