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20yearsold=20-year-old二十岁1.Simonisan______boy.Itmeansheis_______.A.18yeasold;18yeasoldB.18-year-old;18yeasoldC.18yeasold;18-year-oldD.18-year-old;18-year-oldenough充足的1.enough+名词例如：enoughtime足够的时间enoughvegetables足够的蔬菜2.形容词、副词+enough例如：quicklyenough足够快cleverenough足够聪明•他年龄足够大，可以去上学。•Heis____________toschool.•我没买足够的糖。•Ididn’tbuy________________.oldenoughenoughsweetssavesbfrom…把某人从……中救出来汤姆把他的妹妹从河中救出来了。Tomsavedhissisterfromtheriver.alone独自的•beathomealone独自一人在家•alone=byoneself=onone’sown单独，独自•他昨天独自一个人在家。Hewasathomealoneyesterday.•我的妹妹不喜欢独自呆在家里。Mysisterdoesn’tliketobe/stayathomealone.hearsomeoneshouting听到有人在叫喊1.hear/see/find/watchsb.doingsth听到/看到/发现/观看某人正在做某事a.他听到有人在隔壁唱歌。He______someone_____nextdoor.2.hear/see/find/watchsb.dosth经常听到/看到/发现/观看某人做某事b.他经常看到一个男孩在操场上打篮球。Heoften______aboy_________ontheplayground.heardsingingseesplaybasketball_________________隔壁pourover往……倒•南希把果汁往她的男友头上倒。Nancypouredjuiceoverherboyfriend.putout扑灭•消防员把水往那房子上浇水把火扑灭了。Thefiremen_______________thehouseto________________thefire.inhospital住院inthehospital在医院里•Hewas________foramonth.他住院一个月。•Heworks_____________.他在医院里工作。Mymotherisill____hospital.Ihavetolookafterher_____hospital.A.in;intheB.in;inaC.inthe;inD.atthe;atinhospitalinthehospitalA他上个月住院一个星期。Hewasinhospitalforaweeklastmonth.givesb.sth.=givesth.tosb.给某人某物•他给了我一本书。Hegavemeabook.=Hegaveabooktome.