<例句>
You need not come to the meeting if you are too busy.
如果你太忙就不必來參加會議了。
<語法分析>
need作為情態(tài)動詞,可以用在否定結(jié)構(gòu)中,表示“不必”。在賓語從句中,即使主語動詞是過去式,仍可用need。此外,need在作為情態(tài)動詞時,在帶有否定意義的句子中和表示疑問的從句中,也可以用need。作為及物動詞,need表示“需要”,后面可以跟名詞、代詞、不定式、動名詞或復(fù)合賓語等。
<觸類旁通>
(1) You needn't have come in person, a letter would been enough.
其實你不必親自來,寫封信就夠了。
語法分析:作為情態(tài)動詞need用于否定結(jié)構(gòu)中,表示“不必”。
(2) She said that she needn't send a deposit.
她說她無需寄現(xiàn)金來。
語法分析:在賓語從句中,即使主語動詞是過去式,扔可用need。
(3) Need I tell you?
我需要告訴你嗎?
語法分析:情態(tài)動詞need構(gòu)成疑問句。
(4) Do you need any help?
你需要什么幫助?
語法分析:作為及物動詞,need后面可以跟名詞或代詞。
(5) I need to ask some advice.
我需要向別人求救。
語法分析:后面跟不定式。
(6) My hair needed cutting.
我需要理發(fā)了。
語法分析:后面跟動名詞。
(7) She needed her eyes tested.
她需要請人驗光。
語法分析:后面跟復(fù)合賓語。
<鞏固練習(xí)>
(1) We _____ you to work for us.
(2) This jumper _____ washing.
(3) Do we _____ to buy tickets in advance?
(4) All living things _____ water.
(5) ______ I come tomorrow?
(6) Nobody _____ be afraid of catching the disease.
(7) He ______ not have been punnished so severely.
<參考答案>
(1) need (2) needs (3) need (4) need (5) Need (6) need (7) need