Unit 1 Where did you go on vacation?

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1 Unit 1 Where did you go on vacation?
单元清

2 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： watch→watched；help→helped；work→worked 以字母e结尾的规则动词，只加­d，如： love→loved；live→lived；arrive→arrived 以辅音字母加y结尾的动词，变y为i，再加­ed，如： study→studied；cry→cried；worry→worried 以重读闭音节结尾的动词，末尾只有一个辅音字母，先双写这个辅音字母，再 加­ed，如： shop→shopped；stop→stopped 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。

3 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。 let→let，put→put，read→read，cut→cut等。 (2)遇见i改为a。 swim→swam，sing→sang，begin→began，sit→sat，give→gave，drink→drank 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。 bring→brought，buy→bought，think→thought，catch→caught，teach→taught

4 (4)中间去e末尾加t。 feel→felt，keep→kept，sleep→slept，sweep→swept，meet→met， feed→fed 助记：动词中间两个e，去掉一个后加t；d来结尾，去e之后不加t。 (5)把i变为o。 ride→rode，drive→drove，write→wrote 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。 know→knew，grow→grew，throw→threw，draw→drew (7)以d结尾的词，把d变成t。 build→built，lend→lent，send→sent，spend→spent

5 ◆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。 A holiday trip In the morning Went hiking，Took photos At noon Had a picnic(野餐) In the afternoon Went boating

6 ◆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, Nick's father took him and their dog Cookie to Red Mountain. It's 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!