目标：
一、知识目标：
1.能够读懂、听懂天气预报以及对天气状况的描述和预测。
2.根据天气情况为他人提出建议并给出原因。
3.掌握目标语言：
（1）词汇：camera, umbrella, pleasant, southeast, from time to time, fall, possible……
（2）短语：the best time to , in winter, take photos of , compared to ……
（3）句型：It’s not to hot.
The best plan is to arrive in New England in September.
It’s a good idea to bring your camera……
（4）语法功能：能够就某一问题给出建议，并使用连词because ,so,but写出原因和说明。
二、情感态度
学会在旅游中解决学习与生活中的实际问题，培养学生爱护大自然，保护环境。
三、学习策略
能够关心他人，为他人排忧解难，解决学习与生活中的实际问题。
四、学习任务：能够就选择最佳时机来中国游玩提出建议。
Teaching steps:
Step1：Warming-up
Ｔ：We all know well about our hometown. Can you talk about the weather of four seasons in our hometown? what’s the weather like in spring, summer, autumn and winter in our hometown?
Ss: Work in pairs to talk about the weather about our hometown.
Step2：In put
Activity1
T: Show some pictures about three cities in America (Washington D.C, New York, Los Angeles), ask them if they know the names of the city and the seasons of the city.
Ss:Work in groups to talk about the pictures.
Activity2
T: The best time to visit America depends which part of America you are going to visit. Read the passage and find out :How many places in America are mentioned in the passage? What are they?
Ss: Read the passage quickly and circle the names of the cities.
Step3：Practice
Activity1
Teacher’s activity
Read the example with the class
Ask them to complete the activity individually, and then check with a partner.
Ss’ activity
Read the passage quickly.
Complete the activity and check the answers each other Activity2
T: Let the students read the passage carefully and complete the sentences on P91.
Ss: Read the passage and fill in the blanks then check with their partners.
Activity 3
T: Read the passage again and talk about the advice .
Ss : Ask and answer in pairs.
Step4：Writing
T: If you are a tour guide ,some visitors want to visit your hometown or your city ,you should give them some advice and give the reasons by using because ,so and but.
Ss:Write a passage to talk about your city or hometown.
Step5：Feedback
Exercises:
一．根据汉语提示完成句子
1.Do you have a _________ (照相机)?
2.The colour ________（雨伞 ）are beautiful.
3.How many ______（国家）are there in the world?
4.He is ________（穿）a black suit.
5.American call “autumn”_______（秋天）
二．根据汉语完成句子
1.下周日天气会怎样？
_______ ________ the weather _________ _________ next Sunday?
2.英国的冬季总是温暖而潮湿。
It’s always ________ and ________ _________ winter in England.
3.何时是参观你们国家的最佳时间？
________ is the _________ time ________ __________ your country?
4现在出去散步怎么样？
_________ _________ going out ________ a walk now?
5北京是中国最大的城市之一。
Beijing is ________ _________ ________ __________ cities in China.
6.这里有时候下雨
It rains ________ _________ _______ ___________ here.
7.带上游泳衣是一个好主意。
It’s a good idea _________ __________ the swimming clothes with you.
环节六：Summing-up
T:This class we have finished unit 2, do you have any problems about this unit? You can discuss with your partner.
Ss: Work in groups to talk about their problems. They can get help from each other and their teacher.
总结：
一.动词不定式用法
1. 作主语
动词不定式作主语时，句子的谓语动词常用单数，其位置有以下两种：
(1)把不定式置于句首。如：
To bring your camera is a good idea.
(2)用it作形式主语，把真正的主语不定式置于句后，常用于下列句式中。如：
It＋be＋名词＋to do
It's a good idea to bring your camera.
It＋be＋形容词＋for sb＋to do
It is difficult for us to finish writing the composition a quarter of an hour. .
2.作表语
不定式作表语表示具体动作或将来动作；动名词作表语表示抽象的一般行为。
(1).Our work is serving the people.
(2).What he likes is taking a walk after supper.
(3).The story told by Mr.Wang is interesting.
3.作定语
(1)不定式作定语
不定式在句中作定语，置于被修饰的名词或代词之后。如：
The next train to arrive is from Washington.
Do you have anything to say on the question?
Step7：Homework
Do workbook P152 Exercrises2 and 3.
检测题：
一．单项选择
1.Please be quiet, children. ________ talk so loudly in the church, will you?
A.Don’t B. Mustn’t C. Can’t D. Shouldn’t
2.? Mr Jackson, must I finish my homework in class now?
- No, you ________. You can do it at home and hand it in tomorrow.
A. mustn’t B. may not C. don’t have to D . can
3.-Must I return the book this morning?
-No, you _______ . But you __________ to return it before next Monday.
A. needn’t , must B. mustn’t , may C. mustn’t , can D. needn’t, need
4.Bill’s mother often tells him ________ spend too much time playing computer games.
A. not to B . to not C. don’t D. doesn’t
5.Your advice sounds _____ . We’ll have another meeting to discuss it then.
A. good B.well C. loud D. loudly
二．连词成句
1.freezing, cold, is, it, isn’t?
___________________________________________
2.it, will , snowy, be?
___________________________________________
3.probably, hot, and , be, wet, it, will.
___________________________________________
4.it, be, quite, may, cool.
___________________________________________
5..the, when, is , best, city, your, time, to, visit.
__________________________________________
参考答案：
一．1.A 2.C 3. A 4.A. 5. A
二．1.It is freezing cold, isn’t it?
2.Will it be snowy?
3. It will probably be hot and wet.
4.It may be quite cool.
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