Unit15 Leaning to Learn
【本讲教育信息】
一. 教学内容:
unit15 lesson 1 (I)
学会用英语简单描述个人学习英语的困难、方法
二 教学重点和难点:
1. 情态动词may, might的用法
2. 连词if, unless, once 的用法
3. 词汇和词组
三. 具体内容:
(一)情态动词may, might的用法
May 可以表示没有把握的推测,意思是"可能",但只能用于肯定句,might 表示推测时,不表示时态,只是可能性比may小。
May 还可以表允许或请求的意思,用might则语气更加委婉,客气。May 主要用于第一人称,而且要比用can正式的多。
May I ask you a question?
Might I use your eraser for a while?
Yes, please.
Yes, you may.
No, you mustn't.
No, you had better not.
No, you can't.
(二)连词if, unless, once 的用法
e.g. If that is true, what should we do?
Give me a call once you arrive at the airport.
Once I finish my homework, I will call you.
I won't remember new vocabulary unless I hear them.
从属连词:只能用来引导从句,不能引导词或词组。这些从属连词包括:that, when, till, after, before, since, if, because, though, although, so...that, so that..., as soon as, once...等。从属连词一般可以引导名词性从句和状语从句。
1. 引导名词性从句的从属连词:
(1)that
He said (that) he would come.
That she is still alive is true.
(2)if 是否
I wonder if he is at home.
(3)whether是否
I asked him whether he would come.
2. 引导状语从句的从属连词:
(1)连接时间状语从句的从属连词: