【正文】 3. (L10P42M1) I’ ve lost 7 kg in the last two months. 4. (L64P3M2) I haven’ t been sleeping well since I returned home. 【預(yù)習(xí)檢查】 Complete the following sentences with the proper tense. 1)We _____ (study) English for about five years. 2)They ____ (live) in the south since their daughter was born. 3)I _____ (read) our article three times. It’ s well written. 4)The student ____ ( finish) her homework already. 5)Eric ___ (go) back to his hometown today. 6)The police ________( just finish) searching the area. 【課堂教與學(xué)】 Step1. I 請(qǐng)用“現(xiàn)在完成時(shí)”完成下列句子 （這些句子你們都學(xué)過） 1. 19% of the teenagers say that they （已經(jīng)嘗試）controlling their weight. 2. People （已經(jīng)表現(xiàn)出） great interest in his disappearance. 3. Some people in Dover also say that they （已經(jīng)見過外星人）。 7. 這房子已漆了一個(gè)月。ve told C. I39。 haven’ t found D. is missing。 had seen D. have been。 haven39。 4. 他們一直在造一座橋。 4. Police in America _____（加快搜索） a fifteen yearold boy. 5. Justin （已經(jīng)失蹤） for two weeks now. II. 請(qǐng)用“現(xiàn)在完成進(jìn)行時(shí)”完成下列句子 （ 一直在下雨） since last Sunday. 2. They （已經(jīng)等待） you for two hours. 3. Tom （一直在學(xué)） English since three years ago. 4. The little girl （ 一直在讀） the book. 5. I （一直在打掃） the rooms the whole morning. Step2 . 現(xiàn)在完成時(shí)和現(xiàn)在完成進(jìn)行時(shí)的構(gòu)成及用法歸納 A. 構(gòu)成形式（以 do為例） 現(xiàn)在完成時(shí) 現(xiàn)在完成進(jìn)行時(shí) 主動(dòng)形 式 have (has) done 主動(dòng)形式 have (has) been doing 被動(dòng)形式 have (has) been done 被動(dòng)形式 無 B. 主要用法 現(xiàn) 在 完 成 時(shí) 主要用法 典型例句 表示一個(gè)過去發(fā)生并結(jié)束的動(dòng)作，但是對(duì)現(xiàn)在有影