Unit 2 How often do you exercise？（第1课时）【Learning objectives】Knowing : 本课的14个单词与2个短语 .Practing:1 能够完成关于habit的话题讨论与描述. 2 学生根据实际情况回答彼此生活习惯,完成调查.【Important points】 通过学习本课的内容掌握一些频率副词在句中的用法。【Difficult points】写作训练【Learning process】一、自主学习Task 1:（1）读 Katrina写给笔友的一封信，回答下列问题。 a. How often does she exercise? b. How often does she drink? c. Does she eat junk food very often? d. Do you think she has healthy lifestyle? Why or why not? e. Is her lifestyle the same as yours or different? What are the differences? （2）翻译句子：(1)我尽量吃大量的蔬菜。(try to do ) (2)我的健康的生活习惯有助于我取得好成绩.(help sb. do sth .) (3)我有一个健康的饮食习惯。(eating habit) X （4）他的爷爷相当健康，他每天都照顾我的弟弟 。(pretty, healthy, look after) Task 2:小组活动，通过调查小组成员生活习惯，讨论谁的习惯最好,谁最健康。二、合作共建How healthy areyou ? Write down your own habits.注意用上一些频率副词及词组。三、系统总结1 总结一下本课所学的频率副词和词组。2 总结一下你认为健康的生活方式。四、诊断评价1 翻译下列词组(1) 许多，大量的_ (2)一星期一次_(3) 照料，照顾 _ (4)垃圾食品_(5) 放学回家 _(6)尽力，努力做_(7)与.不同 _(8)帮助某人做_2 词形变化(1)He says its bad for his _(unhealthy)(2)She tries _ (eat)a lot of beef.(3)Lilys _ (sleep) habits are pretty good.(4)My mother wants_ (I) to drink it.(5)My mother wasnt at home yesterday, I had to help my father _(cook)3 单项选则() 1._Do you have an English party?-Once a month. A. How oldB. How far C. How often D. How long() 2._they are brothers, they dont look like each other at all. A. Because B. ThoughC. WhenD. As( ) 3. They try _it together.A. to move B. move C. moving D. are move( ) 4. Im not very strong, _I usually exercise. A. butB. so C. as D. to ( ) 5. His ideas are the same _ hers. A. fromB.forC. as D.to() 6. We eat a lot of_ and _, but little _.A. fruit, vegetables, meatB. fruits,vegetables, meatC. fruit, vegetable, meat D.fruit, vegetable, meats4. 改写短文请将3a部分Katrina给笔友的书信用第三人称改。