1、Unit 1Where did you go on vacation?单元清,英语中的动词按其过去式的构成方式可分为规则动词和不规则动词。规则动词的过去式由词尾ed构成，而不规则动词的变化因词而异。1规则动词过去式的构成和发音：一般的动词，直接加ed，如：watchwatched；helphelped；workworked 以字母e结尾的规则动词，只加d，如：loveloved；livelived；arrivearrived 以辅音字母加y结尾的动词，变y为i，再加ed，如：studystudied；crycried；worryworried 以重读闭音节结尾的动词，末尾只有一个辅音字母，先双
2、写这个辅音字母，再 加ed，如：shopshopped；stopstopped 读音规则注意：清辅音后读/t/；浊辅音和元音后读/d/；辅音/t/与/d/后读/Id/。,规则动词过去式构成歌诀过去式构成有规律，一般词尾加ed。如若词尾有个e，直接加d就可以。辅音字母y结尾，变y为i加ed。一辅重闭作尾巴，双写之后加ed。,2不规则动词的过去式的变化各异，需要特殊记忆，每个不规则动词的变换形式，都必须牢记。不规则动词的过去式变化没有统一的规则，但并非一点规律也没 有，下面我们就介绍一部分动词过去式的记忆规律。(1)动词的过去式与动词原形一样。letlet，putput，readread，cutc
3、ut等。(2)遇见i改为a。swimswam，singsang，beginbegan，sitsat，givegave，drinkdrank 助记：游泳(swim)唱歌(sing)后，开始(begin)坐(sit)下来，给(give)点喝(drink)的 吧，i就变成a。(3)过去式以ought和aught结尾的单词。bringbrought，buybought，thinkthought，catchcaught，teachtaught,(4)中间去e末尾加t。feelfelt，keepkept，sleepslept，sweepswept，meetmet，feedfed 助记：动词中间两个e，去掉
4、一个后加t；d来结尾，去e之后不加t。(5)把i变为o。riderode，drivedrove，writewrote 助记：动词过去式变i为o的单词：“骑(马)”“开(车)”“写(字)”。(6)ow/aw变为ew。knowknew，growgrew，throwthrew，drawdrew(7)以d结尾的词，把d变成t。buildbuilt，lendlent，sendsent，spendspent,写作案例 暑假里，Nick的爸爸带着他和小狗Cookie去美丽的红山(Red Mountain)玩，他们在那里度过了快乐的一天。请根据下表写一篇60词左右的短文向大家介绍他们的旅行。思路点拨 该题要求
5、学生运用一般过去时来叙述发生在过去的事情。写作时，要先交代时间、人物、地点；再按时间顺序写出活动内容；最后，写旅行的感受。,高分模板开篇点题：尼克的爸爸及他的小狗去红山took him and their dog Cookie to.旅游经历：in the morning went hiking at noon in the picnic in the afternoon went boating所感所思a happy trip美文欣赏 During the summer holiday,Nicks father took him and their dog Cookie to Red Mountain.Its a beautiful place.They had a happy trip there.In the morning,they went hiking and took many photos on the way.At noon，they had a picnic.In the afternoon,they went boating.It was dark and they had to go home.It was really a happy trip!,