译林版七年级下册英语Unit5-Grammar介绍.ppt

* We use the simple past tense to talk about things in the past. 一、什么情况下使用一般过去时? went是go在一般进去时中所用的动词形式, 是go的过去式。 A month ago, Millie and Amy went to Sunshine Park. 一个月前，米莉和艾米去了阳光公园。 Last Sunday, they went to the park again. 上个星期天, 她们又去了那儿。 2. We form the simple past tense by adding ‘-ed ’ to regular verbs. 提示：一般过去时，常与表示过去的 时间状语连用，如：yesterday, last night, a month ago, yesterday afternoon, last week, ten years ago ，just now, in 1999等. 1 绝大多数动词 +ed walk—walked 2 以e结尾的动词 +d live—lived 3 以辅音字母+y结尾的动词 变y为ied cry—cried 4 以一个元音字母+一个辅音字母结尾的短动词 双写末尾的辅音字母+ed stop—stopped 二、规则动词过去式的构成方法 提示: 以元音字母+y结尾的动词 按第一条规则，即：+ed, 如: stay —stayed want— talk — like — worry — try — stop — wanted talked liked worried tried stopped 写出下列动词的过去式。 三、不规则动词的过去式不是加ed 构成的, 需要我们记住它们。不规则动词的过去式归纳起来有这样几种类型(见下表)： 1 与原形一样, 没有变化 cost-cost put-put 2 改变了元音 write-wrote know-knew 3 改变了辅音 make-made spend-spent 4 元音和辅音都变化了 leave-left teach-taught Infinitive Past tense am \ is was are were begin began hit hit bring brought build built buy bought can could Infinitive Past tense see saw tell told do did draw drew put put drive drove eat ate fall fell start ______ love _________ play ______ plan ______ 9. leave _____ 10. tell _____ 11. stand _____ 12. bring ______ 5. reply _____ 6. say ________ 7. meet _____ 8. hear ______ started played loved planned said replied left met stood told heard brought Finish Part A on page 62. spell(拼写） the past form of verbs plan stop stay cry buy chat live This morning, we _____ (go) to the Fun World Museum. When we ____ (get) to the museum, there _____ (be) a lot of people there. We ___