八年级英语上册Unit5BirdwatchersVocabulary精品学案牛津译林版课题8AUnit5BirdwatchersVocabulary学习目标知识目标学习用否定前缀构成反义形容词并记住一些常用的这类词。能力目标学习用否定前缀的形容词表达否定含义。学习重点学习用否定前缀构成反义形容词的方法及含义。学习难点用否定前缀的形容词表达否定含义并记住一些常用的词。课前自学一、请写出下列词汇的反义词。helpful___________kind__________grateful___________lucky____________happy____________usual__________二、正确地读出这些单词。impolite,dishonest,unnecessary,correct,common,impossible,unfriendly,unwelcome,unable,incorrect,uncommon,litter,manners,regular,irregular三、在文中找出这些短语并在下面写出汉语意思。walkalongwaywearnewleathershoesleavelitterthereinthefutureshowgoodmannerstoothers四、经过你的学习，请总结规律。un-dis-im-in-ir-课堂交流展示一、组内展示学案中的第一、二、三题，再由某一具体小组为主体进行学习。注意新单词的读音。二、Freetalk(talkaboutZhalongNatureReserve)两人一组回忆课文并互相提问。三、Presentation(学生或教师)Withsomeadjectives,wecanchangethemeaningbyaddingaprefix（前缀）.Addingtheprefixes“dis-”,“im-“in-”“ir-”or“un-”toanadjectivewillexpresstheoppositemeaningoftheword.Theseprefixesmean“not”or“theoppositeof”e.g.Trainersarecomfortabletowear.Smallshoesareuncomfortable.Ifsomeoneshowsgoodmannerstoothers,heisapoliteperson.Ifsomeonedoesnotshowgoodmannerstoothers,heisimpolite.你可以再列举一些吗？四、PracticeA．Matchtheadjectivesontheleftwiththeiroppositeontheright.(PartA)B．Playagame.每人准备好5张分别带有dis-,in-,im-,ir-un-,前缀的卡片。每组选一名代表，然后从余下的学生中挑选一位发令员，其余学生做裁判。比赛开始，发令员大声读出形容词，要求学生快速反应举起写有正确否定前缀的卡片。举错卡片或反应明显慢于其他选手即遭淘汰，直至淘汰到最后一人，该学生即为优胜者，其所在小组为优胜小组。还可以按此方法做几轮游戏，各组累计总分。C．Helpthestudentstocategorizethewordsusingthefollowingtable.Andworkoutsomeoftherulesun-dis-im-in-ir-五、小组讨论并班内展示。Whatshouldyoudoandwhatshouldn’tyoudowhenyougobirdwatching?六、PlayagameGame:Preparealistofadjectiveswithpositiveandnegativemeanings.Readtheadjectivesoneatatime.Everytimestudentshearanegativeadjective,theyshouldstandupandrepeatit.Iftheadjectivehasapositivemeaning,studentsshouldremainseatedandkeepsilent.课堂达标检测一、根据汉语提示写出句中所缺的单词。1.It’s_______________(必要)totakeanumbrellawithyou.Butit’s______________(没有必要)todothisinBeijing.2.It’snotgoodtobea____________(不诚实)boy.3.Nothingis______________(不可能)ifweputourmindsintoit.4.It’s________(不礼貌)tolookatforeigntouristswitheyeswideopen.5.ThenewT-shirtmakeshimfeel_____________(不舒服).二、写出下列词汇的反义词。politecommonwelcome_______popularsafeeasyregularhelpfulkindlucky_______三、根据句意及字母提示填空1.Hedidn’tpasstheexam.Helooksu_____________.2.Thepastformof“go”isani__________change.3.Hebrokehisleginanaccidentyesterday.Heisu__________totakepartinthesportsmeeting.4.‘Gardon’isani___________spelling.Itmustbe‘garden’.5.Anh___________childnevertellslies.6.Doyourhomeworkascarefullyasp__________.7.Ithinkit’si___________foryoutodosomuchworkinanhour.Vocabulary一、1.necessary,unnecessary2.dishonest,3.impossible4.impolite5.uncomfortable二、1.unhappy2.irregular3.unable4.incorrect5.honest6.possible7.impossible三、impolite,uncommon,unwelcome,unpopular,difficult,irregular,unhelpful,unkind,unlucky,dangerous,untidy,false
