一般现在时、一般过去时研究.ppt

一、一般过去时用法 过去活动 过去状态 过去连续活动 I saw him yesterday. I was in Grade One last year. She picked it up and went out. 一般过去时的用法详解： A.一般过去时主要表示过去发生的动作或情况(包括习惯性动作) 。 What time did you get up yesterday morning? B.有些情况，发生的时间不很清楚，但实际上是过去发生的，也应当用过去时态。 I didn’t know you were so busy. C.在谈到已故的人的情况时多用过去时。 Lu Xun was a great writer. 二、动词过去式的构成 一般过去时常由动词过去式表示,规则动词的过去式其变化规则如下： A.一般情况下在动词词尾加ed work—worked want—wanted B. 以不发音的e结尾的动词，直接加d。 live-lived hope-hoped C.以“辅音字母+y结尾的动词”，变y为i,再加ed。 study—studied cry—cried D.以重读闭音节结尾，末尾只有一个辅音字母的动词，要双写词尾的辅音字母再加ed。 stop—stopped beg--begged 2.一般过去时的两种构成 be有was, were两个过去式，was用于第一、三人称单数，were用于其他人称。 Eg:她在那里。 She was there. 她不在那里。 She was not there. 她在那里吗？ Was she there? 肯定句 否定句 疑问句 实义动词在构成否定式及疑问句时，一般都 借助助动词did。 Eg: 他以前在那里工作。 I/You/He/She/They worked there 他以前不在那里工作。 I/You/He/She/They did not work there. 他以前在那里工作吗？ Did you/I/he/she/they work there? 肯定句 否定句 疑问句 1.I can’t find my pen.Who_____it?(take) 2. I______my bike,so I have to walk to school.(lose) 3. He______down and began to read his newspaper.(sit) 4. When______you______the car?In 1998.(buy) buy did sat lost took * 一般现在时 一般过去时 一般将来时 常用八种时态 现在进行时 过去将来时 过去进行时 现在完成时 过去完成时 The Simple Present Tense 一般现在时态 一般现在时 定义：表示经常性、习惯性动作或现在存在的状态。 二、一般现在时用法 习惯动作 现在情况 客观真理 主将从现 I get up at six every morning. They are very busy. He needs help. The moon moves round the earth. We’ll go there if it doesn’t rain. He’ll call you when he arrives. 1.一般现在时的动词常与often, usually, always,sometimes，never等频度副词连用。 always usuallyoftensometimes seldomnever Eg：Tom 经常早上六点起床。 Tom often gets up at six o’clock. 2. every day, once a week,on Sundays等。 Eg: 他一星期去一次动物园。 He goes to the zoo once a week. 她现在忙。 She is busy now. 她现在不忙。 She isn’t busy now. 她现在忙吗？ Is she busy now? 是的，她是。 Yes,she is. 不，她不是。 No,she isn’t. 肯定句 否定句 疑问句 回答 Tom often gets up at six o’clock. 变否定句 Tom often