【正文】
ng all 。46. I forgive you for being 。48. Begged the host39。50. She could hardly resist laughing。51. Postpone sending an 。不定式:不定式表示發(fā)生在謂語動詞發(fā)生之后;動詞不定式一般與句子的主語,賓語或結(jié)構(gòu)中的借此賓語有邏輯上的主謂關(guān)系。 to have done sth。 to have been doing。 but the manager’s plan is unfair.It was unbelievable that the fans waited outside the gym for three hours just to have a look at the sports stars.He hurried to the station only to find that the train had left.Only to do 表示事與愿違的結(jié)果,未曾料想的結(jié)果。感官動詞 如:see, hear, notice, watch, observe。 make。后面接動詞不定式做賓語補(bǔ)足語時,必須省略to,但是在被動語態(tài)中必須加上to. 3. 動詞不定式短語作表語時一般帶to, 但是如果助于部分含有使役動詞do的各種形式時,則省略to。 Do, did, does, doing, done, to do用but do. 前面有do后面沒to。 5. 在一些固定句型中要省略to: why。 you’d better.... 。 prefer to do rather than do...better do= had better do6. 不定式的成分:除了謂語,其他都可以做 主語:To see one time is better than to hear a hundred To persevere means victory. 堅(jiān)持就是勝利 A. It’s a great pleasure to be here. B. 后知不定時的結(jié)構(gòu)也適用于某些謂語動詞不是系動詞的句子。如: D. 某些形容詞在上述結(jié)構(gòu)中做表語時, 常在不定式之前加上“for+名詞詞組”來說明不定式所致的是誰的情況,形容詞修飾人。To do that would be to cut the foot of fit the shoe. 這樣做無異于削足適履動詞不定式完成時表虛擬語氣一、只能后接不定式的動詞和短語歸納有的動詞后只能用不定式而不能接動名詞。4