【正文】 定式短語，不定時短語在句子中可以用作主語、表語、賓語、補(bǔ)足語、定語、狀語等。例如：To be a doctor is 。To learn English well is not 。動詞不定式（短語）作主語時，為了避免句子的頭重腳輕，可以用“it”作形式主語，而把真正的主語－－動詞不定式（短語）放在句子的后部。例如上面的句子可以表示為：It is hard to be a is not easy to learn English 如：It’s important to plant trees in ，可以在動詞不定式的前面加一個由介詞for引導(dǎo)的短語，稱為不定式的復(fù)合結(jié)構(gòu)。例如：It’s good for us to read aloud in the 。It is important for students to use English every 。：動詞不定式（短語）作表語常用于系詞be的后面。例：His work is to drive a 。My job is to feed 。Her ambition is to be a 。動詞不定式（短語）可以放在一些動詞后面用作賓語，能以動詞不定式作賓語的動詞有：begin, start, want, forget, remember, show, learn, like, hate, love, ask等。例：I want to tell you a 。They begin to work at eight every 。Don’t forget to lock the 。Would you like to go and have a piic with us tomorrow?明天和我們一起去野餐好嗎？*如果and連接兩個動詞不定式，第二個動詞不定式一般省“to”例：（1）He wants to go and have a swim with 。（2）若作賓語的動詞不定式（短語）很長，可用it作形式賓語。I find it interesting to learn Chinese with 。He found it hard to catch up with 。例如：The teacher asked us to read aloud for half an hour in the 。The teacher often tells Jim not to spend too much time playing puter 。Please let me help 。動詞不定式作賓語補(bǔ)足語，表示賓語所做的動作，可以用動詞不定式作賓 語補(bǔ)足語的動詞有：tell, ask, want, like, invite, encourage, help等。但在let, make, have，see, watch, hear, feel, notice等感官聽覺動詞或使役動詞后面作賓語補(bǔ)足語的動詞不定式一般要省略動詞不定式符號“to”，可以歸納為以下三種句式：：tell /ask / want / would like / wish / like / invite /encourage /teach do ：The teacher told us to e earlier want you to go 。Her parents wish her to be a ?！皌o”的不定式作賓語補(bǔ)足語：Let / make / have the boy go out 。The boy made the baby 。see / watch / hear / notice / feel saw the students play basketball on the playground 。I often hear the girl sing in the next 。：help sb.（to）do often help my mother（to）do 。*：（1）Tell them not to play football in the 。（2）：Let the boy not 。（3）如果將主動語態(tài)變?yōu)楸粍诱Z態(tài)時，作賓語補(bǔ)足語的動詞不定式變?yōu)橹髡Z補(bǔ)足語，動詞不定式則不省“to”，即原來省的再加上，例：The boy made the baby baby was made to cry by the 。動詞不定式作定語常用來修飾名詞或不定代詞，放于所修飾的詞后，為后置定語。例：Who was the first one to arrive?誰第一個到的？She has no paper to write on?她沒有紙寫字？The best way to learn English is to use 。When is the best time to plant vegetables?什么時候是種植蔬菜的最好時間？Do you have something to drink?你這有喝的嗎？*動詞不定式（短語）作定語修飾名詞時，與其所修飾的詞具有一種動賓關(guān)系，如果不定式中的動詞為不及物動詞時，其后應(yīng)加上一個含義上所需要的介詞。例：I have no chair to sit 。He has no house to live 。：動詞不定式作目的狀語常用在go, e, hurry等不及物動詞后，表目的。He went to see his sister 。They got up early to catch the early 。有時可以把不定式（短語）提前，放于句首，表示強(qiáng)調(diào)目的。例：To learn English quickly and well, he went to ，他去了英國。，可以作句子的主語、賓語、表語等。例：The problem is where to get a puter.（表語）No one knows how to do 。（賓）I really don’t know which one to choose.（賓）我真的不知道選哪一個。When and where to have the party is not known.（主語）何時何地舉行聯(lián)歡還不知道。*不定式和疑問詞連用作賓語時有時可以改為賓語從句。例：I don’t know what to do ？I don’t know what I should do next.【模擬試題】（答題時間：30分鐘）： asked me ________ here e tell him _______ on the ’t draw not draw to draw draw wanted ________ a cup of have ’d like ________ a word with have came here _______ my see be seen man refused（拒絕）________ back his take can let you ________ one have often heard him _________ in his sing was made ________ day and work stopped ______ a look, but saw have father was too angry _________ a say to say saying’t say 11 brother was old enough ________ to go is time ________ him ________ , to have, to have, having, to has ’s very kind _______ you ______ , to help, to help, help, helping ’s important _________ our classroom clean every keep give liberation（解放）they had no chance _______ to go be gone 12 said he had an important meeting attend attend give me a piece of paper write write on write i ’t know do will do to do what radio needs ，to be repaired repair repairing wish is ________ a don bee want ________ him a letter , to write write took us three days _________ the plant not ________ here _______ me? e, to seeB，e, to see, seeing, see wishes me ______ my best________ hard at ，to do, to work, working do, working, work tell me ________ have something _______ to find, tellingB, where to find, to tell can find, to tell finding, telling happy they are ______ each other again!A，to see seen decided（決心）_______ a letter ______ their write, expressing（表達(dá)）, express , expressed D, to write, to express officer ordered（命令）him _ ______ down _________ a , haveB，to lie, to have lie, having, had headmaster called on（號召）us ______ hard for our work working【試題答案】