江苏省宜兴市屺亭中学九年级英语上册 9A《Unit 4 TV programmes》Grammar(12)课件 牛津版.ppt

grammar unit4tvprogrammes readsaturdaytvschedule thenhelpmillietofinishthepassagewithfrom to andbetween and wecanuse between and from to tospecifyperiodsoftime samgetsupat7 30a m hegoestoschool hehasbreakfast lessonsstartat8 00a m hewon thavelunch 12 00 around4 50p m hegoeshome intheeveninghewatchestvforhalfanhour hehassupper thathedoeshishomework hewon tgotobed 9 00 before until before after after until fillintheblanks usebefore after untiltotalkaboutmillie stvschedule practice whilemilliewaswatchingtv eddiewassleeping as whilemilliewaswatchingtv andycameintotheroom longaction longaction longaction shortaction asmilliesatdownonthesofa andycameintotheroom shortaction shortaction while asmilliewaswalkingpastthebookshop shesuddenlythoughtofbuyingatvguide walkpastthebookshop suddenlythinkofbuyingatvguide whileas longaction pastcontinioustense longaction pastcontinioustense shortaction simplepasttense conclusion 这两个连词都可引导时间状语从句 但用法有所不同 1 当某事正在进行的时候 又发生了另一件事 while as都可用来引导表示 背景 的时间状语从句 as whileiwaswalkingdownthestreetinoticedapolicecar 2 当两个长动作同时进行的时候 常用的是while whilemotherwascookinglunch iwasdoingmyhomework while as 3 当两个动作都表示发展变化的情况时 最常用的是as 例如 aschildrengetolder theybecomemoreandmoreinterestedinthingsaroundthem 4 当两个短动作同时发生时 或表示 一边 一边 时 最常用as 例如 justashecaughtthefly hegavealoudcry shelookedbehindfromtimetotimeasshewenthome translatethefollowingsentences 1 我父亲在看报纸时睡着了 myfatherfellasleepwhile ashewasreadingthenewspaper 2 妈妈做饭的时候 我在做作业 whilemumwascookingdinner iwasdoingmyhomework 3 我到家的时候 他正在吃晚饭 as whenigothome hewashavings