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f friends since we came here. 過去進(jìn)行時(shí) 1. 指在過去的某一個(gè)時(shí)間正在發(fā)生的動(dòng)作。 I can swim. I could swim at the age of five. 情態(tài)動(dòng)詞 2. 解釋 2) Must /have to Must 表示主觀意愿,否定句用 Mustn’t,否定回答用 needn’t I must go now. You mustn’t play in the street. Must I clean the room now? No,you needn’t. have to表示客觀條件的限制的 “ 不得不 ” ,它有時(shí)態(tài)和人稱變化,需要助動(dòng)詞來否定和疑問。 I don’t have to carry the big box. He had to wash his clothes. 情態(tài)動(dòng)詞 2. 解釋 3) May 表示請(qǐng)求別人允許。 2. 時(shí)間狀語 1) at this time yesterday 2) at five o’clock yesterday afternoon 3. 動(dòng)詞由 be動(dòng)詞 +動(dòng)詞 ing形式構(gòu)成 4. 例句 He was watching TV at this time yesterday. 過去將來時(shí) 1. 指對(duì)過去的某一個(gè)時(shí)間來講,將要發(fā)生的動(dòng)作。 3. 例句 He would go to the park the next day. He said he would work hard next term. 過去完成時(shí) 1. 指對(duì)過去的某一個(gè)時(shí)間來講,已經(jīng)發(fā)生的動(dòng)作。 He may be a teacher. He may live in this building. 系動(dòng)詞 1. 我們所學(xué)過的系動(dòng)詞是 1) Get, turn, be e, be動(dòng)詞 2) 感觀動(dòng)詞 look, sound, smell, taste,feel 2. 系動(dòng)詞只和形容詞連用,構(gòu)成系表結(jié)構(gòu) 1) I feel hungry. 2) The day gets longer and longer. 3) He looked happy. 實(shí)義動(dòng)詞 1. 實(shí)義動(dòng)詞指的是有具體行為意思的動(dòng)詞。 be動(dòng)詞的用法 3. Be 動(dòng)詞在時(shí)態(tài)中的運(yùn)用 1) 在現(xiàn)在進(jìn)行時(shí)中 We are talking. 2) 在過去進(jìn)行時(shí)中 We w