约17990字。

　　新目标八年级（上）英语
　　Unit 1: How often do you exercise?
　　【学习目标】
　　会使用频率副词及短语；
　　能描述课余时间的活动安排；
　　会描述基本饮食结构。
　　【语言目标】
　　● What do you usually do on weekends?  
　　I sometimes go to the beach.
　　● How often do you eat vegetables?     
　　Every day.
　　● Most students do homework every day.
　　【重点词汇】
　　●  always, usually , often, sometimes , hardly , ever, never.
　　●  how often, once , twice , three times a week , every day.
　　●  milnk food, health, unhealthy, habit, exercise, most, result, try, different      
　　maybe, although, arm, foot, tooth, ear, eye, advice, thirsty ,forget, finish, plan .
　　【应掌握的词组】
　　1. go to the movies 去看电影                 
　　2. look after = take care of 照顾
　　3. surf the internet 上网                    
　　4. healthy lifestyle 健康的生活方式
　　5. go skate boarding 去划板                  
　　6. keep healthy=stay healthy 保持健康
　　7. exercise=tach)exercise=do sports锻炼 
　　8. eating habits 饮食习惯
　　9. take more exercise 做更多的运动          
　　10. the same as 与什么相同
　　11. be different from 不同                  
　　12. once a month一月一次
　　13. twice a week一周两次                    
　　14. make a difference to 对什么有影响
　　15. how often 多久一次                      
　　16. although = though虽然                 
　　17. most of the students=most students      
　　18. shop=go shopping=do some shopping 购物
　　19. as for至于                              
　　20. activity survey活动调查
　　21. do homework做家庭作业                   
　　22. do house work做家务事
　　23. eat less meat吃更少的肉                 
　　24. junk food垃圾食物
　　25. be good for 对什么有益                   
　　26. be bad for对什么有害
　　27. want to do sth 想做某事                  
　　28. want sb to do sth想某人做某事
　　29. try to do sth 尽量做某事                 
　　30. come home from school放学回家
　　31. of course = certainly = sure当然         
　　32. get good grades取得好成绩   
　　33. some advice                              
　　34. hardly=not nearly / almost not几乎不
　　35. keep/be in good health保持健康          
　　36.be stressed紧张的，有压力的
　　37. take a vacation 去度假                   
　　48.get back 回来
　　【应掌握的句子】
　　1. How often do you exercise? 你（你们）多久锻炼一次身体？
　　How often + 助动词do(does或did) + 主语 + do sth.? 疑问词how often是问频率(多久一次),（在这里助动词do(does或did) 是起帮助构成疑问的作用）与一般现在时或一般过去时连用，回答一般是用表示频率的副词，如：once, twice, three times…, sometimes, often, quite, often, never, every day, once a week , twice a month , three times a month , three or four times a month 等。
　　翻译：“你们多久到工厂去一次？”“每星期两次。”                                                        
　　(“How often do you go to the factory?” “Twice a week. ”)
　　“他们多长时间举办一次舞会？”“通常每两周举办一次。”                                                           
　　(“How often do they have a dancing party?” “Usually, once every other week.”)
　　“他多久去购一次物？”“一个月一次。”