Unit 27 The past and the future. The objectives of the unit. Learn how to talk about habits and routines in the past. Learn vocabulary for describing your family. Learn the first conditional with if . Learn how to use the different meanings of so. Session I.
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Change your feelings or mood very often
find it difficult to wait for things to happen
Become angry very fast
Are quiet and do not get angry easily
Are rather or very emotional and imaginative
Enjoy being with other people
See the future as bad
1. used to 的用法
used to 用来表示现在已经不存在的过去的习惯或常规。
___Franco used to see his cousins almost every day, but he does not now.
___Franco’s father used to be a farmer, but he isn’t now.
否定句：did not use + 动词不定式
I didn’t use to like London, but I do now.
I didn’t use to smoke, but I do now.
疑问句：Did + 主语 + use + 动词不定式
Did you use to smoke? No, I didn’t.
2. for 和 since 用来表示时间
· for 表示一段时间。如：
How long has he lived in London? He’s lived here for three years.
How long did he work there? Three years. or He worked there for three years.
注意：在问句中，How long 前一般不用 for , 但在省略问句中一般需要用for。如: I’m going into town. For how long? / How long for ?
· since 自从……，用来表示从过去某个具体的时间点开始 的动作或状态。如：
I have been in Scotland since last Friday.
· 二者的区别在于: for 后面跟表示一段时间的短语，而since 后面则跟表示具体时间的短语。如: for five minutes, for two weeks;
since yesterday, since last Monday, since five days ago
so + adj
分句 + so (结果从句)
so + 倒装结构 （v + s）
so that + s + v