下面我們用代換方式練習(xí)怎么勸別人在過去應(yīng)該作某件事. 練習(xí)的內(nèi)容都是 說到彼得告訴瑪麗他在前一天晚上吃多了肚子疼之后,瑪麗勸彼得的話,比方 彼得既然吃飽就不應(yīng)該再吃, 應(yīng)該小心的選擇食物, 肚子疼就應(yīng)該看大夫,吃 藥, 躺下來休息等等. 練習(xí)的作法是瑪麗說一句話, 然后老師會(huì)念出一個(gè)用 過去分詞開頭的詞組, 請(qǐng)你跟瑪麗一起把詞組代換到原來的句子里.

F: You should have stopped eating when you were full.

M: eaten less

F: You should have eaten less.

M: been more careful about what you ate

F: You should have been more careful about what you ate.

M: chosen the right things to eat

F: You should have chosen the right things to eat.

M: had dinner at home

F: You should have had dinner at home.

M: gone to a doctor

F: You should have gone to a doctor.

M: taken some medicine

F: You should have taken some medicine.

M: lain down and rest

F: You should have lain down and rest.

三.MUST HAVE

下面一組練習(xí)是用 must have 加上動(dòng)詞過去分詞來表示自己認(rèn)為過去一定發(fā) 生的事情. 比方瑪麗聽說彼得前一天晚上吃那么多就下結(jié)論說:當(dāng)時(shí)你一定覺 得很不舒服; 你肚子疼一定是吃太多, 太快了, 等等.

練習(xí)的作法是瑪麗說一句話, 然后老師說出一個(gè)動(dòng)詞詞組請(qǐng)你用動(dòng)詞過去分 詞作代換練習(xí). 每作完一個(gè)句子, 老師就會(huì)念出正確答案給你聽.

F: You must have felt sick.

M: feel terrible

F: You must have felt terrible.

M: have an upset stomach

F: You must have had an upset stomach.

M: have too much food

F: You must have had too much food.

M: eat something bad

F: You must have eaten something bad.

M: eat too fast

F: You must have eaten too fast.

《中級(jí)美國英語Lesson41:虛擬語氣[一]》永久閱讀地址: http://www.jiazhineng.cn/yingyu/713/