問題詳情：
________ it easier to get in touch with us, you’d better keep this card at hand.
A ． Made B ． Make
C ． Making D ． To make
【回答】
D
【詳解】
考查不定式作目的狀語。句意：爲了更方便地聯繫到我們，你最好隨身帶着這張卡片。根據句意可知，這裏是目的狀語，表目的用動詞不定式，故選 D 。
【名師點睛】
一、不定式的作用
1. 作主語
不定式作主語時，謂語用單數。往往用 it 作形式主語，把不定式放在謂語後面。
例如： It took us two hours to finish the job.
It is impossible for us to get there on time.
It is very kind of you to help us.
2. 作賓語
(1) 動詞 + 不定式。
例如： He managed to escape from the fire.
I find it hard to get along with him. （ it 作形式賓語）
注： 下列動詞通常用不定式作賓語： want, try, hope, wish, need, forget, know, promise, refuse, help, decide, begin, start, learn, agree, choose, get 等。
(2) 動詞 + 疑問詞 +to , “ 特殊疑問句 + 不定式 ” 相當於名詞，作賓語。
例如： I don’t know what to do next / how to do it next.
I can’t decide when to go there.
注意：不定式短語作賓語時，如果還帶有賓語補足語，往往把不定式短語放在賓語補足語之後，用 it 作形式賓語。例如： I find it necessary to learn a foreign language.
3. 作賓語補足語
(1) 動詞 + 賓語 + 不定式（ to do ）。
例如： He warned me to be careful.
I want you to speak to Tom.
What makes you think so? （不帶 to 的不定式）
注：可以用動詞不定式作賓補的動詞有： ask, tell, order, want, get, would like, like, advise, invite, allow, help, wish, warn, expect, would prefer, encourage 等。
(2) 表見解、看法的動詞結構可爲：動詞 + 賓語 + to be 的不定式結構。
例如： We consider Tom to be one of the best students in our class.
The book is believed to be useful. （被動語態）
(3) There + 不定式。
例如： We didn’t expect there to be so many people there.
注意：有些動詞需用 as 短語作補語，像 regard, think, believe, take, consider 。例如：
We regard Eric as our best teacher.
Mary took him as her father.
(4) 在動詞 feel( 一感 ), hear, listen to( 二聽 ), have, let, make( 三讓 ), notice, see, watch, observe, look at( 五看 )( 即：五看三使兩聽一感覺 ) 等後面的補足語中，不定式不帶 to ，但變爲被動語態後，必須帶 to 。例如：
They saw the boy fall off the tree.
The boy was seen to fall off the tree.
(5) help 後面作賓語補足語的不定式可以帶 to ，也可以不帶 to 。
例如： I often help him (to) clean the room.
I helped him (to) find his things.
4. 作定語
不定式作定語，修飾名詞或代詞，不定式和它所修飾的名詞之間有邏輯上的主謂關係、動狀關係、同位關係或動賓關係。不定式通常要放在這些被修飾的詞後。
例如： I have a lot of work to do. （動賓關係）
He is looking for a room to live in. （動狀關係）
He is the first person to think of the idea. （主謂關係）
He has got a chance to go abroad. （同位關係）
注意： (1) 不定式的邏輯主語是句子的主語時，不定式用主動形式表被動。例如：
Do you have anything else to say?
(2) 如果作定語的不定式是一個短語，則要保留不定式短語中的副詞或介詞。例如：
I need a pen to write with. (I will write with a pen.)
I have a little baby to look after. (I must look after the little baby.)
5. 作狀語
作狀語，表示目的、結果、原因等，有時還有一些固定搭配的不定式短語，如 in order to, so as to, so…as to, such…as to, …enough to, too…to 等。
(1) 作目的狀語， just to, only to （僅僅爲了） , in order to, so as to, so(such)…as to… （如此 …… 以便 …… ）。
例如： He ran so fast as to catch the first bus.
(2) 作結果狀語，表事先沒有預料到，要放在句子後面。
例如： He hurried to the post office only to find it was closed.
(3) 作原因狀語。
例如： We were very excited to hear the news.
(4) 作條件狀語。
例如： To turn to the left, you could find a post office.
6. 作表語
不定式可放在 be 動詞後面，構成表語。
例如： The question is how to put it into practice.
My question is when to leave.
His dream is to be a doctor.
注意： (1) 不定式在句中作表語時，對應的謂語動詞用單數。
(2) 當主語是不定式時，表語不能用 v+ing 形式，可用不定式。
例如： To see is to believe. (="Seeing" is believing. )
二、不定式的時態和語態
1. 不定式的時態
(1) 現在時：有時與謂語動作同時發生，有時發生在謂語動詞的動作之後。
例如： He seems to know this.
I hope to see you again.
(2) 完成時：表示的動作發生在謂語動作之前。
例如： I’m sorry to have given you so much trouble.
He seems to have caught a cold.
(3) 進行時：表示動作正在進行，與謂語動作同時發生。
例如： He seems to be eating something.
(4) 完成進行時：表示動作從過去某個時間開始，一直延續到現在，並有可能持續下去。
例如： She is known to have been working on the problem for many years.
2. 不定式的語態
當不定式的邏輯主語是其動作的承受者時，就用被動式。
例如： He was seen to enter the hall.
He asked to be sent to work in Tibet.
知識點：狀語從句
題型：選擇題
