一般过去时的讲解PPT课件

He plays football every afternoon. He _p_la_y_e_d basketball yesterday afternoon.
He does his homework every evening.
He _d_i_d_ some reading last night.
动词原形、第三人称单数
动词过去式
Hale Waihona Puke Baidu
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They don’t watch TV in the evening. They _d_id_n_’t__w_at_c_hTV last night.
She doesn’t play basketball after school. She _d_id_n_’t_p_l_a_y_ basketball after school yesterday.
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规则动词词-ed的读音清念 /t/ ,元浊/d/ ;
/t/ /d/ 之后念/id/ 1、清念 /t/ ，即 ed 在清辅音后面念 /t/ , 例：finished helped passed cooked 2.元浊 /d/ ,即 ed 在元音，浊辅音后面/d/ 例：borrowed enjoyed called moved
实义动词分规则变化和不规则变化。
规则变化有以下几种：
(1) 一般情况下在动词后加-ed。
e.g. play—played
visit—visited
walk—walked
clean—cleaned
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(2) 以不发音的e结尾的词，在词尾 加-d。 e.g. live—lived like—liked dance—danced hope—hoped
He __h_a_s_ fruit every day.
昨天他吃了3个苹果。
He __h_ad__ 3 apples yesterday.
have/ has
ha- d
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I get up at 6:30 every morning. I _g_o_t up at 9:00 last Sunday.
3、/t/ /d/ 之后念 /id/ , 即 ed 在 /t/ /d/ 音后 面念 /id/ 例：wanted shouted needed counted
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◆不规则变化(需逐个记忆)： do — did come — came go — went sit — sat have — had can — could take — took give — gave put— put get — got swim — swam eat — ate tell— told sleep — slept see — saw wear — wore lie — lay drink — drank find — found write — wrote can — could will — would sing —- sang read — read 10
他现在在北京。 He __is__ in Beijing now. 他昨天在上海。 He _w_a_s_ in Shang- hai yesterday. 13
他们今天在中国。 They _a_r_e_ in China today.
他们昨天在日本。 They _w_e_r_e in Japan yesterday.
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(3) 以一个元音加一个辅音字母结尾的 重读闭音节结尾的单词，要先双写 这个辅音字母，再加-ed。 e.g. stop—stopped drop—dropped plan—planned
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(4) 以辅音字母加y结尾的单词，先改y 为i，再加-ed。 e.g. study—studied carry—carried 不规则变化需要按一定的规律逐个 记忆。
在本单元中出现的不规则动词有以 下几个：
do — did read — read get — got have/has — had
go — went see — saw sit — sat am/is — was
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III. 写出下列单词的过去式
talk talked
milk milked
am /is was
am/ is
was
are
were
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每天，早餐我吃鸡蛋和牛奶。 I h_a_v_e_ eggs and milk for breakfast every
morning.
昨天，早餐我吃面条。 I _h_a_d_ noodles for breakfast yesterday
morning. 他每天都吃水果。
Do you go to school on foot every day? _D_id_ you _g_oto school on footyesterday.
Does he go to school by bus every day?
_D_id_ he _g_o_to school by bus yesterday?
动词过去式的变化
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1. 动词be的变化：
am
is
was are were
2. 助动词do的变化：
do→ did (在过去时里助动词do没有
人称和数的变化)
如：Did you play soccer yesterday?
Did he play soccer yesterday?
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3. 实义动词的变化：
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Grammar
知识结构
意义
1. 表示过去某个时间发 生的动作或存在的状态。 2. 表示过去经常或 反复发生的动作。
一般过去时 构成
动词的过去式
yesterday morning/afterno last night/week/year/ Sunday/ 常用时间标志 in 1990 t- wo years/weeks ago 2
are were
go went
ride rode
feed fed
take took
do did
see saw
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Please look at the sentences
我今年12岁. I _a_m_ 12 years old this year.
我去年11岁. I _w_a_s_ 11 years old last year.