Question

2．---Mike，you must go to bed now．
---Why？
---Becauseif you always stay up late，you will be too tired to pay attention to what the teacher says．
（如果你总是熬夜，你将太累以致无法注意老师讲的内容）．（too）

Answer 1

分析 if you always stay up late，you will be too tired to pay attention to what the teacher says．

解答 答案：if you always stay up late，you will be too tired to pay attention to what the teacher says．．这里需用if引导的条件状语从句表示如果…，遵循主将从现的规则，主句是一般将来时will+动词原形，主语是you，表示太…以至于，用too…to do sth，累了用tired，故you will be too tired to，注意用pay attention to后加宾语老师讲的内容，用宾语从句来表达，也就是老师说了什么，what是连接词，主语the teacher 谓语用三单says，故you will be too tired to pay attention to what the teacher says，从句是一般现在时，主语是you，熬夜stay up late，加上频率副词always，故if you always stay up late，故答案是 if you always stay up late，you will be too tired to pay attention to what the teacher says．

点评 这里是复合句的呈现，课下多做一些复合句的联系，孰能生巧．