冀教版七年级英语下册Unit5 I Love Learning English!全单元教案
Lesson25:A Phone Friend
Ⅰ.Learning aims:
1：Grasp main words.
2: Understand important sentences.
3: Can use important grammar.
Ⅱ.Learning main points:
1: Grasp words and phrases.
2: Key sentences and structures.
3: Learn about the tips of making phone calls.
Ⅲ.Learning difficulties:
1: Grasp words and phrases.
2: Can use important grammar.
3: Learn about the tips of making phone calls.
Ⅳ.导学环节：
(一) self-learning:
1:温故知新：
（1） I always practice ---(learn)English.
（2）They -- -- --(be going to) visit their friends.
（3）This one is C(昂贵的)，would you like that one.
（4）Look at the C(接着的) examples，and then find the answers by youself.
2：互助释义：
（1） Understand :v 懂得，理解，其过去式和过去分词均为 understood，eg:He understood its meaning at last.
（2） No problem. 没问题。用来表示同意和愉快的回答请求，也可回答感谢，意为“不客气”eg:---Thank you ----No problem.
（3）Could 的用法：
could 用作情态动词，意为“能；可能”是can的过去式，(1) 用来表示过去的能力：She could swim when she was six. 她六岁的时候就会游泳。
a. 表示许可：can和could均可用，但用could 语气更委婉, eg: Can/Could I come
in? 我可以进来吗?
b. 表示推测：对现在或将来的推测，can和could均可用，但can 通常只用于否定句或疑问句中，一般不用于肯定句，而could则可用于肯定句、否定句和疑问句，eg: You could be right.
你可能是对的。
另外：could 还可用于虚拟语气中， 构成could have done 结构表示因过去可以做的事情没有做而感到遗憾惋惜，或者 couldn't have done 表示过去本不该做的事情而做了感到遗憾懊悔等等。eg: I could have stopped them fighting. 我本来可以阻止他们打架的。