2020屆高考英語非謂語動詞全盤攻略
注意：當使役動詞和感官動詞變?yōu)楸粍诱Z態(tài)時，不定式就成了主語補語，作主語補語的不定式必須加to。如：
though he had often made his little sister cry, today he was made to cry by his little sister.
盡管他經(jīng)常弄哭他的小妹妹，但今天他卻被他的小妹妹弄哭了。
he is often heard to sing the song. 經(jīng)常有人聽到他唱這首歌。
③think, consider, believe, declare, suppose, find, imagine, know, understand, take, prove, feel等動詞后面接的不定式短語作補語多由to be+形容詞或名詞構成，think, consider, find后的to be常可省略。如：
when he woke up, she found herself (to be ) badly injured.
她醒來的時候，發(fā)現(xiàn)自己受了重傷。
i thought her (to be) nice and honest the first time i met her.
我第一次見到她的時候就認為她人很好，很誠實。
含有此類復合賓語的句子變成被動語態(tài)時，不定式同樣被稱之為主語補足語。如：
the young man was considered to have great promise. 這個年輕人被認為大有前途。
the situation was found to be quite encouraging. 形勢看來很使人鼓舞。
④以be said, be reported, be known, seem, happen, prove, appear等構成謂語的句子中，動詞不定式通常也可看作主語補語。如：
more than 20 people were reported to have been killed in the accident.
據(jù)報道，有20多個人死于事故。
i happened to be talking with him when he was hit by a car.
他被汽車撞的時候，我碰巧在和他談話。
不定式作定語：
不定式在句中作定語通常放在其所修飾的名詞或代詞之后，以下幾種情況常用不定式作定語：
①能帶不定式作賓語的動詞，其同源名詞可以帶不定式作定語，常見的有attempt, decision, promise, plan, intention, failure, wish, determination等。如：
he hasn’t kept his promise to write to his parents regularly.
他沒有遵守諾言定期給他父母親寫信。
my wish to be a teacher is quite understandable. 我想成為一個教師的愿望是可以理解的。
②常與不定式搭配的形容詞，其同源名詞一般可以帶不定式作定語，常見的有ability, anxiety, eagerness, ambition等。如：
his eagerness to finish his work in time was quite obvious.
他急切地想準時完成工作是很明顯的。
we admire his ability to speak a foreign language so well.
我們欣賞他能把一門外語說得這么好。
③序數(shù)詞、形容詞最高級或被only, last, next等詞修飾的名詞可以用不定式作定語。如：
he is always the first person to come and the last one to leave.他總是第一個來最后一個離開。
the next person to attend the meeting is dr. baker.下一個出席會議的人是貝克先生。