4.不定式作定語 來源：考試大
不定式作定語相當于一個定語從句，它修飾以下幾類名詞：
⑴由動詞派生或轉(zhuǎn)化而來的名詞，它們所對應的動詞通常有不定式作賓語。
Another attempt to climb the mountain will be made next month. in his speech he expressed his determination to achieve the goal. 這類名詞主要有：attempt， claim， decision， plan， promise， intention， need， resolution，tendency， wish， failure， threat等。
⑵由可能與不定式搭配的形容詞派生出來的名詞。
Her eagerness to learn a foreign language obvious.這類名詞主要有：anxiety， patience， ability， willingness， ambition等。
⑶不定式作定語還可用來修飾代詞something， anything， everything， nothing.
she has everything to lose and nothing to gain.
⑷由only， last， next， 序數(shù)詞或形容詞級修飾的名詞后常用不定式作定語。
Jim is the only student to answer the question correctly in his class. you are the last to undertake the blood test.
⑸ 不定式常作為定語修飾there be結(jié)構(gòu)的真實主語。
There is a big task to complete.
⑹ 有些抽象名詞。主要有：reason， right， time， effort， chance， way等。如： the time to go to school， the way to get to the clinic， the chance to win the game.
5.不定式作狀語 來源：考試大
不定式作狀語相當于一個狀語從句，表示形為的目的、結(jié)果或原因。
⑴表示目的。在這種情況下，不定式的邏輯主語通常也是全句的主語。
He stayed there to see what would happen.在強調(diào)不定式目的狀語時，不定式前可加in order， so as等。如：
She asked me to drive her to the airport in order to catch the 5： 00 plane. he moved the tv set to the meeting-room so as to let everyone watch it.
⑵用so……as to……， such （……） as to……， enough to……， too……to， only to等表示結(jié)果，如：
Have you got enough room to seat all of us？
She is too weak to join us in the outing.
⑶將不定式移到句首表示條件，如：
to hear the teacher better， you have to sit in the front. = if you are to hear the teacher better，……
⑷與形容詞連用時，大多表示原因。這些形容詞主要有：happy， kind， surprised， frightened， angry， shocked， glad， delighted， grieved，disappointed等。
They were surprised to be informed of the news. i‘m glad to hear this.
動詞不定式的時態(tài)和語態(tài) 來源：考試大
一般式 to do to be done
完成式 to have done to have been done
進行式 to be doing
完成進行式 to have been doing
1.如果不定式所表示的動作與主要謂語動詞所表示的動作同時（或幾乎同時）發(fā)生或發(fā)生在主要謂語之后，通常用不定式的一般形式。如：
I saw him go out.
I‘m glad to see you.
2.如果不定式所表示的動作發(fā)生在主要謂語動詞或特定的時間之前，不定式就要用完成式。如：
I intended to have telephoned you， but i forgot to.
I should like to have bought a dictionary.
3.不定式進行式表示主要謂語動詞所表示的動作發(fā)生時，不定式所表示的動作正在發(fā)生。如：
I am glad to be talking with you. she pretended to be listening attentively.
4.不定式完成進行時表示的是一個開始于過去某一時刻但一直延續(xù)到謂語動詞發(fā)生的那一時刻的動作。如：
He was thought to have been working on the project for two years.
5.不定式的被動語態(tài)
當不定式的邏輯主語是動作的承受者時，這個不定式要用被動式，包括它的各種時態(tài)在內(nèi)。如：
She doesn‘t like to be treated as a guest.
她不喜歡被當作客人對待。
They want their tv set to be fixed right now
不定式作定語相當于一個定語從句，它修飾以下幾類名詞：
⑴由動詞派生或轉(zhuǎn)化而來的名詞，它們所對應的動詞通常有不定式作賓語。
Another attempt to climb the mountain will be made next month. in his speech he expressed his determination to achieve the goal. 這類名詞主要有：attempt， claim， decision， plan， promise， intention， need， resolution，tendency， wish， failure， threat等。
⑵由可能與不定式搭配的形容詞派生出來的名詞。
Her eagerness to learn a foreign language obvious.這類名詞主要有：anxiety， patience， ability， willingness， ambition等。
⑶不定式作定語還可用來修飾代詞something， anything， everything， nothing.
she has everything to lose and nothing to gain.
⑷由only， last， next， 序數(shù)詞或形容詞級修飾的名詞后常用不定式作定語。
Jim is the only student to answer the question correctly in his class. you are the last to undertake the blood test.
⑸ 不定式常作為定語修飾there be結(jié)構(gòu)的真實主語。
There is a big task to complete.
⑹ 有些抽象名詞。主要有：reason， right， time， effort， chance， way等。如： the time to go to school， the way to get to the clinic， the chance to win the game.
5.不定式作狀語 來源：考試大
不定式作狀語相當于一個狀語從句，表示形為的目的、結(jié)果或原因。
⑴表示目的。在這種情況下，不定式的邏輯主語通常也是全句的主語。
He stayed there to see what would happen.在強調(diào)不定式目的狀語時，不定式前可加in order， so as等。如：
She asked me to drive her to the airport in order to catch the 5： 00 plane. he moved the tv set to the meeting-room so as to let everyone watch it.
⑵用so……as to……， such （……） as to……， enough to……， too……to， only to等表示結(jié)果，如：
Have you got enough room to seat all of us？
She is too weak to join us in the outing.
⑶將不定式移到句首表示條件，如：
to hear the teacher better， you have to sit in the front. = if you are to hear the teacher better，……
⑷與形容詞連用時，大多表示原因。這些形容詞主要有：happy， kind， surprised， frightened， angry， shocked， glad， delighted， grieved，disappointed等。
They were surprised to be informed of the news. i‘m glad to hear this.
動詞不定式的時態(tài)和語態(tài) 來源：考試大
一般式 to do to be done
完成式 to have done to have been done
進行式 to be doing
完成進行式 to have been doing
1.如果不定式所表示的動作與主要謂語動詞所表示的動作同時（或幾乎同時）發(fā)生或發(fā)生在主要謂語之后，通常用不定式的一般形式。如：
I saw him go out.
I‘m glad to see you.
2.如果不定式所表示的動作發(fā)生在主要謂語動詞或特定的時間之前，不定式就要用完成式。如：
I intended to have telephoned you， but i forgot to.
I should like to have bought a dictionary.
3.不定式進行式表示主要謂語動詞所表示的動作發(fā)生時，不定式所表示的動作正在發(fā)生。如：
I am glad to be talking with you. she pretended to be listening attentively.
4.不定式完成進行時表示的是一個開始于過去某一時刻但一直延續(xù)到謂語動詞發(fā)生的那一時刻的動作。如：
He was thought to have been working on the project for two years.
5.不定式的被動語態(tài)
當不定式的邏輯主語是動作的承受者時，這個不定式要用被動式，包括它的各種時態(tài)在內(nèi)。如：
She doesn‘t like to be treated as a guest.
她不喜歡被當作客人對待。
They want their tv set to be fixed right now