英语不定式﹒现在分词和过去分词.ppt

非谓语动词 语法讲解 非谓语动词的类型: 1.吸烟对你来说是不好的。 不定式用在介词but, except, besides后时,如果这些介词前有行为动词do的各种形式,那么介词后的不定式不带to, 相反则带to. (1). She could do nothing but ____ .(cry) (2). I have no choice but____. (go) (3).What do you like ____ besides____ . (do, sleep) (1)动宾关系 I have a lot of work to do. (2)主谓关系 He is always the first to come. (3)同位关系 We all have a chance to go to college. had better+ (not) do sth. 最好（不）做某事 Why (not) do sth.? …prefer to do/prefer doing …prefer + n./doing A +to + n./doing B …prefer + to do A rather than (to) do B …would rather (not) do sth. …would rather do A than (do) B …would rather + 句子（过去式） （虚拟语气） 要做…… 注意以下几种情况不定式的用法 *在the first, the second…，the last和only之后，只能用to do。 如：He was the last to leave the classroom ． *如果understand，realize, know用在begin, start, attempt, intend后，只能用to do。 如：I began to understand the truth． *表示目的的不定式的否定式一般不用not to do,而用in order not to do或so as not to do。 如：(√)In order not to be seen, he came into the room through the window． (×)Not to be seen, he came into the room through the window． (√)He came into the room through the window so as not to be seen． *so as to do一般不放在句首。 (√)He get up at five this morning so as to catch the early bus． (X) So as to catch the early bus，he got up at five this morning． 1.To see you is glad. =It’s glad to see you. 2.I want to see you. 3.I want him to see you. 4.My hope is to see you. 5.He is the man to see you. 6.I’m glad to see you. 7.I went to see you. 8.He went so early as to see you 9. To tell you the truth, I don’t agree with you. 10. How to solve this problem is very important. 分词在句中承担的成分: 由于分词具有形容词性和副词性,在句子中不能充当具有名词特征的主语和宾语. 1.作定语 3. The problem bothering us is the lack of money. 4. These are goods imported from Japan. 巩固练习一 用所给动词的正确形式填空： 1)The man__________ (question) in the police station now is a spy． 2)A man_______ (respect) others will be respected． 3)Half of the guests _______(invite) to the confer