Unit21TheweatherforecastNewWords&Expressionsforecastn.预测，预报announcern播音员，节目主持人goovertov.+adv.转到forecastern.预报员thenextfew接下来的几个bringin到来NewWords&Expressionssouthwestn.西南movev.移动，搬家airn.空气yetadv.还没有，尚未rainn.雨lastadv.最近一次地graduallyadv.逐渐地risev.上升trainn.火车degreeCelsius摄氏度fallv.下降outlookn.前景，展望Grammar陈述句（Statements）1.Fromtoday,thewindwill/won’tfeelcold.2.We’llhavesomerainthisweek./Wewon’thaveanyraintoday.3.They’llprobablymovehouseinayear’stime./Theyprobablywon’tmovehouseyet.4.Itwasdryandcoldlastmonth.一般疑问句及简短回答（SimpleQuestionsandShortResponse）问句回答Willthewholecountryhavesomesnowthisweek?Yes,itwill./No,itwon’t.Wasitdryandcoldlastmonth?Yes,itwas./No,itwasn’t.反义疑问句（TagQuestions）肯定陈述句+否定的反义疑问句肯定回答Thewholecountrywillhavesomesnow,won’tit?Yes,itwill.Lastmonthwasunusuallydryandcold,wasn’tit?Yes,itwas.特殊疑问句（Wh-Questions）问句回答Whenwilltheymovehouse?(They’llmovehouse)inayear’stime,Ithink.Whendidtheymovehouse?(Theymovedhouse)ayearago.PastFutureashorttimeagoinashorttimeamomentagoinamomentafewminutesagoinafewminutes’timeanhouragoinanhour’stimetwoweeksagointwoweeks’timeamonthagoinamonth’stimetwoyearsagointwoyears’time1A:Whenwilltheymovehouse?B:They’llprobablymovehouseinayear’stime.2A:Willtheymovehousesoon?B:No,theywon’tmovehouseyet.A:Whenwilltheymovehouse?B:Inayear’stime,Ithink.3A:Didtheymovehouseayearago?B:No,theydidn’t.A:Aretheymovinghousenow?B:No,theyaren’t.A:Willtheymovehouseinayear’stime?B:Yes,theywill.4A:Whataretheydoing?B:They’removinghouse.A:Whendidtheymovehouselast?B:Theymovedhouselastayearago.A:Andwhenwilltheymovehouseagain?B:They’llprobablymovehouseagaininayear’stime.Homework1.听：U16-U212.读和背诵：U213.写：抄写U21新单词英文3，中文1《单元随课练》U214.每周一句：Iamaslowwalker,butIneverwalkbackwards.(America)我走得很慢，但是我从来不会后退。（亚伯拉罕.林肯美国）
