1. to help students review “although” ,”unless” and “so that”
3. 在so that (in order that)引导的目的状语从句中，谓语动词用can(could),may(might),will(would),should+动词原形的形式。故上述从句在谓语动词前应加could或might,但so that引导结果状语从句时，不用此要求限制，如：They came late so that they missed the early bus.
Step 4 Complete PartA
Step 5 Complete PartB and PartC
Step 6 Question
How do you know you will use although” ,”unless” and “so that”
Step 7 Compare although” ,”unless” and “so that”
Step 8 Homework
Periods7-9 Task and Project
Teaching objectives:
4. Unless bad weather stops me, I jog every day.
(除非坏天气作梗，每天我都慢跑。)
3. Don’t promise anything unless you’re 100 per cent sure.
(不要作任何的许诺, 除非你有百分百的把握。)
2. My baby sister never cries unless she is hungry.
(我那刚出生的妹妹除非饿了，否则她是从来不哭的。)
1. Unless you take more care, you’ll have an accident.
(如果不多加小心的话，你会出事故的。)
I ______ (decide) to go home by taxi.
At the moment, a guide(保安)_____(stop) me and ____(tell) me that I ______(not pay). I felt very sorry that I ______(forget) it. I said I _____(think) I ______(do) it before I came out of the door.
Step 3 Structure
1.although的用法although意思相当于though(尽管，虽然)，用来引导让步状语从句。它所引导的从句不能与并列连词but，and，so等连用，但可以和yet，still等词连用。
如：①although the book was old, we decided to buy it.尽管这本书很旧，我们还是决定买。②there is air all around us, although we cannot see it.虽然我们看见空气，空气却存在于我们的周围。③although princeton has a world-famous university, it is still a small quiet town.普林斯顿虽然有一所世界闻名的大学，但仍然是个安静的小镇。记住,在学习连接词时,一定要弄明白他们是连接副词还是连接代词,连接副词就是副词,不作句子主要成分,连接代词要做句子成分,考试最喜欢考连接代词不仅有连接作用，而且还在从句中充当主语，表语、定语等句子成分。常见连接代词有 who , whom , whose which , what , whatever , whoever连接副词除了连接从句外，还在从句中作状语。常见连接副词有 when , where , why , how。
2 unless是从属连词，引导条件状语从句，含有否定意义，相当于if条件状语从句的否定形式。所以unless = if not。注意：unless引导的条件状语从句和if条件状语从句，与其它时间状语从句一样，用一般现在时代替将来时。
Unless: conj. 除非, 如果不
[例句]
13. Li Lei keeps _______ TV.
A. watch B. to watch C. watching D. watched
12. Your knife may ______ in your bag.
A. is B. am C. are D. be
11. “______ do you go to the zoo?” “Twice a year.”
A. How long B. How often C. How soon D. How much