Meeting your ancestors
注意：區別現在完成時和現在完成進行時的區別。一般來說現在完成時表示已經完成，而現在完成進行時表示還沒完成還要延續下去或者剛剛完成。試比較：they have built a house. (完成) / they have been building a house. (尚未完成)[練習] 在括號里填入所給詞的適當形式。 1). we ________ ________ (work) for two hours by the time she came.2). last year he ________ (write) a novel. i don’ t know whether he ________ (finish) now. 3). since 1977, cctv ________ (broadcast) english programmes. keys: 1). had been working 2). was writing; has finished 3). has been broadcasting2. our evidence suggests they did indeed wear clothes made form animal skins. 我們的證據表明他們確實穿了用動物皮做成的衣服。[解釋] suggest最常用有兩個意思：(1)：提議；提出；建議，后接動詞要用動詞的ing形式，后接賓語從句時，從句用虛擬語氣(“should+動詞原形”，should常省略)。如：1). it’ s noisy here. i suggest changing another hotel. 這里太吵了，我建議換個賓館。2). i suggest (that) you (should) ask mr. wu. 我建議你問問吳先生。3). i suggest that the boy be sent to the hospital at once. 我建議立即把小孩送醫院。后接賓語從句要用虛擬語氣的詞可記為：一個堅持：insist / 二個命令：command, order / 四個建議：advise, suggest, recommend, propose / 四個要求：ask, demand, request, require(2)：表明，顯示，暗示；顯出，后接賓語從句(不用虛擬語氣)。如：his expression suggests that he has got the job.他臉上的表情表明他已經得到了那份工作。[練習] 在括號里填入所給詞的適當形式。 1). i wrote suggesting that he ________ (come) for the weekend. 2). he demands that he ________ (tell) everything. keys: 1). come 2). be told